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Differential role of NADPH oxidase in autoimmune diseases

Research Project

Project/Area Number 20K07294
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 48030:Pharmacology-related
Research InstitutionKyoto Prefectural University of Medicine

Principal Investigator

Matsumoto Misaki  京都府立医科大学, 医学(系)研究科(研究院), 助教 (80533926)

Co-Investigator(Kenkyū-buntansha) 岩田 和実  京都府立医科大学, 医学(系)研究科(研究院), 講師 (60305571)
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: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
KeywordsNADPH oxidase / スーパーオキシド / 関節炎 / 自己免疫疾患 / リポポリサッカライド / リポ多糖 / 活性酸素
Outline of Research at the Start

NADPH oxidaseはスーパーオキシドなどの活性酸素種を産生する酵素であり、その触媒サブユニットであるNOXには複数のアイソフォームが存在する。本研究では、免疫細胞におけるNOX1およびNOX2アイソフォームの相違点を明らかにし、自己免疫疾患の病態に関わる役割を解明する。本研究により抗酸化薬では実現できないNOXアイソフォーム特異的な治療戦略の開発につなげる。

Outline of Final Research Achievements

Nox1 deficiency significantly suppressed the onset and severity of the LPS-induced exacerbation of collagen-induced arthritis in mice. Splenocytes from both genotypes showed similar Th1/Th17 responses at 2 weeks after the collagen immunization. On the other hand, intraperitoneal injection of LPS increased NOX1 mRNA in CD11b+ monocytes/macrophages as well as CD11c+ dendritic cells of the spleen. These results suggest that NOX1 is involved in the effector (inflammation) phase of the experimental arthritis, but not in the priming phase.

Academic Significance and Societal Importance of the Research Achievements

NOX2/NADPH oxidaseの遺伝的機能欠損は自己免疫疾患の発症リスクを増大させる。このため自己免疫疾患におけるNOX2の抑制的役割は注目されているが、発現量で劣るNOX1についてはあまり解析が進んでいなかった。本研究は、NOX1はNOX2と異なり自己免疫疾患の発症に寄与することを初めて報告したものであり、免疫系細胞におけるNOX1の新しい役割を提起するものである。

Report

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

    (5 results)

All 2022 2021

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

  • [Journal Article] Bortezomib is an effective enhancer for chemical probe-dependent superoxide detection.2022

    • Author(s)
      Matsumoto M, Sawada H, Iwata K, Ibi M, Asaoka N, Katsuyama M, Shintani-Ishida K, Ikegaya H, Takegami S, Umemura A, Yabe-Nishimura C.
    • Journal Title

      Front Med (Lausanne)

      Volume: 9 Pages: 941180-941180

    • DOI

      10.3389/fmed.2022.941180

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] NOX1/NADPH oxidase is involved in the LPS-induced exacerbation of collagen-induced arthritis2021

    • Author(s)
      Matsumoto M, Liu J, Iwata K, Ibi M, Asaoka N, Zhang X, Katsuyama M, Matsuda M, Nabe T, Scroder K, Yabe-Nishimura C.
    • Journal Title

      J Pharmacol Sci

      Volume: 146 (2) Issue: 2 Pages: 88-97

    • DOI

      10.1016/j.jphs.2021.01.009

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] ボルテゾミブ添加によるスーパーオキシドの高感度な検出法2022

    • Author(s)
      松本みさき、矢部千尋、楳村敦詩.
    • Organizer
      第96回日本薬理学会年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] スーパーオキシド産生酵素NOX1/NADPH oxidase欠損マウスにおけるLPS惹起性コラーゲン誘発性関節炎の抑制2021

    • Author(s)
      松本みさき
    • Organizer
      第22回免疫サマースクール2021
    • Related Report
      2021 Research-status Report
  • [Presentation] 実験的関節炎の発症に関わる活性酸素産生酵素NOX1/NADPHオキシダーゼ2021

    • Author(s)
      松本みさき、矢部千尋
    • Organizer
      第94回日本薬理学会年会
    • Related Report
      2020 Research-status Report

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

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