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1 result(s) for "罗雪兰 陈伟 莫国君 杨鹏 欧和生"
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人骨髓间充质干细胞定向血管内皮细胞诱导分化前后eNOS表达/活性及其代谢产物的差异
目的探讨人骨髓间充质干细胞(hBMSCs)定向血管内皮细胞诱导分化前后内皮型一氧化氮合酶(eNOS)基因表达、活性及其代谢产物的差异。方法建立hBMSCs定向血管内皮细胞诱导分化系统。应用倒置显微镜观察细胞形态的改变,Transwell实验检测细胞的迁移能力,细胞免疫荧光及Western blot检测eNOS的蛋白表达,ELISA法检测eNOS的活性,硝酸还原法检测细胞培养上清液NO含量。结果与未分化组相比,分化后的细胞形态发生明显改变;细胞的迁移能力增强238.10%(73.000±7.002 vs.21.000±4.359,P〈0.05);eNOS蛋白的表达增加114.72%(0.423±0.011 vs.0.197±0.079,P〈0.05);eNOS的活性增强157.49%(4.967±0.073 vs.1.929±0.103,P〈0.05);NO合成与释放增加155.67%(184.909±1.853 vs.72.323±0.426,P〈0.05)。结论 hBMSCs定向内皮细胞诱导分化后eNOS基因表达增加、活性增强,其代谢产物NO的合成与释放增加。本结果可能为干细胞在心血管疾病等防治提供依据。