Document Detail

Cell cycle control of embryonic stem cells.
MedLine Citation:
PMID:  17142847     Owner:  NLM     Status:  MEDLINE    
Embryonic stem cells have the capacity for unlimited proliferation while retaining their potential to differentiate into a wide variety of cell types. Murine, primate and human embryonic stem cells (ESCs) exhibit a very unusual cell cycle structure, characterized by a short G1 phase and a high proportion of cells in S-phase. In the case of mESCs, this is associated with a unique mechanism of cell cycle regulation, underpinned by the precocious activity of cyclin dependent protein kinase (Cdk) activities. As ES cells differentiate, their cell cycle structure changes dramatically so as to incorporate a significantly longer G1 phase and their mechanism of cell cycle regulation changes to that typically seen in other mammalian cells. The unique cell cycle structure and mechanism of cell cycle control indicates that the cell cycle machinery plays a role in establishment or maintenance of the stem cell state. This idea is supported by the frequent involvement of cell cycle regulatory molecules in cell immortalization.
Josephine White; Stephen Dalton
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Publication Detail:
Type:  Journal Article; Review    
Journal Detail:
Title:  Stem cell reviews     Volume:  1     ISSN:  1550-8943     ISO Abbreviation:  Stem Cell Rev     Publication Date:  2005  
Date Detail:
Created Date:  2006-12-04     Completed Date:  2007-01-16     Revised Date:  2009-12-11    
Medline Journal Info:
Nlm Unique ID:  101255952     Medline TA:  Stem Cell Rev     Country:  United States    
Other Details:
Languages:  eng     Pagination:  131-8     Citation Subset:  IM    
Department of Molecular Biosciences, University of Adelaide, South Australia, 5005.
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MeSH Terms
Cell Cycle*
Cell Differentiation
Embryonic Stem Cells / cytology*,  physiology
Signal Transduction

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

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