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2011 Fiscal Year Final Research Report

Analysis of an inhibition mechanism of cell destruction in infected epithelial cells by Shigella

Research Project

  • PDF
Project/Area Number 21790433
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Bacteriology (including Mycology)
Research InstitutionNational Institute of Infectious Diseases

Principal Investigator

ISHIHARA Tomoko  国立感染症研究所, 細菌第一部, 研究員 (30450555)

Project Period (FY) 2009 – 2011
Keywords感染症 / 微生物 / 細菌
Research Abstract

Gram-negative pathogenic bacteria, such as Shigella secrete various virulence factors into a host cell for efficient and continuous infection. This research suggested that virulence factors have two opposite functions, which are to enhance or to inhibit destruction of an epithelial cell. They control rapid destruction of an infected cell by modifying the cell signal pathway. These results provide clues as to the underlying cause of enteric infection and is expected to contribute to infection control measures, such as treatment of infection and development of vaccine.

  • Research Products

    (10 results)

All 2011 2010 2009

All Journal Article (5 results) (of which Peer Reviewed: 5 results) Presentation (5 results)

  • [Journal Article] Molecular Subtyping in Cholera Outbreak, Lao People's Democratic Republic, 20102011

    • Author(s)
      Sithivong N, Morita-Ishihara T, Vongdouangchanh A, Phouthavane T, Chomlasak K, Sisavath L, Khamphaphongphane B, Sengkeopraseuth B, Vongprachanh P, Keosavanh O, Southalack K, Jiyoung L, Tsuyuoka R, Ohinishi M, Izumiya H
    • Journal Title

      Emerging Infectious Diseases

      Volume: 17 Pages: 2060-2062

    • DOI

      DOI:10.3201/eid1711.110280

    • Peer Reviewed
  • [Journal Article] Antimicrobial Resistance and Genetic Characteristics of Salmonella Typhimurium Isolated from Horses in Hokkaido, Japan2009

    • Author(s)
      Niwa H, Anzai T, Izumiya H, Morita-Ishihara T, Uchida I, Tozaki T, Hobo S
    • Journal Title

      Journal of Veterinary Medical Science

      Volume: 71 Pages: 1115-1119

    • DOI

      DOI:10.1292/jvms.71.1115

    • Peer Reviewed
  • [Journal Article] Osmotic-Response Regulation of invE Gene Expression in Shigella sonnei2009

    • Author(s)
      Mitobe J, Morita-Ishihara T, Ishihama A, Watanabe H
    • Journal Title

      BMC Microbiology

      Volume: 9 Pages: 110-122

    • DOI

      doi:10.1186/1471-2180-9-110

    • Peer Reviewed
  • [Journal Article] Characterization of Shigella sonnei isolates from travel-associated cases in Japan2009

    • Author(s)
      Izumiya H, Tada Y, Itoh K, Nishimura K, Morita-Ishihara T, Ohnishi M, Terajima J, Watanabe H
    • Journal Title

      Journal of Medical Microbiology

      Volume: 58 Pages: 1486-1491

    • DOI

      DOI:10.1099/jmm.0.011809-0

    • Peer Reviewed
  • [Journal Article] Interaction between Enterohemorrhagic Escherichia coli O157 : H7 EspFu and IRSp53 induces dynamic membrane remodeling in epithelial cells2009

    • Author(s)
      Morita-Ishihara T, Terajima J, Watanabe H, Izumiya H
    • Journal Title

      Japanese Journal of Infectious Diseases

      Volume: 62 Pages: 351-355

    • URL

      http://www0.nih.go.jp/JJID/62/351.pdf

    • Peer Reviewed
  • [Presentation] Enterohaemorrhagic Escherichia coli O157 delivers a type 3 effector EspO1-2 into host cells to suppress RhoA activity enhanced by another type 3 effector EspM2 which acts as a RhoA GEF2011

    • Author(s)
      石原朋子
    • Organizer
      第34回日本分子生物学会年会
    • Place of Presentation
      横浜
    • Year and Date
      2011-12-14
  • [Presentation] タイプ3エフェクターEspO1-2は、腸管出血性大腸菌の感染細胞内においてEspM2を介したRhoA活性を制御する2011

    • Author(s)
      石原朋子
    • Organizer
      第94回日本細菌学会関東支部総会
    • Place of Presentation
      東京都
    • Year and Date
      2011-10-06
  • [Presentation] An EHEC type 3 effector EspO1-2 controls EspM2-mediated RhoA signaling pathway by protein-protein interaction to prevent detachment of EHEC-infected host cells2011

    • Author(s)
      石原朋子
    • Organizer
      The International Union of Microbiological Societies 2011 Congress
    • Place of Presentation
      札幌
    • Year and Date
      2011-09-07
  • [Presentation] Membrane remodeling in epithelial cells induced by interaction between EHEC EspFu and IRSp532010

    • Author(s)
      石原朋子
    • Organizer
      第83回日本細菌学会総会
    • Place of Presentation
      横浜
    • Year and Date
      2010-03-27
  • [Presentation] Interaction between Enterohemorrhagic Escherichia coli O157 : H7 EspFu and IRSp53 induces dynamic membrane remodeling in epithelial cells2009

    • Author(s)
      石原朋子
    • Organizer
      第92回日本細菌学会関東支部総会
    • Place of Presentation
      東京
    • Year and Date
      2009-11-05

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Published: 2013-07-31  

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