吲哚美辛通过Akt/GSK3β/NAG-1信号通路诱导胃癌细胞的凋亡

被引:8
作者
庞瑞萍 [1 ]
胡品津 [2 ]
曾志荣 [2 ]
陈为 [2 ]
机构
[1] 中山大学中山医学院生理教研室
[2] 中山大学第一附属医院消化内科
基金
广东省自然科学基金;
关键词
吲哚美辛; 环氧合酶; MGC-803细胞; 细胞凋亡; Akt/GSK3β/NAG-1通路;
D O I
暂无
中图分类号
R735.2 [胃肿瘤];
学科分类号
100112 [医学生物化学与分子生物学];
摘要
目的:探讨非选择性环氧合酶抑制剂吲哚美辛诱导胃癌细胞凋亡作用与Akt/GSK3β/NAG-1信号通路的关系。方法:MTT法测定胃癌细胞的活力;Hoechst 33258染色检测细胞形态学改变,流式细胞术检测DNA含量的变化,Western blotting检测蛋白表达的变化。结果:吲哚美辛通过caspase通路诱导胃癌细胞MGC-803的凋亡,明显降低Akt和GSK3β的磷酸化水平,同时上调NAG-1的表达。单独抑制PI3K或Akt的活性亦可上调NAG-1的表达,而GSK3β抑制剂预处理后则取消吲哚美辛上调NAG-1表达的作用。结论:吲哚美辛可通过Akt/GSK3β/NAG-1信号通路诱导胃癌细胞MGC-803的凋亡。
引用
收藏
页码:1513 / 1518
页数:6
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