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红景天苷对MPP^+诱导的PC12细胞凋亡的保护作用 被引量:6

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摘要 目的:探讨红景天苷对MPP+诱导的PC12细胞凋亡是否具有保护作用。方法:采用MPP+诱导的具有多巴胺能神经元特性的PC12细胞凋亡作为PD的体外模型。实验分对照组、500μmoL/L MPP+诱导组、红景天苷(10、50、100μmol/L)3个浓度预处理组。用MTT法测定细胞活性,流式细胞术检测细胞凋亡,TUNEL法检测细胞凋亡断裂的DNA片段。结果:10、50、100μmoL/L红景天苷对MPP+诱导的PC12细胞具有一定的保护作用。与MPP+组(50.2±1.8)%相比,10、50、100μmoL/L红景天苷预处理细胞活力分别上升为(65.1±1.0)%、(69.5±2.3)%、(80.9±2.0)%(P<0.05)。流式细胞术检测提示正常组、MPP+组、红景天苷预处理组(10、50、100μmoL/L)凋亡百分率分别为0.9%、34.5%、26.9%、20.1%、14.2%。经红景天苷预处理后,与MPP+组相比较细胞断裂的DNA片段明显减少。结论:红景天苷对MPP+诱导的细胞凋亡具有浓度依赖性的保护作用。
出处 《细胞与分子免疫学杂志》 CAS CSCD 北大核心 2009年第11期1050-1052,共3页 Chinese Journal of Cellular and Molecular Immunology
基金 军队"中药新药"专项基金资助(2006192)
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参考文献6

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