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Effect of Fibronectin-Coated Micro-Grooved Titanium Surface on Alignment, Adhesion, and Proliferation of Human Gingival Fibroblasts

Xiaochong Jian, Wenxiu Huang, Dong Wu, Dongdong You, Zhaonan Lin, Jiang Chen

School of Stomatology, Fujian Medical University, Fuzhou, Fujian, China (mainland)

Med Sci Monit 2017; 23:4749-4759

DOI: 10.12659/MSM.903883

Available online:

Published: 2017-10-04


BACKGROUND: Surface characters of culture plates affect cellular behaviors such as cellular alignment and elongation. Microgrooves guide the cell growth along the grooves and spread. The aim of this study was to observe the effect of fibronectin (FN)-coated micro-grooved titanium plates on the alignment, spread, adhesion, and proliferation of human gingival fibroblasts (HGFs).
MATERIAL AND METHODS: Micro-grooved titanium plates were fabricated, and FN was immobilized onto the micro-grooved surfaces using silanization. HGFs were cultured on the smoothed or micro-grooved (with 35 µm width, 15 µm bridge, 10 µm depth) titanium plates, with or without the FN coating. We assessed the water contact angle and blood compatibility of the surfaces, and the earlier adhesion, adhesion strength, proliferation and morphology of the cells growing on the different titanium surfaces.
RESULTS: The results revealed that the blood hemolysis rates of different titanium surfaces were within the safety limits. HGFs aligned along the grooves, spread out more evidently, and showed significantly more adhesion in the FN-coated micro-grooved surface compared with other surfaces (p<0.05).
CONCLUSIONS: The micro-grooved surface coated with FN guides the HGFs to align along the grooves, and promotes cell spread, adhesion and proliferation, which might be used to improve the efficacy of dental implants.

Keywords: Fibroblasts, Fibronectins, Titanium



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