PreprintCited by 724Muscle Physiology and DisordersCongenital heart defects researchDevelopmental Biology and Gene Regulation

MyoD is required for myogenic stem cell function in adult skeletal muscle

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Megeney, L A, Kablar, B, Garrett, K, Anderson, J E, Rudnicki, M A·1996·Genes & Development

Abstract

To investigate the function of MyoD in adult skeletal muscle, we interbred MyoD mutant mice with mdx mice, a model for Duchenne and Becker muscular dystrophy. Mice lacking both MyoD and dystrophin displayed a marked increase in severity of myopathy leading to premature death, suggesting a role for MyoD in muscle regeneration. Examination of MyoD mutant muscle revealed elevated numbers of myogenic cells; however, myoblasts derived from these cells displayed normal differentiation potential in vitro. Following injury, MyoD mutant muscle was severely deficient in regenerative ability, and we observed a striking reduction in the in vivo proliferation of myogenic cells during regeneration. Therefore, we propose that the failure of MyoD-deficient muscle to regenerate efficiently is not caused by a reduction in numbers of satellite cells, the stem cells of adult skeletal muscle, but results from an increased propensity for stem-cell self-renewal rather than progression through the myogenic program.

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  • Murine muscle stem cells (MuSCs) experience a transition from quiescence to activation that is required for regeneration.

    “Murine muscle stem cells (MuSCs) experience a transition from quiescence to activation that is required for regeneration, but it remains unknown if the trajectory and dynamics of activation change with age.”

    From Aging induces aberrant state transition kinetics in murine muscle stem cells (2020) · cites this paper as Megeney et al., 1996

  • Impaired stem cell activation impairs regenerative potential in multiple tissues.

    “Impaired stem cell activation has been shown to impair regenerative potential in multiple tissues (Megeney et al., 1996; Zou et al., 2018).”

    From Aging induces aberrant state transition kinetics in murine muscle stem cells (2020) · cites this paper as Megeney et al., 1996

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Research works printed but not linked: 3

  1. Grounds, M.D. and Z. Yablonka-Reuvini. 1993. Molecular and cellular biology of muscle regeneration. In Molecular and cellular biology o f muscular dystrophy (ed. T. Partridge), pp. 210-256.
  2. Hauschka, S.D. 1994. The embryonic origin of muscle. In M y - ology 2nd ed. (ed. A.G. Engel and C. Franzini-Armstrong), pp. 3-73. McGraw-Hill, New York, NY.
  3. McGeachie, J.K. and M.D. Grounds. 1990. Applications of an autoradiographic model of skeletal muscle myogenesis in vivo. In Pathogenesis and therapy of Duchenne and Becker muscular dystrophy (ed. B.A. Kakukas and F.L. Mastaglial, pp. 15 1-1 70. Raven Press, NY.

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Authors
Megeney, L. A., Kablar, B., Garrett, K., Anderson, J. E., & Rudnicki, M. A.
Affiliations
McMaster University (CA)
Venue
Genes & Development
Published
1996-05-15
Volume
10
Issue
10
Pages
1173-1183
ISSN
  • 0890-9369 (ISSN-L)
  • 1549-5477
OpenAlex
W2091101448
Cited by
724
References
46
Citations by year
2026: 7 · 2025: 11 · 2024: 9 · 2023: 20 · 2022: 18 · 2021: 18 · 2020: 30 · 2019: 26 · 2018: 26 · 2017: 25 · 2016: 30 · 2015: 28 · 2014: 34 · 2013: 30 · 2012: 27
Type
posted content
Language
en
Open access
Locations
  • Genes & Development (publishedVersion)
  • PubMed (publishedVersion)
  • HighWire Press Open Archive (submittedVersion)
Funders
  • Muscular Dystrophy Association
  • Manitoba Health Research Council
  • Medical Research Council Canada
  • Medical Research Council
  • National Cancer Institute
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
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
Keywords
MyoD, myogenic stem cells, satellite cells, skeletal muscle regeneration, Duchenne muscular dystrophy, Becker muscular dystrophy, mdx mice, dystrophin, myogenesis, stem cell self-renewal, muscle damage
MeSH terms
Animals, Cell Division, Cells, Cultured, Regeneration, Stem Cells, Dystrophin, Gene Deletion, MyoD Protein, Mice, Inbred mdx, Muscle, Skeletal, Mice

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