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Takagi Ryo
Department Research Institutes and Facilities, Research Institutes and Facilities Position Assistant Professor |
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| Article types | Original article |
| Language | English |
| Peer review | Peer reviewed |
| Title | Development of a nasal mucosa-removal model for evaluating cell therapy. |
| Journal | Formal name：Regenerative therapy Abbreviation：Regen Ther ISSN code：23523204/23523204 |
| Domestic / Foregin | Foregin |
| Volume, Issue, Page | 16,pp.32-41 |
| Author and coauthor | KIKUCHI Shun†, MORINO Tsunetaro, TAKAGI Ryo, NOBUYOSHI Otori, KOJIMA Hiromi, YAMATO Masayuki* |
| Publication date | 2021/03 |
| Summary | Introduction:Endoscopic sinus surgery is an effective surgical procedure for treating chronic sinusitis; however, extensive exposure of the bone in the nasal cavity can result in permanent disability postoperatively. Particularly, closure of the sinus drainage pathway due to bone hyperplasia associated with bone exposure can trigger the recurrence of sinusitis. It is essential to regenerate the nasal mucosa after surgery to avoid bone hyperplasia. Regenerative medicine, including cell therapy, could be one of the leading options for nasal mucosa regeneration. To date, there is a lack of effective models for evaluating treatments for prevention of bone hyperplasia that occurs after sinus surgery. The purpose of this study was to develop a model of nasal mucosal removal to evaluate cellular therapies.Methods:The model was created in rabbits, a species with a wide nasal structure, and was generated by approaching the maxillary sinus from the nasal bone side and solely removing the maxillary sinus mucosa without destroying the structures in the nasal cavity. Adipose-derived mesenchymal stromal cell sheets prepared in temperature-responsive cell culture dishes were examined for the effect of transplantation in the animal model. Intranasal evaluation was assessed by micro-computed tomography and tissue staining.Results:Significant bone hyperplasia in the maxillary sinus occurred on the side of mucosal removal, and no bone hyperplasia occurred in the control sham side in the same rabbits on postoperative day 28. Bone hyperplasia was observed over a short time period, with the presence of bone hyperplasia in the maxillary sinus on day 14 and calcification of the bone on day 28. The adipose-derived mesenchymal stromal cell (ADSC) sheet was transplantable in a nasal mucosa-removal model. No significant differences in bone hyperplasia were found between the transplantation side and the sham side in terms of the effect of transplantation of the ADSC sheet; however, bone hyperpl |
| DOI | 10.1016/j.reth.2020.12.004 |
| PMID | 33490320 |