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Collagen scaffolds functionalized with triple-helical peptides support 3D HUVEC culture

Regenerative Biomaterials 2020年第5期7卷 471-482页

作者： Jean-Daniel Malcor Emma J.Hunter Natalia Davidenko Daniel V.Bax Ruth Cameron Serena Best Sanjay Sinha Richard W.Farndale Department of Biochemistry University of CambridgeCambridge CB21QWUK Department of Materials Science and Metallurgy University of CambridgeCambridge CB30FSUK Division of Medicine and Wellcome Trust Medical Research Council Cambridge Stem Cell InstituteUniversity of CambridgeCambridge CB20AWUK Present address:CambCol Laboratories Ltd Oak Lane Business ParkLittleportElyCambridgeshireCB79RPUK

Porous biomaterials which provide a structural and biological support for cells have immense potential in tissue engineering and cell-based therapies for tissue *** biomaterials that can host endothelial cells represent promising tools for the vascularization of engineered ***-dimensional collagen scaffolds possessing controlled architecture and mechanical stiffness are obtained through freeze–drying of collagen suspensions,followed by chemical cross-linking which maintains their ***,cross-linking scaffolds renders their biological activity suboptimal for many cell types,including human umbilical vein endothelial cells(HUVECs),by inhibiting cell–collagen ***,we have improved crucial HUVEC interactions with such cross-linked collagen biomaterials by covalently coupling combinations of triple-helical peptides(THPs).These are ligands for collagen-binding cell-surface receptors(integrins or discoidin domain receptors)or secreted proteins(SPARC and von Willebrand factor).THPs enhanced HUVEC adhesion,spreading and proliferation on 2D collagen *** grafted to 3D-cross-linked collagen scaffolds promoted cell survival over seven *** study demonstrates that THP-functionalized collagen scaffolds are promising candidates for hosting endothelial cells with potential for the production of vascularized engineered tissues in regenerative medicine applications.

关键词： collagen biomaterial endothelial cells 3D cell scaffold collagen-mimetic peptides

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