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早产胎儿脐血和脐带间充质干细胞分离培养的比较

Shandong Medical Journal(2010)

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Abstract
目的对比早产胎儿脐血和脐带间充质干细胞(MSCs)的培养成功率,探讨早产胎儿MSCs获取的最佳途径。方法无菌条件下采集早产胎儿(不足37周)脐血,密度梯度离心法分离单个核细胞,采用贴壁培养法获得脐血MSCs;将脐带剪成1 mm3大小组织块,采用组织块贴壁法获得脐带MSCs;分别观察脐血和脐带MSCs的生物学特性,免疫荧光法检测MSCs表面标记物的表达情况。结果采用MesencultTM培养基,早产胎儿脐血MSCs培养成功率为100%,脐带MSCs培养成功率为67%,明显低于脐血MSCs;早产胎儿脐血和脐带MSCs均表达CD29、CD44和CD90,不表达造血干细胞表面标志CD34。结论早产胎儿脐血中较易获得MSCs,为临床移植治疗提供了理想的细胞来源。
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Key words
premature fetus,mesenchymal stem cells,umbilical cord blood,umbilical cord
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