Biology/Life Sciences
Diminazene Aceturate (DIZE) Ameliorates Hypertension and Induces Anxiolytic- and Antidepressant-Like Effects in TGR(Mren2)27
Feb 2025
Fast Track Article
Journal Title:
Protein and Peptide Letters
Introduction Diminazene aceturate (DIZE) was described as an angiotensin-converting enzyme 2 (ACE2) activator. ACE2/Angiotensin-(1-7)/Mas receptor axis presents protective actions on cardiovascular diseases and plays an important modulatory role in the neurobiology of mood and anxiety disorders. Objectives To evaluate the effects of chronic intracerebroventricular (ICV) treatment with DIZE on blood pressure anxiety- and depression-like behaviors in hy Read More
miR-584-5p Regulates MSMO1 to Modulate the AKT/PI3K Pathway and Inhibit Breast Cancer Progression
Feb 2025
Fast Track Article
Journal Title:
Protein and Peptide Letters
Introduction Endogenous microRNAs (miRNAs) are critical regulators of tumor progression making their role in breast cancer an important area of investigation. Method This study examined the regulation of MSMO1 by miR-584-5p in breast cancer cells. Using bioinformatics and Western blotting we confirmed MSMO1 expression in breast cancer cells and evaluated its effects on cell migration invasion and the AKT signaling pathway. In vivo exp Read More
Inconsistent Protein Stability Despite Pre-HECT Domain Helix: Unveiling Variability in HECT Ligases
Feb 2025
Fast Track Article
Journal Title:
Protein and Peptide Letters
Introduction Ubiquitin and ubiquitin-like systems play crucial roles across a wide range of organisms from simple to complex. Among the three enzyme-mediated post-translational modification (PTM) steps the ligation step is the most critical. HERC5 a member of the HECT ligase family is one of the three enzymes involved in the ISGylation system. However the precise start points and lengths of the HECT domains in HECT ligases are still under debat Read More
Anti-Cancer Bioactive Peptide Induces Apoptosis in Gastric Cancer Cells through TP53 Signaling Cascade
Feb 2025
Fast Track Article
Journal Title:
Protein and Peptide Letters
Introduction Gastric cancer has emerged as one of the major diseases threatening human health. Our previous studies indicated that the anti-cancer bioactive peptide (ACBP) inhibits the initiation and progression of gastric cancer through apoptosis and cell cycle arrest yet the mechanisms remain unclear. To elucidate the relationships between the effects of ACBP and the levels of cell differentiation as well as the functional mechanisms of ACBP we c Read More
Molecular Interactions of the Antimicrobial Peptide Tritrpticin with Mixed Nanoaggregates: A Fluorescence Spectroscopy Study
Jan 2025
Fast Track Article
Journal Title:
Protein and Peptide Letters
Introduction Tritrpticin (TRP3) is a peptide belonging to the cathelicidin family and has a broad spectrum of antimicrobial activity. However this class of biomolecules can be easily degraded in the body making it necessary to use an efficient transport system. The ability to form stable nanostructures from the interaction of glycyrrhizin saponin with the pluronic polymer F127 was demonstrated forming mixed biopolymeric micelles highly promising as dru Read More
ZNF165: A Pan-Cancer Biomarker with Prognostic and Therapeutic Potential
Jan 2025
Fast Track Article
Journal Title:
Protein and Peptide Letters
Background The role of ZNF165 in only a few tumors has been reported. ZNF165 plays an important role in liver cancer gastric cancer and breast cancer especially in regulating the immune microenvironment promoting tumor cell proliferation and migration and serving as a potential target for immunotherapy. Objective This study aimed to enhance an understanding of how the ZNF165 gene functions and influences cancer development. Methods Using a Read More
MARVELD1 Promotes the Invasiveness in Pancreatic Adenocarcinoma through the Activation of Epithelial-to-Mesenchymal Transition
Jan 2025
Fast Track Article
Journal Title:
Protein and Peptide Letters
Background MARVEL domain-containing 1 (MARVELD1) has been implicated in the progression of several cancers but its role in pancreatic adenocarcinoma (PAAD) remains poorly understood. Methods RNA-seq data from the TCGA-PAAD and GTEx-Pancreas cohorts were analyzed to assess MARVELD1 expression. Stable MARVELD1 knockdown and overexpression were conducted in BxPC3 and PANC-1 cells. Cell viability proliferation migration and invasion we Read More
Amphibian-Derived Antimicrobial Peptides: Essential Components of Innate Immunity and Potential Leads for New Antibiotic Development
Jan 2025
Fast Track Article
Journal Title:
Protein and Peptide Letters
Like other vertebrates amphibians possess innate and adaptive immune systems. At the center of the adaptive immune system is the Major Histocompatibility Complex. The important molecules of innate immunity are antimicrobial peptides (AMPs). These peptides are secreted by granular glands in the skin and protect the animal against microorganisms entering its body through the skin. AMPs offer an effective and rapid defense against pa Read More
ZP3 Expression in Pancreatic Adenocarcinoma: Its Implications for the Prognosis and Therapy
Jan 2025
Fast Track Article
Journal Title:
Protein and Peptide Letters
Background The role of Zona pellucida glycoprotein 3 (ZP3) is unclear in pancreatic adenocarcinoma (PAAD). Objective This study aimed to explore the role of ZP3 in PAAD. Methods A comparative analysis of ZP3 gene expression was performed to discern differences between various types of cancer and PAAD leveraging data sourced from The Cancer Genome Atlas (TCGA). This study aimed to assess the role of ZP3 as a potential diagnostic marker for P Read More
Pro-fertility and Antioxidant Potentials of Vigna unguiculata (Cowpea) Protein Isolate and Essential Oil: An In vivo and In silico Studies
Jan 2025
Fast Track Article
Journal Title:
Protein and Peptide Letters
Introduction Vigna unguiculata (Cowpea) a legume rich in phytochemicals has been traditionally used to improve fertility and treat various ailments. This study used in-silico and in-vivo methods to evaluate the effects of cowpea protein isolate and essential oil on reproductive hormonal and antioxidant indices. Method Forty (40) female rats were divided into eight groups (n=5). After 14 days of treatment hormone levels (progesterone prolactin testostero Read More
Exploring New Structures of Kinase Inhibitors and Multitarget Strategies in Alzheimer's Disease Treatment
Jan 2025
Article
Source:
Protein and Peptide Letters
32,
pp 2
- 17
(2025)
Alzheimer's disease (AD) treatments currently available have ineffective results. Previously employed Acetylcholine esterase inhibitors and memantine an NMDA receptor antagonist target a single target structure that plays a complex role in the multifactorial progression of disease. Memantine moderates the toxic effects of excessive glutamate activity by blocking NMDA receptors which decreases neurotoxicity in AD while acetylcholine esterase inhibito Read More
Targeting APE1: Advancements in the Diagnosis and Treatment of Tumors
Jan 2025
Article
Source:
Protein and Peptide Letters
32,
pp 18
- 33
(2025)
With the emergence of the precision medicine era targeting specific proteins has emerged as a pivotal breakthrough in tumor diagnosis and treatment. Apurinic/apyrimidinic Endonuclease 1 (APE1) is a multifunctional protein that plays a crucial role in DNA repair and cellular redox regulation. This article comprehensively explores the fundamental mechanisms of APE1 as a multifunctional enzyme in biology with particular emphasis on its potential si Read More
Recombinant Production of Ib-AMP4 and Oncorhyncin II Antimicrobial Peptides and Antimicrobial Synergistic Assessment on the Treatment of Staphylococcus aureus Under In vitro Condition
Jan 2025
Article
Source:
Protein and Peptide Letters
32,
pp 34
- 43
(2025)
BackgroundMethicillin-resistant Staphylococcus aureus (MRSA) is a significant and prevalent pathogen that poses a major challenge in healthcare environments. In light of the growing threat posed by multidrug-resistant organisms like MRSA there is an urgent need for alternative therapeutic strategies. One promising avenue of research involves the use of antimicrobial peptides (AMPs). These naturally occurring molecules which are part of the in Read More
Leptin/Melanocortin Pathway in Cholelithiasis Patients: A Diagnostic Perspective
Jan 2025
Article
Source:
Protein and Peptide Letters
32,
pp 75
- 83
(2025)
BackgroundCholelithiasis is the most prevalent inflammatory condition of the gallbladder. The regulation of biological processes including energy homeostasis and control of body weight are key mechanisms that the leptin and melanocortin pathways play a role in Cholelithiasis is the most prevalent inflammatory condition of the gallbladder. There are various risk factors for the development of gallstone disease especially weight gain and obesity is just one o Read More
Overexpression of HIF2α Enhances the Angiogenesis-Promoting Effect of hUC-MSC-Derived Extracellular Vesicles by Stimulating miR-146a
Jan 2025
Article
Source:
Protein and Peptide Letters
32,
pp 62
- 74
(2025)
ObjectiveThis study aimed to explore whether excessive HIF2α can amplify the impact of human Umbilical Cord Mesenchymal Stem Cell-derived Extracellular Vesicles (hUC-MSC-EVs) on endothelial cells.MethodsIn this study we created HIF2α-overexpressing hUC-MSC-EVs and compared their pro-angiogenic effects with control EVs on Human Umbilical Vein Endothelial Cells (HUVECs). MTT assay and Edu staining were used to detect the viability and proliferatio Read More
Identifying the Role of Individual Seal IAPP Amino Acids in Inhibiting the Aggregation of Human IAPP
Jan 2025
Article
Source:
Protein and Peptide Letters
32,
pp 44
- 53
(2025)
IntroductionThe progression of type 2 diabetes in humans appears to be linked to the loss of insulin-producing β-cells. One of the major contributors to β-cell loss is the formation of toxic human IAPP amyloid (hIAPP Islet Amyloid Polypeptide amylin) in the pancreas. Inhibiting the formation of toxic hIAPP amyloid could slow if not prevent altogether the progression of type 2 diabetes. Many non-human organisms also express amyloidogenic IAPP variants kno Read More
Exploring the Regulatory Interaction of Differentially Expressed Proteins in Cleft Palate Induced by Retinoic Acid
Jan 2025
Article
Source:
Protein and Peptide Letters
32,
pp 54
- 61
(2025)
ObjectiveThis study aimed to identify novel proteins involved in retinoic acid (RA)-induced embryonic cleft palate development.MethodsThe palate tissues of the control and RA-treated E14.5 were dissected and subjected to iTRAQ-based proteomic analysis.ResultsDifferential expression analysis identified 196 significantly upregulated and 149 downregulated considerably proteins in RA-induced palate tissues. Comprehensive Gene Ontology and Kyoto Enc Read More
Exploring the Therapeutic Potential of Noncoding RNAs in Alzheimer’s Disease
Nov 2024
Article
Source:
Protein and Peptide Letters
31,
pp 862
- 883
(2024)
Despite significant research efforts Alzheimer's disease (AD) the primary cause of dementia in older adults worldwide remains a neurological challenge for which there are currently no effective therapies. There are substantial financial medical and personal costs associated with this condition. Important pathological features of AD include hyperphosphorylated microtubule-associated protein Tau the formation of amyloid β (Aβ) peptides from amyloi Read More
Immunoproteomics: A Review of Techniques, Applications, and Advancements
Nov 2024
Article
Source:
Protein and Peptide Letters
31,
pp 827
- 849
(2024)
Immunoproteomics is the branch of proteomics with an emphasis on the study of functional peptides and proteins related to the immune system. Combining proteomics techniques with immunological research aims to uncover the complex interactions of proteins involved in immune responses. This review discusses the methods applications and recent advancements in immunoproteomics highlighting its critical role in understanding immune respons Read More
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