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논문 기본 정보

자료유형
학술저널
저자정보
(King Abdulaziz University) (King Abdulaziz University) (King Abdulaziz University) (King Abdulaziz University) (King Abdulaziz University) (King Abdulaziz University) (University of Jeddah) (King Abdulaziz University) (King Abdulaziz University)
저널정보
한국조직공학과 재생의학회 조직공학과 재생의학 조직공학과 재생의학 제15권 제5호
발행연도
수록면
661 - 671 (11page)

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초록· 키워드

BACKGROUND: Mesenchymal stem cells (MSCs) and/or biological scaffolds have been used to regenerate articular cartilage with variable success. In the present study we evaluated cartilage regeneration using a combination of bone marrow (BM)-MSCs, HyalofastTM and/or native cartilage tissue following full thickness surgical cartilage defect in rabbits. METHODS: Full-thickness surgical ablation of the medial-tibial cartilage was performed in New Zealand white (NZW) rabbits. Control rabbits (Group-I) received no treatment; Animals in other groups were treated as follows. Group-II: BMMSCs (1 9 106 cells) ? HyalofastTM; Group-III: BMMSCs (1 9 106 cells) ? cartilage pellet (CP); and Group-IV: BMMSCs (1 9 106 cells) ? HyalofastTM ? CP. Animals were sacrificed at 12 weeks and cartilage regeneration analyzed using histopathology, International Cartilage Repair Society (ICRS-II) score, magnetic resonance observation of cartilage repair tissue (MOCART) score and biomechanical studies. RESULTS: Gross images showed good tissue repair (Groups IV[III[Group II) and histology demonstrated intact superficial layer, normal chondrocyte arrangement, tidemark and cartilage matrix staining (Groups III and IV) compared to the untreated control (Group I) respectively. ICRS-II score was 52.5, 65.0, 66 and 75% (Groups I–IV) and the MOCART score was 50.0, 73.75 and 76.25 (Groups II–IV) respectively. Biomechanical properties of the regenerated cartilage tissue in Group IV closed resembled that of a normal cartilage. CONCLUSION: HyalofastTM together with BM-MSCs and CP led to efficient cartilage regeneration following full thickness surgical ablation of tibial articular cartilage in vivo in rabbits. Presence of hyaluronic acid in the scaffold and native microenvironment cues probably facilitated differentiation and integration of BM-MSCs.
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