Cited by 68Muscle Physiology and DisordersTGF-β signaling in diseasesHormonal and reproductive studies

Increased Muscle Force Production and Bone Mineral Density in ActRIIB-Fc-Treated Mature Rodents

Chiu, C.-S., Peekhaus, N., Weber, H., Adamski, S., Murray, E. M., Zhang, H. Z., Zhao, J. Z., Ernst, R. +14 more·2013·The Journals of Gerontology Series A: Biological Sciences and Medical Sciences

Abstract

Myostatin is a highly conserved member of the transforming growth factor-β ligand family known to regulate muscle growth via activation of activin receptors. A fusion protein consisting of the extracellular ligand-binding domain of activin type IIB receptor with the Fc portion of human immunoglobulin G (ActRIIB-Fc) was used to inhibit signaling through this pathway. Here, we study the effects of this fusion protein in adult, 18-month-old, and orchidectomized mice. Significant muscle growth and enhanced muscle function were observed in adult mice treated for 3 days with ActRIIB-Fc. The ActRIIB-Fc-treated mice had enhanced fast fatigable muscle function, with only minor enhancement of fatigue-resistant fiber function. The ActRIIB-Fc-treated 18-month-old mice and orchidectomized mice showed significantly improved muscle function. Treatment with ActRIIB-Fc also increased bone mineral density and serum levels of a marker of bone formation. These observations highlight the potential of targeting ActRIIB receptor to treat age-related and hypogonadism-associated musculoskeletal degeneration.

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  1. Waters DL, Baumgartner RN, Garry PJ. Sarcopenia: current perspec- tives. J Nutr Health Aging. 2000;4:133-139.

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Authors
Chiu, C.-S., Peekhaus, N., Weber, H., Adamski, S., Murray, E. M., Zhang, H. Z., Zhao, J. Z., Ernst, R., Lineberger, J., Huang, L., Hampton, R., Arnold, B. A., Vitelli, S., Hamuro, L., Wang, W.-R., Wei, N., Dillon, G. M., Miao, J., Alves, S. E., Glantschnig, H., Wang, F., & Wilkinson, H. A.
Affiliations
Merck & Co., Inc., Rahway, NJ, USA (United States) (US)
Venue
The Journals of Gerontology Series A: Biological Sciences and Medical Sciences
Published
2013-03-22
Volume
68
Issue
10
Pages
1181-1192
ISSN
  • 1079-5006 (ISSN-L)
  • 1758-535X
OpenAlex
W2113036381
Cited by
68
References
71
Citations by year
2026: 2 · 2025: 1 · 2024: 1 · 2023: 3 · 2022: 3 · 2021: 8 · 2020: 8 · 2019: 2 · 2018: 6 · 2017: 3 · 2016: 8 · 2015: 11 · 2014: 6 · 2013: 6
FWCI
4.62
Type
journal article
Language
en
Open access
closed
Locations
  • The Journals of Gerontology Series A (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
  • Health Sciences › Medicine › Endocrinology, Diabetes and Metabolism › Hormonal and reproductive studies
Keywords
myostatin, muscle growth, muscle force production, muscle function, bone mineral density, bone formation, aging, hypogonadism, orchiectomy, musculoskeletal degeneration, TGF-beta signaling
MeSH terms
Aging, Animals, Cell Line, Humans, Immunoglobulin Fc Fragments, Male, Mice, Inbred C57BL, Muscle Contraction, Orchiectomy, Peptide Fragments, Procollagen, Recombinant Fusion Proteins, Biomarkers, Bone Density, Activin Receptors, Type II, Mice, Muscle Strength, Myostatin, Sarcopenia, HEK293 Cells

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