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RETRACTED ARTICLE: Small Diameter Blood Vessels Bioengineered From Human Adipose-derived Stem Cells
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RETRACTED ARTICLE: Small Diameter Blood Vessels Bioengineered From Human Adipose-derived Stem Cells
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Journal Article
RETRACTED ARTICLE: Small Diameter Blood Vessels Bioengineered From Human Adipose-derived Stem Cells
2016
Overview
Bioengineering of small-diameter blood vessels offers a promising approach to reduce the morbidity associated with coronary artery and peripheral vascular disease. The aim of this study was to construct a two-layered small-diameter blood vessel using smooth muscle cells (SMCs) and endothelial cells (ECs) differentiated from human adipose-derived stem cells (hASCs). The outer layer was constructed with biodegradable polycaprolactone (PCL)-gelatin mesh seeded with SMCs, and this complex was then rolled around a silicone tube under pulsatile stimulation. After incubation for 6 to 8 weeks, the PCL-gelatin degraded and the luminal supporting silicone tube was removed. The smooth muscle layer was subsequently lined with ECs differentiated from hASCs after stimulation with VEGF and BMP4 in combination hypoxia. The phenotype of differentiated SMCs and ECs, and the cytotoxicity of the scaffold and biomechanical assessment were analyzed. Our results demonstrated that the two-layered bioengineered vessels exhibited biomechanical properties similar to normal human saphenous veins (HSV). Therefore, hASCs provide SMCs and ECs for bioengineering of small-diameter blood vessels.
Publisher
Nature Publishing Group UK,Nature Publishing Group
Subject
