Wnt3a减轻黑素细胞iMC65氧化应激损伤
文献类型: 中文期刊
作者: 郑妍;杨珂;李娅莎;董世访;周丽娜
作者机构:
关键词: Wnt3a;黑素细胞;Nrf2;氧化应激
期刊名称:基础医学与临床
ISSN: 1001-6325
年卷期: 2017 年 10 期
页码: 1389-1394
摘要: 目的探讨Wnt3a对氧化应激损伤的i MC65黑素细胞的保护作用及机制。方法将黑素细胞分成对照组,Wnt3a组,H2O2处理组,Wnt3a干预组,750μmol/L的H2O2作用模拟黑素细胞的氧化应激损伤。MTT实验检测细胞活性,流式细胞术检测细胞凋亡率和细胞产生活性氧(ROS),荧光素酶报告基因检测Nrf2/ARE通路的激活,Western blot检测Nrf2/ARE通路的相关蛋白表达。结果与对照组相比,H2O2处理组的细胞活性明显下降(P<0.01),凋亡比率明显上升(P<0.01),ROS的产生明显增加(P<0.01)。而Wnt3a干预组能显著缓解H2O2处理组细胞活性的降低(P<0.05)、降低凋亡比率(P<0.05),减少ROS的产生(P<0.05)。Wnt3a也能上调Nrf2和HO-1蛋白水平的表达。结论 Wnt3a可以保护氧化应激状态下的黑素细胞,其机制可能与激活Nrf2/ARE有关。
分类号: R758.41
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