蛇床子素对宫颈癌Hela细胞凋亡的作用研究

Effect of osthole on apoptosis of human cervical carcinoma Hela cells

目的探讨蛇床子素对人宫颈癌Hela细胞增殖、凋亡的作用及可能的机制。方法经不同浓度蛇床子素处理体外培养的宫颈癌Hela细胞,采用四甲基偶氮唑盐(MTT)法检测细胞增殖活性,流式细胞仪检测细胞凋亡率和细胞内活性氧(ROS)水平,半定量RT-PCR法检测Bcl-2和Bax mRNA的表达。结果与对照组比较,不同浓度的蛇床子素均可明显抑制人宫颈癌Hela细胞增殖、诱导细胞凋亡,增高细胞内ROS水平,降低Bcl-2/Bax的表达比例,且具有一定的剂量依赖性。结论蛇床子素抑制人宫颈癌Hela细胞增殖并促进细胞凋亡,与升高细胞ROS水平、促进激活促凋亡因子Bax的表达和抑制抗凋亡因子Bcl-2的表达有关。

Objective To investigate the effect and the possible mechanism of osthole on proliferation and apopotosis of human cervical carcinoma Hela cells and its passible mechanism.Methods After cervical carcinoma Hela cells were incubated with different concentrations osthole,the cell proliferation activity was examined by MTT assay.The apoptosis rate and cellular ROS level were measured by flow cytometry.The Bcl-2and Bax mRNA expression was determined by semi-quantitative RT-PCR.ResultsIn comparison with the control group,osthole with different concentrations could obviously inhibit the Hela cells proliferation and accelerated the cellular apoptosis,lowered the expression rate of Bcl-2/Bax,raise the cellular ROS level in a osthole dose-dependent manner.Conclusion Osthole may inhibit Hela cell proliferation and accelerates the cells apoptosis,which might be associated with the increasing the cellular ROS level,promoting Bax expression and inhibiting Bcl-2expression.