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

Regulation of type-2 immune cells in chronic allergic airway inflammation.

Research Project

Project/Area Number 20K08786
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 54020:Connective tissue disease and allergy-related
Research InstitutionHyogo Medical University

Principal Investigator

Matsushita Kazufumi  兵庫医科大学, 医学部, 講師 (20581549)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords慢性アレルギー / 気道炎症 / Th2 / ILC2 / IgE / アレルギー性気道炎症 / 好酸球 / IL-33 / 慢性気道炎症 / アレルギー / 肥満細胞 / 2型自然リンパ球 / Th2細胞
Outline of Research at the Start

長期間抗原に曝露されることによって起こる慢性アレルギー性気道炎症では、自然免疫と獲得免疫の活性化が複雑に関与することで非常に治療が困難な病態を作り上げている。免疫調節分子Regnase-1はRNAの安定性を制御することにより、様々な細胞種の活性化を制御する分子である。本研究ではこのRegnase-1の分解制御に着目することにより、慢性アレルギー疾患に関わる様々な細胞種(2型自然リンパ球、Th2細胞、肥満細胞など)の活性化を制御する方法を検討する。本研究はRegnase-1の分解制御をコントロールすることで慢性アレルギー性気道炎症を抑制することを目標とする。

Outline of Final Research Achievements

Allergic airway inflammation caused by chronic exposure to allergens persists long after ceasing the allergen exposure. Here, we examined if regulating the degradation of Regnase-1, an immune-regulatory RNase, could ameliorate symptoms of chronic allergic airway inflammation. Compared with wild-type mice, Regnase-1 AA mice, a mouse strain expressing S435A/S439A mutant Regnase-1 resistant to IKK-mediated degradation, showed reduced airway eosinophilia and systemic IgE/IgG1 production in response to chronic exposure to multiple allergens. In addition, after ceasing the allergen exposure, goblet cells disappeared more quickly in the lungs in Regnase-1 AA mice compared with wild-type controls. Furthermore, although lung IL-5/IL-13-producing ILC2 and Th2 cells increased after ceasing allergen exposure, Regnase-1 AA mice showed a milder phenotype. These results suggest that regulating Regnase-1 degradation could facilitate recovery from chronic allergic airway inflammation.

Academic Significance and Societal Importance of the Research Achievements

気道へのアレルゲンの長期曝露により、内因性の炎症性サイトカインの産生→2型免疫細胞の活性化による負のスパイラルが形成され、炎症の悪化、症状の持続へとつながるものと考えられる。IKK依存的なRegnase-1の分解を抑制することにより、IL-33誘導性の2型自然リンパ球(ILC2)やTh2細胞の活性化が抑制されることにより、これらの負のスパイラルを停止し、炎症の抑制、回復の促進へとつながるものと考えられる。本研究により、Regnase-1の分解を抑制することで慢性アレルギー性気道炎症の発症を抑制、または発症後の回復を促進しうる可能性が示された。

Report

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

    (15 results)

All 2022 2021

All Journal Article (6 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (9 results)

  • [Journal Article] Dynamin Related Protein 1 differentially regulates FcεRI- and SP-induced mast cell activation.2022

    • Author(s)
      Wang Y*, Yu M*, Matsushita K* (*equal contribution), Liu C, Ishihara N, Nomura M, Tsai M, Galli SJ.
    • Journal Title

      Journal of Allergy and Clinical Immunology.

      Volume: 150 Issue: 5 Pages: 1228-1231

    • DOI

      10.1016/j.jaci.2022.04.028

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] IL-33とアレルギー性鼻炎2022

    • Author(s)
      松下一史
    • Journal Title

      Allos ergon

      Volume: 2 Pages: 373-380

    • Related Report
      2021 Research-status Report
  • [Journal Article] The role of Sp140 revealed in IgE and mast cell responses in collaborative cross mice.2021

    • Author(s)
      Matsushita K, Li X, Nakamura Y, Dong D, Mukai K, Tsai M, Montgomery SB, Galli SJ.
    • Journal Title

      JCI insight

      Volume: 6 Issue: 12

    • DOI

      10.1172/jci.insight.146572

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Thymic stromal lymphopoietin contributes to protection of mice from Strongyloides venezuelensis infection by CD4+ T cell-dependent and -independent pathways2021

    • Author(s)
      Koida Atsuhide、Yasuda Koubun、Adachi Takumi、Matsushita Kazufumi、Yasuda Makoto、Hirano Shigeru、Kuroda Etsushi
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 555 Pages: 168-174

    • DOI

      10.1016/j.bbrc.2021.03.128

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 粘膜上皮細胞バリアーとアレルギー性鼻炎2021

    • Author(s)
      松下一史、福岡あゆみ、黒田悦史
    • Journal Title

      臨床免疫・アレルギー科

      Volume: 76 Pages: 656-662

    • Related Report
      2021 Research-status Report
  • [Journal Article] Transcriptome programing of IL-3-dependent bone marrow-derived cultured mast cells by stem cell factor (SCF).2021

    • Author(s)
      Wang Y*, Matsushita K*, Jackson J, Numata T, Zhang Y, Zhou G, Tsai M, Galli SJ. (*equal contribution)
    • Journal Title

      Allergy

      Volume: - Issue: 7 Pages: 2288-2291

    • DOI

      10.1111/all.14808

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] The role of local Th2 activation in the development of allergic rhinitis.2022

    • Author(s)
      Tezuka S, Matsushita K, Kuroda E.
    • Organizer
      第51回日本免疫学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Mode of action analysis of IL-33 as a mucosal adjuvant.2022

    • Author(s)
      Mukai A, Yasuda K, Egashira S, Adachi T, Matsushita K, Hoshino T, Kuroda E.
    • Organizer
      第51回日本免疫学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] アレルギー性鼻炎におけるTh2細胞の役割。2022

    • Author(s)
      手束祥彩、松下一史、黒田悦史
    • Organizer
      第71回日本アレルギー学会学術大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] TSLPはCD4依存性、非依存性の両経路でStrongyloides venezuelensis感染に対する抵抗性に貢献する。2022

    • Author(s)
      安田好文、鯉田篤英、足立匠、松下一史、黒田悦史
    • Organizer
      第77回日本寄生虫学会西日本支部大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Induction of antigen-specific immune responses by interleukin-33 as a mucosal adjuvant.2022

    • Author(s)
      Mukai A, Yasuda K, Egashira S, Adachi T, Matsushita K, Kuroda E.
    • Organizer
      第29 回免疫毒性学会
    • Related Report
      2022 Annual Research Report
  • [Presentation] The role of Sp140 revealed in IgE and mast cell responses in collaborative cross mice.2022

    • Author(s)
      Matsushita K, Li X, Tsai M, Montgomery SB, Galli SJ.
    • Organizer
      第13回寄生虫感染免疫研究会
    • Related Report
      2021 Research-status Report
  • [Presentation] Role of thymic stromal lymphopoietin in the protection against Strongyloides venezuelensis infection.2022

    • Author(s)
      Yasuda K, Koida A, Adachi T, Matsushita K, Kuroda E.
    • Organizer
      第13回寄生虫感染免疫研究会
    • Related Report
      2021 Research-status Report
  • [Presentation] The role of Sp140 revealed in IgE and mast cell responses in collaborative cross mice.2021

    • Author(s)
      Matsushita K, Li X, Nakamura Y, Dong D, Mukai K, Tsai M, Montgomery SB, Galli SJ.
    • Organizer
      第50回日本免疫学会学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] Induction of antigen-specific immune responses by IL-33 as a mucosal adjuvant.2021

    • Author(s)
      Mukai A, Yasuda K, Egashira S, Adachi T, Matsushita K, Kuroda E.
    • Organizer
      第50回日本免疫学会学術集会
    • Related Report
      2021 Research-status 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