rdf:type |
|
lifeskim:mentions |
|
pubmed:issue |
8
|
pubmed:dateCreated |
2011-4-18
|
pubmed:abstractText |
Satellite cells (SCs) sustain muscle growth and empower adult skeletal muscle with vigorous regenerative abilities. Here, we report that EZH2, the enzymatic subunit of the Polycomb-repressive complex 2 (PRC2), is expressed in both Pax7+/Myf5? stem cells and Pax7+/Myf5+ committed myogenic precursors and is required for homeostasis of the adult SC pool. Mice with conditional ablation of Ezh2 in SCs have fewer muscle postnatal Pax7+ cells and reduced muscle mass and fail to appropriately regenerate. These defects are associated with impaired SC proliferation and derepression of genes expressed in nonmuscle cell lineages. Thus, EZH2 controls self-renewal and proliferation, and maintains an appropriate transcriptional program in SCs.
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pubmed:commentsCorrections |
|
pubmed:language |
eng
|
pubmed:journal |
|
pubmed:citationSubset |
IM
|
pubmed:chemical |
|
pubmed:status |
MEDLINE
|
pubmed:month |
Apr
|
pubmed:issn |
1549-5477
|
pubmed:author |
|
pubmed:issnType |
Electronic
|
pubmed:day |
15
|
pubmed:volume |
25
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
|
pubmed:pagination |
789-94
|
pubmed:dateRevised |
2011-10-17
|
pubmed:meshHeading |
pubmed-meshheading:21498568-Animals,
pubmed-meshheading:21498568-Cell Differentiation,
pubmed-meshheading:21498568-Cell Proliferation,
pubmed-meshheading:21498568-Chromatin Immunoprecipitation,
pubmed-meshheading:21498568-Flow Cytometry,
pubmed-meshheading:21498568-Fluorescent Antibody Technique,
pubmed-meshheading:21498568-Histone-Lysine N-Methyltransferase,
pubmed-meshheading:21498568-Immunoblotting,
pubmed-meshheading:21498568-In Situ Nick-End Labeling,
pubmed-meshheading:21498568-Mice,
pubmed-meshheading:21498568-Muscle Fibers, Skeletal,
pubmed-meshheading:21498568-PAX7 Transcription Factor,
pubmed-meshheading:21498568-Stem Cells,
pubmed-meshheading:21498568-Transcription, Genetic
|
pubmed:year |
2011
|
pubmed:articleTitle |
Polycomb EZH2 controls self-renewal and safeguards the transcriptional identity of skeletal muscle stem cells.
|
pubmed:affiliation |
Laboratory of Muscle Stem Cells and Gene Regulation, National Institute of Arthritis, Musculoskeletal, and Skin Diseases (NIAMS), National Institutes of Health, Bethesda, Maryland 20892, USA.
|
pubmed:publicationType |
Journal Article,
Research Support, N.I.H., Intramural
|