共 5 条
瑞舒伐他汀抑制C-反应蛋白诱导的晚期内皮祖细胞炎症因子的表达
被引:21
作者:

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罗艳婷
论文数: 0 引用数: 0
h-index: 0
机构: 中山大学附属第三医院心内科

刘金来
论文数: 0 引用数: 0
h-index: 0
机构: 中山大学附属第三医院心内科
机构:
[1] 中山大学附属第三医院心内科
来源:
基金:
广东省自然科学基金;
关键词:
炎症;
C-反应蛋白;
内皮祖细胞;
瑞舒伐他汀;
D O I:
暂无
中图分类号:
R965 [实验药理学];
学科分类号:
100602 ;
100706 ;
摘要:
目的:观察瑞舒伐他汀对C-反应蛋白(CRP)诱导晚期内皮祖细胞分泌单核细胞趋化蛋白1(MCP-1)、白细胞介素8(IL-8)、血管细胞黏附分子1(VCAM-1)及细胞间粘附分子-1(ICAM-1)的影响。方法:密度离心法获取人脐血单个核细胞并培养获得晚期内皮祖细胞。以不同浓度和不同时间CRP刺激晚期内皮祖细胞,以及将晚期内皮祖细胞用不同浓度(10-8mol/L、10-7mol/L和10-6mol/L)瑞舒伐他汀预孵育12 h后再用CRP 50 mg/L刺激,观察细胞的炎症变化。采用荧光定量PCR方法检测IL-8、MCP-1、VCAM-1和ICAM-1 mRNA表达情况,用ELISA检测细胞上清液MCP-1和VCAM-1蛋白表达情况。结果:IL-8、MCP-1、VCAM-1和ICAM-1 mRNA表达量及MCP-1和VCAM-1蛋白表达量均随CRP刺激浓度的增高逐渐增加;50 mg/L CRP不同时间刺激下IL-8、VCAM-1和ICAM-1 mRNA表达量在6 h达高峰,MCP-1则在3 h即达高峰,而MCP-1和VCAM-1蛋白水平均随CRP刺激时间增加逐渐增高。而以不同浓度瑞舒伐他汀预孵育,可以浓度依赖性地抑制CRP诱导的晚期内皮祖细胞各炎症因子的表达。结论:不同浓度、不同时间的CRP刺激可增加晚期内皮祖细胞炎症因子表达,进一步证明CRP并非仅仅为炎症标志物;瑞舒伐他汀可显著抑制CRP诱导晚期内皮祖细胞炎症因子的表达,从一个新的角度阐明了瑞舒伐他汀的作用机制。
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页码:597 / 602
页数:6
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