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Analysis of the mechanism that inflammation-inducible DC subset enhances the survival of B cells

Research Project

Project/Area Number 18K07169
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 49070:Immunology-related
Research InstitutionThe University of Tokyo

Principal Investigator

Fukui Ryutaro  東京大学, 医科学研究所, 特任准教授 (60554508)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
KeywordsTLR7 / 単球系細胞 / 炎症 / 自己免疫疾患 / 炎症誘導性単球 / B細胞 / サイトカイン / Toll-like receptor / 自然免疫 / 新規樹状細胞サブセット
Outline of Final Research Achievements

We found an inflammation-inducible dendritic subset is increased in an autoimmune disease model mouse. This population also increased in aged mice. We analyzed the immune cells in some autoimmune mouse and aged mice. As result, the subset increased in autoimmune hepatitis model and systemic lupus erythematosus model but not in type I diabetes model. These cells express multiple Toll-like receptors (TLRs), however, only TLR7 contributes the induction.

Academic Significance and Societal Importance of the Research Achievements

免疫系は様々な細胞から構成されており、各々の細胞が協調的に働くことで生体防御システムを構築している。自己免疫疾患やアレルギーなどは免疫細胞の制御が破綻した結果起こる病気であり、原因となる細胞の性質を明らかにすることが重要である。本研究では、これまで着目されていなかった細胞の機能を解析し、誘導される自己免疫疾患や、細胞に発現している分子を特定した。今後は本研究で得られた情報をもとに、当該細胞サブセットが関わる疾患の原因解明や、治療ターゲットの探索などが進められていくと期待される。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (4 results)

All 2020 2019 2018

All Journal Article (2 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (2 results) (of which Invited: 1 results)

  • [Journal Article] The impact of cell maturation and tissue microenvironments on the expression of endosomal Toll-like receptors in monocytes and macrophages2020

    • Author(s)
      Sato R, Reuter T, Hiranuma R, Shibata T, Fukui R, Motoi Y, Murakami Y, Tsukamoto H, Yamazaki S, Liu K, Saitoh SI, Latz E, Miyake K.
    • Journal Title

      Int Immunol

      Volume: 32 Issue: 12 Pages: 785-798

    • DOI

      10.1093/intimm/dxaa055

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Cleavage of Toll-Like Receptor 9 Ectodomain Is Required for In Vivo Responses to Single Strand DNA2018

    • Author(s)
      Fukui Ryutaro、Yamamoto Chikako、Matsumoto Fumi、Onji Masahiro、Shibata Takuma、Murakami Yusuke、Kanno Atsuo、Hayashi Takuto、Tanimura Natsuko、Yoshida Nobuaki、Miyake Kensuke
    • Journal Title

      Frontiers in Immunology

      Volume: 9 Pages: 1491-1491

    • DOI

      10.3389/fimmu.2018.01491

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] マウスToll-like receptor 7阻害抗体は炎症性疾患モデルマウスの症状を緩和する2019

    • Author(s)
      福井 竜太郎
    • Organizer
      第40回日本炎症・再生医学会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Toll-like receptor 7 is a factor of type 1 diabetes in NOD mice2019

    • Author(s)
      FUKUI Ryutaro, KANNO Atsuo, MOTOI Yuji, MURAKAMI Yusuke, MIYAKE Kensuke
    • Organizer
      第48回日本免疫学会学術集会
    • Related Report
      2019 Research-status Report

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Published: 2018-04-23   Modified: 2022-01-27  

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