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A novel antiviral strategy against respiratory syncytial virus disrupting protein-protein interactions

Research Project

Project/Area Number 18K07834
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 52050:Embryonic medicine and pediatrics-related
Research InstitutionKurume University

Principal Investigator

Hara Koyu  久留米大学, 医学部, 准教授 (40309753)

Co-Investigator(Kenkyū-buntansha) 柏木 孝仁  久留米大学, 医学部, 准教授 (70320158)
渡邊 浩  久留米大学, 医学部, 教授 (90295080)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
KeywordsRSV / 抗ウイルス薬 / RNAポリメラーゼ / P / 相互作用 / パラミクソウイルス / ペプチド / RSウイルス / ポリメラーゼ / Pタンパク質 / Lポリメラーゼ / ペプチド薬剤 / 乳幼児 / 下気道感染症
Outline of Final Research Achievements

Since most viral replication processes depend on the protein-protein interactions, the disruption of such interactions between viral proteins is a promising strategy for drug discovery. Based on a mimicking approach that targets the face of interaction, we designed various peptide-based inhibitors against respiratory syncytial virus (RSV). We found that the peptide P Fr derived from viral phosphoprotein P strongly binds to P and suppresses the RNA polymerase activity, and consequently inhibits viral replication. These results highlight P as an important target for the development of antiviral compounds against RSV and other paramyxoviruses.

Academic Significance and Societal Importance of the Research Achievements

ウイルスタンパク質どうしの相互作用部位または機能部位に基づき抗ウイルス薬を理論的に設計するという本研究の新しい手法は、従来のランダムスクリーニング法に加え新たな創薬法として提唱できる。アミノ酸配列を基につくるペプチド阻害薬であるため、スクリーニングにかける時間が大幅に短縮でき、かつ耐性ウイルスに対しても迅速に対応できる利点がある。またRNAポリメラーゼの補因子であるPタンパク質が標的になりうることは、本手法がRSウイルスだけでなくPタンパク質をもつ全てのモノネガウイルスに適用できる可能性を有している。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (9 results)

All 2020 2019 2018 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (7 results) (of which Int'l Joint Research: 3 results) Remarks (1 results)

  • [Journal Article] A small fragmented P protein of respiratory syncytial virus inhibits virus infection by targeting P protein.2020

    • Author(s)
      Hara K, Yaita K, Khamrin P, Kumthip K, Kashiwagi T, Eleouet JF, Rameix-Welti MA, Watanabe H.
    • Journal Title

      J Gen Virol

      Volume: 101 Issue: 1 Pages: 21-32

    • DOI

      10.1099/jgv.0.001350

    • Related Report
      2020 Annual Research Report 2019 Research-status Report
    • Peer Reviewed
  • [Presentation] New approach for inhibiting respiratory syncytial virus infection.2020

    • Author(s)
      Koyu Hara
    • Organizer
      U.S.-Japan Cooperative Medical Sciences Program (USJCMSP) 22nd
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A new approach for inhibiting respiratory syncytial virus infection.2020

    • Author(s)
      Koyu Hara
    • Organizer
      U.S. Japan Cooperative Medical Sciences Program (USJCMSP) 22nd Acute Respiratory Infections (ARI) Panel Meeting; Viral Diseases.
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] ウイルスRNAポリメラーゼ複合体由来のP断片は抗RSウイルス活性を示す2019

    • Author(s)
      原 好勇、柏木孝仁、渡邊 浩
    • Organizer
      第42回日本分子生物学会
    • Related Report
      2019 Research-status Report
  • [Presentation] インフルエンザウイルスRNAポリメラーゼPB2サブユニットのN末領域は転写および複製に関与している2019

    • Author(s)
      原 好勇
    • Organizer
      第89回日本感染症学会西日本地方会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] 精製したRSウイルスのP断片はRSウイルスの増殖を抑制する2019

    • Author(s)
      原 好勇、柏木孝仁、渡邊 浩
    • Organizer
      第 93回日本感染症学会総会
    • Related Report
      2019 Research-status Report
  • [Presentation] The C-terminal fragment of the respiratory syncytial virus phosphoprotein inhibits the viral polymerase activity.2018

    • Author(s)
      Koyu Hara, Kenichiro Yaita, Takahito Kashiwagi and Hiroshi Watanabe
    • Organizer
      Negative Strand Virus meeting
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] RSウイルスの増殖を抑制する欠損型Pの作用機序について2018

    • Author(s)
      八板謙一郎、原 好勇、柏木孝仁、渡邊 浩
    • Organizer
      第92回日本感染症学会学術講演会
    • Related Report
      2018 Research-status Report
  • [Remarks] 久留米大学医学部感染制御学講座

    • URL

      http://www.med.kurume-u.ac.jp/med/virol/jp/index.html

    • Related Report
      2020 Annual Research Report 2019 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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