Chinese Journal of Tissue Engineering Research ›› 2016, Vol. 20 ›› Issue (25): 3673-3679.doi: 10.3969/j.issn.2095-4344.2016.25.004

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Effects of hollow porous metal prosthesis combined with inducible factors on growth and osteogenic differentiation of bone marrow mesenchymal stem cells

Zhao Zi-chun, Li Ling-wei, Cao Zhi-qiang, Li Zhao-wei, Li Chun-liang, Qi Yuan-yuan   

  1. Department of Trauma Orthopedics, Affiliated Hospital of Qinghai University, Xining 810000, Qinghai Province, China
  • Received:2016-03-24 Online:2016-06-17 Published:2016-06-17
  • About author:Zhao Zi-chun, Associate chief physician, Department of Trauma Orthopedics, Affiliated Hospital of Qinghai University, Xining 810000, Qinghai Province, China

Abstract:

BACKGROUND: Bone morphogenetic protein in combination with hollow porous titanium alloy can improve the affinity with surrounding bone tissues.

 

OBJECTIVE: To observe the effects of bone morphogenetic protein 2 on growth and osteogenic differentiation of bone marrow mesenchymal stem cells cuftured on a hollow porous metal prosthesis scaffold.

 

METHODS: Passage 3 Sprague-Dawley rat bone marrow mesenchymal stem cells were directly inoculated onto a hollow porous metal prosthesis, and then the scaffold was cultured in DMEM medium containing 0, 0.001, 0.01, 0.06 and 0.1 g/L bone morphogenetic protein 2, respectively. At 6, 12, 24 and 48 hours after inoculation, cell adhesion was detected by MTT assay. Cell osteogenic differentiation was detected by alizarin red staining at 18 days. Besides, Transwell culture was put on the scaffold, and 5x108/L bone marrow mesenchymal stem cells were added into the upper chamber, and DMEM medium containing 0, 0.001, 0.01, 0.06 and 0.1 g/L bone morphogenetic protein 2 were added into the lower chamber to observe cell migration capability after 0, 6, 12, 24 and 48 hours culture.

 

RESULTS AND CONCLUSION:After 6-48 hours of inoculation, different mass concentrations of bone morphogenetic protein 2 promoted adhesion of bone marrow mesenchymal stem cells in a time-dependent manner. After 18 days of inoculation, bone marrow mesenchymal stem cells induced by different mass concentrations of bone morphogenetic protein 2 changed from fusiform to polygon, and arranged in a multilayer and overlapped form. Numerous calcified nodules could be found, which were stained red by alizarin red. Additionally, within 6-48 hours of culture, bone morphogenetic protein 2 could promote the migration of bone marrow mesenchymal stem cells in a concentration-and time-dependent manner. In conclusion, bone morphogenetic protein 2 can enhance the adhesion, osteogenic differentiation and migration of bone marrow mesenchymal stem cells cultured on the hollow porous metal prosthesis.

 

 

 

 

Key words: Bone Morphogenetic Proteins, Prostheses and Implants, Stem Cells, Tissue Engineering

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