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尿酸通过诱导线粒体钙稳态失衡介导内皮细胞炎症反应
引用本文:齐卡,冯哲,洪权,傅博,崔少远,陈香美,吴镝. 尿酸通过诱导线粒体钙稳态失衡介导内皮细胞炎症反应[J]. 山东医药, 2010, 50(20): 15-18
作者姓名:齐卡  冯哲  洪权  傅博  崔少远  陈香美  吴镝
作者单位:中国人民解放军总医院,北京,100853
基金项目:国家自然科学基金资助项目,国家重点基础研究发展规划"973"项目 
摘    要:目的探讨线粒体钙稳态失衡在高尿酸(UA)导致的血管内皮细胞炎症中的病理生理机制。方法采用Fluo-3 AM及Rhod-2 AM分别对UA刺激后的人脐静脉内皮细胞(HUVEC-C)进行胞质钙离子浓度([Ca2+]i)和线粒体钙离子浓度([Ca2+]mito)的特异性染色;RT-PCR法检测其C反应蛋白(CRP)和细胞间黏附分子1(ICAM-1)的mRNA表达变化;Western blot检测ICAM-1的蛋白变化;ELISA法检测其培养液上清白细胞介素6(IL-6)的释放变化情况。结果HUVEC-C经600μmol/L的UA刺激后,其[Ca2+]i未见明显变化,而[Ca2+]mito呈波浪式升高(P〈0.05),并在24 h内保持较高的状态;CRP、ICAM-1、IL-6均在UA刺激后升高(P〈0.05)。结论UA可导致内皮细胞炎症反应,[Ca2+]mito的升高与之相关,提示线粒体钙稳态失衡在UA导致的内皮炎症反应中起一定的介导作用。

关 键 词:尿酸  线粒体    内皮细胞  炎症

Mitochondrial calcium homeostasis imbalance was associated with uric acid induced endothelial inflammation
QI Ka,FENG Zhe,HONG Quan,FU Bo,CUI Shao-yuan,CHEN Xiang-mei,WU Di. Mitochondrial calcium homeostasis imbalance was associated with uric acid induced endothelial inflammation[J]. Shandong Medical Journal, 2010, 50(20): 15-18
Authors:QI Ka  FENG Zhe  HONG Quan  FU Bo  CUI Shao-yuan  CHEN Xiang-mei  WU Di
Affiliation:QI Ka,FENG Zhe,HONG Quan,FU Bo,CUI Shao-yuan,CHEN Xiang-mei,WU Di(The General Hospital of the People's Liberation Army,Beijing 100853,P.R.China)
Abstract:Objective To evaluate the characteristics and mechanism of mitochondrial calcium homeostasis imbalance in vascular endothelial cells inflammation induced by uric acid.Methods Fluo-3 AM and Rhod-2 AM were employed to measure the introcellular calcium concentration(i) and mitochondrial calcium concentration(mito) of human umbilical vein endothelial cells(HUVEC-C) after stimulation of UA,respectively.RT-PCR was used to detected C-reactive protein(CRP) and the intercellular adhesion molecule-1(ICAM-1) levels of...
Keywords:uric acid  mitochondria  calcium  endothelial cells  inflammation  
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