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Interaction between myostatin and extracellular matrix components.

Authors
  • Miura, Takayuki
  • Kishioka, Yasuhiro
  • Wakamatsu, Jun-ichi
  • Hattori, Akihito
  • Nishimura, Takanori
Type
Published Article
Journal
Animal science journal = Nihon chikusan Gakkaihō
Publication Date
Feb 01, 2010
Volume
81
Issue
1
Pages
102–107
Identifiers
DOI: 10.1111/j.1740-0929.2009.00700.x
PMID: 20163680
Source
Medline
License
Unknown

Abstract

Myostatin, a member of the TGF-beta superfamily, is a negative regulator of skeletal muscle mass. We have recently demonstrated that decorin binds to myostatin in vitro, and that immobilized decorin within the collagen matrix prevents myostatin-mediated inhibition of myoblast proliferation. However, little is known about other ECM molecules that bind to myostatin and modulate its activity. Thus, in the present study, we investigated the interaction of several other ECM molecules with myostatin. We here show that fibromodulin, fibronectin and laminin bind to myostatin in the presence of Zn(2+) with a dissociation constant (K(D)) of 10(-10) approximately 10(-8) mol/L. Fibromodulin shows the highest affinity for myostatin among them. These results suggest that these ECM molecules may modulate myostatin activity like decorin does.

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