Effects of glypican-1 on turkey skeletal muscle cell proliferation, differentiation and fibroblast growth factor 2 responsiveness

Dev Growth Differ. 2006 May;48(4):271-6. doi: 10.1111/j.1440-169X.2006.00860.x.

Abstract

The heparan sulfate proteoglycan, glypican-1, is a low affinity receptor for fibroblast growth factor 2 (FGF2). Fibroblast growth factor 2 is a potent stimulator of skeletal muscle cell proliferation and an inhibitor of differentiation. Heparan sulfate proteoglycans like glypican-1 are required for FGF2 to transduce an intracellular signal. Understanding the role of glypican-1 in the regulation of FGF2-mediated signaling is important in furthering the understanding of the biological processes involved in muscle development and growth. In the current study, a turkey glypican-1 expression vector construct was transfected into turkey myogenic satellite cells resulting in the overexpression of glypican-1. The proliferation, differentiation, and responsiveness to FGF2 were measured in control and transfected cell cultures. The overexpression of glypican-1 in turkey myogenic satellite cells increased both satellite cell proliferation and FGF2 responsiveness, but decreased the rate of differentiation. The current data support glypican-1 modulation of both proliferation and differentiation through an FGF2-mediated pathway.

Publication types

  • Research Support, U.S. Gov't, Non-P.H.S.

MeSH terms

  • Animals
  • Cell Differentiation
  • Cell Proliferation
  • Fibroblast Growth Factor 2 / metabolism*
  • Heparan Sulfate Proteoglycans / genetics
  • Heparan Sulfate Proteoglycans / physiology*
  • Male
  • Muscle Development / physiology*
  • Satellite Cells, Skeletal Muscle / cytology*
  • Satellite Cells, Skeletal Muscle / physiology
  • Transfection
  • Turkeys / genetics
  • Turkeys / growth & development*
  • Turkeys / physiology

Substances

  • Heparan Sulfate Proteoglycans
  • Fibroblast Growth Factor 2