Connective tissue proliferation and growth factors in animal models of Duchenne muscular dystrophy

S. Iannaccone, A. Quattrini, S. Smirne, M. Sessa, F. de Rino, L. Ferini-Strambi, R. Nemni

Research output: Contribution to journalArticle

Abstract

The difference in the lifespan of dy and mdx mice could be due to different muscle regeneration capabilities. In mdx an involvement of bFGF in stimulating regeneration has been postulated. The aim of our work was to detect the presence, and to study the distribution, of muscular and connective tissue growth factors in mdx and dy mice at different stages of muscle pathology. From 7 to 10 weeks of age the difference between the two dystrophic mice becomes evident. At 13 weeks the dy mouse presents a predominance of fibrosis and degenerative muscular phenomena while the main pathological feature in mdx mouse is the muscle regeneration. In both animal models fibrosis proliferation is correlated to the presence of EGF and its receptor and TGFβ1. bFGF was localized to regenerating and degenerating fibers in both dy and mdx mice. The bFGF presented a normal pattern in mdx mice at 20 weeks when regenerative and degenerative phenomena were no longer present. Our data suggest that growth factors could influence the outcome of muscular regenerative and degenerative processes.

Original languageEnglish
Pages (from-to)36-44
Number of pages9
JournalJournal of the Neurological Sciences
Volume128
Issue number1
DOIs
Publication statusPublished - 1995

Keywords

  • Connective tissue
  • Duchenne muscular dystrophy
  • dy mouse
  • Growth factor
  • mdx mouse

ASJC Scopus subject areas

  • Clinical Neurology
  • Neurology
  • Ageing
  • Surgery
  • Developmental Neuroscience
  • Neuroscience(all)

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