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孕烷X受体抗食管癌EC9706细胞凋亡的作用机制

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摘要 目的研究孕烷X受体(PXR)抗食管癌EC9706细胞凋亡的作用机制。方法使用利福平活化食管鳞癌EC9706细胞中的PXR,阿霉素(ADM)诱导高表达PXR的EC9706细胞凋亡,采用流式细胞仪观察细胞的增殖周期,MTT法观察细胞凋亡率,Western印迹和免疫组化法检测Caspase-3,Bcl-2,Bax蛋白表达情况。结果 ADM处理可以明显抑制细胞生长;使细胞呈明显凋亡改变;利福平诱导PXR高表达的EC9706细胞凋亡减少,抑制Caspase-3的蛋白水平,上调蛋白Bcl-2的表达,表明PXR在抗食管鳞癌细胞凋亡中发挥重要的作用。结论 PXR可能是通过降低Caspase-3和升高Bcl-2蛋白的表达抑制食管癌细胞EC9706的凋亡。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2012年第22期4962-4965,共4页 Chinese Journal of Gerontology
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参考文献8

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