Chinese Journal of Tissue Engineering Research ›› 2024, Vol. 28 ›› Issue (17): 2696-2701.doi: 10.12307/2024.410

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Effect of domestic porous tantalum modified by osteogenic induction factor slow-release system on function of MG63 cells

Guo Xiaoling1, Li Yueyuan2, Xu Tianjie1, Zhang Hui3, Wang Zhiqiang2, Wang Qian1   

  1. 1Basic Medical College of North China University of Science and Technology, Tangshan 063000, Hebei Province, China; 2Department of Orthopedics, Affiliated Hospital of North China University of Science and Technology, Tangshan 063000, Hebei Province, China; 3First Department of Arthrology, Tangshan Second Hospital, Tangshan 063000, Hebei Province, China
  • Received:2023-06-10 Accepted:2023-07-20 Online:2024-06-18 Published:2023-12-15
  • Contact: Wang Qian, MD, Associate professor, Master’s supervisor, Basic Medical College of North China University of Science and Technology, Tangshan 063000, Hebei Province, China
  • About author:Guo Xiaoling, Master candidate, Basic Medical College of North China University of Science and Technology, Tangshan 063000, Hebei Province, China
  • Supported by:
    National Science and Technology Support Program, No. 2012BAE06B03 (to WZQ); Hebei Province Science and Technology Support Project, No. 16277776D (to WZQ); Three-Three Talent Project, No. C20221117 (to ZH); 2023 Medical Science Research Project in Hebei Province, No. 20230215 (to WQ)

Abstract: BACKGROUND: Previous research by the research team found that domestically produced porous tantalum is beneficial for early adhesion and proliferation of MG63 cells, and can be used as a scaffold material for bone tissue engineering.
OBJECTIVE: To investigate the effect of domestic porous tantalum modified by osteogenic induction factor slow-release system on the adhesion, proliferation, and differentiation of MG63 cells. 
METHODS: Osteogenic induction factor slow-release system was constructed by adding 15% volume fraction of osteogenic factor solution to poly(lactic-co-glycolic-acid) gel. The passage 3 MG63 cells were inoculated on a porous tantalum surface (control group), porous tantalum surface coated with poly(lactic-co-glycolic-acid) copolymer gel (gel group), and porous tantalum surface coated with osteoblastic induction factor slow-release system (slow-release system group), and co-cultured for 5 days. The surface cytoskeleton of the material was observed by phalloidine staining. Cell proliferation was detected by flow cytometry. Western blot assay and RT-qPCR were used to detect the protein and mRNA expressions of type I collagen, osteopontin, and RUNX-2 on the surface cells of the material.
RESULTS AND CONCLUSION: (1) Phalloidine staining showed that MG63 cells adhered to and grew on the surface and inside of the three groups of porous tantalum, and the matrix secreted by the cells covered the surface of the material. (2) Flow cytometry showed that the cell proliferation in the slow-release system group was faster than that in the control group and the gel group (P < 0.05). (3) Western blot assay and RT-qPCR showed that the protein and mRNA expressions of type I collagen, osteopontin, and RUNX-2 in the slow-release system group were higher than those in the control group and gel group (P < 0.05). (4) The results showed that the domestic porous tantalum modified by the osteogenic induction factor slow-release system was beneficial to the adhesion, proliferation, and differentiation of MG63 osteoblasts.

Key words: porous tantalum, MG63 cell, slow-release system, osteogenic induction factor, poly(lactic-co-glycolic-acid) copolymer

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