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Biomed Pharmacother. 2012 Dec;66(8):633-41. doi: 10.1016/j.biopha.2012.08.008. Epub 2012 Sep 27.

Proliferation and differentiation of osteoblastic cells on silicon-doped TiO(2) film deposited by cathodic arc.

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1
Department of Orthopedics, The First Affiliated Hospital of Soochow University, Suzhou, Jiangsu, People's Republic of China.

Abstract

This study aimed at the proliferation and differentiation of osteoblastic cells on silicon-doped TiO(2) and pure TiO(2) films prepared by cathodic arc deposition. The films were examined by X-ray photo-electron spectroscopy, which showed that silicon was successfully doped into the Si-TiO(2) film. Meanwhile, no significant difference was found between the surface morphology of silicon-doped TiO(2) and pure TiO(2) films. When osteoblastic cells were cultured on silicon-doped TiO(2) film, accelerated cell proliferation was observed. Furthermore, cell differentiation was evaluated using alkaline phosphatase (ALP), type I collagen (COL I) and osteocalcin (OC) as differentiation markers. It was found that ALP activity, the expression levels of OC gene, COL I gene and protein were up-regulated on silicon-doped TiO(2) film at 3 and 5 days of culture. Moreover, no significant difference was found in apoptosis between the cells cultured on silicon-doped TiO(2) and pure TiO(2) films. Therefore, findings from this study indicate that silicon-doped film favors osteoblastic proliferation and differentiation, and has the potential for surface modification of implants in the future.

PMID:
23089479
DOI:
10.1016/j.biopha.2012.08.008
[Indexed for MEDLINE]
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