Document Detail


Delineating the cellular pathways of hematopoietic lineage commitment.
MedLine Citation:
PMID:  18752972     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The prevailing model for adult hematopoiesis postulates that the first lineage commitment step results in a strict separation of common myeloid and common lymphoid pathways. However, the recent identification of granulocyte/monocyte (GM)-lymphoid restricted lymphoid-primed multipotent progenitors (LMPPs) and primitive common myeloid progenitors (CMPs) within the "HSC" compartment provide compelling support for establishment of independent GM-megakaryocyte/erythroid (GM-MkE) and GM-lymphoid commitment pathways as decisive early lineage fate decisions. These changes in lineage potentials are corroborated by corresponding changes in multilineage transcriptional priming, as LMPPs down-regulate MkE priming but become GM-lymphoid transcriptionally primed, whereas CMPs are GM-MkE primed. These distinct biological and molecular relationships are established already in the fetal liver.
Authors:
Sidinh Luc; Natalija Buza-Vidas; Sten Eirik W Jacobsen
Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't; Review     Date:  2008-08-27
Journal Detail:
Title:  Seminars in immunology     Volume:  20     ISSN:  1044-5323     ISO Abbreviation:  Semin. Immunol.     Publication Date:  2008 Aug 
Date Detail:
Created Date:  2008-09-10     Completed Date:  2009-01-02     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9009458     Medline TA:  Semin Immunol     Country:  England    
Other Details:
Languages:  eng     Pagination:  213-20     Citation Subset:  IM    
Affiliation:
Haematopoietic Stem Cell Laboratory, Weatherall Institute of Molecular Medicine, John Radcliffe Hospital, University of Oxford, Oxford OX3 9DS, UK.
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MeSH Terms
Descriptor/Qualifier:
Adult Stem Cells / classification
Animals
Cell Differentiation / physiology*
Cell Lineage / physiology*
Fetal Stem Cells / classification
Hematopoietic Stem Cells / classification,  cytology*,  physiology*
Humans
Models, Biological*
Signal Transduction
Grant Support
ID/Acronym/Agency:
//Medical Research Council

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