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雷公藤内酯醇对Tca 8113细胞增殖周期进程的影响

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摘要 目的观察雷公藤内酯醇(TL)对体外培养的人舌癌细胞系Tca8113细胞诱导分化机制,为人舌癌治疗提供理论依据。方法应用噻唑蓝(MTT)比色法检测不同浓度的TL对Tca8113细胞的增殖抑制率,相差显微镜观察细胞形态学改变,流式细胞仪检测Tca8113细胞周期进程改变及凋亡率,电子显微镜观察经TL作用后的Tca8113细胞超微结构改变。结果 TL对Tca8113细胞的增殖抑制率呈明显的剂量依赖性,相差显微镜下实验组细胞贴壁不佳,并且数目减少,细胞圆缩。流式细胞仪结果显示G1期细胞增多,S期细胞减少,G2/M期细胞增多,细胞凋亡率升高。电子显微镜下可见细胞高度空化,线粒体肿胀,细胞核染色质趋边,可见凋亡小体。结论 TL对Tca8113细胞有显著的增殖抑制作用,阻止Tca8113细胞G期向S期转化进程,诱导Tca8113细胞凋亡及亚细胞结构改变。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2010年第10期1384-1385,共2页 Chinese Journal of Gerontology
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参考文献5

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