Synthesis and characterization of matrix metalloprotease sensitive-low molecular weight hyaluronic acid based hydrogels

J Mater Sci Mater Med. 2008 Nov;19(11):3311-8. doi: 10.1007/s10856-008-3469-3. Epub 2008 May 22.

Abstract

Hyaluronic acid is a naturally derived glycosaminoglycan (GAG) involved in biological processes. A low molecular weight hyaluronic acid (50 kDa)-based hydrogel was synthesized using acrylated hyaluronic acid. Matrix metalloproteinase (MMP) sensitive hyaluronic acid-based hydrogels were prepared by conjugation with two different peptides: cell adhesion peptides containing integrin binding domains (Arg-Gly-Asp: RGD) and a cross-linker with MMP degradable peptides to mimic the remodeling characteristics of natural extracellular matrices (ECMs) by cell-derived MMPs. Mechanical properties of these hydrogels were evaluated with different molecular weights of acrylated hyaluronic acid (10 kDa and 50 kDa) cross-linked by MMP sensitive peptides by measuring elastic modulus, viscous modulus, swelling ratio and degradation rate. The MMP sensitive hydrogel based on the 50 kDa hyaluronic acid showed a 31.5-fold shorter gelation time, 4.7-fold higher storage modulus and 0.51-fold smaller swelling ratio than those of the hydrogel based on the 10 kDa. Degradation rate was dependent on MMP sensitivity of the peptide cross-linker. MMP sensitive hyaluronic acid based hydrogels were degraded faster than MMP insensitive-hyaluronic acid-based hydrogels. Human mesenchymal stem cells (MSCs) were cultured in MMP-sensitive or insensitive hyaluronic acid-based hydrogels (50 kDa hyaluronic acid) and/or immobilized cell adhesive RGD peptides. Cells cultured in the MMP-sensitive hydrogel with RGD peptides showed dramatic cell spreading compared with that of the control, which remained round. This MMP-sensitive low molecular weight hyaluronic acid-based hydrogel could be useful in tissue engineering by improving tissue defect regeneration and tissue remodeling.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Acrylates / chemistry
  • Biocompatible Materials / chemistry*
  • Biocompatible Materials / metabolism
  • Cell Adhesion
  • Cell Survival
  • Cells, Cultured
  • Cross-Linking Reagents / chemistry
  • Cross-Linking Reagents / metabolism
  • Elasticity
  • Extracellular Matrix / metabolism
  • Humans
  • Hyaluronic Acid / chemistry*
  • Hyaluronic Acid / metabolism
  • Hyaluronoglucosaminidase / chemistry
  • Hyaluronoglucosaminidase / metabolism
  • Hydrogels / chemical synthesis*
  • Hydrogels / chemistry
  • Hydrogels / metabolism
  • Matrix Metalloproteinases / chemistry*
  • Matrix Metalloproteinases / metabolism
  • Metalloproteases / chemistry*
  • Metalloproteases / metabolism
  • Molecular Weight
  • Oligopeptides
  • Peptides / chemistry
  • Peptides / metabolism
  • Polyethylene Glycols / chemistry
  • Polyethylene Glycols / metabolism
  • Protein Structure, Tertiary
  • Tissue Engineering
  • Viscosity

Substances

  • Acrylates
  • Biocompatible Materials
  • Cross-Linking Reagents
  • Hydrogels
  • Oligopeptides
  • Peptides
  • Polyethylene Glycols
  • arginyl-glycyl-aspartic acid
  • Hyaluronic Acid
  • Hyaluronoglucosaminidase
  • Metalloproteases
  • Matrix Metalloproteinases