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Development of a novel antifungal agent based on the membrane acting molecule which discriminate human and fungal membrane

Research Project

Project/Area Number 21K18963
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 33:Organic chemistry and related fields
Research InstitutionKyushu University

Principal Investigator

Oishi Tohru  九州大学, 理学研究院, 教授 (90241520)

Project Period (FY) 2021-07-09 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2023: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2022: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2021: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Keywordsアンフィジノール3 / 抗真菌剤 / 化学合成 / 構造活性相関 / 膜作用分子 / 構造活性相
Outline of Research at the Start

アンフィジノール3(AM3)は,強い抗真菌活性を示す天然物である。細胞膜に直接作用して抗真菌活性を発現することが示唆されており,耐性菌が出現しにくい抗真菌薬のリード化合物として期待される。しかし,天然からの供給は難しく,また,溶血活性を持つことが問題である。そこで本研究では,AM3アナログ分子をリード化合物とした合成化学的アプローチから,耐性菌が出現しにくく選択毒性の高い抗真菌剤の開発を目的とする。細胞膜の構成成分であるステロールはヒトと真菌で異なるため,選択的な分子認識を行うことができれば,高い選択毒性を有する新たな抗真菌剤の開発につながると期待され,人類の健康増進に大きく貢献できる。

Outline of Final Research Achievements

Amphidinol 3 (AM3) is a natural product which elicits potent antifungal activity. In this research, AM3 was chosen as a lead compound to develop a novel antifungal drug, we carried out design, synthesis, and evaluation of biological activity of artificial analogues of AM3. A various analogues were synthesized via Suzuki-Miyaura coupling of polyol sections and bis-THP sections followed by Julia-Kocienski olefination to introduce polyene sections. Evaluation of antifungal activity of the analogues revealed that stereochemistry of the bis-THP moiety is strictly recognized. Furthermore, the polyol moiety can be removed from C1 to C20, and slight structural difference at the polyene terminus affects on antifungal activity.

Academic Significance and Societal Importance of the Research Achievements

感染症は人類にとって大きな脅威である。真菌はヒトと同じ真核生物であるため,優れた選択毒性を発揮できる薬物が少なく,抗真菌薬の開発は立ち遅れている。さらに,耐性菌の出現は社会問題となっており,より効果的な抗真菌剤の開発が求められている。アンフィジノール3(AM3)は,強い抗真菌活性を示す天然物である。細胞膜に直接作用して抗真菌活性を発現することが示唆されており,耐性菌が出現しにくい抗真菌薬のリード化合物として期待される。本研究で行ったAM3の人工アナログ分子の合成と構造活性相関の成果は,次世代の抗真菌活剤の開発を行う上で重要な情報を与えた。

Report

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

    (13 results)

All 2024 2023 2022 2021 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (9 results) (of which Int'l Joint Research: 5 results,  Invited: 2 results) Book (1 results) Remarks (2 results)

  • [Journal Article] Truncated derivatives of amphidinol 3 reveal the functional role of polyol chain in sterol-recognition and pore formation.2024

    • Author(s)
      Nobuaki Matsumori, Manami Hieda, Masayuki Morito, Yuma Wakamiya, Tohru Oishi
    • Journal Title

      Bioorg. Med. Chem. Lett.

      Volume: 98 Pages: 129594-129594

    • DOI

      10.1016/j.bmcl.2023.129594

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 化学合成に基づいたアンフィジノール3の構造活性相関研究2023

    • Author(s)
      保野 陽子、三田 祐輔、山下 祐輝、若宮 佑真、大石 徹
    • Organizer
      第65回天然有機化合物討論会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Structure-Activity Relationship Study of Amphidinol 3 Based on Chemical Synthesis2023

    • Author(s)
      Yoko Yasuno, Yusuke Mita, Yuki Yamashita, Yuma Wakamiya, and Tohru Oishi
    • Organizer
      International Symposium in Okinawa, 2023, 0n Ciguatera and Related Marine Biotoxins
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Total Synthesis and Structure-Activity Relationship Study of Amphidinol 32023

    • Author(s)
      Tohru Oishi, Yuma Wakamiya, Yusuke Mita, Yuki Yamashita, Yoko Yasuno
    • Organizer
      The 15th International Kyoto Conference on New Aspects of Organic Chemistry (IKCOC-15)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Total Synthesis and Structure-Activity Relationship Study of Amphidinol 32022

    • Author(s)
      Tohru Oishi
    • Organizer
      International Congress on Pure & Applied Chemistry (ICPAC) 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] アンフィジノール3の人工類縁体の構造活性相関研究2022

    • Author(s)
      山下 祐輝,三田 祐輔,若宮 佑真,保野 陽子,大石 徹
    • Organizer
      日本化学会第102春季年会(2022)
    • Related Report
      2021 Research-status Report
  • [Presentation] Total Synthesis of Amphidinol 32021

    • Author(s)
      Tohru Oishi
    • Organizer
      Pacifichem 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Synthesis and Stereochemistry of the C30-C63 Section of Karlotoxin 22021

    • Author(s)
      Keitaro Umeno, Tohru Oishi
    • Organizer
      Pacifichem 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 化学合成に基づいたアンフィジノール3の構造活性相関研究2021

    • Author(s)
      三田 祐輔,若宮 佑真,保野 陽子,大石 徹
    • Organizer
      日本ケミカルバイオロジー学会 第15回年会
    • Related Report
      2021 Research-status Report
  • [Presentation] アンフィジノールの人工類縁体の合成研究2021

    • Author(s)
      三田 祐輔,保野 陽子,大石 徹
    • Organizer
      第58回化学関連支部合同九州大会
    • Related Report
      2021 Research-status Report
  • [Book] Modern Natural Product Synthesis - Overcoming Difficulties. Chapter 3, A Long Journey towards Structure Revision and Total Synthesis of Amphidinol 32024

    • Author(s)
      Tohru Oishi, Eds. M. Nakata, K. Tanino, K. Nagasawa, and S. Yokoshima
    • Total Pages
      16
    • Publisher
      Springer
    • ISBN
      9819716187
    • Related Report
      2023 Annual Research Report
  • [Remarks]

    • URL

      http://www.scc.kyushu-u.ac.jp/Seibutsuyuki/research.html

    • Related Report
      2023 Annual Research Report
  • [Remarks]

    • URL

      http://www.scc.kyushu-u.ac.jp/Seibutsuyuki/index.html

    • Related Report
      2022 Research-status Report

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Published: 2021-07-13   Modified: 2025-01-30  

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