Catechins activate muscle stem cells by Myf5 induction and stimulate muscle regeneration

A. Rum Kim, Kyung Min Kim, Mi Ran Byun, Jun Ha Hwang, Jung Il Park, Ho Taek Oh, Hyo Kyeong Kim, Mi Gyeong Jeong, Eun Sook Hwang, Jeong-Ho Hong

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

Muscle weakness is one of the most common symptoms in aged individuals and increases risk of mortality. Thus, maintenance of muscle mass is important for inhibiting aging. In this study, we investigated the effect of catechins, polyphenol compounds in green tea, on muscle regeneration. We found that (−)-epicatechin gallate (ECG) and (−)-epigallocatechin-3-gallate (EGCG) activate satellite cells by induction of Myf5 transcription factors. For satellite cell activation, Akt kinase was significantly induced after ECG treatment and ECG-induced satellite cell activation was blocked in the presence of Akt inhibitor. ECG also promotes myogenic differentiation through the induction of myogenic markers, including Myogenin and Muscle creatine kinase (MCK), in satellite and C2C12 myoblast cells. Finally, EGCG administration to mice significantly increased muscle fiber size for regeneration. Taken together, the results suggest that catechins stimulate muscle stem cell activation and differentiation for muscle regeneration.

Original languageEnglish
Pages (from-to)142-148
Number of pages7
JournalBiochemical and Biophysical Research Communications
Volume489
Issue number2
DOIs
Publication statusPublished - 2017 Jul 22

Keywords

  • Catechins
  • Muscle regeneration
  • Myogenic differentiation
  • Phosphoinositide 3-kinases/Akt
  • Satellite cells

ASJC Scopus subject areas

  • Biophysics
  • Biochemistry
  • Molecular Biology
  • Cell Biology

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  • Cite this

    Kim, A. R., Kim, K. M., Byun, M. R., Hwang, J. H., Park, J. I., Oh, H. T., Kim, H. K., Jeong, M. G., Hwang, E. S., & Hong, J-H. (2017). Catechins activate muscle stem cells by Myf5 induction and stimulate muscle regeneration. Biochemical and Biophysical Research Communications, 489(2), 142-148. https://doi.org/10.1016/j.bbrc.2017.05.114