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Design of Decorin-Based Peptides That Bind to CollagenI and their Potential as Adhesion Moieties in Biomaterials

  • Mimicking the binding epitopes of protein-protein interactions by using small peptides is important for generating modular biomimetic systems. A strategy is described for the design of such bioactive peptides without accessible structural data for the targeted interaction, and the effect of incorporating such adhesion peptides in complex biomaterial systems is demonstrated. The highly repetitive structure of decorin was analyzed to identify peptides that are representative of the inner and outer surface, and it was shown that only peptides based on the inner surface of decorin bind to collagen. The peptide with the highest binding affinity for collagenI, LHERHLNNN, served to slow down the diffusion of a conjugated dye in a collagen gel, while its dimer could physically crosslink collagen, thereby enhancing the elastic modulus of the gel by one order of magnitude. These results show the potential of the identified peptides for the design of biomaterials for applications in regenerative medicine.

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Author:Stefania Federico, Benjamin F. Pierce, Susanna Piluso, Christian Wischke, Andreas LendleinORCiDGND, Axel T. Neffe
ISSN:1433-7851 (print)
ISSN:1521-3773 (online)
Pubmed Id:http://www.ncbi.nlm.nih.gov/pubmed?term=26216251
Parent Title (English):Angewandte Chemie : a journal of the Gesellschaft Deutscher Chemiker ; International edition
Place of publication:Weinheim
Document Type:Article
Year of first Publication:2015
Year of Completion:2015
Release Date:2017/03/27
Tag:biomaterials; collagen; gels; peptides; protein-protein interactions
First Page:10980
Last Page:10984
Organizational units:Mathematisch-Naturwissenschaftliche Fakultät / Institut für Chemie
Peer Review:Referiert