PRACTICAL ONCOLOGY JOURNAL ›› 2015, Vol. 29 ›› Issue (4): 294-298.doi: 10.11904/j.issn.1002-3070.2015.04.002

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HIF-1α induces ovarian cancer to resistant to bevacizumab

YU Ge1,YANG Xian2,LIU Xiaodong3,SHAO Hua1,ZHAO Yulan1,WANG Jing1   

  1. 1.The Affiliate Tumor Hospital of Harbin Medical University,Harbin 150081,China;
    2.The Fourth Affiliated Hospital of Harbin Medical University;
    3.The Second Affiliated Hospital of Harbin Medical University
  • Received:2015-05-17 Online:2015-08-27 Published:2015-08-27

Abstract: Objective To investigate the relationship between HIF-1α and bevacizumab resistant in ovary cancer,and explore the influence on ovary cancer cell by HIF-1α.Methods The correlation was analyzed between HIF-1α expression and clinicopathological parameters using immunohistochemistry in 62 patients with ovarian cancer.In addition,the expression of HIF-1α and VEGF were evaluated by real time PCR or Western Blot in SKOV3 and ES-2 cell under CoCl 2 treatment.Results HIF-1α was overexpressed in cancer tissue,and its high levels were related to CA125(P=0.027)and resistant to bevacizumab(P<0.001).Moreover,CoCl2 could induce high expressions of HIF-1α and VEGF,when compared to normal condition.Conclusion Our findings suggest that HIF-1α is associated with resistant to bevacizumab.It is more chemotherapeutic sensitivity when combined with bevacizumab and HIF-1α antibody.

Key words: Bevacizumab, HIF-1α, Ovarian cancer

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