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  • Title: [Over-expression of hypoxia-inducible factor-1 alpha increases angiogenesis of LNCaP cells].
    Author: Han YL, He DL, Luo Y, Cheng HP, Zhu GF.
    Journal: Zhonghua Nan Ke Xue; 2007 Nov; 13(11):988-91. PubMed ID: 18077909.
    Abstract:
    OBJECTIVE: To evaluate the effect of hypoxia-inducible factor-1 alpha (HIF-la) on angiogenesis in human prostate cancer cells. METHODS: Human prostate cancer cells of the line LNCaP were cultured and transfected by the recombinant plasmid pcDNA3. 1(-)/HIF-1alpha containing the gene HIF-1alpha with the Lipofectamine 2000 system. The positive clone cells were selected by G418 and confirmed by Western blotting and immunofluorescence (LNCaP/HIF-1alpha cells). The expressions of VEGF, iNOS and Ang-2 were detected by Western blotting. RESULTS: The expression of HIF-1alpha in the LNCaP/HIF-1alpha cells was distinctly higher than that in the LN-CaP cells. Compared with the LNCaP cells, the expressions of VEGF and iNOS were up-regulated, whereas Ang-2 remained unchanged in the LNCaP/HIF-1alpha cells. CONCLUSION: The over-expression of HIF-1alpha can induce an increase in angiogenesis proteins and improve the angiogenesis potency of prostate cancer.
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