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KMID : 0988720090250030293
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Journal of the Korean Academy of Stomatognathic Function and occlusion
2009 Volume.25 No. 3 p.293 ~ p.306
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The Effect of Alkali- and Heat-Treated Titanium Surfaces on Differentiation of Osteoblast
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Kang Choong-Hee
Vang Mong-Sook
Yang Hong-So
Park Sang-Won
Lim Hyun-Pil
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Abstract
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In this study, the biological response of fetal rat calvarial cells on alkali- and heat-treated titanium was assessed. The results were as follows; Cell proliferation on alkali- and heat-treated surfaces showed significantly higher level than on the titanium-6aluminum-4vanadium (weight percentage: 6 % aluminum, 4 % vanadium, Ti-6Al-4V) surface (p<0.01). In ELISA analysis, concentration of IL-1β and IL-6 were raised when the cells were grown to day 7. Pre-treatment with herbimycin, a known tyrosine kinase inhibitor, suppressed the production of IL-6 (p<0.01). In comparison to commercially pure titanium (grade II, cp-Ti) and Ti-6Al-4V alloy, alkali- and heat-treated titanium enhanced alkaline phosphatase activity (p<0.001). In RT-PCR analysis, alkaline phosphatase, bone sialoprotein, receptor activated nuclear factor ligand mRNA expression was increased alkali- and heat-treated titanium. Herbimycin and SB203580, p38 MAPK inhibitor, were repressed of IL-1β-induced IL-6 mRNA expression. These results suggest that alkali- and heat-treated titanium stimulate osteoblasts differentiation and facilitate bone remodeling.
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KEYWORD
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alkali-treated, differentiation, heat-treated, osteoblast, titanium
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