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Updated: Jul 17, 2026
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Tissue-Engineered Graft for Circumferential Esophageal Reconstruction in Rats
Published on: February 10, 2020
[Experimental studies on tissue engineered esophagus reconstructed with artificial biodegradable scaffold]
Chunrong Bao1, Fangbao Ding, Ju Mei
1Department of Cardiothoracic Surgery, Changhai Hospital, Second Military Medical University, Shanghai, 200433, PR China. docbao@126.com
Summary
Poly (lactic-co-glycolic acid) scaffolds support canine esophageal epithelial cell growth, showing potential for tissue engineering an artificial esophagus. This study verifies cell adhesion and proliferation on these biodegradable scaffolds.
Area of Science:
- Biomaterials Science
- Regenerative Medicine
- Veterinary Surgery
Background:
- Tissue engineering offers promising solutions for organ reconstruction.
- Biodegradable polymer scaffolds are crucial for developing artificial organs.
- Canine esophageal reconstruction presents unique challenges in veterinary medicine.
Purpose of the Study:
- To evaluate the adhesion and growth of canine esophageal epithelial cells (EECs) on poly (lactic-co-glycolic acid) (PLGA) scaffolds.
- To assess the potential of PLGA scaffolds for canine tissue engineering applications.
- To reconstruct a canine esophagus using tissue engineering principles.
Main Methods:
- Canine EECs were isolated and cultured in vitro.
- EECs were seeded onto collagen type IV-precoated PLGA scaffolds.
- Cell-scaffold constructs were cultured both in vitro and in vivo within dogs for 4 weeks.
Main Results:
- Canine EECs exhibited characteristic cobblestone morphology and cytokeratin positivity.
- EECs demonstrated good distribution and adhesion to the PLGA scaffolds.
- In vivo culture for 4 weeks resulted in cell-seeded scaffolds resembling native esophageal tissue.
Conclusions:
- PLGA scaffolds precoated with collagen type IV are suitable for canine EEC adhesion and proliferation.
- These scaffolds serve as effective carriers for artificial esophagus tissue engineering.
- The findings support the use of PLGA in developing engineered esophageal replacements.
