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Influence of inflammasome on RS virus pathogenesis

Research Project

Project/Area Number 20K17474
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 54030:Infectious disease medicine-related
Research InstitutionAichi Medical University

Principal Investigator

Morita Naoko  愛知医科大学, 医学部, 助教 (20815881)

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: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
KeywordsRSウイルス
Outline of Research at the Start

RSウイルスは、高率に細気管支炎、肺炎などに移行し重症化する。この病原性は、自然免疫からの逃避によると考えられるが、既知の自然免疫機構だけでは説明できない。近年、呼吸器ウイルスに重要な自然免疫としてインフラマソームが注目されている。当研究室では、近縁のウイルスのアクセサリー蛋白質に、インフラマソーム抑制能が保存されていることを見出した。そこで本研究では、アクセサリー蛋白質を欠失した組換えRSウイルスを作製し、インフラマソーム抑制能への影響を検討する。

Outline of Final Research Achievements

In this study, we examined the mechanism of inflammasome activation by RS virus. Through analysis of the impact of individual RS virus proteins on the inflammasome, we identified a specific viral protein capable of independently promoting inflammasome activity. Further investigation revealed that certain domains within this protein were sufficient to elicit a similar enhancement in activity, indicating that the regions involved in activation have been identified.

Academic Significance and Societal Importance of the Research Achievements

RSウイルスは、インフラマソームを過剰に活性化させることが重症化の一因になることが分かってきている。今回、そのメカニズムとして、活性化に関わる領域を特定した。今後、さらに詳細なメカニズムを明らかにすることで、その領域をターゲットとした治療薬などへの開発に貢献できると考える。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (8 results)

All 2022 2021 2020

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

  • [Journal Article] Human metapneumovirus M2-2 protein inhibits RIG-I signaling by preventing TRIM25-mediated RIG-I ubiquitination2022

    • Author(s)
      Tanaka Y, Morita N, Kitagawa Y, Bin Gotoh, Komatsu T(責任著者).
    • Journal Title

      Front Immunol.

      Volume: 22 Pages: 1-15

    • DOI

      10.3389/fimmu.2022.970750

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] SeV C Protein Plays a Role in Restricting Macrophage Phagocytosis by Limiting the Generation of Intracellular Double-Stranded RNA2022

    • Author(s)
      Morita Naoko、Tanaka Yukie、Takeuchi Kenji、Kitagawa Yoshinori、Sakuma Ryusuke、Koide Naoki、Komatsu Takayuki
    • Journal Title

      Frontiers in Microbiology

      Volume: 13 Pages: 1-13

    • DOI

      10.3389/fmicb.2022.780534

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Sendai virus C protein affects macrophage function, which plays a critical role in modulating disease severity during Sendai virus infection in mice2022

    • Author(s)
      Sakuma R, Morita N, Tanaka Y, Koide N, Komatsu T(責任著者).
    • Journal Title

      Microbiol Immunol.

      Volume: 66 Issue: 3 Pages: 124-134

    • DOI

      10.1111/1348-0421.12956

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Sendai virus V protein decreases nitric oxide production by inhibiting RIG-I signaling in infected RAW264.7 macrophages.2020

    • Author(s)
      Morita N, Tanaka Y, Odkhuu E, Naiki Y, Komatsu T, Koide N.
    • Journal Title

      Microbes Infect.

      Volume: - Issue: 8 Pages: 322-330

    • DOI

      10.1016/j.micinf.2020.01.005

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Human RS virus proteins involved in NLRP3 inflammasome activation2022

    • Author(s)
      Naoko Morita, Yukie Tanaka, Takayuki Komatsu
    • Organizer
      The 70 th Annual Meeting of the Japanese Society for Virology 2022
    • Related Report
      2022 Research-status Report
  • [Presentation] Human metapneumovirus M2-2 protein inhibits RIG-I signaling by preventing TRIM25-mediated RIG-I ubiquitination.2022

    • Author(s)
      Tanaka Y, Morita N, Kitagawa Y, Gotoh B, Komatsu T.
    • Organizer
      The 70 th Annual Meeting of the Japanese Society for Virology 2022
    • Related Report
      2022 Research-status Report
  • [Presentation] ヒトメタニューモウイルスM2-2蛋白質のインターフェロンーβシグナル抑制機構2022

    • Author(s)
      田中幸枝、森田奈央子、小松孝行
    • Organizer
      細菌学会中部支部総会(金沢) 2022年
    • Related Report
      2022 Research-status Report
  • [Presentation] センダイウイルスV蛋白質は RIG-Iシグナルを阻害することで一酸化窒素の産生を抑制する2021

    • Author(s)
      森田奈央子 田中幸枝 小松孝行
    • Organizer
      ウイルス学会
    • Related Report
      2021 Research-status Report

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

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