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Both sides nanopatterned tubular collagen scaffolds as tissue-engineered vascular grafts
Date
2010-12-01
Author
Zorlutuna, P.
Vadgama, P.
Hasırcı, Vasıf Nejat
Metadata
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Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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Two major requirements for a tissue-engineered vessel are the establishment of a continuous endothelium and adequate mechanical properties. In this study, a novel tubular collagen scaffold possessing nanopatterns in the form of channels (with a 650 nm periodicity) on both sides was designed and examined after seeding and co-culturing with vascular cells. Initially, the exterior of the tube was seeded with human vascular smooth muscle cells (VSMCs), cultured for 14 days, and then human internal thoracic artery endothelial cells (HITAECs) were seeded on the inside of the tube and cultured for a further week. Microscopy revealed that nano-scale patterns could be reproduced on collagen with high fidelity and preserved during incubation in vitro. The VSMCs were circumferentially orientated with the help of these nanopatterns and formed multilayers on the exterior, while HITAECs formed a continuous layer on the interior, as is the case in natural vessels. Both cell types were observed to proliferate and retain their phenotypes in the co-culture. Copyright (C) 2010 John Wiley & Sons, Ltd.
Subject Keywords
Vascular tissue engineering
,
Nanopattern
,
Collagen
,
Vascular smooth muscle cells
,
Endothelial cells
URI
https://hdl.handle.net/11511/30217
Journal
JOURNAL OF TISSUE ENGINEERING AND REGENERATIVE MEDICINE
DOI
https://doi.org/10.1002/term.278
Collections
Graduate School of Natural and Applied Sciences, Article
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P. Zorlutuna, P. Vadgama, and V. N. Hasırcı, “Both sides nanopatterned tubular collagen scaffolds as tissue-engineered vascular grafts,”
JOURNAL OF TISSUE ENGINEERING AND REGENERATIVE MEDICINE
, pp. 628–637, 2010, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/30217.