Response of zonal chondrocytes to extracellular matrix-hydrogels

FEBS Lett. 2007 Sep 4;581(22):4172-8. doi: 10.1016/j.febslet.2007.07.049. Epub 2007 Jul 31.


We investigated the biological response of chondrocytes isolated from different zones of articular cartilage and their cellular behaviors in poly (ethylene glycol)-based (PEG) hydrogels containing exogenous type I collagen, hyaluronic acid (HA), or chondroitin sulfate (CS). The cellular morphology was strongly dependent on the extracellular matrix component of hydrogels. Additionally, the exogenous extracellular microenvironment affected matrix production and cartilage specific gene expression of chondrocytes from different zones. CS-based hydrogels showed the strongest response in terms of gene expression and matrix accumulation for both superficial and deep zone chondrocytes, but HA and type I collagen-based hydrogels demonstrated zonal-dependent cellular responses.

Publication types

  • Research Support, N.I.H., Extramural
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Cartilage, Articular / cytology*
  • Cartilage, Articular / drug effects*
  • Cattle
  • Cell Proliferation / drug effects
  • Cell Separation
  • Cell Shape / drug effects
  • Cell Size / drug effects
  • Chondrocytes / cytology*
  • Chondrocytes / drug effects*
  • Chondrocytes / ultrastructure
  • Extracellular Matrix / drug effects
  • Extracellular Matrix / metabolism*
  • Extracellular Matrix Proteins / genetics
  • Extracellular Matrix Proteins / metabolism
  • Gene Expression Regulation / drug effects
  • Glycosaminoglycans / metabolism
  • Hydrogels / pharmacology*
  • Lubrication


  • Extracellular Matrix Proteins
  • Glycosaminoglycans
  • Hydrogels