Transplantation of multiciliated airway cells derived from human iPS cells using an artificial tracheal patch into rat trachea

Hideaki Okuyama, Hiroe Ohnishi, Ryosuke Nakamura, Masaru Yamashita, Yo Kishimoto, Ichiro Tateya, Atsushi Suehiro, Shimpei Gotoh, Toshiaki Takezawa, Tatsuo Nakamura, Koichi Omori

Research output: Contribution to journalArticlepeer-review

5 Citations (Scopus)

Abstract

Tracheal resection is often performed for malignant tumours, congenital anomalies, inflammatory lesions, and traumatic injuries. There is no consensus on the best approach for the restoration of tracheal functionality in patients with tracheal defects. Artificial grafts made of polypropylene and collagen sponge have been clinically used by our group. However, 2 months are required to achieve adequate epithelialization of the grafts in humans. This study aimed to investigate the feasibility of transplantation therapy using an artificial trachea with human-induced pluripotent stem cell (hiPSC)-derived multiciliated airway cells (hiPSC-MCACs). Collagen vitrigel membrane, a biocompatible and absorbable material, was used as a scaffold to cover the artificial trachea with hiPSC-MCACs. Analyses of hiPSC-MCACs on collagen vitrigel membrane were performed by immunocytochemistry and electron microscopy and by assessing ciliary beat frequency. Along with the artificial trachea, hiPSC-MCACs were transplanted into surgically created tracheal defects of immunodeficient rats. The survival of transplanted cells was histologically evaluated at 1 and 2 weeks after the transplantation. The hiPSC-MCACs exhibited motile cilia on collagen vitrigel membrane. The surviving hiPSC-MCACs were observed in the endotracheal epithelium of the tracheal defect at 1 and 2 weeks after transplantation. These results suggest that hiPSC-MCAC is a useful candidate for tracheal reconstruction.

Original languageEnglish
Pages (from-to)1019-1030
Number of pages12
JournalJournal of Tissue Engineering and Regenerative Medicine
Volume13
Issue number6
DOIs
Publication statusPublished - 06-2019
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Medicine (miscellaneous)
  • Biomaterials
  • Biomedical Engineering

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