文章摘要
蔡俊玮 李雪锋 黄成虎 徐焱成 曾玉琴.阻断RAS对HSkMCs细胞株细胞凋亡及Mfn2 表达的影响[J].,2015,15(8):1449-1451
阻断RAS对HSkMCs细胞株细胞凋亡及Mfn2 表达的影响
The Effects of Blocking Renin-angiotensin Systemon the Expression of Mfn2mRNA and Apoptosis in HSkMCs
  
DOI:
中文关键词: 2型糖尿病  肾素-血管紧张素系统(RAS)  胰岛素抵抗  线粒体融合蛋白2(Mfn2)
英文关键词: Type 2 diabetes  Renin angiotensin system(RAS)  Insulin resistance  Mitofusin 2(Mfn2)
基金项目:湖北省教育厅科学技术研究计划重点项目(D20112105);湖北省十堰市科技局项目(2010st12); 湖北医药学院2010 博士启动项目(2010QDJ24);湖北医药学院附属太和医院2010博士启动项目(2010QD15)
作者单位
蔡俊玮 李雪锋 黄成虎 徐焱成 曾玉琴 十堰市太和医院湖北医药学院附属医院内分泌科武汉大学中南医院内分泌科 
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中文摘要:
      目的:观察氯沙坦对高糖培养人骨骼肌细胞(Human skeletal muscle cells,HSkMCs)中线粒体融合蛋白2(mitofusin2, Mfn2)的 表达及其对细胞凋亡的影响。方法:1.使用不同浓度的葡萄糖养基(葡萄糖浓度分别为5.55 mmol/L,11.1 mmol/L,22.2 mmol/L)分 别培养HSkMCs 细胞株48 小时,检测各组细胞中血管紧张素Ⅰ型受体(Angiotensin II type I receptor, AT1R)基因、基因Mfn2 的表 达,并用流式细胞术检测细胞凋亡。2. 根据1 中实验结果,选择对Mfn2 影响最大的葡萄糖浓度(此组葡萄糖浓度为22.2 mmol/L)作为后续实验的条件。加入血管紧张素受体Ⅱ拮抗剂(Angiotensin ReceptorBlockers,ARB)氯沙坦(Losartan),处理人骨骼 肌细胞(HSkMCs)48 h,以未加氯沙坦为对照组,观察其对线粒体融合蛋白2(Mfn2 表达的影响,并行流式细胞术检测细胞凋亡。 结果:氯沙坦干预组HSkMCs细胞中Mfn2 表达上调,细胞凋亡减少。结论:阻断肾素血管紧张素系统(Renin-angiotensin System , RAS)能上调HSkMCs细胞株中的Mfn2 表达,并减少细胞凋亡。
英文摘要:
      Objective:To observe the effect of losartan on the expression of Mfn2 mRNA and apoptosis in Human skeletal muscle cells (HSkMCs) cultured by high glucose medium.Methods:HSkMCs were cultivated and treated with glucose of different concentration (5.55 mmol/L group, 11.1 mmol/Lgroup, 22.2 mmol/Lgroup) for 48 hours. Then the expression of AT1R and Mfn2 was detected by PCR, apoptosis was detected by flow cytometry.2. Select 22.mmol/Lcgroup which has the most influence on the expression of Mfn2 from the above experiments as the following experimental conditions. Added losartan ( ARB ) to treat HSkMCs for 48 h, in compared with the group without losartan. To observe its effect on the expression of Mfn2 and apoptosis via flow cytometry.Results:The expression of Mfn2 in HSkMCs cultivated added losatan group was up - regulated, while apoptosis was reduced.Conclusion:Blocking RAS could up-regulate the expression of Mfn2 and reduce cell apoptosis in HSkMCs.
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