首页 | 本学科首页   官方微博 | 高级检索  
检索        

氧化型胆固醇诱导兔血管平滑肌细胞凋亡
引用本文:崔鸣,陈凤荣,朱应葆.氧化型胆固醇诱导兔血管平滑肌细胞凋亡[J].北京大学学报(医学版),2001,33(2):173-177.
作者姓名:崔鸣  陈凤荣  朱应葆
作者单位:^A北京大学第三医院心内科,北京 100083^B北京大学医学部附属第三医院(北医三院)^C1447^D1%^A北京大学第三医院细胞与分子生物学实验室,北京 100083^B北京大学医学部附属第三医院(北医三院)^C1447^D2
基金项目:高等学校博士学科点专项科研基金(9724)资助 Supported by the Special Scientific Research Foundation for Doctoral Discipline Area of the Institution of Higher Learning(9724);
摘    要:目的:研究氧化型胆固醇(Triol与25-OH)对兔主动脉血管平滑肌细胞(vascular smooth muscle cell,VSMC)凋亡的诱导,并观察其时效与量效关系。方法:原代培养兔VSMC,利用光镜、电镜、DNA电泳及TUNEL法作为凋亡检测法。结果:光镜、电镜下可见典型的细胞凋亡形态学改变,电泳示“DNA ladder”,TUNEL法示正常兔VSMC凋亡率为3.62%,用Triol和25-OH不同质量浓度(5、10、15、20 mg*L-1)分别处理细胞24 h后,凋亡率明显升高;用Triol和25-OH(15 mg*L-1)分别处理细胞0、12、24、36 h后,凋亡率随时间延长而增加。结论:氧化型胆固醇(Triol与25-OH)可以诱导血管平滑肌细胞发生凋亡,且呈时间和剂量依赖性。

关 键 词:氧化型胆固醇    平滑  血管  凋亡  胆固醇  
文章编号:1000-1530(2001)02-0173-05

Oxysterols induced apoptosis in rabbit vascular smooth muscle cells
CUI Ming,CHEN Feng Rong,ZHU Ying Bao.Oxysterols induced apoptosis in rabbit vascular smooth muscle cells[J].Journal of Peking University:Health Sciences,2001,33(2):173-177.
Authors:CUI Ming  CHEN Feng Rong  ZHU Ying Bao
Abstract:Objective:To investigate the apoptosis of rabbit vascular smooth muscle cells (VSMC) induced by oxysterols and observe the time and dose effect. Methods: Light miroscope, electron microscope, DNA agarose gel electrophoresis and TUNEL were uesed to detect the apoptosis of rabbit aortic VSMC. Results:The characteristic morphological features of apoptosis were observed under light and electron microscope; DNA electrophoresis showed “DNA Ladder”; TUNEL showed the apoptotic rate of normal rabbit VSMC was 3.62%. While treated with either Triol or 25-OH by different dose (5, 10, 15, 20 mg*L-1) and at different times (0, 12, 24, 36 h), the apoptotic rate increased significantly. Conclusion: Both Triol and 25-OH can induce apoptosis of vascular smooth muscle cells in a dose and time dependent manner.
Keywords:Oxysterols  Muscle  smooth  vascular  Apoptosis  Cholesterol
本文献已被 CNKI 万方数据 等数据库收录!
点击此处可从《北京大学学报(医学版)》浏览原始摘要信息
点击此处可从《北京大学学报(医学版)》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号