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Mechanism of dracorhodin perchlorate-induced Hela cell apoptosis
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- Author:
- No author available
- Journal Title:
- ACTA PHARMACEUTICA SINICA
- Issue:
- 12
- DOI:
- 10.3321/j.issn:0513-4870.2004.12.002
- Key Word:
- 血竭素高氯酸盐;HeLa细胞;细胞凋亡;抗肿瘤活性
Abstract： 目的研究血竭素高氯酸盐诱导HeLa细胞凋亡机制.方法MTT法测定血竭素高氯酸盐对HeLa细胞的细胞毒作用.通过显微镜,荧光染色观察细胞形态学变化,用琼脂糖凝胶电泳检测DNA片断化.用Western印迹法分析药物对蛋白质表达的影响.结果血竭素高氯酸盐明显抑制HeLa等细胞的增殖,诱导HeLa细胞调亡.Caspase-1,-3,-8,-9及家族抑制剂可明显抑制血竭素高氯酸盐诱导的凋亡.Western印迹结果显示血竭素高氯酸盐作用12 h后Bax及Bcl-XL的表达明显改变,caspase-3,-8前体及caspase-3底物ICAD和PARP发生降解.结论血竭素高氯酸盐(60 μmol·L-1)通过改变Bax/Bcl-XL的表达激活caspase途径诱导HeLa细胞凋亡.
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