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Group A streptococci translocates across epithelial barrier via intercellular junction cleavage

Research Project

Project/Area Number 20791336
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Morphological basic dentistry
Research InstitutionOsaka University

Principal Investigator

SUMITOMO Tomoko  Osaka University, 大学院・歯学研究科, 助教 (50423421)

Project Period (FY) 2008 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2009: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2008: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywordsレンサ球菌 / 病原因子 / 組織侵入 / 細胞間隙 / 上皮バリア
Research Abstract

Group A Streptococcus pyogenes (GAS) is a human pathogen that causes local suppurative infections and severe invasive diseases. Systemic dissemination of GAS is initiated by bacterial penetration of the epithelial barrier of the pharynx or damaged skin. In this study, our data indicate a potential function of Streptolysin S that facilitates GAS invasion into deeper tissue via degradation of epithelial intercellular junctions in concert with the host cysteine protease calpain.

Report

(3 results)
  • 2009 Annual Research Report   Final Research Report ( PDF )
  • 2008 Annual Research Report
  • Research Products

    (22 results)

All 2010 2009 2008 Other

All Journal Article (4 results) (of which Peer Reviewed: 2 results) Presentation (14 results) Book (1 results) Remarks (3 results)

  • [Journal Article] Pili of oral Streptococcus sanguinis bind to fibronectin and contribute to cell adhesion2010

    • Author(s)
      Okahashi N, Nakata M, Sakurai A, Terao Y, Hoshino T, Yamaguchi M, Isoda R, Sumitomo T, Nakano K, Kawabata S, Ooshima T.
    • Journal Title

      Biochem Biophys Res Commun 391(2)

      Pages: 1192-1196

    • Related Report
      2009 Final Research Report
  • [Journal Article] Pili of oral Streptococcas sanguinis bind to fibronectin and contribute to cell adhesion.2010

    • Author(s)
      Okahashi, N.
    • Journal Title

      Biochemical and biophysical research communications 391

      Pages: 1192-1196

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mode of expression and functional characterization of FCT-3 pilus region encoded proteins in the Streptococcus pyogenes serotype M49.2009

    • Author(s)
      Nakata M, Koller T, Moritz K, Ribardo D, Jonas L, McIver KS, Sumitomo T, Terao Y, Kawabata S, Podbielski A, Kreikemeyer B.
    • Journal Title

      Infect Immun 77(1)

      Pages: 32-44

    • Related Report
      2009 Final Research Report
  • [Journal Article] Mode of expression and functional characterization of FCT-3 pilus region encoded proteins in the Streptococcus pyogenes serotype M492009

    • Author(s)
      Nakata, M.
    • Journal Title

      Infection and Immunity 77

      Pages: 32-44

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] A群レンサ球菌の上皮バリア突破機構に関与する宿主プロテアーゼの解析2010

    • Author(s)
      住友倫子, 中田匡宣, 東野美晴, 寺尾豊, 川端重忠
    • Organizer
      第83回日本細菌学会総会
    • Place of Presentation
      横浜市
    • Related Report
      2009 Final Research Report
  • [Presentation] A群レンサ球菌の上皮バリア突破機構に関与する宿主プロテアーゼの検索2010

    • Author(s)
      住友倫子, 中田匡宣, 東野美晴, 寺尾豊, 川端重忠
    • Organizer
      第7回感染症沖縄フォーラム
    • Place of Presentation
      沖縄国民年金健康センター.
    • Related Report
      2009 Final Research Report
  • [Presentation] A群レンサ球菌の上皮バリア突破機構に関与する宿主プロテアーゼの検索2010

    • Author(s)
      住友倫子
    • Organizer
      特定領域研究「感染現象のマトリックス」第8回 感染症沖縄フォーラム
    • Place of Presentation
      那覇市
    • Related Report
      2009 Annual Research Report
  • [Presentation] A群レンサ球菌の上皮バリア突破機構に関与する宿主プロテアーゼの解析2010

    • Author(s)
      住友倫子
    • Organizer
      第83回 日本細菌学会 総会
    • Place of Presentation
      横浜市
    • Related Report
      2009 Annual Research Report
  • [Presentation] 宿主細胞間接着分子の破壊に関与するA群レンサ球菌プロテアーゼの検索2010

    • Author(s)
      東野美晴
    • Organizer
      第83回 日本細菌学会 総会
    • Place of Presentation
      横浜市
    • Related Report
      2009 Annual Research Report
  • [Presentation] A群レンサ球菌が産生する線毛の細胞壁架橋機構の解析2010

    • Author(s)
      中田匡宣
    • Organizer
      第83回 日本細菌学会 総会
    • Place of Presentation
      横浜市
    • Related Report
      2009 Annual Research Report
  • [Presentation] Group A Streptococci translocates across epithelial barrier via intercellular junction cleavage.2009

    • Author(s)
      Sumitomo T, Nakata M, Terao Y, Kawabata S.
    • Organizer
      109th General Meeting of American Society for Microbiology.
    • Place of Presentation
      Philadelphia, USA.
    • Related Report
      2009 Final Research Report
  • [Presentation] Group A streptococci translocates across epithelial barrier via intercellular junction cleavage2009

    • Author(s)
      Sumitomo, T.
    • Organizer
      American Society for Microbiology General 109^<th> Meeting
    • Place of Presentation
      Pennsylvania, USA
    • Related Report
      2009 Annual Research Report
  • [Presentation] カルボシステインによるヒト肺胞上皮細胞への付着抑制効果2009

    • Author(s)
      住友倫子
    • Organizer
      第52回 日本感染症学会 中日本地方会
    • Place of Presentation
      名古屋市
    • Related Report
      2009 Annual Research Report
  • [Presentation] 細胞間隙経路を介したA群レンサ球菌の上皮バリア突破機構に関する解析2009

    • Author(s)
      住友倫子
    • Organizer
      特定領域研究「感染現象のマトリックス」第7回感染症沖縄フォーラム
    • Place of Presentation
      那覇市
    • Related Report
      2008 Annual Research Report
  • [Presentation] A群レンサ球菌の上皮バリア突破機構に関する解析2009

    • Author(s)
      住友倫子
    • Organizer
      第82回日本細菌学会総会
    • Place of Presentation
      名古屋市
    • Related Report
      2008 Annual Research Report
  • [Presentation] A群レンサ球菌線毛の温度感受性発現機構の解析2009

    • Author(s)
      中田匡宣
    • Organizer
      第82回日本細菌学会総会
    • Place of Presentation
      名古屋市
    • Related Report
      2008 Annual Research Report
  • [Presentation] Neonatal exposure induced commensal-like immune-response against Aggregatibacter actnomycetemcomitans in Mice2009

    • Author(s)
      Isocia, R.
    • Organizer
      International Association for Dental Research 87^<th>Genefal session and Exhibition
    • Place of Presentation
      Miami, USA
    • Related Report
      2008 Annual Research Report
  • [Presentation] A群レンサ球菌の上皮バリア突破機構に関する解析2008

    • Author(s)
      住友倫子
    • Organizer
      第17回Lancefieldレンサ球菌研究会
    • Place of Presentation
      徳島市
    • Related Report
      2008 Annual Research Report
  • [Book] 生命歯科医学のカッティング・エッジ(米田俊之編)2008

    • Author(s)
      寺尾豊
    • Publisher
      大阪大学出版会
    • Related Report
      2008 Annual Research Report
  • [Remarks]

    • URL

      http://web.dent.osaka-u.ac.jp/~mcrbio/

    • Related Report
      2009 Final Research Report
  • [Remarks]

    • URL

      http://web.dent.osaka-u.ac.jp/~mcrbio/

    • Related Report
      2009 Annual Research Report
  • [Remarks]

    • URL

      http://www.dent.osaka-u.ac.jp/~mcrbio/index.html

    • Related Report
      2008 Annual Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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