闵安娜;刘锋明;晏彪;陈明清;杨旭;

• 1:华中师范大学生命科学学院调控与整合生物学湖北省重点实验室

摘要(Abstract)：

为探究邻苯二甲酸丁基苄酯(butyl benzyl phthalate,BBP)对小鼠神经的毒性作用,进行了小鼠体外毒理学研究。首先用不同浓度的邻苯二甲酸丁基苄酯染毒神经模型细胞—N2a神经瘤细胞,通过噻唑蓝比色法(MTT),Hoechst 33258染色实验评价邻苯二甲酸丁基苄酯的细胞毒效应;通过对染毒细胞氧自由基(ROS)、丙二醛(MDA)、还原型谷胱甘肽(GSH)含量的检测来探究BBP对小鼠神经瘤细胞的氧化损伤效应。随着BBP浓度的不断增高,细胞的MTT值逐渐变小,当BBP的浓度达到10 g·L-1时,MTT实验结果与对照组出现显著性差异;Hoechst 33258染色结果显示:高浓度的BBP导致细胞核呈现出不规则状态,出现了凋亡小体;随着BBP染毒浓度的升高N2a细胞中的ROS水平和MDA含量逐渐上升,分别在0.16 g·L-1和10 g·L-1开始与对照组相比出现了显著性的差异(p<0.05);而GSH系数呈现下降趋势,在0.32 g·L-1时开始出现显著性差异(p<0.05)。实验结果表明高浓度的邻苯二甲酸丁基苄酯可以导致神经瘤细胞的凋亡,并产生氧化损伤效应。

关键词(KeyWords)： 邻苯二甲酸丁基苄酯;细胞凋亡;细胞毒性;氧化损伤;神经毒性

Abstract:

Keywords:

基金项目(Foundation): 国家科技支撑计划项目(2012BAJ02B003);; 国家自然科学基金重点项目(51136002)

作者(Author): 闵安娜;刘锋明;晏彪;陈明清;杨旭;

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