高浓度葡萄糖通过下调自噬增加体外培养雪旺细胞的凋亡

被引:8
作者
屈岭 [1 ]
顾蓓 [2 ]
张宏 [2 ]
石玥 [1 ]
梁晓春 [1 ]
机构
[1] 中国医学科学院北京协和医学院北京协和医院中医科
[2] 中国医学科学院基础医学研究所细胞中心
关键词
雪旺细胞; 高糖; 自噬; beclin1; 凋亡;
D O I
10.16352/j.issn.1001-6325.2013.08.021
中图分类号
R587.2 [糖尿病性昏迷及其他并发症];
学科分类号
100201 [内科学];
摘要
目的观察高浓度葡萄糖对雪旺细胞自噬活性的影响以及自噬对高糖条件下雪旺细胞增殖活性及凋亡的影响。方法体外培养RSC96细胞,Western blot和免疫荧光法检测beclin1和caspase-3蛋白表达,MTT检测细胞增殖活性。结果高浓度葡萄糖组RSC96细胞beclin1的表达减少(P<0.05),细胞增殖活性降低(P<0.05,P<0.01)。自噬被抑制后加剧了高糖对细胞增殖活性的削弱作用(P<0.01),同时增加了高糖促进caspase-3的活化作用(P<0.01)。结论高浓度葡萄糖通过下调自噬活性增加细胞凋亡。
引用
收藏
页码:1009 / 1013
页数:5
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