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Immune cell-like functions of epithelial cells induced by MHC-I signal

Research Project

Project/Area Number 21H02768
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 50010:Tumor biology-related
Research InstitutionTokyo University of Pharmacy and Life Science (2023)
Waseda University (2021-2022)

Principal Investigator

Maruyama Takeshi  東京薬科大学, 生命科学部, 教授 (30613872)

Co-Investigator(Kenkyū-buntansha) 大庭 賢二  自治医科大学, 医学部, 講師 (20759576)
河野 恵子  沖縄科学技術大学院大学, 膜生物学ユニット, 准教授 (30632723)
藤枝 俊宣  東京工業大学, 生命理工学院, 准教授 (70538735)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥15,860,000 (Direct Cost: ¥12,200,000、Indirect Cost: ¥3,660,000)
Fiscal Year 2023: ¥7,670,000 (Direct Cost: ¥5,900,000、Indirect Cost: ¥1,770,000)
Fiscal Year 2022: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2021: ¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Keywords貪食様取込 / 発がん制御 / 細胞膜損傷 / 細胞競合 / がん / 細胞死 / 上皮細胞のMHC-I認識 / 細胞間コミュニケーション / 上皮細胞の免疫細胞様機能 / 上皮細胞抗原提示認識
Outline of Research at the Start

本研究では、i) 細胞膜損傷を受けた細胞が周辺正常細胞によって貪食されるメカニズムを解明する。さらに、細胞膜損傷以外のii) どのような細胞外ストレスを受けることが押出・貪食排除の対象になるかへと展開する基盤を構築する。これにより、上皮細胞によるMHC-I認識を基にした押出排除や貪食作用の惹起を介した効率的な発がん関連-異常細胞の排除を促進する、がんの予防的治療医療へと繋げる。

Outline of Final Research Achievements

We have found that epithelial cells not only recognize the MHC-I of cells with membrane damage (MDed cells) and eliminate them through extrusion but also through phagocytosis-like engulfment. Therefore, the aim is to i) elucidate the mechanism by which MDed cells are engulfed by neighboring normal cells. Furthermore, we aim to expand to ii) identify what other extracellular stresses, besides membrane damage, are involved. By constructing a novel peptide array screening system, we have identified candidate molecules as key cell-cell interaction molecules in the mechanism. Based on this, we have identified the core ligands and receptors that trigger phagocytosis-like engulfment, shedding light on a part of the mechanism.

Academic Significance and Societal Importance of the Research Achievements

がん変異細胞の排除、さらには発がんに関わる異常細胞を排除するメカニズムの解明は、「がんを予防する」という観点から必須であり、新規診断法の確立へと繋がると期待できる。これまで見出したalpha3ペプチドや、本研究課題の成果から創出されるであろう貪食様取込みの促進薬などが、まさにこのがん変異細胞を強力に排除する可能性があり、今後予防的にがん変異細胞や異常細胞を排除する医療の確立の道をひらくと期待される。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • Research Products

    (9 results)

All 2024 2023 2022 2021

All Journal Article (7 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (2 results)

  • [Journal Article] Epithelial recognition and elimination against aberrant cells2024

    • Author(s)
      Ayukawa Shiyu、Kamoshita Nagisa、Maruyama Takeshi
    • Journal Title

      Seminars in Immunopathology

      Volume: Online ahead of print. Issue: 4-6 Pages: 521-532

    • DOI

      10.1007/s00281-024-01001-0

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 上皮細胞によるMHC-I認識を介した異常監視2023

    • Author(s)
      鮎川志優, 丸山剛
    • Journal Title

      炎症と免疫

      Volume: 31 (2): Pages: 106-110

    • Related Report
      2023 Annual Research Report
  • [Journal Article] MHC-I受容体を媒介する細胞競合2023

    • Author(s)
      鮎川志優、丸山 剛
    • Journal Title

      炎症と免疫

      Volume: 31(2) Pages: 106-110

    • Related Report
      2022 Annual Research Report
  • [Journal Article] 上皮細胞によるMHC-I認識とがん変異細胞を排除する細胞競合2022

    • Author(s)
      鮎川志優、丸山 剛
    • Journal Title

      臨床免疫・アレルギー科

      Volume: 78 (1) Pages: 104-110

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Cell competition in vertebrates ? a key machinery for tissue homeostasis2022

    • Author(s)
      Maruyama Takeshi、Fujita Yasuyuki
    • Journal Title

      Current Opinion in Genetics & Development

      Volume: 72 Pages: 15-21

    • DOI

      10.1016/j.gde.2021.09.006

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] ASKA technology-based pull-down method reveals a suppressive effect of ASK1 on the inflammatory NOD-RIPK2 pathway in brown adipocytes?2021

    • Author(s)
      Takayanagi Saki、Watanabe Kengo、Maruyama Takeshi、Ogawa Motoyuki、Morishita Kazuhiro、Soga Mayumi、Hatta Tomohisa、Natsume Tohru、Hirano Tomoya、Kagechika Hiroyuki、Hattori Kazuki、Naguro Isao、Ichijo Hidenori
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 22009-22009

    • DOI

      10.1038/s41598-021-01123-7

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Epithelial cells remove precancerous cells by cell competition via MHC class I?LILRB3 interaction2021

    • Author(s)
      Ayukawa Shiyu、Kamoshita Nagisa、Nakayama Jun、Teramoto Ryohei、Pishesha Novalia、Ohba Kenji、Sato Nanami、Kozawa Kei、Abe Hikari、Semba Kentaro、Goda Nobuhito、Fujita Yasuyuki、Maruyama Takeshi
    • Journal Title

      Nature Immunology

      Volume: 22 Issue: 11 Pages: 1391-1402

    • DOI

      10.1038/s41590-021-01045-6

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Epithelial surveillance and elimination of precancerous cells2023

    • Author(s)
      丸山 剛
    • Organizer
      東京工業大学 国際シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] 上皮細胞相互作用による非免疫系を介した異常細胞の排除促進制御2022

    • Author(s)
      丸山 剛
    • Organizer
      BioJapan2022
    • Related Report
      2022 Annual Research Report

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Published: 2021-04-28   Modified: 2025-01-30  

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