The server is under maintenance between 08:00 to 12:00 (GMT+08:00), and please visit later.
We apologize for any inconvenience caused
Login  | Sign Up  |  Oriprobe Inc. Feed
China/Asia On Demand
Journal Articles
Laws/Policies/Regulations
Companies/Products
Bookmark and Share
Effect of angiotensin Ⅱ on proliferation and expression of p21, p27 in rat cardiac fibroblasts
Author(s): 
Pages: 1129-1131
Year: Issue:  11
Journal: THE JOURNAL OF PRACTICAL MEDICINE

Keyword:  血管紧张素Ⅱ 心肌 成纤维细胞 p27 p21;
Abstract: 目的:探讨血管紧张素Ⅱ(angiotensinⅡ,AngⅡ)对大鼠心肌成纤维细胞(cardiac fibroblasts,CFs)增殖的作用及其分子机制.方法:差速贴壁法体外培养新生Wistar大鼠的CFs,随机分为3组:对照组,AngⅡ处理组,洛沙坦(losartan)+AngⅡ处理组.作用24 h后,收集细胞,倒置显微镜下观察活细胞形态;四氮唑盐(MTT)比色法检测细胞的增殖;流式细胞仪分析细胞周期与p21和p27的蛋白表达.结果:AngⅡ可显著提高CFsMTT-OD值,使S期细胞比率增加,G1期细胞比率下降,并降低细胞p27蛋白的表达,而对p21的蛋白表达无影响.AT1受体拮抗剂Losartan可完全阻断AngⅡ的作用.结论:AngⅡ通过AT1受体促进CFs增殖的机制可能与降低细胞p27蛋白的表达有关.
Related Articles
No related articles found