Down-regulation of an ankyrin repeat-containing protein, V-1, during skeletal muscle differentiation and its re-expression in the regenerative process of muscular dystrophy

Yuko Furukawa, Naohiro Hashimoto, Tohru Yamakuni, Yukisato Ishida, Chieko Kato, Masayo Ogashiwa, Masumi Kobayashi, Takayoshi Kobayashi, Ikuya Nonaka, Hidehiro Mizusawa, Si Young Song

Research output: Contribution to journalArticlepeer-review

13 Citations (Scopus)

Abstract

Using Western blot analysis and immunohistochemical methods, we examined the expression of V-1, a member of the ankyrin repeat-containing protein family, during differentiation and regeneration of skeletal muscle. The expression of V-1 was high in cultured myoblasts and decreased during their differentiation into myotubes, while high expression was maintained when muscle differentiation was inhibited by treatment with basic fibroblast growth factor. Down-regulation of V-1 also occurred during in vivo muscle differentiation from embryonic to postnatal stages, reaching an undetectable level in mature skeletal muscle. In contrast, strong V-1 immunoreactivity was detected again in myoblasts and regenerating muscle fibers with a small diameter, which were observed in Duchenne muscular dystrophy and its animal model, mdx mouse. Thus, it seems that V-1 is a good marker for early stage of muscle regeneration and changes of its expression suggest that V-1 plays a role in prenatal muscle differentiation and postnatal muscle regeneration.

Original languageEnglish
Pages (from-to)32-41
Number of pages10
JournalNeuromuscular Disorders
Volume13
Issue number1
DOIs
Publication statusPublished - 2003 Jan 1

Keywords

  • Ankyrin repeat
  • Duchenne muscular dystrophy
  • Muscle differentiation
  • Muscle regeneration
  • V-1
  • mdx mice

ASJC Scopus subject areas

  • Pediatrics, Perinatology, and Child Health
  • Neurology
  • Clinical Neurology
  • Genetics(clinical)

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