LIF-dependent primitive neural stem cells derived from mouse ES cells represent a reversible stage of neural commitment
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AbstractPrimitive neural stem cells (NSCs) define an early stage of neural induction, thus provide a model to understand the mechanism that controls initial neural commitment. In this study, we investigated primitive NSCs derived from mouse embryonic stem cells (ESCs). By genome-wide transcriptional profiling, we revealed their unique signature and depicted the molecular changes underlying critical cell fate transitions during early neural induction at a global level. Together with qRT-PCR analysis, our data illustrated that primitive NSCs retained expression of key pluripotency genes Oct4 and Nanog, while exhibiting repression of other pluripotency-related genes Zscan4, Foxp1 and Dusp9 and up-regulation of neural markers Sox1 and Hes1. The early differentiation feature in primitive NSCs was also supported by their intermediate characters on cell cycle profiles. Moreover, re-plating primitive NSCs back to ESC culture condition could reverse them back to ESC stage, as shown by reversible regulation of marker genes, cell cycle profile changes and enhanced embryoid body formation. In addition, our microarray analysis also identified genes differentially expressed in primitive NSCs, and loss-of-function analysis demonstrated that Hes1 and Ccdc141 play important function at this stage, opening up an opportunity to further understand the regulation of early neural commitment. (C) 2013 Elsevier B.V. All rights reserved.
All Author(s) ListTsang WH, Wang B, Wong WK, Shi S, Chen X, He XJ, Gu S, Hu JB, Wang CD, Liu PC, Lu G, Chen XF, Zhao H, Poon WS, Chan WY, Feng B
Journal nameStem Cell Research
Detailed descriptionTo ORKTS: doi: 10.1016/j.scr.2013.07.007
Volume Number11
Issue Number3
PublisherElsevier: Creative Commons Licenses / Elsevier
Pages1091 - 1102
LanguagesEnglish-United Kingdom
Web of Science Subject CategoriesBiotechnology & Applied Microbiology; BIOTECHNOLOGY & APPLIED MICROBIOLOGY; Cell & Tissue Engineering; CELL & TISSUE ENGINEERING; Cell Biology; CELL BIOLOGY

Last updated on 2021-15-09 at 00:47