title: A smart bilayer scaffold of elastin-like recombinamer and collagen for soft tissue engineering.
abstract: Elastin-like recombinamers (ELRs) are smart, protein-based polymers designed with desired peptide sequences using recombinant DNA technology. The aim of the present study was to produce improved tissue engineering scaffolds from collagen and an elastin-like protein tailored to contain the cell adhesion peptide RGD, and to investigate the structural and mechanical capacities of the resulting scaffolds (foams, fibers and foam-fiber bilayer scaffolds). The results of the scanning electron microscopy, mercury porosimetry and mechanical testing indicated that incorporation of ELR into the scaffolds improved the uniformity and continuity of the pore network, decreased the pore size (from 200 to 20 μm) and the fiber diameter (from 1.179 μm to 306 nm), broadened the pore size distribution (from 70-200 to 4-200 μm) and increased their flexibility (from 0.007 to 0.011 kPa⁻¹). Culture of human fibroblasts and epithelial cells in ELR-collagen scaffolds showed the positive contribution of ELR on proliferation of both types of cells.
authors.affiliation: Banque de Tissus et Cellules, Hospices Civils de Lyon, 69437 Lyon, France.
authors.forename: Beste
authors.initials: B
authors.lastname: Kinikoglu
authors.forename: José Carlos
authors.initials: JC
authors.lastname: Rodríguez-Cabello
authors.forename: Odile
authors.initials: O
authors.lastname: Damour
authors.forename: Vasif
authors.initials: V
authors.lastname: Hasirci
mesh_terms: D000595:Amino Acid Sequence; D000818:Animals; D002478:Cells, Cultured; D003094:Collagen / Q000737:chemistry* / Q000378:metabolism / Q000494:pharmacology; D003238:Connective Tissue / Q000502:physiology; D004549:Elastin / Q000737:chemistry* / Q000378:metabolism; D006801:Humans; D008422:Materials Testing; D008567:Membranes, Artificial; D008954:Models, Biological; D008969:Molecular Sequence Data; D011108:Polymers / Q000737:chemistry / Q000378:metabolism / Q000494:pharmacology; D051381:Rats; D017207:Rats, Sprague-Dawley; D011994:Recombinant Proteins / Q000737:chemistry / Q000494:pharmacology; D023822:Tissue Engineering / Q000295:instrumentation* / Q000379:methods; D054457:Tissue Scaffolds / Q000737:chemistry*
chemical_list: D008567:Membranes, Artificial; D011108:Polymers; D011994:Recombinant Proteins; D003094:Collagen; D004549:Elastin