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The Study of Differentiation of Bone Mesenchymal Stem Cells Transplanted in Intervertebral Disc and Expression of Exogenous Gene (30400163)


The study of migration of bone mesenchymal stem cells transplanted in intervertebral discs of rabbits and expression of exogenous gene
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    Objective: To explore the survival and migration of bone mesenchymal stem cells transplantated in intervertebral disc of rabbits and expression of the exogenic genes. Methods: Thirty-two rabbits were used, A randomized block design was used and discs in the same rabbit were one block,the lumbar discs from L2-3 to L5-6 were randomly divided into blank group, saline group, cell transplantation group Ⅰ and cell transplantation group Ⅱ. The fluorescence microscopy was used to determine the fluorescence of the maker protein GFP and DNA-PCR was used to analyze the copies of DNA of neomycin-resistant gene at 1, 3, 6, months after transplantation. Results: There was fluorescence in cell transplantation group Ⅰ and Ⅱ and none in blank group, saline group at 1, 3, 6 months after transplantation. In cell transplantation groups,the fluorescent distribution was more scatter with time, but no significant difference between cell groups Ⅰ and Ⅱ. The test of neomycin resistant gene expressed in cell transplantation group Ⅰ and Ⅱ and quantitative analysis showed that there was no significant difference between the cell groups Ⅰ and Ⅱ (P>0.05). Conclusion: The transplanted bone mesenchymal stem cells can survive, migrate and the transfer genes can express efficiently, it suggests that the BMSC therapy may be effective to prevent and treat intervertebral disc degeneration.

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Jintang Wang, Hong Zhang, Yingang Zhang, Xiaowei Zhang, Meng Li.[J].南京医科大学学报(自然科学版),2006,20(5):287-291

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