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Elucidation of the mechanisms of TRAs expression independently of Aire

Research Project

Project/Area Number 26670231
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Immunology
Research InstitutionThe University of Tokyo

Principal Investigator

Takaba Hiroyuki  東京大学, 大学院医学系研究科(医学部), 特任助教 (50637444)

Co-Investigator(Renkei-kenkyūsha) TAKAYANAGI Hiroshi  東京大学, 大学院医学系研究科, 教授 (20334229)
Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2016: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2015: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2014: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
KeywordsT細胞 / 免疫寛容 / Self tolerance / 獲得免疫 / 自己寛容
Outline of Final Research Achievements

T cell repertoire selection in the thymus comprises the positive and negative selection in the cortex and medulla, respectively. A promiscuous expression of a wide array of self-antigens in the thymus is essential for the negative selection of self-reactive T cells and the regulatory T cell development, which are crucial for the establishment of central tolerance. Aire was thought to be the exclusive factor regulating the expression of tissue-restricted antigens, but Fezf2 emerged as a transcription factor playing a key role in this regulation. Fezf2 is selectively expressed in thymic medullary epithelial cells and suppresses the onset of autoimmune reactions.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (7 results)

All 2017 2016 2015

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Acknowledgement Compliant: 1 results) Presentation (4 results) (of which Int'l Joint Research: 3 results) Book (2 results)

  • [Journal Article] Fezf2 Orchestrates a Thymic Program of Self-Antigen Expression for Immune Tolerance.2015

    • Author(s)
      H. Takaba et al.,
    • Journal Title

      Cell

      Volume: 163 Pages: 975-987

    • Related Report
      2015 Research-status Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] T cell selection mediated by Fezf2 in the thymus2017

    • Author(s)
      Hiroyuki Takaba and Hiroshi Takayanagi
    • Organizer
      KTCC 2017
    • Place of Presentation
      Kyoto, Japan
    • Year and Date
      2017-03-14
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A novel key regulator of autoimmunity2016

    • Author(s)
      Hiroyuki Takaba and Hiroshi Takayanagi
    • Organizer
      Gordon Research Conference
    • Place of Presentation
      Lucca, Italy
    • Year and Date
      2016-06-18
    • Related Report
      2015 Research-status Report
    • Int'l Joint Research
  • [Presentation] Identification of a key regulator of autoimmunity2016

    • Author(s)
      Hiroyuki Takaba and Hiroshi Takayanagi
    • Organizer
      ThymUS 2016
    • Place of Presentation
      Hawaii, USA
    • Year and Date
      2016-06-08
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Identification of a novel key regulator of immune tolerance2015

    • Author(s)
      Hiroyuki Takaba and Hiroshi Takayanagi
    • Organizer
      Keystone symposia, T Cells: Regulation and Effector Function (oral presentation)
    • Place of Presentation
      Snowbird, Utah, USA
    • Year and Date
      2015-03-29 – 2015-04-03
    • Related Report
      2014 Research-status Report
  • [Book] 胸腺におけるT細胞の選択機構2017

    • Author(s)
      高場啓之、高柳広
    • Total Pages
      6
    • Publisher
      臨床免疫・アレルギー科
    • Related Report
      2016 Annual Research Report
  • [Book] 自己免疫疾患を抑制する重要因子の同定2016

    • Author(s)
      高場啓之
    • Total Pages
      7
    • Publisher
      臨床免疫・アレルギー科
    • Related Report
      2016 Annual Research Report

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Published: 2014-04-04   Modified: 2018-03-22  

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