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- W2145655108 abstract "Functional coatings on titanium vascular stents and endosseous dental implants could probably enhance endothelial cell (EC) adhesion and activity with a shortening of the wound healing time and an increase of peri-implant angiogenesis during early bone formation. Therefore, the role of the structure of linear and cyclic cell adhesive peptides Arg-Gly-Asp (l-RGD and c-RGD) on differently pre-treated titanium (Ti) surfaces (untreated, silanised vs. functionalised with l- and c-RGD peptides) on EC cell coverage and proliferation was evaluated. After 24 h and after 3 d, surface coverage of adherent cells was quantified and an alamarBlue® proliferation assay was conducted. After 24 h, l-RGD modified surfaces showed a significantly better coverage of adhered cells than untreated titanium (p=0.01). Differences between l-RGD surfaces and silanised Ti (p=0.066) as well as between l-RGD and c-RGD surfaces (p=0.191) were not significant. After 3 d, c-RGD surfaces showed a significantly higher cell coverage than untreated Ti, silanised and l-RGD titanium surfaces (all p<0.0001). After 24 h, c-RGD modified surfaces showed significant higher cell proliferation compared to untreated Ti (p=0.003). However, there were no differences in proliferation between c-RGD and l-RGD (p=0.126) or c-RGD and silanised titanium (p=0.196). After 3 d, proliferation on c-RGD surfaces outranged significantly untreated titanium (p=0.004), silanised (p=0.001) and l-RGD surfaces (p=0.023), whereas no significant difference could be found between untreated Ti and l-RGD surfaces (p=0.54). According to these results, the biomimetic coating of c-RGD peptides on conventional titanium surfaces showed a positive effect on EC cell coverage and proliferation. We were able to show that modifications of titanium surfaces with c-RGD are a promising approach in promoting endothelial cell growth." @default.
- W2145655108 created "2016-06-24" @default.
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- W2145655108 date "2011-04-11" @default.
- W2145655108 modified "2023-09-30" @default.
- W2145655108 title "Immobilisation of linear and cyclic RGD-peptides on titanium surfaces and their impact on endothelial cell adhesion and proliferation" @default.
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- W2145655108 doi "https://doi.org/10.22203/ecm.v021a27" @default.
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