Cited by 314Muscle Physiology and DisordersTGF-β signaling in diseasesMuscle metabolism and nutrition

Myostatin/activin pathway antagonism: molecular basis and therapeutic potential

Han, H.Q., Zhou, Xiaolan, Mitch, William E., Goldberg, Alfred L.·2013·The International Journal of Biochemistry & Cell Biology

Abstract

Muscle wasting is associated with a wide range of catabolic diseases. This debilitating loss of muscle mass and functional capacity reduces the quality of life and increases the risks of morbidity and mortality. Major progress has been made in understanding the biochemical mechanisms and signaling pathways regulating muscle protein balance under normal conditions and the enhanced protein loss in atrophying muscles. It is now clear that activation of myostatin/activin signaling is critical in triggering the accelerated muscle catabolism that causes muscle loss in multiple disease states. Binding of myostatin and activin to the ActRIIB receptor complex on muscle cell membrane leads to activation of Smad2/3-mediated transcription, which in turn stimulates FoxO-dependent transcription and enhanced muscle protein breakdown via ubiquitin-proteasome system and autophagy. In addition, Smad activation inhibits muscle protein synthesis by suppressing Akt signaling. Pharmacological blockade of the myostatin/activin-ActRIIB pathway has been shown to prevent or reverse the loss of muscle mass and strength in various disease models including cancer cachexia and renal failure. Moreover, it can markedly prolong the lifespan of animals with cancer-associated muscle loss. Furthermore, inhibiting myostatin/activin actions also improves insulin sensitivity, reduces excessive adiposity, attenuates systemic inflammation, and accelerates bone fracture healing in disease models. Based on these exciting advances, the potential therapeutic benefits of myostatin/activin antagonism are now being tested in multiple clinical settings. This article is part of a Directed Issue entitled: Molecular basis of muscle wasting.

Integrity signals

Registry

Crossref · 10.1016/j.biocel.2013.05.019

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228 of 228 references verified0 citation errors · 0 not checkable

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Authors
Han, H. Q., Zhou, X., Mitch, W. E., & Goldberg, A. L.
Affiliations
  • Amgen (United States) (US)
  • Baylor College of Medicine (US)
  • Harvard University (US)
Corresponding author
Han, H.Q.
Venue
The International Journal of Biochemistry & Cell Biology
Publisher
Elsevier BV
Published
2013-10
Volume
45
Issue
10
Pages
2333-2347
ISSN
1357-2725 (ISSN-L)
OpenAlex
W1971189666
Cited by
314
References
231
Citations by year
2026: 25 · 2025: 27 · 2024: 25 · 2023: 12 · 2022: 26 · 2021: 26 · 2020: 32 · 2019: 29 · 2018: 21 · 2017: 20 · 2016: 22 · 2015: 17 · 2014: 23 · 2013: 9
FWCI
2.23
Type
journal article
Language
en
Open access
closed
Locations
  • The International Journal of Biochemistry & Cell Biology (publishedVersion)
  • PubMed (publishedVersion)
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
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
Keywords
myostatin, activin, muscle atrophy, Smad2/3 signaling, ubiquitin-proteasome system, autophagy, Akt signaling, muscle protein synthesis, cancer cachexia, renal failure, lifespan extension, insulin sensitivity, adiposity, systemic inflammation, fracture healing
MeSH terms
Animals, Humans, Muscle Proteins, Muscular Diseases, Signal Transduction, Muscle, Skeletal, Ubiquitin, Activins, Ubiquitin-Protein Ligases, Proteasome Endopeptidase Complex, Myostatin, Molecular Targeted Therapy

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