Park, Andrew and Hogan, MaCalus V. and Girish, K. S. and James, Roshan and Balian, Gary and Chhabra, Abhinav Bobby (2010) Adipose-Derived Mesenchymal Stem Cells Treated with Growth Differentiation Factor-5 Express Tendon-Specific Markers. Tissue Engineering Part A, 16 (9). pp. 2941-2951. ISSN 1937-3368
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Objectives: Adipose-derived mesenchymal stem cells (ADMSCs) are a unique population of stem cells with therapeutic potential in the treatment of connective tissue injuries. Growth differentiation factor-5 (GDF)-5 is known to play a role in tendon repair and maintenance. The aim of this study was to investigate the effects of GDF-5 on proliferation and tendonogenic gene expression of rat ADMSCs. Methods: ADMSCs were treated in culture with different concentrations of GDF-5 (0–1000 ng/mL) for 12 days. Biochemical, temporal, and concentration kinetic studies were done. Extracellular matrix (ECM) synthesis, tendonogenic differentiation, and matrix remodeling gene and protein expression were analyzed. Results: GDF-5 led to increased ADMSC proliferation in a dose- and time-dependent manner. ADMSCs demonstrated enhanced ECM (collagen type I, decorin, and aggrecan) and tendonogenic marker (scleraxis, tenomodulin, and tenascin-C) gene expression with 100 ng/mL of GDF-5 (p < 0.05). ECM and tendon-specific markers showed time-dependent increases at various time points (p < 0.05), although decorin decreased at day 9 (p < 0.05). GDF-5 did alter expression of matrix remodeling genes, with no specific trends observed. Western blot analysis confirmed dose- and time-dependent increases in protein expression of tenomodulin, tenascin-C, Smad-8, and matrix metalloproteinase-13. Conclusion: In vitro GDF-5 treatment can induce cellular events leading to the tendonogenic differentiation of ADMSCs. The use of combined GDF-5 and ADMSCs tissue-engineered therapies may have a role in the future of tendon repair.
| Item Type: | Article |
|---|---|
| Additional Information: | PMID: 20575691 |
| Subjects: | C Chemical Science > Biochemistry |
| Divisions: | Department of > Biochemistry |
| Depositing User: | LA manjunath user |
| Date Deposited: | 08 Jul 2019 11:50 |
| Last Modified: | 01 Jun 2023 11:04 |
| URI: | http://eprints.uni-mysore.ac.in/id/eprint/4926 |
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