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Study on new vaccine and therapy using the parmyxovirus lacking inflammasome antagonism

Research Project

Project/Area Number 20K08830
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 54030:Infectious disease medicine-related
Research InstitutionAichi Medical University

Principal Investigator

Komatsu Takayuki  愛知医科大学, 医学部, 教授 (20215388)

Co-Investigator(Kenkyū-buntansha) 田中 幸枝  福井大学, 学術研究院医学系部門, 助教 (10197486)
森田 奈央子  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: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsパラインフルエンザウイルス / メタニューモウイルス / アクセサリー蛋白質 / インフラマソーム / インターフェロン / ワクチン / 抗ウイルス薬 / パラミクソウイルス / ニューモウイルス / 自然免疫
Outline of Research at the Start

パラインフルエンザウイルス(PIV)の重症呼吸器感染症,ニパウイルスの致死的新興感染症など,幅広いパラミクソウイルス(PMV)の予防・治療法が望まれている.私は,アクセサリー蛋白質Vに,インフラマソーム抑制能(抗FM能)が保存されていることを明らかにした.V欠損ウイルス[V(-)]は弱毒化するため,V蛋白質やそれが関わる宿主因子は予防・治療法の標的となる.しかし,現在のV(-)は抗FM能以外の機能まで喪失するため,その役割の解明は難しい.本研究では,先ずⅠ型PIVを用いて全容を解明し,その情報をもとに,抗FM能のみを欠失した組換えPMVをデザインし,FM能が予防・治療法の標的となるか検討する.

Outline of Final Research Achievements

We generated mutants of the V protein of parainfluenza virus type 1 and the M2-2 protein of human metapneumovirus (HMPV), which have anti-inflammasome and anti-interferon (IFN) activity, by alanine substitution. No mutants of the V protein that lost only anti-inflammasome activity were obtained. On the other hand, several mutants of the M2-2 protein that lost only anti-inflammasome activity was obtained, and recombinant HMPV expressing the M2-2 mutant was created. When these recombinant viruses were infected with cultured cells, they did not inhibit inflammasome-dependent IL-1β secretion, but they did inhibit IFN-β production and were able to grow in IFN-producing cells. This study is expected to elucidate the role of the anti-inflammasome activity of HMPV.

Academic Significance and Societal Importance of the Research Achievements

ヒトメタニューモウイルス(HMPV)は、ときに細気管支炎・肺炎を引き起こす。しかし、特異的な治療法がなく、有効なワクチンや治療薬の開発が望まれている。HMPVは、宿主が産生するインターフェロン(IFN)産生とインフラマソーム依存性IL-1βの分泌を阻害する機構を備えている。抗IFN能については、多くの研究がなされているので、本研究では、抗インフラマソーム能のみを喪失したHMPVを作製した。このウイルスを使用して、抗インフラマソーム能がワクチンや治療薬の新たな標的として有効なのかを検証できるようになった。

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

    (7 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 (3 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] 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-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)
    • 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
    • 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
      日本ウイルス学会
    • Related Report
      2021 Research-status Report

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

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