目的：观察染料木黄酮对人口腔癌TCA8113细胞增殖的影响，并探讨其作用机制。方法： MTT法、细胞计数法及集落形成实验检测细胞增殖；蛋白质免疫印迹检测血管内皮生长因子（ VEGF ）、细胞外信号调节激酶（ ERK）及p-ERK的蛋白水平。结果：染料木黄酮能显著抑制TCA8113细胞的增殖，其抗增殖活性具有浓度依赖性；染料木黄酮还可剂量依赖性地降低VEGF、ERK及p-ERK的蛋白水平；VEGF的表达可被ERK特异性抑制剂U0126所抑制；VEGF受体拮抗剂阿西替尼及U0126均显著抑制TCA8113细胞的增殖。结论：染料木黄酮可抑制人口腔癌TCA8113细胞的增殖，其机制可能与其抑制ERK表达及活化，进而抑制VEGF的表达有关。%AIM:To investigate the effect of genistein on the proliferation of human oral cancer TCA 8113 cells and to explore the underlying mechanisms .METHODS:The cell proliferation was examined by MTT assay , cell counting and colony formation assay .Western blotting was employed to examine the protein levels of vascular endothelial growth fac -tor (VEGF), extracellular signal-regulated kinase (ERK) and p-ERK.RESULTS: Genistein significantly inhibited the proliferation of TCA8113 cells in a concentration-dependent fashion .Moreover , genistein dose-dependently decreased the protein levels of VEGF, ERK and p-ERK.The expression of VEGF was also blunted by U 0126, a specific inhibitor of ERK.U0126 and axitinib, a VEGF receptor antagonist , both significantly inhibited the proliferation of TCA 8113 cells. CONCLUSION:Genistein inhibits the proliferation of TCA8113 cells, which may be related to its inhibitory effect on ERK expression and activation , thus subsequently decreasing the expression of VEGF .
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