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Human endothelial cell attachment and proliferation on a novel vascular graft prototype
Author(s) -
Knetsch Menno L. W.,
Aldenhoff Yvette B. J.,
Schraven Martijn,
Koole Leo H.
Publication year - 2004
Publication title -
journal of biomedical materials research part a
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.849
H-Index - 150
eISSN - 1552-4965
pISSN - 1549-3296
DOI - 10.1002/jbm.a.30195
Subject(s) - materials science , heparin , coating , biomedical engineering , endothelial stem cell , in vivo , protein adsorption , biophysics , polymer , in vitro , nanotechnology , composite material , biochemistry , chemistry , biology , medicine , microbiology and biotechnology
A new vascular prosthesis prototype was assessed for its ability to support an endothelial cell layer in vitro . A coiled tubular structure, constructed from polymer‐coated metallic wires, with an internal diameter of 690 μm, was used. Addition of heparin to the surface coating of the coil strongly enhanced the blood compatibility of the device. A series of coils with five different coatings, increasing in hydrophilicity, was studied. Heparin was added to one series, another series did not contain this anticoagulant drug. Upon contact with blood, a vascular prosthesis will instantaneously adsorb plasma proteins on its surface, and these proteins will influence the behavior of cells binding to the device. When coils were treated with human plasma proteins, mimicking the in vivo situation, human microvascular endothelial cells grew well on all coils studied, irrespective of the hydrophilicity of the underlying coating or the addition of heparin. For control coils, only endothelial cell growth on the most hydrophobic surfaces, and a moderate enhancing effect for heparin, were observed. This novel vascular graft prototype seems well suited for the support of an endothelial cell layer, especially when plasma proteins are adsorbed to its surface, and shows promise for in vivo testing. © 2004 Wiley Periodicals, Inc. J Biomed Mater Res 71A: 615–624, 2004