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New screening methods for inhibitor of bovine leukemia virus using Luminescence Syncytium Induction Assay (LuSIA)

Research Project

Project/Area Number 17K18356
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Integrative animal science
Virology
Research InstitutionInstitute of Physical and Chemical Research

Principal Investigator

Sato Hirotaka  国立研究開発法人理化学研究所, 開拓研究本部, 研究員 (00708539)

Project Period (FY) 2017-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2018: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords牛白血病ウイルス / ウイルス感染阻害剤 / 薬剤スクリーニング / LuSIA / ウイルス / 免疫学 / 感染制御 / 牛白血病
Outline of Final Research Achievements

We established new cell line,CC81-GREMG, to construct sensitive method of bovine leukemia virus (BLV) replication inhibitor. We start the screening using this method and 400 compounds of pilot library presented by RIKEN NPDepo. In the result, we got 16 hit compounds, which showed over 90% of viability and over 30% inhibition of fluorescence syncytium formation. Furthermore, 6 compounds within the 16 hit compounds showed dose dependency at 10 to 0.1ug/mL. To find highly active analogs and confirm the their activity, we are screening the analog library of 6 hit compounds. finally, we confirmed 4 highly active analogs from hit compound A, B, C and E, and these structures showed structure-activity relationships.

Academic Significance and Societal Importance of the Research Achievements

高感度な第2世代レポーター細胞CC81-GREMGを開発したことにより、BLV感染性阻害スクリーニングの感度が向上し、多くの阻害剤候補を得ることに成功した。今回得られた高感度感染性測定法は、薬剤スクリーニングのみならず混入ウイルスの検出など幅広い活用が見込まれる。牛白血病ウイルスの複製を阻害する活性を持つ候補化合物はそれぞれ基本構造が異なっており、類縁体化合物のスクリーニングを行ったことで、より活性の高い化合物をそれぞれ見いだすことに成功した。今後は、最も活性の強い類縁体を用いて機能解析を進めていくことで、作用機序の解明および牛白血病治療法開発への応用が期待される。

Report

(3 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • Research Products

    (5 results)

All 2018 2017

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

  • [Journal Article] Development of a luminescence syncytium induction assay (LuSIA) for easily detecting and quantitatively measuring bovine leukemia virus infection.2018

    • Author(s)
      Sato H, Watanuki S, Murakami H, Sato R, Ishizaki H, Aida Y.
    • Journal Title

      Archives of Virology

      Volume: in press Issue: 6 Pages: 1519-1530

    • DOI

      10.1007/s00705-018-3744-7

    • Related Report
      2018 Annual Research Report 2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] レセプター候補高発現レポーター細胞による牛白血病ウイルス感染性測定法(Luminescence syncytium induction assay; LuSIA)の高感度化2018

    • Author(s)
      佐藤 洋隆、Bai Lanlan、横山 佳菜、間 陽子
    • Organizer
      第161回日本獣医学会学術集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] THE LUMINESCENCE SYNCYTIUM INDUCTION ASSAY (LuSIA) IS NEW METHOD FOR ANALYSING BOVINE LEUKEMIA VIRUS INFECTIVITY2018

    • Author(s)
      Hirotaka Sato, Sonoko Watanuki, Lanlan Bai, Liushiqi Borjigin, Hiroshi Ishizaki, Yoko Aida
    • Organizer
      The 30th International Workshop on Retroviral Pathogenesis
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 新規牛白血病ウイルス感染性定量法 Luminescence Syncytium Induction Assay の開発と応用2017

    • Author(s)
      佐藤洋隆、綿貫園子、佐藤礼一郎、村上裕信、石崎宏、間陽子
    • Organizer
      第4回日本HTLV-1学会学術集会(大阪府・枚方市)
    • Related Report
      2017 Research-status Report
  • [Presentation] 高感度変異導入レポーター細胞を用いた Luminescence Syncytium Induction Assay(LuSIA)による牛白血病ウイルス感染性の検出2017

    • Author(s)
      佐藤洋隆、綿貫園子、大附寛幸、白ランラン、佐藤礼一郎、村上裕信、石崎宏、間陽子
    • Organizer
      第160回日本獣医学会学術集会(鹿児島県・鹿児島市)
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2020-03-30  

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