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科学通报  2011 

体外诱导脑膜来源的iPS细胞形成神经样的细胞

, PP. 567-572

Keywords: iPS,细胞,ES,细胞,脑膜,神经分化,无血清培养基,单层贴壁培养

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Abstract:

单层贴壁的培养方法能够在无血清的情况下将胚胎干细胞(ES细胞)诱导分化形成神经样的细胞.重编程小鼠脑膜细胞产生的多能干细胞(iPS细胞)C5,也可以运用诱导ES细胞神经发生的方法来诱导神经特异性标志基因Sox1,Sox3,Pax6,Nestin和Tuj1的表达;与之相反,随着分化的进行,ES细胞特异性的标志基因Oct4和Nanog的表达量迅速降低.通过细胞免疫荧光技术,可以检测到大量Pax6和Nestin阳性的神经前体细胞的存在,并且随着时间的推移,这些前体细胞能够分化形成3类中枢神经系统的细胞,分别是神经元、星形胶质细胞和少突胶质细胞.体外诱导iPS细胞形成的个体特异性细胞可以作为研究遗传类疾病机制的工具,并且可用来治疗机能紊乱和年老的神经组织.此外,脑膜细胞由于高表达胚性调控因子Sox2,更容易被逆分化形成iPS细胞,为此将更加胜任于临床治疗应用.

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