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真核细胞翻译延伸因子2参与神经生长因子诱导的大鼠嗜铬细胞瘤细胞的分化 被引量:2

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摘要 目的研究神经生长因子(NGF)诱导大鼠嗜铬细胞瘤细胞系PC12细胞分化途径中,细胞突触生长的起始和延伸步骤中的关键蛋白质,寻找其中可能的药物靶点。方法 50 ng/ml NGF诱导PC12细胞6 h和12 h,显微镜下观察PC12细胞的形态变化;应用二维凝胶电泳、De Cyder软件分析及基质辅助激光解析/电离-飞行时间质谱,研究其差异蛋白质组学变化。结果 NGF作用于PC12细胞6 h后,细胞出现神经突起;12 h,神经突起进一步生长,蛋白质分析提示真核细胞翻译延伸因子(e EF)2含量减少,α微管蛋白和β肌动蛋白表达增加。结论 NGF诱导PC12细胞发生神经突触生长,e EF-2的减少与细胞骨架蛋白增加与细胞的形态学变化一致,提示突触生长过程中,e EF-2可能起到关键性作用。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2015年第23期6720-6721,共2页 Chinese Journal of Gerontology
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