Identification of novel therapeutic targets by elucidating the pathogenesis of murine allergic march models
Project/Area Number |
17K10007
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Research Category |
Grant-in-Aid for Scientific Research (C)
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Allocation Type | Multi-year Fund |
Section | 一般 |
Research Field |
Collagenous pathology/Allergology
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Research Institution | Juntendo University |
Principal Investigator |
Kamijo Seiji 順天堂大学, 医学(系)研究科(研究院), 助教 (00445470)
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Project Period (FY) |
2017-04-01 – 2021-03-31
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Project Status |
Completed (Fiscal Year 2020)
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Budget Amount *help |
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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Keywords | アレルギーマーチ / プロテアーゼアレルゲン / 経皮免疫寛容 / 経皮アレルゲン感作 / マウスモデル / アレルギー / アレルゲン免疫療法 / アレルゲン / アレルギー性皮膚炎症 / アレルギー性気道炎症 / アレルギー学 |
Outline of Final Research Achievements |
"Allergic march" refers to the natural history of allergic diseases, in which sensitization develops to more and more allergens, and the symptoms develops to more and more organs. In the present study, we used a papaya-derived allergen, papain, as a model allergen to induce murine models of the allergic march. Analyzing the murine allergic march models, we found that oral administration of cyclooxygenase inhibitor aggravates the allergic airway inflammation in the papain-induced allergic march model mice. We also found that papain-exposed skin tissue produces larger amount of sST2 (a soluble decoy receptor of IL-33) than papain-exposed lung tissue. Our results suggested that while allergy-inducing function of IL-33 is suppressed by the large amount of sST2, innate immune cell-derived IL-17A contributes to the allergen sensitization in the papain-exposed skin tissue.
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Academic Significance and Societal Importance of the Research Achievements |
「アレルギーマーチ」とは、時間の経過とともに次第に複数の器官にアレルギー症状が現れ、複数のアレルゲンにアレルギー応答を示すようになってゆくことを表す語である。「アレルギーマーチ」における最初のアレルゲン感作には皮膚のアレルゲン曝露が重要であることが提唱されている。本研究の成果は経皮アレルゲン感作の予防に皮膚バリアの維持が重要であることを示すとともに、アレルゲン曝露を受けた皮膚でのサイトカイン応答の詳細を明らかにした。また本研究の成果により、シクロオキシゲナーゼ阻害剤が気道のアレルギーを悪化させる事や、プロテアーゼ阻害剤処理アレルゲンを用いた経皮免疫寛容の誘導がより安全性が高いことが示された。
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Report
(5 results)
Research Products
(10 results)
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[Journal Article] Epicutaneous vaccination with protease inhibitor-treated papain prevents papain-induced Th2-mediated airway inflammation without inducing Th17 in mice2021
Author(s)
Kunimine S, Takai T, Kamijo S, Maruyama N, Kimitsu T, Masutani Y, Yoshimura T, Suchiva P, Shimizu S, Ogawa H, Okumura K, Ikeda S
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Journal Title
Biochem Biophys Res Commun
Volume: 546
Pages: 192-199
DOI
Related Report
Peer Reviewed
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[Journal Article] Airway inflammation after epicutaneous sensitization of mice requires protease activity of low-dose allergen inhalation.2018
Author(s)
Nishioka I, Takai T, Maruyama N, Kamijo S, Suchiva P, Suzuki M, Kunimine S, Ochi H, Shimura S, Sudo K, Ogawa H, Okumura K, Ikeda S.
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Journal Title
J Allergy Clin Immunol
Volume: 印刷中
Issue: 6
Pages: 2271-2273
DOI
Related Report
Peer Reviewed
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[Journal Article] Skin treatment with detergent promotes protease allergen-dependent epicutaneous sensitization in a manner different from tape stripping in mice2017
Author(s)
Ochi H, Takai T, Shimura S, Maruyama N, Nishioka I, Kamijo S, Iida H, Nakae S, Ogawa H, Okumura K, Ikeda S
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Journal Title
J Invest Dermatol
Volume: 掲載確定
Issue: 7
Pages: 1578-1582
DOI
Related Report
Peer Reviewed / Acknowledgement Compliant
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