Tenascin-R distinct domains modulate migration of neural stem/progenitor cells in vitro

In Vitro Cell Dev Biol Anim. 2009 Jan-Feb;45(1-2):10-4. doi: 10.1007/s11626-008-9145-6. Epub 2008 Oct 15.

Abstract

Extracellular matrix (ECM) molecules constitute a "niche" that modulates the migration, proliferation, and differentiation of neural stem/progenitor cells (NSPCs). The glycoprotein Tenascin-R (TN-R) is an ECM molecule, comprising multiple domains. Either the whole TN-R molecule or its distinct domains has been demonstrated to play a very important role in the developing central nervous system. However, little is known about the effect of the TN-R domain on NSPCs, especially NSPC migration. In the present study, we first show that both TN-R domains epidermal growth factor-like repeat (EGFL) and fibronectin type III (FN)6-8 can inhibit the NSPCs migration from neurospheres in vitro. Furthermore, both the EGFL and FN6-8 domains affect the distribution of neurons generated from neurospheres, indicating that EGFL and FN6-8 domains inhibit the motility of neurons generated from neurospheres. These results suggest that TN-R has an inhibitory effect on NSPCs migration.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Astrocytes / cytology
  • Astrocytes / drug effects
  • Astrocytes / physiology
  • Cell Differentiation / drug effects*
  • Cell Proliferation / drug effects
  • Cells, Cultured
  • Embryonic Stem Cells / drug effects*
  • Embryonic Stem Cells / physiology*
  • Neurons / cytology
  • Neurons / drug effects
  • Neurons / metabolism
  • Neurons / physiology*
  • Protein Structure, Tertiary
  • Rats
  • Rats, Sprague-Dawley / metabolism
  • Recombinant Proteins / pharmacology
  • Tenascin / metabolism
  • Tenascin / pharmacology*

Substances

  • Recombinant Proteins
  • Tenascin
  • tenascin R