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Chinese Journal of Geriatric Orthopaedics and Rehabilitation(Electronic Edition) ›› 2019, Vol. 05 ›› Issue (02): 82-86. doi: 10.3877/cma.j.issn.2096-0263.2019.02.004

Special Issue:

• Basic Research • Previous Articles     Next Articles

Research on bone marrow derived-mesenchymal stem cells and human umbilical cord blood derived-mesenchymal stem cells modified with the gene of human bone morphogenetic protein-2

Jie Zhang1, Hui Huang2, Junguo Wang3, Yi Sun4, Haining Zhang4,(), Yingzhen Wang4   

  1. 1. Department of Endocrinology, Weifang Traditional Chinese Hosptial, Weifang 261000, China
    2. Department of Anesthesiology, the Affiliated Hospital of Qingdao University, Qingdao 266000, China
    3. Department of Joint Surgery, Qingdao Haici Hosptial, Qingdao 266000, China
    4. Department of Joint Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266000, China
  • Received:2018-09-20 Online:2019-04-05 Published:2019-04-05
  • Contact: Haining Zhang

Abstract:

Objective

To study the modification of bone marrow and human umbilical cord blood mesenchymal stem cells with hBMP-2 gene and compare the modification results.

Methods

Bone marrow and human umbilical cord blood mesenchymal stem cells were separated and cultured by density gradient centrifugation and adherent culture. The recombinant hBMP-2 plasmid was transfected into bone marrow and human umbilical cord blood mesenchymal stem cells by high-performance non-liposome reagent X-treme GENE. The fluorescence intensity was measured by inverted fluorescence microscopy and the transfection efficiency was calculated. The hBMP was detected by qPCR. The expression of-2 and chondronectin in two kinds of cells was detected by immunohistochemistry.

Results

Bone marrow and human umbilical cord blood mesenchymal stem cells were successfully isolated and cultured. The two cells had different growth characteristics. The recombinant hBMP-2 plasmid mediated by high-performance non-liposome reagent was successfully transfected into bone marrow and human umbilical cord blood mesenchymal stem cells. The efficiency of transfection of bone marrow mesenchymal stem cells (18.44±5.94)% was lower than that of human umbilical cord blood mesenchymal stem cells (27.74±7.59)%, and the difference was statistically significant (t=3.027, P<0.05). The expression of hBMP-2, cartilage connectin and collagen type II were detected in both transfected cells.

Conclusion

hBMP-2 gene can effectively modify bone marrow and human umbilical cord blood mesenchymal stem cells and promote chondrocyte differentiation.

Key words: BMP2 protein, human, Mesenchymal stem cells, Liposomes

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