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The relation between the metabolism of genus Streptococcus andhost components.

Research Project

Project/Area Number 22590395
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Bacteriology (including Mycology)
Research InstitutionKyushu University

Principal Investigator

IIDA Kenichiro  九州大学, 医学研究院, 助教 (00346777)

Co-Investigator(Kenkyū-buntansha) SAITO Mitsumasa  九州大学, 医学研究院, 学術研究員 (00315087)
Project Period (FY) 2010 – 2012
Project Status Completed (Fiscal Year 2012)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2012: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2011: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2010: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordslactate oxidase / 化膿レンサ球菌 / 過酸化水素 / レンサ球菌 / 好気性代謝 / 乳酸利用能 / 電子伝達系 / 乳酸 / Lactate oxidase
Research Abstract

Genus Streptococcus has been isolated from the body as a pathgen or part of the nomal flora, but has not been isolated from the environment. This shows that, the these bacteria has a close relationship with components of the host’s body therefore there is a need to elucidate the ecology of genus Streptococcus. In this study, using our privious report on the use of oxygen for metabolism by S. pyogenes and S. agalactiae, we have analyzed the relationship between these bacteria’s metabolism and the supposed hostcomponent. Results showed that S. pyogenes can possibly use lactic acid that it produces or from an external source for ATP production. Also, we have shown that inside the body, S. agalactiae takes in heme from an external source using its hemolysin and is able to activate the electron transport system. We have shown from these results the close relationship between host component and Streptococcus and now this genus efficiently produces ATP by thriving inside the host’s body. From these results we have shown its relation to these bacteria’s pathogenicity and important knowledge on the ecology of genus Streptococcus has also been elucidated.

Report

(4 results)
  • 2012 Annual Research Report   Final Research Report ( PDF )
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (10 results)

All 2012 2011 2010 Other

All Journal Article (3 results) (of which Peer Reviewed: 3 results) Presentation (6 results) Remarks (1 results)

  • [Journal Article] Effect of hyperbaric oxygen on Vibrio vulnificus and murine infection caused by it2012

    • Author(s)
      Tamura T, Iida K, Saito M, Shiota S, Nakayama H, Yoshida S
    • Journal Title

      Microbiol Immunol

      Volume: 56(10) Issue: 10 Pages: 673-9

    • DOI

      10.1111/j.1348-0421.2012.00491.x

    • NAID

      40019437050

    • Related Report
      2012 Annual Research Report 2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Systematic cytokine response in moribund mice of streotococcal toxic shock syndrome model2011

    • Author(s)
      Saito M, Kajiwara H, Iida K, Hoshina T, Kusuhara K, Hara T, Yoshida S
    • Journal Title

      Microb Pathog

      Volume: 50 Issue: 2 Pages: 109-13

    • DOI

      10.1016/j.micpath.2010.12.001

    • Related Report
      2012 Final Research Report
    • Peer Reviewed
  • [Journal Article] Systemic cytokine response in moribund mice of streptococcal toxic shock syndrome model.2011

    • Author(s)
      Saito M, Kajiwara H, Iida K, 他
    • Journal Title

      Microbial Pathogenesis

      Volume: 50-2 Pages: 109-113

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] Analysis of mechanisms actively using oxygen for production ATP found in Streptococcus pyogenes and Streptococcus agalactia2012

    • Author(s)
      Iida K, Seki M, Saito M, Nakayama H, Yoshida S
    • Organizer
      The 11th Korea-Japan International Symposium on Microbiology
    • Place of Presentation
      Buyeo, Korea
    • Related Report
      2012 Final Research Report
  • [Presentation] Analysis of mechanisms actively using oxygen for production ATP found in Streptococcus pyogenes and Streptococcus agalactiae2012

    • Author(s)
      Iida K
    • Organizer
      The 11th Korea-Japan International Symposium on Microbiology 2012
    • Place of Presentation
      Buyeo (Korea)
    • Related Report
      2012 Annual Research Report
  • [Presentation] Purification of Streptociccus pyogenes lactate oxidase and analysis of its Activity2011

    • Author(s)
      Iida K, et al
    • Organizer
      IUMS (International Union of Microbiological Societies) 2011 Congress, Sapporo
    • Place of Presentation
      Sapporo, Hokkaido, Japan
    • Year and Date
      2011-09-07
    • Related Report
      2011 Annual Research Report
  • [Presentation] Streptococcus pyogenesのlactate oxidaseとH_2O_2産生性について2011

    • Author(s)
      飯田健一郎, 他
    • Organizer
      第20回Lancefieldレンサ球菌研究会
    • Place of Presentation
      愛知学院大学(名古屋市)
    • Year and Date
      2011-06-18
    • Related Report
      2011 Annual Research Report
  • [Presentation] Purification of Streptococcus pyogeneslactate oxidase and analysis of its activity2011

    • Author(s)
      Iida K, Seki M, Saito M, Yoshida S
    • Organizer
      The International Union of Microbiological Societies (IUMS)
    • Place of Presentation
      Sapporo
    • Related Report
      2012 Final Research Report
  • [Presentation] Streptococcus pyogenesのlactate oxidaseについて2010

    • Author(s)
      飯田健一郎, 他
    • Organizer
      第19回Lancefieldレンサ球菌研究会
    • Place of Presentation
      国立国際医療研究センター研究所(東京都新宿区戸山)
    • Year and Date
      2010-06-25
    • Related Report
      2010 Annual Research Report
  • [Remarks]

    • URL

      http://www.med.kyushu-u.ac.jp/bact/

    • Related Report
      2012 Final Research Report

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Published: 2010-08-23   Modified: 2019-07-29  

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