title: Laminin-111-derived peptide-hyaluronate hydrogels as a synthetic basement membrane.
abstract: We have identified a number of cell-adhesive peptides from laminins, a major component of basement membranes. Cell-adhesive peptides derived from basement membrane proteins are potential candidates for incorporating cell-binding activities into scaffold materials for tissue engineering. Our goal is development of a chemically synthetic basement membrane using laminin-derived cell-adhesive peptides and polymeric materials. In this study, we used hyaluronic acid (HA) as a scaffold material and laminin-derived cell-adhesive peptides, A99 (AGTFALRGDNPQG, binds to integrin αvβ3), AG73 (RKRLQVQLSIRT, binds to syndecans), and an A99/AG73 mixture (molar ratio = 9:1) conjugated to two-dimensional (2D) HA matrices. As a result, it was found that the 2D A99/AG73-HA matrices have strong biological functions, such as cell attachment, cell spreading, and neurite outgrowth, similar to that of basement membrane extract (BME)-coated plates. Next, we developed three-dimensional (3D) peptide-HA matrices using the A99/AG73 mixture. The 3D A99/AG73-HA matrices promoted cell spreading and improved cell viability and collagen gene expression. Further, PC12 neurite extension was observed in the 3D A99/AG73-HA matrices. These biological activities of the 3D A99/AG73-HA matrices were similar to those of the 3D BME matrices. These results suggest that the peptide-HA matrices are useful as 2D and 3D matrices and can be applied for tissue engineering as a synthetic basement membrane.
authors.affiliation: Department of Clinical Biochemistry, Faculty of Pharmacy, Tokyo University of Pharmacy and Life Sciences, Hachioji, Tokyo 192-0392, Japan.
authors.forename: Yuji
authors.initials: Y
authors.lastname: Yamada
authors.forename: Kentaro
authors.initials: K
authors.lastname: Hozumi
authors.forename: Fumihiko
authors.initials: F
authors.lastname: Katagiri
authors.forename: Yamato
authors.initials: Y
authors.lastname: Kikkawa
authors.forename: Motoyoshi
authors.initials: M
authors.lastname: Nomizu
mesh_terms: D000818:Animals; D001485:Basement Membrane; D002460:Cell Line; D006801:Humans; D006820:Hyaluronic Acid / Q000737:chemistry*; D020100:Hydrogels / Q000737:chemistry*; D007797:Laminin / Q000737:chemistry*; D008567:Membranes, Artificial; D016501:Neurites; D016716:PC12 Cells; D010455:Peptides / Q000737:chemistry*; D016133:Polymerase Chain Reaction; D051381:Rats
chemical_list: D020100:Hydrogels; D007797:Laminin; D008567:Membranes, Artificial; D010455:Peptides; D006820:Hyaluronic Acid