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In-situ synthesis of bioactive substances in a cell using near-infrared two-photon excitation

Research Project

Project/Area Number 20K21197
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 InstitutionHiroshima University

Principal Investigator

ABE MANABU  広島大学, 先進理工系科学研究科(理), 教授 (30273577)

Co-Investigator(Kenkyū-buntansha) 森岡 徳光  広島大学, 医系科学研究科(薬), 教授 (20346505)
Project Period (FY) 2020-07-30 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2021: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2020: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords2光子励起 / ドラッグデリバリー / 光[2+2]付加環化反応 / 2光子励起 / 生物活性物質 / オキセタン / 付加環化反応 / 2光子反応 / 細胞内in-situ合成
Outline of Research at the Start

必要な生物活性物質を必要な量だけ自在に作り出すことができる有機合成化学反応の開発は,持続的に発展する社会の構築には欠かせない.本研究では,近赤外2光子励起を用いた1細胞内で生物活性物質をin-situ合成する手法の開発に挑戦し,生命現象の解明と新治療法の開発につながる究極のドラッグデリバリーシステムの構築を目指す萌芽的研究を実施する

Outline of Final Research Achievements

We attempted to develop a method for in-situ synthesis of bioactive substances in a single cell using near-infrared two-photon excitation, with the aim of constructing an ultimate drug delivery system that will lead to the elucidation of life phenomena and the development of new therapeutic agents. We found that a coumarin derivative 1, which has a styryl group with high two-photon sensitivity in the near-infrared region, has two-photon absorption capacity around 810 nm, and the formation of a photodimer of 1 was confirmed. These experimental results are promising for the development of an in-situ synthesis method of biologically active substances in a single cell using near-infrared two-photon excitation, which was the initial goal of this study.

Academic Significance and Societal Importance of the Research Achievements

必要な機能性材料や活性物質を必要な量だけ自在に作り出すことができる有機合成化学反応の開発は,持続的に発展する社会の構築には欠かせない.そのような試験管内での自在合成を,生命の源である細胞内で実施する事ができれば,生命現象の解明のみならず究極のドラッグデリバリーシステムの構築に繋がり,生命化学研究に新たな風を吹き込むと強く期待される.本研究では,近赤外2光子感応性の発色団を用いた有機光反応が細胞内で可能であるかを精査し,複雑細胞環境下での有機合成反応の開発の手がかりを掴むことに挑戦した.この事により,生命科学研究にパラダイムシフトが起こり,臨床での新たな疾患治療法へと展開することが可能である.

Report

(3 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • Research Products

    (9 results)

All 2022 2021 Other

All Int'l Joint Research (4 results) Journal Article (4 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 4 results,  Open Access: 2 results) Remarks (1 results)

  • [Int'l Joint Research] University of Reims(フランス)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] National Central University(台湾)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] レンヌ大学(フランス)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] 台湾国立中央大学(その他の国・地域)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Photoreaction of 4-(Bromomethyl)-7-(diethylamino)coumarin: Generation of a Radical and Cation Triplet Diradical during the C-Br Bond Cleavage2022

    • Author(s)
      Takano Ma-aya、Abe Manabu
    • Journal Title

      Organic Letters

      Volume: 24 Issue: 15 Pages: 2804-2808

    • DOI

      10.1021/acs.orglett.2c00694

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 2-(4-Nitrophenyl)-1-indolyl-3-methyl Chromophore: A Versatile Photocage that Responds to Visible-light One-photon and Near-infrared-light Two-photon Excitations2022

    • Author(s)
      Lin Qianghua、Guo Runzhao、Hamao Kozue、Takagi Ryukichi、Abe Manabu
    • Journal Title

      Chemistry Letters

      Volume: 51 Issue: 2 Pages: 153-156

    • DOI

      10.1246/cl.210668

    • NAID

      130008161616

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Studies on The Application of The Paterno‐Buchi Reaction to The Synthesis of Novel Fluorinated Scaffolds2021

    • Author(s)
      Gomez Fernandez Mario Andres、Lefebvre Corentin、Sudau Alexander、Genix Pierre、Vors Jean‐Pierre、Abe Manabu、Hoffmann Norbert
    • Journal Title

      Chemistry A European Journal

      Volume: 27 Issue: 63 Pages: 15722-15729

    • DOI

      10.1002/chem.202102621

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Impact of Five-membered Heterocyclic Rings on Photophysical Properties Including Two-photon Absorption Character2021

    • Author(s)
      Pham Thuy Thi Thu、Chitose Youhei、Tam Tran Thi Thanh、Tseng Wei-Lun、Lin Tzu-Chau、Abe Manabu
    • Journal Title

      Chemistry Letters

      Volume: 50 Issue: 10 Pages: 1810-1813

    • DOI

      10.1246/cl.210420

    • NAID

      130008101919

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Remarks] The Research Group of Professor Dr. Manabu Abe

    • URL

      https://www.hiu-roc.com/

    • Related Report
      2021 Annual Research Report

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Published: 2020-08-03   Modified: 2025-01-30  

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