• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Oxygen-mediated mast cell activation in oxygen-induced anaphylaxis

Research Project

Project/Area Number 19K15977
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 42020:Veterinary medical science-related
Research InstitutionUniversity of Tsukuba (2020)
Tokyo University of Agriculture and Technology (2019)

Principal Investigator

Matsuda Kenshiro  筑波大学, 革新的創薬開発研究センター, 研究員 (70642619)

Project Period (FY) 2019-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2019: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywordsアナフィラキシー / マスト細胞 / TRPA1 / 酸素 / 相対的低酸素 / TRPA1チャネル / アナフィラキシー反応
Outline of Research at the Start

アナフィラキシーは、アレルゲン侵入の他、運動や温度もトリガーとなる全身性アレルギーで、マスト細胞が主要な役割を担う。特に免疫学的機序を介さないマスト細胞の活性化によるアナフィラキシーは原因が不明瞭である。相対的低酸素刺激が非免疫学的機序に基づくアナフィラキシーのエフェクターであり、急性高山病や呼吸器系疾患における純酸素療法はアナフィラキシーを誘導し得る。そこで相対的低酸素による生体内物理化学的変化がマスト細胞を活性化させるプロセスを明確化し、高山病などの酸素起因性疾患の新たな病勢増悪化機構を解明することで、酸素起因性アナフィラキシーに対し新規視点に基づく治療法開発の基礎的知見の獲得を目指す。

Outline of Final Research Achievements

Rapid shift of chronic hyperoxia to normoxia (relative hypoxia) induced systemic anaphylaxis in adult mice, however, anaphylactic response was inhibited in mast cell-deficient mice after relative hypoxic stimulation. Moreover, plasma histamine, tryptase, and beta-hexosaminidase release were also reduced in mast cell-deficient mice. These findings demonstrated that mast cell was the main regulator of oxygen-induced anaphylaxis.
To investigate how mast cell regulate oxygen-induced anaphylaxis, bone marrow-cultured mast cell (BMMC) was stimulated by relative hypoxia. After relative hypoxic stimulation, histamine, tryptase, and beta-hexosaminidase release were reduced in TRPA1-deficient BMMC as compared with wild type BMMC.
These results suggested that mast cell is the main mediator of oxygen-induced anaphylaxis, and TRPA1 regulate mast cell activation through relative hypoxic stimulation.

Academic Significance and Societal Importance of the Research Achievements

アナフィラキシーは、食物、医薬品や昆虫刺咬などのアレルゲン侵入の他、運動や温度などもトリガーとなる全身性アレルギー反応で、特に免疫学的機序を介さない、直接的にマスト細胞を活性化させるアナフィラキシーはその原因の特定が急務であった。本研究では、相対的低酸素刺激による非免疫学的機序に基づく新たなマスト細胞の活性化メカニズムを明らかにし、酸素が新たなアナフィラキシーの誘導因子である事を見出した。この事から相対的低酸素状況が想定される純酸素療法や急性高山病などの酸素起因性疾患は、アナフィラキシーを惹起するリスクがあり、その予防方法や治療方法提言のための基礎的知見として学術的意義を有する。

Report

(3 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • Research Products

    (3 results)

All 2021 2019

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (2 results)

  • [Journal Article] A rapid shift from chronic hyperoxia to normoxia induces systemic anaphylaxis via Transient Receptor Potential Ankyrin 1 channels on mast cells.2021

    • Author(s)
      Matsuda K, Arkwright PD, Mori Y, Oikawa MA, Muko R, Tanaka A , Matsuda, H.
    • Journal Title

      J. Immunol.

      Volume: 205 Issue: 11 Pages: 2959-2959

    • DOI

      10.4049/jimmunol.2000149

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 未熟児網膜症モデルマウスにおけるトリプターゼを介した網膜異常血管のリモデリング2019

    • Author(s)
      松田研史郎、田中あかね、松田浩珍
    • Organizer
      Tokyo Biomarker Innovation Research Association Forum
    • Related Report
      2019 Research-status Report
  • [Presentation] Mouse mast cell protease-6 induced aberrent vascular remodeling via monocyte chemotactic protein-1 in oxygen-induced retinopathy2019

    • Author(s)
      Kenshiro Matsuda, Kaoru Karasawa, Peter D Arkwright, Masatoshi Kondo, Akane Tanaka, Hiroshi Matsuda
    • Organizer
      European Academy of Allergy and Clinical Immunology Congress
    • Related Report
      2019 Research-status Report

URL: 

Published: 2019-04-18   Modified: 2022-01-27  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi