诱导成人骨髓基质细胞成为神经干细胞及其分化的实验研究

被引:10
作者
张卉
王纪佐
孙红宇
张文治
机构
[1] 天津市脑系科中心医院神经内科
[2] 天津医科大学第二医院神经内科
[3] 天津医科大学总医院神经外科
关键词
骨髓基质细胞; 神经分化; 神经干细胞;
D O I
暂无
中图分类号
R741.02 [神经病理学、病因学];
学科分类号
0710 ; 071006 ;
摘要
目的 体外诱导成人骨髓基质细胞 (BMSCs)转化为神经干细胞 (NSCs)进而分化为神经元和胶质细胞。方法 以含有碱性成纤维细胞生长因子 (b FGF)或表皮生长因子 (EGF)加 b FGF或 b FGF、EGF加全反式维甲酸 (ATRA)的培养液培养 BMSCs,进行显微镜观察 ,纤维连接蛋白 (fibronectin)、I型胶原 (collagen )和神经上皮干细胞蛋白 (nestin)免疫组织化学染色和神经元特异烯醇化酶 (NSE) ,胶质纤维酸性蛋白 (GFAP)免疫荧光染色。结果 经诱导物诱导 72 h后 ,fibronectin和 collagen I免疫阳性细胞减少。nestin免疫阳性细胞增多。 7d后 ,其又减少。同时 NSE和 GFAP免疫阳性细胞增多。细胞分化后 ,NSE阳性细胞最多占细胞总数的 2 4 .76 %±2 .72 % ,同时 GFAP阳性细胞占细胞总数的 36 .5 8%± 3.2 6 %。结论  EGF、b FGF、ATRA及适宜的培养液可使BMSCs定向 ,转化为 NSCs,进而分化为神经元和胶质细胞。
引用
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页码:13 / 15
页数:3
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