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锌离子对脂多糖作用下大鼠腹膜间皮细胞凋亡的影响 被引量:2

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摘要 目的:研究锌离子(Zn)对脂多糖(LPS)诱导的大鼠腹膜间皮细胞(RPMC)凋亡的影响,从而为锌离子在腹透相关腹膜炎中的应用提供理论基础。方法:胰蛋白酶消化法培养原代大鼠腹膜间皮细胞、传代、经鉴定后分组:(1)对照组;(2)LPS组;(3)ZnSO4组;(4)ZnSO4/LPS组。应用AnnexinV-FITC凋亡检测试剂盒及流式细胞仪检测RPMC凋亡率,并采用Westen Blot方法检测P-Akt,天冬氨酸特异性半胧氨酸蛋白酶3(caspase3),天冬氨酸特异性半胧氨酸蛋白酶8(caspase8)蛋白表达;酶联免疫吸附方法(ELISA)检测上清液TNFα,TGF-β1,sFas和d sFasL的表达。结果:与对照组相比,LPS组RPMC凋亡细胞数量和相关凋亡蛋白(caspase3,caspase8)表达升高。与LPS组相比,ZnSO4作用组RPMC凋亡细胞数量和相关凋亡蛋白(caspase3,caspase8)表达明显降低。LPS组上清液中TNFα,TGF-β1,sFas和d sFasL浓度显著高于对照组;ZnSO4作用组上清液中TNFα,TGF-β1,sFas和sFasL浓度显著低于LPS组。与LPS组相比,ZnSO4作用组P-Akt的表达明显升高。结论:ZnSO4可能可以逆转LPS所致的RPMC凋亡,对腹膜透析相关腹膜炎过程中所导致的RPMC损伤具有保护作用,其作用机制可能是通过PI3K/Akt通路而发挥作用。
出处 《中国中西医结合肾病杂志》 2013年第12期1083-1086,共4页 Chinese Journal of Integrated Traditional and Western Nephrology
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二级参考文献15

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