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Role of host immune response using bacterial components involved in protection against Salmonella infection

Research Project

Project/Area Number 16K08080
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Integrative animal science
Research InstitutionNational Agriculture and Food Research Organization

Principal Investigator

Eguchi Masahiro  国立研究開発法人農業・食品産業技術総合研究機構, 動物衛生研究部門, 上級研究員 (00312215)

Co-Investigator(Kenkyū-buntansha) 小川 洋介  国立研究開発法人農業・食品産業技術総合研究機構, 動物衛生研究部門, 主任研究員 (10455305)
Project Period (FY) 2016-04-01 – 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 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2016: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywordsサルモネラ / ワクチン / 感染防御 / 防御抗原 / 免疫応答
Outline of Final Research Achievements

The purpose of this study is to analyze bacterial components involved in protection against Salmonella infection and to contribute to new vaccine development. The bacterial components involved in the protection against Salmonella infection that we clarified that CD11b, CD11c, and Gr-1-positive cells increased at the early stage of infection. It is also possible that increased CD11b, CD11c and Gr-1 positive cells are involved in Salmonella exclusion. In addition, we also clarified that the expression of bacterial components involved in protection against Salmonella infection differs depending on the strain, and we believe that it can be used for epidemiological analysis of field isolates.

Academic Significance and Societal Importance of the Research Achievements

これまで、宿主内のサルモネラの排除機構は完全には解明されていない。本研究で得られたCD11b, CD11c, Gr-1陽性細胞が増加する知見は、サルモネラの排除機構解明の端緒につながるのではないかと考えている。また、株によって、感染防御に関与する菌体成分の発現が異なることが明らかとなり、誘導される感染防御能が株によって異なることが示唆された。得られた知見は、疫学的な解析を展開させることで、ワクチン開発に貢献できると考えている。
本研究で得られた知見は、家畜を用いた臨床試験やワクチン投与により惹起する免疫担当細胞の活性化に必要な免疫賦活剤の検討が可能となり、実用化に向けた工程に寄与できる。

Report

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

    (7 results)

All 2019 2018 2017

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (5 results) (of which Int'l Joint Research: 2 results,  Invited: 1 results)

  • [Journal Article] Identification of an Antigen Specific to a Protective Salmonella Monoclonal Antibody.2019

    • Author(s)
      Aribam SD, Masukagami Y, Shiraiwa K, Nishikawa S, Ogawa Y, Akiba M, Shimoji Y, Eguchi M.
    • Journal Title

      Japan Agricultural Research Quarterly

      Volume: 53(3)

    • NAID

      130007706257

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Determination of O:4 antigen-antibody affinity level in O:5 antigen positive and negative variants of Salmonella enterica serovar Typhimurium.2017

    • Author(s)
      Nakai Y, Ito A, Ogawa Y, Aribam SD, Elsheimer-Matulova M, Shiraiwa K, Kisaka SMB, Hikono H, Nishikawa S, Akiba M, Kawahara K, Shimoji Y, Eguchi M.
    • Journal Title

      FEMS Microbiol Lett

      Volume: 367(7) Issue: 7

    • DOI

      10.1093/femsle/fnx062

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] The protective capacity of anti O:4 antigen antibodies against Salmonella infection is influenced by the presence or absence of O:5 antigen2018

    • Author(s)
      Marta ELSHEIMER-MATULOVA, Yumiko MASUKAGAMI, Yohsuke OGAWA, Yoshihiro SHIMOJI. Masahiro EGUCHI
    • Organizer
      FEBS2018
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] サルモネラO4抗体による感染防御機構2018

    • Author(s)
      Marta Elsheimer-Matulova 、枡鏡優美子、白岩和真、西川明芳、小川洋介、下地善弘、江口正浩
    • Organizer
      第161回日本獣医学会学術集会
    • Related Report
      2018 Annual Research Report
  • [Presentation] サルモネラワクチンに向けた取り組み2018

    • Author(s)
      江口正浩
    • Organizer
      第284回鶏病事例検討会
    • Related Report
      2018 Annual Research Report
    • Invited
  • [Presentation] Difference in O4 antibody protection against O5 antigen positive and negative of Salmonella2018

    • Author(s)
      Masahiro EGUCHI Marta ELSHEIMER-MATULOVA, Yumiko MASUKAGAMI, Kazumasa SHIRAIWA, Sayaka NISHIKAWA, Yohsuke OGAWA, Yoshihiro SHIMOJI
    • Organizer
      第91回日本細菌学会総会
    • Related Report
      2017 Research-status Report
  • [Presentation] IgG and CD8 T cells are essential for protective immunity against Salmonella infection2017

    • Author(s)
      Masahiro Eguchi, Marta Elsheimer-Matulova, Swarmistha Aribam,, Yohsuke Ogawa,, Yoshihiro Shimoji
    • Organizer
      IUMS 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research

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Published: 2016-04-21   Modified: 2020-03-30  

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