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Bcl-2基因转染对大鼠皮层神经细胞内质网凋亡的影响

, PP. 905-908

Keywords: bcl-2,基因转染,缺血再灌注,内质网应激,神经元

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Abstract:

目的研究bcl-2基因转染对保护体外培养缺血再灌注损伤的大鼠皮层神经细胞的影响。方法体外培养24h大鼠大脑皮层神经细胞,随机分为正常对照组(Control)、缺血再灌注组(Ischemia-reperfusion,I/R)和bcl-2基因转染组(bcl-2)。建立缺血再灌注模型,应用脂质体将bcl-2基因转入神经细胞。流式细胞术检测各组细胞凋亡率,MTT法测定细胞活力。Western-Blot法检测各组细胞bcl-2、葡萄糖调节蛋白78(Glucoseregulatedprotein78,GRP78)的蛋白含量。结果缺血再灌注组细胞凋亡率较对照组明显升高,bcl-2转染后细胞凋亡率显著下降,差异有统计学意义(P结论bcl-2基因转染对缺血再灌注的鼠大脑神经元有明显保护作用,可能与其降低内质网相关性凋亡蛋白表达有关。

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