• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Artificial control technology of antigen presentation by regulation of MHC expression

Research Project

Project/Area Number 22K19415
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 49:Pathology, infection/immunology, and related fields
Research InstitutionHokkaido University

Principal Investigator

Hatakeyama Shigetsugu  北海道大学, 医学研究院, 教授 (70294973)

Project Period (FY) 2022-06-30 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2023: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2022: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywordsユビキチン / MHC / 自己免疫疾患 / 抗原提示
Outline of Research at the Start

ユビキチン-プロテアソーム系やオートファジーや分子シャペロン系は抗原タンパク質の産生に重要な細胞内タンパク質分解システムである。本申請ではオートファジーや抗原提示に関与するTRIM型ユビキチンリガーゼを中心にE3ユビキチンリガーゼによる抗原提示制御の解明を進め、さらにその制御システムの破綻が自己免疫疾患やアレルギー疾患の発症に関与するかを検討する。MHC分子の発現に関するTRIMタンパク質の同定をもとに、最終的には抗原提示細胞におけるMHC発現を人為的に調節することによる免疫調節的治療法の開発基盤を確立する。

Outline of Final Research Achievements

The ubiquitin-proteasome system and autophagy are intracellular protein degradation systems important for the production of antigenic proteins. Many intracellular proteins are degraded by the ubiquitin-proteasome system and presented as antigenic peptides on MHC class I via the endoplasmic reticulum. In addition, peptide antigens which are degraded by the autophagy system enter the endoplasmic reticulum, and are presented on MHC class II. In this application, we proceeded to elucidate the regulation of antigen presentation by E3 ubiquitin ligases, focusing on TRIM-type ubiquitin ligases involved in autophagy and antigen presentation.

Academic Significance and Societal Importance of the Research Achievements

免疫疾患の発症において、免疫細胞のセレクション過程に異常も想定されるが、抗原側の質的及び量的な異常が、免疫細胞を活性化し疾患が発症することも推定される。さらに、生体の免疫反応では「affinity」だけでなく「avidity(affinityの総和)」も重要であり、「抗原の質」だけでなく、「抗原の量」の変化も免疫反応を左右すると考えられる。本研究はMHC発現制御に関する遺伝子の探索的意味合いがある。今後、本研究の成果は、新規の免疫反応の調節剤開発(自己免疫疾患、アレルギー性疾患、炎症性疾患、感染症等)のための知見を提供する可能性がある。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • Research Products

    (6 results)

All 2023 2022

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 3 results) Presentation (2 results)

  • [Journal Article] FBXO11 constitutes a major negative regulator of MHC class II through ubiquitin-dependent proteasomal degradation of CIITA2023

    • Author(s)
      Kasuga Yusuke、Ouda Ryota、Watanabe Masashi、Sun Xin、Kimura Miki、Hatakeyama Shigetsugu、Kobayashi Koichi S.
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 120 Issue: 24

    • DOI

      10.1073/pnas.2218955120

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Sez6l2 autoimmunity in a large cohort study2023

    • Author(s)
      Abe M, Yaguchi H, Kudo A, Nagai A, Shirai S, Takahashi-Iwata I, Matsushima M, Nakamura N, Isahaya K, Yamano Y, Ashida S, Kasai T, Tanaka K, Watanabe M, Kondo T, Takahashi H, Hatakeyama S, Takekoshi A, Kimura A, Shimohata T, Yabe I.
    • Journal Title

      Journal of Neurology, Neurosurgery & Psychiatry

      Volume: 94 Issue: 8 Pages: 667-668

    • DOI

      10.1136/jnnp-2022-330194

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] TRIM27 expression is associated with poor prognosis in sinonasal mucosal melanoma2023

    • Author(s)
      Kimura S、Suzuki M、Nakamaru Y、Kano S、Watanabe M、Honma A、Nakazono A、Tsushima N、Hatakeyama S、Homma A
    • Journal Title

      Rhinology Journal

      Volume: - Issue: 0 Pages: 0-0

    • DOI

      10.4193/rhin22.405

    • Related Report
      2023 Annual Research Report 2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] TRIM22 negatively regulates MHC-II expression2022

    • Author(s)
      Inoue Ayano、Watanabe Masashi、Kondo Takeshi、Hirano Satoshi、Hatakeyama Shigetsugu
    • Journal Title

      Biochimica et Biophysica Acta (BBA) - Molecular Cell Research

      Volume: 1869 Issue: 10 Pages: 119318-119318

    • DOI

      10.1016/j.bbamcr.2022.119318

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Presentation] がん遺伝子産物PPM1Dのタンパク質分解機構2023

    • Author(s)
      渡部昌, 高橋正樹, 畠山鎮次
    • Organizer
      日本分子生物学会年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 自己免疫性小脳失調症に対する免疫沈降法と質量分析法を用いた網羅的自己抗体測定方法の開発2023

    • Author(s)
      工藤 彰彦, 矢口 裕章, 渡部 昌, 上床 尚, 白井 慎一, 岩田 育子, 松島 理明, 高橋 秀尚, 畠山 鎮次, 矢部 一郎
    • Organizer
      日本神経免疫学会
    • Related Report
      2023 Annual Research Report

URL: 

Published: 2022-07-05   Modified: 2025-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi