AI Article Synopsis

  • HIF-1 is a crucial factor in cancer development, with heightened levels linked to metastasis and poor patient outcomes.
  • A new compound called SYP-5 was found to inhibit HIF-1, reducing its activity and the levels of related proteins like VEGF and MMP-2, which are involved in tumor growth and spread.
  • The study shows that SYP-5 not only prevents cancer cell movement and blood vessel formation but also targets key signaling pathways (PI3K/AKT and MAPK/ERK) related to HIF-1, indicating its potential as an anticancer therapy.

Article Abstract

Hypoxia-inducible factor-1 (HIF-1) plays an essential role in carcinogenesis. The overexpression of HIF-1 induced by hypoxia is closely associated with metastasis, poor prognosis and high mortality. In this study, a novel HIF-1 inhibitor SYP-5 was first observed by the luciferase reporter assay. Western blots results showed SYP-5 inhibited hypoxia-induced upregulation of HIF-1. Moreover, the proteins of vascular endothelial growth factor (VEGF) and matrix metalloproteinases (MMP)-2 that are targets of HIF-1, were down-regulated by SYP-5. Furthermore, in the tube formation assay, SYP-5 suppressed angiogenesis induced by hypoxia and VEGF in vitro. Additionally, using Transwell and RTCA assays, we found that SYP-5 also retarded the Hep3B and Bcap37 cells migration and invasion induced by hypoxia and FBS. Last, we also detected the upstream pathways related to HIF-1 and found both PI3K/AKT and MAPK/ERK were involved in the SYP-5 mediated invasive inhibition of Bcap37 cells. These results indicates that SYP-5 inhibits tumor cell migration and invasion, as well as tumor angiogenesis, which are mediated by suppressing PI3K/AKT- and MAPK/ERK-dependent HIF-1 pathway. It suggests that SYP-5 might be a potential HIF-1 inhibitor as an anticancer agent.

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Source
http://dx.doi.org/10.1016/j.ejphar.2016.09.027DOI Listing

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