Chinese Journal of Tissue Engineering Research ›› 2015, Vol. 19 ›› Issue (1): 54-60.doi: 10.3969/j.issn.2095-4344.2015.01.010

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Adipose-derived stem cells transfected with adenovirus carrying bone morphogenetic protein 14 for repair of articular cartilage injury

Ma Hong-bin, Li Yun-xiang, Wang Ming-lun   

  1. Department of Orthopedics and Traumatology, Mengyin County Hospital, Mengyin 276200, Shandong Province, China
  • Revised:2014-11-26 Online:2015-01-01 Published:2015-01-01
  • Contact: Li Yun-xiang, Chief physician, Department of Orthopedics and Traumatology, Mengyin County Hospital, Mengyin 276200, Shandong Province, China
  • About author:Ma Hong-bin, Master, Physician, Department of Orthopedics and Traumatology, Mengyin County Hospital, Mengyin 276200, Shandong Province, China

Abstract:

BACKGROUND: The articular cartilage has weak self-repair ability, mainly due to its lack of trophoblast cells in blood vessels and slow cell metabolism. Current treatment methods cannot restore the original function of the cartilage tissue, and cartilage tissue engineering in recent years has garnered increasing attention.
OBJECTIVE: To observe the effect of adipose-derived stem cells transfected with bone morphogenetic protein 14 combined with type I collagen sponge scaffold on the repair of articular cartilage injury in the knee of rabbits.
METHODS: Adipose-derived stem cells were isolated and cultured from rabbit subcutaneous adipose tissue, and transfected with Ad-CMV-BMP-14-IRES-hrGFP-1. Type I collagen sponge scaffold with the transfected adipose-derived stem cells was used to repair articular cartilage injury in the knee of rabbits. Twelve weeks after operation, the articular tissue was taken for gross assessment and histological evaluation.
RESULTS AND CONCLUSION: The expressions of bone morphogenetic protein 14, type II collagen and Sox-9 were higher in cells transfected with bone morphogenetic protein 14 than untransfected ones. At 12 weeks after operation, adipose-derived stem cells transfected with bone morphogenetic protein 14 combined with type I collagen sponge scaffold had good repair effect on articular cartilage injuries, and the injured cartilage tissues were smooth and had good texture, color and integration junction; adipose-derived stem cells combined with type I collagen sponge scaffold could partially repair the injured cartilage tissues that had similar color and texture to normal tissues, and there was a remarkable boundary between the repaired tissue and normal cartilage tissue;  simple type I collagen sponge scaffold was almost collapsed, and no hyaline cartilage tissue formed. These findings indicate that transfection of bone morphogenetic protein 14 can strengthen the ability of adipose-derived stem cells dramatically to repair cartilage injuries.


中国组织工程研究杂志出版内容重点:干细胞;骨髓干细胞;造血干细胞;脂肪干细胞;肿瘤干细胞;胚胎干细胞;脐带脐血干细胞;干细胞诱导;干细胞分化;组织工程


全文链接:

Key words: Adipose Tissue, Mesenchymal Stem Cells, Bone Morphogenetic Proteins, Tissue Engineering

CLC Number: