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Expression regulation and synthetic pathway of SIGIRR/TIR8, a negative regulator of Toll like receptor signaling

Research Project

Project/Area Number 20890276
Research Category

Grant-in-Aid for Young Scientists (Start-up)

Allocation TypeSingle-year Grants
Research Field Biological pharmacy
Research InstitutionSojo University

Principal Investigator

SHUTO Keiko  Sojo University, 薬学部, 助手 (70510692)

Project Period (FY) 2008 – 2009
Project Status Completed (Fiscal Year 2009)
Budget Amount *help
¥3,302,000 (Direct Cost: ¥2,540,000、Indirect Cost: ¥762,000)
Fiscal Year 2009: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2008: ¥1,742,000 (Direct Cost: ¥1,340,000、Indirect Cost: ¥402,000)
Keywords炎症制御 / SIGIRR / LPS / 発現調節 / 自然免疫
Research Abstract

SIGIRR/TIR8 has been reported to negatively regulate Toll-like receptor (TLR) signaling, that plays critical role for inflammatory response. However, precise mechanism responsible for the regulation of SIGIRR expression during TLR signaling remains obscure. In this study, we confirmed the regulation of SIGIRR expression by Lipopolysaccharide (LPS), which is well known as a TLR activator. As a result, LPS down regulated SIGIRR expression at transcriptional level. Moreover, p38 MAP kinase downstream of TLR signaling, and transcriptional factor Sp1 were possibly involved in LPS induced SIGIRR down-regulation.

Report

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

    (5 results)

All 2009 2008

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (4 results)

  • [Journal Article] MUCl mucin is a negative regulator of Toll-like receptor signaling2008

    • Author(s)
      Ueno-Shuto, K, et al.
    • Journal Title

      American Journal of Respiratory Cell and Molecular Biology 38

      Pages: 263-268

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Presentation] LPSによるTollシグナル抑制分子SIGIRRの発現低下とその分子機構の解明2009

    • Author(s)
      首藤恵子
    • Organizer
      第26回日本薬学会九州支部大
    • Place of Presentation
      九州大学
    • Year and Date
      2009-12-12
    • Related Report
      2009 Final Research Report
  • [Presentation] Tollシグナル抑制分子SIGIRRのLPS誘導性発現抑制機構の解明2009

    • Author(s)
      首藤恵子
    • Organizer
      日本薬学会九州支部大会
    • Place of Presentation
      九州大学
    • Year and Date
      2009-12-12
    • Related Report
      2009 Annual Research Report
  • [Presentation] Lipopolysaccharide decreases SIGIRR/TIR8 gene expression possibly by suppressing Sp1 via TLR4-p38 MAP kinase pathway2009

    • Author(s)
      首藤恵子
    • Organizer
      Tri-society Annual Conference 2009 of the Society for Leukocyte Biology, International Cytokine Society, and International Society for Interferon and Cytokine Research.
    • Place of Presentation
      Lisbon, Portugal, Lisboa Congress Center
    • Year and Date
      2009-10-21
    • Related Report
      2009 Final Research Report
  • [Presentation] LIPOPOLYSACCHARIDE DECREASES SIGIRR/TIR8 GENE EXPRESSI-ON POSSIBLY BY SUPPRESSING SP1 VIA TLR4-P38 MAP KINASE PATHWAY2009

    • Author(s)
      首藤恵子
    • Organizer
      Tri-Society Meeting of International Cytokine Society (ICS), International Society for Interferon and Cytokine Research (ISICR), and Society for Leukocyte Biology (SLB)
    • Place of Presentation
      Lisbon Congress Centre
    • Year and Date
      2009-10-20
    • Related Report
      2009 Annual Research Report

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

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