Mesenchymal stem cell adherence on poly(D, L-lactide-co-glycolide) nanofibers scaffold is integrin-beta 1 receptor dependent

J Biomed Nanotechnol. 2012 Apr;8(2):211-8. doi: 10.1166/jbn.2012.1382.

Abstract

Tissue engineering is a potential approach to regenerate damaged tissue by the combination and synergism among the scaffolding material, cell source and signaling factors. In the present study, mesenchymal stem cells (MSCs) were isolated from C57BL/6 mice, cultured on poly(D, L-lactide-co-glycolide) (PLGA) scaffold produced by electrospinning technique and differentiated into chondrogenic lineage. After seeding, MSCs were responsive and became flattened with fibroblast-like morphology demonstrated by the presence of actin stress fibers. Integrin-beta1 receptor blockage reduced significantly cell adhesion with loss of actin stress fibers, demonstrating the ability of PLGA nanofiber to trigger integrin receptor-mediated cell adhesion. Present data contribute to the understanding of MSCs' behavior on these biodegradable and biocompatible scaffolds that can be used as carriers in treatments involving cell transplantation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Antigens, CD / metabolism
  • Biocompatible Materials / chemistry
  • Cell Adhesion / physiology*
  • Cell Differentiation
  • Cells, Cultured
  • Flow Cytometry
  • Integrin beta1 / metabolism*
  • Lactic Acid / chemistry*
  • Materials Testing
  • Mesenchymal Stem Cells / cytology*
  • Mesenchymal Stem Cells / metabolism
  • Mice
  • Mice, Inbred C57BL
  • Microscopy, Confocal
  • Nanofibers / chemistry*
  • Polyglycolic Acid / chemistry*
  • Polylactic Acid-Polyglycolic Acid Copolymer
  • Tissue Scaffolds / chemistry

Substances

  • Antigens, CD
  • Biocompatible Materials
  • Integrin beta1
  • Polylactic Acid-Polyglycolic Acid Copolymer
  • Polyglycolic Acid
  • Lactic Acid