Regulation of RAW 264.7 macrophages behavior on anodic TiO2 nanotubular arrays

Shenglian YAO , Xujia FENG , Wenhao LI , Lu-Ning WANG , Xiumei WANG

Front. Mater. Sci. ›› 2017, Vol. 11 ›› Issue (4) : 318 -327.

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Front. Mater. Sci. ›› 2017, Vol. 11 ›› Issue (4) : 318 -327. DOI: 10.1007/s11706-017-0402-z
RESEARCH ARTICLE
RESEARCH ARTICLE

Regulation of RAW 264.7 macrophages behavior on anodic TiO2 nanotubular arrays

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Abstract

Titanium (Ti) implants with TiO2 nanotubular arrays on the surface could regulate cells adhesion, proliferation and differentiation to determine the bone integration. 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.

Keywords

RAW 264.7 macrophages / nanotopography / TiO 2 nanotubular arrays / inflammation

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Shenglian YAO, Xujia FENG, Wenhao LI, Lu-Ning WANG, Xiumei WANG. Regulation of RAW 264.7 macrophages behavior on anodic TiO2 nanotubular arrays. Front. Mater. Sci., 2017, 11(4): 318-327 DOI:10.1007/s11706-017-0402-z

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