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Development of a trace detection method based on monoclonal antibodies recognizing Carribbean ciguatoxin.

Research Project

Project/Area Number 19K05717
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 37020:Chemistry and chemical methodology of biomolecules-related
Research InstitutionOsaka Prefecture University

Principal Investigator

Tsumuraya Takeshi  大阪府立大学, 理学(系)研究科(研究院), 教授 (00372855)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywordsシガトキシン / シガテラ / モノクローナル抗体 / ハプテン / ナトリウムチャネル / 電位依存性ナトリウムチャネル / ハイブリドーマ / 抗原 / 海洋毒 / サンドイッチELISA / 渦鞭毛藻
Outline of Research at the Start

カリブ海型シガトキシン(C-CTX)は,米国大西洋やカリブ海域におけるシガテラ食中毒の主要原因毒素であり、これまでに知られている太平洋型シガトキシン(P-CTX)と比べて複雑な構造を有する。C-CTXの予防には,魚類からのC-CTXの微量検出法を確立することが必要であるが、そのためにはC-CTXを特異的に認識する抗体の作製が必須である。本研究では、低分子ハプテンを免疫することによるC-CTXを特異的に認識する抗体の作製およびこれを用いた微量検出法の開発を目的とする。本研究の成果は、近年地球規模で大きな脅威となりつつあるシガテラ食中毒の予防と撲滅に貢献する。

Outline of Final Research Achievements

The purpose of this study was to establish a method for the trace detection of C-CTX using monoclonal antibodies that recognize Caribbean ciguatoxin (C-CTX), the major causative toxin of ciguatera food poisoning in the U.S. Atlantic and Caribbean seas. The hapten consisting of the right five rings of C-CTX was designed and synthesized, and was immunized to provide a monoclonal antibody 4H5. The monoclonal antibody 4H5 was found to bind strongly to C-CTX. Similarly, we designed and synthesized a hapten consisting of the right five rings of C-CTX, immunized mice with the hapten, and obtained monoclonal antibodies, but none of them bound to the hapten itself. Further improvement of the hapten structure is currently under investigation.

Academic Significance and Societal Importance of the Research Achievements

本研究では、これまでの研究代表者の抗P-CTXモノクローナル抗体に関する研究成果の蓄積を踏まえ、C-CTXの部分構造化合物をハプテンとして用いたC-CTXを特異的に認識するモノクローナル抗体の作製とこれを用いた微量検出法への応用に取り組み、世界規模の驚異となりつつあるシガテラ中毒の予防、撲滅に貢献することを目的とする。現在までに、C-CTXを認識するモノクローナル抗体は全く得られていないことから、今回の研究でC-CTXを特異的に認識するモノクローナル抗体が得られれば、C-CTXの微量検出のみならず抗体を用いたシガテラ食中毒の治療(抗体医薬)への展開などが考えられる。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (22 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (5 results) Journal Article (7 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 7 results,  Open Access: 6 results) Presentation (10 results) (of which Int'l Joint Research: 7 results,  Invited: 3 results)

  • [Int'l Joint Research] University of Vigo/IRTA(スペイン)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] University of Udine/University of Trieste(イタリア)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] IRTA/Universita Rovira i Virgili/University of Vigo(スペイン)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] University of Washington/FDA(米国)

    • Related Report
      2020 Research-status Report
  • [Int'l Joint Research] IRTA/Universitat Rovira i Virgili(スペイン)

    • Related Report
      2019 Research-status Report
  • [Journal Article] Electrochemical biosensor for the dual detection of Gambierdiscus australes and Gambierdiscus excentricus in field samples. First report of G. excentricus in the Balearic Islands2022

    • Author(s)
      Greta Gaiani, Francesca Cucchi, Anna Toldra, Karl B. Andree, Maria Rey, Takeshi Tsumuraya, Ciara K. O'Sullivan, Jorge Diogene, Monica Campas
    • Journal Title

      Science of The Total Environment

      Volume: 806 Pages: 150915-150915

    • DOI

      10.1016/j.scitotenv.2021.150915

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A smartphone-controlled amperometric immunosensor for the detection of Pacific ciguatoxins in fish2022

    • Author(s)
      Monica Campas, Sandra Leonardo, Naomasa Oshiro, Kyoko Kuniyoshi, Takeshi Tsumuraya, Masahiro Hirama, Jorge Diogene
    • Journal Title

      Food Chemistry

      Volume: 374 Pages: 131687-131687

    • DOI

      10.1016/j.foodchem.2021.131687

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Chemical Modification of Phage‐Displayed Helix‐Loop‐Helix Peptides to Construct Kinase‐Focused Libraries2021

    • Author(s)
      Fujiwara Daisuke、Mihara Kousuke、Takayama Ryo、Nakamura Yusuke、Ueda Mitsuhiro、Tsumuraya Takeshi、Fujii Ikuo
    • Journal Title

      ChemBioChem

      Volume: 22 Issue: 24 Pages: 3406-3409

    • DOI

      10.1002/cbic.202100450

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Further Advance of Gambierdiscus Species in the Canary Islands, with the First Report of Gambierdiscus belizeanus2020

    • Author(s)
      Tudo Angels、Gaiani Greta、Rey Varela Maria、Tsumuraya Takeshi、Andree Karl B.、Fern?ndez-Tejedor Margarita、Campos Monica、Diogene Jorge
    • Journal Title

      Toxins

      Volume: 12 Issue: 11 Pages: 692-692

    • DOI

      10.3390/toxins12110692

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Rapid detection of ciguatoxins in Gambierdiscus and Fukuyoa with immunosensing tools2020

    • Author(s)
      Gaiani G.、Leonardo S.、Tudo A.、Toldra A.、Rey M.、Andree K.B.、Tsumuraya T.、Hirama M.、Diogene J.、O'Sullivan C.K.、Alcaraz C.、Campos M.
    • Journal Title

      Ecotoxicology and Environmental Safety

      Volume: 204 Pages: 111004-111004

    • DOI

      10.1016/j.ecoenv.2020.111004

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Addressing the Analytical Challenges for the Detection of Ciguatoxins Using an Electrochemical Biosensor2020

    • Author(s)
      Sandra Leonardo, Greta Gaiani, Takeshi Tsumuraya, Masahiro Hirama, Jean Turquet, Nuria Sagrista, Maria Rambla-Alegre, Cintia Flores, Josep Caixach, Jorge Diogene, Ciara K. O’Sullivan, Carles Alcaraz, and Monica Campas
    • Journal Title

      Analytical Chemistry

      Volume: 92 Issue: 7 Pages: 4858-4865

    • DOI

      10.1021/acs.analchem.9b04499

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Rationally Designed Synthetic Haptens to Generate Anti-Ciguatoxin Monoclonal Antibodies, and Development of a Practical Sandwich ELISA to Detect Ciguatoxins2019

    • Author(s)
      Takeshi Tsumuraya and Masahiro Hirama
    • Journal Title

      Toxins

      Volume: 11 Issue: 9 Pages: 533-533

    • DOI

      10.3390/toxins11090533

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Detection of Ciguatoxins based on anti-Ciguatoxin Monoclonal Antibodies2021

    • Author(s)
      Takeshi Tsumuraya
    • Organizer
      International Chemical Congress of Pacific Basin Societies (Pacifichem) 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] A novel receptor binding assay of ciguatoxins using a near-infrared fluorescent ligand2021

    • Author(s)
      Toshiaki Yokozeki, Tomoji Igarashi, Takeshi Yasumoto, Takeshi Tsumuraya
    • Organizer
      International Chemical Congress of Pacific Basin Societies (Pacifichem) 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Cell immunolocalization of ciguatoxins in the benthic dinoflagellate Gambierdiscus australes Chinian and M. A. Faust2021

    • Author(s)
      Giorgia Honsell, Monica Campas, Greta Gaiani, Takeshi Tsumuraya, Masahiro Hirama, Aurelia Tubaro, Marco Pelin
    • Organizer
      International Conference on Hamful Algae 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Smart biosensors for the detection of ciguatoxins2021

    • Author(s)
      M. Campas, G. Gaiani, S. Leonardo, M. Rambla-Alegre, C. Alcaraz, T. Tsumuraya, M. Hirama, N. Oshiro, C. K. O’Sullivan, J. Diogene
    • Organizer
      International Conference on Hamful Algae 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Smartphone-based electrochemical immunosensor for ciguatoxins detection2021

    • Author(s)
      Sandra Loonardo, Takeshi Tsumuraya, Oshiro Naomasa, Masahiro Hirama, Jorge Digene, Monica Campas
    • Organizer
      1st Intenational Electronic Conference on Toxins
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Detection of ciguatoxins in fish and algal samples with an electrochemical biosensor2021

    • Author(s)
      Greta Gaiani, Sandra Leonardo, Takeshi Tsumuraya, Maria Rambla, Jorge Digene, Ciara Kathleen O'Sullivan, Carles Alcaraz, Monica Campas
    • Organizer
      1st Intenational Electronic Conference on Toxins
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 有機合成化学との連携による海洋毒認識モノクローナル抗体の作製と微量検出法の開発2021

    • Author(s)
      円谷 健
    • Organizer
      バイオインタラクション研究会第12回ワークショップ
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Development of a Practical Sandwich ELISA to Detect Ciguatoxins2020

    • Author(s)
      Takeshi Tsumuraya
    • Organizer
      EUROCIUGA INTERNATIONAL WORKSHOP 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] レセプターバインディングアッセイによるシガトキシン検出のための新規蛍光ブレベトキシンの作製2020

    • Author(s)
      横関俊昭、円谷健、藤田和弘、五十嵐友二、安元健
    • Organizer
      第116回日本食品衛生学会学術講演会
    • Related Report
      2020 Research-status Report
  • [Presentation] ELISAによるシガトキシンの検出2019

    • Author(s)
      伊藤史織,國吉杏子,大野祐美,岩屋あまね,佐久川さつき, 小島尚,円谷健,平間正博,安元健,大城直雅,朝倉宏
    • Organizer
      食品衛生学会第115回学術講演会
    • Related Report
      2019 Research-status Report

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Published: 2019-04-18   Modified: 2023-01-30  

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