Improved adhesion and differentiation of endothelial cells on surface‐attached fibrin structures containing extracellular matrix proteins
- 30 May 2013
- journal article
- research article
- Published by Wiley in Journal of Biomedical Materials Research Part A
- Vol. 102 (3), 698-712
- https://doi.org/10.1002/jbm.a.34733
Abstract
Currently used vascular prostheses are hydrophobic and do not allow endothelial cell (EC) adhesion and growth. The aim of this study was to prepare fibrin (Fb)-based two-dimensional (2D) and three-dimensional (3D) assemblies coated with extracellular matrix (ECM) proteins and to evaluate the EC adhesion, proliferation and differentiation on these assemblies in vitro. Coating of Fb with collagen, laminin (LM), and fibronectin (FN) was proved using the surface plasmon resonance technique. On all Fb assemblies, ECs reached higher cell densities than on polystyrene after 3 and 7 days of culture. Immunoflurescence staining showed better assembly of talin and vinculin into focal adhesion plaques, and also more apparent staining of vascular endothelial cadherin on surface-attached 3D Fb and protein-coated Fb assemblies. On these samples, ECs also contained a lower concentration of intercellular adhesion molecule-1, measured by enzyme-linked immunosorbent assay. Higher concentrations of CD31 (platelet-endothelial cell adhesion molecule-1) were found on 3D Fb coated with LM, and higher concentrations of von Willebrand factor were found on 3D Fb coated with type I collagen or LM in comparison to 2D Fb layers. The results indicate that ECM protein-coated 2D and 3D Fb assemblies can be used for versatile applications in various tissue replacements where endothelialization is desirable, for example, vascular prostheses and heart valves. © 2013 Wiley Periodicals, Inc. J Biomed Mater Res Part A: 102A: 698–712, 2014.Keywords
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