双氢青蒿素和顺铂诱导人肺腺癌A549/CDDP细胞凋亡

被引：10

作者：

陈卫强

戚好文

吴昌归

李志奎

柏长青

张艰

机构：

[1] 第四军医大学西京医院呼吸内科

来源：

现代肿瘤医学 | 2007年 / 05期

关键词：

双氢青蒿素; 肺癌; 顺铂; 耐药; Bcl-2; Bax; 凋亡;

D O I：

暂无

中图分类号：

R734.2 [肺肿瘤];

学科分类号：

100214 ;

摘要：

目的:观察双氢青蒿素和顺铂在体外对A549/CDDP细胞的作用,分析双氢青蒿素逆转耐药效果,从诱导细胞凋亡角度分析可能的作用机理。方法:A549/CDDP细胞分为双氢青蒿素作用组和顺铂对照组,顺铂对细胞增殖抑制实验采用MTT检测法,用annexin-V和PI双标记进行流式细胞检测分析细胞凋亡率。双氢青蒿素对细胞Bcl-2,Bax等蛋白的影响采用免疫组织化学法结合图像分析。结果:对人肺腺癌A549/CDDP细胞双氢青蒿素作用组和顺铂对照组IC50值分别为1.30μg/ml和5.58μg/ml,两组比较差异显著(P<0.01),逆转倍数4.29。对A549/CDDP细胞,双氢青蒿素作用组和对照组凋亡率分别为17.6%和1.6%两组比较差异显著(P<0.01)。双氢青蒿素作用于A549/CDDP细胞后,Bcl-2蛋白表达下降,Bax蛋白表达上升。结论:A549/CDDP细胞耐药作用与凋亡耐受有关,双氢青蒿素可使A549/CDDP细胞恢复对顺铂的敏感性,通过解除凋亡抑制从而逆转耐药。

引用

页码：616 / 619

页数：4

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