Journal
NATURE REVIEWS MOLECULAR CELL BIOLOGY
Volume 13, Issue 2, Pages 127-133Publisher
NATURE PORTFOLIO
DOI: 10.1038/nrm3265
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Funding
- Ontario Research Fund
- Canadian Institutes of Health Research (CIHR)
- US National Institutes of Health
- Howard Hughes Medical Institute
- Muscular Dystrophy Association
- Canada Research Chair Program
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Satellite cells are a heterogeneous population of stem and progenitor cells that are required for the growth, maintenance and regeneration of skeletal muscle. The transcription factors paired-box 3 (PAX3) and PAX7 have essential and overlapping roles in myogenesis. PAX3 acts to specify embryonic muscle precursors, whereas PAX7 enforces the satellite cell myogenic programme while maintaining the undifferentiated state. Recent experiments have suggested that PAX7 is dispensable in adult satellite cells. However, these findings are controversial, and the issue remains unresolved.
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