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Cited 12 time in webofscience Cited 14 time in scopus
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Improved chondrogenic performance with protective tracheal design of Chitosan membrane surrounding 3D-printed trachea SCIE SCOPUS

Title
Improved chondrogenic performance with protective tracheal design of Chitosan membrane surrounding 3D-printed trachea
Authors
Kim, HyeonjiLee, Jae YeonHan, HyeonseokCho, Won-WooHan, HohyeonChoi, AndrewHong, HyeonjunKim, Jae YunPark, Jeong HunPark, Sun HwaKim, Sung WonKim, Dong SungCho, Dong-Woo
Date Issued
2021-04
Publisher
NATURE RESEARCH
Abstract
In recent tracheal tissue engineering, limitations in cartilage reconstruction, caused by immature delivery of chondrocyte-laden components, have been reported beyond the complete epithelialization and integration of the tracheal substitutes with the host tissue. In an attempt to overcome such limitations, this article introduces a protective design of tissue-engineered trachea (TraCHIM) composed of a chitosan-based nanofiber membrane (CHIM) and a 3D-printed biotracheal construct. The CHIM was created from chitosan and polycaprolactone (PCL) using an electrospinning process. Upon addition of chitosan to PCL, the diameter of electrospun fibers became thinner, allowing them to be stacked more closely, thereby improving its mechanical properties. Chitosan also enhances the hydrophilicity of the membranes, preventing them from slipping and delaminating over the cell-laden bioink of the biotracheal graft, as well as protecting the construct. Two weeks after implantation in Sprague-Dawley male rats, the group with the TraCHIM exhibited a higher number of chondrocytes, with enhanced chondrogenic performance, than the control group without the membrane. This study successfully demonstrates enhanced chondrogenic performance of TraCHIM in vivo. The protective design of TraCHIM opens a new avenue in engineered tissue research, which requires faster tissue formation from 3D biodegradable materials, to achieve complete replacement of diseased tissue.
URI
https://oasis.postech.ac.kr/handle/2014.oak/107728
DOI
10.1038/s41598-021-88830-3
ISSN
2045-2322
Article Type
Article
Citation
SCIENTIFIC REPORTS, vol. 11, no. 1, 2021-04
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조동우CHO, DONG WOO
Dept of Mechanical Enginrg
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