VEGF诱导人嗅黏膜间充质干细胞向内皮细胞分化

来源 :中国医师协会神经修复学专业委员会第四届年会暨国际高峰论坛 | 被引量 : 0次 | 上传用户:fsch2000
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  目的:探讨人嗅黏膜间充质干细胞体外诱导分化为血管内皮细胞的能力,并对分化后血管内皮细胞进行鉴定。方法:采用组织贴壁法培养人嗅黏膜间充质干细胞,利用VEGF 诱导人嗅黏膜间充质干细胞向内皮细胞分化,NO 检测试79剂盒检测分化后细胞的NO 分泌量,体外血管形成实验观察细胞在基质胶上形成毛细血管样网状结构的能力。结果:培养的细胞贴壁生长,阳性表达CD73、CD90、CD105,阴性表达CD34、CD45、CD11b、CD19 和HLA-DR,诱导后细胞表达CD31、CD34、vWF,诱导组细胞的上清液中NO 含量高于对照组,将诱导组细胞接种于基质胶后,形成管样结构,管样结构连接成网。结论:VEGF 可诱导人嗅黏膜间充质干细胞分化为血管内皮细胞,诱导后的细胞能分泌NO,并能在基质胶上形成毛细血管样网状结构。
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