These authors contributed equally to this work.
Biotin-conjugated anti-CD44 antibody–avidin binding system for the improvement of chondrocyte adhesion to scaffolds
Article first published online: 19 JUL 2013
Copyright © 2013 Wiley Periodicals, Inc.
Journal of Biomedical Materials Research Part A
Volume 102, Issue 4, pages 1140–1148, April 2014
How to Cite
How to cite this article: 2014. Biotin-conjugated anti-CD44 antibody–avidin binding system for the improvement of chondrocyte adhesion to scaffolds. J Biomed Mater Res Part A 2014:102A:1140–1148., , , , , , .
- Issue published online: 21 FEB 2014
- Article first published online: 19 JUL 2013
- Accepted manuscript online: 29 APR 2013 09:17PM EST
- Manuscript Accepted: 23 APR 2013
- Manuscript Revised: 9 APR 2013
- Manuscript Received: 5 FEB 2013
- National Natural Science Foundation of China. Grant Numbers: 30872623, 81071468
- Key Basic Research Foundation of Shanghai Science and Technology Commission. Grant Number: 09JC1403600
- anti-CD44 antibody;
- cell adhesion;
- cartilage tissue engineering
The clinical need for improved treatment options for patients with cartilage injuries has motivated tissue-engineering studies aimed at the in vitro generation of cell-based implants with functional properties. The success of tissue-engineered repair of cartilage may depend on the rapid and efficient adhesion of transplanted cells to the scaffold. In the present study, chondrocyte-scaffold constructs were engineered by planting porcine chondrocytes into nonporous chitosan membranes and 3D porous chitosan scaffolds that were treated with or without biotin-conjugated anti-CD44 antibody–avidin binding system and avidin–biotin binding system. The spreading area, cell exfoliation rates, cell proliferation rates, histological analysis, DNA and glycosaminoglycan (GAG) content, and mRNA expression were investigated to evaluate the efficiency of biotin-conjugated anti-CD44 antibody–avidin binding system for the improvement of cell adhesion to scaffolds in the cartilage tissue. The results showed that the biotin-conjugated anti-CD44 antibody–avidin binding system improved cell adhesion to scaffolds effectively. These studies suggest that this binding system has the potential to provide improved tissue-engineered cartilage for clinical applications. © 2013 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 102A: 1140–1148, 2014.