• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Research on factors regulating sporulation and enterotoxin production in Clostridium perfringens causing food-borne illness

Research Project

Project/Area Number 15K08783
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Hygiene and public health
Research InstitutionOsaka Prefecture University

Principal Investigator

YASUGI Mayo  大阪府立大学, 生命環境科学研究科, 准教授 (40589008)

Research Collaborator NAKAMURA shota  
NARIYA hirofumi  
Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsウェルシュ菌 / 食中毒 / 芽胞形成 / 毒素産生 / 胆汁酸 / レドックス / Spo0A / Clostridium perfringens / 酵母2ハイブリッド法 / ランダムミュータジェネシス / 硝酸還元 / トランスポゾン / clostridium perfringens / マイクロアレイ
Outline of Final Research Achievements

Sporulation in Clostridium perfringens causing food-borne illness is a key event for its pathogenesis because sporulation and production of enterotoxin are co-regulated under the signal cascade for sporulation. We found that bile salts induced sporulation by accelerating phosphorylation of Spo0A, master regulator of sporulation. To identify bacterial factor(s) for phosphorylation, we have established transposon based random mutagenesis and analyzed using next generation sequencer. We found 39 candidate genes that are possible to induce phosphorylation of Spo0A. We also found that an oxidant, nitrate inhibited sporulation by regulating Spo0A activation step (dimerization of Spo0A or binding to promoters of Spo0A-regulated genes).

Academic Significance and Societal Importance of the Research Achievements

ウェルシュ菌食中毒では芽胞形成が病気発症の主要イベントであり、その分子機序の解明を通した病気発症の制御法の開発が期待される。本研究の学術的意義は、芽胞形成に関与する因子とその作用機序の一部を明らかにすることで、病気発症機序の理解に新たな視点を与えた点、ならびに宿主体内における病原微生物の生存戦略の一端の解明に繋がる基盤知見を創出した点にある。
また、作用機序の解明は芽胞形成の制御を通した食中毒の予防法の開発へと研究の応用が期待されるが、本研究はその基盤知見の創出に貢献した点に社会的意義がある。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (38 results)

All 2019 2018 2017 2016 2015 Other

All Int'l Joint Research (8 results) Journal Article (6 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 5 results,  Acknowledgement Compliant: 1 results) Presentation (23 results) (of which Int'l Joint Research: 6 results,  Invited: 3 results) Remarks (1 results)

  • [Int'l Joint Research] Oregon State University(米国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Jiao Tong University(中国)

    • Related Report
      2018 Annual Research Report
  • [Int'l Joint Research] Oregon State University/Houston University(米国)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] Monash University(Australia)

    • Related Report
      2017 Research-status Report
  • [Int'l Joint Research] Oregon State University/Houston University(米国)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] Monash University(Australia)

    • Related Report
      2016 Research-status Report
  • [Int'l Joint Research] Oregon State University/Houston University(米国)

    • Related Report
      2015 Research-status Report
  • [Int'l Joint Research] Monash University(Australia)

    • Related Report
      2015 Research-status Report
  • [Journal Article] An enhanced green fluorescence protein (EGFP)-based reporter assay for quantitative detection of sporulation in Clostridium perfringens SM101.2019

    • Author(s)
      Wakabayashi Y, Nariya H, Yasugi M, Kuwahara T, Sarker MR, Miyake M.
    • Journal Title

      Int J Food Microbiol

      Volume: 291 Pages: 144-150

    • DOI

      10.1016/j.ijfoodmicro.2018.11.015

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Effect of sublethal heat treatment on the later stage of germination-to-outgrowth of Clostridium perfringens spores2018

    • Author(s)
      Sakanoue H, Yasugi M, Miyake M
    • Journal Title

      Microbiology and Immunology

      Volume: 62 Issue: 6 Pages: 418-424

    • DOI

      10.1111/1348-0421.12598

    • NAID

      40021572985

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Adherence of Clostridium perfringens spores to human intestinal epithelial Caco-2 cells2018

    • Author(s)
      Sakanoue H, Nakano T, Sano K, Yasugi M, Monma C, Miyake M
    • Journal Title

      FEMS Microbiology Letters

      Volume: 365 Issue: 5

    • DOI

      10.1093/femsle/fny016

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Spores of anaerobic bacteria; characteristics and their behaviors during restoration from damaged status2018

    • Author(s)
      Miyake M, Kohda T, Yasugi M, Sakanoue H
    • Journal Title

      食品科学工学会誌

      Volume: 印刷中

    • Related Report
      2017 Research-status Report
  • [Journal Article] The transcriptional profile during deoxycholate-induced sporulation in a Clostridium 
perfringens isolate from foodborne illness.2016

    • Author(s)
      Yasugi M, Okuzaki D, Kuwana R, Takamatsu H, Fujita M, Sarker MR, Miyake M.
    • Journal Title

      Applied and Environmental Microbiology

      Volume: 82 Issue: 10 Pages: 2929-2942

    • DOI

      10.1128/aem.00252-16

    • Related Report
      2016 Research-status Report 2015 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Nitrate salts suppress sporulation and production of enterotoxin in Clostridium perfringens strain NCTC82392016

    • Author(s)
      Mayo Yasugi, Keisuke Otsuka and Masami Miyake
    • Journal Title

      Microbiology and Immunology

      Volume: 60 Issue: 10 Pages: 657-668

    • DOI

      10.1111/1348-0421.12437

    • NAID

      40020989367

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] A restriction-modification system associated with phosphorothioation of DNA in Clostridium perfringens2019

    • Author(s)
      Yasugi M, Motooka D, Nakamura S, Miyake M
    • Organizer
      11th International Conference on the Molecular Biology and Pathogenesis of the Clostridia
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] ウェルシュ菌食中毒株の芽胞形成に関与する因子とそのメカニズムの解析2019

    • Author(s)
      安木真世
    • Organizer
      微生物制御研究センターシンポジウム2019
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] 細菌芽胞の発芽を抑制する天然素材について2019

    • Author(s)
      三宅眞実、西木の実、安木真世
    • Organizer
      日本食品微生物学会近畿地区会
    • Related Report
      2018 Annual Research Report
  • [Presentation] A restriction system associated with phosphorothioation of DNA in Clostridium perfringens2018

    • Author(s)
      安木真世、三宅眞実
    • Organizer
      第91回日本細菌学会総会
    • Related Report
      2017 Research-status Report
  • [Presentation] Food-borne illness caused by Clostridium perfringens2018

    • Author(s)
      Yasugi M
    • Organizer
      さくらサイエンス
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Nitrate salts suppress sporulation and production of enterotoxin in Clostridium perfringens strain NCTC82392017

    • Author(s)
      安木真世、三宅眞実
    • Organizer
      第90回日本細菌学会総会
    • Place of Presentation
      仙台国際センター展示棟(宮城県仙台市)
    • Year and Date
      2017-03-19
    • Related Report
      2016 Research-status Report
  • [Presentation] Adherence of Clostridium perfringens spores to human intestinal epithelial cells Caco-22017

    • Author(s)
      坂野上英世、門間千枝、安木真世、中野隆史、佐野浩一、三宅眞実
    • Organizer
      第90回日本細菌学会総会
    • Place of Presentation
      仙台国際センター展示棟(宮城県仙台市)
    • Year and Date
      2017-03-19
    • Related Report
      2016 Research-status Report
  • [Presentation] The effects of the bile acid analogs on the sporulation of Clostridium perfringens food poisoning isolates2017

    • Author(s)
      平田祥太郎、安木真世、中辻匡俊、乾隆、三宅眞実
    • Organizer
      第90回日本細菌学会総会
    • Place of Presentation
      仙台国際センター展示棟(宮城県仙台市)
    • Year and Date
      2017-03-19
    • Related Report
      2016 Research-status Report
  • [Presentation] ウェルシュ菌芽胞形成に対するステロイド化合物の構造学的解析2017

    • Author(s)
      平田祥太郎、安木真世、三宅眞実
    • Organizer
      第1回獣医微生物学フォーラム
    • Place of Presentation
      東京大学弥生講堂(東京都文京区)
    • Year and Date
      2017-03-01
    • Related Report
      2016 Research-status Report
  • [Presentation] Deoxycholate-induced sporulation by facilitating Spo0A phosphorylation in Clostridium perfringens2017

    • Author(s)
      Yasugi M, Miyake M
    • Organizer
      Lorne Infection and Immunity Conference 2017
    • Place of Presentation
      Mantra Lorne, Lorne, Victoria, Australia
    • Year and Date
      2017-02-15
    • Related Report
      2016 Research-status Report
    • Int'l Joint Research
  • [Presentation] Deoxycholate induced sporulation by facilitating Spo0A phosphorylation in C.perfringens2017

    • Author(s)
      Yasugi M, Okuzaki D, Kuwana R, Takamatsu H, Fujita M, Sarker MR, Miyake M
    • Organizer
      10th International Conference on the Molecular Biology and Pathogenesis of the Clostridia
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 胆汁酸によるウェルシュ菌の芽胞形成・毒素産生増強機序の解明2017

    • Author(s)
      安木真世、奥崎大介、桑名利津子、高松宏治、藤田昌也、Sarker MR、三宅眞実
    • Organizer
      第64回トキシンシンポジウム
    • Related Report
      2017 Research-status Report
  • [Presentation] ウェルシュ菌の芽胞形成を評価するレポーター系の構築2016

    • Author(s)
      若林友騎、安木真世、三宅眞実
    • Organizer
      第37回日本食品微生物学会学術総会
    • Place of Presentation
      タワーホール船堀(東京都江戸川区)
    • Year and Date
      2016-09-15
    • Related Report
      2016 Research-status Report
  • [Presentation] ウェルシュ菌の腸管内増殖・毒素産生動態2016

    • Author(s)
      安木真世
    • Organizer
      第159回日本獣医学会学術集会
    • Place of Presentation
      日本大学生物資源科学部(神奈川県藤沢市)
    • Year and Date
      2016-09-06
    • Related Report
      2016 Research-status Report
    • Invited
  • [Presentation] 胆汁酸構造類似体がウェルシュ菌食中毒分離株の芽胞形成に与える影響2016

    • Author(s)
      平田祥太郎、安木真世、三宅眞実
    • Organizer
      第159回日本獣医学会学術集会
    • Place of Presentation
      日本大学生物資源科学部(神奈川県藤沢市)
    • Year and Date
      2016-09-06
    • Related Report
      2016 Research-status Report
  • [Presentation] 胆汁酸構造類似体がウェルシュ菌食中毒分離株の芽胞形成に与える影響2016

    • Author(s)
      平田祥太郎、安木真世、三宅眞実
    • Organizer
      第10回細菌学若手コロッセウム
    • Place of Presentation
      草津セミナーハウス(群馬県吾妻郡)
    • Year and Date
      2016-07-31
    • Related Report
      2016 Research-status Report
  • [Presentation] Deoxycholate induced sporulation by facilitating Spo0A phosphorylation in Clostridium perfringens2016

    • Author(s)
      安木真世、奥崎大介、桑名利津子、高松宏治、藤田昌也、Mahfuzur R. Sarker、三宅眞実
    • Organizer
      第89回日本細菌学会総会
    • Place of Presentation
      大阪国際交流センター(大阪府大阪市)
    • Year and Date
      2016-03-23
    • Related Report
      2015 Research-status Report
  • [Presentation] 還元剤、特に硫化水素と亜硫酸のウェルシュ菌の芽胞形成に対する影響2016

    • Author(s)
      山田智、三宅眞実、安木真世
    • Organizer
      第89回日本細菌学会総会
    • Place of Presentation
      大阪国際交流センター(大阪府大阪市)
    • Year and Date
      2016-03-23
    • Related Report
      2015 Research-status Report
  • [Presentation] ステロイド化合物がウェルシュ菌SM101系統の芽胞形成に与える影響2016

    • Author(s)
      平田祥太郎、三宅達彦、安木真世、三宅眞実
    • Organizer
      第89回日本細菌学会総会
    • Place of Presentation
      大阪国際交流センター(大阪府大阪市)
    • Year and Date
      2016-03-23
    • Related Report
      2015 Research-status Report
  • [Presentation] 栄養枯渇ストレスがウェルシュ菌芽胞形成に及ぼす影響2016

    • Author(s)
      家久保可奈子、入江通子、三宅眞実、安木真世
    • Organizer
      第69回日本細菌学会関西支部総会
    • Place of Presentation
      大阪市立大学田中記念館(大阪府大阪市)
    • Related Report
      2016 Research-status Report
  • [Presentation] 胆汁酸構造類似体によるウェルシュ菌の芽胞形成促進作用について2016

    • Author(s)
      平田祥太郎、安木真世、三宅眞実
    • Organizer
      第69回日本細菌学会関西支部総会
    • Place of Presentation
      大阪市立大学田中記念館(大阪府大阪市)
    • Related Report
      2016 Research-status Report
  • [Presentation] Cytotoxicity induced by Clostridium perfringens isolates that cause food poisoning or non-food-borne gastrointestinal diseases2015

    • Author(s)
      Yasugi M, Sugahara Y, Hoshi H, Kondo K, Talukdar PK, Sarker MR, Yamamoto S, Kamata Y, Miyake M
    • Organizer
      9th International conference on the molecular biology and pathogenesis of the Clostridia
    • Place of Presentation
      Freiburg, Germany
    • Year and Date
      2015-09-07
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] Identification of a substance in mouse feces that suppresses sporulation of Clostridium perfringens2015

    • Author(s)
      Miyake M, Miyake T, Yasugi M, Yamamoto S, Kamata Y
    • Organizer
      9th International conference on the molecular biology and pathogenesis of the Clostridia
    • Place of Presentation
      Freiburg, Germany
    • Year and Date
      2015-09-07
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Remarks] 大阪府立大学 獣医公衆衛生学

    • URL

      http://www.vet.osakafu-u.ac.jp/pub/

    • Related Report
      2018 Annual Research Report 2017 Research-status Report 2016 Research-status Report 2015 Research-status Report

URL: 

Published: 2015-04-16   Modified: 2022-02-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi