Characteristics of muscle fibers reconstituted in the regeneration process of masseter muscle in an mdx mouse model of muscular dystrophy

Won Hyung Lee, Shinichi Abe, Heejin Kim, Akinobu Usami, Atsuro Honda, Koji Sakiyama, Yoshinobu Ide

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

Mdx mice, which lack dystrophin, were examined for changes in the properties of muscle fibers in the growth process of the masseter muscle at the morphological, protein and transcriptional levels. The slow-type isoform, MyHC-1, and the fast-type isoforms, MyHC-2a, MyHC-2d and MyHC-2b, were examined at the protein and the transcriptional level. Morphological examination showed that in the mdx mouse masseter muscle, degeneration, necrosis, and regeneration occurred, particularly at the age of 4 weeks, and many regenerated muscle fibers with centrally located nuclei were observed at the age of 9 weeks. The results of examination at the protein and the transcriptional level showed that in the process of muscle fiber degeneration, necrosis, and regeneration, the mdx mouse masseter muscle acquires muscle fiber characteristics entirely different from those in the normal mouse masseter muscle. In particular, MyHC-1, which is rarely found in normal mice, was very strongly expressed.

Original languageEnglish
Pages (from-to)235-240
Number of pages6
JournalJournal of Muscle Research and Cell Motility
Volume27
Issue number3-4
DOIs
Publication statusPublished - 2006 Mar 1

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Inbred mdx Mouse
Masseter Muscle
Muscular Dystrophies
Muscle
Regeneration
Muscles
Fibers
Protein Isoforms
Necrosis
Dystrophin
Proteins
Growth

All Science Journal Classification (ASJC) codes

  • Physiology
  • Biochemistry
  • Cell Biology

Cite this

Lee, Won Hyung ; Abe, Shinichi ; Kim, Heejin ; Usami, Akinobu ; Honda, Atsuro ; Sakiyama, Koji ; Ide, Yoshinobu. / Characteristics of muscle fibers reconstituted in the regeneration process of masseter muscle in an mdx mouse model of muscular dystrophy. In: Journal of Muscle Research and Cell Motility. 2006 ; Vol. 27, No. 3-4. pp. 235-240.
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Characteristics of muscle fibers reconstituted in the regeneration process of masseter muscle in an mdx mouse model of muscular dystrophy. / Lee, Won Hyung; Abe, Shinichi; Kim, Heejin; Usami, Akinobu; Honda, Atsuro; Sakiyama, Koji; Ide, Yoshinobu.

In: Journal of Muscle Research and Cell Motility, Vol. 27, No. 3-4, 01.03.2006, p. 235-240.

Research output: Contribution to journalArticle

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AU - Lee, Won Hyung

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