张丽志;温克;苏健;瞿全新;

• 1:天津市第一中心医院妇产科
• 2:天津医科大学基础医学院药理教研室

摘要(Abstract)：

目的:探讨脂联素对子宫内膜癌细胞增殖的抑制作用及AMPK/ERK信号传导通路的有关机制。方法:以10μg/ml脂联素作用子宫内膜癌Ishikawa3-H-12细胞0～60min,Western blot检测脂联素作用不同时间后细胞AMPK及ERK的磷酸化程度。脂联素作用12,24h后,分别采用RT-PCR和Western blot检测Cyclin D1 mRNA和蛋白水平。脂联素作用48h,MTT法检测细胞增殖。结果:脂联素以时间依赖方式诱导子宫内膜癌细胞AMPK活化,脂联素作用5min后明显活化,并维持至30min(F=22.749,P=0.000),AMPK抑制剂复合物C可明显抑制脂联素诱导的细胞AMPK活化。脂联素以时间依赖模式抑制子宫内膜癌细胞ERK活化,作用5min ERK活化明显受抑制,并维持至少60min(F=13.802,P=0.000),复合物C明显阻断脂联素诱导的细胞ERK活性抑制。脂联素明显抑制Cyclin D1 mRNA转录和蛋白表达(P=0.003,P=0.000),复合物C明显阻断脂联素对细胞Cyclin D1 mRNA转录和蛋白表达的抑制作用(P=0.006,P=0.000)。脂联素明显抑制细胞增殖(P=0.001),复合物C明显阻断脂联素对细胞的抑制作用(P=0.002)。结论:脂联素可能通过AMPK/ERK/Cyclin D1途径抑制子宫内膜癌细胞增殖。

关键词(KeyWords)： 子宫内膜癌;脂联素;AMPK;ERK;细胞周期素D1;增殖

Abstract:

Keywords:

基金项目(Foundation): 天津市卫生局科技基金重点项目(No:2011KR04)

作者(Authors): 张丽志;温克;苏健;瞿全新;

DOI: 10.13283/j.cnki.xdfckjz.2012.11.011

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