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Molecular mechanisms of pathogenesis by pathogenic helper T cells in pulmonary fibrosis

Research Project

Project/Area Number 20K17175
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 53030:Respiratory medicine-related
Research InstitutionNiigata University (2021)
Chiba University (2020)

Principal Investigator

Aoki Ami  新潟大学, 医歯学系, 助教 (60827674)

Project Period (FY) 2020-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2020: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
KeywordsCD4陽性T細胞 / 肺胞上皮細胞 / 修復機構 / 線維化 / 肺線維化 / 免疫学 / CD4陽性細胞 / 組織修復 / 肺線維症 / ヘルパーT細胞
Outline of Research at the Start

肺線維症は予後不良な慢性疾患であるが、発症機序は十分に解明されておらず、現在のところ有効な治療はない。
慢性炎症と線維化は深く関連することが分かっており、慢性炎症の病態形成の中心を担うヘルパーT細胞は、線維化に深く関わっていると考えられる。しかし、肺の末梢に位置する肺胞領域における組織線維化においてヘルパーT細胞が担う役割はいまだに不明である。本研究では、ヘルパーT細胞に着目し、肺の末梢に位置する肺胞領域での線維化誘導機構および修復機構を明らかにすることを目指す。

Outline of Final Research Achievements

Lung fibrosis is a chronic disease with a poor long-term prognosis, and its pathogenesis and exacerbation mechanisms remain largely unknown. In this research, we focused on CD4-positive T cells and alveolar epithelial cells to analyze the mechanisms of lung inflammation, repair, and fibrosis. The result suggests that CD4-positive T cells promote the differentiation of alveolar epithelial cells and the repair of the lung after injury.

Academic Significance and Societal Importance of the Research Achievements

本研究で対象にした難治性呼吸器疾患である肺の線維症は、生命予後が不良の疾患である。申請者は本研究において、これまで解明されていなかったCD4陽性T細胞と肺胞上皮細胞の関連と組織修復について検討した。本研究課題を遂行することで、肺胞上皮細胞を中心とした炎症と線維化の分子基盤を構築することができ、新たな病態解明や治療戦略開発に寄与することが可能である。

Report

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

    (9 results)

All 2021 2020 Other

All Journal Article (7 results) (of which Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (1 results) (of which Int'l Joint Research: 1 results) Remarks (1 results)

  • [Journal Article] Memory-type pathogenic TH2 cells and ILC2s in type 2 allergic inflammation2021

    • Author(s)
      Hirahara Kiyoshi、Aoki Ami、Kiuchi Masahiro、Nakayama Toshinori
    • Journal Title

      Journal of Allergy and Clinical Immunology

      Volume: - Issue: 6 Pages: 2063-2066

    • DOI

      10.1016/j.jaci.2021.02.006

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Pathogenic helper T cells2021

    • Author(s)
      Hirahara Kiyoshi、Aoki Ami、Nakayama Toshinori
    • Journal Title

      Allergology International

      Volume: 70 Issue: 2 Pages: 169-173

    • DOI

      10.1016/j.alit.2021.02.001

    • NAID

      130008024337

    • ISSN
      1323-8930, 1440-1592
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Eosinophils: Cells known for over 140 years with broad and new functions2021

    • Author(s)
      Aoki Ami、Hirahara Kiyoshi、Kiuchi Masahiro、Nakayama Toshinori
    • Journal Title

      Allergology International

      Volume: 70 Issue: 1 Pages: 3-8

    • DOI

      10.1016/j.alit.2020.09.002

    • NAID

      130007966778

    • ISSN
      1323-8930, 1440-1592
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] 病原性Th2細胞2021

    • Author(s)
      青木亜美、平原潔、中山俊憲
    • Journal Title

      アレルギ-

      Volume: 70(2) Pages: 134-135

    • NAID

      130007996948

    • Related Report
      2020 Research-status Report
  • [Journal Article] 病原性ヘルパ-T細胞とアレルギ-2020

    • Author(s)
      青木亜美、平原潔、中山俊憲
    • Journal Title

      アレルギ-の臨床

      Volume: 40(537) Pages: 31-34

    • Related Report
      2020 Research-status Report
  • [Journal Article] 肺の組織線維化をひき起こす新たな細胞集団の同定2020

    • Author(s)
      青木亜美、平原潔、中山俊憲
    • Journal Title

      臨床免疫・アレルギ-科

      Volume: 73(6) Pages: 652-657

    • NAID

      40022265221

    • Related Report
      2020 Research-status Report
  • [Journal Article] Comparison of Cytokine Profiles Between anti-ARS Antibody-Positive Interstitial Lung Diseases and Those With anti-MDA-5 Antibodies.2020

    • Author(s)
      Asakawa K, Yoshizawa K, Aoki A, Kimura Y, Tanaka T, Ohashi K, Hayashi M, Kikuchi T, Sato S, Takada T.
    • Journal Title

      Clin Rheumatol.

      Volume: in press Issue: 7 Pages: 2171-2178

    • DOI

      10.1007/s10067-020-04984-x

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] IL-5受容体抗体ベンラリズマブの好酸球性副鼻腔炎における抗体依存性細胞傷害活性作用の検討2020

    • Author(s)
      青木 亜美
    • Organizer
      JSA/WAO Joint Congress 2020(第69回日本アレルギー学会学術集会)
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Remarks] 千葉大学大学院医学研究院 免疫発生学HP

    • URL

      https://www.m.chiba-u.ac.jp/class/meneki/index.html

    • Related Report
      2020 Research-status Report

URL: 

Published: 2020-04-28   Modified: 2023-01-30  

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