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三氧化二砷诱导A549细胞凋亡的实验研究

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摘要 【目的】研究三氧化二砷诱导A549细胞凋亡的发生机制。【方法】对三氧化二砷作用A549细胞后诱导的细胞凋亡进行光镜、电镜下的形态学观察和采用流式细胞仪定量计数凋亡细胞的比例改变,并通过WesternBlotting和RT-PCR检测凋亡相关因子Caspase3蛋白和Bcl-2133.RNA的表达,从分子水平分析探讨其机制。【结果]Caspase3蛋白和Bcl-2mRNA的表达与对照组相比较有显著差异(P〈0.05)。【结论】三氧化二砷作用于A549细胞后,使Bcl-2mRNA表达水平下调,Caspase3蛋白表达水平上调,从而诱导并调控了A549的凋亡。
出处 《医学临床研究》 CAS 2012年第3期520-522,共3页 Journal of Clinical Research
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