Ang-(1-7)通过G蛋白偶联受体Mas在人肝癌细胞HepG2中的作用

Genomics and Applied Biology(2015)

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Abstract
为了研究Ang-(1-7)通过Mas对人肝癌细胞增殖的影响及在Mas高、低表达模型中分析其表达差异、凋亡等细胞生理活性变化,我们采用药物(Mas激活剂Ang-(1-7),Mas抑制剂A779)干预HepG2细胞,分别对Ang-(1-7)和A799进行剂量、时间效应实验,实时定量RT-PCR检测药物干预后细胞Mas的表达水平,最后流式细胞仪检测药物干预后细胞的凋亡变化.结果表明,Ang-(1-7)与A779的有效工作浓度为10-7 mol/L,Ang-(1-7)促进Mas的表达,Mas表达水平高于对照组.相反,A779抑制Mas的表达,但作用不明显,主要为拮抗Ang-(1-7)的功能.Ang-(1-7)处理组细胞凋亡明显升高,揭示Mas表达提升诱导人肝癌细胞凋亡.
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Key words
Mas,HepG2 cell,Drugs intervention,Activator,Inhibitor,Cell apoptosis
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