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Differentially expressed proteins in PC12 cells induced by methylamphetamine
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- Author:
- No author available
- Journal Title:
- Chinese Journal of Pharmacology and Toxicology
- Issue:
- 1
- DOI:
- 10.3867/j.issn.1000-3002.2012.01.018
- Key Word:
- 甲基苯丙胺;肽谱;药物毒性
Abstract： 目的 探讨甲基苯丙胺( METH)作用于PC12细胞后的蛋白质表达变化.方法 METH2.5 mmol· L-1作用PC12细胞24 h后,提取细胞总蛋白质,丙酮沉淀法纯化蛋白,Braford法对蛋白质进行定量,并对蛋白质进行双向凝胶电泳,Image scannerⅢ透射扫描仪获取凝胶电泳图谱.应用Image Master 7.0软件对获得的双向凝胶电泳图谱进行差异性蛋白质点分析,并对相应差异蛋白点用高端基质辅助激光解析-飞行时间( MALDI-TOF)串联质谱仪进行差异蛋白质鉴定.结果 应用双向凝胶电泳结合质谱分析技术,METH作用PC12细胞24h后,共鉴定出18个差异表达蛋白质点,其中8个差异蛋白点在METH作用后表达增强,10个蛋白点表达减弱.这些蛋白质主要包括细胞骨架相关蛋白、分子伴侣、氧化应激和凋亡相关的蛋白以及与能量代谢相关的酶类.结论 METH诱导PC12细胞18个蛋白差异表达.
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