%0 Journal Article
%T 敲低EN2诱导肝癌细胞凋亡并提高PTEN蛋白的表达
%A 万春
%A 吕新远
%A 杨启
%J 肿瘤防治研究
%D 2019
%R 10.3971/j.issn.1000-8578.2019.18.1295
%X 摘要 目的 探讨EN2对肝癌细胞凋亡及细胞中PTEN蛋白表达的影响。方法 用EN2 siRNA慢病毒感染肝癌细胞HuH-7，qRT-PCR和Western blot方法检测干扰效果。MTT方法测定细胞活力变化，PI单染法测定细胞周期分布，Annexin V-FITC/PI双染法测定细胞凋亡变化，Western blot测定细胞中激活型Caspase-3（Cleaved Caspase-3）、激活型Caspase-9（Cleaved Caspase-9）、第10号染色体同源缺失性磷酸酶-张力蛋白（PTEN）及细胞周期素B 1( Cyclin B l)蛋白水平，JC-1法测定线粒体膜电位变化，Western blot测定胞浆中细胞色素C（Cytochrome C）蛋白水平。结果 EN2 siRNA慢病毒感染可明显下调肝癌细胞中EN2的表达。沉默EN2表达后的肝癌细胞活力降低，细胞凋亡率升高，细胞G2/M期比例升高，细胞中Cleaved Caspase-3、Cleaved Caspase-9、PTEN蛋白水平明显升高，Cyclin B1蛋白水平明显降低，线粒体膜电位下降，胞质中Cytochrome C蛋白水平升高。结论 敲低EN2可以阻滞肝癌细胞周期，诱导肝癌细胞凋亡，其作用机制可能与PTEN、线粒体凋亡途径有关
%K 肝癌细胞
%K EN2
%K PTEN
%K 凋亡
%K Advances in Role of Cyclooxygenase 2 in Development and Progression of Cancer
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%K Migration
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%U http://www.zlfzyj.com/CN/abstract/abstract9372.shtml