Abstract
An interesting issue in tissue engineering is the development of a biodegradable vascular graft able to substitute a blood vessel and to allow its complete regeneration. Here, we report a new scaffold potentially useful as a synthetic vascular graft, produced through the electrospinning of α,β-poly(N-2-hydroxyethyl) (2-aminoethylcarbamate)-D,L-aspartamide-graft-polylactic acid (PHEA-EDA-g-PLA) in the presence of polycaprolactone (PCL). The scaffold degradation profile has been evaluated as well as the possibility to bind heparin to electrospun fibers, being it a known anticoagulant molecule able to bind growth factors. In vitro cell compatibility has been investigated using human vascular endothelial cells (ECV 304) and the ability of heparinized PHEA-EDA-g-PLA/PCL scaffold to retain basic fibroblast growth factor has been evaluated in comparison with not heparinized sample.
Keywords:
electrospinning; graft copolymer; heparin; tissue engineering; vascular graft.
Copyright © 2013 Wiley Periodicals, Inc.
Publication types
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Research Support, Non-U.S. Gov't
MeSH terms
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Aspartame / analogs & derivatives*
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Aspartame / chemical synthesis
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Aspartame / chemistry
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Aspartame / pharmacology
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Blood Vessels / drug effects
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Blood Vessels / physiology*
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Cell Proliferation / drug effects
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Endothelial Cells / cytology
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Endothelial Cells / drug effects
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Endothelial Cells / metabolism
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Endothelial Cells / ultrastructure
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Fibroblast Growth Factor 2 / pharmacology
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Heparin / pharmacology*
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Humans
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Lactic Acid / chemical synthesis
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Lactic Acid / chemistry
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Lactic Acid / pharmacology
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Magnetic Resonance Spectroscopy
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Molecular Weight
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Polyamines / chemical synthesis
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Polyamines / chemistry
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Polyamines / pharmacology*
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Polyesters / pharmacology*
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Polymers / chemical synthesis
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Polymers / chemistry
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Polymers / pharmacology
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Regeneration / drug effects*
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Tissue Scaffolds / chemistry*
Substances
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Polyamines
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Polyesters
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Polymers
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alpha,beta-poly(N-2-hydroxyethyl)(2-aminoethylcarbamate)-d,l-aspartamide
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Fibroblast Growth Factor 2
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polycaprolactone
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Lactic Acid
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poly(lactide)
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Heparin
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Aspartame