Study on phenotype and neural specific molecules expression in freshly isolated and cultured mononuclear cells derived from human umbilical cord blood cells

2004 
目的 探讨脐血单个核细胞(MNCs)培养前后的形态改变及神经细胞特有分子表达.方法采用倒置显微镜观察培养过程中脐血MNCs形态的变化,RT-PCR方法检测MNCs培养前后神经细胞标志物nestin,NF-M及MAP2 mRNA的表达.结果培养前,脐血MNCs胞体小呈圆形,培养后细胞胞体变大,有突起形成,相邻细胞连接成网状,类似神经细胞.RT-PCR检测发现,培养前脐血MNCs中的nestin,NF-M及MAP2 mRNA有阳性表达,在培养后表达增强.结论直接分离的脐血MNCs中存在着神经(干)细胞;培养后,出现神经元样细胞,nestin,NF-M及MAP2 mRNA表达增强。
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