Cited by 939Muscle Physiology and DisordersCongenital heart defects researchNeurogenetic and Muscular Disorders Research

Pax7-expressing satellite cells are indispensable for adult skeletal muscle regeneration

Sambasivan, Ramkumar, Yao, Roseline, Kissenpfennig, Adrien, Van Wittenberghe, Laetitia, Paldi, Andràs, Gayraud-Morel, Barbara, Guenou, Hind, Malissen, Bernard +2 more·2011·Development

Abstract

Distinct cell populations with regenerative capacity have been reported to contribute to myofibres after skeletal muscle injury, including non-satellite cells as well as myogenic satellite cells. However, the relative contribution of these distinct cell types to skeletal muscle repair and homeostasis and the identity of adult muscle stem cells remain unknown. We generated a model for the conditional depletion of satellite cells by expressing a human diphtheria toxin receptor under control of the murine Pax7 locus. Intramuscular injection of diphtheria toxin during muscle homeostasis, or combined with muscle injury caused by myotoxins or exercise, led to a marked loss of muscle tissue and failure to regenerate skeletal muscle. Moreover, the muscle tissue became infiltrated by inflammatory cells and adipocytes. This localised loss of satellite cells was not compensated for endogenously by other cell types, but muscle regeneration was rescued after transplantation of adult Pax7(+) satellite cells alone. These findings indicate that other cell types with regenerative potential depend on the presence of the satellite cell population, and these observations have important implications for myopathic conditions and stem cell-based therapeutic approaches.

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Crossref · 10.1242/dev.067587

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54 of 54 references verified0 citation errors · 0 not checkable

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  • Satellite cells are primarily responsible for driving skeletal muscle repair in response to damaging stimuli such as exercise contraction.

    “Muscle stem cells commonly known as satellite cells, are primarily responsible for driving the skeletal muscle repair process to potentially damaging stimuli, such as mechanical stress elicited by exercise contraction.”

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Authors
Sambasivan, R., Yao, R., Kissenpfennig, A., Van Wittenberghe, L., Paldi, A., Gayraud-Morel, B., Guenou, H., Malissen, B., Tajbakhsh, S., & Galy, A.
Affiliations
  • Centre National de la Recherche Scientifique (FR)
  • Inserm (FR)
  • Genethon, 1 bis rue de l'Internationale, Evry, F-91002, France.
Venue
Development
Published
2011-09-01
Volume
138
Issue
17
Pages
3647-3656
ISSN
  • 0950-1991 (ISSN-L)
  • 1477-9129
OpenAlex
W2145163771
Cited by
939
References
54
Citations by year
2026: 34 · 2025: 44 · 2024: 57 · 2023: 64 · 2022: 67 · 2021: 75 · 2020: 69 · 2019: 76 · 2018: 76 · 2017: 68 · 2016: 59 · 2015: 89 · 2014: 62 · 2013: 54 · 2012: 37
FWCI
20.89
Type
journal article
Language
en
Open access
closed
Locations
  • Development (publishedVersion)
  • PubMed (publishedVersion)
  • HAL (submittedVersion)
Funders
Agence Nationale de la Recherche (ANR-06-BLAN-0039)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Congenital heart defects research
  • Health Sciences › Medicine › Genetics › Neurogenetic and Muscular Disorders Research
Keywords
Pax7, satellite cells, skeletal muscle regeneration, muscle stem cells, diphtheria toxin receptor, muscle damage, myotoxins, exercise-induced muscle damage, muscle homeostasis, cell transplantation, inflammatory cell infiltration, adipocyte infiltration, myogenic cells
MeSH terms
Animals, Diphtheria Toxin, Female, Flow Cytometry, Immunohistochemistry, Male, Regeneration, Muscle, Skeletal, Reverse Transcriptase Polymerase Chain Reaction, Satellite Cells, Skeletal Muscle, Mice, PAX7 Transcription Factor

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