Cited by 101Muscle Physiology and DisordersAdipose Tissue and MetabolismCancer-related gene regulation

Prmt7 Deficiency Causes Reduced Skeletal Muscle Oxidative Metabolism and Age-Related Obesity

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Jeong, Hyeon-Ju, Lee, Hye-Jin, Vuong, Tuan Anh, Choi, Kyu-Sil, Choi, Dahee, Koo, Sung-Hoi, Cho, Sung Chun, Cho, Hana +1 more·2016·Diabetes

Abstract

Maintenance of skeletal muscle function is critical for metabolic health and the disruption of which exacerbates many chronic diseases such as obesity and diabetes. Skeletal muscle responds to exercise or metabolic demands by a fiber-type switch regulated by signaling-transcription networks that remains to be fully defined. Here, we report that protein arginine methyltransferase 7 (Prmt7) is a key regulator for skeletal muscle oxidative metabolism. Prmt7 is expressed at the highest levels in skeletal muscle and decreased in skeletal muscles with age or obesity. Prmt7(-/-) muscles exhibit decreased oxidative metabolism with decreased expression of genes involved in muscle oxidative metabolism, including PGC-1α. Consistently, Prmt7(-/-) mice exhibited significantly reduced endurance exercise capacities. Furthermore, Prmt7(-/-) mice exhibit decreased energy expenditure, which might contribute to the exacerbated age-related obesity of Prmt7(-/-) mice. Similarly to Prmt7(-/-) muscles, Prmt7 depletion in myoblasts also reduces PGC-1α expression and PGC-1α-promoter driven reporter activities. Prmt7 regulates PGC-1α expression through interaction with and activation of p38 mitogen-activated protein kinase (p38MAPK), which in turn activates ATF2, an upstream transcriptional activator for PGC-1α. Taken together, Prmt7 is a novel regulator for muscle oxidative metabolism via activation of p38MAPK/ATF2/PGC-1α.

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  1. Morley JE, Baumgartner RN, Roubenoff R, Mayer J, Nair KS. Sarcopenia. J Lab Clin Med 2001;137:231-243
  2. Yan Z. Exercise, PGC-1alpha, and metabolic adaptation in skeletal muscle. Appl Physiol Nutr Metab 2009;34:424-427

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Authors
Jeong, H.-J., Lee, H.-J., Vuong, T. A., Choi, K.-S., Choi, D., Koo, S.-H., Cho, S. C., Cho, H., & Kang, J.-S.
Affiliations
  • Samsung Biomedical Research Institute (KR)
  • Samsung (South Korea) (KR)
  • Korea University (KR)
Corresponding author
Kang, Jong-Sun
Venue
Diabetes
Published
2016-04-26
Volume
65
Issue
7
Pages
1868-1882
ISSN
  • 0012-1797 (ISSN-L)
  • 1939-327X
OpenAlex
W2342571247
Cited by
101
References
55
Citations by year
2026: 7 · 2025: 8 · 2024: 10 · 2023: 9 · 2022: 12 · 2021: 11 · 2020: 11 · 2019: 16 · 2018: 8 · 2017: 8 · 2016: 1
FWCI
5.71
Type
journal article
Language
en
Open access
Locations
  • Diabetes (publishedVersion)
  • PubMed (publishedVersion)
Funders
National Research Foundation of Korea (NRF-2011-0017315, NRF-2013M3A9B1069776)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Health Sciences › Medicine › Physiology › Adipose Tissue and Metabolism
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cancer-related gene regulation
Keywords
PRMT7, skeletal muscle oxidative metabolism, age-related obesity, PGC-1α, p38 MAPK, ATF2, endurance exercise capacity, energy expenditure, myoblasts, muscle fiber type shift, transcriptional regulation
MeSH terms
Peroxisome Proliferator-Activated Receptor Gamma Coactivator 1-alpha, Aging, Animals, Energy Metabolism, Female, Lipids, Male, Obesity, Oxygen Consumption, Physical Conditioning, Animal, Physical Endurance, Promoter Regions, Genetic, Protein-Arginine N-Methyltransferases, Signal Transduction, Mice, Knockout, Muscle, Skeletal, Myoblasts, Mice, Activating Transcription Factor 2

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