SDF-lα促进骨髓间充质干细胞在脑缺血/再灌注大鼠海马中的存活与分化

来源 :徐州医学院学报 | 被引量 : 0次 | 上传用户:kk77763
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目的 观察基质细胞衍生因子1α(SDF-lα)对脑缺血/再灌注大鼠海马中移植的骨髓间充质干细胞(BMSCs)的作用.方法 培养成年大鼠BMSCs并用BrdU标记,"四血管阻断法"制备大鼠脑缺血/再灌注模型.造模成功大鼠复灌24 h后分为模型对照组、BMSC组和SDF-1α+BMSC组.后两组经尾静脉分别注射BMSCs或SDF-1α +BMSCs,模型对照组同法注射等体积生理盐水.分别于注射后存活1、3、7天和1个月时,应用免疫荧光化学法检测大鼠海马区域BrdU标记阳性细胞的表达情况.结果 免疫荧光染色显示:①模型对照组大鼠在移植不同时间点海马结构中均未见BrdU标记的阳性细胞,但BMSC组和SDF-1α+BMSC组的BrdU标记阳性细胞数随移植时间延长而逐渐增多,且各时间点间差异均有统计学意义(P
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