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Tissue-Engineered Esophagus via Bioreactor Cultivation for Circumferential Esophageal Reconstruction.

IMPACT STATEMENT
In vivo functional esophageal reconstruction remains challenging due to anastomosis site leakage and necrosis of the implanted scaffold in a circumferential esophageal defect. Therefore, it is necessary to develop a tissue-engineered esophagus that enables regeneration of esophageal mucosa and muscle without leakage of the esophageal anastomosis. In this study, we proposed an intriguing strategy that combines a mesenchymal stem cell-seeded tubular scaffold with a bioreactor system for esophageal reconstruction and introduced a new surgical anastomosis technique with the thyroid gland flap over the implanted scaffold to improve graft survival. We believe that this system should be a powerful platform for circumferential replacement of the esophagus in a rat model.