Cited by 64Muscle Physiology and DisordersRNA Research and SplicingDevelopmental Biology and Gene Regulation

RNA‐binding proteins Rbm38 and Rbm24 regulate myogenic differentiation via p21‐dependent and ‐independent regulatory pathways

Miyamoto, Shoko, Hidaka, Kyoko, Jin, Donghao, Morisaki, Takayuki·2009·Genes to Cells

Abstract

Skeletal muscle differentiation entails organized sequential events, including cell cycle arrest of proliferating myoblast cells and cell fusion, which lead to the formation of multinucleated myotubes. This process involves both transcriptional and post‐transcriptional regulation of the gene expression of myogenic proteins, as well as cell‐cycle related proteins. RNA‐binding proteins bind to specific sequences of target RNA and regulate gene expression in a post‐transcriptional manner. However, few tissue‐specific RNA binding proteins have been identified. Herein, we report that the RNA binding proteins Rbm24 and Rbm38 were found to be preferentially expressed in muscle during differentiation in vitro . Further, knockdown of either by RNA interference suppressed cell‐cycle arrest and delayed myogenic differentiation in C2C12 cells. In contrast, over‐expression of Rbm24 or Rbm38 induced cell cycle arrest, and then had a positive effect on myogenic differentiation. Immunoprecipitation‐RT‐PCR analysis using tagged Rbm proteins indicated that Rbm38 binds to the p21 transcript in vivo . Consistent with this, differentiation of Rbm38 knockdown cells was rescued by over‐expression of p21. Together, our results suggest that Rbm38 plays a crucial role in cell cycle arrest and myogenic differentiation via its binding to p21.

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Crossref · 10.1111/j.1365-2443.2009.01347.x

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  • The SUP12, RBM24, and RBM38 proteins are regulators of muscle development in nematode, mouse, and human, indicating biochemical and functional conservation.

    “These nematode, mouse and human proteins are regulators of muscle development15,16, indicating both biochemical and functional conservation.”

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Authors
Miyamoto, S., Hidaka, K., Jin, D., & Morisaki, T.
Affiliations
  • National Cerebral and Cardiovascular Center (JP)
  • The University of Osaka (JP)
Corresponding author
Morisaki, Takayuki
Venue
Genes to Cells
Publisher
Wiley
Published
2009-11
Volume
14
Issue
11
Pages
1241-1252
ISSN
  • 1356-9597 (ISSN-L)
  • 1365-2443
OpenAlex
W2125806220
Cited by
64
References
32
Citations by year
2026: 1 · 2025: 2 · 2024: 1 · 2023: 1 · 2022: 2 · 2021: 5 · 2020: 2 · 2019: 5 · 2018: 2 · 2017: 7 · 2016: 7 · 2015: 1 · 2014: 8 · 2013: 8 · 2012: 4
FWCI
1.61
Type
journal article
Language
en
Open access
closed
Locations
  • Genes to Cells (publishedVersion)
  • PubMed (publishedVersion)
Funders
Japan Science and Technology Corporation
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Muscle Physiology and Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › RNA Research and Splicing
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
Keywords
RBM38, RBM24, RNA-binding proteins, myogenesis, skeletal muscle differentiation, p21, cell cycle arrest, post-transcriptional regulation, C2C12 myoblasts, cell fusion
MeSH terms
Animals, Cell Differentiation, Cell Line, Fluorescent Antibody Technique, Gene Expression Regulation, Myocardium, Signal Transduction, Up-Regulation, RNA-Binding Proteins, Muscle, Skeletal, Gene Silencing, Mice, p21-Activated Kinases, Gene Knockdown Techniques

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