Fbxw7β, E3 ubiquitin ligase, negative regulation of primary myoblast differentiation, proliferation and migration

Kyungshin Shin, Sang Gu Hwang, Ik Joon Choi, Young-Gyu Ko, Jaemin Jeong, Heechung Kwon

Research output: Contribution to journalArticle

5 Citations (Scopus)


Satellite cells attached to skeletal muscle fibers play a crucial role in skeletal muscle regeneration. During regeneration, the satellite cells proliferate, migrate to the damaged region, and fuse to each other. Although it is important to determine the cellular mechanisms controlling myoblast behavior, their regulators are not well understood. In this study, we evaluated the roles of Fbxw7 in primary myoblasts and determined its potential as a therapeutic target for muscle disease. We originally found that Fbxw7β, one of the E3 ubiquitin ligase Fbxw7 subtypes, negatively regulates differentiation, proliferation and migration of myoblasts and satellite cells on muscle fiber. However, these phenomena were not observed in myoblasts expressing a dominant-negative, F-box deleted Fbxw7β, mutant. Our results suggest that myoblast differentiation potential and muscle regeneration can be regulated by Fbxw7β.

Original languageEnglish
JournalAnimal Science Journal
Publication statusAccepted/In press - 2016



  • differentiation
  • Fbxw7β
  • migration
  • myoblast
  • skeletal muscle

ASJC Scopus subject areas

  • Agricultural and Biological Sciences(all)

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