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

Identification of pathogenic effects of IgA in respiratory diseases

Research Project

Project/Area Number 20K08526
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 53030:Respiratory medicine-related
Research InstitutionTeikyo University

Principal Investigator

Suzukawa Maho  帝京大学, 医学部, 助手 (20453699)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
KeywordsIgA / レセプター / ANXA2 / サイトカイン / 気管支平滑筋細胞 / 血管内皮細胞 / 気道上皮細胞 / 肺線維芽細胞 / 呼吸器
Outline of Research at the Start

IgAは生体内において1日当たり最も大量に産生される免疫グロブリンであり、粘膜で重要な生体防御機構を形成していると考えられている。本研究はIgAの呼吸器疾患に対する病原性作用とその機序を明らかにし、IgAをターゲットとした治療介入の可能性を探求することを目的とする。本研究では呼吸器疾患モデルマウスを用いてIgAの生体内の作用を明らかにし、遺伝子改変マウスを用いて、その責任細胞、責任分子までも明らかにする。これまでIgAは生体防御に欠かせない保護的分子として捉えられているが、本研究でIgAの病原性作用とその作用機序を明らかにできれば、新規の病態解明につながり、将来的には新規治療法につながる。

Outline of Final Research Achievements

The aim of this study was to determine the pathogenic effects of IgA on respiratory diseases.
IgA in bronchoalveolar lavage fluid was elevated in mouse models of asthma and IPF. We found that IgA enhanced cytokine production from airway smooth muscle cells and vascular endothelial cells, and published our findings in an English journal. Using airway epithelial cell lines and immunoprecipitation, we identified a novel IgA receptor, ANXA2, and found that ANXA2 contributed in part to the enhanced cytokine production from airway epithelial cells by IgA, which was published in an English journal. This study suggests that IgA may exert pathogenic effects on respiratory diseases.

Academic Significance and Societal Importance of the Research Achievements

本研究を含め、当研究室ではこれまでにIgAが呼吸器構成細胞を活性化することを系統的に明らかにしてきた。これまでIgAの生体保護的な役割には注目されてきたが、病原性役割について明らかにした本研究データの蓄積は世界的にも見当たらず、独自のものである。さらに今回IgAに対する気道上皮細胞上の新たなレセプターを同定し得た。本研究成果から、IgAおよびANXA2が呼吸器疾患の新規治療標的となる可能性が想起され、意義深い研究になったと考えている。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • Research Products

    (13 results)

All 2024 2023 2022 2021

All Journal Article (10 results) (of which Peer Reviewed: 10 results,  Open Access: 2 results) Presentation (3 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] Relationship between serum IgA levels and low percentage forced expiratory volume in the first second in asthma2024

    • Author(s)
      Imoto Sahoko、Suzukawa Maho、Takada Kazufumi、Watanabe Shizuka、Isao Asari、Nagase Takahide、Nagase Hiroyuki、Ohta Ken
    • Journal Title

      Journal of Asthma

      Volume: 61 Issue: 9 Pages: 1042

    • DOI

      10.1080/02770903.2024.2321306

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Serum IgA augments adhesiveness of cultured lung microvascular endothelial cells and suppresses angiogenesis2023

    • Author(s)
      Takada Kazufumi、Suzukawa Maho、Igarashi Sayaka、Uehara Yuuki、Watanabe Shizuka、Imoto Sahoko、Ishii Masaki、Morio Yoshiteru、Matsui Hirotoshi、Akishita Masahiro、Ohta Ken
    • Journal Title

      Cellular Immunology

      Volume: 393-394 Pages: 104769-104769

    • DOI

      10.1016/j.cellimm.2023.104769

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Severe Asthma Where Eosinophilic Granulomatosis with Polyangiitis Became Apparent after the Discontinuation of Dupilumab2022

    • Author(s)
      Ikeda Miki、Ohshima Nobuharu、Kawashima Masahiro、Shiina Meiko、Kitani Masashi、Suzukawa Maho
    • Journal Title

      Internal Medicine

      Volume: 61 Issue: 5 Pages: 755-759

    • DOI

      10.2169/internalmedicine.7990-21

    • NAID

      130008165911

    • ISSN
      0918-2918, 1349-7235
    • Year and Date
      2022-03-01
    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Serum total IgE may be a biomarker among chronic pulmonary aspergillosis patients with elevated serum total IgE levels: A cohort study with pathological evaluations2022

    • Author(s)
      Watanabe Shizuka、Suzuki Junko、Suzukawa Maho、Takeda Keita、Imoto Sahoko、Kitani Masashi、Fukami Takeshi、Sasaki Yuka、Hebisawa Akira、Matsui Hirotoshi
    • Journal Title

      Medical Mycology

      Volume: 60 Issue: 3

    • DOI

      10.1093/mmy/myac006

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] IL-1RA in the supernatant of QuantiFERON-TB Gold In-Tube and QuantiFERON-TB Gold Plus is useful for discriminating active tuberculosis from latent infection.2021

    • Author(s)
      Akashi S, Suzukawa M, Takeda K, Asari I, Kawashima M, Ohshima N, Inoue E, Sato R, Shimada M, Suzuki J, Yamane A, Tamura A, Ohta K, Tohma S, Teruya K, Nagai H.
    • Journal Title

      J Infect Chemother.

      Volume: 27 Issue: 4 Pages: 617-624

    • DOI

      10.1016/j.jiac.2020.11.023

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Prognostic factors of chronic pulmonary aspergillosis: A retrospective cohort of 264 patients from Japan2021

    • Author(s)
      Kimura Yuya、Sasaki Yuka、Suzuki Junko、Suzuki Jun、Igei Hiroshi、Suzukawa Maho、Matsui Hirotoshi
    • Journal Title

      PLOS ONE

      Volume: 16 Issue: 4 Pages: e0249455-e0249455

    • DOI

      10.1371/journal.pone.0249455

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Interrupted time-series analyses of routine vaccination program for elderly pneumonia patients in Japan; an ecological study using aggregated nationwide inpatient data2021

    • Author(s)
      Kobayashi Koichi、Jo Taisuke、Mimura Wataru、Suzukawa Maho、Ohshima Nobuharu、Tanaka Goh、Akazawa Manabu、Matsui Hiroki、Fushimi Kiyohide、Yasunaga Hideo、Nagase Takahide、Nagai Hideaki
    • Journal Title

      Human Vaccines & Immunotherapeutics

      Volume: 17 Issue: 8 Pages: 2661-2669

    • DOI

      10.1080/21645515.2021.1875760

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Eotaxin (CCL11) enhances mediator release from human basophils2021

    • Author(s)
      Suzuki Yuki、Yamaguchi Masao、Mori Miki、Sugimoto Naoya、Suzukawa Maho、Iikura Motoyasu、Nagase Hiroyuki、Ohta Ken
    • Journal Title

      Allergy

      Volume: 76 Issue: 11 Pages: 3549

    • DOI

      10.1111/all.14975

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] High serum cytokine levels may predict the responsiveness of patients with severe asthma to benralizumab2021

    • Author(s)
      Watanabe Shizuka、Suzukawa Maho、Tashimo Hiroyuki、Ohshima Nobuharu、Asari Isao、Imoto Sahoko、Kobayashi Nobuyuki、Tohma Shigeto、Nagase Takahide、Ohta Ken
    • Journal Title

      Journal of Asthma

      Volume: 1 Issue: 8 Pages: 1-11

    • DOI

      10.1080/02770903.2021.1942039

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Real-world benefits of biologics for asthma: Exacerbation events and systemic corticosteroid use2021

    • Author(s)
      Kimura Yuya、Suzukawa Maho、Inoue Norihiko、Imai Shinobu、Akazawa Manabu、Matsui Hirotoshi
    • Journal Title

      World Allergy Organization Journal

      Volume: 14 Issue: 11 Pages: 100600-100600

    • DOI

      10.1016/j.waojou.2021.100600

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Interim report of a multicenter prospective cohort study of patients with asthma (TNHAzma) in Japan2021

    • Author(s)
      鈴川真穂
    • Organizer
      APSR 2021Congress
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] TNH-Azma多施設共同喘息コホート研究における登録症例の中間報告2021

    • Author(s)
      鈴川真穂
    • Organizer
      第70回日本アレルギー学会学術大会
    • Related Report
      2021 Research-status Report
  • [Presentation] アレルギー疾患における好塩基球の作用と好塩基球活性化試 験の進歩2021

    • Author(s)
      鈴川真穂
    • Organizer
      第70回日本アレルギー学会学術大会
    • Related Report
      2021 Research-status Report
    • Invited

URL: 

Published: 2020-04-28   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi