Cited by 109Muscle Physiology and DisordersNutrition and Health in AgingGenetics, Aging, and Longevity in Model Organisms

Apoptosis in capillary endothelial cells in ageing skeletal muscle

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Wang, Huijuan, Listrat, Anne, Meunier, Bruno, Gueugneau, Marine, Coudy‐Gandilhon, Cécile, Combaret, Lydie, Taillandier, Daniel, Polge, Cécile +5 more·2014·Aging Cell

Abstract

The age-related loss of skeletal muscle mass and function (sarcopenia) is a consistent hallmark of ageing. Apoptosis plays an important role in muscle atrophy, and the intent of this study was to specify whether apoptosis is restricted to myofibre nuclei (myonuclei) or occurs in satellite cells or stromal cells of extracellular matrix (ECM). Sarcopenia in mouse gastrocnemius muscle was characterized by myofibre atrophy, oxidative type grouping, delocalization of myonuclei and ECM fibrosis. Terminal deoxynucleotidyl transferase-mediated dUTP nick end-labelling (TUNEL) indicated a sharp rise in apoptosis during ageing. TUNEL coupled with immunostaining for dystrophin, paired box protein-7 (Pax7) or laminin-2α, respectively, was used to identify apoptosis in myonuclei, satellite cells and stromal cells. In adult muscle, apoptosis was not detected in myofibres, but was restricted to stromal cells. Moreover, the age-related rise in apoptotic nuclei was essentially due to stromal cells. Myofibre-associated apoptosis nevertheless occurred in old muscle, but represented < 20% of the total muscle apoptosis. Specifically, apoptosis in old muscle affected a small proportion (0.8%) of the myonuclei, but a large part (46%) of the Pax7(+) satellite cells. TUNEL coupled with CD31 immunostaining further attributed stromal apoptosis to capillary endothelial cells. Age-dependent rise in apoptotic capillary endothelial cells was concomitant with altered levels of key angiogenic regulators, perlecan and a perlecan domain V (endorepellin) proteolytic product. Collectively, our results indicate that sarcopenia is associated with apoptosis of satellite cells and impairment of capillary functions, which is likely to contribute to the decline in muscle mass and functionality during ageing.

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Authors
Wang, H., Listrat, A., Meunier, B., Gueugneau, M., Coudy‐Gandilhon, C., Combaret, L., Taillandier, D., Polge, C., Attaix, D., Lethias, C., Lee, K., Goh, K. L., & Béchet, D.
Affiliations
  • Nanyang Technological University (SG)
  • VetAgro Sup (FR)
  • Université Clermont Auvergne (FR)
  • Centre National de la Recherche Scientifique (FR)
  • Newcastle University Singapore (SG)
Corresponding author
Taillandier, Daniel
Venue
Aging Cell
Publisher
Wiley
Published
2013-11-19
Volume
13
Issue
2
Pages
254-262
ISSN
  • 1474-9718 (ISSN-L)
  • 1474-9726
OpenAlex
W2107698649
Cited by
109
References
46
Citations by year
2026: 8 · 2025: 8 · 2024: 4 · 2023: 5 · 2022: 9 · 2021: 9 · 2020: 7 · 2019: 7 · 2018: 12 · 2017: 9 · 2016: 12 · 2015: 11 · 2014: 8
FWCI
4.62
Type
journal article
Language
en
Open access
Locations
  • Aging Cell (publishedVersion, cc-by)
  • Europe PMC (PubMed Central) (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • HAL (submittedVersion, cc-by-nc-nd)
  • DR-NTU (Nanyang Technological University) (submittedVersion)
  • Newcastle University ePrints (Newcastle Univesity) (cc-by)
Funders
  • Egide Merlion (2007 n°5.03.07)
  • European Commission MyoAge (EC Fp7 CT-223756)
  • Fondation Caisse d'Epargne Rhone Alpes (Sarcopenie n°30)
  • Fonds Européens de Développement Régional (23000422)
  • NTU Academic Research Fund (AcRF) (RG37/07)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Health Sciences › Medicine › Physiology › Nutrition and Health in Aging
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Aging › Genetics, Aging, and Longevity in Model Organisms
Keywords
apoptosis, sarcopenia, skeletal muscle aging, capillary endothelial cells, satellite cells, myonuclei, extracellular matrix fibrosis, perlecan, endorepellin, angiogenesis, muscle atrophy, gastrocnemius
MeSH terms
Aging, Animals, Cell Nucleus, Extracellular Space, Male, Mice, Inbred C57BL, Stromal Cells, Apoptosis, Muscle, Skeletal, Muscle Fibers, Skeletal, Tenascin, Heparan Sulfate Proteoglycans, Satellite Cells, Skeletal Muscle, Endothelial Cells, Mice, Sarcopenia

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