Genistein影响高转移卵巢癌细胞HO-8910PM细胞周期的实验研究

目的：探讨三羟异黄酮（genistein）对人高转移卵巢癌细胞HO-8910PM细胞周期的影响及其作用机制。方法：以台盼蓝拒染法检测genistein对高转移卵巢癌细胞HO-8910PM细胞增殖的影响；流式细胞术分析genistein对HO-8910PM细胞周期的影响；Westemblot法分析NF-KB（P65）、VEGF的表达。结果：不同浓度的genistein分别处理细胞24h后，对HO-8910PM细胞增殖有明显的抑制作用；流式细胞术分析表明各浓度genistein组G，期细胞明显升高，50i,xmol／L组和100μmol／L组与对照组相比差异显著（P〈0．05），而25μmol／L组与对照组比较无显著差异（P〉0．05）；同时genistein可使NF-κB（P65）和VEGF的表达下调。结论：Genistein对HO-8910PM细胞增殖有抑制作用，其作用机制可能与NF-κB（P65）和VEGF表达下调有关。

Study on the Effect and Its Mechanisms of Genistein on the Cell Cycle of Highly Metastatic Ovarian Carcinoma HO-8910PM Cells

OBJECTIVE: To study the effect and its possible mechanism of genistein on the cell cycle of human highly metastatic ovarian carcinoma HO-8910PM cells. METHODS: Trypan blue stain assay was used to examine the effect of genistein on proliferation of HO-8910PM cells after 24 hours treatment. The cell cycle was assessed by flowcytometry (FCM). The expression level of NF-kappaB (p65) and the level of VEGF were assessed by Western blot analysis. RESULTS: Genistein could inhibit the proliferation of HO-8910PM cell and block the cell cycle at G1 phase. The expession level of NF-kappaB (P65) protein decreased obviously in HO-8910PM cells treated with 25 approximately 100 micromol/L genistein for 24 hours, and the effect appeared in the experssion of VEGF. CONCLUSION: The effect on cell cycle of genistein is involved in the decreasing expression of NF kappaB (p65) and the level of VEGF.