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油酰乙醇胺对血管紧张素Ⅱ诱导的血管平滑肌细胞增殖的影响
Authors
张乐
田风
+3 more
邹军
金鑫
魏晓
Publication date
20 December 2012
Publisher
Abstract
目的研究油酰乙醇胺(OEA)对血管紧张素Ⅱ(AngⅡ)刺激大鼠主动脉血管平滑肌细胞(VSMCs)增殖的抑制作用以及对p38信号通路的影响。方法分离大鼠胸主动脉,组织贴块法培养VSMCs,AngⅡ刺激VSMCs建立细胞增殖模型,不同浓度OEA(5,10,20μmol/L)作用后,用溴脱氧核苷尿嘧啶(BrdU)掺入的方法检测细胞增殖活性;流式细胞术检测细胞周期变化;Western-bolt法检测对P-p38和p38蛋白表达的影响。结果与AngⅡ组比较,随着OEA浓度升高,VSMCs的增殖受到抑制、G0/G1比例显著升高,G2/M比例显著降低,且P-p38和p38蛋白的表达量降低并呈浓度依赖关系。结论 OEA对VSMCs的增殖有抑制作用,其机制可能是抑制了p38MAPK信号通路
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Last time updated on 16/06/2016