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Synthesis of inhibitors and fluorescence reagents for metallo-beta-lactamases

Research Project

Project/Area Number 17K08376
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Drug development chemistry
Research InstitutionKinjo Gakuin University

Principal Investigator

Kurosaki Hiromasa  金城学院大学, 薬学部, 教授 (70234599)

Co-Investigator(Kenkyū-buntansha) 福石 信之  金城学院大学, 薬学部, 教授 (70248326)
Project Period (FY) 2017-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords感染症 / β-タクタム剤 / 阻害剤 / 蛍光剤 / 薬剤耐性 / メタロ-β-ラクタマーゼ / 金属酵素 / β-ラクタム剤 / 加水分解酵素 / ストップトフロー法 / 細菌感染症 / 亜鉛酵素 / βーラクタマーゼ / 抗生物質 / βーラクタム / メタローβーラクタマーゼ / 薬剤耐性菌 / βーラクタム剤 / X線結晶構造解析 / 蛍光検出剤 / 薬学 / ラクタム剤
Outline of Final Research Achievements

The results obtained in this study are as follows. (1) We investigated the reaction of DansyclC4SH to IMP-1 typed- and IND-7 typed metallo-β-lactamases by fluorescence stopped-flow method. The uptake rate constants k+1 and the dissociation rate constants k-1 of DansylC4SH into IMP-1 typed and IND-7 typed metallo-β-lactamases are were 0.863 μM-1 s-1, 0.057 s-1 and 0.06 μM-1 s-1, 0.085 s-1, respectively.
(2) Using the fluorescent agent DanylC4SH, we observed the difference in fluorescence intensity when the abundance ratio of IMP-1 typed metallo-β-lactamase-producing and non-producing bacteria was changed. As a result, DansylC4SH showed stronger fluorescence in the IMP-1 typed metallo-β-lactamase-producing strain than in the IMP-1 typed metallo-β-lactamase non-producing strain.

Academic Significance and Societal Importance of the Research Achievements

本研究課題はこれまで臨床の現場で問題となっているメタロ-β-ラクタマーゼの阻害剤とメタロ-β-ラクタマーゼ産生菌の蛍光検出法開発を目指す研究であり、本研究で得られた成果は学術的な意義があると考えている。現在、カルバペネム耐性腸内細菌による感染症が増加し、切り札的な抗菌剤に対しても耐性を獲得するに至っている。本研究目的のメタロ-β-ラクタマーゼの阻害剤と蛍光剤の開発は、深刻化している薬剤耐性菌感染症の防止・対策と阻害剤や臨床検査システム開発に直結する点で、社会貢献性が高いと言える。

Report

(7 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (9 results)

All 2023 2022 2021 2019

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 2 results) Presentation (4 results)

  • [Journal Article] Artificial helix supramolecule by doubly p-xylyl bridged bis(ZnII-cyclen) (cyclen = 1,4,7,10-tetraazacyclododecane)2023

    • Author(s)
      Ichimaru Yoshimi、Kato Koichi、Sugiura Kirara、Isomura Risa、Fujioka Haruto、Koike Tohru、Fujii-Kishida Sayuri、Kurihara Masaaki、Yamaguchi Yoshihiro、Jin Wanchun、Imai Masanori、Kurosaki Hiromasa
    • Journal Title

      Inorganic Chemistry Communications

      Volume: 153 Pages: 110782-110782

    • DOI

      10.1016/j.inoche.2023.110782

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Difference in the Inhibitory Effect of Thiol Compounds and Demetallation Rates from the Zn(II) Active Site of Metallo-β-lactamases (IMP-1 and IMP-6) Associated with a Single Amino Acid Substitution2022

    • Author(s)
      Yamaguchi Yoshihiro、Kato Koichi、Ichimaru Yoshimi、Uenosono Yuya、Tawara Sakiko、Ito Rio、Matsuse Natsuki、Wachino Jun-ichi、Toma-Fukai Sachiko、Jin Wanchun、Arakawa Yoshichika、Otsuka Masami、Fujita Mikako、Fukuishi Nobuyuki、Sugiura Kirara、Imai Masanori、Kurosaki Hiromasa
    • Journal Title

      ACS Infectious Diseases

      Volume: 9 Issue: 1 Pages: 65-78

    • DOI

      10.1021/acsinfecdis.2c00395

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Bis(nitrato-κO)(1,4,8,11-tetraazacyclotetradecane-κ4N)zinc(II) methanol monosolvate2022

    • Author(s)
      Ichimaru Yoshimi、Kato Koichi、Kurihara Masaaki、Jin Wanchun、Koike Tohru、Kurosaki Hiromasa
    • Journal Title

      IUCrData

      Volume: 7 Issue: 8 Pages: 220854-220863

    • DOI

      10.1107/s2414314622008549

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Crystal Structure of Bis{1,3-bis[bis(pyridin-2-ylmethyl)amino]propan-​2-olato-dizinc(II)}orthophosphate Tris(perchlorate) Octahydrate, [(Phos-tag)<sub>2</sub>-PO<sub>4</sub><sup>3−</sup>][ClO<sub>4</sub><sup>−</sup>]<sub>3</sub>·8H<sub>2</sub>O2021

    • Author(s)
      Ichimaru Yoshimi、Kato Koichi、Jin Wanchun、Sugiura Kirara、Kinoshita-Kikuta Emiko、KINOSHITA Eiji、Kurosaki Hiromasa、Koike Tohru
    • Journal Title

      X-ray Structure Analysis Online

      Volume: 37 Issue: 0 Pages: 87-88

    • DOI

      10.2116/xraystruct.37.87

    • NAID

      130008127785

    • ISSN
      1883-3578
    • Year and Date
      2021-12-10
    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Crystal Structures of Metallo-β-Lactamase (IMP-1) and Its D120E Mutant in Complexes with Citrate and the Inhibitory Effect of the Benzyl Group in Citrate Monobenzyl Ester2021

    • Author(s)
      Yamaguchi Yoshihiro、Kato Koichi、Ichimaru Yoshimi、Jin Wanchun、Sakai Misa、Abe Miki、Wachino Jun-ichi、Arakawa Yoshichika、Miyagi Yukina、Imai Masanori、Fukuishi Nobuyuki、Yamagata Yuriko、Otsuka Masami、Fujita Mikako、Kurosaki Hiromasa
    • Journal Title

      Journal of Medicinal Chemistry

      Volume: 64 Issue: 14 Pages: 10019-10026

    • DOI

      10.1021/acs.jmedchem.1c00308

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Presentation] UPLC/MSによる16S rRNA メチル基転移酵素によってメチル化されたグアノシン検出法の開発2019

    • Author(s)
      玉寄裕也、山田聖、石井亮太郎、北村祐介、井原俊博、和知野純一、荒川宣親、黒崎博雅、山口佳宏
    • Organizer
      第19回日本蛋白質科学会年会
    • Related Report
      2019 Research-status Report
  • [Presentation] メタロ-β-ラクタマーゼに対する3-ホルミルクロモン誘導体の阻害効果2019

    • Author(s)
      筑紫奈美、泉昂季、汪若愚、石川吉伸、和知野純一、荒川宜親、黒崎博雅、山口佳宏
    • Organizer
      第19回日本蛋白質科学会年会
    • Related Report
      2019 Research-status Report
  • [Presentation] 亜鉛型βラクタム剤分解酵素のアミノ酸一変異による構造およびZn結合能への影響2019

    • Author(s)
      俵紗季子、松瀬奈月、伊東理生、藤間祥子、山縣ゆり子、和知野純一、荒川宜親、黒崎博雅、山口佳宏
    • Organizer
      第19回日本蛋白質科学会年会
    • Related Report
      2019 Research-status Report
  • [Presentation] メタロ-β-ラクタマーゼ(KHM-1)のセフェム系β-ラクタム剤に対する高効率触媒機構の解明2019

    • Author(s)
      上之薗優也、伊東理生、藤田美歌子、藤間祥子、清水伸隆、山縣ゆり子、切替照雄、黒崎博雅、山口佳宏
    • Organizer
      第19回日本蛋白質科学会年会
    • Related Report
      2019 Research-status Report

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Published: 2017-04-28   Modified: 2024-01-30  

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