Volume 43, Issue 3 pp. 833-848
ORIGINAL ARTICLE

Experimental investigation of esophageal reconstruction with electrospun polyurethane nanofiber and 3D printing polycaprolactone scaffolds using a rat model

Hanaro Park MD

Hanaro Park MD

Department of Otorhinolaryngology-Head & Neck Surgery, Samsung Changwon Hospital, Sungkyunkwan University School of Medicine, Changwon, South Korea

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In Gul Kim PhD

In Gul Kim PhD

Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul, South Korea

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Yanru Wu MS

Yanru Wu MS

Department of Biomedical Engineering, Inje University, Gimhae, Gyeongnam, South Korea

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Hana Cho MS

Hana Cho MS

Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul, South Korea

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Jung-Woog Shin PhD

Jung-Woog Shin PhD

Department of Biomedical Engineering, Inje University, Gimhae, Gyeongnam, South Korea

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Su A Park PhD

Su A Park PhD

Department of Nature-Inspired Nanoconvergence Systems, Korea Institute of Machinery and Materials, Daejeon, Republic of Korea

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Eun-Jae Chung MD, PhD

Corresponding Author

Eun-Jae Chung MD, PhD

Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, Seoul, South Korea

Correspondence

Eun-Jae Chung, MD, PhD, Department of Otorhinolaryngology-Head and Neck Surgery, Seoul National University Hospital, 101 Daehak-ro, Jongno-gu, Seoul 03080, South Korea.

Email: [email protected]

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First published: 26 November 2020
Citations: 20

Hanaro Park and In Gul Kim contributed equally to this work as lead authors.

Section Editor: Peirong Yu

Funding information: Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education, Grant/Award Number: 2017R1C1B2011132; Seoul National University Hospital Research Fund, Grant/Award Number: 03-2019-0320

Abstract

Background

We evaluated the outcome of esophageal reconstructions using tissue-engineered scaffolds.

Method

Partial esophageal defects were reconstructed with the following scaffolds; animals were grouped (n = 7 per group) as follows: (a) normal rats; (b) rats implanted with three-dimensional printing (3DP) polycaprolactone (PCL) scaffolds; (c) with human adipose-derived mesenchymal stem cell (ADSC)-seeded 3DP PCL scaffolds; (d) with polyurethane (PU)-nanofiber(Nf) scaffolds; and (e) with ADSC-seeded PU-Nf scaffolds.

Results

The esophageal defects were successfully repaired; however, muscle regeneration was greater in the 3DP PCL + ADSC groups than in the PU-Nf + ADSC groups (P < .001). Regeneration of the epithelium was greater in PU-Nf and PU-Nf + ADSC groups than in the 3DP PCL and 3DP PCL + ADSC groups (P < .001).

Conclusion

A tendency for more re-epithelization was observed with the PU-Nf scaffolds, while more muscle regeneration was achieved with the 3DP PCL scaffolds.

DATA AVAILABILITY STATEMENT

The data that support the findings of this study are available from the corresponding author, Eun-Jae Chung, upon reasonable request.

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