Abstract
Adipose-derived stem cells (ASCs) are a reliable and easily accessible source of adult stem cells. Thus, ASCs are increasingly used as seed cells in tissue engineering. This report investigated the possibility of engineering a large vessel using unwoven polyglycolic acid (PGA) fibers covered with ASC sheets treated with transforming growth factor-β1 (TGF-β1) and platelet-derived growth factor-BB (PDGF-BB). After coiling around a silicone tube, the complex was secured by surgical sutures and cultured In Vitro for six weeks. Gross views showed that glossy and smooth tubular tissue was engineered. Histological examination revealed regularly distributed cells and a few collagenous and elastic fibers in the differentiated group. Cells were randomly distributed, and disorganized collagenous and small elastic fibers were detected in the control group. Our results indicate the promising potential of ASC sheets and PGA fibers for the construction of large vessel walls.
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