Improving dental epithelial junction on dental implants with bioengineered peptides

Panayotov, Ivan V. and Végh, Attila Gergely and Martin, Marta and Vladimirov, Boyan and Larroque, Christian and Gergely, Csilla and Cuisinier, Frédéric J. G. and Estephan, Elias (2023) Improving dental epithelial junction on dental implants with bioengineered peptides. FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY, 11. ISSN 2296-4185

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Abstract

Introduction: The functionalization of titanium (Ti) and titanium alloys (Ti6Al4V) implant surfaces via material-specific peptides influence host/biomaterial interaction. The impact of using peptides as molecular linkers between cells and implant material to improve keratinocyte adhesion is reported.Results: The metal binding peptides (MBP-1, MBP-2) SVSVGMKPSPRP and WDPPTLKRPVSP were selected via phage display and combined with laminin-5 or E-cadherin epithelial cell specific peptides (CSP-1, CSP-2) to engineer four metal-cell specific peptides (MCSPs). Single-cell force spectroscopy and cell adhesion experiments were performed to select the most promising candidate. In vivo tests using the dental implant for rats showed that the selected bi functional peptide not only enabled stable cell adhesion on the trans-gingival part of the dental implant but also arrested the unwanted apical migration of epithelial cells.Conclusion: The results demonstrated the outstanding performance of the bioengineered peptide in improving epithelial adhesion to Ti based implants and pointed towards promising new opportunities for applications in clinical practice.

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