Cited by 573Muscle Physiology and DisordersNutrition and Health in AgingAdipose Tissue and Metabolism

p38 MAPK signaling underlies a cell-autonomous loss of stem cell self-renewal in skeletal muscle of aged mice

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Bernet, Jennifer D, Doles, Jason D, Hall, John K, Kelly Tanaka, Kathleen, Carter, Thomas A, Olwin, Bradley B·2014·Nature Medicine

Abstract

Skeletal muscle aging results in a gradual loss of skeletal muscle mass, skeletal muscle function and regenerative capacity, which can lead to sarcopenia and increased mortality. Although the mechanisms underlying sarcopenia remain unclear, the skeletal muscle stem cell, or satellite cell, is required for muscle regeneration. Therefore, identification of signaling pathways affecting satellite cell function during aging may provide insights into therapeutic targets for combating sarcopenia. Here, we show that a cell-autonomous loss in self-renewal occurs via alterations in fibroblast growth factor receptor-1, p38α and p38β mitogen-activated protein kinase signaling in satellite cells from aged mice. We further demonstrate that pharmacological manipulation of these pathways can ameliorate age-associated self-renewal defects. Thus, our data highlight an age-associated deregulation of a satellite cell homeostatic network and reveal potential therapeutic opportunities for the treatment of progressive muscle wasting.

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Crossref · 10.1038/nm.3465

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  • Oxidative stress present in the elderly dysregulates typical functions and processes of satellite cells such as proliferation, fibrosis, and differentiation involving Notch, Wnt, p38/MAPK, and JAK-STAT3 signaling pathways.

    “In addition, Os present in the elderly dysregulates the typical functions and processes of satellite cells such as proliferation, fibrosis, and differentiation involving Notch, Wnt, p38/MAPK, and the JAK-STAT3 signaling pathways [72, 123–125].”

    From The critical role of oxidative stress in sarcopenic obesity (2021) · cites this paper as [124]

  • In aging, the capacity of MuSCs to repair injured muscle declines markedly.

    “With aging, muscle tissue homeostasis is progressively disrupted and the ability of MuSCs to repair injured muscle markedly declines.”
  • MuSCs from older donors have marked deficits in self-renewal, expansion, and contribution to mature myofiber formation.

    “MuSCs from older donors exhibited marked deficits both in self-renewal and expansion and in their contributions to mature myofiber formation, the two hallmarks of stem cell function25,29,55,56.”
  • Together, these cell-autonomous changes restrict MuSC self-renewal and regenerative capacity.

    “Cumulatively, these cell autonomous alterations limit MuSC self-renewal and capacity for regeneration25,29,55,56.”
  • Inhibiting aberrant intrinsic signaling pathways, including p38α/β MAPK and Jak2-Stat3, can rejuvenate the regenerative capacity of aged and geriatric MuSCs.

    “Rejuvenation of the regenerative capacity of aged and geriatric MuSC populations can be achieved by biochemical or genetic inhibition of aberrantly regulated intrinsic MuSC signal transduction pathways, including the p38α/β MAPK, and Jak2–Stat3 signaling axes25,29,55,56.”

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Authors
Bernet, J. D., Doles, J. D., Hall, J. K., Kelly Tanaka, K., Carter, T. A., & Olwin, B. B.
Affiliations
University of Colorado Boulder (US)
Corresponding author
Olwin, Bradley B
Venue
Nature Medicine
Published
2014-02-16
Volume
20
Issue
3
Pages
265-271
ISSN
  • 1078-8956 (ISSN-L)
  • 1546-170X
OpenAlex
W2059165104
Cited by
573
References
49
Citations by year
2026: 36 · 2025: 32 · 2024: 36 · 2023: 40 · 2022: 38 · 2021: 58 · 2020: 58 · 2019: 44 · 2018: 58 · 2017: 44 · 2016: 59 · 2015: 46 · 2014: 23 · 2013: 1
FWCI
23.49
Type
journal article
Language
en
Open access
Locations
  • Nature Medicine (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • National Institute on Aging (AG040074, R01AG040074)
  • National Institute of General Medical Sciences (T32GM007135)
  • National Institute of Arthritis and Musculoskeletal and Skin Diseases (AR49446, R01AR049446)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Health Sciences › Medicine › Physiology › Nutrition and Health in Aging
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
Keywords
p38 MAPK signaling, skeletal muscle aging, age-related sarcopenia, satellite cells, muscle stem cells, stem cell self-renewal, FGF receptor 1, p38α, p38β, muscle regeneration
MeSH terms
Aging, Animals, Environment, Female, Flow Cytometry, Ligands, Mice, Inbred C57BL, Mice, Inbred DBA, Phenotype, Stem Cells, Time Factors, Signal Transduction, Gene Expression Regulation, Enzymologic, Fibroblast Growth Factor 1, Cell Transplantation, Muscle, Skeletal, Oligonucleotide Array Sequence Analysis, Satellite Cells, Skeletal Muscle, Mitogen-Activated Protein Kinase 11, Mitogen-Activated Protein Kinase 14, Cell Proliferation, Mice

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