黄芪和当归配伍对大鼠血管内膜增生血管平滑肌细胞增殖的影响

被引:40
作者
阎卉芳 [1 ]
徐昊 [1 ]
彭熙炜 [2 ]
朱嘉欢 [1 ]
邓常清 [1 ]
机构
[1] 湖南中医药大学中西医结合心脑疾病防治湖南省重点实验室
[2] 湖南中医药大学附属常德医院心血管科
关键词
黄芪; 当归; 血管平滑肌细胞; 细胞周期; 磷脂酰肌醇3-激酶/蛋白激酶B(PI3K/Akt);
D O I
暂无
中图分类号
R285.5 [中药实验药理];
学科分类号
100806 [中药药理学];
摘要
目的:探讨黄芪和当归不同配伍对大鼠血管内皮损伤后血管内膜增生中血管平滑肌细胞(VSMC)表型转化、细胞周期和磷脂酰肌醇3-激酶(PI3K)/蛋白激酶B(Akt)信号途径的影响。方法:雄性大鼠制备腹主动脉球囊导管损伤血管内皮模型,设计黄芪和当归单用及不同比例配伍,对内皮损伤模型大鼠灌胃给药,干预14 d后取腹主动脉,检测腹主动脉增生内膜中VSMC表型转化、细胞周期相关蛋白表达和PI3K/Akt信号通路相关蛋白的表达。结果:球囊导管损伤主动脉内皮后,可引起VSMC表型转化及VSMC增殖从而导致血管内膜增生。当归、黄芪、黄芪-当归1∶1配伍、黄芪-当归5∶1配伍可增强血管增生内膜中平滑肌α肌动蛋白(SMα-actin)表达,抑制增生内膜中增殖细胞核抗原(PCNA)蛋白表达。当归、黄芪、黄芪-当归1∶1配伍、黄芪-当归5∶1配伍可抑制血管组织中cyclin D1、cyclin E表达的增高,抑制增生内膜中p-PI3K和p-Akt蛋白表达的升高。结论:黄芪当归配伍对血管内皮受损后内膜增生具有抑制作用,其作用可能与其通过抑制血管内皮受损后PI3K/Akt信号通路激活,进而抑制VSMC表型转化和细胞增殖,从而发挥抗VSMC增殖的作用有关。
引用
收藏
页码:361 / 369
页数:9
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