콘드로이틴 황산염을 결합한 I형 콜라겐지지체와 연골세포를 이용한 연골재생
- Affiliated Author(s)
- 손대구; 한기환
- Alternative Author(s)
- Son, Dae Gu; Han, Ki Hwan
- Journal Title
- 대한성형외과학회지
- ISSN
- 1015-6402
- Issued Date
- 2007
- Abstract
- PURPOSE: In this study, porous type I collagen scaffolds were cross-linked using dehydrothermal(DHT) treatment and/or 1-ethyl-3-(3-dimethyl aminopropyl) carbodiimide(EDC), in the presence and absence of chondroitin-6-sulfate(CS) and cultured autologous chondrocytes(Chondro) for cartilage regeneration.
METHODS: Cartilage defects were created in the proximal part of the ear of New Zealand rabbits. Four prepared types of scaffolds(n=4) were inserted. The groups included Chondro-Collagen-DHT(Group 1), Chondro- Collagen-DHT-EDC(Group 2), Chondro-CS-Collagen- DHT(Group 3), and Chondro-CS-Collagen-DHT-EDC (Group 4). Histomorphometric analysis and cartilage- specific gene expression of the reconstructed tissues were evaluated 4, 8, and 12 weeks after implantation.
RESULTS: EDC cross-linked groups 2 and 4 regenerated more cartilage than other groups. However, calcification was observed in the 4th week after implantation. CS did not increase chondrogenesis in all groups. Cartilage-specific type II collagen mRNA expression increased in the course of time in all groups.
CONCLUSION: EDC cross-linking methods maintain the scaffold and promote extracellular matrix production of chondrocytes.
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