西立伐他汀对血管内皮细胞一氧化氮合酶及细胞间黏附分子的作用

被引：10

作者：

冯宁

陆国平

张曼玲

吴春芳

龚兰生

冯宗忱

机构：

[1] 上海第二医科大学瑞金医院

[2] 华中科技大学同济医学院

来源：

中华心血管病杂志 | 2002年 / 05期

关键词：

降血脂药; 内皮; 细胞; 一氧化氮合酶; 细胞黏着分子;

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　观察西立伐他汀对内皮细胞一氧化氮合酶 (NOsythase ,eNOS)和细胞间黏附分子 1 (intercellularadhesionmolecule 1 ,ICAM 1 )基因的表达 ,NOS活力和黏附的THP 1细胞量的影响。方法　以氧化LDL抑制培养的ECV 3 0 4细胞表达eNOS ,加入不同浓度西立伐他汀后 ,用RT PCR法检测eNOSmRNA ,硝酸还原酶法测定培养基中NO量。以脂多糖 (LPS)及西立伐他汀加入ECV 3 0 4细胞后 ,用RT PCR法检测ICAM 1mRNA ,并测定黏附的THP 1细胞量。结果　随着西立伐他汀浓度增加 ,内皮细胞eNOSmRNA水平增加 ,0 0 1 ,0 1 ,1 0 μmol/L时分别增加 5 0 %,1 5 0 %,3 0 0 %,P均 <0 0 5。培养液中NO亦相应增加 ,0 0 1 ,0 1 ,1 0 μmol/L时分别增加 2 6 7%,92 3 %,2 3 0 %,P <0 0 5。西立伐他汀浓度为 0 1 ,1 0 μmol/L时 ,ICAM 1mRNA分别从 70 7± 1 0 4降至 5 6 2± 6 5 ,3 5 8± 4 2 ,P <0 0 5。黏附于ECV 3 0 4细胞的THP 1细胞在 1 0 μmol/L时被抑制 2 6 %,P <0 0 5。结论　西立伐他汀能诱导内皮细胞eNOS基因的表达及增加NOS活力 ;抑制内皮细胞表达ICAM 1mRNA及THP 1细胞黏附于内皮细胞

引用

页码：55 / 58

页数：4

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