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

The physiological role of the respiratory chain-dependent peroxidase that is discovered from Aggregatibacter actinomycetemcomitans.

Research Project

Project/Area Number 19791353
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Morphological basic dentistry
Research InstitutionThe Nippon Dental University

Principal Investigator

TAKASHIMA Eizo  The Nippon Dental University, 生命歯学部, 助教 (50366762)

Co-Investigator(Renkei-kenkyūsha) SATOSHI Omura  , 北里生命科学研究所, 名誉教授 (90050426)
KAZURO Shiomi  , 北里生命科学研究所, 教授 (40235502)
KONISHI Kiyoshi  日本歯科大学, 生命歯学部, 教授 (20178289)
Project Period (FY) 2007 – 2008
Project Status Completed (Fiscal Year 2008)
Budget Amount *help
¥3,720,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥420,000)
Fiscal Year 2008: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2007: ¥1,900,000 (Direct Cost: ¥1,900,000)
Keywords呼吸鎖 / ペルオキシダーゼ / 限局性侵襲性歯周炎 / 毒素 / 若年性歯周炎 / Aggregatibacter actinomycetemcomitans / 酸化ストレス
Research Abstract

近年私達は若年性歯周炎起因菌であるAggregatibacter actinomycetemcomitansから呼吸鎖中のキノールを基質とするペルオキシダーゼを発見し、キノールペルオキシダーゼ(QPO)と名付けた。本研究では、QPOの生理的機能について検討をおこなった。その結果、QPO変異株において種々の内在性酸化ストレスの増加を認めると共に、本菌の主な病原因子である白血球毒(ロイコトキシン)産生量の大幅な減少を観察した。また、QPO阻害剤としてアスコフラノンを見いだし、本菌のロイコトキシンの産生を濃度依存性に減少させることを示した。

Report

(3 results)
  • 2008 Annual Research Report   Final Research Report ( PDF )
  • 2007 Annual Research Report
  • Research Products

    (12 results)

All 2008 2007

All Journal Article (4 results) (of which Peer Reviewed: 2 results) Presentation (8 results)

  • [Journal Article] Characterization of a quinol peroxidase mutant in Aggregatibacter actinomycetemcomitans2008

    • Author(s)
      Eizo Takashima, Kiyoshi Konishi
    • Journal Title

      FEMS Microbiology Letters 286

      Pages: 66-70

    • Related Report
      2008 Final Research Report
    • Peer Reviewed
  • [Journal Article] Characterization of a quinol peroxidase mutant in Aggregatibacter actinomycetemcomitans2008

    • Author(s)
      高島英造、 古西清司
    • Journal Title

      FEMS Microbiology Letters 286

      Pages: 66-70

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Bacterial multi-heme peroxidase2007

    • Author(s)
      Eizo Takashima, Kiyoshi Konishi.
    • Journal Title

      Research Advances in Biochemistry

      Pages: 21-27

    • Related Report
      2008 Final Research Report
  • [Journal Article] Bacterial multi-heme peroxidase2007

    • Author(s)
      高島英造、古西清司
    • Journal Title

      Research Advances in Biochemistry 1

      Pages: 21-27

    • Related Report
      2007 Annual Research Report
  • [Presentation] Aggregatibacter actinomycetemcomitansキノールペルオキシダーゼ特異的阻害剤によるロイコトキシン産生阻害2008

    • Author(s)
      高島英造、山田裕之、古西清司
    • Organizer
      第50回歯科基礎医学会学術大会・総会
    • Place of Presentation
      TOC有明コンベンションホール
    • Year and Date
      2008-09-24
    • Related Report
      2008 Final Research Report
  • [Presentation] Aggregatibacter actinomycetemcomitansキノールペルオキシダーゼ特異的阻害剤による、ロイコトキシン産生阻害2008

    • Author(s)
      高島英造、山田裕之、古西清司
    • Organizer
      第50回歯科基礎医学会学術大会・総会
    • Place of Presentation
      TOC有明コンベンションホール
    • Year and Date
      2008-09-24
    • Related Report
      2008 Annual Research Report
  • [Presentation] Characterization of the membrane-bound tri-heme c quinol peroxidase functionally connected to the respiratory chain2008

    • Author(s)
      Eizo Takashima, Hiroyuki Yamada, Kiyoshi Konishi
    • Organizer
      European Bioenergetics Conference 2008
    • Place of Presentation
      Trinity College Dublin, Ireland
    • Year and Date
      2008-07-20
    • Related Report
      2008 Final Research Report
  • [Presentation] Characterization of the membrane-bound tri-heme c quinol neroxidase functionally connected to the respiratory chain2008

    • Author(s)
      高島英造、山田裕之、古西清司
    • Organizer
      European Bioenergetics Conference 2008
    • Place of Presentation
      Trinity college Dublin, Ireland
    • Year and Date
      2008-07-20
    • Related Report
      2008 Annual Research Report
  • [Presentation] Characterization of the membrane-bound quinol peroxidase functionally connected to the respiratory chain2007

    • Author(s)
      Eizo Takashima, Hiroyuki Yamada, Kiyoshi Konishi
    • Organizer
      The Awaji international forum on infection and immunity
    • Place of Presentation
      Awaji Yumebutai International Conference Center, Japan
    • Year and Date
      2007-09-03
    • Related Report
      2008 Final Research Report
  • [Presentation] Characterization of the membrane-bound quinol peroxidase functionally connected to the respiratory chain2007

    • Author(s)
      高島英造、山田裕之、古西清司
    • Organizer
      The Awaji international forum on infection and immunity
    • Place of Presentation
      淡路夢舞台
    • Year and Date
      2007-09-03
    • Related Report
      2007 Annual Research Report
  • [Presentation] Molecular characterization of the membrane-bound quinol peroxidase functionally connected to the respiratory chain2007

    • Author(s)
      Eizo Takashima, Hiroyuki Yamada, Kiyoshi Konishi
    • Organizer
      Gordon research conference
    • Place of Presentation
      University of New England, United States of America
    • Year and Date
      2007-07-11
    • Related Report
      2008 Final Research Report
  • [Presentation] Molecular characterization of the membrane-bound quinol peroxidase functionally connected to the respiratory chain2007

    • Author(s)
      高島英造、山田裕之、古西清司
    • Organizer
      Gordon research conference
    • Place of Presentation
      University of New England
    • Year and Date
      2007-07-11
    • Related Report
      2007 Annual Research Report

URL: 

Published: 2007-04-01   Modified: 2016-04-21  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi