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Author
Gion, Yuka Division of Pathophysiology, Okayama University Graduate School of Health Sciences
Okano, Mitsuhiro Department of Otolaryngology of Head and Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
Koyama, Takahisa Department of Otolaryngology of Head and Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
Oura, Tokie Division of Pathophysiology, Okayama University Graduate School of Health Sciences
Nishikori, Asami Division of Pathophysiology, Okayama University Graduate School of Health Sciences
Orita, Yorihisa Department of Otolaryngology, Head and Neck Surgery, Kumamoto University Graduate School
Tachibana, Tomoyasu Department of Otolaryngology, Japanese Red Cross Society Himeji Hospital
Marunaka, Hidenori Department of Otolaryngology of Head and Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences
Makino, Takuma Department of Otolaryngology of Head and Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences ORCID Kaken ID researchmap
Nishizaki, Kazunori Department of Otolaryngology of Head and Neck Surgery, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences Kaken ID publons researchmap
Sato, Yasuharu Division of Pathophysiology, Okayama University Graduate School of Health Sciences ORCID Kaken ID researchmap
Abstract
Cross-linking of antigen-specific IgE bound to the high-affinity IgE receptor (Fc epsilon RI) on the surface of mast cells with multivalent antigens results in the release of mediators and development of type 2 inflammation. Fc epsilon RI expression and IgE synthesis are, therefore, critical for type 2 inflammatory disease development. In an attempt to clarify the relationship between eosinophilic chronic rhinosinusitis (ECRS) and mast cell infiltration, we analyzed mast cell infiltration at lesion sites and determined its clinical significance. Mast cells are positive for c-kit, and IgE in uncinated tissues (UT) and nasal polyps (NP) were examined by immunohistochemistry. The number of positive cells and clinicopathological factors were analyzed. Patients with ECRS exhibited high levels of total IgE serum levels and elevated peripheral blood eosinophil ratios. As a result, the number of mast cells with membranes positive for c-kit and IgE increased significantly in lesions forming NP. Therefore, we classified IgE-positive mast cells into two groups: membrane IgE-positive cells and cytoplasmic IgE-positive cells. The amount of membrane IgE-positive mast cells was significantly increased in moderate ECRS. A positive correlation was found between the membrane IgE-positive cells and the radiological severity score, the ratio of eosinophils, and the total serum IgE level. The number of cytoplasmic IgE-positive mast cells was significantly increased in moderate and severe ECRS. A positive correlation was observed between the cytoplasmic IgE-positive cells and the radiological severity score, the ratio of eosinophils in the blood, and the total IgE level. These results suggest that the process of mast cell internalization of antigens via the IgE receptor is involved in ECRS pathogenesis.
Keywords
mast cell
eosinophilic chronic rhinosinusitis
c-kit
IgE
Published Date
2020-03-07
Publication Title
International Journal of Molecular Sciences
Volume
volume21
Issue
issue5
Publisher
MDPI
Start Page
1843
ISSN
1422-0067
Content Type
Journal Article
language
英語
OAI-PMH Set
岡山大学
Copyright Holders
© 2020 by the authors.
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publisher
PubMed ID
DOI
Web of Science KeyUT
Related Url
isVersionOf https://doi.org/10.3390/ijms21051843
License
http://creativecommons.org/licenses/by/4.0/
Funder Name
Japan Society for the Promotion of Science
助成番号
19K16586