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CXCR-4/SDF-1轴在BMSCs向新生小鼠缺氧缺血脑组织定向迁移的潜在机制研究 被引量:4

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摘要 目的研究趋化因子受体/间质衍生因子(CXCR-4/SDF-1)轴在骨髓间充质干细胞(BMSCs)向新生小鼠缺氧缺血脑损伤(HIBD)组织定向迁移过程中可能存在的潜在作用机制。方法原代分离培养与鉴定BMSCs,建立新生小鼠HIBD模型,取造模后脑组织上清液与BMSCs共培养于Transwell双室培养体系观察BMSCs对HIBD脑组织的趋向效应,ELISA方法检测造模后脑组织上清液中SDF-1蛋白表达水平,免疫细胞化学方法检测BMSCs中CXCR-4的蛋白表达。结果流式细胞术结果证实所培养BMSCs高表达CD29、CD71和CD105,不表达CD34,符合BMSCs特征;Transwell检测结果发现BMSCs向造模脑组织上清液发生明显细胞迁移(P<0.01);ELISA证实脑组织上清液中SDF-1水平显著提高,同时BMSCs高表达CXCR-4(P<0.01)。结论 BMSCs具有向HIBD脑组织定向迁移能力,CXCR-4/SDF-1轴在该定向迁移过程中可能发挥重要作用。
出处 《中国医药指南》 2010年第14期54-56,共3页 Guide of China Medicine
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同被引文献101

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