Cited by 319Muscle Physiology and DisordersNF-κB Signaling PathwaysSignaling Pathways in Disease

Tumor necrosis factor-alpha inhibits myogenic differentiation through myod protein destabilization

Langen, Ramon C. J., van der Velden, Jos L. J., Schols, Annemie M. W. J., Kelders, Marco C. J. M., Wouters, Emiel F. M., Janssen‐Heininger, Yvonne M. W.·2004·The FASEB Journal

Abstract

Tumor necrosis factor alpha (TNFalpha) has been implicated as a mediator of muscle wasting through nuclear factor kappa B (NF-kappaB) -dependent inhibition of myogenic differentiation. The aim of the present study was to identify the regulatory molecule(s) of myogenesis targeted by TNFalpha/NF-kappaB signaling. TNFalpha interfered with cell cycle exit and repressed the accumulation of transcripts encoding muscle-specific genes in differentiating C2C12 myoblasts. Overexpression of a p65 (RelA) mutant lacking the transcriptional activation domain attenuated the TNFalpha-mediated inhibition of muscle-specific gene transcription. The ability of muscle regulatory factor MyoD to induce muscle-specific transcription in 10T1/2 fibroblasts was also disrupted by wild-type p65, demonstrating that NF-kappaB transcriptional activity interferes with the function of MyoD. Inhibition of muscle-specific gene expression by TNFalpha was restored by overexpression of MyoD, whereas endogenous MyoD protein abundance and stability were reduced by TNFalpha through increased proteolysis of MyoD by the ubiquitin proteasome pathway. Last, the inhibitory effects of TNFalpha on myogenic differentiation were demonstrated in a mouse model of skeletal muscle regeneration, in which TNFalpha caused a delay in myoblast cell cycle exit. These results implicate that TNFalpha inhibits myogenic differentiation through destabilizing MyoD protein in a NF-kappaB-dependent manner, which interferes with skeletal muscle regeneration and may contribute to muscle wasting.

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Crossref · 10.1096/fj.03-0251com

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  • TNF-α and IL-6 play an important role in early stages of muscle regeneration following injury by enhancing myoblast proliferation and inhibiting differentiation.

    “Although being considered pro-inflammatory, TNF-α and IL-6 also appear to play important role in the early stages of muscle regeneration following injury by enhancing myoblast proliferation and inhibiting differentiation [73,74,75].”

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Authors
Langen, R. C. J., van der Velden, J. L. J., Schols, A. M. W. J., Kelders, M. C. J. M., Wouters, E. F. M., & Janssen‐Heininger, Y. M. W.
Affiliations
  • Maastricht University (NL)
  • Department of Respiratory Medicine Maastricht University Maastricht The Netherlands
  • Department of Pathology University of Vermont Burlington Vermont USA
Venue
The FASEB Journal
Publisher
Wiley
Published
2004-02
Volume
18
Issue
2
Pages
227-237
ISSN
  • 0892-6638 (ISSN-L)
  • 1530-6860
OpenAlex
W2057070304
Cited by
319
References
51
Citations by year
2026: 4 · 2025: 7 · 2024: 11 · 2023: 11 · 2022: 10 · 2021: 16 · 2020: 21 · 2019: 7 · 2018: 14 · 2017: 15 · 2016: 14 · 2015: 12 · 2014: 13 · 2013: 19 · 2012: 19
FWCI
7.83
Type
journal article
Language
en
Open access
closed
Locations
  • The FASEB Journal (publishedVersion)
  • PubMed (publishedVersion)
  • Research Publications (Maastricht University) (publishedVersion)
  • Research Publications (Maastricht University) (submittedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cancer Research › NF-κB Signaling Pathways
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Signaling Pathways in Disease
Keywords
TNF-α, myogenesis, MyoD, NF-κB, RelA/p65, protein destabilization, ubiquitin-proteasome system, muscle atrophy, skeletal muscle regeneration, C2C12 myoblasts, cell cycle exit
MeSH terms
Animals, Cell Cycle, Cell Differentiation, Cell Line, Cysteine Endopeptidases, Half-Life, Male, Mice, Inbred C57BL, Multienzyme Complexes, Regeneration, Tumor Necrosis Factor-alpha, Transcriptional Activation, NF-kappa B, MyoD Protein, Muscle, Skeletal, Muscle Development, Ubiquitin, Myoblasts, Proteasome Endopeptidase Complex, Mice, Transcription Factor RelA

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