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ORIGINAL ARTICLE
Year : 2015  |  Volume : 42  |  Issue : 4  |  Page : 163-169

The regenerative effect of human umbilical cord blood mesenchymal stem cells in a rabbit model of osteoarthritis


1 Department of Rheumatology and Rehabilitation, Faculty of Medicine, Mansoura University, Mansoura, Egypt
2 Department of Clinical Pathology, Faculty of Medicine, Mansoura University, Mansoura, Egypt
3 Department of Pathology, Faculty of Medicine, Mansoura University, Mansoura, Egypt
4 Department of Medical Experimental Research Center (MERC), Faculty of Medicine, Mansoura University, Mansoura, Egypt

Correspondence Address:
Sherif El Bassiony
Department of Rheumatology and Rehabilitation, Faculty of Medicine, Mansoura University, Mansoura
Egypt
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/1110-161X.168151

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Background Osteoarthritis (OA) is a degenerative disorder characterized by changes in subchondral and periarticular bone. The limited number of therapeutic choices for articular injury and disease has increased the need for stem cells as a biological replacement for damaged cartilage. Umbilical cord (UC) blood cells are easily available and less immunogenic than other sources of stem cells, and there are no ethical concerns surrounding their use. These cells are isolated from young donors. Human umbilical cord blood mesenchymal stem cells (HUCB-MSCs) appear to be an ideal candidate for cartilage regeneration. Objective The aim of the study was to investigate the regenerative effect of HUCB stem cells on degenerated articular cartilage in New Zealand white rabbits experimentally induced with OA. Materials and methods This study was performed on 42 New Zealand white rabbits. They were surgically induced with OA in the left knees by cutting the anterior cruciate ligament. After confirmation of the development of OA histopathologically, we delivered a single dose of HUCB-MSCs directly intra-articularly in the cell-treated groups. Controls were injected with only suspension media. Histopathological tests were performed 8 and 24 weeks after injection. Results Histopathologically, 8 weeks after the injection, cell-treated rabbits showed better cartilage quality and lower degree of degeneration, whereas 24 weeks after the injection all parameters in the cell-treated groups were significantly better. Conclusion HUCB-MSCs are a promising stem cell source for cartilage tissue formation and can decrease the development of OA in rabbits.


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