吴茱萸碱抑制血管紧张素Ⅱ致大鼠血管平滑肌细胞增殖的研究
Effect of evodiamine on the vascular smooth muscle cells proliferation induced by Ang Ⅱ in rats
作者:侯化化;张婧怡;林淑娴;徐洋;李强;孙安盛;
Author:
收稿日期: 年卷(期)页码:2014,29(06):-645-647
期刊名称:华西药学杂志
Journal Name:WEST CHINA JOURNAL OF PHARMACEUTICAL SCIENCES
关键字:吴茱萸碱;血管平滑肌细胞;增殖;细胞周期;血管紧张素Ⅱ;一氧化氮
Key words:
基金项目:国家自然科学基金资助项目(批准号:81160528)
中文摘要
目的探讨吴茱萸碱对血管紧张素Ⅱ(AngⅡ)所致大鼠血管平滑肌细胞(VSMCs)增殖周期的影响,并探讨其机制。方法利用组织块贴壁法培养大鼠胸主动脉VSMCs,通过MTT比色法检测VSMCs的增殖,采用流式细胞仪检测细胞周期。通过测定培养细胞上清液中一氧化氮合酶(NOS)的活性和一氧化氮(NO)的含量、Real time RT-PCR检测增殖细胞核抗原(PCNA)、内皮型NOS(e NOS)mRNA的表达来探讨Evo可能的作用机制。结果 1μmol·L-1AngⅡ能明显增加VSMCs的OD值,升高细胞周期中S期而降低G0/G1期细胞的比率,明显减少培养细胞上清液中NOS的活性和NO的含量,同时下调e NOS而上调PCNAmRNA的表达;0.01、0.1、1μmol·L-1吴茱萸碱呈浓度依赖性抑制AngⅡ的上述作用,减少细胞周期中S期而升高G0/G1期细胞的比率。结论吴茱萸碱可促进NO的合成、释放,通过阻滞VSMCs于G0/G1期是抑制VSMCs增殖的机制之一。
参考文献
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