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Histological and biomechanical properties of regenerated articular cartilage using chondrogenic bone marrow stromal cells with a PLGA scaffold in vivo
Author(s) -
Han Seung Hwan,
Kim Yun Hee,
Park Min Sung,
Kim In Ae,
Shin Jung Woog,
Yang Woo Ick,
Jee Kyoung Soo,
Park Ki Dong,
Ryu Gyu Ha,
Lee Jin Woo
Publication year - 2008
Publication title -
journal of biomedical materials research part a
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.849
H-Index - 150
eISSN - 1552-4965
pISSN - 1549-3296
DOI - 10.1002/jbm.a.31828
Subject(s) - plga , mesenchymal stem cell , hyaline cartilage , materials science , cartilage , scaffold , biomedical engineering , transplantation , stromal cell , regeneration (biology) , tissue engineering , articular cartilage repair , chondrogenesis , in vivo , bone marrow , pathology , anatomy , medicine , biology , osteoarthritis , surgery , microbiology and biotechnology , articular cartilage , alternative medicine , nanoparticle , nanotechnology
The properties of regenerated cartilage using bone marrow‐derived mesenchymal stem cells (MSCs) and poly lactic‐ co ‐glycolic acid (PLGA) scaffold composites pretreated with TGF‐β3 were investigated and compared to the non‐TGF‐β3 treated MSCs/PLGA composites in a rabbit model. We prepared MSCs/PLGA scaffold composites and pretreated it with TGF‐β3 for 3 weeks prior to transplantation. Then, composites were transplanted to the osteochondral defect in the rabbit knee. After 12 weeks of transplantation, 10 of the 12 rabbits in which TGF‐β3 pretreated MSCs/PLGA scaffold composites were transplanted showed cartilaginous regeneration. In gross morphology, regenerated cartilage showed smooth, flush, and transparent features. In indentation test, this had about 80% of Young's modulus of normal articular cartilage. Histological examination demonstrated hyaline like cartilage structures with glycosaminoglycan and type II collagen expression. Histological scores were not statistically different to the normal articular cartilage. These results showed improvement of cartilage regeneration compared to the non‐TGF‐β3 pretreated MSCs/PLGA scaffold composite transplanted group. Thus, we have successfully regenerated improved hyaline‐like cartilage and determined the feasibility of treating damaged articular cartilage using MSCs/PLGA scaffold composite pretreated with TGF‐β3. Also, we suggest this treatment modality as another concept of cartilage tissue engineering. © 2008 Wiley Periodicals, Inc. J Biomed Mater Res, 2008