• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Development of a novel antibacterial agent aiming at reducing the emergence of new drug-resistant bacteria

Research Project

Project/Area Number 19K05837
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 38040:Bioorganic chemistry-related
Research InstitutionTohoku University

Principal Investigator

Enomoto Masaru  東北大学, 農学研究科, 准教授 (90546342)

Co-Investigator(Kenkyū-buntansha) 米山 裕  東北大学, 農学研究科, 教授 (10220774)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
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: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsドラッグデリバリー / monensin / S. aureus / 黄色ブドウ球菌 / DDS / ペプチド / 薬剤耐性菌 / 抗菌剤 / ポリエーテル
Outline of Research at the Start

申請者は,家畜飼料添加物に最も使用されているポリエーテル系抗生物質の標的部位と作用機構に着目し,「ミサイル化」と「二量化」の2種類の戦略を合わせることで,特異性と抗菌活性が向上した抗菌剤創出に取り組む。まず,病原菌に特異的に結合するペプチドと抗生物質を連結してミサイル化することで特異性を高める。これにより,薬剤耐性菌出現リスクを低減する。さらに,二量化によりポリエーテル系抗生物質のイオノフォアとしての機能を向上させて,少ない使用量でも十分な効果が期待できる抗菌剤を創出する。

Outline of Final Research Achievements

This research aimed to develop new antimicrobial agents with low risk of drug resistance by linking a peptide specific for Staphylococcus aureus with a biologically active natural product (monensin). So far, we have succeeded in synthesizing its derivative that is 8 times more potent in antibacterial activity than monensin itself. On the peptide side, through a search with a collaborator, we have found a peptide sequence with high adsorption ability against S. aureus. We believe that the coupling of the peptide with the monensin derivative will enable the creation of specific antimicrobial agents for S. aureus.
In addition, with the application of this concept in mind, we have also conducted synthetic studies of several natural products and succeeded in the total synthesis of natural products such as ktedonoketone and rossinones.

Academic Significance and Societal Importance of the Research Achievements

薬剤耐性菌発生の主要因として抗生物質の過剰使用が挙げられる。抗生物質の使用対象でもっとも多いのはヒトではなく家畜であり,その用途は治療目的のみにとどまらず,健康な家畜の増体を目的とした飼料添加にまで及ぶ。これにより,畜産現場では抗生物質が過剰に使用され,薬剤耐性菌発生の温床になってい る。飼料添加剤としてもっとも汎用される抗生物質の一つがmonensinである。このものを特定の病原菌に特異的に輸送することができれば,他の菌に対する選択圧を下げることができるので,薬剤耐性菌発生リスクの低減が期待できる。本研究成果が薬剤耐性菌出現リスクの低い家畜用新規抗菌剤の開発の一助となることを期待したい。

Report

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

    (44 results)

All 2022 2021 2020 2019 Other

All Journal Article (14 results) (of which Peer Reviewed: 13 results) Presentation (28 results) (of which Int'l Joint Research: 5 results,  Invited: 4 results) Remarks (2 results)

  • [Journal Article] Asymmetric total synthesis of (?)-rossinone A2021

    • Author(s)
      Saito Katsuya、Kurasawa Kazuki、Takino Chiaki、Kuwahara Shigefumi、Enomoto Masaru
    • Journal Title

      Tetrahedron Letters

      Volume: 84 Pages: 153456-153456

    • DOI

      10.1016/j.tetlet.2021.153456

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Semipinacol rearrangement of a bicyclo[7.2.0]undecane framework into a bicyclo[6.3.0]undecane skeleton: a model study on the biosynthesis of seiridiasteriscane A2021

    • Author(s)
      Ishibashi Osamu、Nishiyama Mami、Kwon Eunsang、Hashimoto Masaru、Kuwahara Shigefumi、Enomoto Masaru
    • Journal Title

      Bioscience, Biotechnology, and Biochemistry

      Volume: 85 Issue: 7 Pages: 1621-1627

    • DOI

      10.1093/bbb/zbab083

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Recent advances in the total syntheses of indole diterpenoids2021

    • Author(s)
      Masaru Enomoto
    • Journal Title

      Bioscience, Biotechnology, and Biochemistry

      Volume: 85 Issue: 1 Pages: 13-23

    • DOI

      10.1093/bbb/zbaa061

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Unexpected reversal of stereochemistry observed in the addition of methallyltrimethylsilane to a chiral α-keto imide2021

    • Author(s)
      Sayaka Ishii, Katsuya Saito, Shigefumi Kuwahara, Masaru Enomoto
    • Journal Title

      Bioscience, Biotechnology, and Biochemistry

      Volume: 85 Issue: 3 Pages: 488-492

    • DOI

      10.1093/bbb/zbaa086

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Synthesis of a plasmenylethanolamine2021

    • Author(s)
      Satoshi Maeda, Tomoyo Mohri, Tsubasa Inoue, Yoshio Asano, Yurika Otoki, Masaru Enomoto, Kiyotaka Nakagawa, Shigefumi Kuwahara, Yusuke Ogura
    • Journal Title

      Bioscience, Biotechnology, and Biochemistry

      Volume: 85 Issue: 6 Pages: 1383-1389

    • DOI

      10.1093/bbb/zbab037

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Total synthesis of terfestatins a and B2020

    • Author(s)
      Shun Sugawara, Yasuhiro Meguro, Shuntaro Sato, Masaru Enomoto, Yusuke Ogura, Shigefumi Kuwahara
    • Journal Title

      Tetrahedron Letters

      Volume: 61 Issue: 21 Pages: 151891-151891

    • DOI

      10.1016/j.tetlet.2020.151891

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Synthesis of (S)-ktedonoketone2020

    • Author(s)
      Sayaka Ishii, Katsuya Saito, Shigefumi Kuwahara, Masaru Enomoto
    • Journal Title

      Tetrahedron Letters

      Volume: 61 Issue: 22 Pages: 151915-151915

    • DOI

      10.1016/j.tetlet.2020.151915

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] DFT supported structural elucidations of seiridiasteriscane A, unique 15-norasteriscane and novel pestalotiopsin Congeners from Seiridium sp. KT39572020

    • Author(s)
      Wilanfranco C. Tayone, Mami Nishiyama, Kazuaki Tanaka, Maeda Hayato, Masaru Enomoto, Masaru Hashimoto
    • Journal Title

      Tetrahedron Letters

      Volume: 76 Issue: 20 Pages: 131197-131197

    • DOI

      10.1016/j.tet.2020.131197

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Microwave-Assisted Heating Reactions of N-Acetylglucosamine (GlcNAc) in Sulfolane as a Method Generating 1,6-Anhydrosugars Consisting of Amino Monosaccharide Backbones2020

    • Author(s)
      Harumi Kaga, Masaru Enomoto, Hiroki Shimizu, Izuru Nagashima, Keigo Matsuda, Seigou Kawaguchi, Atsushi Narumi
    • Journal Title

      Molecules

      Volume: 25 Issue: 8 Pages: 1944-1944

    • DOI

      10.3390/molecules25081944

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] 推定生合成機構を模倣した天然物の全合成2020

    • Author(s)
      榎本 賢
    • Journal Title

      化学工業

      Volume: 71 Pages: 92-98

    • Related Report
      2019 Research-status Report
  • [Journal Article] Synthesis of the N‐Acyl Amycolose Moiety of Amycolamicin and Its Methyl Glycosides2019

    • Author(s)
      Yasuhiro Meguro, Yusuke Ogura, Masaru Enomoto, Shigefumi Kuwahara
    • Journal Title

      The Journal of Organic Chemistry

      Volume: 84 Issue: 11 Pages: 6110-6116

    • DOI

      10.1021/acs.joc.9b00650

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Ktedonoketone and 2’-oxosattabacin, benzenoid metabolites from a thermophilic bacterium Thermosporothrix hazakensis in the phylum Chloroflexi2019

    • Author(s)
      Igarashi Yasuhiro、Yamamoto Kazuki、Ueno Chiaki、Yamada Nodoka、Saito Katsuya、Takahashi Kazuki、Enomoto Masaru、Kuwahara Shigefumi、Oikawa Tsutomu、Tashiro Etsu、Imoto Masaya、Xiaohanyao Ye、Zhou Tao、Harunari Enjuro、Oku Naoya
    • Journal Title

      The Journal of Antibiotics

      Volume: 72 Issue: 9 Pages: 653-660

    • DOI

      10.1038/s41429-019-0195-7

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Unified Total Synthesis of Hetiamacins A-D2019

    • Author(s)
      Shogo Tsukaguchi, Masaru Enomoto,* Ryo Towada, Yusuke Ogura, Shigefumi Kuwahara*
    • Journal Title

      European Journal of Organic Chemistry

      Volume: 2019 Issue: 35 Pages: 6110-6116

    • DOI

      10.1002/ejoc.201901114

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Journal Article] Total Synthesis of Diocollettines A via an Acid-Promoted Oxa-Michael-Aldol-Acetalization Cascade2019

    • Author(s)
      Misaki Kawamoto, Shuntaro Sato, Masaru Enomoto, Yusuke Ogura, Shigefumi Kuwahara
    • Journal Title

      Organic Letters

      Volume: 21 Issue: 24 Pages: 10099-10101

    • DOI

      10.1021/acs.orglett.9b04074

    • Related Report
      2019 Research-status Report
    • Peer Reviewed
  • [Presentation] 南極産ホヤ由来メロテルペンrossionone Bの生合成模倣合成2022

    • Author(s)
      齋藤 克哉, 倉沢 一輝, 滝野 ちあき, 桑原 重文, 榎本 賢
    • Organizer
      日本農芸化学会2022年度大会(京都)
    • Related Report
      2021 Annual Research Report
  • [Presentation] Biomimetic chemical transformation of pestalotiopsin B into a seiridiasteriscane skelton2021

    • Author(s)
      Osamu Ishibashi, Mami Nishiyama, Eunsang Kwon, Masaru Hashimoto, Shigefumi Kuwahara, Masaru Enomoto
    • Organizer
      2021 International Chemical Congress of Pacific Basin Societies (Pacifichem 2021)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 南極産ホヤ由来メロテルペンRossinone Bの生合成模倣合成2021

    • Author(s)
      齋藤克哉, 倉沢一輝, 滝野ちあき, 桑原重文, 榎本賢
    • Organizer
      第65回 香料・テルペンおよび精油化学に関する討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 特異な複素環構造をもつ天然有機化合物の全合成2021

    • Author(s)
      榎本賢
    • Organizer
      日本農芸化学会東北支部 第156 回大会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Macrotermycin A の全合成研究2021

    • Author(s)
      半澤瑛一, 目黑康洋, 武田圭太, 榎本賢, 桑原重文
    • Organizer
      日本農芸化学会東北支部 第156 回大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Alchivemycin 類の全合成研究: 新奇複素環構造の構築2021

    • Author(s)
      石橋理, 杉本浩平, 桑原重文, 榎本賢
    • Organizer
      日本農芸化学会東北支部 第156 回大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 有機合成化学的アプローチによる seiridiasteriscane A の生合成に関するモデル研究2021

    • Author(s)
      石橋 理, 西山 真未, 權 垠相, 橋本 勝, 桑原 重文, 榎本 賢
    • Organizer
      第63回 天然有機化合物討論会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Bioinspired total synthesis of rossinone B, a bioactive meroterpenoid isolated from an Antarctic ascidian2021

    • Author(s)
      Katsuya Saito, Kazuki Kurasawa, Chiaki Takino, Shigefumi Kuwahara, Masaru Enomoto
    • Organizer
      International Summer Seminar on Organic Chemistry (SSOCJ, Tohoku branch)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Model study on the biosynthesis of seiridiasteriscane2021

    • Author(s)
      Osamu Ishibashi, Mami Nishiyama, Eunsang Kwon, Masaru Hashimoto, Shigefumi Kuwahara, Masaru Enomoto
    • Organizer
      International Summer Seminar on Organic Chemistry (SSOCJ, Tohoku branch)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Quorum sensing 阻害物質 Aculene 類の全合成研究2021

    • Author(s)
      横川陽向, 石澤誠也, 齋藤克哉, 桑原重文, 榎本賢
    • Organizer
      第32回万有仙台シンポジウム
    • Related Report
      2021 Annual Research Report
  • [Presentation] 推定生合成経路を模倣したpestalotiopsin Bからseiridiasteriscane骨格への合成化学的変換2021

    • Author(s)
      石橋 理, 西山 真未, 權 垠相, 橋本 勝, 桑原 重文, 榎本 賢
    • Organizer
      日本農芸化学会2021年度大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 南極産ホヤ由来メロテルぺンrossinone Aの全合成2021

    • Author(s)
      齋藤 克哉, 倉沢 一輝, 滝野 ちあき, 桑原 重文, 榎本 賢
    • Organizer
      日本農芸化学会2021年度大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Quorumsensing阻害物質aculene Dの全合成2021

    • Author(s)
      横川 陽向, 石澤 誠也, 齋藤 克哉, 桑原 重文, 榎本 賢
    • Organizer
      日本農芸化学会2021年度大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 6-Hydroxyterrefuranoneの全合成と立体化学の解明2021

    • Author(s)
      岡 悠介, 髙橋 和暉, 桑原 重文, 榎本 賢
    • Organizer
      日本農芸化学会2021年度大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Synthetic studies of bioactive natural products via bioinspired strategies2020

    • Author(s)
      榎本賢
    • Organizer
      化学系学協会東北大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 南極産ホヤ由来メロテルペンRossinone類の合成研究2020

    • Author(s)
      齋藤克哉, 倉沢一輝, 滝野ちあき, 桑原重文, 榎本賢
    • Organizer
      日本農芸化学会東北支部 第155回大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Quorumsensing阻害化合物aculene類の全合成研究2020

    • Author(s)
      横川陽向, 石澤誠也, 齋藤克哉, 桑原重文, 榎本賢
    • Organizer
      日本農芸化学会東北支部 第155回大会
    • Related Report
      2020 Research-status Report
  • [Presentation] 特異な複素環構造と有用な生物活性を示す天然有機化合物の合成研究2020

    • Author(s)
      榎本 賢
    • Organizer
      日本農芸化学会2021年度大会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 南極産ホヤ由来メロテルペンRossinone 類の合成研究2020

    • Author(s)
      齋藤克哉, 倉沢一輝, 滝野ちあき, 桑原重文, 榎本賢
    • Organizer
      日本農芸化学会2020年度大会
    • Related Report
      2019 Research-status Report
  • [Presentation] クォラムセンシング阻害物質 aculene 類の合成研究2020

    • Author(s)
      横川陽向, 石澤誠也, 齋藤克哉, 桑原重文, 榎本賢
    • Organizer
      日本農芸化学会2020年度大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 推定生合成機構を模倣した天然物合成2020

    • Author(s)
      榎本賢, 倉沢一輝, 高橋和暉, 權垠相, 桑原重文
    • Organizer
      日本農芸化学会2020年度大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 推定生合成経路を模倣したAgelamadin Cの合成研究2019

    • Author(s)
      高橋和暉 , 桑原重文 , 榎本賢
    • Organizer
      第115回有機合成シンポジウム
    • Related Report
      2019 Research-status Report
  • [Presentation] Synthetic studies on rossinones2019

    • Author(s)
      Katsuya Saito, Kazuki Kurasawa, Chiaki Takino, Shigefumi Kuwahara, Masaru Enomoto
    • Organizer
      Tohoku University’s Chemistry Summer School
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] (-)-sinensilactam Aの全合成研究2019

    • Author(s)
      小宅真理, 佐藤俊太郎, 小倉由資, 榎本賢, 桑原重文
    • Organizer
      第63回香料・テルペンおよび精油化学に関する討論会
    • Related Report
      2019 Research-status Report
  • [Presentation] Amycolamicinの全合成研究2019

    • Author(s)
      目黒康洋, 小倉由資, 榎本賢, 桑原重文
    • Organizer
      第116回有機合成シンポジウム
    • Related Report
      2019 Research-status Report
  • [Presentation] 推定生合成経路に基づくAgelamadin Cの合成研究2019

    • Author(s)
      高橋和暉, 桑原重文, 榎本賢
    • Organizer
      日本農芸化学会東北支部第154回大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 複素環構造を含む天然物の全合成研究2019

    • Author(s)
      榎本賢
    • Organizer
      第6回天然物化学研究会シンポジウム
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Synthetic Study of Biologically Active Heterocyclic Natural Products2019

    • Author(s)
      Masaru Enomoto
    • Organizer
      The International Symposium of Health Care Technology, Drug Discovery and Chemical Biology (IHDC
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research / Invited
  • [Remarks] 東北大学農学研究科生物有機化学分野

    • URL

      https://www.agri.tohoku.ac.jp/yuuki/seibutsuyuki/index.html

    • Related Report
      2021 Annual Research Report
  • [Remarks] 東北大学 大学院農学研究科 生物有機化学分野

    • URL

      https://www.agri.tohoku.ac.jp/yuuki/seibutsuyuki/index.html

    • Related Report
      2019 Research-status Report

URL: 

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

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi