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Reclassification of [Pasteurella] pneumotropica and detection of virulence determinants.

Research Project

Project/Area Number 16K07095
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Laboratory animal science
Research InstitutionJuntendo University

Principal Investigator

Sasaki Hiraku  順天堂大学, スポーツ健康科学部, 准教授 (20384969)

Co-Investigator(Kenkyū-buntansha) 久保原 禅  順天堂大学, スポーツ健康科学研究科, 教授 (00221937)
池 郁生  国立研究開発法人理化学研究所, バイオリソース研究センター, 特別嘱託研究員 (40183157)
Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2016: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords肺パスツレラ / ドラフトゲノム / RTX毒素 / R. pneumotropicus / R. heylii / Rodentibacter spp. / Cdi / Esi / 食作用 / 全ゲノム / 細菌分類 / 病原因子 / 日和見病原体 / 微生物モニタリング
Outline of Final Research Achievements

This study has attempted to conduct on reclassification of rodent Pasteurella and development of identification methods regarding virulent determinants. In initial stage of the study period, however, formal reclassification of rodent Pasteurella was completed and published from Univ. Copenhagen. Based on the announcement, formally named [Pasteurella] pneumotropica had been reclassified as Rodentibacter pneumotropicus and R. heylii. The strategy of study was forced to change, and thus, the virulence factors of Rodentibacter and the related species were further identified and evaluated their ubiquitous pathogenicity toward mammal cells. Of these results, Yersinia-adhesin A, contact-dependent inhibition system-related proteins and tyrosine-phosphorylated protein in host immune cells were identified in Rodentibacter. Further, a part of wild-type Rodentibacter sp. that possess RTX toxin was confirmed to induce pneumonia in immunodeficient rodent.

Academic Significance and Societal Importance of the Research Achievements

当該研究では、肺パスツレラの再編を狙っていたが、同時にヨーロッパでもその機運が高まっていた時期であり、他研究機関によって分類再編がなされた。しかしながら、基本的な肺パスツレラ検出法や病原性はいまだ明確化されておらず混乱しているため、病原性解析を主体に研究を行ってきた。近年、真正細菌で同定された細菌同士の増殖抑制機構や宿主細胞でのリン酸化機構があることは肺パスツレラの病原性指標や検出法の参考に出来ることであり、実験動物感染症における新たな知見の集積になったと考えられる。今後はこの基礎データをさらに発展させることが望まれる。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (17 results)

All 2020 2019 2018 2017 2016 Other

All Int'l Joint Research (1 results) Journal Article (6 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 4 results,  Open Access: 4 results,  Acknowledgement Compliant: 1 results) Presentation (10 results) (of which Invited: 1 results)

  • [Int'l Joint Research] 国立公衆衛生環境研究所 (RIVM)(オランダ)

    • Related Report
      2017 Research-status Report
  • [Journal Article] 実験動物感染症の現状:肺パスツレラの細菌分類再編と微生物モニタリング2019

    • Author(s)
      佐々木啓
    • Journal Title

      実験動物ニュース

      Volume: 68(2) Pages: 26-30

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
  • [Journal Article] Experimental Contact Infection of NOD/ShiJic-scid mice with Pasteurella pneumotropica.2017

    • Author(s)
      Kawamoto E, Sasaki H, Kanai T, Ueshiba H.
    • Journal Title

      SOJ Microbiology and Infectious Disease

      Volume: 5(3) Issue: 3 Pages: 1-6

    • DOI

      10.15226/sojmid/5/3/00172

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Identification of a virulence determinant that is conserved in the Jawetz and Heyl biotypes in [Pasteurella] pneumotropica.2017

    • Author(s)
      Sasaki H, Ishikawa H, Terayama H, Asano R, Kawamoto E, Ishibashi H, Boot R.
    • Journal Title

      Biomedical Advances (http://biomedical-advances.org/inf-20175-26/)

      Volume: September Pages: 26-26

    • Related Report
      2017 Research-status Report
    • Open Access / Int'l Joint Research
  • [Journal Article] [Pasteurella] pneumotropica as a potential mouse infection model for assessment of substantial opportunistic bacterial infections.2017

    • Author(s)
      3.Sasaki H, Ueshiba H, Kawamoto E, Boot R
    • Journal Title

      International Journal of Clinical and Medical Microbiology

      Volume: 1 Issue: 2 Pages: 115-115

    • DOI

      10.15344/2456-4028/2016/115

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Influenza virus infection causes neutrophil dysfunction through reduced G-CSF production and an increased risk of secondary bacteria infection in the lung.2016

    • Author(s)
      Ishikawa H, Fukui T, Ino S, Sasaki H, Awano N, Kohda C, and Tanaka K.
    • Journal Title

      Virology

      Volume: 499 Pages: 23-29

    • DOI

      10.1016/j.virol.2016.08.025

    • Related Report
      2016 Research-status Report
    • Peer Reviewed
  • [Journal Article] Identification of a virulence determinant that is conserved in the Jawetz and Heyl biotypes in [Pasteurella] pneumotropica.2016

    • Author(s)
      Sasaki H, Ishikawa H, Terayama H, Asano R, Kawamoto E, Ishibashi H, Boot R
    • Journal Title

      Pathogens and Disease

      Volume: 74 Issue: 6 Pages: ftw066-ftw066

    • DOI

      10.1093/femspd/ftw066

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] マウス日和見感染細菌5種の基準株ゲノム完全配列決定2020

    • Author(s)
      郁生、梶田亜矢子、佐々木啓、山中仁木、豊田敦
    • Organizer
      日本細菌学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 溶血性を示すRodentibacter sp.の病原性解析2019

    • Author(s)
      佐々木啓、石川裕樹、上芝秀博、池郁生
    • Organizer
      日本実験動物学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] マウス日和見感染症細菌ゲノム情報の整備について2019

    • Author(s)
      池郁生、梶田亜矢子、中島謙一、村田武英、吉木淳、小幡裕一、佐々木啓、山中仁木、豊田敦
    • Organizer
      日本実験動物学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 肺パスツレラ(R. pneumotropica、R. heylii)以外のげっ歯類パスツレラの病原性は?2019

    • Author(s)
      佐々木啓、上芝秀博、石川裕樹
    • Organizer
      実験動物微生物統御若手の会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 複数遺伝子座の塩基配列情報を用いた肺パスツレラ分離株解析2018

    • Author(s)
      梶田亜矢子、仲柴俊昭、吉木 淳、佐々木 啓、池 郁生
    • Organizer
      第65回日本実験動物学会総会
    • Related Report
      2018 Research-status Report
  • [Presentation] 肺パスツレラのゲノム塩基情報の整理2018

    • Author(s)
      池 郁生、梶田亜矢子、仲柴俊昭、中田初美、小幡裕一、佐々木 啓、吉木 淳
    • Organizer
      第65回日本実験動物学会総会
    • Related Report
      2018 Research-status Report
  • [Presentation] 肺パスツレラの分類再編と病原性因子について2018

    • Author(s)
      佐々木啓
    • Organizer
      日本実験動物医学会シンポジウム
    • Related Report
      2018 Research-status Report
    • Invited
  • [Presentation] Influenza virus infection causes reduced G-CSF production in lung followed by neutrophil dysfunction against secondary bacteria infection.2018

    • Author(s)
      Ishikawa H, Sasaki H, Ino S, Kohda C, Tanaka K
    • Organizer
      第47回日本免疫学会学術集会
    • Related Report
      2018 Research-status Report
  • [Presentation] Neutrophil dysfunction in lung during influenza virus infection.2018

    • Author(s)
      Ishikawa H, Sasaki H, Ino S, Kohda C, Tanaka K
    • Organizer
      第66回日本ウイルス学会学術集会
    • Related Report
      2018 Research-status Report
  • [Presentation] Identification of a virulence that is conserved in the biotypes of [Pasteurella] pneumotropica.2017

    • Author(s)
      Sasaki H, Ishikawa H, Ueshiba H, Kawamoto E, Ike F.
    • Organizer
      第90回日本細菌学会総会
    • Related Report
      2017 Research-status Report 2016 Research-status Report

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Published: 2016-04-21   Modified: 2021-02-19  

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