Cited by 873Muscle Physiology and DisordersCytokine Signaling Pathways and InteractionsMuscle metabolism and nutrition

Interleukin-6 Is an Essential Regulator of Satellite Cell-Mediated Skeletal Muscle Hypertrophy

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Serrano, Antonio L., Baeza-Raja, Bernat, Perdiguero, Eusebio, Jardí, Mercè, Muñoz-Cánoves, Pura·2008·Cell Metabolism

Abstract

Skeletal muscles adapt to increasing workload by augmenting their fiber size, through mechanisms that are poorly understood. This study identifies the cytokine interleukin-6 (IL-6) as an essential regulator of satellite cell (muscle stem cell)-mediated hypertrophic muscle growth. IL-6 is locally and transiently produced by growing myofibers and associated satellite cells, and genetic loss of IL-6 blunted muscle hypertrophy in vivo. IL-6 deficiency abrogated satellite cell proliferation and myonuclear accretion in the preexisting myofiber by impairing STAT3 activation and expression of its target gene cyclin D1. The growth defect was indeed muscle cell intrinsic, since IL-6 loss also affected satellite cell behavior in vitro, in a STAT3-dependent manner. Myotube-produced IL-6 further stimulated cell proliferation in a paracrine fashion. These findings unveil a role for IL-6 in hypertrophic muscle growth and provide mechanistic evidence for the contribution of satellite cells to this process.

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Registry

Crossref · 10.1016/j.cmet.2007.11.011

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54 of 54 references verified0 citation errors · 0 not checkable

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Authors
Serrano, A. L., Baeza-Raja, B., Perdiguero, E., Jardí, M., & Muñoz-Cánoves, P.
Affiliations
Universitat Pompeu Fabra (ES)
Venue
Cell Metabolism
Publisher
Elsevier BV
Published
2008-01
Volume
7
Issue
1
Pages
33-44
ISSN
1550-4131 (ISSN-L)
OpenAlex
W1997149085
Cited by
873
References
57
Citations by year
2026: 43 · 2025: 56 · 2024: 42 · 2023: 55 · 2022: 71 · 2021: 73 · 2020: 48 · 2019: 55 · 2018: 50 · 2017: 54 · 2016: 45 · 2015: 69 · 2014: 42 · 2013: 48 · 2012: 51
FWCI
9.47
Type
journal article
Language
en
Open access
Locations
  • Cell Metabolism (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Association Française contre les Myopathies (Marató-TV3)
  • Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas
  • Muscular Dystrophy Association
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Health Sciences › Medicine › Oncology › Cytokine Signaling Pathways and Interactions
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
Keywords
interleukin-6, satellite cells, skeletal muscle hypertrophy, muscle stem cells, STAT3 signaling, cyclin D1, myonuclear accretion, satellite cell proliferation, paracrine signaling, myofiber growth, cytokine deficiency
MeSH terms
Animals, Cell Line, Cell Movement, Enzyme-Linked Immunosorbent Assay, Hypertrophy, Immunohistochemistry, Muscular Diseases, Blotting, Western, Interleukin-6, Mice, Knockout, Muscle, Skeletal, Muscle Fibers, Skeletal, Cyclin D1, Reverse Transcriptase Polymerase Chain Reaction, Myoblasts, Satellite Cells, Skeletal Muscle, Cell Proliferation, STAT3 Transcription Factor, Mice

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