期刊
BIOMATERIALS
卷 26, 期 34, 页码 6932-6940出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biomaterials.2005.04.054
关键词
cyclo-DfKRG peptide; osteoblast; differentiation; adhesion
This study takes place in the field of development of a bioactive surface of titanium alloys. In this paper, titanium was functionalized with cyclo-DfKRG peptide by coating or grafting using different anchors (thiol or phosphonate) as spacers between the surface and the peptide. Cell adhesion, and differentiation of human osteoprogenitor (HOP) cells arising from human bone marrow were investigated. Our results seem to demonstrate that cyclo-DfYRG peptide coating with a phosphonate anchor and grafting procedure contributes to higher cell adhesion and a strong ALP and Cbfal mRNA expression, after 10 days of cell seeding. At the contrary, this peptide coated with a thiol anchor stimulates differentiation of HOP within 3 days of culture. (c) 2005 Elsevier Ltd. All rights reserved.
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