应用人骨髓基质细胞治疗大鼠缺血性脑梗塞的实验研究

被引:21
作者
娄晓辉
张亚卓
孙梅珍
厉俊华
机构
[1] 首都医科大学
[2] 北京市神经外科研究所
[3] 北京市神经外科研究所 级硕士研究生
关键词
骨髓基质细胞; 移植; 缺血性脑梗塞; 神经生长因子;
D O I
暂无
中图分类号
R743.32 [脑血栓形成];
学科分类号
1002 ;
摘要
目的 探索应用骨髓基质细胞治疗缺血性脑梗塞的途径 ,效果 ,机理。方法 从健康人肋骨取原代骨髓基质细胞后扩增。线栓法制作大鼠大脑中动脉缺血模型 (n=5 6 ) ,2小时后再灌注。 2 4小时后治疗组 (n =2 8)尾静脉注射 3× 10 6 骨髓基质细胞 ,对照组 (n =2 8)尾静脉注射 1ml生理盐水。分别采用神经损伤评分 (NSS)检测大鼠神经系统功能 ,ELISA检测BDNF、NGF ,流式细胞仪检测细胞凋亡 ,免疫组化方法检测脑内骨髓基质细胞或骨髓基质细胞来源的细胞。结果 在 7,14 ,2 1,2 8天治疗组的NSS较对照组明显低 (P <0 0 5 ) ,治疗组的BDNF和NGF较对照组明显高(P <0 0 5 ) ,治疗组的凋亡细胞较对照组明显减少 (P <0 0 5 )。在缺血侧半球可以发现骨髓基质细胞 ,并且一部分骨髓基质细胞表达了神经细胞表面标志物。结论 静脉移植骨髓基质细胞治疗缺血性脑梗塞是一种简单有效的方法。骨髓基质细胞移植后缺血脑组织中生长因子的增加对神经功能的恢复起到了重要作用。
引用
收藏
页码:33 / 36
页数:4
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