Generation of Integration-free and Region-Specific Neural Progenitors from Primate Fibroblasts

Autor: Jianfeng Lu, Huisheng Liu, Cindy Tzu-Ling Huang, Hong Chen, Zhongwei Du, Yan Liu, Mohammad Amin Sherafat, Su-Chun Zhang
Jazyk: angličtina
Rok vydání: 2013
Předmět:
Zdroj: Cell Reports, Vol 3, Iss 5, Pp 1580-1591 (2013)
Druh dokumentu: article
ISSN: 2211-1247
DOI: 10.1016/j.celrep.2013.04.004
Popis: Postnatal and adult human and monkey fibroblasts were infected with Sendai virus containing the Yamanaka factors for 24 hr, then they were cultured in a chemically defined medium containing leukemia inhibitory factor (LIF), transforming growth factor (TGF)-β inhibitor SB431542, and glycogen synthase kinase (GSK)-3β inhibitor CHIR99021 at 39°C for inactivation of the virus. Induced neural progenitor (iNP) colonies appeared as early as day 13 and can be expanded for >20 passages. Under the same defined condition, no induced pluripotent stem cell (iPSC) colonies formed at either 37°C or 39°C. The iNPs predominantly express hindbrain genes and differentiate into hindbrain neurons, and when caudalized, they produced an enriched population of spinal motor neurons. Following transplantation into the forebrain, the iNP-derived cells retained the hindbrain identity. The ability to generate defined, integration-free iNPs from adult primate fibroblasts under a defined condition with predictable fate choices will facilitate disease modeling and therapeutic development.
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