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2011 Fiscal Year Final Research Report

Analysis of the molecular mechanism underlying the intrinsic regulation in excess reation induced by bacterial infections

Research Project

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Project/Area Number 21590496
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field Bacteriology (including Mycology)
Research InstitutionTokyo Women's Medical University

Principal Investigator

YAGI Junji  東京女子医科大学, 医学部, 教授 (70182300)

Co-Investigator(Kenkyū-buntansha) IMANISHI Ken' ichi  東京女子医科大学, 医学部, 准教授 (20132920)
ARIMURA Yutaka  東京女子医科大学, 医学部, 講師 (10281677)
OMORI Miyuki  東京女子医科大学, 医学部, 助教 (30462667)
KATO Hidehito  東京女子医科大学, 医学部, 助教 (00241084)
HARUTA Ikuko  東京女子医科大学, 医学部, 講師 (80221513)
UESHIBA Hidehiro  東京女子医科大学, 医学部, 助教 (30223449)
Co-Investigator(Renkei-kenkyūsha) OZAKI Makoto  東京女子医科大学, 医学部, 教授 (30160849)
KOTANI Toru  東京女子医科大学, 医学部, 准教授 (00195736)
Project Period (FY) 2009 – 2011
Keywords感染免疫 / LECT2 / 敗血症 / 毒素性ショック / 炎症 / 炎症性サイトカイン
Research Abstract

Using the mouse model of SEA-induced toxicity, LECT2^<-/-> mouse showed exacerbation of multiple organ failure and increase of mortality. The plasma LECT2 level in B6 mouse injected with SEA/D-GalN declined rapidly and increased to the normal level until 72 hours after treatment. The administration of LECT2 suppressed remarkably plasma TNF-and IL-6 levels and increased survival rate. LECT2 appears to be an intrinsic regulatory factor in excess inflammatory responses. In the patients with sepsis, the plasma LECT2 level decreased at acute phase, and increased at recovery phase, suggesting for the first time that LECT2 might be also associated with human inflammatory diseases.

  • Research Products

    (21 results)

All 2011 2010 2009

All Journal Article (7 results) (of which Peer Reviewed: 7 results) Presentation (14 results)

  • [Journal Article] Are dysregulated inflammatory responses to commensal bacteria involved in the pathogenesis of hepatobiliary-pancreatic autoimmune disease? An analysis using mice models of primary biliary cirrhosis and autoimmune pancreatitis2011

    • Author(s)
      Yanagisawa N, Haruta I, Kikuchi K, Shibata N, Yagi J
    • Journal Title

      ISRN Gastroenterol

      Volume: 513514

    • DOI

      DOI:10.5402/2011/513514

    • Peer Reviewed
  • [Journal Article] A mouse model of autoimmune pancreatitis with salivary gland involvement triggered by innate immunity via persistent exposure to avirulent bacteria2010

    • Author(s)
      Haruta I, Yanagisawa N, Kawamura S, Furukawa T, Shimizu K, Kato H, Kobayashi M, Shiratori K, Yagi J
    • Journal Title

      Lab Invest

      Volume: 90 Pages: 1757-1769

    • Peer Reviewed
  • [Journal Article] Possible role of LECT2 as an intrinsic regulatory factor in SEA-induced toxicity in d-galactosamine-sensitized mice2010

    • Author(s)
      Dang MH, Kato H, Ueshiba H, Omori-Miyake M, Yamagoe S, Ando K, Imanishi K, Arimura Y, Haruta I, Kotani T, Ozaki M, Suzuki K, Uchiyama T, Yagi J
    • Journal Title

      Clin Immunol

      Volume: 137 Pages: 311-321

    • Peer Reviewed
  • [Journal Article] Long-term bacterial exposure can trigger nonsuppurative destructive cholangitis associated with multifocal epithelial inflammation2010

    • Author(s)
      Haruta I, Kikuchi K, Hashimoto E, Nakamura M, Miyakawa H, Hirota K, Shibata N, Kato H, Arimura Y, Kato Y, Uchiyama T, Nagamune H, Kobayashi M, Miyake Y, Shiratori K, Yagi J
    • Journal Title

      Lab Invest

      Volume: 90 Pages: 577-588

    • Peer Reviewed
  • [Journal Article] Reduced T cell expansion by a superantigen as a result of impaired B cell development in mice deficient for the p85a regulatory subunit of PI3K2010

    • Author(s)
      Arimura Y, Ezaki T, Koyanagi M, Uchiyama T, Koyasu S, Yagi J
    • Journal Title

      J Leukoc Biol

      Volume: 87 Pages: 493-500

    • Peer Reviewed
  • [Journal Article] Interaction between superantigen and T-cell receptor Vb element determines levels of superantigen-dependent cell-mediated cytotoxicity ofCD8+T cells in induction and effector phases2009

    • Author(s)
      Li ZJ, Omoe K, Shinagawa K, Yagi J, Imanishi K
    • Journal Title

      Microbiol Immunol

      Volume: 53 Pages: 451-459

    • Peer Reviewed
  • [Journal Article] Positive correlation between low adhesion of group A Streptococcus to mammalian cells and virulence in a mouse model2009

    • Author(s)
      Miyoshi-Akiyama T, Zhao J, Uchiyama T, Yagi J, Kirikae T
    • Journal Title

      Microbiol Lett.

      Volume: 11 Pages: 2253-2270

    • Peer Reviewed
  • [Presentation] マウスモデルを用いたNAFLD→肝発癌の病因・病態解析の試み2011

    • Author(s)
      春田郁子, 他
    • Organizer
      第40回日本免疫学会総会学術集会
    • Place of Presentation
      千葉市
    • Year and Date
      2011-11-29
  • [Presentation] 自己免疫性膵炎マウスモデルの発症機構に関与する大腸菌構成因子の解明2011

    • Author(s)
      柳沢直子, 他
    • Organizer
      第40回日本免疫学会総会学術集会
    • Place of Presentation
      千葉市
    • Year and Date
      2011-11-28
  • [Presentation] 非アルコール性脂肪性肝炎モデルマウスにおける、慢性細菌暴露が誘引となる遠隔部皮膚病変の検討2011

    • Author(s)
      上芝秀博, 他
    • Organizer
      第94回日本細菌学会関東支部総会
    • Place of Presentation
      東京都港区
    • Year and Date
      2011-10-06
  • [Presentation] The level of LECT2 in blood associates with the severity of systemic inflammation in patients with sepsis2011

    • Author(s)
      安藤一義, 他
    • Organizer
      International Union of Microbiological Societies 2011 Congress
    • Place of Presentation
      札幌
    • Year and Date
      2011-09-10
  • [Presentation] Morphine inhibit lethal endotoxic shock2011

    • Author(s)
      加藤秀人, 他
    • Organizer
      International Union of Microbiological Societies 2011 Congress
    • Place of Presentation
      札幌
    • Year and Date
      2011-09-10
  • [Presentation] Is the disregulation of homeostatic inflammation involved in the pathogenesis of innate-immune mediated hepato-biliary-pancreatic autoimmune disease?: Analysis using mice models of primary biliary cirrhosis and autoimmune pancreatitis2011

    • Author(s)
      春田郁子, 他
    • Organizer
      International Union of Microbiological Societies 2011 Congress
    • Place of Presentation
      札幌
    • Year and Date
      2011-09-10
  • [Presentation] Distant skin inflammation induced by chronic bacterial exposure to abdominal subcutaneous tissue in nonalcoholic fatty liver disease-harboring mice2011

    • Author(s)
      上芝秀博, 他
    • Organizer
      International Union of Microbiological Societies 2011 Congress
    • Place of Presentation
      札幌
    • Year and Date
      2011-09-10
  • [Presentation] Studies of affinities of a superantigen, Yersinia pseudotubercuosis-derived mitogen to MHC class II molecule and TCR Vs chain2011

    • Author(s)
      今西健一, 他
    • Organizer
      International Union of Microbiological Societies 2011 Congress
    • Place of Presentation
      札幌
    • Year and Date
      2011-09-10
  • [Presentation] Escherichia coli induced autoimmune pancreatitis in C57BL/6 mice2011

    • Author(s)
      柳沢直子, 他
    • Organizer
      International Union of Microbiological Societies 2011 Congress
    • Place of Presentation
      札幌
    • Year and Date
      2011-09-07
  • [Presentation] 細菌が誘導する自然免疫賦活は自己免疫性疾患の誘引となり得るか?-自己免疫性膵炎及び原発性胆汁性肝硬変モデルを用いた発症機構の検討-2011

    • Author(s)
      春田郁子, 他
    • Organizer
      第21回Kyoto T Cell Conference
    • Place of Presentation
      京都
    • Year and Date
      2011-06-11
  • [Presentation] Development of human CD4^+T cells and their responses to bacterial superantigens2010

    • Author(s)
      Imanishi K, Takahashi N, et al
    • Organizer
      14^<th> International congress of immunology
    • Place of Presentation
      神戸
    • Year and Date
      2010-08-25
  • [Presentation] Possible role of LECT2 as an intrinsic regulatory factor in toxic shock syndrome2010

    • Author(s)
      Kato H, Dang HM, et al
    • Organizer
      14^<th> International congress of immunology
    • Place of Presentation
      神戸
    • Year and Date
      2010-08-23
  • [Presentation] Haruta I, Kikuchi K, et al2010

    • Author(s)
      Haruta I, Kikuchi K, et al
    • Organizer
      7^<th> International congress on autoimmunity
    • Place of Presentation
      Ljubljana, Slovenia
    • Year and Date
      2010-05-06
  • [Presentation] 敗血症におけるLECT2の役割2009

    • Author(s)
      大森深雪、安藤一義, 他
    • Organizer
      第39回日本免疫学会総会・学術集会
    • Place of Presentation
      大阪
    • Year and Date
      2009-12-04

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Published: 2013-07-31  

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