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环孢素A对β淀粉样蛋白2535诱导PC12细胞损伤的保护作用 被引量:3

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摘要 目的探讨环孢素A对β淀粉样蛋白(Aβ)25~35诱导PC12细胞损伤有无保护作用及其可能机制。方法使用0.1、0.5、1.0μmol/L环孢素A(CsA)对PC12细胞预处理24 h后,给予20μmol/L的Aβ25~35继续培养24 h。采用MTT法检测细胞活力及代谢状态,Hoechst33258/碘化丙啶(PI)双染法检测细胞存活率,免疫荧光染色法检测细胞自噬活性的变化。结果以20μmol/L Aβ25~35处理24 h可对PC12细胞产生明显的损伤作用,细胞状态明显变差,部分细胞死亡;用0.5μmol/L环孢素A预处理24 h可以明显减轻Aβ25~35诱导的PC12细胞损伤,与仅以Aβ25~35处理组相比,CsA预处理组PC12细胞的死亡率明显降低。结论环孢素A可提高PC12细胞的自噬水平,对Aβ25~35诱导的PC12细胞损伤具有保护作用,其机制可能与环孢素A能提高PC12细胞的自噬活性有关。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2014年第13期3705-3707,共3页 Chinese Journal of Gerontology
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同被引文献51

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