他汀类药物对外周血内皮祖细胞数量和功能的影响

被引:21
作者
陈君柱
张芙荣
朱建华
朱军慧
谢旭东
孙坚
尚云鹏
郭晓纲
机构
[1] 浙江大学医学院附属第一医院心内科暨心血管病研究所
[2] 浙江大学医学院附属第一医院心内科暨心血管病研究所 杭州
[3] 杭州
关键词
降血脂药; 干细胞; 冠状动脉疾病;
D O I
暂无
中图分类号
R96 [药理学];
学科分类号
100602 ; 100706 ;
摘要
目的 观察氟伐他汀和辛伐他汀对外周血内皮祖细胞 (endothelialprogenitorcell,EPC)的影响。方法 采用密度梯度离心法从外周血获取单个核细胞 ,将其接种在人纤维连接蛋白包被培养板 ,培养 7d后 ,收集贴壁细胞 ,加入不同浓度氟伐他汀 (分别为 0 0 1、0 1、1 0、10 μmol/L)和辛伐他汀 (1 0 μmol/L)培养一定的时间 (6、12、2 4h和 4 8h)。激光共聚焦显微镜鉴定FITC UEA Ⅰ和DiI acLDL双染色阳性细胞为正在分化的EPC ,并在倒置荧光显微镜下计数。然后分别采用MTT比色法、改良的Boyden小室和黏附能力测定实验来观察EPC的增殖能力、迁移能力和黏附能力。结果 氟伐他汀显著增加外周血EPC数量 ,并且EPC数量随氟伐他汀浓度增加及作用时间延长而增加 ,1 0 μmol/L浓度氟伐他汀作用 2 4h对EPC数量的影响最为显著 (较对照组增加了 1 5倍 ,P <0 0 5 )。氟伐他汀和辛伐他汀也显著改善了外周血EPC的黏附能力、迁移能力和增殖能力。相同浓度的氟伐他汀和辛伐他汀 (1 0 μmol/L)对EPC数量和功能的影响无显著性差异 (P >0 0 5 )。结论结果提示他汀类药物可增加EPC的数量且伴随着EPC功能的改善。
引用
收藏
页码:62 / 66
页数:5
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