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他莫昔芬对结直肠癌细胞HCT116凋亡的影响 被引量:2

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摘要 目的探讨他莫昔芬对结直肠癌细胞HCT116的凋亡作用及可能机制。方法应用细胞计数法(CCK-8)试剂盒法观察1、3、10、30、100μmol/L他莫昔芬对结直肠癌细胞HCT116活性的影响,对照组加入5%DESO/Et OH溶液,应用流式细胞仪检测他莫昔芬介导的凋亡作用;RT-q PCR和Western blot检测他莫昔芬作用后HCT116细胞转录共刺激因子(TAZ)、Bcl-2和Bax基因和蛋白表达,并检测HCT116细胞Caspase-3活性的变化。结果他莫昔芬能使HCT116细胞的活性下降,并且随着其浓度的升高,细胞的活性下降更明显。凋亡率在他莫昔芬组和对照组分别为(35.13±5.14)%和(11.70±1.72)%。他莫昔芬作用后HCT116细胞的TAZ和Bcl-2基因和蛋白表达显著下降,而Bax基因和蛋白表达上调,细胞Caspase-3的活性显著上升(P<0.05)。结论他莫昔芬作用于结直肠癌HCT116细胞后可以显著抑制细胞的增殖,并能促进细胞凋亡,其机制可能是通过降低TAZ、Bcl-2和增高Bax、Caspase-3来介导的。
出处 《广东医学》 CAS 北大核心 2017年第2期197-200,共4页 Guangdong Medical Journal
基金 河北省科技计划项目(编号:16277702D)
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