Chondrogenic differentiation of mesenchymal stem cells in a hydrogel system based on an enzymatically crosslinked tyramine derivative of hyaluronan

0435157 - BFÚ 2015 RIV US eng J - Journal Article
Dvořáková, J. - Kučera, L. - Kučera, J. - Svik, K. - Foglarová, M. - Muthny, T. - Pravda, M. - Němcová, M. - Velebný, V. - Kubala, Lukáš
Chondrogenic differentiation of mesenchymal stem cells in a hydrogel system based on an enzymatically crosslinked tyramine derivative of hyaluronan.
Journal of Biomedical Materials Research. Part A. Roč. 102, č. 10 (2014), s. 3523-3530. ISSN 1549-3296. E-ISSN 1552-4965
R&D Projects: GA MŠMT(CZ) ED1.100/02/0123
Institutional support: RVO:68081707
Keywords : hyaluronate * tyramine * chondrogenesis
Subject RIV: BO - Biophysics
Impact factor: 3.369, year: 2014

Hyaluronan-based tissue substitutes are promising materials in cartilage reconstruction surgery. Herein, the chondrogenesis of human mesenchymal stem cells (MSC) in a hydrogel based on a tyramine derivative of hyaluronan crosslinked by hydrogen peroxidase (HA-TA) was evaluated. Human MSC seeded in the scaffold were incubated in standard chondrogenic medium and medium enriched with bone morphogenetic protein-6 (BMP6). Cell viability, the gene expression of selected markers (collagen type II, aggrecan, SOX9, collagen type X, and osteopontin), and the histological characteristics were examined during three weeks of in vitro cultivation. The tissue reaction of both unseeded and MSC seeded HA-TA scaffolds were tested in vivo after subcutaneous application in rats for 12 weeks. The data showed that cells resisted the process of crosslinking and remained viable for the whole time while exhibiting changes in cell organization. Human MSC cultivated in HA-TA hydrogel expressed genes of both chondrogenic and osteogenic differentiation and the addition of BMP6 revealed a tendency to potentiate both processes.
Permanent Link: http://hdl.handle.net/11104/0239088