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Elucidation of Legionella self-PLAMP inside the host

Planned Research

Project AreaEstablishment of PLAMP as a new concept to determine self and nonself for obligatory intracellular pathogens
Project/Area Number 20H05772
Research Category

Grant-in-Aid for Transformative Research Areas (B)

Allocation TypeSingle-year Grants
Review Section Transformative Research Areas, Section (III)
Research InstitutionTokyo University of Pharmacy and Life Science

Principal Investigator

Arasaki Kohei  東京薬科大学, 生命科学部, 准教授 (70609990)

Project Period (FY) 2020-10-02 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥46,150,000 (Direct Cost: ¥35,500,000、Indirect Cost: ¥10,650,000)
Fiscal Year 2022: ¥14,950,000 (Direct Cost: ¥11,500,000、Indirect Cost: ¥3,450,000)
Fiscal Year 2021: ¥14,950,000 (Direct Cost: ¥11,500,000、Indirect Cost: ¥3,450,000)
Fiscal Year 2020: ¥16,250,000 (Direct Cost: ¥12,500,000、Indirect Cost: ¥3,750,000)
KeywordsPLAMP / レジオネラ / レジオネラエフェクター / 小胞輸送 / Rabタンパク質 / 小胞体 / 膜輸送 / 膜融合 / Rab
Outline of Research at the Start

本来我々にとって「非自己」である病原菌の多くは、病原性を発揮する過程において「自己」として振る舞う。そして、自己として振る舞うために、我々の細胞内の環境を病原菌にとって都合の良い環境へと「自己化」する。それゆえ、病原体が細胞内の「どこ」を「どのように」自己化しているのかを明らかにすることは、病原菌による感染症に対して、抗生物質を使用しない新たな治療への足がかりとなることが期待される。本研究では、肺炎を引き起こすレジオネラを病原菌のモデルとして、レジオネラの宿主細胞内における「自己化」の分子機構を明らかにすることを目的としている。

Outline of Final Research Achievements

The aim of this research is elucidation of Legionella self-PLAMP inside the host cells. In particular, we have analyzed both host and bacterial factors that are related to Legionella self-PLAMP in 3 subjects including “elucidation of machinery in which Legionella inhibits trafficking of Legionella-containing vacuole (LCV) to the lysosome”, “elucidation of machinery of LCV trafficking to the ER”, and “elucidation of machinery of Legionella sustainment into the ER”. Upon these researches, we have successfully identification of bacterial factors that promote Legionella self-PLAPM. Moreover, we have revealed a part of molecular machineries in which these factors promote Legionella self-PLAMP.

Academic Significance and Societal Importance of the Research Achievements

研究成果の学術的意義として重要な点は、「細胞内に侵入したレジオネラが自身を分解する宿主機構を回避しながら、増殖の場となる小胞体へと移行し定着化する」レジオネラ自己化PLAMPに関わる宿主・バクテリア両因子の決定とその分子機序を明らかにできたことである。社会的意義としては、本研究成果が「新規レジオネラ治療薬開発への足掛かりとなるかもしれない」ことである。現時点では、レジオネラに対する治療法は抗生物質の投与が主流となっているが、本研究で明らかになりつつあるレジオネラPLMAPを阻害することによる増殖抑制といった新たな治療法を確立できる可能性を秘めている。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (17 results)

All 2022 2021 2020

All Journal Article (7 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 7 results,  Open Access: 4 results) Presentation (10 results) (of which Int'l Joint Research: 2 results,  Invited: 5 results)

  • [Journal Article] Requirement of phosphatidic acid binding for distribution of bacterial protein targeting syntaxin 172022

    • Author(s)
      Murata Misaki、Kanamori Riku、Kitao Tomoe、Kubori Tomoko、Nagai Hiroki、Tagaya Mitsuo、Arasaki Kohei
    • Journal Title

      Journal of Cell Science

      Volume: 135 Issue: 6 Pages: 259538-259538

    • DOI

      10.1242/jcs.259538

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Protocol for imaging proteins associated with Legionella-containing vacuoles in host cells2021

    • Author(s)
      Kitao T, Arasaki K, Nagai H, Kubori T.
    • Journal Title

      STAR Protoc.

      Volume: 29;2(2) Issue: 2 Pages: 100410-100410

    • DOI

      10.1016/j.xpro.2021.100410

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Syntaxin 17, an ancient SNARE paralog, plays different and conserved roles in different organisms2021

    • Author(s)
      Kato Shun、Arasaki Kohei、Tokutomi Natsuki、Imai Yuzuru、Inoshita Tsuyoshi、Hattori Nobutaka、Sasaki Taeko、Sato Miyuki、Wakana Yuichi、Inoue Hiroki、Tagaya Mitsuo
    • Journal Title

      Journal of Cell Science

      Volume: 134 Issue: 22

    • DOI

      10.1242/jcs.258699

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Legionella hijacks the host Golgi-to-ER retrograde pathway for the association of Legionella-Containing vacuole with the ER2021

    • Author(s)
      Kawabata Mio、Matsuo Honoka、Koito Takumi、Murata Misaki、Kubori Tomoko、Nagai Hiroki、Tagaya Mitsuo、Arasaki Kohei
    • Journal Title

      PLOS Pathogens

      Volume: 17 Issue: 3 Pages: e1009437-e1009437

    • DOI

      10.1371/journal.ppat.1009437

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Guidelines for the use and interpretation of assays for monitoring autophagy (4th edition)12021

    • Author(s)
      Daniel J Klionsky、Shu Aizawa、Amal Kamal Abdel-Aziz、Sara Abdelfatah、Mahmoud Abdellatif、Asghar Abdoli、Steffen Abel、Hagai Abeliovich、Marie H Abildgaard、Yakubu Princely Abudu、Abraham Acevedo-Arozena、Iannis E Adamopoulos、Khosrow Adeli、Timon E Adolph、Annagrazia Adornetto、Elma Aflaki、Galila Agam et al.
    • Journal Title

      Autophagy

      Volume: 17 Issue: 1 Pages: 1-382

    • DOI

      10.1080/15548627.2020.1797280

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The ER cholesterol sensor SCAP promotes CARTS biogenesis at ER-Golgi membrane contact sites2021

    • Author(s)
      Wakana Yuichi、Hayashi Kaito、Nemoto Takumi、Watanabe Chiaki、Taoka Masato、Angulo-Capel Jessica、Garcia-Parajo Maria F.、Kumata Hidetoshi、Umemura Tomonari、Inoue Hiroki、Arasaki Kohei、Campelo Felix、Tagaya Mitsuo
    • Journal Title

      Journal of Cell Biology

      Volume: 220 Issue: 1 Pages: 3355-3371

    • DOI

      10.1083/jcb.202002150

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Legionella Manipulates Non-canonical SNARE Pairing Using a Bacterial Deubiquitinase.2020

    • Author(s)
      Tomoe Kitao, Kyoichiro Taguchi, Shintaro Seto, Kohei Arasaki, Hiroki Ando, Hiroki Nagai, Tomoko Kubori
    • Journal Title

      Cell Reports

      Volume: 32(10) Issue: 10 Pages: 108107-108107

    • DOI

      10.1016/j.celrep.2020.108107

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Ubiquitination of Rab5 as a Legionella PLAMP2022

    • Author(s)
      新崎恒平
    • Organizer
      第20回あわじ感染と免疫国際フォーラム
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Different roles of ACSL3 and ACSL4 in autophagosome formation.2022

    • Author(s)
      Shun Kato , Kohei Arasaki, Mitsuo Tagaya.
    • Organizer
      EMBO Workshop: The endoplasmic reticulum; The master regulator of membrane Trafficking
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Acyl-CoA合成酵素ACSL3のオートファゴソーム形成への関与2022

    • Author(s)
      加藤駿・新崎恒平・多賀谷光男
    • Organizer
      第95回日本生化学会大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Involvement of Acyl-CoA synthase ACSL3 in autophagosome formation.2022

    • Author(s)
      加藤駿・新崎恒平・多賀谷光男
    • Organizer
      日本薬学会第134年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] レジオネラ感染におけるLCVリモデリング及び小胞体移行機構2021

    • Author(s)
      新崎恒平
    • Organizer
      第21回・Pharmaco-Hematology
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] レジオネラによる宿主輸送経路の多彩な制御機構2021

    • Author(s)
      新崎恒平
    • Organizer
      第31回・フォーラム・イン・ドージン
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] レジオネラはRabカスケードを利用してレジオネラ含有小胞(LCV)を小胞体へと移行させる2021

    • Author(s)
      新崎恒平
    • Organizer
      第94回・日本生化学会大会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Syntaxin 17の機能を制御するリン酸化部位の同定2020

    • Author(s)
      新崎恒平・杉沢優太・多賀谷光男
    • Organizer
      第93回 日本生化学会大会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 異種生物Syntaxin 17の局在および機能2020

    • Author(s)
      加藤駿・新崎恒平・多賀谷光男
    • Organizer
      第93回 日本生化学会大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 飢餓時の脂肪滴と隔離膜の形成はsyntaxin 17-ACSL3軸によって調節されている2020

    • Author(s)
      岡田直樹・大畑俊貴・新崎恒平・多賀谷光男
    • Organizer
      第93回 日本生化学会大会
    • Related Report
      2020 Annual Research Report

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Published: 2020-10-30   Modified: 2024-01-30  

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