Current Medicinal Chemistry - Online First
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101 - 200 of 210 results
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A Comprehensive Analysis of the ITIH Family Across Multiple Cancer Types and an Initial Investigation of ITIH1 in Gastric Cancer
Authors: Qiangqiang Zhong, Baokang Zhao, Xiao She and Xiangjie LiuAvailable online: 12 August 2025More LessIntroductionThe ITIH family, crucial for extracellular matrix stability and cancer progression, is underexplored in multi-omic profiles and immune microenvironments; this study analyzes their roles across cancers and ITIH1’s function in gastric cancer to reveal diagnostic, prognostic, and therapeutic potential.
MethodsWe analyzed RNA-seq, protein expr ession, and clinical data from 33 cancer types and 24 non-cancerous conditions using TCGA, GTEx, GEO, CPTAC, and IMvigor210 datasets. Methods included differential expression analysis, ROC curve assessment for diagnostic potential, Cox regression and Kaplan-Meier survival analyses for prognostic value, GSEA for pathway enrichment, and molecular docking for ITIH1-targeted small molecule screening. Immune microenvironment interactions, tumor mutational burden (TMB), microsatellite instability (MSI), and immunotherapy response were evaluated. in vitro experiments validated ITIH1’s role in gastric cancer using qRT-PCR, Western blotting, siRNA knockdown, and functional assays.
ResultsITIH family genes exhibited differential expression across cancers and non-cancerous conditions, with ITIH1, ITIH4, and ITIH5 showing high diagnostic potential (AUC > 0.90 in multiple cancers). ITIH1 was a risk factor for poor survival in gastric cancer (p < 0.05). Lower ITIH scores correlated with improved survival in patients receiving immune checkpoint inhibitors (p < 0.05). ITIH genes showed strong correlations with immune checkpoints (PD-1, CTLA-4), TMB, and MSI. Molecular docking identified six small molecules, including Entinostat, with high binding affinity for ITIH1 (-8.4 kcal/mol). ITIH1 knockdown in gastric cancer cell lines (HGC-27, AGS) significantly reduced proliferation, migration, and invasion (p < 0.01).
DiscussionThis study underscores the ITIH family's critical role as diagnostic and prognostic biomarkers across various cancers and non-cancerous conditions, with ITIH1's therapeutic potential in gastric cancer highlighted through its impact on tumor progression, though limitations include discrepancies in some ITIH gene expressions between in vitro and in vivo settings, necessitating further validation.
ConclusionOur findings highlight the ITIH family's potential as diagnostic biomarkers, prognostic indicators, and therapeutic targets, particularly in gastric cancer. The identification of ITIH1 inhibitors and their association with immune checkpoints, TMB, and MSI paves the way for improved diagnostics, targeted therapies, and immunotherapy predictions, enhancing patient outcomes across diseases.
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Post-marketing Safety Surveillance of Drug-induced Dementia: Utilizing Signal Detection and Mendelian Randomization in Spontaneous Reports
Authors: Yan Chen, Chen Li, Yinhui Yao and Yazhen ShangAvailable online: 12 August 2025More LessObjectiveMany medications associated with an increased risk of dementia do not have adequate warning labels, leading to a significant underestimation of their potential dangers. This study aims to leverage the FAERS database to identify drugs strongly linked to dementia and to examine the relationship between these drugs using Mendelian randomization techniques. The ultimate goal is to mitigate the risk of developing dementia.
MethodsWe utilized the FAERS database to identify medications significantly associated with dementia cases. The DrugBank, OpenTargets, and STITCH databases were employed to pinpoint the target genes of these drugs. We then conducted Mendelian randomization analysis to explore the correlation between the expression of drug target genes and the incidence of dementia. Additionally, a time-to-onset analysis assessed the temporal relationships of drug ingestions. Furthermore, Gene Ontology (GO), Kyoto Encyclopedia of Genes and Genomes (KEGG), and Protein-Protein Interaction Network (PPI) analyses were performed to investigate the molecular pathways linked to target genes related to drugs associated with dementia.
ResultsA total of 28,139 dementia events were recorded in the FAERS database. Our Mendelian randomization analysis revealed a significant association between the expression of all identified drug target genes and dementia in both blood and brain tissues. Specifically, we identified nine drug target genes with significant correlations, implicating quetiapine, clozapine, valproic acid, alendronate, and digoxin as being strongly associated with dementia, which could provide insight into areas of clinical concern regarding dementia occurrence.
ConclusionThe adverse event data sourced from the FAERS database indicate that certain medications are associated with an increased risk of developing dementia, a finding corroborated by our Mendelian randomization analysis. Establishing a comprehensive monitoring and risk assessment program is crucial for identifying high-risk individuals and facilitating informed medication choices, thereby potentially reducing the incidence of dementia.
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An Advanced Network Pharmacology Study Reveals the Multi-Pathway and Multi-Gene Regulatory Mechanism of Jinbai Heat-clearing Prescription in HPV-induced Cervical Cancer via Molecular Docking and Microarray Data Analysis
Authors: Sui Liu, Zixiao Jiang, Junlei He, Xiangxin Niu, Changhua Yue, Shiou Yih Lee, Zhangxin Yu and Yangyang LiuAvailable online: 08 August 2025More LessIntroductionCervical cancer, primarily driven by high-risk human papillomavirus (HPV) infection, remains a global health challenge due to limited therapeutic efficacy and adverse effects of conventional treatments. Jinbai Heat-Clearing Prescription (JBHCP), a Traditional Chinese Medicine (TCM), exhibits potential against HPV-associated cervical cancer, yet its molecular mechanisms are unclear. This study aimed to elucidate JBHCP’s multitarget regulatory mechanisms in HPV-induced cervical carcinogenesis.
MethodsNetwork pharmacology, UHPLC-Q-TOF-MS-based metabolomics, and microarray data analysis were integrated to identify the bioactive components and therapeutic targets of JBHCP. Molecular docking and 60 ns Molecular Dynamics (MD) simulations were used to assess the interactions between key compounds (JBHCP673, JBHCP727) and cyclin-dependent kinases (CDK1/CDK2). Gene Ontology (GO), KEGG pathway enrichment, and Protein-Protein Interaction (PPI) network analyses were performed to explore biological functions and signaling pathways.
ResultsUHPLC-Q-TOF-MS identified 816 compounds in JBHCP, with 86 meeting drug-likeness criteria. Network analysis revealed 215 shared targets between JBHCP and HPV-induced cervical cancer, including CDK1 and CDK2 as core regulators. Enrichment analysis highlighted JBHCP’s involvement in cell cycle regulation, PI3K/AKT, and STAT3 signaling pathways. Molecular docking demonstrated strong binding affinities of JBHCP727 with CDK1 (-7.36 kcal/mol) and CDK2 (-6.13 kcal/mol). MD simulations confirmed stable binding of JBHCP727 to CDK1/2, while JBHCP673 exhibited instability. ADMET predictions supported JBHCP727’s drug-like properties.
DiscussionJBHCP exerts anticancer effects by targeting CDK1/2, disrupting cell cycle progression, and modulating oncogenic pathways (PI3K/AKT, STAT3). The stability of JBHCP727-CDK complexes suggests its role in inhibiting HPV-driven proliferation. Multi-component synergy enables JBHCP to act on diverse pathways, aligning with TCM’s “multitarget” paradigm.
ConclusionThis study provides the first systematic evidence of JBHCP’s multi-pathway mechanism against HPV-associated cervical cancer, emphasizing CDK1/2 inhibition as a key therapeutic strategy. JBHCP727 emerges as a promising lead compound. Further in vivo and clinical validation is warranted to translate these findings into clinical applications.
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Discovery of Furan-tethered Triazolothiadiazoles and Triazolothia- diazines as Potent Tyrosinase Inhibitors for the Treatment of Skin Diseases: Insights from Kinetics Data and Computational Modeling
Available online: 06 August 2025More LessIntroductionTyrosinase, a copper-containing enzyme, is responsible for melanin production, and its overactivity can lead to hyperpigmentation.
MethodsThis study aimed to evaluate triazolothiadiazoles (3a-h, 4a-f) and triazolothiadiazines (5a-h) against human and mushroom tyrosinase isozymes.
ResultsSeveral derivatives, such as 3a-3b, 3d, 4c-4f, 5d, and 5e, were identified as potent and selective inhibitors of mushroom tyrosinase, with IC50 values ranging from 1.9 to 15.2 µM. Similarly, compounds 3f, 4b, 5a, and 5b effectively inhibited human tyrosinase, with IC50 values between 12.6 and 18.5 µM. Mechanism-based studies revealed that these active compounds exhibited competitive inhibition against both isozymes without any cytotoxic effects. In-silico analysis further demonstrated that these compounds fit well into the active site of both tyrosinase isozymes.
ConclusionAdditionally, the pharmacokinetic profile of these compounds highlighted promising drug-like properties, making them potential candidates for the development of effective therapeutics for skin disorders.
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Recent Advancement of Fecal Microbiota Transplantation in the Treatment of Ulcerative Colitis- A Review
Authors: Yiting Lin, Peiru Wang, Xi Hu, Qinjia Wang, Quan Shi, Yanna Zhou, Ruisheng Liu and Xianbin CaiAvailable online: 06 August 2025More LessFecal Microbiota Transplantation (FMT) involves the transfer of gut microbiota from healthy donors to recipients, aiming to reestablish microbial equilibrium within the gastrointestinal tract. The human gut harbors a complex and diverse microbial ecosystem, comprising bacteria, viruses, and fungi, that is essential for maintaining intestinal homeostasis. Emerging evidence indicates a strong association between gut microbial dysbiosis and the pathogenesis of Ulcerative Colitis (UC). FMT has been shown to modulate microbial composition, alter immune signaling pathways, enhance intestinal barrier function, and influence the production of proinflammatory mediators, thereby affecting disease progression. This review critically examines the efficacy, safety, modulatory factors, combination therapies, and predictive strategies associated with FMT in the context of UC. The findings suggest that FMT represents a highly promising therapeutic modality for UC. Overall, this review aims to provide a comprehensive and impartial synthesis of current knowledge regarding FMT, offering deeper insights into its therapeutic potential and clinical applicability in UC management.
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Hybrids/Conjugates/Chimera Drugs-Antimicrobial Hybrids: Antibiotics, Antifungals, Antituberculars, Antimalarials
Available online: 04 August 2025More LessAntimicrobial hybrids are compounds that can inhibit, stop the growth of, or kill microorganisms, including bacteria, fungi, and parasites. Antibiotics, a subset of antimicrobial agents, specifically target bacteria and include well-established classes such as β-lactams, macrolides, quinolones, and oxazolidinones. Other antimicrobial hybrids are designed for treating a wide range of diseases, including fungal infections, leishmaniasis, parasitic diseases (such as trypanosomiasis and malaria), leprosy, and tuberculosis. Some hybrids are designed to treat a variety of diseases. This review highlights studies primarily published between 2000 and 2023, with a few from 2024, underscoring the dynamic and rapidly evolving nature of antimicrobial hybrid research.
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Participation of MDM2 in Pro-Apoptotic and Androgen Receptor-Degrading Potency of Selected Steroid and Terpenoid Derivatives
Available online: 04 August 2025More LessThis review aims to highlight anti-proliferative, pro-apoptotic, and androgen receptor-degrading activity of selected steroid and terpenoid derivatives in cancer cells, primarily in prostate cancer cells. Steroid and terpenoid derivatives (steroid hybrids, comprising androstane or pregnane skeleton associated with nitrogen containing heterocycle, some natural sterols, bile acids, and related semi-synthetic derivatives; oleanane and ursane type pentacyclic triterpenoids; lanostane and dammarane type tetracyclic triterpenoids), were reported earlier to cause the death of cancer cells via apoptosis; some compounds exhibited significant anticancer potency in vivo and may be considered as promising anticancer agents. The presented data indicate that direct interaction of steroid and terpenoid derivatives with the key oncogenic protein MDM2 makes a significant contribution to anti-proliferative, pro-apoptotic, and androgen receptor-degrading activity of these compounds. It triggers apoptosis, which leads to cell death. Structural optimization of steroid and terpenoid derivatives can significantly increase their affinity to MDM2 and improve their anti-proliferative, pro-apoptotic, and androgen receptor-degrading activity.
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Causal Relationships Between Modifiable Risk Factors and Gastroesophageal Reflux Disease: A Two-Sample Mendelian Randomization Study
Authors: Zhongqiu Zhou, Gang Shen, Wenying Zhou, Jiao Gong and Bo HuAvailable online: 01 August 2025More LessIntroductionGastroesophageal reflux disease (GERD) is a prevalent digestive disorder, yet the causal roles of modifiable risk factors remain unclear. This study aims to investigate the causal relationships between 28 modifiable risk factors (including obesity traits, mental health disorders, sleep traits, metabolic comorbidities, and serum parameters) and GERD using two-sample Mendelian randomization (MR). Gastroesophageal reflux disease (GERD). Our findings aim to inform targeted prevention and treatment strategies for GERD.
MethodsThis study obtained data from extensive genome-wide association studies (GWAS). Pooled data associated with gastroesophageal reflux associations were obtained from the 23andMe Research team’s research, which included a total of 129,080 cases of gastroesophageal reflux and 473,524 controls of European ancestry. We conducted a univariable Mendelian randomization (MR) analysis to ascertain whether genetic evidence of exposure demonstrated a statistically significant association with the risk of GERD. Subsequently, a multivariable MR analysis was carried out to estimate the independent effects of the exposures on GERD.
ResultsUnivariable MR analysis utilizing extensive GWAS data suggested that genetic factors such as BMI, Waist circumference, Arm fat mass (left and right), Leg fat mass (left and right), Attention Deficit and Hyperactivity Disorder (ADHD), Major Depressive Disorder (MDD), Schizophrenia, Negative emotions (including nervousness, anxiety, tension, or depression), Insomnia, Sleep apnea syndrome, Sleep duration, and Snoring, as well as Total cholesterol levels and Apolipoprotein B levels, are associated with the development of GERD. Multivariate Mendelian randomization of BMI and Negative emotion as correction factors showed that Waist circumference, Arm fat mass (left and right), Leg fat mass (left and right), ADHD, Insomnia, Sleep apnea syndrome, and Snoring were associated with an increased risk of GERD (p< 0.05). Conversely, longer sleep duration was associated with a reduced risk of GERD (p< 0.05).
DiscussionThis MR study reveals novel causal mechanisms in GERD pathogenesis: (1) Peripheral adiposity (arm/leg fat mass) exerts independent effects beyond central obesity, indicating site-specific fat distribution significance; (2) ADHD emerges as a distinct psychiatric risk factor independent of mental disorders; (3) Sleep apnea operates through BMI-independent pathways. Collectively, these findings redefine GERD pathophysiology, highlighting fat depot specificity and brain-gut interactions as critical mechanistic drivers.
ConclusionOverall, our findings suggest that multiple risk factors are associated with the risk of GERD. These results provide a theoretical basis for controlling body weight and plasticity, improving sleep habits, and preventing and timely seeking medical attention to reduce the occurrence of psychiatric disorders, which will be important strategies to prevent and alleviate GERD.
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Targeted Anti-Inflammatory Effects of CHLoramphenicol via TLR4 Inhibition in Postoperative Hemorrhoid Treatment: A Clinico- Computational Cohort Study
Available online: 31 July 2025More LessIntroductionPostoperative hemorrhoidectomy wounds are prone to inflammation and microbial infection due to their anatomical location, necessitating effective therapeutic strategies. CHLoramphenicol (CHL) is a broad-spectrum antibiotic with potential anti-inflammatory properties via Toll-like receptor 4 (TLR4) inhibition. This clinico-computational cohort study investigates CHL’s dual therapeutic mechanism in postoperative hemorrhoid management, combining clinical outcomes with molecular modeling to elucidate its anti-inflammatory and antimicrobial effects.
MethodsA prospective, controlled cohort study was conducted with 155 patients (55 CHL, 39 reference treatment [PR], 61 control) undergoing hemorrhoidectomy. CHL ointment (≤120 mg/day) was applied topically until granulation tissue appeared. Clinical outcomes, including edema resolution, granulation tissue formation, and pain scores, were assessed using ImageJ for wound area analysis and the visual analog scale (VAS) for pain. Molecular docking and dynamics simulations were performed using AutoDock and AMBER 22 to evaluate CHL’s binding affinity to TLR4 compared to the reference inhibitor TAK-242. Statistical analyses included ANOVA, Mann-Whitney U tests, and post hoc power calculations.
ResultsCHL significantly accelerated wound healing, with 53.2% of patients achieving complete edema resolution by day 3 (vs. 43.6% by day 4) and faster granulation tissue formation (3.58 ± 0.60 days vs. 7.08 ± 1.20 days in control, p<0.0001). Pain scores were significantly reduced in the CHL group. Molecularly, CHL exhibited superior TLR4 binding (ΔGtot = -25.97 kcal/mol vs. -20.69 kcal/mol for TAK-242), with stable complex formation and persistent interactions at Ile-135 (buried surface area: 350 Å2). Healing times were 13.5–19.8 days faster in the CHL group (mean 41 days vs. 54.5–60.8 days in control).
ConclusionCHL demonstrates dual therapeutic potential in postoperative hemorrhoid management by inhibiting TLR4-mediated inflammation and microbial infection. Its superior binding affinity and clinical efficacy suggest it as a promising multifunctional agent. Further in vitro and long-term studies are needed to validate these findings and explore broader applications in surgical wound care.
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New 4-Benzenesulfonamide Derivatives of Pyrazolo[1,5-a][1,3,5]triazine as Purine Bioisosteres: Development, Synthesis, and Anticancer Perspective
Authors: Ivan Semenyuta, Stepan Pilyo, Bohdan Demydchuk, Oleksandr Lyavinets and Volodymyr BrovaretsAvailable online: 31 July 2025More LessIntroductionSeven new 4-[2-(dichloromethyl)pyrazolo[1,5-a][1,3,5]triazine derivatives were investigated for anticancer activity, possible molecular mechanisms of anticancer action, and ADMET properties.
MethodsThe 4-benzenesulfonamide derivatives of pyrazolo[1,5-a][1,3,5]triazine were synthesized using the condensation of N-(2,2-dichloro-1-cyanovinyl)-amides IV with 1H-pyrazol-5-amine. Compound antitumor activities were evaluated using the NCI-60 human cancer cell line. AutoDockTools and AutoDock Vina software were used for molecular modeling. Using the ADMETlab 3.0 and pkCSM web sources, the ADMET properties of compounds 4, 5, and 7 were calculated.
ResultsSeven new pyrazolo[1,5-a][1,3,5]triazine derivatives were synthesized. The compounds 4, 5, and 7 exhibit high activity >1 µM against leukemia, colon, and renal cancer. Compound 4 exhibited the most potent activity, with IC50 values of 0.32 µM against leukemia, 0.49-0.89 µM against colon cancer, and 0.92 µM against renal cancer. Molecular modeling has demonstrated a potential antitumor mechanism involving CDK. The predicted ADMET profile of compounds 4, 5, and 7 is favorable.
DiscussionThe seven novel pyrazolo[1,5-a][1,3,5]triazines, as purine bioisosteres, were developed, synthesized, and investigated by in vitro and in silico methods.
ConclusionSeven novel pyrazolo[1,5-a][1,3,5]triazine derivatives exhibited anticancer activity against the NCI-60 cancer cell lines. The compounds 4, 5, and 7 demonstrated strong anticancer activity, with growth inhibition (GI) values exceeding 50% across all nine cancer types tested. The most active compound, 4, is against leukemia, colon cancer, renal cancer, and lung cancer. All compounds exhibit low toxicity, with LC50 values of 100 µM or greater. The molecular docking of compounds 4, 5, and 7 revealed the potential to inhibit cancer-associated cyclin-dependent kinases. The predicted ADMET profiles of their compounds are favorable, providing a basis for further improvement of their anticancer activity.
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Synthesis, Antiproliferative Activity, ADME Profiling, and Docking Studies of Novel 1, 2, 3-Triazole Derivatives of 2-Amino and 2-Mercaptobenzoxazole
Available online: 31 July 2025More LessIntroductionBenzoxazole is a privileged scaffold with diverse biological activities, and its hybridization with a 1,2,3-triazole ring can improve affinity and efficacy. This study aimed to synthesize novel 1,2,3-triazole derivatives of 2-aminobenzoxazole and 2-mercaptobenzoxazole, and to evaluate their antiproliferative activity, predicted pharmacokinetic properties, and molecular interactions with kinase targets.
Methods1,2,3-triazole derivatives of 2-aminobenzoxazole 3−15 and 2-mercaptobenzoxazole 18−32 were synthesized via cyclization, propargylation, and copper-catalyzed click reaction. Antiproliferative activity was evaluated against human cancer cell lines: LN-229, Capan-1, HCT-116, NCI-H460, DND-41, HL-60, K-562, and Z-138. The ADME properties of 1,2,3-triazole-benzoxazole hybrids were evaluated using the SwissADME tool. The most active compounds were assessed for Human Gastrointestinal Absorption (HGA) and Blood-Brain Barrier (BBB) permeability using the Egan model. Molecular docking was performed on serine/threonine kinase TAO2 and tyrosine kinase c-Src.
ResultsA series of novel 1,2,3-triazole derivatives of 2-amino 3−15 and 2-mercaptobenzoxazole 18−32 were synthesized via click chemistry. Coumarin-containing compounds 3 and 29 showed the most pronounced antiproliferative activity across all tested cell lines. Both demonstrated high predicted HGA and low likelihood of crossing the BBB. Compound 3 exhibited the highest binding affinity for TAO2, while compound 29 showed strong interaction with c-Src.
DiscussionThe results highlight the favorable influence of coumarin substitution on antiproliferative activity, with computational ADME and docking data supporting the observed in vitro efficacy.
ConclusionThis study outlines a viable method for the synthesis of novel 1,2,3-triazole derivatives of 2-aminobenzoxazole and 2-mercaptobenzoxazole. Compounds 3 and 29 demonstrate promising antiproliferative activity and pharmacokinetic potential, supporting their further development as anticancer candidates.
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Exploration of Resveratrol Derivatives as Novel Therapeutic Modulators of 11β-Hydroxysteroid Dehydrogenase 1 Activity in Metabolic Dysregulation
Available online: 30 July 2025More LessBackgroundMetabolic dysregulation, encompassing conditions such as type 2 diabetes mellitus, obesity, metabolic syndrome, and dyslipidemia, poses an increasing global health burden. The dysregulation of 11β-hydroxysteroid dehydrogenase 1 (11β-HSD1), a key enzyme in glucocorticoid metabolism, has been strongly implicated in the pathogenesis of these disorders by influencing glucose homeostasis, lipid metabolism, and insulin sensitivity. Consequently, targeting 11β-HSD1 offers a promising therapeutic strategy for mitigating metabolic dysregulation and its associated complications.
AimThe study aimed to identify resveratrol derivatives with high binding affinity and inhibitory potential against 11β-HSD1, using computational approaches to evaluate their pharmacokinetic and toxicity profiles.
MethodsA library of resveratrol derivatives was screened using molecular docking to identify high-affinity compounds. The hit compounds were further evaluated for absorption, distribution, metabolism, excretion, and toxicity (ADMET) properties, followed by molecular dynamics simulations to assess their stability.
ResultsThe resveratrol cis-dehydrodimer emerged as the most promising candidate, demonstrating high binding affinity, favorable ADMET properties, and stability over a 200 ns simulation period. These findings suggest its potential as a small-molecule inhibitor of 11β-HSD1.
ConclusionThe resveratrol cis-dehydrodimer represents a viable candidate for further experimental validation as a therapeutic agent for metabolic disorders. Future studies should include synthetic validation and in vivo testing to confirm its efficacy.
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Polysaccharides from Sepia Esculenta Ink Promote Apoptosis via Inhibition of Autophagy in Cisplatin-exposed Triple-Negative Breast Cancer Cells
Authors: Wei Xiao, Zhen Lin, Ping Luo and Huazhong LiuAvailable online: 30 July 2025More LessIntroductionSepia Ink Polysaccharide (SIP) is a well-characterized, marine-derived glycosaminoglycan with demonstrated multifunctional properties; however, its pharmacological mechanisms remain unclear. This study aims to investigate the anti-tumor mechanism of SIP1 from Sepia esculenta ink in the treatment of triple-negative breast cancer (TNBC), with a focus on apoptosis and autophagy.
MethodsMDA-MB-231 cells exposed to cisplatin (CP) and SIP1 were assessed for apoptosis and autophagy by evaluating cell morphology, apoptosis and autophagy rates, and the expression of key genes involved in these processes using double staining, flow cytometry, and Western blotting.
ResultsThe data revealed that SIP1 induced apoptosis in TNBC cells, as demonstrated by an increased apoptosis rate, an elevated expression level of the Caspase-3 protein, a decreased expression of Bcl-2, and an elevated Bax/Bcl-2 ratio. Additionally, SIP1 did not impact autophagy. CP induced both apoptosis and autophagy of breast cancer cells. The combination of SIP1 and CP exhibited synergistic effects, enhancing apoptosis by 2.33-fold compared to SIP1 alone and 1.25-fold compared to CP alone, while simultaneously reducing autophagy levels (0.84-fold compared to CP alone), as verified by the Beclin 1 protein content.
DiscussionThis work discovered that SIP1, a sulfated glycosaminoglycan with a low content of sulfate ester groups derived from Sepia esculenta ink, induced apoptosis by inhibiting autophagy, providing a novel perspective for a deeper understanding of the anti- tumor mechanism of SIP. Currently, the underlying molecular mechanisms by which SIP1 modulates the crosstalk between apoptosis and autophagy in TNBC cells remain unknown and require further investigation.
ConclusionThis study demonstrates that SIP1 is effective in inducing apoptosis and promotes cisplatin-induced apoptosis by repressing cisplatin-induced autophagy in MDA-MB-231 cells.
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Bridging Gaps in Long COVID Therapy: A Review
Available online: 30 July 2025More LessIntroductionLong COVID-19 (LC) is a condition that follows SARS-CoV-2, an acute infection defined by persistent fatigue, dyspnea, and impaired cognitive function. LC presents a complex array that imposes ongoing challenges on global health, patients' quality of life, and functional capacity. Many inconsistencies surround its pathophysiology, diagnosis, prevention, and treatment. This review aims to cover missed gaps in LC with a special focus on therapeutic strategies concerning non-pharmacological, pharmacological, experimental, and innovative approaches for better patient management and outcomes, as well as to evaluate their effectiveness and guide future research.
MethodsAn online search was conducted using five digital repositories: PubMed, Scopus, Google Scholar, Web of Science, and the Cochrane Library. A combination of keywords associated with LC therapy was employed: “long COVID, “pharmacological options,” “non-pharmacological options,” “innovative strategies,” “experimental”, and” quality of life (QOL).” Relevant data were extracted and synthesized to categorize therapeutic approaches into subtypes. A critical analysis was conducted on their mechanism of action, indication, outcome, and limitations.
ResultsThe pooled prevalence of LC was 42%, and the symptom duration ranged from 3 months to 2 years. The most important risk factors for LC were female sex, unvaccinated status, and cases with co-morbidities. Diagnosis of LC was challenging due to a lack of diagnostic standardization and reliable biomarkers.
DiscussionNon-pharmacological strategies were employed first, showing diverse efficacies; however, the reported literature was hindered by small sampling. Pharmacological agents show promising results but need further validation. Experimental and innovative strategies need longer studies and validations.
ConclusionLC has imposed a significant burden on community health, necessitating the appropriate allocation of health resources and community support. Preventive and therapeutic interventions show promise, but the variability in patient response underscores the need for personalized approaches and more well-designed trials. Collaborative research and multi-disciplinary teams are needed to mitigate the long-term effects of LC and improve patient outcomes.
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Meta-analysis and Database Validation of Exosomal microRNAs and Prognosis in Gastric Cancer Patients
Authors: Tong Liang, Chengqing Ding, Zhong Yang and Mingxu DaAvailable online: 29 July 2025More LessBackgroundExosomal microRNAs (miRNAs) have been identified as pivotal regulators in the progression of diverse oncogenic processes. However, the relationship between exosomal miRNAs and the clinicopathological characteristics of gastric cancer (GC) patients remains a subject of debate. The present study was designed to meticulously assess the link between exosomal miRNAs and GC through a meticulous meta-analysis and rigorous database validation.
MethodsThe case-control studies about the relationship between exosomal miRNAs and GC were retrieved from CNKI, SinoMed, Embase, Web of Science, the Cochrane Library and PubMed database. The retrieval time was from inception to November, 2023. Two researchers independently screened the literature, extracted the data and evaluated the quality of the included studies. The meta-analysis of the included literature was conducted by the Stata 12.0 software. The database of Kaplan-Meier plotter predicted that the expression of miRNA was correlated with prognostic value in GC patients. The study protocol has been registered in PROSPERO (CRD42023490351).
ResultsA total of 24 studies, involving 3490 participants, were included in this analysis. The meta-analysis results indicated that there was no significant decrease in the incidence of clinicopathological parameters associated with exosomal miRNAs in GC patients. However, analysis of the Kaplan-Meier plotter database revealed that high expression levels of hsa-mir-134, hsa-mir-100, hsa-mir-552, hsa-mir-30a, and hsa-mir-23b were associated with poor prognosis in GC patients, with hazard ratios (HRs) of 1.45 (95% confidence interval [CI]: 1.06-1.99, p=0.021), 1.67 (95% CI: 1.23-2.27, p=0.00098), 1.63 (95% CI: 1.11-2.40, p=0.012), 1.56 (95% CI: 1.08-2.26, p=0.017), and 1.52 (95% CI: 1.12-2.06, p=0.0066), respectively.
ConclusionThese findings align with prior studies highlighting the role of specific miRNAs in tumor progression but diverge regarding their diagnostic utility for clinicopathological features. Future research should explore the functional mechanisms of these miRNAs in GC biology and validate their prognostic value in larger, diverse cohorts to inform personalized treatment strategies.
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Circadian Rhythm Genes-based Prognostic Signature for Bladder Cancer: Association of EZH2 Expression with Anesthetic-related Changes in Circulating Tumor Cells
Authors: Xiaojun Wan, Kunxiang Wang, Peng Ren, Xuezhou Zhang and Fa SunAvailable online: 28 July 2025More LessIntroductionCircadian rhythm genes (CRGs) play a significant role in the pathogenesis of various cancers, yet their impact on bladder cancer (BC) remains to be fully elucidated. EZH2, as a potential oncological biomarker, lacks clear delineation regarding its prognostic significance in BC. Furthermore, the effect of anesthesia on circulating tumor cells (CTCs) in cancer patients is scarcely studied.
MethodIn this study, we developed a bioinformatics signature based on CRGs to assess the prognosis of BC patients and investigated the expression of EZH2 in BC and its correlation with patient outcomes through clinical sample analysis. Furthermore, we collected blood samples from BC patients before anesthesia and two hours post-anesthesia, enriched for CTCs, and analyzed the expression of EZH2 to evaluate the impact of anesthesia on the quantity of CTCs and their EZH2 expression status.
ResultsOur prognostic model identified EZH2 as a key determinant of BC prognosis, with the high expression of EZH2 significantly associated with poor patient outcomes. Experimental validation revealed a significant increase in the number of EZH2+ CTCs after anesthesia in BC patients. These findings suggest that anesthesia may facilitate BC metastasis by increasing the number of EZH2+ CTCs.
DiscussionThe findings highlight the prognostic value of CRGs and EZH2 in BC, providing new insights into tumor biology and metastasis. Furthermore, this study suggests anesthesia may influence tumor progression by modulating EZH2 expression in CTCs, underscoring the need for careful anesthetic selection in BC patients.
ConclusionThis study unveils the potential value of CRGs and EZH2 in the prognostic assessment of BC and reports for the first time that anesthesia may influence tumor metastasis by modulating the expression of EZH2 in CTCs. These results offer new biomarkers for the prognosis and treatment of BC and provide novel insights into the role of anesthesia in cancer metastasis.
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Static Magnetic Field Accelerates Wound Healing by Activation PI3K/AKT/mTOR Signaling Pathway
Authors: Shuyan Zhong, Zan Bai, Juan Wu, Menglu Wu, Ren-Jian-Zhi Zhang, Rongguang Lai, Xinnan Zheng, Maoguo Shu and Huicong DuAvailable online: 28 July 2025More LessBackgroundWound healing is a complex and dynamic biological process involving overlapping phases such as inflammation, proliferation, and tissue remodeling. Chronic wounds, which fail to heal in a timely manner, pose significant challenges in clinical practice. Static magnetic fields (SMFs) have shown potential in wound healing, particularly in their anti-inflammatory effects and ability to promote cell proliferation. However, the precise mechanisms underlying their effects remain unclear.
ObjectiveThis study aims to investigate the effects of SMFs on wound repair and to explore the molecular mechanisms involved, particularly the role of key signaling pathways.
MethodsA rabbit ear full-thickness wound model was used to evaluate the effects of SMFs (160 mT) on wound healing. Normal human dermal fibroblasts (NHDFs), normal human epidermal keratinocytes (NHEKs), and human umbilical vein endothelial cells (HUVECs) were cultured under SMF conditions to assess their proliferation, migration, and angiogenic activity. Tissue repair, angiogenesis, and cell proliferation were analyzed through histological and immunohistochemical methods. Transcriptome sequencing and Western blotting were performed to identify key pathways affected by SMFs.
ResultsSMFs significantly accelerated wound healing in the rabbit ear model, as demonstrated by enhanced re-epithelialization, granulation tissue formation, and angiogenesis. In vitro, SMFs promoted the proliferation and migration of fibroblasts and keratinocytes, as well as tube formation in endothelial cells. Transcriptome and protein analyses revealed that SMFs activated the PI3K/AKT/mTOR signaling pathway, which played a critical role in regulating cell proliferation and angiogenesis.
ConclusionThis study demonstrates that SMFs promote wound healing by enhancing angiogenesis and cell proliferation through activation of the PI3K/AKT/mTOR signaling pathway. These findings provide a theoretical foundation for the application of SMFs as a non-invasive therapeutic approach for clinical wound management.
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NAV3 Missense Variant in a Homozygous State: Strengthening Links to Neurodevelopmental Disorder
Authors: Muhammad Umair, Anwar Ullah, Najumuddin, Gohar Zaman, Ishtiaq Ahmed, Fazl Ullah, Muhammad Bilal and Majid AlfadhelAvailable online: 24 July 2025More LessIntroductionNeurodevelopmental disorders (NDDs) represent a diverse and heterogeneous group of conditions, including global developmental delay (GDD), autism spectrum disorder (ASD), and neurodevelopmental encephalopathy with epilepsy (NDEE). While these disorders often share phenotypic similarities, their underlying genetic causes can vary widely, making clinical diagnosis challenging.
MethodsIn this study, we performed whole-genome sequencing (WGS) on a family having an autosomal recessive neurodevelopmental disorder. The proband (II-2) underwent WGS, followed by variant filtering through an in-house bioinformatics pipeline. Sanger sequencing and 3D protein modeling were performed to confirm the pathogenicity of the identified variant.
ResultsA novel biallelic missense variant in the NAV3 (c.3430T>C; p.Ser1144Pro) was detected using WGS and Sanger sequencing. Subsequently, 3D protein modeling revealed significant alterations in the secondary structure of NAV3, indicating a potential pathogenic effect.
DiscussionThe identification of a novel biallelic missense variant in NAV3 adds a new layer to our understanding of its potential contribution to autosomal recessive neurodevelopmental disorders. This case expands the mutational landscape of NAV3 and underscores its emerging significance in neurodevelopment.
ConclusionThis study reports a novel NAV3 variant in association with autosomal recessive NDD, contributing to the growing body of evidence supporting the involvement of NAV3 in human neurodevelopment. Functional validation and identification of additional patients will be essential to establish definitive genotype-phenotype correlations and uncover the mechanistic pathways underlying NAV3-associated disorders.
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Multi-omic Data Integration Reveals Drug Targets of Skin Fibrosis
Authors: Zexin Zhang, Shu Li, Xinyue Dai, Cong Li, Pengfei Sun, Jianwen Qu, Haiyue Jiang and Bo PanAvailable online: 23 July 2025More LessIntroductionScar heterogeneity, encompassing normal scar (NS) and pathological scars [hypertrophic scar (HS) and keloids], emerges from the dynamic interplay between systemic immune responses and local tissue microenvironment, highlighting the urgent need for drugs targeting different types of scars through both dimensions.
MethodsData from DECODE and EQTLGen databases were used as exposure variables at the protein and mRNA levels in the blood, and data from GTEx and ScQTLbase as exposure variables at the tissue and single-cell levels. Two sample Mendelian Randomization (MR) studies were conducted at the systemic, local, and single-cell levels. The outcome variables were based on the NS, HS, and keloid cohorts in the authoritative FinnGen database. The results were ascertained using seven MR methods, including inverse-variance weighting (IVW), Wald ratio, weighted median, weighted mode, simple median, MR-Egger, and Summary-data-based Mendelian Randomization (SMR). Single-cell RNA-seq data were leveraged to validate the expression profiles and functions of the drug targets.
ResultsNUDT2, ATXN3, OGN, UROS, and TSG101 were significantly associated with keloids, while PARK7 and MZT2A showed a significant correlation with HSs, and CDCP1 was significantly linked to NSs. Among them, RNA and protein expression levels of NUDT2 and PARK7 demonstrated significant positive associations with keloids and HSs, respectively, at the blood, skin, and single-cell levels. Functional analysis revealed that the higher expression of NUDT2 was associated with angiogenesis and the cellular response to hormone stimuli, whereas PARK7 was involved in the organization of collagen fibrils and the extracellular matrix structure. Moreover, single-cell sequencing confirmed the high expression of NUDT2 and PARK7 in keloids and HSs. These findings highlight their potential roles in both systemic and local scar pathogenesis and underscore their promise as therapeutic targets.
DiscussionThis study identifies scar subtype-specific targets, particularly NUDT2 and PARK7, expanding therapeutic candidates for scar management. Multi-ethnic cohort studies are warranted to validate target universality.
ConclusionCollectively, we have identified eight drug targets, with NUDT2 and PARK7 in particular showing potential therapeutic value for keloids and HSs. Additionally, our results suggest the feasibility of both local and systemic drug administrations.
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Integrative Profiling of the Ovarian Reserve Using Ultrasound and MRI Data by Comparative Analysis: A Systematic Review
Available online: 22 July 2025More LessBackgroundOvarian reserve reflects the functional capacity of a woman’s ovaries, encompassing factors such as follicle quantity, egg quality, and fertilization potential. Assessment of ovarian reserve is essential in reproductive medicine, particularly for fertility evaluation and assisted reproductive technologies (ART). While traditional biochemical markers such as anti-Müllerian hormone (AMH) and follicle-stimulating hormone (FSH) are commonly used, instrumental diagnostic methods like ultrasound and magnetic resonance imaging (MRI) provide valuable morphological and functional insights. This systematic review without a comprehensive meta-analysis evaluates the role of ultrasound and MRI in assessing ovarian reserve and their potential applications in clinical and research settings.
MethodsA comprehensive literature search was conducted across multiple databases to identify relevant studies evaluating ovarian reserve using ultrasound and MRI. Studies were screened based on predefined inclusion criteria, focusing on imaging parameters such as ovarian volume, follicular count, stromal characteristics, and vascularization. The effectiveness of these imaging techniques was analyzed in comparison to established biochemical markers. Due to heterogeneity in the included studies, a systematic review was performed without a formal meta-analysis.
ResultsUltrasound, particularly transvaginal ultrasound (TVUS), remains the gold standard for ovarian reserve assessment, allowing real-time visualization of antral follicle count (AFC), ovarian volume, and follicular morphology. Doppler ultrasound provides additional insights into ovarian blood flow, which correlates with follicular development and ovarian function. MRI offers high-resolution, three-dimensional imaging, enabling detailed assessment of ovarian structure, follicular density, and stromal composition. While MRI provides superior soft-tissue contrast, its role in routine ovarian reserve assessment is limited due to cost and accessibility. The findings indicate that although both modalities are valuable for ovarian reserve evaluation, there is no consensus on standardized imaging parameters for defining ovarian functional viability. The available literature also presents inconsistencies in the correlation between imaging findings and ovarian function.
ConclusionUltrasound and MRI are essential tools for assessing ovarian reserve, providing complementary morphological and functional data. However, the lack of standardized imaging parameters limits their ability to definitively determine ovarian functional viability. Further research is needed to establish validated diagnostic criteria and integrate imaging techniques with biochemical markers to enhance the accuracy of ovarian reserve assessment in clinical practice and reproductive research.
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EFHD1: A Potential Prognostic Biomarker Related to Mitochondrial Function and Aging in Atherosclerosis Plaque
Authors: Lin Wang, Yuxiu Han, Yu Qiao, Tao Yan, Zhi Qi, Wei Zhang, Ling Xin, Mingjing Yu and Zhili ChenAvailable online: 21 July 2025More LessIntroductionAtherosclerosis (AS) is prevalent among the elderly population and poses a significant global health burden. However, the precise underlying mechanisms linking aging and mitochondrial dysfunction in AS remain unclear.
MethodsThrough comprehensive utilization of databases including the Gene Expression Omnibus (GEO), MitoCarta, Molecular Signatures Database (MSigDB), and Human Aging Genomic Resources (HAGR), we employed various bioinformatics methods to explore the possible function of EF-hand domain family member D1 (EFHD1). This included the functional enrichment analysis, immune cell infiltration, and the lncRNA-miRNA-EFHD1 network. The validity of EFHD1 was confirmed using additional datasets and through Receiver Operating Characteristic (ROC) curve evaluation. Lastly, in vitro experiments were conducted using THP-1 cells treated with oxidized low-density lipoprotein (ox-LDL) to validate the expression and function of EFHD1 through Western blot and real-time quantitative PCR analyses. Additionally, in vivo experiments were performed on ApoE-/- mice exhibiting atherosclerotic phenotypes, utilizing immunofluorescence staining.
ResultsTotally seven genes associated with aging and mitochondrial function (ALDH3A2, UCP1, BCL2, EFHD1, AHCYL1, HTRA2, and ALDH9A1) were discovered in AS, with EFHD1 identified as the principal hub gene. Immune infiltration analysis indicated that EFHD1 was negatively associated with myeloid suppressor cells (MDSC), activated B cells, and natural killer cells. An evident decline in EFHD1 was noted in unstable or advanced plaques compared to stable or early plaques, accompanied by significant area under the ROC curve (AUC) values of 0.917 (GSE100927) and 0.933 (GSE41571). Moreover, we recorded a reduction in EFHD1 expression in AS tissues and macrophages treated with ox-LDL. Following the silencing of EFHD1, TNF-α and IL-1β decreased, while ALODA, PKM2, MMP-9, JAK2, and STAT3 levels were upregulated. Furthermore, levels of ATP and reactive oxygen species (ROS) were diminished, while calcium ions and mitochondria levels remained unchanged.
DiscussionTo date, the common pathogenic genes associated with aging and mitochondrial dysfunction in atherosclerotic disease have been scarcely investigated. Using bioinformatics approaches, we identified seven hub genes (ALDH3A2, UCP1, BCL2, EFHD1, AHCYL1, HTRA2, and ALDH9A1) related to mitochondrial function and aging. Among these, EFHD1 was determined as the final hub gene. As a calcium sensor, EFHD1 plays a pivotal role in regulating mitochondrial metabolism and has been implicated in the prognosis of various tumors. Our findings demonstrated that EFHD1 knockdown decreased the levels of pro-inflammatory cytokines, such as IL-1β and TNF-α, increased JAK2 and STAT3 protein levels, and elevated MMP-9 levels, all of which may contribute to the vulnerability and progression of atherosclerotic plaques.
ConclusionOur research revealed a reduction in EFHD1 expression within atherosclerotic tissues, suggesting its potential role in inflammation and mitochondrial energy metabolism as a key regulator of the calcium signaling pathway. This discovery offers possible advancements in the early diagnosis and treatment strategies for AS.
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Transfer Learning for Automated Two-class Classification of Pulmonary Tuberculosis in Chest X-Ray Images
Authors: Akansha Nayyar, Rahul Shrivastava and Shruti JainAvailable online: 21 July 2025More LessAimEarly and precise diagnosis is essential for effectively treating and managing pulmonary tuberculosis. The purpose of this research is to leverage artificial intelligence (AI), specifically convolutional neural networks (CNNs), to expedite the diagnosis of tuberculosis (TB) using chest X-ray (CXR) images.
BackgroundMycobacterium tuberculosis, an aerobic bacterium, is the causative agent of TB. The disease remains a global health challenge, particularly in densely populated countries. Early detection via chest X-rays is crucial, but limited medical expertise hampers timely diagnosis.
ObjectiveThis study explores the application of CNNs, a highly efficient method, for automated TB detection, especially in areas with limited medical expertise.
MethodsPreviously trained models, specifically VGG-16, VGG-19, ResNet 50, and Inception v3, were used to validate the data. Effective feature extraction and classification in medical image analysis, especially in TB diagnosis, is facilitated by the distinct design and capabilities that each model offers. VGG-16 and VGG-19 are very good at identifying minute distinctions and hierarchical characteristics from CXR images; on the other hand, ResNet 50 avoids overfitting while retaining both low and high-level features. The inception v3 model is quite useful for examining various complex patterns in a CXR image with its capacity to extract multi-scale features.
ResultsInception v3 outperformed other models, attaining 97.60% accuracy without pre-processing and 98.78% with pre-processing.
ConclusionThe proposed model shows promising results as a tool for improving TB diagnosis, and reducing the global impact of the disease, but further validation with larger and more diverse datasets is needed.
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Machine Learning, Virtual Screening and Bioactivity Evaluation to Identify AJ-292/12941271 as an Anti-proliferative Agent and Target mTOR Protein
Authors: Min Li, Yang Yang, Ran Wang, Wufu Zhu, Yuanbiao Tu, Pengwu Zheng and LinXiao WangAvailable online: 18 July 2025More LessObjectivesThe objective of this study is to obtain inhibitors against mTOR targets with virtual screening, dynamic simulation and bioactivity assessment. This pursuit aims to obtain a rapid and accurate method for the discovery of new mTOR inhibitors.
MethodsFirstly, the researchers obtained nearly 9000 compounds by using ROC-guided machine learning from a library of over 200000 compounds. Secondly, virtual screening was used to evaluate the affinity of 45 compounds. Further analysis was performed to identify 6 hit compounds. Simultaneously, MTT antitumor activity evaluation and kinase inhibition assays are conducted for the active compounds to discern the most promising candidates. Furthermore, AO staining and JC-1 assays are performed for the selected compounds. Simultaneously, MTT antitumor activity evaluation and kinase inhibition assays are conducted for the active compounds to discern the most promising candidates. Furthermore, AO staining, JC-1 and hemolytic toxicity evaluation assays are performed for the selected compounds.
ResultsThe kinase assay demonstrates that these 6 compounds display greater sensitivity to mTOR than to PI3K. Among them, compounds AJ-292/12941271 and AG-205/12550019 show better activity against mTOR target than PI3K, with an IC50 of 2.55 and 4.48 μM, respectively. Additionally, the anti-proliferative activity of the six hit compounds was also considered. Compound AJ-292/12941271 shows the best anticancer activity against A549 cell lines with an IC50 value of 4.3 μM. Further analysis reveals that compound AJ-292/12941271 induces apoptosis in the A549 cell line in a concentration-dependent or time-dependent manner. Hemolytic toxicity evaluation suggests that the compound AJ-292/12941271 is safe for further in vivo study.
ConclusionThis research proposes that the fused method of ROC-based machine learning, virtual screening, and bioactivity evaluation could be used to discover novel mTOR inhibitors quickly and precisely.
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Exploring the Role of Cuproptosis-related Genes in Acute Myeloid Leukemia Through WGCNA, Single-cell Sequencing and Experiments
Authors: Leping Liu, Haixia Zhang, Phoebe Abonyo Ouru, Pan Chen and Minghua YangAvailable online: 15 July 2025More LessBackgroundCuproptosis, a newly discovered form of programmed cell death, has potential implications for tumorigenesis and cancer progression. This study investigates the role of cuproptosis in Acute Myeloid Leukemia (AML) and identifies associated biomarkers using bulk and single-cell RNA sequencing. Despite recent advances, the mechanisms of cuproptosis in AML remain unclear, and its relationship with immune cell infiltration could reveal novel therapeutic targets.
MethodsRNA-seq data from 151 AML patients and 70 healthy controls were obtained from TCGA and GTEx databases, and single-cell RNA-seq data from 16 AML patients (GEO) were used for validation. Differential expression of Cuproptosis-Related Genes (CRGs) was analyzed via RCircos and correlation analysis. Immune cell infiltration was assessed using CIBERSORT and ssGSEA. WGCNA identified key genes for AML and cuproptosis subtypes, which were validated with single-cell data. Intercellular communication was analyzed through ligand-receptor interactions. RNA interference experiments validated TLR4 and NCF2, with gene expression measured through RT-qPCR. Apoptosis and CCK-8 assays assessed cell viability.
ResultsWe identified 19 CRGs with differential expression between AML subtypes linked to immune cell infiltration. Subtype analysis classified AML patients into C1 and C2 subgroups enriched in biosynthesis and metabolism pathways. WGCNA identified 2701 genes associated with AML and 92 with cuproptosis, leading to 15 intersecting genes. RETN was highlighted as key in intercellular communication. Experimental validation showed that elesclomol-induced cell death in THP-1 cells is reversible by TTM. Knockout of TLR4 and NCF2 promoted cuproptosis.
ConclusionThese findings offer new insights into the role of cuproptosis in AML, highlighting novel biomarkers, such as TLR4 and NCF2, which may provide promising targets for the development of future therapeutic strategies in AML treatment.
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Targeted Protein Degradation in Lung Cancer: The Emerging Role of PROTAC Technology and E3 Ligases
Available online: 15 July 2025More LessLung cancer remains one of the most prevalent and lethal malignancies, with poor drug response and high mortality rates. Proteolysis-targeting chimeras (PROTACs) are emerging as a novel therapeutic strategy, leveraging E3 ligases to degrade oncogenic proteins selectively via the ubiquitin-proteasome pathway. These degraders offer higher selectivity and bioavailability compared to traditional inhibitors. This review explores how PROTACs eliminate oncogenic proteins in lung cancer and examines the role of E3 ligases in this process. Commonly utilized ligases include Cereblon (CRBN) and Von Hippel-Lindau (VHL), while newer ones, such as MDM2 and Kelch-like ECH-associated protein 1 (KEAP1), are being investigated for therapeutic potential. We discuss key factors in PROTAC design, including ligand selection, linker optimization, and pharmacokinetic properties, which influence tumor specificity and efficacy while minimizing off-target effects. Additionally, we highlight targetable oncogenic drivers in lung cancer, such as KRAS, EGFR, and ALK fusion proteins, and evaluate preclinical and clinical studies that demonstrate PROTACs' potential for overcoming drug resistance. The challenges associated with clinical translation, tumor microenvironment interactions, and E3 ligase selection are also discussed. Finally, we present future perspectives, including expanding the range of E3 ligases, developing multitargeting strategies, and integrating next-generation molecular glue degraders. By offering a comparative analysis of E3 ligase-specific PROTACs, this review underscores the potential of PROTAC technology to advance precision oncology in lung cancer.
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Integrating Microarray Analysis, Machine Learning, and Molecular Docking to Explore the Mechanism of Doxorubicin-induced Cardiotoxicity
Authors: Yidong Zhu, Jun He and Rong WeiAvailable online: 15 July 2025More LessIntroductionDoxorubicin (DOX) is a chemotherapeutic agent widely used for the treatment of various cancers; however, its clinical use is limited by its cardiotoxicity. However, the underlying molecular mechanisms remain poorly understood, hindering the development of effective preventive and treatment strategies. This study aimed to identify core target genes and explore the mechanisms involved in DOX-induced cardiotoxicity by integrating microarray analysis, machine learning, and molecular docking.
Materials and MethodsDifferential expression analysis was performed using microarray data from DOX-induced cardiotoxic samples and healthy controls. Multiple machine learning algorithms were applied to identify core target genes. The predictive performance of these genes was evaluated using receiver operating characteristic (ROC) curves. Molecular docking was conducted to evaluate the binding affinity of DOX to the target genes. Functional analysis was performed to investigate potential toxic mechanisms.
ResultsIn total, 276 differentially expressed genes were identified between DOX-induced cardiotoxicity samples and controls. The support vector machine algorithm demonstrated the best performance, leading to the identification of five core target genes: RAP1A, CTLA4, OR2M1P, TRIM53, and LOC149837. The ROC curves confirmed the strong predictive power of these genes, with area under the curve values greater than 0.85. Molecular docking showed stable binding between DOX and the target genes. Functional analysis suggested that the Rap1 signaling pathway and immune system regulation may be involved in DOX-induced cardiotoxicity.
DiscussionTraditional toxicological studies often rely on limited experimental approaches that do not fully capture the complexity of disease mechanisms. The integration of microarray analysis, machine learning, and molecular docking in this study offers a comprehensive framework for investigating the toxicological pathways of DOX-induced cardiotoxicity, thereby providing insights into therapeutic development and safety regulations.
ConclusionBy combining microarray analysis, machine learning, and molecular docking, we identified five key target genes associated with DOX-induced cardiotoxicity. Functional analysis further suggested the involvement of the Rap1 signaling pathway and immune system regulation in DOX-induced cardiotoxicity. These findings offer insights into the molecular mechanisms underlying DOX-induced cardiotoxicity and have implications for the development of protective strategies and therapeutic interventions.
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Designing of Peptide Vaccine by Investigating Monkeypox Virus Membrane Glycoprotein: An Integrated In Silico and Immunoinformatics Approach
Available online: 09 July 2025More LessBackgroundIn 2022, the World Health Organisation (WHO) announced new cases of the developing Monkeypox Virus (MPXV), a zoonotic orthopoxvirus viral infection that mimics smallpox signs. Despite the ongoing infection, no proper medication is available to completely overcome this infection.
AimThe study aims to construct a multi-epitope vaccine targeting Monkeypox Virus (MPXV) membrane glycoprotein to provoke robust immune responses.
ObjectiveTo construct a potential immuno-dominant epitope vaccine to combat MPXV.
MethodsThe target sequence, sourced from the UAE-to-India travel case, was analyzed to identify potential B-cell and T-cell epitopes (MHC-I and MHC-II). Immunodominant epitopes were selected and fused with β-defensin-I and PADRE to increase immunogenicity. The vaccine was modeled, docked with TLR3, and subjected to a 500 ns molecular dynamics simulation for stability analysis. Immune responses and bacterial expression were also evaluated.
ResultsThe vaccine, comprising 230 amino acids, demonstrated antigenicity (0.6620), non-allergenicity, and broad population coverage. Selected epitopes included 3 B-cells, 4 MHC-I, and 2 MHC-II, ensuring a potent immunodominant profile. Docking with TLR3 revealed a binding affinity of -17.2 kcal/mol, while simulations confirmed their stability. Cloning (pET28a (+)) and immune response analyses showed a strong immunogenic profile, including elevated IgG1, IgM, and antigen levels, supported by a Codon Adaptation Index (CAI) of 1.0.
ConclusionThe proposed multi-epitope vaccine shows promise against MPXV. However, further in vivo and in vitro investigations are essential to confirm its immune efficacy.
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Development and Validation of a Prognostic Signature Based on Transcription Factors Associated with Endoplasmic Reticulum Stress in Pancreatic Adenocarcinoma
Authors: Shan Gao, Zhenchu Tang and Yuqian ZhouAvailable online: 08 July 2025More LessBackgroundEndoplasmic reticulum stress (ER stress) plays a crucial role in influencing the malignant behaviors of various tumors. Targeting the expression or degradation of transcription factors (TFs) offers a promising avenue for cancer treatment. However, a detailed understanding of how ER stress affects TF function and their interactions remains limited. This study aims to develop a prognostic model and identify TFs associated with ER stress in pancreatic ductal adenocarcinoma (PDAC).
MethodsWe obtained gene expression profiles and corresponding clinical data from The Cancer Genome Atlas (TCGA). To develop a prognostic signature, we performed several analyses, including unsupervised clustering, enrichment analysis, immune infiltration assessment, as well as univariate, LASSO, and multivariate Cox regression analyses. Four transcription factors—STAT1, IRF6, NRF1, and RXRA—were incorporated into a risk model, which was subsequently validated using the GSE dataset. Additionally, we examined IRF6 through quantitative PCR, western blotting, flow cytometry, and immunohistochemistry in vitro using pancreatic cancer cell lines and a tissue microarray.
ResultsThe high-risk group identified by the model exhibited significant associations with immune cell infiltration and poorer survival outcomes, though there was no significant correlation with tumor purity (p = 0.19). Furthermore, IRF6 downregulation in vitro was found to inhibit pancreatic cancer cell proliferation and promote apoptosis. IRF6 depletion also increased the expression of key molecules involved in ER stress at both the transcriptional and translational levels. Immunohistochemical analysis revealed marked differences in IRF6 expression between tumor and adjacent non-tumor tissues (59.29±29.88 vs. 95.22±40.80, p<0.001).
ConclusionThis study provides evidence that the constructed risk model can effectively predict prognosis in PDAC patients. Transcription factors related to ER stress, such as IRF6, show promise as both prognostic biomarkers and potential therapeutic targets for PDAC.
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Highly Efficient and Eco-friendly Synthesis and Bio-activities of 1,3-benzazoles as Cu (II) Chelators in Alzheimer’s Disease Therapy
Available online: 08 July 2025More LessIntroductionDyshomeostasis of Cu2+ and abnormal interactions between Cu2+ and β Amyloid peptide (Aβ) can promote Aβ aggregation and oxidative stress, which are considered to trigger Alzheimer’s Disease (AD). Metal chelating therapy is a promising approach for the treatment of AD.
MethodsIn this study, 2-(2-hydroxyphenyl)benzazoles were synthesized via microwave irradiation promotion. Chelators inhibiting Cu2+-induced Aβ aggregation were determined through turbidity assay and BCA protein assay, while anti-oxidants were detected via HRP/Amplex red assay and fluorescent probe of DCFH-DA. Cell viability was measured by MTT assay.
ResultsThe bio-activity for inhibiting Cu2+ induced-Aβ aggregation of chelators S-1, S-3, S-4, S-5, S-7, S-10, N-5, N-9, N-10 O-2, O-4, X-N-2 was better than that of CQ. The ability of the chelators (S-1, S-10, O-2, O-5, N-9, and X-N-2) to decrease the level of ROS in Aβ+Cu2+ treated SH-SY5Y cells was better than that of CQ. The ability to attenuate Aβ-mediated cytotoxicity in SH-SY5Y cells of S-10 (O-2, O-5, and N-9) was better than that of CQ.
ConclusionAfter the evolution of the bio-activities for the treatment of AD in vitro, it was found that 4 chelators (S-10, O-2, O-5, and N-9) exhibited better bio-activities than CQ in all aspects.
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Comparison of the Safety and Efficacy of Ciprofol Versus Propofol for Induction and Maintenance of General Anesthesia in Patients Under-going Thoracoscopic Surgery: A Prospective Randomized Controlled Trial
Authors: Ying Wang, Baoling Zhao, Yiming Lin, Can Zhang, Huidan Zhou and Kangjie XieAvailable online: 07 July 2025More LessObjectiveCiprofol is a novel sedative-anesthetic that functions similarly to propofol. This study aimed to evaluate the efficacy and safety of ciprofol for the induction and maintenance of general anesthesia in patients undergoing thoracoscopic surgery.
MethodsA total of 120 patients undergoing thoracoscopic surgery for pulmonary nodules under general anesthesia were randomly assigned to the ciprofol group or the propofol group. Patients in the ciprofol group received an initial dose of 0.4 mg.kg-1 of ciprofol for anesthesia induction, followed by an infusion rate ranging from 0.4 mg.kg-1.h-1 to 2.4 mg.kg-1.h-1 for maintenance. In the propofol group, patients were administered an initial dose of 2.0 mg.kg-1 of propofol for induction, with a maintenance infusion rate ranging from 4.0 mg.kg-1.h-1 to 12 mg.kg-1h-1. The primary outcome measured was the success rate of sedation. Secondary outcomes included the time to successful induction of anesthesia, changes in hemodynamics and bispectral index (BIS) within 10 minutes after the initial administration of the study medication, time to respiratory recovery and full alertness, and the incidence of adverse events.
ResultsThe sedation success rate was 100% in both groups. In this study, statistical analyses revealed no significant differences in the time to eyelash reflex disappearance (p=0.599), induction success time (p=0.431), the moment when the BIS value first fell below 60 (p=0.538), the time to respiratory recovery (p=0.505), or the interval until full wakefulness (p=0.837). Notably, within the first 10 minutes following the initial administration of the study medication, the reduction in blood pressure was significantly more pronounced in the propofol group (p<0.05). Additionally, the mean BIS value was significantly higher in the propofol group (p<0.01). The required dosage of sedative medication was significantly lower in the ciprofol group (p<0.001). Compared to the propofol group, the ciprofol group exhibited a significant reduction in the incidence of adverse events during intubation (p=0.01), a marked decrease in injection pain (p=0.001), and a significant decrease in the incidence of intraoperative hypotension (p<0.05).
ConclusionCiprofol exhibits comparable efficacy and safety profiles for both the induction and maintenance of general anesthesia in patients undergoing thoracoscopic surgery. Furthermore, it has been associated with a reduced dosage requirement, significantly lower mean BIS values, and a notable decrease in the incidence of injection pain and intraoperative hypotension.
Trial Registreation No(ChiCTR2400086976).
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Integration of Single-cell Sequencing Analysis Reveals Disulfidptosis Related Molecular Subtype and Novel Prognosis System for Osteosarcoma
Authors: Houxi Li, Tian Deng, Mingyue Yan, Ronghuan Wang, Xiao Ma, Xiangyu Zong, Tianrui Wang, Feng Li and Xiaolin WuAvailable online: 07 July 2025More LessBackgroundOsteosarcoma (OS) is one of the most common primary malignancies in children and adolescents. Disulfidptosis, a newly identified form of metabolically induced programmed cell death triggered by disulfide stress, has not yet been explored in OS.
MethodsWe integrated data from public databases and applied a series of bioinformatics approaches, including clustering analysis to classify OS subtypes, and Cox and LASSO regression analysis to identify prognostic disulfidptosis-related genes (DRGs). Enrichment analysis was performed to explore the biological pathways associated with DRG-related molecular subtypes. The immune infiltration landscape was assessed to understand the tumor microenvironment in different risk subgroups. Additionally, drug sensitivity analysis was conducted to evaluate the potential clinical therapeutic strategies of the identified DRG score subgroups. The distribution of DRG expression across OS cell subtypes was further analyzed using single-cell RNA sequencing. In vitro assays, including Western blotting, qRT-PCR, and cell migration and invasion assays, were conducted to validate POLR1D expression and function in OS cells.
ResultsWe established a DRG-based prognostic model that effectively stratifies OS patients into distinct risk groups with different survival outcomes. The model also revealed significant differences in immune cell infiltration between high and low DRG scores group, suggesting a link between disulfidptosis and the OS immune microenvironment. Drug sensitivity analysis indicated that the DRG signature could guide personalized therapeutic strategies. Single-cell RNA sequencing revealed heterogeneous expression of DRG signature across OS cell subtypes. Functional assays confirmed that POLR1D was aberrantly overexpressed in OS cells and promotes their migration and invasion, supporting its role as a potential oncogenic driver in OS.
ConclusionOur study is the first to investigate the role of DRGs for risk stratification in OS, providing new insights and targets into OS pathogenesis.
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Network Pharmacology and Validation Experiments Reveal Cryptotanshinone Inhibits Acute Myeloid Leukemia Progression by Activating Endoplasmic Reticulum Stress
Authors: Jie Wei, Xiang You Yao, Yan Huang, Guan-ye Nai and Rong-rong LiuAvailable online: 01 July 2025More LessBackgroundAcute myeloid leukemia (AML) is the most common adult hematologic malignancy, with relapse and drug resistance posing major challenges despite treatment advances. Cryptotanshinone (CTS), a diterpenoid compound derived from Salvia miltiorrhiza, exhibits anticancer activity in various tumors. However, its role and mechanisms in AML remain unclear. This study aims to investigate the inhibitory effects of CTS on AML cells and its potential mechanisms.
MethodsNetwork pharmacology was employed to identify potential AML-related targets of CTS, and a disease-drug-target interaction network was constructed. The effects of CTS on KG-1 cells were assessed using CCK-8 proliferation assays, cell cycle analysis and apoptosis detection. Western blot and quantitative real-time polymerase chain reaction (qRT-PCR) were performed to analyze the regulatory effects of CTS on the endoplasmic reticulum stress (ERS) signaling pathway. The role of the Hippo-YAP signaling pathway in CTS-induced AML inhibition was further explored.
ResultsNetwork pharmacology analysis identified key AML-related targets of CTS, enriched in multiple cancer-related signaling pathways. Experimental results showed that CTS inhibited KG-1 cell proliferation in a dose-dependent manner, induced S-phase arrest, and promoted apoptosis. Furthermore, CTS treatment significantly upregulated ERS-related key proteins. While YAP overexpression attenuated CTS-induced ERS activation and reduced apoptosis levels.
ConclusionThis study indicates that CTS inhibits AML cell proliferation and induces apoptosis while activating the ERS signaling pathway. However, aberrant activation of the Hippo-YAP pathway weakens this effect. These findings provide novel theoretical insights into potential therapeutic strategies for AML.
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Structural Model of the Oncostatin M (OSM)-OSMRβ-gp130 Ternary Complex Reveals Pathways of Allosteric Communication in OSM Signaling
Authors: Qingqing Du, Ding Luo, Weiwei Xue and Yan QianAvailable online: 01 July 2025More LessIntroductionHuman oncostatin M (OSM) is a pleiotropic cytokine that regulates inflammatory and immune responses by binding to the heterodimer receptor complex OSM receptor beta (OSMRβ) and glycoprotein 130 (gp130). The distinct signaling pathways triggered by OSM are involved in multiple chronic inflammatory conditions, such as inflammatory bowel disease (IBD), rheumatoid arthritis (RA), and cancers, making the OSM-bound receptor complex a significant therapeutic target. Currently, no 3D structure of human OSM recognition complex is available, and thus, the molecular mechanisms underlying OSM signaling remain poorly understood.
MethodsIn this study, for the first time, we proposed a full-length structural model of the human OSM-OSMRβ-gp130, generated using AlphaFold2 protein structure prediction and all-atom molecular dynamics (MD) simulation (~ 1.12 million atoms with explicit solvent), enabling investigation of the geometric and dynamic profiles of OSM-OSMRβ-gp130 structure at atomic-level.
ResultsAnalysis of the simulation trajectory demonstrated that the structural rearrangements of the heterodimer receptors (i.e., OSMRβ and gp130) initiated by OSM binding mediated the signal transduction from the extracellular to the intracellular domains. In the representative conformation identified through clustering analysis, two main allosteric pathways contributed were found to mediate signal transduction from the allosteric region of OSM to the active sites of OSMRβ and gp130. Finally, two druggable binding sites located on OSM and gp130 were detected by dynamically monitoring pocket flexibility throughout the simulation. A comprehensive analysis of the OSM-OSMRβ-gp130 model was carried out with respect to OSM signaling.
ConclusionThe findings of this study not only enhance the mechanistic understanding of OSM binding to the heteromeric OSMRβ/gp130 but also identify druggable binding sites for structure-based design of small molecules to inhibit the intracellular signal transduction.
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Exploring the Role of tRNA-Derived Fragments in Pterygium: Molecular Insights into tsRNA-Mediated Fibroblast Regulation and Disease Progression
Authors: Qiaodan Yang, Xinyu Tang, Ruiying Zhang, Yulian Dou, Ming Yan and Fang ZhengAvailable online: 26 June 2025More LessBackgroundPterygium is a common ocular surface disorder characterized by fibrovascular overgrowth, with recurrence remaining a major clinical challenge. While non-coding RNAs have been implicated in pterygium pathogenesis, the role of tRNA-derived small RNAs (tsRNAs) remains unexplored.
MethodsWe performed small RNA sequencing on pterygium and adjacent normal conjunctiva tissues to profile tsRNA expression. Differentially expressed tsRNAs were validated using qRT-PCR, and their biological functions were investigated via cell proliferation and wound healing assays in human pterygium fibroblasts (HPF). Potential target genes and enriched pathways were analyzed using bioinformatics approaches, including KEGG and GO enrichment analysis.
ResultsWe identified significantly dysregulated tsRNAs in pterygium, with tRF-1_30-His- GTG-1, tRF-1_31-Val-CAC-2, tRF-1_31-Gly-GCC-1, and tRF-1_30-Gly-CCC-1-M4 exhibiting notable upregulation. Functional assays demonstrated that tRF-1_30-His- GTG-1 promotes fibroblast proliferation and migration, while the other three tsRNAs enhance fibroblast migration. Pathway enrichment analysis revealed their involvement in cellular proliferation, extracellular matrix remodeling, and angiogenesis.
ConclusionThis study provides the first evidence of tsRNA involvement in pterygium pathogenesis, highlighting their potential as biomarkers and therapeutic targets. Future studies should focus on deciphering their precise regulatory mechanisms and developing RNA-based therapeutic strategies to mitigate disease progression.
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Quinoline Heterocyclic Clubbed Hydrazone Derivatives as Potential Inhibitors of Mutant S. aureus DNA Gyrase A; An In-silico Drug Discovery Approach -Molecular Docking, MD Simulation, DFT Analysis and ADMET Predictions
Authors: Sangeeta Verma, Sukhbir Lal, Rakesh Narang, Somdutt Mujwar and Tanuj HoodaAvailable online: 25 June 2025More LessBackgroundStaphylococcus aureus infections have become a significant public health issue due to increasing the resistance against known antibiotics, especially by Methicillin-Resistant Staphylococcus aureus (MRSA). Fluoroquinolones are broad-spectrum class of antibiotics mostly utilized in treating various bacterial infections and those caused by S. aureus. Reported data indicated that mutations of Ser84 to Leu, Ser85 to Pro and Glu88 to Lys in DNA gyrase A enzyme are the major cause of fluoroquinolone resistance against S. aureus. Therefore, the development of a novel targeted molecule with potential activity against mutant S. aureus is essential. The antibacterial activity of quinoline-clubbed hydrazone derivatives against S. aureus is noteworthy. However, the mechanism of action of quinoline hydrazone derivatives has not been reported by inhibiting these common mutations of DNA gyrase A.
MethodsIn this concern, some quinoline hydrazone derivatives as antibacterial agents reported by several research groups have been further studied as mutated S. aureus DNA gyrase A (Pdb id: 8bp2) inhibitors using in-silico techniques viz., molecular docking, MD simulation, DFT analysis, and ADMET predictions.
ResultsAmong the studied compounds, 42, 43, 48 and 49 were found to be the most active and showed the highest docking score (-7.71 to -9.29 kcalmol-1) by interaction with mutant (Leu84 and Pro85) S. aureus DNA gyrase A. Further, MD simulation results indicated that these compounds exhibited good stability with the targeted macromolecule under dynamic conditions. The most active compound 49 (ʌE = 0.159 eV) attributed to its lower HOMO-LUMO gap, which was an indicator of a potential inhibitor of fluoroquinolone- resistant S. aureus DNA gyrase A enzyme. ADMET prediction study emphasized that both compounds showed a significant safety profile.
ConclusionThe future perspective emphasized that compounds 42, 43, 48 and 49 could be developed as novel inhibitors against fluoroquinolone-resistant DNA gyrase A enzyme on the completion of drug discovery approaches.
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Discovery of Putative GyrB Inhibitors against Mycobacterium tuberculosis: A Combined Virtual Screening and Experimental Study
Available online: 25 June 2025More LessIntroductionWith the rapid emergence of drug-resistant strains of tuberculosis, resistance to current first-line and second-line anti-tuberculosis drugs is becoming increasingly prevalent. Consequently, the discovery of new lead compounds is essential to address this challenge. GyrB has emerged as a promising target for tuberculosis treatment due to its pivotal role in DNA replication and topology regulation in Mycobacterium tuberculosis.
MethodsIn this study, a multi-conformational virtual screening approach, complemented by antibacterial activity assays, was utilized to identify novel GyrB inhibitors from the ChemDiv database.
ResultsAmong the 27 compounds purchased, 10 exhibited significant inhibitory effects against the H37Rv strain, with 8 featuring novel core scaffolds. Notably, three compounds (V027-7669, V017-8710, and 5132-0213) demonstrated a minimum inhibitory concentration (MIC) of 8 μg/mL. Compounds V027-7669 and V017-8710, in particular, showed antibacterial activity against a multidrug-resistant tuberculosis strain, with MIC values of 32 μg/mL and 16 μg/mL, respectively. Molecular dynamics simulations revealed that both V027-7669 and V017-8710 bind stably to GyrB, which are primarily driven by nonpolar interactions. Furthermore, both of them occupy a novel sub-pocket formed by residues Val99, Gly106, Val123, Gly124, and Val125, where they establish hydrogen bonds with Val125.
ConclusionOur study underscores the effectiveness of a multi-conformational virtual screening strategy in identifying novel GyrB inhibitors and suggests V027-7669 and V017-8710 as promising lead compounds for the development of treatments against multidrug-resistant tuberculosis.
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A Ubiquitination-Related Gene Prognostic Signature and the Oncogenic Role of RNF149 in Nasopharyngeal Carcinoma: scRNA- seq-Based Bioinformatics and Experimental Validation
Authors: Haiyan Deng, Juan Zhang, Shuaijun Chen, Tingfeng Liang, Xueyong Hu, Jing Li, Yong He, Feng Yu and Chaosheng YuAvailable online: 25 June 2025More LessIntroductionNasopharyngeal carcinoma (NPC) is an aggressive malignancy with a poor prognosis. Ubiquitination is a complex post translational modification involved in cancer progression. However, ubiquitination related genes (URGs) in immunotherapy of NPC remains largely unexplored.
MethodsDifferentially expressed URGs were screened based on the single-cell RNA sequencing (scRNA-seq) dataset and a risk model of NPC was constructed and evaluated for prognostic significance. The oncogenic role of RNF149 in NPC was investigated through in vitro and in vivo experiments, including tumor cells, NPC-like organoids, and tumor-bearing mice.
ResultsscRNA-seq data showed that URGs scores were higher in cancer cells than in normal epithelial cells. We identified 216 differentially expressed URGs between cancer and normal epithelial cells, but only 33 differentially expressed URGs associated with prognosis. Based on 33 URGs, TCGA-HNSC samples were classified into two distinct subtypes with significant differences in the tumor immune microenvironment, immunotherapy effect, and survival-prognostic genes. Using LASSO algorithm, 13 URGs were selected to construct a risk model, which demonstrated high predictive performance. The expression profiles of these 13 URGs were analyzed in TCGA-HNSC tumor and adjacent non-cancerous samples, and six URGs (BSPRY, OTUB1, PJA1, RNF149, RNF181, USP10) exhibited consistent expression trends. Moreover, quantitative real- time PCR revealed that RNF149 was up-regulated expression in NPC cells compared to the NP69 cells. RNF149 knockdown significantly impeded the proliferative, migratory, and invasive capabilities and exaggerated apoptosis of NPC cells. RNF149 knockdown cells exhibited a reduced capacity to form NPC organoids in a 3D culture system. shRNA-RNF149 diminished subcutaneous tumorigenic capacity of HK-1 cells compared to the control group.
DiscussionThe URGs-based prognostic risk model offers a robust tool for predicting immunotherapy efficacy in NPC and RNF149 promotes NPC progression.
ConclusionA URGs-related prognostic risk model capable of predicting clinical outcomes in NPC patients and RNF149 promotes NPC progression. Our findings are expected to provide new strategies to improve outcomes for NPC patients.
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Synthesis of (E)-3-(aryl)-1-phenylprop-2-en-1-one Chalcone Derivatives for Hyperglycemic Effect in Diabetes: In-vitro, In-vivo and In-silico Approach
Available online: 24 June 2025More LessBackgroundDiabetes mellitus (DM) is a chronic metabolic disorder that seeks treatment instead of available mitigative therapy.
MethodsSix (E)-3-(aryl)-1-phenylprop-2-en-1-one chalcones were synthesized and characterized through various spectroscopic techniques. Their anti-diabetic potential was examined through in-vitro (α-glucosidase and α-amylase inhibition assays), in-vivo (alloxan-induced hyperglycemia), and in-silico studies.
ResultsAll the chalcones derivatives significantly inhibited α-glucosidase and α-amylase. Compounds 11 (IC50 = 1.10 ± 0.02) and 13 (IC50 = 3.25 ± 0.10 µM) exhibited the most potent activity against α-glucosidase. The effect of compounds 11 and 13 was also significant against α-amylase with IC50 of 13.2 ± 0.50 and 10.2 ± 0.4 µM, respectively. In alloxan-induced hyperglycemic model, a significant (p<0.001) reduction in blood glucose level (BGL) was observed by compounds 10, 11 and 14 with maximum percent inhibition of 47.48, 47.22 and 47.55, respectively. In the oral glucose tolerance test, a continuous reduction in BGL was noted at 60 minutes. No negative effect was seen on lipid profile, and in liver and renal function tests. However, a slight gain in body weight was noted. Moreover, docking result indicates good interaction of these molecules with the target enzymes, α-glucosidase and α-amylase.
ConclusionThese results demonstrate that all these molecules have significant anti-diabetic potential.
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Measuring Health-related Quality of Life in Pediatric Patients with Ultra-rare Diseases: A Multicenter Study
Available online: 23 June 2025More LessBackgroundUltra-rare diseases (URDs) are defined based on point prevalence and are classified as conditions affecting fewer than 1 in 50,000 individuals, and they are more likely to exist among communities with higher consanguinity rates requiring evidence-based data.
MethodsIn this multi-center study, we used next-generation sequencing to identify 30 pediatric patients with URDs. Along with the demographic information about their parents, clinical, laboratory, and radiological data was also obtained. Multinomial regression was carried out to assess statistical differences and determine associations using the Quality of Life of Childhood Epilepsy (QOLCE)-55 scale.
ResultsThere were 19 male (63.33%) and 11 (36.67%) female patients. Their current age range was 2-15 years (mean=8.83 years). The majority were diagnosed with sodium channelopathy (64.51%). The average Quality of Life (QoL) score of all participants was 51.43 ± 9.01 (reference range 0-100) with quartiles Q1=40, Q2=43.5, and Q3=56.
ConclusionWe propose that URDs complicated by epilepsy can significantly impair the QoL of patients and their families.
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Investigating the Biomarkers for Alzheimer's Disease: Insights from Microarray Analysis, Mendelian Randomization, and Experimental Validation
Authors: Yidong Zhu, Xiaoyi Jin and Jun LiuAvailable online: 23 June 2025More LessBackgroundAlzheimer's disease (AD) is the most common cause of dementia worldwide, with a steadily increasing prevalence. However, the mechanisms underlying AD remain unclear, and current treatments have only limited efficacy.
ObjectiveThis study aimed to identify potential biomarker genes for AD and to explore the underlying mechanisms by integrating microarray analysis, Mendelian randomization (MR), and experimental validation.
MethodsAD-related microarray datasets were downloaded from the Gene Expression Omnibus database. Differential expression analysis identified differentially expressed genes (DEGs) between AD and control samples. Summary-level data from genome-wide association studies on AD were integrated with expression quantitative trait loci data to identify genes with potential causal relationships with AD using MR. The intersections between DEGs and causal genes were identified as hub genes. Functional analysis was performed to explore underlying mechanisms. Quantitative real-time PCR was applied to validate the expression of hub genes in clinical samples.
ResultsDifferential expression analysis identified 312 DEGs, whereas MR identified 202 genes with causal effects on AD. The intersection of these two sets identified four hub genes: FCRLB, MT2A, PFKFB3, and SRGN. Functional analysis indicated significant associations between AD and immune-related pathways. Correlation analysis revealed significant connections between hub genes and immune cells in AD. The expression of MT2A, PFKFB3, and SRGN was significantly upregulated, whereas FCRLB was downregulated in clinical AD samples compared with controls.
ConclusionThe integration of microarray analysis, MR, and experimental validation identified and validated four potential biomarker genes with causal effects on AD, namely FCRLB, MT2A, PFKFB3, and SRGN. Functional analysis indicated a pivotal role of the immune microenvironment in AD. These findings offer insights into the molecular mechanisms of AD and have implications for improving its diagnosis and treatment strategies.
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Advancements in CDK-based Dual-target Inhibitors for Cancer Therapy
Authors: Bao-Kai Dou, Hai-Wen Zhang and Ying-Jie CuiAvailable online: 23 June 2025More LessBackgroundThe cyclin-dependent kinases (CDKs) play a crucial role in the normal progression of these stages. In tumor cells, CDKs are often highly expressed, leading to uncontrolled cell proliferation. Inhibiting the activity of CDKs in tumor cells can inhibit their growth and proliferation, thereby achieving anti-tumor effects. In recent years, many CDKs inhibitors have been developed, but due to side effects and drug resistance issues, only a few CDKs inhibitors have been approved by the FDA.
MethodsPublications on CDK-based dual-target inhibitors were reviewed using SciFinder and PubMed, excluding reviews, patents, and studies with irrelevant content.
ResultsThe study outlines advancements in CDK-based dual-target inhibitors as antitumor agents, offering insights to support the development and application of more effective cancer therapies.
ConclusionDual-targeted anti-tumor drugs may have better therapeutic effects than single-targeted drugs, which may address drug resistance issues and overcome drug interactions and pharmacokinetic issues associated with combination therapy. As an important direction in cancer treatment, dual target inhibitors have broad development prospects. By continuing to explore and improve dual target therapies, it has potential to overcome many limitations of single target therapy and provide more effective and lasting treatment outcomes for cancer patients.
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Molecular Subtypes of Mixed Gastric Cancer Defined by Machine Learning for Predicting Prognosis and Treatment Response
Authors: Minchao Rao, Ruiwen Ruan, Jianping Xiong and Jun DengAvailable online: 23 June 2025More LessBackgroundGastric cancer (GC) is traditionally classified into intestinal (IGC), diffuse (DGC), and mixed (MGC) types based on pathological features, with each subtype exhibiting distinct clinical outcomes. Among these, DGC is associated with poor prognosis, characterized by low cell adhesion and a high stromal component. Recent proteomic studies have revealed significant differences in extracellular matrix (ECM) composition between DGC and IGC, highlighting the critical role of ECM in tumor biology. MGC, which combines both intestinal and diffuse characteristics, presents substantial heterogeneity, complicating prognosis and personalized treatment approaches. This study reclassifies MGC using extracellular matrix receptor (ECMR) and cell adhesion (CA)-related genes (ECRGs), closely linked to the biological behavior of DGC, to provide insights into prognosis and treatment response.
MethodsRNA sequencing data and clinical information from GC patients were collected from the TCGA and GEO databases, excluding cases of pure IGC and DGC. Based on ECMR and CA-related genes, supervised clustering via non-negative Matrix Factorization (NMF) was used to identify molecular subtypes in MGC. Differential expression and Cox regression analyses were performed to identify prognostic genes, and an ECMR and CA-based gene signature (ECRS) was developed using machine learning techniques. Gene Set Variation Analysis (GSVA) was conducted to assess functional differences between risk groups, while TIDE and pRRophetic analyses were used to predict responses to immunotherapy and chemotherapy.
ResultsA total of 239 MGC patients were classified into two molecular subtypes with significant differences in prognosis. Subtype 2 displayed distinct ECM interactions and connective tissue development pathways. To refine the ECRS model, we tested 117 model combinations across 10 machine learning algorithms, selecting the configuration with the best predictive accuracy. This optimized model distinguished biological and immune characteristics between high- and low-risk groups, with low-risk patients showing greater sensitivity to immunotherapy and standard chemotherapy.
ConclusionThis study identifies novel molecular subtypes of MGC based on ECMR and CA-related genes and establishes an effective ECRS model to predict prognosis, immunotherapy response, and chemotherapy sensitivity. This model supports personalized treatment strategies for MGC.
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Research Progress of Wound Dressing Based on Sodium Alginate Composite Hydrogel
Authors: Fengchao Zhou, Shibin Deng, Guorong Lin, Jiandong Shen and Dianping TangAvailable online: 20 June 2025More LessHydrogel wound dressing has significant advantages in wound treatment. It can shorten the time of wound healing, control the process of wound healing, and effectively promote the healing of damaged tissues in a hydrated environment. Sodium alginate (SA) is a commonly used hydrogel wound dressing material, which can quickly form a three-dimensional network structure hydrogel in a relatively mild environment, but the mechanical properties and stability of a single SA hydrogel are poor. The composite hydrogel prepared by mixing SA with other substances can not only exert the performance of a single substance but also improve the mechanical properties, stability and adsorption of the hydrogel and has a wider application prospect in the field of sustained release control of bioactive substances. Natural polymers have been widely used in the preparation of hemostatic and wound healing materials due to their excellent biocompatibility, degradability, viscoelasticity and easy processing. This paper introduces the research progress of composite hydrogels prepared by SA and natural polymers in mechanical properties, antibacterial, anti-inflammatory, tissue repair and sustained release control of bioactive substances, and provides a theoretical basis for the application of SA-based composite hydrogels in wound dressings.
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Exploring the Role of DPF1 in Hepatocellular Carcinoma: Implications for Prognosis and Therapy
Authors: Fan Yang, Yinyi Li, Dan Chen, Xiuju Wang, Mei Sun, Dongbing Li and Niansong QianAvailable online: 20 June 2025More LessBackgroundHepatocellular carcinoma (HCC) is a life-threatening cancer with rising incidence and mortality rates. Identifying new prognostic biomarkers is crucial for improving HCC management.
ObjectivesThis study investigates the role of Double PHD Fingers 1 (DPF1) in hepatocellular carcinoma (HCC), exploring its potential as a prognostic indicator and therapeutic target.
MethodsWe analyzed DPF1 expression in 374 hepatocellular carcinoma (HCC) tissues and 50 normal tissues from the TCGA-HCC database, as well as in 240 HCC tissues and 202 normal tissues from the ICGC-HCC repository. We examined the correlation between DPF1 expression and clinical parameters, immune cell infiltration, drug response profiles, cancer stem cell (CSC) characteristics, and its diagnostic/prognostic potential using various bioinformatics tools and statistical analyses. Validation was performed using the ICGC and HPA databases, and qRT-PCR was used to confirm DPF1 expression in HCC cell lines.
ResultsDPF1 exhibited abnormal expression in HCC and several other malignancies. Elevated DPF1 levels were significantly associated with higher Alpha-fetoprotein (AFP) levels (p = 0.043) and poorer clinical outcomes, including diminished overall survival (OS) (p = 0.002), progression-free survival (PFS) (p = 0.018), and disease-specific survival (DSS) (p = 0.001). DPF1 expression was also linked to immune cell infiltration, immune checkpoint gene expression, drug sensitivity, and CSC characteristics. Notably, DPF1 was significantly overexpressed in HCC tissues and cell lines at both transcriptional and translational levels.
ConclusionOur study reveals that DPF1 is a novel prognostic biomarker in HCC, with potential implications for immunotherapy and drug resistance. Elevated DPF1 expression is associated with adverse clinical outcomes and may serve as a target for future therapeutic interventions in HCC.
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Identify Key Genes and Construct the lncRNA-miRNA-mRNA Regulatory Networks Associated with Glioblastoma by Bioinformatics Analysis
Authors: Dong Xingli, Ilgiz Gareev, Sergey Roumiantsev, Ozal Beylerli, Valentin Pavlov, Shiguang Zhao and Jianing WuAvailable online: 20 June 2025More LessIntroductionGlioblastoma is the most common and aggressive brain tumor, with low survival rates and high recurrence rates. Therefore, it is crucial to understand the precise molecular mechanisms involved in the oncogenesis of glioblastoma.
Materials and MethodsTo investigate the regulatory mechanisms of long non-coding RNA (lncRNA)-microRNA (miRNA)-messenger RNA (miRNA) network related to glioblastoma, in the present study, a comprehensive analysis of the genomic landscape between glioblastoma and normal brain tissues from the Gene Expression Omnibus (GEO) dataset was first conducted to identify differentially expressed genes (DEGs) in glioblastoma. Following a series of analyses, including Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analyses, protein-protein interaction (PPI), and key model analyses. In addition, we used the L1000CDS2 database bioinformatic tool to identify candidates for therapy based on glioblastoma specific genetic profile.
ResultsIn our results, 100 key genes, 50 upregulated and 50 downregulated, were ultimately identified. The results of KEGG pathway enrichment gene analysis showed that the five regulatory pathways. Furthermore, 3 small molecule signatures (trichostatin A, TG-101348, and vorinostat) were recommended as the top-ranked candidate therapeutic agents. Nevertheless, the constructed miRNA-mRNA network revealed a convergence on 40 miRNAs. We found that dysregulation of lncRNAs such as KCNQ1OT1 and RP11-13N13.5 could sequester several miRNAs such as hsa-miR-27a-3p, hsa-miR-27b-3p, hsa-miR-106a-5p, etc., and promote the development and progression of glioblastoma.
ConclusionOur study identified key genes and related lncRNA-miRNA-mRNA network that contribute to the oncogenesis of glioblastoma.
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A Prognostic Lysine Crotonylation Signature Shapes the Immune Microenvironment in Hepatocellular Carcinoma
Authors: Weiping Su, Kuo Kang, Xuanxuan Li and Heyuan HuangAvailable online: 13 June 2025More LessIntroductionHepatocellular carcinoma (HCC) has a poor prognosis due to late diagnosis and rapid progression, highlighting the need for a deeper understanding of its pathogenesis. Lysine crotonylation (Kcr), a unique post-translational modification, plays a crucial role in epigenetic regulation. However, the role of crotonylation-related genes (CRGs) in HCC remains poorly understood, necessitating an investigation of their prognostic and therapeutic relevance.
MethodsTranscriptomic and clinical data were obtained from TCGA and GEO databases. A CRG-based risk score was developed using Cox and LASSO regression analyses. To enhance survival prediction, a nomogram incorporating the risk score was constructed. Immune cell infiltration and drug sensitivity were assessed using CIBERSORT and 'OncoPredict.' Single-cell sequencing was employed to examine CRG expression within the HCC tumor microenvironment.
ResultsAn 8-gene risk score model (HDAC2, ACADS, HDAC1, ENO1, PPARG, ACADL, ACSL6, and AGPAT5) was established, effectively stratifying patients into high- and low-risk groups in the training set. Cox regression and Kaplan-Meier analyses validated its prognostic value in the test set. The nomogram demonstrated enhanced prognostic accuracy for survival prediction. Differences in immune cell infiltration and immune checkpoint expression between risk groups highlighted the association between CRGs and the tumor immune microenvironment. Single-cell sequencing revealed that CRGs were highly expressed in key immune cells within the HCC microenvironment. Additionally, drug sensitivity analysis suggested that specific targeted therapies may be more effective in HCC patients.
DiscussionCrotonylation-related gene signature demonstrates strong prognostic value in hepatocellular carcinoma (HCC), effectively stratifying patients into high- and low-risk groups and recapitulating known oncogenic roles of HDAC1/2, ENO1, PPARG, AGPAT5 and the protective functions of ACADS, ACADL, and ACSL6. It was found that crotonylation not only influences tumor cell metabolism and epigenetic regulation but also shapes the immune microenvironment, highlighted by distinct checkpoint expression, differential immune cell infiltration, and drug sensitivity profiles, which position our model as a promising tool for personalized therapeutic decision-making. However, clinical translation will require standardized, reproducible assays for crotonylation measurement and rigorous validation across diverse HCC etiologies (e.g., viral vs. non-viral), along with mechanistic and longitudinal studies to dissect causality versus correlation, assess off- target effects of crotonylation modulators, and confirm functional impacts on immune modulation before routine diagnostic or therapeutic use.
ConclusionThis study identifies a prognostic CRG signature for HCC and provides novel insights into personalized treatment strategies.
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Synthesis and Antiproliferative Activity against Melanoma Cells of New Heterocyclic Hybrids Based on Pyridine and Pyrimidine Scaffolds
Available online: 10 June 2025More LessBackgroundOver 85% of biologically active compounds are heterocycles or contain heterocyclic groups, underscoring their vital importance in contemporary drug development. Among them, nitrogen-containing derivatives, such as pyridines and pyrimidines, are considered privileged structures in approved drugs or are extensively studied due to their promising therapeutic effects.
ObjectiveIn the current work, we would like to verify the hypothesis that incorporating heterocyclic pharmacophores into derivatives of pyrimidine-2(1H)-thione (PMT), 2-pyridone (P), pyridine-2(1H)-thione (PT), dihydropyrimidine-2(1H)-thione (DHPMT), dihydropyridin-2(1H)-one (DHP), and dihydropyridine-2(1H)-thione (DHPT) rings enhances antitumor activity.
MethodsA range of novel pyridine- and pyrimidine-based compounds were synthesized and assessed for their anticancer properties against the melanoma A375 cell line. The two most potent compounds (16b and 29) were then chosen for further evaluation of their effects on non-cancerous human dermal fibroblasts, cancer cell apoptosis, cell cycle phase distribution, and tubulin polymerization. Furthermore, in silico analyses were performed to assess the pharmacokinetics, toxicity, drug-likeness, and molecular target of the selected compounds.
ResultsAmong the 33 compounds tested, pyridine analogs 16b and 29 demonstrated the strongest antiproliferative activity (with IC50 values of 1.85 ± 0.44 µM and 4.85 ± 1.67 µM, respectively) and selectivity (SI=65.08 and SI> 100, respectively) against cancer cells. Additional studies revealed that compound 16b, which features a thiophene ring at the C-5 position and a 3,4,5-trimethoxyphenyl (TMP) group, showed the most promising cell cycle arrest and tubulin polymerization inhibition (IC50=37.26 ± 10.86 µM), resulting in cancer cell apoptosis. In silico ADMET analysis confirmed the drug- likeness of the synthesized compounds.
ConclusionThis research reinforced the significance of heterocyclic rings as valuable pharmacophores. Additionally, it highlighted the antiproliferative and antimitotic potential of modified pyridine derivatives.
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Recent Advances in FLT3-Based Dual Inhibitors: A Promising Strategy for the Treatment of Acute Myeloid Leukemia
Authors: Haibin Yuan, Jinxin Che and Tao LiuAvailable online: 03 June 2025More LessAcute Myeloid Leukemia (AML) is a hematological malignancy known for its aggressive nature, resistance to therapies, and high relapse rates. Approximately one-third of AML cases involve mutations in the FLT3 gene, making it a pivotal target for treatment strategies. Early FLT3 inhibitors demonstrated efficacy initially, yet subsequent issues with drug resistance and disease recurrence underscored the multifaceted challenges of AML management. Immunotherapy and combination therapies are effective strategies to overcome resistance, but there are limitations, such as toxic side effects. In contrast, FLT3 dual-target inhibitors exhibit excellent anti-tumor effects, while being safer and more controllable. Several of these inhibitors have progressed to clinical trials, underscoring their potential in advancing therapeutic options for AML. This review explores the synergistic potential of targeting FLT3 kinase in conjunction with other anti-cancer mechanisms and provides an overview of recent advancements in FLT3 dual-target inhibitors over the past decade.
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A Genetic Perspective to Reveal the Impact of Mitochondrial Dysfunction-related Genes on Diabetic Kidney Disease: A Multi-omics Study
Authors: Yan Zhang, Zeyuan Wang, Jin Shang, Yijun Dong and Zhanzheng ZhaoAvailable online: 03 June 2025More LessObjectiveThis study investigated the causes of Mitochondrial Dysfunction (MD) in Diabetic Kidney Disease (DKD) progression, and identified genes associated with DKD, especially those with significant genetic causal effects, to provide a theoretical basis for DKD treatment.
MethodsUsing a large database and single-cell RNA sequencing (scRNA-seq) data, 333 MDRDEGs were discovered. MDRDEGs were linked to AGE-RAGE signaling, RNA processing, protein transport, and energy metabolism using functional enrichment analysis. Seven MDRDEGs with significant genetic causal effects in DKD were discovered using SMR and MR analyses: ACTN1, ALG11, CCNB1, HIVEP2, MANBA, TUBA1A, and WFS1. Co-localization and scRNA-seq analyses examined these genes' DKD connections. Due to the high significance of its prediction model and DKD expression, ACTN1 was studied in depth. PheWAS and molecular dynamics analysis assessed ACTN1's safety and efficacy as a therapeutic target, and its connection with other symptoms. ACTN1 protein expression in DKD tissues was confirmed by immunofluorescence.
ResultsFunctional enrichment analysis revealed that MDRDEGs were mostly related to AGE-RAGE signaling, RNA processing, protein transport, and energy metabolism. Seven MDRDEGs caused DKD genetically in SMR and MR investigations. Genetic variations in ACTN1, ALG11, MANBA, and TUBA1A were linked to DKD by co-localization studies. scRNA-seq showed a dramatic increase in ACTN1 expression in DKD. Molecular dynamics analysis demonstrated that Dihydroergocristine can safely bind to ACTN1, while the PheWAS investigation found no significant relationships. DKD tissues exhibited higher ACTN1 protein levels via immunofluorescence.
DiscussionThis study identified MDRDEGs linked to inflammation, cytoskeletal stabilization, and glucose metabolism pathways critical in Diabetic Kidney Disease (DKD) pathogenesis, highlighting their clinical potential as therapeutic targets. Notably, ACTN1 emerged as a causally linked gene overexpressed in DKD, with the prediction of dihydroergocristine as a targeting compound, offering novel avenues for clinical intervention.
ConclusionThis study suggests that ACTN1 may be a therapeutic target for DKD and sheds light on its molecular pathogenesis, clinical prevention, and treatment.
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MDMA-Assisted Treatment for PTSD, Anxiety, and Depression: A Visualized Literature Analysis over 30 Years
Authors: Jinlong Zhang, Xingxing Dang, Jiang Lin, Qianqian Chen, Binbin Wang and Jie YanAvailable online: 02 June 2025More LessBackgroundThe incidence of psychiatric disorders, such as post-traumatic stress disorder (PTSD), anxiety, and depression, has been steadily increasing, while current treatment approaches remain limited in efficacy. As a result, there is an urgent need to explore more effective therapeutic interventions. In recent years, MDMA (3,4-methylenedioxymethamphetamine)-assisted therapy (MDMA-AT) has emerged as a promising and innovative approach, demonstrating favorable clinical potential in the treatment of these disorders. Although preliminary studies have confirmed its therapeutic efficacy, a comprehensive and systematic analysis of the research trends and current limitations of MDMA-AT remains lacking.
MethodsThis study employed a bibliometric approach to systematically retrieve and analyze research literature published between 1994 and 2023 on the application of MDMA in the treatment of PTSD, anxiety, and depression. Relevant data were obtained from three prominent databases: Web of Science Core Collection, PubMed, and Scopus. VOSviewer and Microsoft Excel were used to perform visual and quantitative analyses, focusing on publication trends, research hotspots, prolific authors, leading institutions, and international collaboration networks.
ResultsThe findings indicated a substantial increase in MDMA-related research over the past decade. The United States has led the field in publication output, with the Multidisciplinary Association for Psychedelic Studies (MAPS) identified as the most productive institution. Key figures, such as Rick Doblin, have demonstrated high influence and centrality within the global research network. The research focus has gradually shifted from investigations of the neurotoxic properties of MDMA to explorations of its therapeutic mechanisms, safety profiles, and clinical applications.
ConclusionThis study provides a comprehensive synthesis of the past thirty years of research on MDMA-AT in the treatment of PTSD, anxiety, and depression, identifying major research trajectories and critical challenges in the field. While current findings highlight the therapeutic promise of MDMA and its translational potential, further research is needed to improve trial design, enhance sample diversity, and evaluate long-term effects in order to support the standardization and evidence-based integration of MDMA-assisted therapy into clinical practice.
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The Role of CDKs in the Regulation of the Monocyte/Macrophage Immune Response
Authors: Alexander N. Neznamov, Yulia P. Baykova and Marina V. KubekinaAvailable online: 29 May 2025More LessMonocytes/macrophages play an important role in controlling the onset and progression of inflammatory responses by changing their activation state. Inflammation accompanies some slowly progressing pathologies, such as neurodegenerative diseases, rheumatoid arthritis, atherosclerosis, and other inflammatory disorders. Monocyte/macrophage differentiation and polarization are accompanied by transcriptional profile changes. A better understanding of the specific ligands and receptors involved in the regulation of immune cell transcription will help to identify selective molecular targets for the therapy of inflammatory diseases. CDKs are key regulators of cell cycle and transcription in eukaryotes. Thus, this review is aimed to examine the role of CDKs in the monocyte-macrophage response and the data obtained from relevant experiments. M1 macrophages can trigger harmful inflammatory responses. A potential solution is to shift the polarization of macrophages towards the protective anti-inflammatory M2 phenotype (macrophage reprogramming). The mechanisms regulating this switch are crucial for the proper functioning of monocytes and macrophages. Inhibition of different types of CDKs leads to changes in the functional activity of monocytes/macrophages. It has been shown that monocytes/macrophage differentiation and immune functions are dependent on CDK activity. Recent studies on CDKs and their role in the immune system have concluded that their activity plays an essential role in monocyte/macrophage differentiation and immune functions. However, the role of CDKs in monocytes, macrophages, and the immune response is not fully understood. Unraveling the role of transcriptional regulators could provide valuable insights for the development of new treatments for macrophage-mediated inflammatory diseases.
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Capsid Assembly Modulators: A Promising Curative Regimen for Chronic Hepatitis B
Authors: Chunhua Ma, Xiaoyan Zhang, Junbiao Chang and Bin YuAvailable online: 23 May 2025More Less
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Betanin, a Natural Product from Red Beets, Improves Endothelial Dysfunction through Activation of Autophagy
Authors: Junpei Li, Luyan Xu, Duoduo Zha, Yixiong Zhan, Yijia Wu, Xianxian Mao, Li Zuo, Xinyan Bai, Linsiqi Wang, Kunhua Chen, Jinghua Luo and Yisong QianAvailable online: 22 May 2025More LessObjectiveEndothelial dysfunction is the altered pathological ability of endothelial cells to modulate the passage of cells and solutes across vessels, which underlies the development of inflammatory diseases. Betanin (betanidin-5-O-β-glucoside), a natural product rich in red beets, is a water-soluble nitrogen-containing pigment, and its potential protective effects on cardiovascular disease have been reported. In this study, we investigated the protective role of betanin in vascular endothelial dysfunction induced by TNFα and explored potential mechanisms.
MethodsWe modelled endothelial dysfunction through TNFα stimulation in human umbilical vein endothelial cells (HUVECs) and examined the role of betanin and its possible mechanism of action by MTT assay, Western blotting, and immunofluorescence staining. A systemic inflammation model of mice was built through LPS to investigate the protective roles of betanin.
ResultsBetanin pre-treatment increased cell viability, inhibited the expression of intercellular cell adhesion molecule-1 (ICAM-1) and vascular cell adhesion molecule-1 (VCAM-1), and improved endothelial tight junction by upregulating the expression of occludin and zonula occludens-1 (ZO-1) after TNFα stimulation in HUVECs. In terms of endothelial-mesenchymal transition, betanin up-regulated the expression of endothelial phenotypes VE-cadherin and CD31, whereas it inhibited the expression of mesenchymal phenotype N-cadherin, indicating that betanin reduced endothelial-mesenchymal transition in TNFα-stimulated HUVECs. In addition, betanin increased the expression of LC3 and decreased the expression of p62, two central proteins in autophagy. Betanin also reversed the abnormal autophagic flux after TNFα exposure. However, the specific autophagy inhibitor, 3-methyladenine, blocked the protective effect of betanin. Finally, betanin was found to greatly decrease ICAM-1 and VCAM-1 expression, and upregulate occludin and ZO-1 levels in a systemic inflammation model of mice.
ConclusionThe above results collectively suggested that betanin may improve endothelial dysfunction by promoting autophagy, thus exerting beneficial effects on cardiovascular health.
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Exploring New Frontiers in Pharmacological Treatment of Depression: A Review on Recent Advances
Authors: Muthukumaran Thulasingam and Chitra VellapandianAvailable online: 22 May 2025More LessThe current treatment strategy is still subpar, especially for severe mental problems, despite tremendous progress in the understanding of the central nervous system. Improving healthcare usually entails two main approaches: investigating new treatment approaches and improving current ones. New pharmacological options include enhanced monoaminergic pharmaceuticals, old treatments reassessed with a better knowledge of the biology of mental disease, and medications that target new therapeutic pathways. One major clinical challenge in the treatment of depression is resistance to antidepressant drugs. It appears promising to switch to monotherapy using new multifunctional antidepressants and add new atypical antipsychotics, such as brexpiprazole and aripiprazole. Current efforts are concentrated on unraveling depression's origins and pinpointing fresh targets for pharmacological intervention. This review explores encouraging novel pharmacological avenues for major depressive disorder treatment. These include targeting receptors, such as N-methyl-D-aspartate and metabotropic glutamate receptors, and employing glutamatergic modulators and various augmentation strategies, all of which hold the potential for reversal of depressant effects. Combining innovative concepts with enhancements of existing discoveries may propel antidepressant research forward, offering hope for developing compounds that are effective and rapid in their action, even among patients who have found limited success with other therapies.
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Relationship between 21 Medications and Negative Emotions: A Mendelian Randomization Analysis in Asian Populations
Authors: Xiaotong Wang, Yuhan Wei, Xi Nie, Yuchuan Zhang, Lan Yang, Weiting Zeng, Kexin Shi and Haixiong LinAvailable online: 19 May 2025More LessObjectiveNegative emotional states, such as nervousness, anxiety, depression, and tension, exert profound detrimental effects on an individual's quality of life and overall health. Although certain widely prescribed medications have been observed to modulate these emotional states, the existing body of research in this domain remains insufficient. To address this gap, Mendelian randomization (MR) methodologies, leveraging large-scale datasets, were employed to investigate the causal relationships between 21 commonly utilized medications and the manifestation of negative emotions.
MethodsThe inverse variance weighting (IVW) method was employed as the primary analytical strategy to analyze causal relationships. MR-Egger, weighted mode, and weighted median approaches were utilized to enhance the robustness of the results. Sensitivity analyses were conducted to assess the stability of the data.
ResultsAgents acting on the renin-angiotensin system, β-blocking agents, antithrombotic agents, and salicylic acid and derivatives could reduce the risk of nervousness, anxiety, tension, or depression (OR = 0.61, 95% CI 0.37 to 0.99, p = 0.047; OR = 0.59, 95% CI 0.36 to 0.98, p = 0.041; OR = 0.55, 95% CI 0.34 to 0.88, p = 0.013; OR = 0.61, 95% CI 0.40 to 0.95, p = 0.030), with no heterogeneity, horizontal pleiotropy, or reverse causation (p > 0.05).
ConclusionThis study revealed four medications associated with reducing the risk of negative emotions, providing clinicians with a scientific basis for medication selection to better assist patients in alleviating psychological issues and improving their quality of life.
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Emerging New Treatments for Colon Cancer
Authors: Sheu Ibrahim Adedayo and Eva Sonnenberg-RiethmacherAvailable online: 16 May 2025More LessColorectal cancer includes cancer of the rectum and colon. It is the primary cause of cancer-related deaths among men under 50 years of age. In 2022, over 1.9 million cases of CRC were reported, resulting in approximately 904,000 deaths worldwide. Factors like smoking, alcohol consumption, obesity, familial history, and inflammation significantly contribute to the risk of CRC development. Additionally, bacterial infections from organisms like Bacteroides fragilis, Fusobacterium nucleatum, and Helicobacter pylori also play a role in increasing this risk. Conventional treatment methods for CRC typically involve surgery/polypectomy, chemotherapy, and radiotherapy. Because of limitations like lack of target specificity, the risk of tumor relapse, and the potential for tumor resistance, there is a growing necessity for more individually tailored treatment strategies to improve the outcomes of patients with CRC. As such, emerging treatments like cancer vaccine, (CAR) T-cells, CAR-NK cells, macrophages, and stem cell engineering (particularly mesenchymal stem cells), dendritic vaccine, siRNA, and miRNA, hold significant promise in enhancing outcomes for CRC patients. Moreover, specific gut microbiomes like Bacteroides fragilis, Streptococcus gallolyticus, Enterococcus faecalis, and Escherichia coli, linked to CRC development, have been identified. Hence, modulating the gut microbiome to potentially enhance responses to CRC in high-risk populations could be a new line of treatment. This modulation can be accomplished through dietary interventions, prebiotics, probiotics, postbiotics, antibiotics, and fecal microbiota transplantation (FMT). This review summarizes the most promising new emerging treatments in the fight against colon cancer.
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A Neuroendocrine Differentiation-related Molecular Model for Prognosis Prediction in Prostate Cancer Patients
Authors: Yong Wei, Jiang-Bo Sun, Qian-Ren-Shun Qiu, Yu-Xuan Zhao, Qing-Shui Zheng, Xiong-Lin Sun, Ning Xu and Xue-Yi XueAvailable online: 15 May 2025More LessPurposeThe purpose of this study is to construct and validate a neuroendocrine differentiation-related molecular model for predicting prognosis in patients with prostate cancer (PCa).
Materials and MethodsTranscriptome data for PCa were collected from the Gene Expression Omnibus (GEO) and The Cancer Genome Atlas (TCGA) websites. Differentially expressed neuroendocrine differentiation related genes (NDGs) were identified. By utilizing multivariate Cox analysis, a neuroendocrine differentiation-related molecular model for predicting prognosis was constructed and validated. The study investigated the novel model’s association with the tumor immune microenvironment, clinicopathological characteristics, tumor stemness, and anticancer treatment sensitivity. Additionally, preliminary experimental verifications of Diencephalon / Mesencephalon Homeobox 1 (DMBX1) were conducted.
ResultsFinally, we identified a total of 19 differentially expressed NDGs. A neuroendocrine differentiation-related molecular model was established and successfully validated both internally and externally. The high-risk group exhibited significantly poorer biochemical recurrence-free survival (BCRFS) in the training, testing, and validating cohorts. The areas under the receiver operating characteristic curves for the training, testing, and validating cohorts were 0.825, 0.719, and 0.729, respectively. The tumor immune microenvironment, clinicopathological features, tumor stemness, and anti-cancer drug sensitivity was significantly different between high and low-risk patients. Preliminary experiments revealed that higher expression of DMBX1 significantly enhanced the proliferation, migration, and neuroendocrine differentiation of PCa cells.
ConclusionThis research developed a unique neuroendocrine differentiation-related molecular model that is highly suitable for predicting BCRFS. High DMBX1 expression may promote the development and neuroendocrine differentiation of prostate cancer.
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Binding Specificity and Local Frustration in Structure-based Drug Discovery
Authors: Zhiqiang Yan, Yuqing Li, Ying Cao, Xuetao Tao, Jin Wang and Yongsheng JiangAvailable online: 12 May 2025More LessEvolution has optimized proteins to balance stability and function by reducing unfavorable energy states, leading to regions of flexibility and frustration on protein surfaces. These locally frustrated regions correspond to functionally important areas, such as active sites and regions for ligand binding and conformational plasticity. Typical strategies of structure-based drug discovery primarily concentrate on enhancing the binding affinity during compound screening and target identification. However, this often overlooks the binding specificity, which is critical for distinguishing specific binding partners from competing ones and avoiding off-target effects. According to the energy landscape theory, optimization of the intrinsic binding specificity involves globally minimizing the frustrations existing in the biomolecular interactions. Recent studies have demonstrated that identifying local frustrations provides a promising approach for screening more specific compounds binding with targets, and quantifying binding specificity complements typical strategies that focus on binding affinity only. This review explores the principles and strategies of computationally quantifying the binding specificity and local frustrations and discusses their applications in structure-based drug discovery. Moreover, given the advancements of artificial intelligence in protein science, this review aims to motivate the integration of AI and available approaches in quantifying the binding specificity and local frustration. We expect that an AI-powered prediction model will accelerate the drug discovery process and improve the success rate of hit compounds.
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Icaritin Attenuates HSC Activation by Down-regulating the HIF-1α and TGF-β/Smad Signaling Pathways to Ameliorate Liver Fibrosis
Authors: Keping Feng, Qiaoman Fei, Na Huang, Ke Du, Chengbo Zhang, Yudan Fan, Ying Zhou, Yaping Zhao, Pengfei Liu and Zongfang LiAvailable online: 05 May 2025More LessIntroductionIcaritin is a bioactive flavonol isolated from the Chinese medicinal herb Epimedium. The comprehensive understanding of antifibrotic effects and associated molecular mechanisms of icaritin remains incomplete. This study aims to explore the protective effects of icaritin against liver fibrosis and to further elucidate the mechanisms involved.
MethodsHuman hepatic stellate LX-2 cells stimulated with TGF-β1 and a carbon tetrachloride (CCl4)-induced liver fibrosis mouse model were employed. In vitro assays were carried out to evaluate collagen type I (COL I) and α-smooth muscle actin (α-SMA) expression, while in vivo studies assessed fibrosis alleviation. Molecular mechanisms were explored via analysis of TGF-β1, phosphorylated Smad2/3, and HIF-1α protein levels using Western blotting.
ResultsIcaritin suppressed TGF-β1-induced COL I and α-SMA expression in LX-2 cells and ameliorated liver fibrosis in CCl4-treated mice. Mechanistically, it significantly reduced TGF-β1 levels, inhibited Smad2/3 phosphorylation, and downregulated HIF-1α protein expression in LX-2 cells.
ConclusionIcaritin attenuated experimental liver fibrosis through the inhibition of the TGF-β/Smad and HIF-1α signaling pathways, highlighting its therapeutic potential for fibrotic liver diseases.
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Genetic Studies on Multiple Consanguineous Families Segregating Diverse Phenotypes of Microphthalmia Identified Novel and Recurrent Mutations
Available online: 05 May 2025More LessIntroductionAnophthalmia/microphthalmia (A/M) and anterior segment dysgenesis (ASD) are severe ocular anomalies impacting eye morphology, occurring in 30 per 100,000 live births. Genetic research has identified over 30 genes linked to A/M anomalies, with their products mainly involved in eye organogenesis.
Aims and ObjectivesThis study examined two consanguineous A/M families to identify disease-associated pathogenic mutations and predict their functional impact.
MethodologyPatients were clinically examined using A-scan and ophthalmic ultrasonography. Whole exome sequencing (WES) identified candidate pathogenic variants validated through Sanger sequencing. Computational analyses assessed the impact of these mutations on protein structure and function.
ResultsThe clinical diagnosis of family A revealed microphthalmia with ASD, while family B presented with an A/M phenotype. Exome analysis of family A identified a novel missense variant, NM_012293:c.A3742G [p.(Arg1248Gly)], in the peroxidasin (PXDN) gene (ClinVar ID: VCV001333267.1). At the cellular level, PXDN is involved in establishing sulfilimine bonds in collagen IV, a component of the basement membrane, suggesting that ocular defects may result from impaired integrity of the basement membrane in the developing eye. In contrast, Family B exhibited a nonsense variant NM _012186:c.720C>A (p.Cys240*) in the FOXE3 gene. This variant has been previously reported in other South Asian populations, suggesting a founder effect in subcontinent populations. Structural modeling and simulation analysis of mutant proteins revealed altered properties, thus corroborating the pathogenicity of the identified mutation.
ConclusionOur findings may contribute to the elucidation of genotype-phenotype correlations, potentially facilitating the molecular diagnosis of microphthalmia and ASD.
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Spinosin Suppresses RANKL-induced Osteoclastogenesis and Alleviates LPS-induced Cranial Osteolysis: A Study based on Network Pharmacology and Experimental Validation
Authors: Qi Meng, Yang Su, Shankun Dong, Jianxun Ge, Lei Tian and Shui SunAvailable online: 05 May 2025More LessAimInflammatory osteolysis often characterizes many orthopedic diseases, with an important role played by the overactivity of osteoclasts. This research endeavoured to investigate the effects of spinosin, a potent ingredient in traditional Chinese medicine, on Lipopolysaccharide (LPS)-induced osteoclast activity and formation to alleviate osteolysis.
MethodsBased on the molecular structure of spinosin, network pharmacology was used to predict its primary targets and mechanisms. LPS was used to stimulate pre-osteoclasts and to simulate an inflammatory environment. The effect of spinosin on osteoclast biology was subsequently examined via morphological study, qPCR, and Western blot (WB). Moreover, LPS-induced cranial osteolysis mice were utilized, followed by micro-CT analysis, to reveal the curative effects in vivo.
ResultsNetwork pharmacology and molecular docking suggested that EGFR and Akt might be the key targets for the efficacy of spinosin in inflammatory osteolysis. The results of in vitro experiments demonstrated that spinosin significantly inhibited osteoclast function and activity in the inflammatory environment, and this effect might be achieved through regulating EGFR-Akt signaling. The results of animal experiments also showed spinosin-protected mice against LPS-induced bone loss.
ConclusionSpinosin can inhibit EGFR-mediated Akt phosphorylation, which in turn negatively affects downstream Nfatc1-mediated osteoclast-associated gene expression and subsequent osteoclast formation and functionality, mitigating the LPS-induced osteolysis. Our study proves that spinosin holds the promise of being an innovative drug to prevent inflammatory osteolysis.
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Identification and Validation of BATF3 as a Promising Biomarker Gene for Peripheral T-cell Lymphoma
Authors: Yidong Zhu, Jun Liu and Ting ZhangAvailable online: 02 May 2025More LessBackgroundPeripheral T-cell lymphoma (PTCL) is a rare and heterogeneous group of hematological malignancies. Treatment options are limited and often unsatisfactory, leading to a poor prognosis in most subtypes.
ObjectiveThis study aimed to identify potential biomarker genes for PTCL and to explore the underlying mechanisms by integrating machine learning, Mendelian Randomization (MR), and experimental validation.
MethodsMicroarray datasets (GSE6338, GSE14879, and GSE59307) were downloaded from the Gene Expression Omnibus database. Differential expression analysis was conducted to identify the Differentially Expressed Genes (DEGs) between patients with PTCL and controls. A machine learning algorithm was then used to further refine the selection of characteristic genes for PTCL. We integrated genome-wide association studies data with expression quantitative trait loci data to identify genes with potential causal relationships to PTCL. Functional analysis was performed to explore underlying mechanisms. Finally, the identified gene was validated in clinical samples from patients with PTCL and controls.
ResultsBased on 60 DEGs, the least absolute shrinkage and selection operator algorithm identified nine characteristic genes for PTCL. MR analysis revealed 203 genes with causal effects on PTCL, ultimately identifying one co-expressed gene: Basic Leucine Zipper ATF-like Transcription Factor 3 (BATF3). It demonstrated good predictive performance across various PTCL subtypes, with AUC values ranging from 0.7 to 1. Functional analysis suggested that BATF3 may play a role in PTCL through immune-related pathways. Experimental validation using clinical samples further suggested the potential of this biomarker gene in PTCL.
ConclusionBy combining machine learning, MR, and experimental validation, we identified and validated BATF3 as a promising biomarker of PTCL. These findings provide insights into the molecular mechanisms underlying PTCL and may inform the development of effective treatment strategies for this disease.
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Identification and Experimental Validation of Tumor Antigens and Hypoxia Subtypes of Osteosarcoma for Potential mRNA Vaccine Development
Authors: Chunnian Ren, Dawei He and Quan WangAvailable online: 29 April 2025More LessBackgroundOsteosarcoma is the most common primary malignant bone tumor in children and adolescents. The aim of this study was to explore the possibility of OS hypoxia subtype for anti-OS mRNA vaccine development and select suitable patients for precision therapy.
MethodsWe comprehensively explored hypoxia-related genes (HRGs) as potential sources of tumor neoantigens in OS patients. Gene set enrichment analysis algorithm and consensus clustering analysis were used to determine immune subtypes and evaluate tumor microenvironment. Estimation of stromal and immune cells in malignant tumour tissues using expression data algorithm was used to assess tumour immune activity. The OS hypoxia landscape was visualized using dimensionality reduction analysis based on the DDRTree algorithm. Assessment of clinical samples and molecular experiments were performed to verify the determined tumor antigens.
ResultsFour overexpressed and mutated tumor antigens associated with prognosis and infiltration of antigen-presenting cells were identified and verified by clinical samples and molecular experiments. Furthermore, OS patients were stratified into two OS hypoxia subtypes. Interestingly, patients with the OS hypoxia subtype 1 tumor had a superior survival than those with the OS hypoxia subtype 2 tumor. Distinct expressions of immune checkpoint proteins (ICPs) and immunogenic cell death (ICD) modulators were observed in different immune subtype tumors. Finally, the immune landscape of OS showed a high degree of heterogeneity between individual patients.
ConclusionThis study identified potential antigens for the anti-OS mRNA vaccine as well as different OS hypoxia subtypes, guiding more effective immunotherapeutic strategies and selecting appropriate patients for tumor vaccine therapy.
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The Pre-metastatic Niche-related Index Reveals the Immune Signature and Immunotherapy Response in Lung Adenocarcinoma
Authors: Weichang Yang, Zhijian Wu, Shanshan Cai, Jiajia Xiang and Xiaoqun YeAvailable online: 29 April 2025More LessBackgroundMetastasis is the leading cause of death in lung cancer patients. Pre-metastatic niche (PMN) plays an important role in pre-metastatic tumors. However, the development of clinical applications of PMN is still limited.
MethodsExpression data for lung adenocarcinoma (LUAD) patients and PMN-related genes were downloaded from the UCSC Xena website and GeneCards database, respectively. Multiple combinations based on machine learning algorithms were used to screen signature genes and construct a PMN-associated index. Spearman analysis explored the correlation between the PMN-associated index and immune cell infiltration. In addition, we analyzed the clinical value of the PMN-associated index based on drug sensitivity analysis and TIDE scores.
ResultsThe enrichment analyses suggested that PMN-related genes were mainly enriched in the PI3K-Akt and HIF-1 signaling pathways. We chose random survival forest, Lasso, and multivariate Cox regression analyses to construct the PMN-associated index based on the results of multiple machine learning algorithms. Six signature genes (SNAI2, CXCR4, TNFSF11, ENG, TIMP1, and PDGFB) were screened to construct the PMN-associated index. KM analysis suggested that the survival probability was greater in the low PMN-associated index group than in the high PMN-associated index group. In addition, we confirmed that LUAD patients with a low PMN-associated index were more likely to benefit from immunotherapy.
ConclusionWe confirmed that the PMN-associated index is a valid predictor of prognosis, immune characteristics, and antitumor therapy efficacy in LUAD patients, which provides additional evidence for the potential clinical value of PMN development.
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Melittin Inhibits Ovarian Cancer Cell Growth by Downregulating MMP9 Expression via the JAK2-STAT3 Signaling Pathway
Authors: Hongyi Sun, Jie Ding, Yujia Jiang, Danying Zhang, Jin Yu, Shuai Sun, Jing Zhou and Chaoqin YuAvailable online: 29 April 2025More LessObjectiveThis study aimed to investigate the target sites, core pathways, and mechanisms of action of melittin in treating ovarian cancer through network pharmacology, molecular docking, and experimental verification.
MethodsPotential targets for melittin in ovarian cancer treatment were predicted using databases, followed by Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analyses. The binding of the drug to these targets was confirmed through molecular docking. The core targets and pathways were experimentally validated. A tumor-bearing nude mouse model was established, with the mice randomly divided into treatment and control groups. The treatment group received 5 mg/kg of melittin by intraperitoneal injection, whereas the control group received saline injections. Changes in mouse weight and tumor volume were monitored, and protein expression in mouse tumor tissues was assessed via immunohistochemistry and Western blotting at the end of the experiment.
ResultsFifty-three common targets between melittin and ovarian cancer were identified in the SEA and GeneCards databases. The Protein-Protein Interaction (PPI) analysis highlighted core targets, including MMP9, STAT3, MMP2, STAT6, FURIN, and BRCA1. The GO enrichment results were related mainly to the metabolic processes of collagen degradation, extracellular matrix disassembly, external encapsulating structures, and phospholipase C-activated G-protein-coupled receptor signaling pathways. The KEGG pathway analysis revealed the enrichment of genes related to estrogen signaling, necroptotic apoptosis, the FoxO signaling pathway, microRNAs in cancer, the JAK-STAT signaling pathway, proteoglycans in cancer, and receptor-mediated carcinogenesis. Cell Counting Kit-8 (CCK8) assays, scratch wound healing tests, and Transwell invasion assays demonstrated that melittin significantly inhibited the proliferation, migration, and invasion of ovarian cancer cells. The Western blot results indicated that melittin downregulated the levels of p-JAK2, p-STAT3, and MMP9 in ovarian cancer cells. Molecular docking demonstrated that melittin bound stably to MMP9 and STAT3. The results of animal experiments indicated that melittin suppressed the growth of ovarian tumors in nude mice and significantly downregulated the expression of MMP9, p-JAK2, and p-STAT3 in tumor tissues (p<0.05).
ConclusionMelittin may inhibit the growth of ovarian cancer cells by downregulating MMP9 expression via the JAK2-STAT3 signaling pathway, thus exerting a therapeutic effect.
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Integrating Transcriptomic Data and Mendelian Randomization Analyses Reveals Potentially Novel Sepsis-related Targets
Authors: Wenting Tao and Liang ChenAvailable online: 29 April 2025More LessBackgroundSepsis remains a leading cause of global morbidity and mortality.
ObjectiveTo identify candidate biomarkers that may be mechanistically related to the pathogenesis of sepsis.
MethodsThe Gene Expression Omnibus database was leveraged to identify differentially expressed genes (DEGs) between the healthy control and septicemia groups. Genes causally related to sepsis were probed through the integration of GWAS and expression quantitative trait loci (eQTL) data in a two-sample Mendelian randomization (MR) analysis. A set of key sepsis-related genes was then selected based on the overlap between these putative causal genes and the DEGs. These genes were then subjected to enrichment analyses, testing set validation, and analyses of their expression dynamics in clinical samples.
ResultsAn examination of the overlap between 228 sepsis-related DEGs identified in the training dataset and 275 candidate causal genes linked to sepsis derived from the MR analysis led to the selection of four overlapping (SLC22A15, IL5RA, HDC, and SLC46A2) that may play a key role in sepsis. Enrichment analyses indicated that these genes were involved in the regulation of histidine metabolism and immune/inflammatory responses. In immune cell infiltration analyses, these genes were positively correlated with inflammatory response activation and the suppression of adaptive immunity. Consistent findings were obtained through qPCR verification in clinical samples.
ConclusionThese results offer potential insight into the mechanisms that govern septicemia and thus suggest a promising series of candidates that may be amenable to targeting to prevent or treat sepsis more effectively.
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Sulfur and Selenium Modifications at Phosphorus Atom in Nucleoside Monophosphates, Activity and Potential Applications
Available online: 28 April 2025More LessNucleotides and nucleosides play an essential role in many cellular processes but have low physiological stability, which limits their usefulness. Nucleosides modified with chalcogen at the phosphorus atom are more stable in body fluids and tissues. They can act as activators or inhibitors in many processes, including signal transduction through receptors and intracellular signaling. Some of them are also used as drugs or prodrugs that can serve as potential therapeutics in cancer and other diseases. This review focuses primarily on the activity and potential application of the nucleoside monophosphates modified with sulfur and selenium at the phosphorus atom, such as nucleoside 5’-O-phosphorothioate and 5’-O-phosphoroselenoates as well as adenosine cyclic 5’, 3’- monothiophosphate and guanosine cyclic 5’, 3’-monothiophosphate.
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Variants of Visceral Adipocytokine Genes in Obesity and Coronary Atherosclerosis: A Review
Available online: 23 April 2025More LessAdipocytokines secreted by adipokines can have both direct and indirect effects on the development of atherosclerosis progression. Research using modern high-tech methods of molecular genetic analysis, which make it possible to identify the influence of certain variants of regulatory genes on the course of the atherosclerotic process, is becoming increasingly relevant. The review examines variants of genes (ADIPOQ, RETN, ITLN1, PBEF1, SCT, LEP, and GHRL) associated with obesity and metabolic disorders, as well as atherosclerosis-associated cardiovascular diseases. The review also addresses the mechanisms underlying various variants of visceral adipocytokine genes, as well as the translational potential of understanding these variants for therapeutic advances. The variants studied in the context of obesity, metabolic disorders, and atherosclerosis-associated cardiovascular diseases included rs1501299 (276G/T), rs2241766 (45G/T), rs74577862, rs182052, and rs266729 for ADIPOQ gene; rs1862513 (-420C/G), rs3745367 (299 G/A) for RETN gene; rs2274907 (326A/T) for ITLN1 gene; rs1319501 (G-948T), rs2302559, rs1215113036, rs11977021 (−3187G>A), rs4730153, and rs9770242 for PBEF1 gene; rs7799039 (G2548A), rs2167270 G>A, rs12112075 (G-2548A) for LEP gene; rs696217 (+408C>A, c.214G>T, p.Leu72Met), rs27647 (A-604G) for GHRL gene. The missense variant rs376423879 in the SCT gene was the only variant that has been studied in association with overweight. The contribution of gene variants to the development of obesity, metabolic disorders, and CVD depends on many factors, including lifestyle, nutrition, and other genetic and environmental factors. For a more accurate understanding of the role of the genes presented in the review, more research is needed in different populations, both in terms of the nature of the variation of genes predisposing to diseases associated with overweight, dyslipidemia, and atherosclerosis and in terms of the characteristics of their phenotypic manifestation.
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Regulatory Relationships between DNA Methylation and Long Non- coding RNAs in Neuroblastoma
Authors: Yuan Fang, Fei Xu, Rui Dong, Lian Chen and Yizhen WangAvailable online: 23 April 2025More LessObjectivesNeuroblastoma (NB) is a prevalent pediatric solid malignancy associated with significant morbidity and mortality, largely driven by epigenetic alterations. This review aims to identify novel biomarkers related to long non-coding RNAs (lncRNAs) and DNA methylation in NB to enhance prognostic capabilities.
MethodsWe conducted a detailed analysis of the interplay between lncRNAs and DNA methylation in NB, focusing on regulatory variations and their implications for disease progression. Key lncRNAs, including GTL2/MEG3, DALI, NBAT-1, and DLX6-AS1, were examined for their regulation by DNA methylation through cis- and trans-methylation mechanisms.
ResultsThere are clinical and biological implications of lncRNAs in NB and related cancers. Notably, GTL2 and its alias MEG3 are implicated in tumorigenesis through epigenetic modifications, such as hypermethylation, leading to the loss of gene expression and aggressive tumor behavior. Similarly, the interactions of DALI with adjacent genes illustrate the crucial role lncRNAs play in neuronal differentiation and tumor progression, suggesting their potential to impact prognosis through regulatory effects. Furthermore, NBAT-1 emerges as a promising tumor suppressor with strong correlations to NB prognosis, where its methylation-induced silencing is associated with negative outcomes. DLX6-AS1 is also linked to increased NB risk, with expression patterns correlating to disease stage and survival rates; however, more extensive survival data are required to establish its prognostic value.
ConclusionThis review highlights the potential of lncRNAs as prognostic indicators in NB, emphasizing the need for further research to elucidate their roles and validate them as biomarkers for improved patient outcomes.
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Exploring Therapeutic Strategies against Monkeypox Virus Through Network Pharmacology and Bioinformatics Analysis
Authors: Zafer Saad Al Shehri, Faez Falah Alshehri and Abdur RehmanAvailable online: 23 April 2025More LessIntroductionThe emergence of the monkeypox virus (MPXV) as a zoonotic threat has necessitated the development of effective treatments, particularly after it spread to regions outside of Central and Western Africa, such as the 2003 outbreak in the United States. Our groundbreaking study identifies CDK1 and TOP2A as key proteins in the pathogenesis of MPXV infection, utilizing network pharmacology to target these proteins for the first time. CDK1 and TOP2A, previously known for their roles in cell reprogramming, emerge as critical targets in our strategy to combat the virus.
MethodsBy targeting CDK1 and TOP2A, proteins integral to cell reprogramming, with small molecules identified in our study, such as carnosic acid, rosmarinic acid, and coclaurine, we propose a novel method not only to inhibit the replication of the monkeypox virus but also to harness cellular plasticity for therapeutic purposes. The identification and targeting of these proteins with specific compounds disrupt the virus's life cycle and simultaneously enhance the efficiency of cell reprogramming.
ResultsThis dual-action approach leverages the inherent plasticity of cellular reprogramming processes to combat the virus, showcasing a pioneering step in the use of regenerative medicine principles for antiviral strategies. Moreover, molecular docking and dynamic simulations strengthen our findings by demonstrating a strong binding affinity between TOP2A and CDK1, validating the synergistic effects of our identified small molecules.
ConclusionOur research thus opens new avenues for addressing viral threats like monkeypox, utilizing the convergence of virology, network pharmacology, and cellular reprogramming to pave the way for innovative treatments.
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Erbin Inhibited Angiogenesis in vitro with the Inhibition on the STAT3 Pathway in Breast Cancer Cells
Authors: MingZhen Zhao, HaiLan Xu, Yu Sun, XinYang Li, LingLing Wang, Xing Zhao, Die Mu, YaLei Li and LiXin SunAvailable online: 23 April 2025More LessBackgroundAngiogenesis plays an important role in progression of tumors including breast cancer, which accounts for the vast majority of women's malignant tumors globally, to meet the excessive requirement of oxygen and nutrition for growth, metastasis, and invasion of the tumor. Therefore, targeting tumor angiogenesis has turned into a significant target for cancer therapy. Erbin has a significant effect on the initiation and progression of cancer, including breast cancer, but its role in inhibiting vascular endothelial cell proliferation and angiogenesis by breast cancer cells remains unclear.
MethodsIn this study, human SKBR3 and MCF-7 breast cancer cells were used and transfected with the plasmid and siRNA for overexpression and silence of Erbin, respectively. Western blot, qRT-PCR, CLEIA, CCK-8 and Matrigel Tube Formation Assay were used for the proteins detection, mRNAs detection, detection of VEGF in the culture supernatants, detection of cell proliferation and detection of the angiogenic ability of HUVECs in vitro, respectively.
ResultsIt was shown that the expression of both Erbin protein and mRNA in SKBR3 cells was lower compared to that in MCF-7 cells (p < 0.05). While the expression of VEGF protein was higher in SKBR3 cells than that in MCF-7 cells (p < 0.05). Furthermore, the VEGF protein and mRNA in the cells, VEGF protein in the culture supernatant, HUVEC proliferation in the conditioned medium at 16 h and 24 h, the total length of tube formation in the conditioned medium, and pSTAT3 protein in the cells, were downregulated by transfection of Erbin gene in SKBR3 cells and upregulated (excluding HUVEC proliferation at 16 h) by transfection of Erbin siRNA in MCF-7 cells compared with their NC cells (p < 0.05).
ConclusionIt can be concluded that Erbin, with inhibiting the STAT3 pathway, suppresses the proangiogenic effects of breast cancer cells, thereby suggesting its potential as a therapeutic target for breast cancer.
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Research Progress on the Application of Ultrasound Assistance in Tumor Immunotherapy
Authors: Lu Yao Fan, Hui Yu, Li Wen Cui and Zhi Yong ShenAvailable online: 18 April 2025More LessRecently, ultrasound (US)-assisted tumor immunotherapy has attracted widespread attention due to its deep penetration as well as its non-invasive and non-ionizing radiation properties. In this review, we briefly elucidated the mechanisms of anti-tumor immunotherapy assisted by the US. The contents include the following: the mechanical effects, thermal effects, and cavitation effects of US, sonodynamic therapy, US combined with programmed cell death protein 1 / programmed cell death 1 ligand 1 antibodies, US-enhanced chimeric antigen receptor T cell immunotherapy, cell pyroptosis and US, US combined with radiotherapy, US combined with glycolysis inhibition, and the use of various US-modulated signaling pathways to enhance tumor immunity. This review provides a broad overview of the mechanisms and roles of US assistance in tumor immunotherapy.
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Protective Effects of Ginsenosides on Drug-induced Cardiotoxicity: A New Therapeutic Approach with Focus on Molecular Mechanisms in Cardio-oncology Field
Available online: 17 April 2025More LessPanax ginseng (PG), a staple in traditional medicine in Korea and China, holds a rich history of application for various diseases. Notably, its primary active components, ginsenosides, exhibit diverse therapeutic effects. Chemotherapy-induced side effects pose significant challenges to the treatment outcomes of cancer patients. Current strategies for managing the adverse effects of chemotherapy exhibit limited efficacy and have the potential to induce various detrimental side effects. In the realm of complications, cardiotoxicity poses a serious threat, ranking as the second major contributor to illness and death in individuals suffering cancer. It is linked to various cellular mechanisms such as oxidative stress, inflammation, apoptosis, autophagy, endoplasmic reticulum stress, and aberrant myocardial energy metabolism. Both in vivo and in vitro experiments confirm that ginsenosides undeniably present non-toxic and efficacious alternatives for addressing chemotherapy-induced side effects, including cardiotoxicity, neurotoxicity, nephrotoxicity, hepatotoxicity, immunotoxicity, and hematopoietic inhibition. Hence, there is a need to produce novel and potent drugs sourced from natural, non-toxic compounds to address the side effects induced by chemotherapy. The emphasis should be on the underlying mechanisms targeting mentioned cellular pathways. In this comprehensive review, we consolidate current knowledge and summarization with this aim and shed light on the future research of PG in cardio-oncology.
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Mechanisms and Characteristics of Chronic Pain in Alzheimer’s Disease: A Narrative Review
Authors: Roman Konovalov, Mina Aubakirova and Dmitriy VidermanAvailable online: 15 April 2025More LessAlzheimer’s disease is a neurodegenerative illness that significantly diminishes patients’ quality of life. Chronic pain remains a major contributor to exacerbating patients’ well-being. This comprehensive review aims to explore the mechanisms underlying pain perception in AD as well as identify potential targets and future considerations for pain relief. AD causes structural and functional alterations in the affected brain, including shrinkage of gray matter volume and disruptions in brain network connectivity. Besides memory loss, pain is a significant yet often neglected symptom. Effective pain management in AD is challenged by the adverse effects of pain-relief medications and communication difficulties, especially as the disease progresses. Both non- and pharmacological interventions are currently used to alleviate pain in AD. Pharmacological options include opioids, nonsteroidal anti-inflammatory drugs, paracetamol/acetaminophen, and adjuvant pain relievers like antidepressants and antiepileptic medications, though these are not officially approved for pain relief in AD. Non-pharmacological strategies, such as exercise therapy, music therapy, Reiki, reflexology, and behavioral therapy, are preferred to prevent the side effects of medication. However, the use of these methods is limited due to a lack of high-quality research. The review highlights a crucial link between neurological changes in AD and the perception of pain, underscoring the need for customized pain management approaches for this population. Emphasizing non-pharmacological interventions could potentially improve pain management in AD patients, provided that further research supports their effectiveness.
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lncRNAs and circRNAs: Emerging Players in Pediatric Medulloblastoma Pathology
Authors: Ozal Beylerli, Elmar Musaev, Tatiana Ilyasova and Albert SufianovAvailable online: 15 April 2025More LessMedulloblastomas (MBs) are the most common malignant brain tumors in children, marked by aggressive growth, molecular heterogeneity, and a high propensity for cerebrospinal dissemination. Despite advancements in conventional treatments - surgery, chemotherapy, and radiation therapy—substantial challenges persist, including debilitating long-term toxicities and emerging resistance to therapy. This review examines the multifaceted roles of non-coding RNAs (ncRNAs) - particularly long non- coding RNAs (lncRNAs) and circular RNAs (circRNAs) - in pediatric medulloblastoma pathogenesis, diagnosis, and therapeutic targeting. NcRNAs exert robust regulatory effects on gene expression by modulating signaling pathways, acting as miRNA sponges, and controlling the expression of oncogenic or tumor-suppressive genes. In this study, we focus on notable examples of lncRNAs (e.g., HOTAIR, TP73-AS1) and circRNAs (e.g., circ-SKA3, circ_63706) implicated in fundamental oncogenic processes, such as cell proliferation, apoptosis, metastasis, and stem cell maintenance. We also discuss their subgroup-specific roles, emphasizing high-risk groups, such as Sonic Hedgehog (SHH) and Group 3 medulloblastomas. In parallel, we explore the potential of ncRNAs to serve as diagnostic/prognostic biomarkers, given their tissue-specific expression, stability, and detectability in biological fluids like the Cerebrospinal Fluid (CSF). Finally, we review emerging therapeutic strategies, including antisense oligonucleotides, RNA sponges, and CRISPR-based editing, aimed at disrupting oncogenic ncRNA functions or reinforcing tumor-suppressive pathways. While these strategies hold promise, major hurdles include functional redundancy, optimizing in vivo delivery, and mitigating off-target effects. By detailing these challenges and outlining future research directions, this review underscores the revolutionary potential of ncRNA-focused diagnostics and therapies for managing pediatric medulloblastomas, offering new paths for improving survival outcomes and quality of life in affected children.
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TGF-β: The Molecular Mechanisms of Atherosclerosis - insights into SMAD Pathways and Gene Therapy Prospects
Available online: 15 April 2025More LessAtherosclerosis, a leading cause of global morbidity and mortality, is characterized by plaque formation resulting from the accumulation of fibrous elements, lipids, and calcification in arteries, leading to complications such as ischemic stroke, coronary artery disease, and myocardial infarction. Traditional treatments primarily address symptoms but fail to target underlying causes, prompting exploration of novel approaches like gene therapy. The TGF-β family, encompassing TGF-β1, TGF-β2, and TGF-β3, plays a critical role in cellular processes including proliferation, apoptosis, and migration, with its dysregulation strongly linked to cardiovascular diseases. In atherosclerosis, TGF-β influences key factors, such as macrophage cholesterol regulation, plaque stability, and vascular smooth muscle cell function, while also contributing to endothelial dysfunction-an early stage in disease development. Personalized medicine has highlighted the importance of tailoring therapies to genetic profiles, particularly regarding TGF-β pathway variations such as SNPs in TGF-β1 and TGFBR2, which could inform more precise interventions. Emerging technologies like CRISPR-Cas9 and RNA-based therapies enable targeted modulation of these genetic factors, offering new avenues to mitigate disease progression. CRISPR-Cas9 allows direct editing of gene loci linked to atherosclerosis, potentially correcting mutations or modulating expression levels, while RNA-based therapies, including siRNAs and antisense oligonucleotides, provide additional precision tools for addressing dysregulated genes. This review focuses on identifying key genes and additional molecular players involved in or regulated by the TGF-β pathway that may serve as precise targets for gene therapy intervention in atherosclerosis and related cardiovascular diseases. By targeting genes involved in cholesterol metabolism, inflammation, and endothelial function, gene therapy offers a targeted strategy to ameliorate the genetic drivers of these conditions. In summary, modulation of TGF-β signaling by gene therapy has the potential to revolutionize the treatment of atherosclerosis and other cardiovascular diseases while shedding light on the underlying genetic mechanisms of these disorders.
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COL4A1 Promotes Gastric Cancer Progression by Regulating Tumor Invasion, Tumor Microenvironment and Drug Sensitivity
Authors: Xiaojun Qian, Wei Jia, Yuntian Li, Jian Chen, Jinguo Zhang and Yubei SunAvailable online: 07 April 2025More LessBackgroundCollagen type IV alpha 1 chain (COL4A1), which has been proven to be a potential biomarker in Gastric Cancer (GC), but its role in tumors and the tumor microenvironment (TME) needs further explanation.
MethodsWe analysed the relationship between COL4A1 and clinical characteristics based on The Cancer Genome Atlas (TCGA) database and verified by tissue microarrays as well as GC cell lines using immunohistochemistry, Q-PCR, Western blot, cell proliferation assays, colony formation assays, cell invasion and migration assays. The immune infiltration and drug sensitivity information between high and low COL4A1 expression were analysed by R package and pRRophetic package. Finally, we established a nomogram based on COL4A1 expression using the bootstrap method.
ResultsCOL4A1 was overexpressed in gastric carcinoma compared with normal gastric tissue, indicating a poor prognosis of GC patients in the TCGA database which were also validated by GC tissue microarrays. GO, KEGG and hallmark enrichment analyses indicated that COL4A1 was mainly associated with the extracellular matrix than malignant proliferation. By siRNA transfection, we found that COL4A1 knockdown inhibited cell colony formation, invasion and migration but did not affect cell proliferation, similar to previous results. Immune infiltration and drug sensitivity analysis showed that COL4A1 was negatively correlated with antitumor immunity and positively correlated with multidrug resistance. By developing a nomogram model based on 8 risk factors, including COL4A1, patients with better clinical outcomes could be accurately distinguished.
ConclusionCOL4A1 is identified as a prognostic marker and potential therapeutic target in gastric cancer. Its overexpression correlates with poor prognosis, tumor invasion, and immunosuppression. A nomogram based on COL4A1 can predict patient outcomes. Future research should validate these findings and explore targeted therapies.
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Development of Potential Pharmacological Targets to Normalize Gene Expression in Islets of Type 2 Diabetic Patients
Available online: 07 April 2025More LessBackgroundType 2 diabetes (T2D) is a disease of high prevalence that is expected to continue increasing despite the pharmacological treatments available; in most cases, it is difficult to control. Therefore, more research on experimental drugs is necessary to propose better treatments.
ObjectiveThis study aimed to identify the molecular alterations of pancreatic islets in type 2 diabetes through multi-omics data integration and possible pharmacological targets using bioinformatics methods.
MethodsIn this study, the OmicsNet tool was used to integrate the multi-omics data associated with T2D, and the protein-protein interaction was visualized. Then, gene ontology and KEGG pathways analyses were carried out. Using the DrugRep server, the hub genes obtained underwent a virtual screening with experimental drugs, and twelve experimental drugs were selected to execute the molecular docking by CB-Dock2. Finally, the interactions were displayed in BIOVIA software.
ResultsOur results showed that the main molecular alterations of pancreatic islets in T2D were enzyme binding, mitochondrial metabolism, transcription factors, etc. They were involved in glucose uptake, receptor insulin signaling, and secretion. The molecular docking showed that SRC, AKT1, CREBBP, and HSP90AA1 were therapeutic targets for DB02729, DB04877, DB07970, DB07789, and DB03373.
ConclusionWe identified some alterations in the pancreas of patients with T2D, ten hub genes, and five experimental drugs that could potentially correct gene expression abnormalities. However, further studies are required to validate these results.
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In Silico ADMET Studies, Molecular Docking and Molecular Dynamics Simulation of Thiadiazole Derivatives for the Identification of Putative HsaA Monooxygenase Inhibitors
Available online: 03 April 2025More LessIntroductionThe rise of drug-resistant strains of Mycobacterium tuberculosis (Mtb) represents a substantial public health challenge. Current TB treatments involve the combination of several antibiotics and other agents. However, the development of drug resistance, reduced bioavailability, and elevated toxicity have rendered most of the drugs less effective.
MethodsTo resolve this problem, the identification of novel anti-tuberculosis agents with novel mechanisms of action is the need of the hour. HsaA monooxygenase is an enzyme involved in cholesterol metabolism, particularly in certain strains of Mycobacterium bacteria. This research focuses on discovering new inhibitors for HsaA from a pool of 40 compounds using computational techniques like molecular docking and Molecular Dynamics (MD) simulations along with comparing it with GSK2556286.
ResultsDocking studies revealed that AK05 and AK13 showed good binding affinity as compared to GSK2556286. The docking scores of AK05, AK13, and GSK2556286 are -9.4, -9.0, and -8.9 kcal/mol, respectively. ADMET studies showed that these thiadiazole derivatives can be investigated as lead molecules for the development of novel antituberculosis drugs. MD simulation studies showed that both of the compounds AK05 and AK13 were stable at the binding site with RMSD below 0.25 nm.
ConclusionAll these findings demonstrated that AK05 and AK13 could be used as potent compounds for the development of HsaA monooxygenase inhibitors.
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Immunogenic Cell Death-relevant Molecular Patterns, Prognostic Genes, and Implications for Immunotherapy in Ovarian Cancer
Authors: Pijun Gong, Jia Li, Yinbin Zhang and Shuqun ZhangAvailable online: 03 April 2025More LessBackgroundOvarian cancer (OV) is one of the deadliest gynecologic cancers, and approximately 75% of serous ovarian cancer (SOC) patients are diagnosed at advanced stages due to the lack of effective biomarkers.
ObjectiveImmunogenic cell death (ICD) has been investigated in many comprehensive studies, and the role of ICD in ovarian cancer and its impact on immunotherapy is not yet known.
MethodsThe NMF clustering analysis was employed to categorize OV samples into different subgroups. Survival, mutation, and CNV analyses were performed in these clusters. ESTIMATE, CIBERSORT, TIDE, and drug sensitivity analyses (based on GDSC) were also performed on the subtypes. Then, differentially expressed immunogenic cell death genes (DE-ICDGs) in OV were obtained by crossing the DEGs between cluster3 vs. cluster1, DEGs from the TCGA-GTEx dataset, and DEGs from the GSE40595 dataset. Functional enrichment analysis of DE-ICDGs was then performed. The signature genes related to the prognosis of OV in three OV datasets were excavated by drawing Kaplan-Meier curves. Finally, quantitative real-time PCR (qRT-PCR) was performed to verify the expression trends of the signature genes.
ResultsThe NMF clustering analysis categorized OV samples into three distinct groups according to the expression levels of ICDGs, with differential analysis indicating that Cluster3 represented the subgroup with high ICD expression. Mutation and CNV analysis did not differ significantly between clusters, but Amp and Del's numbers did. Immuno-infiltration analysis revealed that cluster3 showed significant differences from cluster1 and cluster2. Immunotherapy and drug sensitivity analysis showed differences in immunotherapy and chemotherapy sensitivity between the clusters. The DEGs in cluster3 vs. cluster1, TCGA-GTEx dataset and GSE40595 dataset were intersected to obtain a total of 71 DE-ICDGs, and functional enrichment result suggested that the DE-ICDGs were significantly correlated with inflammatory response, complement system and positive regulation of cytokine production. 2 DE-ICDGs (FN1 and LUM) were identified that were associated with OV prognosis and were validated significantly down-regulated in the SOC group with PCR.
ConclusionWe identified ICD-associated subtypes of OV and mined 2 OV prognostic genes (FN1 and LUM) associated with ICD, which may have important implications for OV prognosis and therapy.
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Decoding Colorectal Cancer: Key Genes and Pathways in the Chinese Population Revealed
Authors: Dongbing Li and Guizhen LyuAvailable online: 03 April 2025More LessBackgroundAs the leading cause of cancer-related deaths globally, colorectal cancer (CRC) ranks third in prevalence. Gene Expression Omnibus (GEO) offers clinicians and bioinformaticians an accessible platform for genomic research across various cancer types, with a particular emphasis on CRC.
ObjectiveWe aim to uncover key genes and pathways in the Chinese CRC population.
MethodsWe identified differentially expressed genes (DEGs) in CRC utilizing four microarray datasets sourced from the GEO database, all specifically from the Chinese population. Functional enrichment analysis was conducted to uncover the molecular mechanisms at play in CRC. The PPI network and CytoHubba tools were employed to identify key genes linked to CRC, with further validation through databases such as Gene Expression Profiling Interactive Analysis (GEPIA), ONCOMINE, and the Human Protein Atlas (HPA).
ResultsOur analysis identified 188 DEGs with overlapping significance, comprising 97 up-regulated and 91 down-regulated genes. Gene Ontology (GO) analysis indicated that up-regulated DEGs were predominantly involved in the extracellular space. In contrast, the down-regulated ones were linked to bicarbonate transport and extracellular exosomes. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis highlighted the involvement of up-regulated DEGs in cytokine-cytokine receptor interactions and the TNF signaling pathway. In contrast, the down-regulated genes were associated with nitrogen metabolism and bicarbonate reclamation in the proximal tubule. Notably, the transcriptional levels of CCL20, CDC20, CXCL1, CXCL2, CXCL5, NEK2, and PPBP were elevated in CRC tissues compared to normal tissues. In addition, CXCL12 showed a decreased expression. Additionally, the translational levels of CDC20 and PPBP were found to be higher in CRC tissues.
ConclusionEight genes (CCL20, CDC20, CXCL1, CXCL12, CXCL2, CXCL5, NEK2, and PPBP) were identified as potential diagnostic indicators for CRC. The identified pathways, such as cytokine-cytokine receptor interactions and TNF signaling, along with nitrogen metabolism and bicarbonate reclamation in the proximal tubule, are hypothesized to have a role in the genesis and progression of CRC. This study provides unique insights into the etiology and progression of CRC within the Chinese population.
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Target Selectivity of Cysteine Protease Inhibitors: A Strategy to Address Neglected Tropical Diseases
Available online: 25 March 2025More LessNeglected tropical diseases (NTDs) are a group of infectious diseases that mainly affect the population living in poverty and without basic sanitation, causing severe damage to countries' economies. Among them, Leishmaniasis, Chagas disease, sleeping sickness, and related diseases such as Malaria stand out, which, despite being well known, have limited treatments based on old drugs and have high rates of parasite resistance. In addition, current drugs have an uncertain mechanism of action, and there is a need to identify new mechanisms to overcome problems related to side effects and resistance. In a sense, exploring cysteine proteases (CPs) may be a promising alternative that can lead to discovering innovative drugs that may be useful against these diseases. However, exploring CPs in drug discovery should be a cautious and rational process since parasitic CPs show a high degree of homology with human CPs, raising the need to identify increasingly specific patterns of target selectivity to identify safer drugs with fewer side effects. Finally, in this review, we present the main aspects related to the design of CP inhibitor drugs, highlighting structural features of ligands and targets that can be used in the design of new compounds against Leishmaniasis (LmCPB), Chagas disease (Cruzain), sleeping sickness (rhodesain) and malaria (falcipain). We hope our findings can guide researchers in searching for an innovative drug that can be used against these diseases that threaten the world population's health.
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Identification of a Protein-truncating Variant in SCAPER Gene Causing Syndromic form of Intellectual Disability
Available online: 25 March 2025More LessBackgroundIntellectual disability (ID) is characterized by impairments in cognitive functioning and adaptive behavior. Globally, it affects 1-3% of the general population, with an increased prevalence in consanguineous families. It is a clinically heterogeneous disorder that can manifest as a variable phenotype. Intellectual developmental disorder and retinitis pigmentosa (IDDRP) is a rare syndrome in which patients present with both ID and retinitis pigmentosa.
Aims and ObjectivesThis study examined a consanguineous family to identify disease-associated pathogenic mutations and elucidate their potential functional impact in patients with IDDRP.
MethodologyClinical assessment of the patients revealed characteristics consistent with both intellectual disability (ID) and retinitis pigmentosa. Individuals affected by IDDRP were subjected to whole exome sequencing (WES), and the identified candidate pathogenic variants were validated by Sanger sequencing. Computational analyses were conducted to evaluate the impact of these mutations on the protein structure and function.
ResultsWES identified a protein-truncating variant, c.2605A>T (p.Lys869Ter), in the S-phase cyclin A-associated protein in the endoplasmic reticulum (SCAPER) gene. SCAPER has previously been reported to cause IDDRP. In silico analyses revealed structural and interactional alterations in the SCAPER protein. This variant is novel in the Pakistani population and has not been previously reported. This variant exhibits an autosomal recessive mode of inheritance and segregates among the investigated affected and unaffected family members.
ConclusionThe present study expands the spectrum of disease-causing variants in SCAPER and will contribute to a better understanding of the genetic etiology of IDDRP.
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The Protective Effects of Ferula assa-foetida L. oleo-gum Resin on Diabetic Neuropathy in Animal Models
Available online: 18 March 2025More LessBackgroundFerula assa-foetida L. has traditionally been used to treat various diseases, including infections, asthma, stomach aches, and flatulence. Previous studies have highlighted its anti-inflammatory, anti-oxidative, anti-diabetic, neuroprotective, and nerve-stimulating properties.
ObjectiveThis study aimed to evaluate the therapeutic effects and molecular mechanisms of action of the oleo-gum resin from Ferula assa-foetida L. in an animal model of diabetic neuropathy (DN).
MethodsThe essential oil of oleo-gum resin from Ferula assa-foetida L. was analyzed using Gas Chromatography-Mass Spectrometric Analysis. Forty-two male Wistar rats were included in the study, with diabetes induced via streptozotocin (STZ) injection. The rats were randomly assigned to seven groups (n=6 per group) and treated with different doses of Ferula assa-foetida L. extract (100, 200 mg/kg/day) or oil (10, 20 mg/kg/day), alongside appropriate control groups. After a five-week treatment period, samples of dorsal root ganglia (DRG), pancreatic tissue, and blood were collected. Key parameters assessed included blood glucose and insulin levels, motor function tests, oxidative stress protein generation, pro-inflammatory cytokine gene expression, and histopathological analyses.
ResultsTreatment with various doses of Ferula assa-foetida L. extract or oil, as well as gabapentin, led to significant improvements. These included reduced blood sugar levels, increased insulin levels, and improved glycemic control. Motor function was enhanced, while the expression of pro-inflammatory cytokines and oxidative stress markers was significantly reduced.
ConclusionThese findings indicate a promising therapeutic approach for managing DN. Further studies are warranted to elucidate the underlying mechanisms of Ferula assa-foetida L.'s beneficial effects in DN.
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Prognostic Role of Global DNA Methylation in Renal Cancer Reveals Decitabine Treatment Benefit
Authors: Wei Wu, Bin Huang, Peng Xia, Quanzhong Liu, Jin Yi, Ruohan Zhang and Qianghu WangAvailable online: 12 March 2025More LessBackgroundRenal cancer presents a significant global health challenge due to its rising incidence and mortality rates. Often undetected in early stages, it complicates diagnosis and treatment. Current therapies face resistance and limited effectiveness, especially in advanced stages. The diverse subtypes of renal cancer highlight the need for new biomarkers and risk assessment tools for targeted treatments.
ObjectiveThis study aims to assess the prognostic significance of global DNA methylation (GM) levels in renal cancer, identify new biomarkers, and evaluate the therapeutic potential of the DNA methyltransferase inhibitor decitabine.
MethodsData on RNA sequencing, gene mutations, DNA methylation, and clinical outcomes were collected from TCGA and GEO databases. We calculated global DNA methylation scores (GMS) and categorized patients into high, intermediate, and low GMS groups. Survival analysis and genomic analyses were conducted to explore the relationships between GMS, clinical outcomes, and tumor characteristics.
ResultsHigher GMS was identified as an independent prognostic factor associated with worse outcomes in renal cancer. Patients with elevated GMS showed increased mutations, copy number variations, and a more aggressive tumor phenotype. Treatment with decitabine was observed to reduce tumor hypermethylation and downregulate cell cycle pathway activity, indicating potential therapeutic benefits.
ConclusionGlobal DNA methylation plays a significant role in renal cancer prognosis. GMS may serve as valuable biomarkers for prognosis and personalized treatment strategies. Decitabine shows potential efficacy for high GMS patients, particularly through its impact on cell cycle regulation, underscoring the importance of personalized approaches in cancer treatment.
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Near-infrared (NIR) Fluorophores in Cancer Bioimaging and Therapy
Authors: Libo Yan, Weiming Zhang, Daogang Wang, Min Zhang, Ning Xu, Mengzhe Yang and Tao RenAvailable online: 12 March 2025More LessThe development of multiple fluorescent agents has contributed to cancer diagnosis and therapy. Near-infrared (NIR) dyes have already been well studied and displayed significant potential in cancer bioimaging and therapy due to their unique characteristics. In the present literature, we illustrated the updated NIR classification and characteristics as well as their applications in (pre-) clinical cancer imaging and treatment. The NIR-based photodynamic therapy (PDT) and photothermal therapy (PTT) were also discussed, including their present limitations. Taken together, the future development of NIR fluorophores would greatly improve cancer precision diagnosis and targeted therapy as one of the promising approaches in this field.
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The Role of MicroRNAs in Mitochondrial Homeostasis and their Involvement in the Pathogenesis of Obesity and Metabolic Syndrome: A Focus on MicroRNAs
Available online: 07 March 2025More LessThe maintenance of the functional potential of mitochondria is directly related to epigenetic factors, microRNAs (miRs), and mitomicroRNAs (mitomiRs). An important role in the development of metabolic syndrome (MetS)/obesity is attributed to miRs, which have pro-inflammatory or anti-inflammatory potential and can penetrate the mitochondrial matrix. Deciphering the mechanisms responsible for the transport of miRs into the mitochondria would, we believe, allow us to use the knowledge obtained to build designs for the transport of drugs/mitomiRs into cells/mitochondria with low toxicity. A thorough understanding of the polyfunctionality/versatility of individual mitomiRs in specific cells (cell cultures, tissues: adipocytes, brain cells) will allow targeting cellular metabolism to comprehensively block the central link in disease pathogenesis with low potential side effects of this treatment. In this review, we have attempted to identify the key miRs/mitomiRs associated with MetS that affect mitochondrial function. In our opinion, further research should focus specifically on the miR/mitomiRs described here and further investigate their potential in the development of MetS and its components.
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Development of an Inflammation-related Gene-based Diagnostic Risk Model and Immune Infiltration Analysis in Bipolar Disorder
Available online: 05 March 2025More LessObjectiveThis study aimed to construct a diagnostic risk model for Bipolar Disorder (BD) using inflammation-related genes (IRGs) and to explore the role of immune cell infiltration in BD pathogenesis.
MethodsBD datasets (GSE23848, GSE124326, GSE39653, and GSE46449) were retrieved from the Gene Expression Omnibus (GEO) database. Differentially expressed genes (DEGs) were identified using the edgeR package. The intersection of DEGs and IRGs was defined as differentially expressed IRGs. A LASSO regression model was used to identify optimal biomarkers, which were then utilized to construct a diagnostic risk model. Receiver operating characteristic (ROC) curves were used to evaluate the diagnostic accuracy of the biomarkers. Internal validation was performed with GSE124326, while external validation utilized GSE23848, GSE39653, and GSE46449. The xCell module in the IOBR package was employed to assess immune cell infiltration proportions. The relationship between IRGs, the diagnostic risk model, and immune cell dynamics was further analyzed.
ResultsA total of 2345 DEGs were identified in GSE124326. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analyses indicated that inflammatory pathways are critically involved in BD pathogenesis. A total of 69 BD-related IRGs were identified. Six key IRGs (IL33, DNASE1L3, IL2RA, CD70, CLEC5A, and SLPI) were identified through LASSO regression analysis and used to develop a diagnostic risk model. Internal and external validations confirmed the robust diagnostic performance of the risk model. Immuno-infiltration analysis showed significant differences in immune cell infiltration between BD patients and healthy controls. The diagnostic risk model and four potential biomarkers (DNASE1L3, IL2RA, CD70, and SLPI) showed strong correlations with various immune cell types.
ConclusionA diagnostic risk model for BD was constructed based on IRGs, highlighting the critical role of immune cell infiltration in BD pathogenesis.
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HER3-targeting Antibody-drug Conjugates Therapy for Solid Tumors: Recent Advances and Future Potentials
Authors: Xuerui Wang, Linlin Zhao, Fangfang Gao, Yuan Meng, Jie Yang, Meiying Zhu, Dongying Liao, Yingjie Jia and Fanming KongAvailable online: 24 February 2025More LessIn most advanced cancers, standard medical treatments are generally employed. With the emergence of Antibody-Drug Conjugates (ADCs), more optimal therapeutic methods have become available for treating tumors. ADC is composed of a monoclonal antibody that targets a specific antigen and a cytotoxic payload, which conjugates via the synthetic linkers. Therefore, ADC combines the accurate targeting of monoclonal antibodies with the potent efficacy of cytotoxic chemotherapy drugs while circumventing systemic toxicity. Besides, the epidermal growth factor receptor (EGFR) family, expressing differently between tumors and normal tissues, is one of the most frequently targeted antigens for ADC therapy, which mainly encompasses EGFR1/ERBB1, human epidermal growth factor receptor 2/ epidermal growth factor receptor 2 (HER2/ERBB2), HER3/ERBB3, and HER4/ERBB4. In contrast to other targets, HER3 stands out as a promising one, closely associated with the pathogenesis of treatment resistance in several cancers. Moreover, solid tumors, which are more prevalent than hematological malignancies, present a vast field of opportunities for the development of HER3-targeting ADCs. However, research on HER3-targeting ADCs treating solid tumors remains insufficient. Therefore, it is imperative for researchers to gather more clinical trial data and continue to elucidate the efficacy and safety of HER3-ADCs in solid tumors. This review summarizes recent advances and future potentials, aiming to provide insights into targeted therapy. We hope that this review will provide useful information to physicians in the field.
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DDX59-AS1: A Novel Prognostic Biomarker and Immunotherapy Predictor in Lung Adenocarcinoma
Authors: Yanli Wang, Wei Li, Su Wei, Lixi Zhang, Dongbing Li and Xu QiAvailable online: 18 February 2025More LessBackgroundThe precise function of DDX59 Antisense RNA 1 (DDX59-AS1) in lung adenocarcinoma (LUAD) has yet to be fully elucidated.
ObjectiveThis study uses bioinformatics analysis and experimental validation to investigate the association between DDX59-AS1 and LUAD.
MethodsThis study uses statistical analysis and database interrogation to investigate the potential association between DDX59-AS1 expression and various clinical characteristics, prognostic factors, regulatory networks, and immune infiltration in LUAD. The quantification of DDX59-AS1 expression in LUAD cell lines is conducted through the use of quantitative real-time polymerase chain reaction (qRT-PCR).
ResultsDDX59-AS1 showed significantly elevated levels of expression in patients with LUAD. High levels of DDX59-AS1 expression were found to be significantly associated with poorer overall survival (OS) in patients with LUAD (p = 0.024). Furthermore, an independent correlation was observed between high DDX59-AS1 expression (p = 0.037) and OS in LUAD patients. DDX59-AS1 was found to be involved in various pathways, including glutathione metabolism, proteasome function, and the cytosolic DNA sensing pathway, among others. A significant correlation was observed between the expression levels of DDX59-AS1 and immune cell infiltration in the context of LUAD. Notably, elevated expression of DDX59-AS1 was observed in LUAD cell lines compared to the non-cancerous Beas-2B cell line.
ConclusionA significant correlation was observed between elevated DDX59-AS1 expression in patients with LUAD and adverse prognosis, alongside increased immune infiltration. These results indicate that DDX59-AS1 may function as a prognostic marker for LUAD and a potential predictor of immunotherapy response.
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The Pathophysiological Role of Mitochondria-associated Membranes in Coronary Artery Disease and Atherosclerosis
Authors: Junyan Zhang, Zhongxiu Chen, Li Rao and Yong HeAvailable online: 12 February 2025More LessMitochondria-associated membranes (MAMs) are pivotal in cellular homeostasis, mediating communication between the endoplasmic reticulum and mitochondria. They are increasingly recognized for their role in atherosclerosis and coronary artery disease (CAD). This review delves into the cellular perspective of MAMs' impact on atherosclerosis and CAD, highlighting their influence on disease progression and the potential for therapeutic intervention. MAMs are implicated in key pathophysiological processes such as the generation of reactive oxygen species, calcium homeostasis, myocardial ischemia-reperfusion injury, autophagy, lipid synthesis and transport, and energy metabolism—fundamental to the development and progression of atherosclerosis and CAD. The complex interplay of MAMs with these pathological processes underscores their potential as therapeutic targets. This review synthesizes current understanding and emphasizes the need for further research to elucidate the multifaceted roles of MAMs in atherosclerosis and CAD, offering avenues for developing novel strategies aimed at improving mitochondrial health and mitigating the impact of these conditions.
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The Role and Molecular Mechanism of Icaritin in the Treatment of Alzheimer's Disease
Authors: Chong-Bo Zheng, Li-Zhen Wu, Wan-Ying Song, Liang Luo, Jia-Ting Cai, Zhi-Hua Huang and Ke-Qiang TianAvailable online: 07 February 2025More LessAlzheimer's disease (AD), a degenerative disease of the central nervous system, affects approximately 70 million individuals worldwide. As the number of elderly in the population increases, the prevalence and incidence of AD are increasing annually. Although the drugs are currently used to alleviate certain cognitive symptoms, their overall therapeutic efficacy remains unclear. Consequently, there is significant societal demand for safe and effective therapeutic options. Icaritin (ICT), a bioactive compound derived from Epimedium brevicornu Maxim, has anti-apoptotic, antioxidant, anti-neuroinflammatory, anti-aging, and neuroprotective properties. In recent years, it has garnered significant interest because of its potential preventative and therapeutic effects in the context of AD. In this review, we analyze the therapeutic effects of ICT on AD, namely the inhibition of neuroinflammation, effects against oxidative stress and apoptosis, and promotion of cellular autophagy. The aim of this review was to provide a general reference for the research and development of new drugs, in particular ICT, for the prevention and treatment of AD.
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Achievements and Approaches in the Search for Small-Molecule Dengue NS2B/NS3 Inhibitors
Available online: 27 January 2025More LessWith the escalation of viral infections in recent decades, including the COVID-19 pandemic, viral infectious diseases have increasingly become a global concern, attracting significant attention. Among many viral epidemics, the dengue virus, an RNA virus from the Flaviviridae family, has been reported by the WHO as one of the most prevalent mosquito-borne diseases, infecting roughly 400 million people yearly and spreading across all continents worldwide. In the last two decades, researchers from academia and industry have diligently studied many aspects of the virus, including its structure, life cycle, potential therapeutic agents, and vaccines. Dengvaxia® and Qdenga®, approved vaccines for DENV-4, have been a milestone in dengue prevention and treatment. However, these vaccines have some noticeable drawbacks, including Dengvaxia® being a monovalent vaccine against DENV-4 with a risk of severe dengue infection following the first use, Qdenga® being mainly effective for all 4 serotypes only in the cases of previously infected patients while being effective against only DENV-1 and DENV-2 in dengue-naïve patients. Additionally, no drug against dengue has been approved. Thus, numerous screening campaigns have been conducted on both natural and synthesized substances to search for anti-dengue agents, especially those affing the virus's key protease (NS2B/NS3), to mitigate the dengue fever epidemic. As hit screening is only the first step in the drug discovery and development cycle, subsequent in-depth analyses (using a wide range of approaches from computational simulations to protein-ligand co-crystallization) have been conducted to provide more insights into the characteristics of optimal DENV NS2B/NS3 protease inhibitors. This review discusses recent discoveries in the search for novel inhibitors and highlights the importance of understanding the structural relationship between hits and the NS2B/NS3 protease for effective lead optimization.
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Advanced Pain Management in Patients with Terminal Cancer
Authors: Kamilla Khojayeva, Mina Aubakirova and Dmitriy VidermanAvailable online: 24 January 2025More LessUnderstanding and managing pain in patients with terminal cancer is a vital aspect of palliative care, aimed at relieving suffering and improving quality of life in the final stages of illness. Studies indicate that approximately 50% of patients with stage 4 cancer report moderate to severe pain, with a quarter experiencing severe cancer-related pain. Despite opioid prescriptions in 97% of cases, a significant portion of patients continues to suffer unresolved pain during the last week of life. Cancer-related pain is multifaceted, often involving nociceptive, neuropathic, and mixed elements, necessitating a thorough, multidimensional approach to both assessment and treatment. The challenge of opioid tolerance and the potential for addiction demands careful monitoring. Interventional therapies, including nerve blocks and spinal cord stimulation, are gaining attention as valuable complements or alternatives to opioid use. Additionally, alternative methods like yoga, special diets, and food supplements provide diverse options for managing pain. Psychological therapies, including cognitive-behavioral techniques and mindfulness, address the mental and emotional dimensions of pain. Emerging technologies, including artificial intelligence, hold promise for optimizing pain management in terminal cancer care. This review explores advanced pain management strategies, focusing on traditional opioid therapies, modern pharmaceutical innovations, and non-pharmacological approaches such as alternative medicine, massage, dietary interventions, and psychological therapy.
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Role of Glycolysis and Nitric Oxide Pathway Crosstalk in Macrophages in Atherosclerosis
Available online: 24 January 2025More LessAtherosclerosis is a complex multifactorial process that occurs in the vascular wall over many years and is responsible for a number of major diseases that affect quality of life and prognosis. A growing body of evidence supports the notion that immune mechanisms underlie atherogenesis. Macrophages are considered one of the key participants in atherogenesis, but their role in this process is multifaceted, which is largely due to the peculiarities of their cellular metabolism. Glycolysis is not only an important metabolic pathway in macrophages, but is also associated with their immune functions. Glycolysis in macrophages has complex regulatory pathways and is cross-linked with nitric oxide, which together determine the immune function of these cells. Thus, the immune and metabolic links underlying atherogenesis are of research and clinical interest in terms of their potential therapeutic opportunities.
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Recent Progress in Curcumin: Extraction, Purification, and Bioactivity
Authors: Hong-Mei Cao, Pei-Hong Zhao, Yi-Tao Zhao, Jiao-Jiao Fang, Ya-Nan Wang and Xin ChenAvailable online: 24 January 2025More LessCurcumin is a natural plant pigment that has been widely used in food production, drug development, and textile engineering. Gaining a deep understanding of the biological activities of curcumin and obtaining high-purity curcumin are of vital importance for basic research and applications of curcumin. In this review, we summarize recent advances in curcumin, mainly focusing on the methods of extracting and purifying curcumin from turmeric as well as applications based on biological activity. We systematically describe the advantages and disadvantages of traditional and modern extraction technologies. The usual purification methods include conventional methods (such as macroporous resin column chromatography and silica gel column chromatography, etc.) and auxiliary modern technologies (such as high-speed countercurrent chromatography and supercritical fluid chromatography). In terms of biological activity, the phenolic hydroxy group and methoxy group of curcumin are closely related to its antioxidant activity, endowing it with strong antibacterial, anti-inflammatory, and antitumor properties. Moreover, the development direction based on its multiple biological activities is also discussed.
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Gold Nanoparticles and Chitosan as Innovative Compounds in Medicine and Cosmetology: A Review of Current Applications
Available online: 06 January 2025More LessThe medical and cosmetic industries have developed in recent years, and there has been a growing demand for new materials. Gold nanoparticles (Au NPs) and chitosan (CS) have been known and used for many years. Unfortunately, despite their numerous advantages and possible applications, such materials may possess certain disadvantages and limitations that constitute a problem in medical or cosmetic applications. Au NPs may have potential toxicity depending on their size, shape, charge, surface coatings, and tendency to agglomerate into larger clusters. On the other hand, the CS production process requires strict control due to the possibility of uncontrolled hydrolysis or chemical modifications during polymer isolation. The combination of Au NPs and CS that differ in chemical and phase in one composite (Au NPs/CS) allows for acquiring of new material with many advantages. The obtained composite has good mechanical properties and is biocompatible due to the presence of CS and the antibacterial properties of Au NPs. Therefore, it can be successfully used in many branches of medicine, including gene delivery, cell encapsulation, wound healing process, or as a preservative ingredient of cosmetics. Moreover, Au/CS nanocomposites are used in the food industry and environmental protection. This review highlights the preparation routes, properties, and applications of Au NPs and CS as separate materials. Moreover, the last part presents the advantages of combining these two materials into one nanocomposite. Specifically, we described the role of CS in the synthesis of Au NPs and possible subsequent applications of such nanomaterials as an element of biosensors, scaffolds, and an intelligent drug release system or tissue engineering.
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Advancements in Structural Basis of Covalent Inhibitors Targeting SARS-CoV-2 Essential Proteins
Available online: 03 January 2025More LessCovalent inhibitors play a pivotal role in the development of pharmaceutical therapies, as they form stable, irreversible bonds with target biomolecules, leading to prolonged therapeutic effects and enhanced efficacy. Since covalent inhibitors first appeared in the late 1800s, the field has become innovative rapidly, and covalent inhibitors now account for around 30% of all marketed therapeutics. The severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes the pandemic of Coronavirus Disease 2019 (COVID-19). SARS-CoV-2 needs to be cured with a medicine that is beneficial and with the least side effects. It is necessary to formulate drug candidates to treat this pathogen. The predominance of covalent medications will be briefly discussed in this review, followed by an introduction to their methods of action, as well as more thorough discussions of the safe and effective covalent enzyme inhibitors against SARS-CoV-2. Our main concern is to study covalent inhibitors which are mainly involved in blocking the viral entry of the virus SARS-CoV-2 into the host cell along with its replication and translation process. In the development of anti-SARS-CoV-2 medicines researchers can use those reported drugs as prospective candidates.
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Interaction between microRNA and KRAS in Glioblastoma
Available online: 03 January 2025More LessGlioblastoma (GBM) characterized byits rapid progression and challenging prognosis, often featuring mutations in the Kirsten rat sarcoma virus (KRAS) gene, which is crucial for numerous cellular signaling mechanisms. Emerging research underscores a significant interaction between KRAS and microRNAs (miRNAs) in these cancers, with miRNAs playing key roles as both regulators and mediators within the KRAS signaling framework. The concept of oncogene-induced senescence (OIS) is explored as a protective mechanism against tumor development, examining how K-RAS signaling is meticulously adjusted to bypass senescence, thereby enhancing cell growth and survival. In this study, we identify certain miRNAs that directly impact KRAS through mRNA targeting or by influencing its downstream signaling cascades. In turn, pathways activated by KRAS can modify the levels of specific miRNAs, establishing a feedback loop that balances cell regulation and tumor progression. We propose a theoretical framework where these interactions are crucial for deciphering the molecular underpinnings of GBM, potentially paving the way for innovative treatment approaches that focus on the miRNA-KRAS connection.
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Anticancer and Cyclooxygenase Inhibitory Activity of Benzylidene Derivatives of Fenobam and its Thio Analogues
Available online: 16 December 2024More LessIntroductionA series of benzylidene derivatives of fenobam and its thio analogues (1-22) have been evaluated for their cytotoxicity against breast cancer (MCF-7, MDA-MB-231), ovarian cancer (A2780, SKOV-3) and cervical cancer (HELA) cell lines.
MethodThese compounds (1-22) exhibited 72-83% inhibition of Erk activity against the ovarian cancer cell line (A2780). Compounds 3 and 20 showed the highest DNA damage effect in Comet Assay against the A2780 cancer cell line as compared to the other tested analogues (4, 8, 11, 12, and 13) by using % Tail DNA and OTM. Compounds 3, 4, and 11 showed significant activities and selectivity towards COX-2 with 78%, 97%, and 89% inhibition, as compared to 17%, 57%, and 26% inhibition against COX-1 isoenzyme, respectively.
ResultsInterestingly, molecular docking scores were also in very good agreement with the experimental results regarding discriminating the selectivity index of the tested compounds against COX-1 & COX-2 enzymes. Further molecular dynamics (MD) simulation study revealed that the most selective compound, 13, binds with the COX-2 enzyme in a similar fashion to that of Rofecoxib, which was further supported by their MD-based free binding energies (MM-GBSA) of -49.76 ± 4.27 kcal/mol, and -44.84 ±3.78 kcal/mol, respectively.
ConclusionMoreover, in silico ADMET predictions showed adequate properties for these compounds, making them promising leads worthy of further optimization.
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