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2000
Volume 14, Issue 5
  • ISSN: 1574-8936
  • E-ISSN: 2212-392X

Abstract

Background: HIF-1α can affect the apelin expression and participates in the developments in cancers but the mechanism need to be explored further. Objective: This paper investigates apelin expression in nasopharyngeal carcinoma CNE-2 cells and its regulation by hypoxia inducible factor-1α (HIF-1α) under hypoxic conditions. Methods: CoCl2 was used to induce hypoxia in CNE-2 cells for 12h, 24h and 48h. HIF-1α small interference RNA (siRNA) was transfected into CNE-2 cells using a transient transfection method. HIF-1α and apelin mRNA levels were detected by real time PCR. Western blot was used to measure HIF-1α protein expression. The concentration of apelin in cell culture supernatant was determined by enzyme linked immunosorbent assay (ELISA). Results: HIF-1α and apelin mRNA levels and protein expression in CNE-2 cells increased gradually with increased duration of hypoxic exposure and were significantly reduced in HIF-1α siRNA transfected cells exposed to the same hypoxic conditions. Conclusion: Apelin expression is induced by hypoxia and regulated by HIF-1α in CNE-2 cells.

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/content/journals/cbio/10.2174/1574893614666190109155825
2019-07-01
2025-06-12
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/content/journals/cbio/10.2174/1574893614666190109155825
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