Caveolin-1在载脂蛋白E基因敲除小鼠动脉粥样硬化形成中的变化

被引:3
作者
覃丽
秦旭平
朱炳阳
廖端芳
机构
[1] 南华大学药物药理研究所,南华大学药物药理研究所,南华大学药物药理研究所,南华大学药物药理研究所衡阳,湖南,衡阳,湖南,衡阳,湖南,衡阳,湖南
关键词
caveolae; caveolin1; apoE; 动脉粥样硬化; 基因敲除;
D O I
暂无
中图分类号
R543.5 [动脉疾病];
学科分类号
1002 ; 100201 ;
摘要
目的 :探讨caveolin 1在apoE基因敲除小鼠动脉粥样硬化形成过程中的变化。方法 :取正常和apoE基因敲除小鼠 (品系均为C5 7BL 6J)作为研究对象 ,分别观察不同周龄apoE基因敲除小鼠血清甘油三酯、总胆固醇、低密度脂蛋白、高密度脂蛋白的含量及主动脉横断面积、斑块面积的变化。免疫组织化学染色法对caveolin 1进行半定量及定位分析 ,Western blotting检测caveolin 1在主动脉的表达。结果 :apoE基因敲除小鼠的血清甘油三酯、总胆固醇、低密度脂蛋白水平与对照组比较显著升高 ,并随小鼠周龄增加而升高 ;斑块面积及斑块面积与主动脉面积的比值也随小鼠周龄增加而增大。免疫组织化学染色法显示 ,caveolin 1在实验组血管内膜表达呈阳性减弱 ,其程度随周龄增加有减少趋势。免疫印迹检测显示实验组caveolin 1的表达与对照组比较有所减弱 ,并与小鼠周龄呈负相关。结论 :apoE基因敲除小鼠主动脉内皮细胞caveolin 1表达下调 ,可能与其动脉粥样硬化形成有关。
引用
收藏
页码:978 / 982
页数:5
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