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RNA regulation of Vibrio parahaemolyticus type III secretion system gene expression in response to the environmental conditions

Research Project

Project/Area Number 20K07478
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 49050:Bacteriology-related
Research InstitutionOsaka University

Principal Investigator

Matsuda Shigeaki  大阪大学, 微生物病研究所, 准教授 (30506499)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords腸炎ビブリオ / Ⅲ型分泌装置 / 遺伝子発現制御 / 発現調節 / 遺伝子発現 / III型分泌装置
Outline of Research at the Start

食中毒原因細菌である腸炎ビブリオの主要な病原因子であるIII型分泌装置の遺伝子発現は、胆汁酸の存在などの腸管感染環境条件に応答して変動する。本研究ではこのような腸炎ビブリオIII型分泌装置の発現制御について、RNAシャペロンを介したRNA制御の観点からその分子メカニズムおよびネットワークを解き明かし、腸炎ビブリオの腸管感染環境に応答したIII型分泌装置の発現制御メカニズムの全容に迫ることを目指す。

Outline of Final Research Achievements

Vibrio parahaemolyticus is the leading cause of seafood-borne gastroenteritis worldwide. It inhabits the marine environment, therefore, during infection, the gene expression of the type III secretion systems (T3SSs), the major virulence factors of this organism, is appropriately regulated in adaptation to the host intestinal environment. In this study, we found the multifaceted layers of the T3SS gene expression regulation and the contribution of RNA regulation to the T3SS gene expression. We also elucidated the temperature- and salinity-dependent on/off mechanism of the T3SS gene expression, in which H-NS is underlying. These findings would contribute to a better understanding of the regulatory network of T3SS gene expression in V. parahaemolyticus.

Academic Significance and Societal Importance of the Research Achievements

病原細菌は感染を成立させるために様々な病原因子を産生するが、自身の環境に合わせてその適切な発現制御が求められる。本研究は主要な食中毒菌である腸炎ビブリオの病原因子であるⅢ型分泌装置の発現制御について、従来の転写制御因子による転写調節応答からの理解に加えてRNA制御の寄与などを明らかにしたことで、T3SS発現制御の仕組みの統合的な理解を進展させ、腸炎ビブリオの病原性発揮メカニズムの全容解明に資するものである。

Report

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

    (14 results)

All 2023 2022 2021 2020

All Journal Article (6 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (8 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Journal Article] Genome Analysis Identifies a Novel Type III Secretion System (T3SS) Category in Vibrio Species2023

    • Author(s)
      Zakaria D, Matsuda S, Iida T, Hayashi T, Arita M
    • Journal Title

      Microorganisms

      Volume: 11 Issue: 2 Pages: 290-290

    • DOI

      10.3390/microorganisms11020290

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The Xenogeneic Silencer Histone-Like Nucleoid-Structuring Protein Mediates the Temperature and Salinity-Dependent Regulation of the Type III Secretion System 2 in Vibrio parahaemolyticus2022

    • Author(s)
      Pratama A, Ishii E, Kodama T, Iida T and Matsuda S
    • Journal Title

      Journal of Bacteriology

      Volume: 205 Issue: 1

    • DOI

      10.1128/jb.00266-22

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Structural basis for the toxin-coregulated pilus?dependent secretion of <i>Vibrio cholerae</i> colonization factor2022

    • Author(s)
      Oki Hiroya、Kawahara Kazuki、Iimori Minato、Imoto Yuka、Nishiumi Haruka、Maruno Takahiro、Uchiyama Susumu、Muroga Yuki、Yoshida Akihiro、Yoshida Takuya、Ohkubo Tadayasu、Matsuda Shigeaki、Iida Tetsuya、Nakamura Shota
    • Journal Title

      Science Advances

      Volume: 8 Issue: 41 Pages: 1-11

    • DOI

      10.1126/sciadv.abo3013

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Direct RNA Sequencing Unfolds the Complex Transcriptome of Vibrio parahaemolyticus2021

    • Author(s)
      Al Kadi M, Ishii E, Truong DT, Motooka D, Matsuda S, Iida T, Kodama T, Okuzaki D
    • Journal Title

      mSystems

      Volume: 6 Issue: 6

    • DOI

      10.1128/msystems.00996-21

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Mechanisms of action of <i>Vibrio parahaemoltyicus</i> cytotoxins2020

    • Author(s)
      MATSUDA Shigeaki
    • Journal Title

      Nippon Saikingaku Zasshi

      Volume: 75 Issue: 4 Pages: 215-225

    • DOI

      10.3412/jsb.75.215

    • NAID

      130007962098

    • ISSN
      0021-4930, 1882-4110
    • Related Report
      2020 Research-status Report
  • [Journal Article] 食中毒菌・腸炎ビブリオによる新規下痢誘導メカニズムの解明2020

    • Author(s)
      松田 重輝, 児玉 年央
    • Journal Title

      感染・炎症・免疫

      Volume: 50 (2) Pages: 2-11

    • Related Report
      2020 Research-status Report
  • [Presentation] H-NS mediates temperature- and salinity-dependent regulation of T3SS2 in Vibrio parahaemolyticus2023

    • Author(s)
      Andre Pratama,石井 英治,児玉 年央,飯田 哲也,松田 重輝
    • Organizer
      第96回日本細菌学会総会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Histone-like nucleoid-structuring protein mediates the temperature- and salinity-dependent regulation of type III secretion system 2 in Vibrio parahaemolyticus2023

    • Author(s)
      Andre Pratama, Eiji Ishii, Toshio Kodama, Tetsuya Iida, Shigeaki Matsuda
    • Organizer
      2023 USJCMSP EID Conference
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 食中毒菌・腸炎ビブリオの病原性発現戦略をさぐる2023

    • Author(s)
      松田 重輝
    • Organizer
      第30回大阪母子医療センターシンポジウム
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] A global regulator H-NS mediates temperature- and salinity-dependent regulation of type III secretion system 2 in Vibrio parahaemolyticus2022

    • Author(s)
      Andre Pratama, Eiji Ishii, Toshio Kodama, Tetsuya Iida, Shigeaki Matsuda
    • Organizer
      第54回ビブリオシンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] A global regulator H-NS mediates temperature- and salinity-dependent regulation of type III secretion system 2 in Vibrio parahaemolyticus2022

    • Author(s)
      Andre Pratama, Eiji Ishii, Toshio Kodama, Tetsuya Iida, Shigeaki Matsuda
    • 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
  • [Presentation] A global regulator H-NS mediates temperature- and salinity-dependent regulation of type III secretion system 2 in Vibrio parahaemolyticus2022

    • Author(s)
      Andre Pratama, Eiji Ishii, Toshio Kodama, Tetsuya Iida, Shigeaki Matsuda
    • Organizer
      第75回日本細菌学会関西支部総会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Xenogeneic silencing-mediated regulation of T3SS2 in Vibrio parahaemolyticus2022

    • Author(s)
      Andre Pratama, 石井英治、児玉年央、飯田哲也、松田重輝
    • Organizer
      第95回日本細菌学会総会
    • Related Report
      2021 Research-status Report
  • [Presentation] The complex landscape of Vibrio parahaemolyticus transcriptome2022

    • Author(s)
      Mohamad Al Kadi, 石井英治、Dang Tat Truong、元岡大祐、松田重輝、飯田哲也、児玉年央、奥崎大介
    • Organizer
      第95回日本細菌学会総会
    • Related Report
      2021 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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