Chondrogenesis of human mesenchymal stem cells by local transforming growth factor-beta delivery in a biphasic resorbable carrier

Tissue Eng Part A. 2010 Feb;16(2):453-64. doi: 10.1089/ten.TEA.2009.0168.


Little is known about the potential of growth factor-augmented biphasic implants composed of a gel and a solid scaffold to enhance chondrogenesis of mesenchymal stem cells (MSCs). We analyzed whether a collagen type I/III carrier and fibrin glue (FG) combined to a biphasic construct support in vitro chondrogenesis of MSCs and allow for local release of bioactive transforming growth factor-beta1 (TGF-beta1). Further, a possible advantage of partial autologous fibrin glue (PAF) over commercial FG was assessed. Collagen carriers seeded with 5 x 10(5) human MSCs with or without FG, PAF, or TGF-beta1-upgraded FG were cultured for 6 weeks in chondrogenic medium with or without TGF-beta1. Pellets with or without FG/PAF served as controls. FG and collagen carriers allowed strong upregulation of COL2A1, AGC, and COL10A1 mRNA, deposition of collagen-type II, and mediated a significantly higher proteoglycan content compared with biomaterial-free pellets. Collagen-carrier groups contained significantly more proteoglycan than FG and PAF pellets, whereas biphasic PAF-carrier constructs were inferior to FG-carrier constructs. Upgrading of biphasic FG-carrier constructs with 50 ng TGF-beta1/construct mediated chondrogenesis as successfully as supply of TGF-beta1 via the medium. In conclusion, the biphasic carrier constructs showed a high biofunctionality by continuous form stability with improved chondrogenesis and long-term local supply of bioactive TGF-beta1 which may be useful to enhance matrix-assisted repair strategies for damaged cartilage.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Biocompatible Materials / chemistry*
  • Biomarkers / metabolism
  • Chondrogenesis / drug effects*
  • Chondrogenesis / genetics
  • Collagen Type II / genetics
  • Collagen Type II / metabolism
  • DNA / metabolism
  • Drug Carriers / chemistry*
  • Drug Delivery Systems*
  • Fibrin Tissue Adhesive / pharmacology
  • Gene Expression Regulation / drug effects
  • Humans
  • Mesenchymal Stem Cells / cytology*
  • Mesenchymal Stem Cells / drug effects*
  • Mesenchymal Stem Cells / metabolism
  • Proteoglycans / metabolism
  • RNA, Messenger / genetics
  • RNA, Messenger / metabolism
  • Transforming Growth Factor beta1 / pharmacology*


  • Biocompatible Materials
  • Biomarkers
  • Collagen Type II
  • Drug Carriers
  • Fibrin Tissue Adhesive
  • Proteoglycans
  • RNA, Messenger
  • Transforming Growth Factor beta1
  • DNA