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Development of a chasing type antimicrobial using bacteriophage

Research Project

Project/Area Number 18K15149
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 49050:Bacteriology-related
Research InstitutionJichi Medical University

Principal Investigator

Kiga Kotaro  自治医科大学, 医学部, 講師 (90738246)

Project Period (FY) 2018-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywordsバクテリオファージ / 抗菌治療 / ファージ療法 / CRISPR-Cas / 薬剤耐性菌 / 細菌 / 免疫 / 遺伝子工学
Outline of Final Research Achievements

Drug-resistant bacteria are spreading on a global scale and threatening human health. Nevertheless, the development of antimicrobials has been stalled, so there is a need to take a different approach to developing antimicrobials. In this study, we focused on a virus that infects bacteria called bacteriophages (phages), because they have an ability to inject DNA into host bacteria. Taking advantage of this function, we succeeded to inject an antimicrobial substance called CRISPR-Cas13 into the bacteria. Phages carrying CRISPR-Cas13 significantly improved the lethality of E. coli-infected Galleria mellonella larvae. We will develop Cas13-carrying phage as a candidate for a new antibacterial drug in the future.

Academic Significance and Societal Importance of the Research Achievements

抗菌薬が効かない薬剤耐性菌は世界規模で広がり、既存の抗菌薬で対処することが難しくなってきた。すでに欧米では、バクテリオファージ(ファージ)という細菌に感染するウイルスを利用した抗菌治療が進められている。本研究では、ファージを遺伝子改変することで、より効果的な抗菌治療を目指した。実際に我々は、抗菌性の遺伝子をファージに搭載することで、狙った細菌を殺菌することに成功した。この抗菌ファージは既存の抗菌薬とは殺菌機構が異なるため、薬剤耐性菌にも効果があることがわかった。

Report

(3 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • Research Products

    (14 results)

All 2020 2019 Other

All Journal Article (7 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 6 results,  Open Access: 5 results) Presentation (5 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results) Book (1 results) Remarks (1 results)

  • [Journal Article] Development of CRISPR-Cas13a-based antimicrobials capable of sequence-specific killing of target bacteria2020

    • Author(s)
      Kotaro Kiga、Xin-Ee Tan、Rodrigo Ibarra-Chavez、Shinya Watanabe、Yoshifumi Aiba、Yusuke Sato’o、Feng-Yu Li、Teppei Sasahara、Bintao Cui、Moriyuki Kawauchi、Tanit Boonsiri、Kanate Thitiananpakorn、Yusuke Taki、Aa Haeruman Azam、Masato Suzuki、Jose R Penades、Longzhu Cui
    • Journal Title

      Nature Communications

      Volume: -

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Mutational diversity in mutY deficient Helicobacter pylori and its effect on adaptation to the gastric environment.2020

    • Author(s)
      Kinoshita-Daitoku R, Kiga K, Sanada T, Ogura Y, Bo Z, Iida T, Yokomori R, Kuroda E, Tanaka M, Sood A, Suzuki T, Nakai K, Hayashi T, Mimuro H.
    • Journal Title

      Biochemical and Biophysical Research Communications

      Volume: 525 Issue: 3 Pages: 806-811

    • DOI

      10.1016/j.bbrc.2020.02.087

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Complete Genome Sequence of Helicobacter pylori Strain ATCC 43504, a Type Strain That Can Infect Gerbils2020

    • Author(s)
      Kinoshita-Daitoku Ryo、Ogura Yoshitoshi、Kiga Kotaro、Maruyama Fumito、Kondo Tomoyo、Nakagawa Ichiro、Hayashi Tetsuya、Mimuro Hitomi
    • Journal Title

      Microbiology Resource Announcements

      Volume: 9 Issue: 18

    • DOI

      10.1128/mra.00105-20

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Group A Streptococcus establishes pharynx infection by degrading the deoxyribonucleic acid of neutrophil extracellular traps.2020

    • Author(s)
      Tanaka M, Kinoshita-Daitoku R, Kiga K, Sanada T, Zhu B, Okano T, Aikawa C, Iida T, Ogura Y, Hayashi T, Okubo K, Kurosawa M, Hirahashi J, Suzuki T, Nakagawa I, Nangaku M, Mimuro H.
    • Journal Title

      Scientific Reports

      Volume: 10 Issue: 1 Pages: 3251-3251

    • DOI

      10.1038/s41598-020-60306-w

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Helicobacter small RNA regulates host adaptation and carcinogenesis.2020

    • Author(s)
      Kinoshita-Daitoku R、Kiga K、Otsubo R、Ogura Y、Sanada T、Bo Z、Phuoc TV、Okano T、Iida T、Yokomori R、Kuroda E、Hirukawa S、Tanaka M、Sood A、Subsomwong P、Ashida H、Binh TT、Nguyen LT、Van KV、Dung Ho DQ ... [Show all 25] ... Mimuro H
    • Journal Title

      BioRxiv

      Volume: -

    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Journal Article] Composition and Diversity of CRISPR-Cas13a Systems in the Genus Leptotrichia2019

    • Author(s)
      Watanabe Shinya、Cui Bintao、Kiga Kotaro、Aiba Yoshifumi、Tan Xin-Ee、Sato’o Yusuke、Kawauchi Moriyuki、Boonsiri Tanit、Thitiananpakorn Kanate、Taki Yusuke、Li Fen-Yu、Azam Aa Haeruman、Nakada Yumi、Sasahara Teppei、Cui Longzhu
    • Journal Title

      Frontiers in Microbiology

      Volume: 10 Pages: 2838-2838

    • DOI

      10.3389/fmicb.2019.02838

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Complete Genome Sequence of the Methicillin-Resistant Staphylococcus aureus Strain JMUB3031, Isolated from a Patient with Fatal Community-Acquired Pneumonia2019

    • Author(s)
      Bintao Cui, Shinya Watanabe, Yusuke Sato’o, Fumiya Nihashi, Yoshifumi Aiba, Kotaro Kiga, Teppei Sasahara, Xin-Ee Tan, Moriyuki Kawauchi, Tanit Boonsiri, Kanate Thitiananpakorn, Yusuke Taki, Feng-Yu Li, Shiro Imokawa, Longzhu Cui
    • Journal Title

      Microbiology Resource Announcements

      Volume: 8 Issue: 4 Pages: 1-2

    • DOI

      10.1128/mra.01652-18

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 遺伝子標的型ファージ製剤の開発2020

    • Author(s)
      氣駕 恒太朗, 崔 龍洙
    • Organizer
      第93回 日本細菌学会総会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 薬剤耐性菌を選択的に殺菌するファージ製剤の開発2019

    • Author(s)
      氣駕 恒太朗
    • Organizer
      第102回 日本細菌学会関東支部総会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] ファージを利用した遺伝子標的型殺菌剤の開発2019

    • Author(s)
      氣駕 恒太朗
    • Organizer
      日本細菌学会関東支部インターラボセミナー
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Developing bacteriophage-based antimicrobials for killing antimicrobial-resistant bacteria.2019

    • Author(s)
      Kotaro Kiga, XinEe Tan, Rodrigo Ibarra-Chavez, Jose R Penades, Longzhu Cui
    • Organizer
      Oxford phage 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 狙った細菌を選択的に殺菌する殺菌技術の開発2019

    • Author(s)
      氣駕 恒太朗, 李 峰宇, XinEe Tan, 佐藤 祐介, 渡邊 真弥, 相羽 由詞, Rodrigo Ibarra-Chavez, Jose R Penades, 鈴木 仁人, 崔 龍洙
    • Organizer
      第92回 日本細菌学会総会
    • Related Report
      2019 Annual Research Report
  • [Book] Precision Medicine2019

    • Author(s)
      氣駕恒太朗、崔龍洙
    • Total Pages
      5
    • Publisher
      北隆館
    • Related Report
      2018 Research-status Report
  • [Remarks] 自治医科大学医学部 感染・免疫学講座 細菌学部門 ホームページ

    • URL

      http://www.jichi.ac.jp/bacteriology/

    • Related Report
      2019 Annual Research Report

URL: 

Published: 2018-04-23   Modified: 2021-02-19  

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