Document Detail


Stem cell pluripotency: a cellular trait that depends on transcription factors, chromatin state and a checkpoint deficient cell cycle.
MedLine Citation:
PMID:  19562686     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Embryonic stem (ES) and induced pluripotent stem (iPS) cells self-renew and are pluripotent. Differentiation of these cells can yield over 200 somatic cell types, making pluripotent cells an obvious source for regenerative medicine. Before the potential of these cells can be maximally harnessed for clinical applications, it will be necessary to understand the processes that maintain pluripotentiality and signal differentiation. Currently, three unique molecular properties distinguish pluripotent stem cells from somatic cells. These include a unique transcriptional hierarchy that sustains the pluripotent state during the process of self-renewal; a poised epigenetic state that maintains chromatin in a form ready for rapid cell fate decisions; and a cell cycle characterized by an extremely short gap 1 (G1) phase and the near absence of normal somatic cell checkpoint controls. Recently, B-MYB (MYBL2) was implicated in the gene regulation of two pluripotency factors and normal cell cycle progression. In this article, the three pluripotency properties and the potential role of B-Myb to regulate these processes will be discussed.
Authors:
Kenneth R Boheler
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Publication Detail:
Type:  Journal Article; Research Support, N.I.H., Intramural; Review    
Journal Detail:
Title:  Journal of cellular physiology     Volume:  221     ISSN:  1097-4652     ISO Abbreviation:  J. Cell. Physiol.     Publication Date:  2009 Oct 
Date Detail:
Created Date:  2009-07-29     Completed Date:  2009-08-28     Revised Date:  2012-04-18    
Medline Journal Info:
Nlm Unique ID:  0050222     Medline TA:  J Cell Physiol     Country:  United States    
Other Details:
Languages:  eng     Pagination:  10-7     Citation Subset:  IM    
Copyright Information:
Copyright 2009 Wiley-Liss, Inc.
Affiliation:
National Institute on Aging, NIH, Baltimore, Maryland 21224, USA. bohelerk@grc.nia.nih.gov
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MeSH Terms
Descriptor/Qualifier:
Animals
Cell Cycle*
Chromatin / metabolism*
Epigenesis, Genetic
Humans
Pluripotent Stem Cells / cytology*,  metabolism*
Transcription Factors / metabolism*
Grant Support
ID/Acronym/Agency:
Z01 AG000847-01/AG/NIA NIH HHS
Chemical
Reg. No./Substance:
0/Chromatin; 0/Transcription Factors

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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