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

Elucidation of the effects of surfactants in environmental dust on the development of allergic diseases

Research Project

Project/Area Number 20H01622
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 08030:Family and consumer sciences, and culture and living-related
Research InstitutionNational Center for Child Health and Development

Principal Investigator

Morita Hideaki  国立研究開発法人国立成育医療研究センター, 免疫アレルギー・感染研究部, 室長 (90365320)

Co-Investigator(Kenkyū-buntansha) 大矢 幸弘  国立研究開発法人国立成育医療研究センター, アレルギーセンター, センター長 (80392512)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2022: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2021: ¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2020: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Keywords界面活性剤 / 気管支喘息 / 環境塵 / アレルギー / 埃
Outline of Research at the Start

疫学研究から衛生的な環境になったことがアレルギー疾患数の増加に繋がっている可能性が示唆されているが、そのメカニズムは不明な点が多い。衛生的な環境を作り出す契機一つとして合成洗剤の一般家庭への普及が挙げられるが、興味深いことに、アレルギー疾患の有病率の増加はこの合成洗剤が爆発的に普及した時期と一致している。そこで本研究では、環境塵中に界面活性剤が高濃度に存在する場所の特定、アレルギー性炎症惹起につながる界面活性剤の種類の同定、コホート研究を用いた環境塵中の界面活性剤の濃度とアレルギー疾患発症の関連性の検証を通じて、環境塵中の界面活性剤のアレルギー疾患発症への関与の詳細を明らかにすることを目指す。

Outline of Final Research Achievements

We found that asthma-like eosinophilic airway inflammation was induced by inhalation of laundry detergents in mice. In addition, among the ingredients contained in synthetic detergents, surfactants were involved in the induction of eosinophilic airway inflammation. Laundry detergents induced IL-33 expression in airway epithelial cells, and IL-33 activated type 2 innate lymphocytes (ILC2) to produce type 2 cytokines, resulting in eosinophilic airway inflammation. Furthermore, in order to investigate the presence of surfactants in the living environment, fine dust was collected from various places in the house and the activity of surfactants in the dust was measured. As a result, we found that a certain degree of surfactant activity was detected from all the fine dust collected.

Academic Significance and Societal Importance of the Research Achievements

近代化に伴いアレルギー疾患の患者数が増加した理由として、衛生的な環境となったことにより幼少期に微生物への曝露が減少したことが原因とする衛生仮説が広く知られている。一方で近年、人間の体が外界と接する部分に存在する細胞(上皮細胞)のバリア機能が、外的/内的要因を含む何かしらの要因で障害されることがアレルギー疾患の発症につながるという「上皮バリア仮説」が提唱されている。本研究は、環境中に存在する合成洗剤を始めとする界面活性剤が、上皮細胞の破壊を介して喘息様気道炎症を誘導することを世界で初めて明らかにした研究であり、この上皮バリア仮説を裏付ける結果となり、非常に大きな学術的、社会的意義を有している。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (11 results)

All 2023 2022 2021 Other

All Int'l Joint Research (2 results) Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (4 results) (of which Int'l Joint Research: 2 results,  Invited: 4 results) Remarks (1 results)

  • [Int'l Joint Research] SIAF, University of Zurich(スイス)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] SIAF, University of Zurich(スイス)

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Laundry detergents and surfactants induced eosinophilic airway inflammation by increasing IL-33 expression and activating ILC2s2023

    • Author(s)
      Saito K, Orimo K, Kubo T, Tamari M, Yamada A, Motomura K, Sugiyama H, Matsuoka R, Nagano N, Hayashi Y, Arae K, Hara M, Ikutani M, Fukuie T, Sudo K, Matsuda A, Ohya Y, Fujieda S, Saito H, Nakae S, Matsumoto K, Akdis CA, Morita H.
    • Journal Title

      Allergy

      Volume: - Issue: 7 Pages: 1878-1892

    • DOI

      10.1111/all.15762

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Immune checkpoint molecules on ILC2s as potential therapeutic targets for allergic diseases2022

    • Author(s)
      Hideaki Morita, Hirohisa Saito, Kenji Matsumoto
    • Journal Title

      Journal of Allergy and Clinical Immunology

      Volume: 149 Issue: 1 Pages: 60-62

    • DOI

      10.1016/j.jaci.2021.10.021

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Allergic Rhinitis: What Do We Know About Allergen-Specific Immunotherapy?2021

    • Author(s)
      Tadech Boonpiyathad, Mongkol Lao-Araya, Chirawat Chiewchalermsri, Sasipa Sangkanjanavanich, Hideaki Morita
    • Journal Title

      Frontier Allergy

      Volume: -

    • DOI

      10.3389/falgy.2021.747323

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Characteristics of tissue-resident ILCs and their potential as therapeutic targets in mucosal and skin inflammatory diseases2021

    • Author(s)
      Keisuke Orimo, Masato Tamari, Hirohisa Saito, Kenji Matsumoto, Susumu Nakae, Hideaki Morita
    • Journal Title

      Allergy

      Volume: - Issue: 11 Pages: 3332-3348

    • DOI

      10.1111/all.14863

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] Environmental factors trigger allergic inflammation through disruption/activation of epithelial cells2022

    • Author(s)
      Hideaki Morita, Kenji Matsumoto
    • Organizer
      The 51st Annual Meeting of The Japanese Society of Immunology
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Role of innate immunity in allergic diseases2022

    • Author(s)
      Hideaki Morita
    • Organizer
      Asia Pacific Academy of Pediatric Allergy, Respirology&Immunology 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Inhaled laundry detergents induce eosinophilic airway inflammation through IL-33 and ILC2 activation2022

    • Author(s)
      Hideaki Morita
    • Organizer
      EAACI Summer Symposium on Epithelial Barriers and Microbiome
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 乳児期の免疫機構とアレルギー疾患発症予防戦略2021

    • Author(s)
      森田英明、斎藤博久、松本健治
    • Organizer
      第70回日本アレルギー学会学術大会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Remarks] プレスリリース 洗剤に含まれる界面活性剤が喘息様気道炎症を誘導するメカニズムを解明

    • URL

      https://www.ncchd.go.jp/press/2023/0516.html

    • Related Report
      2022 Annual Research Report

URL: 

Published: 2020-04-28   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi