Journal of biomedical materials research. Part A, 2010-12, Vol.95A (4), p.982-992
2010
Details
- Autor(en) / Beteiligte
- Titel
- TGF-β3 immobilized PLGA-gelatin/chondroitin sulfate/hyaluronic acid hybrid scaffold for cartilage regeneration
- Ist Teil von
- Journal of biomedical materials research. Part A, 2010-12, Vol.95A (4), p.982-992
- Ort / Verlag
- Hoboken: Wiley Subscription Services, Inc., A Wiley Company
- Erscheinungsjahr
- 2010
- Link zum Volltext
- Quelle
- Wiley Online Library Journals Frontfile Complete
- Beschreibungen/Notizen
- Although most in vitro studies indicate that transforming growth factor β3 (TGF‐β3) immobilized scaffold is suitable for cartilage tissue engineering, in vivo studies of implanting immobilized scaffold for chondral defect repair are still lacking. This study is to evaluate the potentials of TGF‐β3 immobilized poly‐(lactic‐co‐glycolic acid)‐gelatin/chondroitin sulfate/hyaluronic acid (PLGA‐GCH) hybrid scaffold for cartilage regeneration. The scaffold was fabricated by incorporating GCH micro‐sponges into PLGA frameworks and then crosslinked with TGF‐β3 to mimic natural cartilaginous extra cellular matrix (ECM). In vitro study demonstrated that MSCs proliferated vigorously and produced abundant ECM on scaffold. The immunohistochemistry staining and alcian blue staining confirmed the cartilaginous ECM production. The chondrogenic differentiation of MSCs on scaffold was proved by the expression of collagen II gene in mRNA and protein level. Then MSCs/TGF‐β3 immobilized scaffolds were implanted in rabbits for chondral defects repair. After eight weeks, histological observation showed that differentiated MSCs were located in lacunae within the metachromatic staining matrix and exhibited typical chondrocyte morphology. Histological grading scores also indicated the congruent cartilage was regenerated. In conclusion, the TGF‐β3 immobilized PLGA‐GCH hybrid scaffold has great potential in constructing the tissue‐engineered cartilage. © 2010 Wiley Periodicals, Inc. J Biomed Mater Res Part A, 2010.
- Sprache
- Englisch
- Identifikatoren
- ISSN: 1549-3296eISSN: 1552-4965DOI: 10.1002/jbm.a.32899Titel-ID: cdi_proquest_miscellaneous_763175206
- Format
- –
- Schlagworte
- Animals, Biological and medical sciences, Biotechnology, cartilage, Cartilage - drug effects, Cartilage - metabolism, Cartilage - pathology, Cartilage - physiology, Cells, Cultured, Chondroitin - analogs & derivatives, Chondroitin - pharmacology, Collagen - genetics, Collagen - metabolism, DNA - metabolism, Fundamental and applied biological sciences. Psychology, Gene Expression Regulation - drug effects, Glycosaminoglycans - metabolism, Health. Pharmaceutical industry, Humans, Hyaluronic Acid - analogs & derivatives, Hyaluronic Acid - pharmacology, Immobilized Proteins - pharmacology, Industrial applications and implications. Economical aspects, Medical sciences, mesenchymal stem cells, Mesenchymal Stromal Cells - cytology, Mesenchymal Stromal Cells - drug effects, Mesenchymal Stromal Cells - metabolism, Miscellaneous, Polyglactin 910 - pharmacology, Rabbits, Regeneration - drug effects, Surgery (general aspects). Transplantations, organ and tissue grafts. Graft diseases, Technology. Biomaterials. Equipments, Time Factors, tissue engineering, Tissue Scaffolds - chemistry, Transcription, Genetic - drug effects, transforming growth factor, Transforming Growth Factor beta3 - pharmacology, Wound Healing - drug effects