Affiliation:
1. Department of Plastic and Reconstructive Surgery Department of Cardiology Shanghai Key Lab of Tissue Engineering Shanghai 9th People's Hospital Shanghai Jiao Tong University School of Medicine Shanghai 200011 P. R. China
2. College of Textiles State Key Laboratory for Modification of Chemical Fibers and Polymer Materials Donghua University Shanghai 201620 P. R. China
Abstract
AbstractFunctional segmental trachea reconstruction is a critical concern in thoracic surgery, and tissue‐engineered trachea (TET) holds promise as a potential solution. However, current TET falls short in fully restoring physiological function due to the lack of the intricate multi‐tissue structure found in natural trachea. In this research, a multi‐tissue integrated tissue‐engineered trachea (MI‐TET) is successfully developed by orderly assembling various cells (chondrocytes, fibroblasts and epithelial cells) on 3D‐printed PGS bioelastomer scaffolds. The MI‐TET closely resembles the complex structures of natural trachea and achieves the integrated regeneration of four essential tracheal components: C‐shaped cartilage ring, O‐shaped vascularized fiber ring, axial fiber bundle, and airway epithelium. Overall, the MI‐TET demonstrates highly similar multi‐tissue structures and physiological functions to natural trachea, showing promise for future clinical advancements in functional TETs.
Funder
National Key Research and Development Program of China
National Natural Science Foundation of China