4.5 Article

Hepatitis C virus core protein induces hypoxia-inducible factor 1α-mediated vascular endothelial growth factor expression in Huh7.5.1 cells

Journal

MOLECULAR MEDICINE REPORTS
Volume 9, Issue 5, Pages 2010-2014

Publisher

SPANDIDOS PUBL LTD
DOI: 10.3892/mmr.2014.2039

Keywords

hepatitis C virus; hepatocellular carcinoma; hypoxia-inducible factor 1 alpha; vascular endothelial growth factor

Funding

  1. Major State Basic Research Development Program (973 Program) [2012CB518900]
  2. National Clinical Key Subject [2010305]
  3. National Science Foundation of China [81101485, 31270206]
  4. Open Research Program of the State Key Laboratory of Virology of China [2011009, 2012007, 2013004]
  5. China Postdoctoral Foundation [201104485]

Ask authors/readers for more resources

Hepatitis C virus (HCV) infection is one of the major causes of hepatocellular carcinoma (HCC). It has been demonstrated that the overexpression of angiogenic factors are associated with the maintenance of liver neoplasia. Hypoxia-inducible factor 1 alpha (HIF-1 alpha) and vascular endothelial growth factor (VEGF) are important regulators of angiogenesis and are important in wound healing, the regeneration of new vessels and reproductive functions. The present study investigated the role of the HCV core protein in the induction of HIF-1 alpha and VEGF expression. The HCV core gene and HIF-1 alpha siRNA were transfected into Huh7.5.1 cells. The results demonstrated that the induction of HCV core gene expression in Huh7.5.1 cells leads to the overexpression and stabilization of HIF-1 alpha, and the activation of HIF-1 alpha leads, in turn, to the stimulation of VEGF, which is one of the most important angiogenic factors. These results provide new information to facilitate the understanding of HCC oncogenesis.

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