Cited by 467Muscle Physiology and DisordersTGF-β signaling in diseasesNeurogenetic and Muscular Disorders Research

BMP signaling controls muscle mass

Open access
Sartori, Roberta, Schirwis, Elija, Blaauw, Bert, Bortolanza, Sergia, Zhao, Jinghui, Enzo, Elena, Stantzou, Amalia, Mouisel, Etienne +8 more·2013·Nature Genetics

Abstract

Cell size is determined by the balance between protein synthesis and degradation. This equilibrium is affected by hormones, nutrients, energy levels, mechanical stress and cytokines. Mutations that inactivate myostatin lead to excessive muscle growth in animals and humans, but the signals and pathways responsible for this hypertrophy remain largely unknown. Here we show that bone morphogenetic protein (BMP) signaling, acting through Smad1, Smad5 and Smad8 (Smad1/5/8), is the fundamental hypertrophic signal in mice. Inhibition of BMP signaling causes muscle atrophy, abolishes the hypertrophic phenotype of myostatin-deficient mice and strongly exacerbates the effects of denervation and fasting. BMP-Smad1/5/8 signaling negatively regulates a gene (Fbxo30) that encodes a ubiquitin ligase required for muscle loss, which we named muscle ubiquitin ligase of the SCF complex in atrophy-1 (MUSA1). Collectively, these data identify a critical role for the BMP pathway in adult muscle maintenance, growth and atrophy.

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Crossref · 10.1038/ng.2772

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  • BMP signaling converges on Smad4 and controls muscle mass.

    “Another pathway that converges on Smad4 and controls muscle mass is BMP signaling19,20.”
  • Inhibition of Atrogin-1 does not block denervation- and glucocorticoid-induced muscle loss and does not protect from aging sarcopenia.

    “Inhibition of Atrogin-1 does not block denervation- and glucocorticoids-induced muscle loss19,44 and does not protect from aging sarcopenia46.”
  • Follistatin-mediated hypertrophy not only blocks myostatin signaling but simultaneously stimulates Smad1/5/8 activation.

    “Consistently, follistatin-mediated hypertrophy not only blocks myostatin signaling but simultaneously stimulates Smad1/5/8 activation19,22,23.”
  • Specific ablation of Smad4 in the skeletal muscle of mice did not promote hypertrophy but caused atrophy and weakness.

    “Interestingly, specific ablation of Smad4 in the skeletal muscle of mice did not promote hypertrophy but caused atrophy and weakness19.”
  • Overexpression of the BMP antagonist noggin reverted the hypertrophic phenotype of myostatin knockout mice, arguing for genetic epistasis between the activin/myostatin and BMP pathways in muscle.

    “The finding that overexpression of the BMP antagonist noggin reverted the hypertrophic phenotype of myostatin knockout mice, strongly argues in favor of genetic epistasis between the activin/myostatin and BMP pathways in muscle.”

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Authors
Sartori, R., Schirwis, E., Blaauw, B., Bortolanza, S., Zhao, J., Enzo, E., Stantzou, A., Mouisel, E., Toniolo, L., Ferry, A., Stricker, S., Goldberg, A. L., Dupont, S., Piccolo, S., Amthor, H., & Sandri, M.
Affiliations
  • University of Padua (IT)
  • Centre National de la Recherche Scientifique (FR)
  • Harvard University (US)
  • Max Planck Institute for Molecular Genetics (DE)
  • Hôpital Necker-Enfants Malades (FR)
Corresponding author
  • Piccolo, Stefano
  • Amthor, Helge
  • Sandri, Marco
Venue
Nature Genetics
Published
2013-09-29
Volume
45
Issue
11
Pages
1309-1318
ISSN
  • 1061-4036 (ISSN-L)
  • 1546-1718
OpenAlex
W1997014674
Cited by
467
References
35
Citations by year
2026: 29 · 2025: 26 · 2024: 25 · 2023: 31 · 2022: 43 · 2021: 37 · 2020: 38 · 2019: 42 · 2018: 37 · 2017: 33 · 2016: 45 · 2015: 41 · 2014: 35 · 2013: 4
FWCI
18.65
Type
journal article
Language
en
Open access
Locations
  • Nature Genetics (publishedVersion)
  • PubMed (publishedVersion)
  • MDC Repository (Max-Delbrueck-Center for Molecular Medicine) (submittedVersion)
  • IRIS UNIMORE (University of Modena and Reggio Emilia) (submittedVersion, cc-by)
  • Padua Research Archive (University of Padova) (submittedVersion)
  • Zenodo (CERN European Organization for Nuclear Research) (submittedVersion, other-oa)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › TGF-β signaling in diseases
  • Health Sciences › Medicine › Genetics › Neurogenetic and Muscular Disorders Research
Keywords
BMP signaling, muscle hypertrophy, muscle atrophy, myostatin, Smad1/5/8, ubiquitin ligase, denervation, fasting, muscle mass, protein synthesis and degradation
MeSH terms
Animals, Cell Line, Enzyme Activation, Humans, Mice, Inbred C57BL, Muscular Atrophy, Signal Transduction, Mice, Knockout, Muscle, Skeletal, Bone Morphogenetic Proteins, Gene Expression Profiling, RNA Interference, RNA, Small Interfering, Ubiquitin-Protein Ligases, Mice, Smad1 Protein, Smad4 Protein, Smad5 Protein, Smad8 Protein, Myostatin, HEK293 Cells

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