Chinese Journal of Tissue Engineering Research ›› 2019, Vol. 23 ›› Issue (6): 894-900.doi: 10.3969/j.issn.2095-4344.1572

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Influence of different wear particles on human peripheral blood mononuclear cells in vitro

Li Peng, Yang Shuye, Zhang Kai, Jia Long, Du Gangqiang, Liu Dong, Zhang Xinjun, Zhang Degang, Wang Zhigang   

  1. Department of Trauma Orthopedics, Binzhou Medical University Hospital, Binzhou 256600, Shandong Province, China
  • Received:2018-10-26 Online:2019-02-28 Published:2019-02-28
  • Contact: Zhang Kai, MD, Chief physician, Master’s supervisor, Department of Trauma Orthopedics, Binzhou Medical University Hospital, Binzhou 256600, Shandong Province, China
  • About author:Li Peng, Master, Physician, Department of Trauma Orthopedics, Binzhou Medical University Hospital, Binzhou 256600, Shandong Province, China
  • Supported by:

    the National Natural Science Foundation of China, No. 81241061 (to ZK); Shandong Provincial Medical and Health Technology Development Project, No. 2016WS0023 (to YSY)

Abstract:

BACKGROUND: After artificial joint replacement, daily activities lead to the production of a large number of titanium 6 aluminium 4 vanadium (Ti6Al4V), polymethylmethacrylate (PMMA), ultra-high-molecular-weight-polyethylene (UHMWPE) and chromium-cobalt alloy (Co-Cr) particles, activating monocytes to release a large number of inflammatory cytokines and chemokines, including a series of biological cascade reactions, such as inducing bone dissolution and forming pseudo-granuloma, and eventually leading to aseptic loosening of the prosthesis.

OBJECTIVE: To investigate the effect of Ti6Al4V, PMMA, UHMWPE and Co-Cr particles on tumor necrosis factor-α, interleukin-1 and interleukin-6 in the human peripheral blood monocytes cultured in vitro and to explore the underlying mechanism of aseptic loosening of the prosthesis by inducing bone dissolution.
METHODS: Human peripheral blood mononuclear cells were cultured with Ti6Al4V, PMMA, UHMWPE and Co-Cr particles at different concentrations. After 72 hours of culture, ELISA technique was utilized to quantify the secretion of different cytokines includes tumor necrosis factor-α, interleukin-1 and interleukin-6. We observed the influence of different wear particle concentrations and particle properties on the viability of human peripheral blood mononuclear cells.
RESULTS AND CONCLUSION: Cell viability exceeded 95% for all groups, except for 87% in the Co-Cr group when the particle/cell ratio was
1 000. Compared with the naive mononuclear cells (particle/cell ratio of 0), the expression of tumor necrosis factor-α, interleukin-1 and interleukin-6 in the activated mononuclear cells increased significantly when the particle/cell ratio was 10, 100 and 1 000 (P < 0.05). Ti6Al4V, PMMA and UHMWPE particles stimulated human mononuclear cells to overexpress tumor necrosis factor-α, interleukin-1 and interleukin-6, which were positively correlated with the concentration of particles. However, when the Co-Cr particle/cells ratio was 1 000, the expression levels of tumor necrosis factor-α, interleukin-1 and interleukin-6 were decreased. During the osteolysis reaction, Ti6Al4V particles had strongest biological activity, followed by Co-Cr and PMMA particles, and the biological activity of UHMWPE particles was lowest. Ti6Al4V, PMMA, UHMWPE and Co-Cr particles showed dose-dependent effects on the human peripheral blood mononuclear factors during the osteolysis.  

Key words: Arthroplasty, Replacement, Particulate Matter, Monocytes, Tumor Necrosis Factor-alpha, Interleukin-1, Interleukin-6, Tissue Engineering

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