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Regulation of RAW 264.7 macrophages behavior on anodic TiO2 nanotubular arrays 被引量:2

Regulation of RAW 264.7 macrophages behavior on anodic TiO2 nanotubular arrays
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摘要 Titanium (Ti) implants with TiO2 nanotubular arrays on the surface could regulate cells adhesion, proliferation and differentiation to determine the bone integra- tion. Additionally, the regulation of immune cells could improve osteogenesis or lead in appropriate immune reaction. Thus, we evaluate the behavior of RAW 264.7 macrophages on TiO2 nanotubular arrays with a wide range diameter (from 20 to 120 nm) fabricated by an electrochemical anodization process. In this work, the proliferation, cell viability and cytokine/chemokine secretion were evaluated by CCK-8, live/dead staining and ELISA, respectively. SEM and confocal microscopy were used to observe the adhesion morphology. Results showed that the small size nanotube surface was benefit for the macrophages adhesion and proliferation, while larger size surface could reduce the inflammatory response. These findings contribute to the design of immune-regulating Ti implants surface that supports successful implantation. Titanium (Ti) implants with TiO2 nanotubular arrays on the surface could regulate cells adhesion, proliferation and differentiation to determine the bone integra- tion. Additionally, the regulation of immune cells could improve osteogenesis or lead in appropriate immune reaction. Thus, we evaluate the behavior of RAW 264.7 macrophages on TiO2 nanotubular arrays with a wide range diameter (from 20 to 120 nm) fabricated by an electrochemical anodization process. In this work, the proliferation, cell viability and cytokine/chemokine secretion were evaluated by CCK-8, live/dead staining and ELISA, respectively. SEM and confocal microscopy were used to observe the adhesion morphology. Results showed that the small size nanotube surface was benefit for the macrophages adhesion and proliferation, while larger size surface could reduce the inflammatory response. These findings contribute to the design of immune-regulating Ti implants surface that supports successful implantation.
出处 《Frontiers of Materials Science》 SCIE CSCD 2017年第4期318-327,共10页 材料学前沿(英文版)
基金 This work was in part supported by the China Postdoctoral Science Foundation (2016M591075) and the Fundamental Research Funds for the Central Universities (2302016FRF-TP-16- 001A1).
关键词 RAW 264.7 macrophages NANOTOPOGRAPHY TiO2 nanotubular arrays INFLAMMATION RAW 264.7 macrophages nanotopography TiO2 nanotubular arrays inflammation
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