The effect of the surface modification of titanium using a recombinant fragment of fibronectin and vitronectin on cell behavior.
The surface of titanium implants is in direct contact with host tissue and plays a critical role in determining biocompatibility. Fibronectin ( FN) and vitronectin ( VN) are major cell adhesive proteins found in the extracellular matrix ( ECM) of various tissues, and in circulating blood. The aim of this study was to evaluate the engineered biomimetic surface of titanium by using recombinant fragment of FN(8-10) and VN(NTD) that contains the binding site for integrins. MC3T3-E1 cells seeded upon the FN(8-10)-coated titanium showed a marked increase in cell adhesion, proliferation, and differentiation over VN(NTD)-coated titanium. In addition, we confirmed that the surface properties of titanium prefer for FN(8-10) over VN(NTD) (p<0.05) in protein adhesion. These results suggest that the FN(8-10)-modified titanium surface can be used to improve the osseointegration of titanium implants by enhancing bone formation.[1]References
- The effect of the surface modification of titanium using a recombinant fragment of fibronectin and vitronectin on cell behavior. Ku, Y., Chung, C.P., Jang, J.H. Biomaterials (2005) [Pubmed]
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