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黄芪注射液预处理对大鼠骨髓间充质干细胞定向分化的诱导作用研究 被引量:4

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摘要 目的:研究黄芪注射液预处理对大鼠骨髓间充质干细胞(MSCs)分化的定向诱导作用。方法:在无菌条件下从成年大鼠胫骨骨髓分离出MSCs,以1∶3的比例传代,取第3代的细胞,接种后随机将MSCs分为5-氮杂胞苷(5-Aza)诱导分化组、黄芪注射液预处理后5-Aza诱导分化组及对照组,用相差显微镜观察各组细胞形态变化;免疫细胞化学鉴定MSCs表面标志物及心肌特异性肌钙蛋白Ⅰ。结果:培养后的细胞表面CD44表达阳性;黄芪注射液诱导组、5-氮杂胞苷(5-Aza)诱导分化组、黄芪注射液预处理后5-Aza诱导分化组诱导后的细胞形态发生改变,细胞之间形成连接,排列方向趋于一致,免疫组化检测结果显示肌钙蛋白I(cTnI)表达均阳性,黄芪注射液预处理后5-Aza诱导分化组表达相对更强,与其他组相比有显著差异。结论:黄芪注射液可体外诱导MSCs分化为心肌样细胞,采用黄芪注射液预处理后5-Aza诱导分化的方式相对其他的方法更具优势。
作者 陈旭
出处 《吉林中医药》 2012年第9期921-923,共3页 Jilin Journal of Chinese Medicine
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