Journal of Oral Science Research ›› 2021, Vol. 37 ›› Issue (4): 371-374.DOI: 10.13701/j.cnki.kqyxyj.2021.04.020

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Copper-doped Titanium Alloy Inhibited RANKL-induced Osteoclasts Differentiation in Vitro

XU Xiongcheng1,2, ZHUO Jin1,2, XU Yanmei 1,2, LUO Kai1,2, CHEN Chao2*, ZHONG Quan2*   

  1. 1. Fujian Key Laboratory of Oral Diseases & Fujian Provincial Engineering Research Center of Oral Biomaterial & Stomatological Key laboratory of Fujian College and University, School and Hospital of Stomatology, Fujian Medical University, Fuzhou 350002, China;
    2. Institute of Stomatology & Laboratory of Oral Tissue Engineering, School and Hospital of Stomatology, Fujian Medical University, Fuzhou 350002, China
  • Received:2020-12-16 Published:2021-04-15

Abstract: Objective: To study the effect of copper-doped titanium alloys on osteoclasts differentiation. Methods: Copper-doped titanium alloys were prepared by using the technique of selective laser melting (SLM). Mouse monocytes (RAW264.7) were induced to differentiate to osteoclasts by RANKL. Copper-doped titanium alloys was co-cultured with osteoclasts. The morphology of osteoclasts was observed under a fluorescence microscope. The number of osteoclasts was recorded, and the expression of genes related to osteoclast differentiation was detected by real-time fluorescence quantitative PCR. Results: Induced by RANKL, mouse monocytes could differentiate into osteoclasts in vitro. Copper-doped titanium alloys could not only inhibit the differentiation of monocytes (RAW264.7) which generated osteoclasts, but also inhibit the expression of osteoclast-related genes CTSK, TRAP, NFATc1, and NF-κB. Conclusion: Copper-doped titanium alloys can inhibit the activity of osteoclasts and is expected to be used in the preparation of titanium mesh which has potential application value for alveolar bone regeneration.

Key words: titanium alloy, copper, osteoclast differentiation, scaffold