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Remodeling of glycoconjugates in fish cells induced by the E. tarda infection

Research Project

Project/Area Number 19K06223
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 40040:Aquatic life science-related
Research InstitutionKagoshima University

Principal Investigator

Kazuhiro Shiozaki  鹿児島大学, 農水産獣医学域水産学系, 准教授 (70390896)

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: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2020: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2019: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
KeywordsEdwardsiela piscicida / 糖鎖 / 魚病 / シアル酸 / シアリダーゼ / シアル酸リアーゼ / CMPシアル酸合成酵素 / Edwardsiella tarda / Edardsiella tarda / 複合糖質
Outline of Research at the Start

一般に細胞表面の複合糖質は、細菌やウイルス、ホルモンなどの認識分子として機能することが知られている。その認識には糖鎖の種類や構造の特異性があり、細菌感染において糖鎖の構造変化は、病原性を決定する重要な制御因子である。しかしこれまで、魚病細菌の感染に関して、宿主細胞の糖鎖リモデリングとの関係について解析した例は少ない。
そこで本申請課題では、E. tardaの感染における宿主細胞の糖鎖リモデリングの機構を明らかにし、細胞感染におけるその意義について明らかにすることを目的とする。

Outline of Final Research Achievements

E. tarda is a fish disease bacterium that infects cultured fish, but the mechanism of infection remains unclear. In this project, we focused on the sugar chains on fish cells and bacteria, and analyzed the changes in sugar chain structure during bacterial infection. The results revealed that 1) E. tarda uses sugar chains on the host cell surface as ligands during infection, 2) excision of sialic acid is necessary for this process, and 3) free sialic acid is taken up by the bacteria and used for sialylation.

Academic Significance and Societal Importance of the Research Achievements

E. tardaは細胞内寄生細菌であり、生ワクチンが使用できない養殖現場において、その予防・治療法の開発が急務である。本課題では、E. tardaの感染制御にはバクテリアおよび宿主細胞におけるある特定の糖鎖構造が重要であることを明らかにした。この研究成果は、E.tarda感染の予防・治療において、糖鎖が標的分子となることを示しており、今後は糖鎖合成、および分解酵素の阻害剤などに応用の可能性が期待される。

Report

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

    (17 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (1 results) Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 6 results) Presentation (10 results)

  • [Int'l Joint Research] マラウィ科学技術大学(マラウイ)

    • Related Report
      2019 Research-status Report
  • [Journal Article] Enhancement of Edwardsiella piscicida infection, biofilm formation, and motility caused by N-acetylneuraminate lyase.2022

    • Author(s)
      Vo, KL., Tran, TN., Kubo, Y., Sahashi, D., Komatsu, M., Shiozaki, K.
    • Journal Title

      Glycoconj. J.

      Volume: - Issue: 3 Pages: 429-442

    • DOI

      10.1007/s10719-022-10045-z

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Host lactosylceramide enhances Edwardsiella tarda infection.2021

    • Author(s)
      Oishi, K., Morise, M., Vo, KL., Tran, TN., Sahashi, D., Ueda-Wakamatsu, R., Nishimura, W., Komatsu, M., Shiozaki, K.
    • Journal Title

      Cellular Microbiology

      Volume: 23 Issue: 9

    • DOI

      10.1111/cmi.13365

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Establishment and characterization of Neu1-knockout zebrafish and its abnormal clinical phenotypes2020

    • Author(s)
      Okada Keiji、Takase Ryo、Hamaoka Yurie、Honda Akinobu、Ikeda Asami、Hokazono Yoichiro、Maeda Yutaro、Hayasaka Oki、Kotani Tomonari、Komatsu Masaharu、Shiozaki Kazuhiro
    • Journal Title

      Biochemical Journal

      Volume: 477 Issue: 15 Pages: 2841-2857

    • DOI

      10.1042/bcj20200348

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Identification of novel fish sialidase genes responsible for KDN-cleaving activity2020

    • Author(s)
      Shiozaki Kazuhiro、Uezono Keiya、Hirai Go、Honda Akinobu、Minoda Masaya、Wakata Ryuta
    • Journal Title

      Glycoconjugate Journal

      Volume: 37 Issue: 6 Pages: 745-753

    • DOI

      10.1007/s10719-020-09948-6

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Novel Nile tilapia Neu1 sialidases: Molecular cloning and biochemical characterization of the sialidases Neu1a and Neu1b2020

    • Author(s)
      Honda Akinobu、Chigwechokha Petros Kingstone、Takase Ryo、Hayasaka Oki、Fujimura Koji、Kotani Tomonari、Komatsu Masaharu、Shiozaki Kazuhiro
    • Journal Title

      Gene

      Volume: 742 Pages: 144538-144538

    • DOI

      10.1016/j.gene.2020.144538

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Desialylation by Edwardsiella tarda is the initial step in the regulation of its invasiveness2019

    • Author(s)
      Vo Linh Khanh、Tsuzuki Toshiharu、Kamada-Futagami Yuko、Chigwechokha Petros Kingstone、Honda Akinobu、Oishi Kazuki、Komatsu Masaharu、Shiozaki Kazuhiro
    • Journal Title

      Biochemical Journal

      Volume: 476 Issue: 21 Pages: 3183-3196

    • DOI

      10.1042/bcj20190367

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] CMP-シアル酸合成酵素はEdwardsiella piscicidaの病原性を増強する2021

    • Author(s)
      Tran Thi Nhung、Vo Khanh Linh、小松正治、塩﨑一弘
    • Organizer
      第44回日本分子生物学会年会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Edwardsiella piscicidaにおけるシアリル化の亢進が病原性に与える影響2021

    • Author(s)
      Tran Thi Nhung、Vo khanh Linh、小松正治、塩﨑一弘
    • Organizer
      第40回日本糖質学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Involvement of N-acetylneuraminate lyase in Edwardsiella piscicida pathogenicity.2021

    • Author(s)
      Vo Khanh Linh、Tran Thi Nhung、小松正治、塩﨑一弘
    • Organizer
      第40回日本糖質学会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Edwardsiella piscicida のCMP-シアル酸合成酵素の生理機能解析2021

    • Author(s)
      Tran Thi Nhung、Vo Khanh Linh、佐橋 大地、小松 正治、塩﨑 一弘
    • Organizer
      令和2年度日本水産学会九州支部大会
    • Related Report
      2020 Research-status Report
  • [Presentation] A novel virulence factor: NanA sialidase and significance of the sialic acid metabolism in Edwardsiella tarda infection.2020

    • Author(s)
      Vo, L., Shiozaki, K
    • Organizer
      長崎大学-鹿児島大学・研究科学生交流ミニシンポジウム
    • Related Report
      2020 Research-status Report
  • [Presentation] KDN加水分解活性を表す魚類シアリダーゼ分子種の同定.2020

    • Author(s)
      塩崎一弘、本田晃伸、上薗慶也、平井 剛
    • Organizer
      第39回日本糖質学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] Edwardsiella tarda感染時における宿主シアリダーゼの発現変化とその意義.2020

    • Author(s)
      佐橋大地、大石一樹、Vo Khanh Linh、二神(鎌田)裕子、小松正治、塩崎一弘
    • Organizer
      43回日本分子生物学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] A novel virulence factor: NanA sialidase and significance of the sialic acid metabolism in Edwardsiella tarda infection.2019

    • Author(s)
      Vo Khanh Linh 、都築利治 、鎌田(二神)裕子 、大石一樹、佐橋大地 、小松正治 、塩崎一弘
    • Organizer
      第38回日本糖質学会年会
    • Related Report
      2019 Research-status Report
  • [Presentation] 魚病細菌Edwardsiella tardaは宿主Neu3のガングリオシド分解を利用して感染する.2019

    • Author(s)
      大石一樹 、守瀬萌里 、Vo Khanh Linh 、佐橋大地 、小松正治 、塩﨑一弘
    • Organizer
      第92回日本生化学会大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 魚類リソソームでのシアル酸分解におけるbeta-galactosidaseの存在意義.2019

    • Author(s)
      濱岡百合絵、岡田圭司、外園瑛一朗、小松正治、塩崎一弘
    • Organizer
      令和元年度日本水産学会九州支部大会
    • Related Report
      2019 Research-status Report

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

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