Abstract:
:Nonpluripotent neural progenitor cells (NPCs) derived from the human fetal central nervous system were found to express a number of messenger RNA (mRNA) species associated with pluripotency, such as NANOG, REX1, and OCT4. The expression was restricted to small subpopulations of NPCs. In contrast to pluripotent stem cells, there was no coexpression of the pluripotency-associated genes studied. Although the expression of these genes rapidly declined during the in vitro differentiation of NPCs, we found no evidence that the discrete expression was associated with the markers of multipotent neural stem cells (CD133+/CD24lo), the capacity of sphere formation, or high cell proliferation rates. The rate of cell death among NPCs expressing pluripotency-associated genes was also similar to that of other NPCs. Live cell imaging showed that NANOG- and REX1-expressing NPCs continuously changed morphology, as did the nonexpressing cells. Depletion experiments showed that after the complete removal of the subpopulations of NANOG- and REX1-expressing NPCs, the expression of these genes appeared in other NPCs within a few days. The percentage of NANOG- and REX1-expressing cells returned to that observed before depletion. Our results are best explained by a model in which there is stochastic transient expression of pluripotency-associated genes in proliferating NPCs.
journal_name
Stem Cells Devjournal_title
Stem cells and developmentauthors
Vincent PH,Benedikz E,Uhlén P,Hovatta O,Sundström Edoi
10.1089/scd.2016.0346subject
Has Abstractpub_date
2017-06-15 00:00:00pages
876-887issue
12eissn
1547-3287issn
1557-8534journal_volume
26pub_type
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journal_title:Stem cells and development
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journal_title:Stem cells and development
pub_type: 杂志文章,评审
doi:10.1089/scd.2006.15.449
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journal_title:Stem cells and development
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journal_title:Stem cells and development
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journal_title:Stem cells and development
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journal_title:Stem cells and development
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journal_title:Stem cells and development
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journal_title:Stem cells and development
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journal_title:Stem cells and development
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journal_title:Stem cells and development
pub_type: 杂志文章
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