佛手挥发油对MDA-MB-435人乳腺癌细胞体外增殖的影响

被引:32
作者
麻艳芳
邵邻相
张均平
邓刚
吕学维
徐玲玲
毕洁琼
机构
[1] 浙江师范大学化学与生命科学学院
关键词
佛手; 挥发油; 细胞凋亡; 坏死; MDA-MB-435癌细胞;
D O I
暂无
中图分类号
R285.5 [中药实验药理];
学科分类号
1008 ;
摘要
目的探讨佛手挥发油对MDA-MB-435人乳腺癌细胞增殖的影响。方法采用MTT法测定细胞活力;倒置显微镜、荧光显微镜和扫描电镜观察细胞的凋亡与坏死的形态学变化;彗星电泳检测细胞DNA的损伤程度;流式细胞术分析细胞周期的变化。结果佛手挥发油对MDA-MB-435癌细胞的增殖有明显的抑制作用,且呈剂量依赖性。不同浓度的佛手挥发油处理MDA-MB-435细胞6h后,低、中浓度实验组(31.25,62.5和125μg.mL-1)细胞体积缩小、核固缩,染色质凝集或片段化,呈现典型的凋亡特征;而高浓度实验组(250μg.mL-1)细胞膜裂解,但核形态完整,呈明显的坏死特征。此外,彗星电泳结果显示,低、中浓度实验组彗星头小而彗尾窄长,表明细胞发生了凋亡;高浓度实验组彗星头大而彗尾长且宽,表明细胞已坏死。进一步的流式细胞结果显示,佛手挥发油能将MDA-MB-435癌细胞周期阻滞在S期和G2/M期。结论佛手挥发油具有抑制MDA-MB-435癌细胞增殖的作用,低、中浓度的佛手挥发油诱导细胞凋亡且将细胞周期阻滞在S期和G2/M期,而高浓度的佛手挥发油引起细胞坏死。
引用
收藏
页码:1737 / 1741
页数:5
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