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Exploration for novel anti-enterovirus compounds and identification of target host factors

Research Project

Project/Area Number 16K08822
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Virology
Research InstitutionNational Institute of Infectious Diseases

Principal Investigator

Arita Minetaro  国立感染症研究所, ウイルス第二部, 主任研究官 (70356244)

Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywords抗ウイルス薬 / ウイルス / 複製 / 宿主因子 / PI4KB / OSBP / エンテロウイルス / ポリオウイルス / ピコルナウイルス / 阻害剤 / アロステリック制御 / 作用機序 / 脂質 / ウィルス / 薬学
Outline of Final Research Achievements

We analyzed poliovirus mutants that showed partial resistance to inhibitors to host PI4KB/OSBP proteins, and found that the resistance mutation in viral 3A protein enhances the cleavage of viral 3AB protein by viral protease. We identified the target of previously uncharacterized anti-enterovirus compound MDL-860 as PI4KB, and discovered allosteric regulation of PI4KB via modification of cysteine residue at amino acid 646 by MDL-860. We isolated a poliovirus mutant that could show substantially complete resistance to PI4KB/OSBP inhibitors in vitro.

Academic Significance and Societal Importance of the Research Achievements

PI4KB/OSBP経路は、エンテロウイルスの複製に必要と考えられている宿主の経路であり、かつ低い細胞毒性を示す抗エンテロウイルス化合物の標的でもあるため、ウイルス複製における役割の解明が期待されています。今回の研究の中で、世界で初めてPI4KBのアロステリック制御機構を発見し、またPI4KB/OSBP阻害剤に耐性を示すウイルスの複製機構の一端の解明に成功しました。これらは、ウイルスの複製の本質およびウイルスの進化に関する学術的な重要性を持つ知見であるとともに、将来的には抗ウイルス治療におけるウイルスの耐性動態を制御出来る技術の開発にもつながることも期待されます。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report

Research Products

(13 results)

All 2019 2017 2016 Other

All Int'l Joint Research (7 results) Journal Article (3 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 3 results,  Acknowledgement Compliant: 1 results) Presentation (3 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results)

  • [Int'l Joint Research] Universite Cote d’Azur/CNRS(フランス)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Bulgarian Academy of Sciences(Bulgaria)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] University of Innsbruck(Austria)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research]

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] Dartmouth-Hitchcock Medical Center(米国)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] Bulgarian Academy of Sciences(Bulgaria)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] University of Innsbruck(Austria)

    • Related Report
      2016 Research-status Report
  • [Journal Article] Poliovirus Evolution toward Independence from the Phosphatidylinositol‐4 Kinase III β/Oxysterol-Binding Protein Family I Pathway2019

    • Author(s)
      Minetaro Arita, and Joelle Bigay
    • Journal Title

      ACS Infectious Dieases

      Volume: 印刷中

    • DOI

      10.1021/acsinfecdis.9b00038

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Allosteric regulation of phosphatidylinostol 4-kinase III beta by an antipicornavirus compound MDL-8602017

    • Author(s)
      Arita M., Dobrikov G., Purstinger G., Galabov A.S.
    • Journal Title

      ACS Infectious Diseases

      Volume: 3 Pages: 585-594

    • DOI

      10.1021/acsinfecdis.7b00053

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Poliovirus Studies during the Endgame of the Polio Eradication Program2017

    • Author(s)
      Minetaro Arita
    • Journal Title

      Japanese Journal of Infectious Diseases

      Volume: 70 Issue: 1 Pages: 1-6

    • DOI

      10.7883/yoken.jjid.2016.356

      10.7883/yoken.JJID.2016.356

    • NAID

      130005296392

    • ISSN
      1344-6304, 1884-2836
    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] Antiviral update2017

    • Author(s)
      Minetaro Arita
    • Organizer
      20th Polio Research Committee Meeting
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 宿主因子を標的とする抗エンテロウイルス化合物の探索およびウイルス複製/宿主細胞への影響の解析2017

    • Author(s)
      有田 峰太郎
    • Organizer
      日本薬学会第137回年会
    • Place of Presentation
      仙台、東北大学川内北キャンパス
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] 宿主因子を標的とするポリオウイルス複製阻害剤の探索2016

    • Author(s)
      有田 峰太郎
    • Organizer
      第89回日本生化学大会
    • Place of Presentation
      仙台、仙台国際センター
    • Related Report
      2016 Research-status Report
    • Invited

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Published: 2016-04-21   Modified: 2022-02-16  

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