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Molecular mechanisms of necrosis induced by BteA family proteins

Research Project

Project/Area Number 17K08838
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Bacteriology (including mycology)
Research InstitutionKitasato University

Principal Investigator

Kuwae Asaomi  北里大学, 感染制御科学府, 准教授 (60337996)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2019: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywords百日咳菌 / III型分泌機構 / エフェクター / 細胞死 / III型分泌装置 / BteA / ボルデテラ属細菌 / 百日咳 / III型エフェクター / エロモナス属細菌
Outline of Final Research Achievements

BteA is one of the type III effectors secreted by Bordetella. BteA induces necrosis-like cell death against mammalian cells, however, the molecular mechanism of BteA-induced cell death is largely unknown. BteA shows homology against a hypothetical protein produced by Aeromonas hydrophila. In this study, candidates of counter partner for BteA was isolated by yeast two-hybrid system. Our results suggest actin cytoskeleton-related proteins were involved in the cell death induced by BteA.

Academic Significance and Societal Importance of the Research Achievements

百日咳はワクチンにより予防可能な疾病の一つであるが,ワクチン接種率が高い先進国においてもなお散発的な流行が認められる。現行ワクチンの免疫持続期間が5-10年と短いこと,その結果,百日咳に罹患した軽症状の成人がワクチン未接種乳児の感染源になっていること,また百日咳の典型的な症状である咳発作に効果的な薬剤が未開発であることが問題となっている。本研究では百日咳菌に特異的な病原因子であるBteAの作用機序の解明を試み,その一端を明らかにした。本研究がさらに発展すれば,BteAの機能を特異的に抑制するための新規薬剤開発のための分子基盤が構築可能である。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (8 results)

All 2020 2019 2018 2017

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 1 results) Presentation (5 results) (of which Invited: 1 results)

  • [Journal Article] Persistent colonization of non-lymphoid tissue-resident macrophages by Stenotrophomonas maltophilia2019

    • Author(s)
      Takahashi Ichiro, Hosomi Koji, Nagatake Takahiro, Tobou Hirokazu, Yamamoto Daiki, Hayashi Ikue, Kurashima Yosuke, Sato Shintaro, Shibata Naoko, Goto Yoshiyuki, Maruyama Fumito, Nakagawa Ichiro, Kuwae Asaomi, Abe Akio, Kunisawa Jun, Kiyono Hiroshi
    • Journal Title

      International Immunology

      Volume: 32 Issue: 2 Pages: 133-141

    • DOI

      10.1093/intimm/dxz071

    • NAID

      120006888456

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Bordetella bronchiseptica Bcr4 antagonizes the negative regulatory function of BspR via its role in type III secretion2018

    • Author(s)
      Nishimura Ryutaro、Abe Akio、Sakuma Yusuke、Kuwae Asaomi
    • Journal Title

      Microbiology and Immunology

      Volume: 61 Issue: 12 Pages: 743-754

    • DOI

      10.1111/1348-0421.12659

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] Bordetella effector BopN is translocated into host cells via its N-terminal residues2017

    • Author(s)
      Abe Akio、Nishimura Ryutaro、Kuwae Asaomi
    • Journal Title

      Microbiology and Immunology

      Volume: 61 Issue: 6 Pages: 206-214

    • DOI

      10.1111/1348-0421.12489

    • NAID

      40021227525

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Presentation] ボルデテラ属細菌が産生するタンパク質BopNの機能領域の解析2020

    • Author(s)
      木下沙綾,桑江朝臣,阿部章夫
    • Organizer
      第93回日本細菌学会総会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 百日咳菌におけるIII型分泌タンパク質の産生条件の検討2020

    • Author(s)
      後藤雅貴,桑江朝臣,阿部章夫
    • Organizer
      第93回日本細菌学会総会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 気管支敗血症菌のBcr4はIII型分泌機構に必須なタンパク質でありBspRの機能を制御する2019

    • Author(s)
      桑江朝臣,西村隆太郎,阿部章夫
    • Organizer
      第92回日本細菌学会総会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Bordetella属細菌が産生するタンパク質BspRとBcr4によるIII型分泌機構の制御2018

    • Author(s)
      桑江朝臣
    • Organizer
      日本獣医学会学術集会
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Bordetella effector BopN is translocated into host cells via its N-terminal residues.2018

    • Author(s)
      Asaomi Kuwae, Akio Abe
    • Organizer
      第91回日本細菌学会総会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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