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The elucidation of the function of resident memory T cells in graft-versus-host disease

Research Project

Project/Area Number 22K16276
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 53050:Dermatology-related
Research InstitutionUniversity of Tsukuba

Principal Investigator

KUBOTA Noriko  筑波大学, 医学医療系, 講師 (10844847)

Project Period (FY) 2022-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2023: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Fiscal Year 2022: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords移植片対宿主病 / レジデントメモリーT細胞 / CD122 / GVHD / メモリーT細胞 / 自己免疫疾患 / CD8T細胞
Outline of Research at the Start

血液幹細胞移植後合併症である移植片対宿主病(GVHD)の皮疹は、ドナー由来のCD8+T細胞が表皮角化細胞死を誘導することがその病態の主体であるが、そのCD8+T細胞が皮膚組織中のresident memory T細胞(TRM)として留まるのか、またTRMが皮膚GVHDの慢性化に関与するのかは不明である。皮膚TRMはCD122を発現し、interleukin-15の制御を受け維持されており、本研究では、皮膚GVHDモデルでのTRMの存在の有無を探索し、抗CD122遮断抗体で慢性皮膚GVHD症状の進展が抑制されるか検討する。

Outline of Final Research Achievements

Antigen-stimulated naive T cells differentiate into effector and memory T cells, of which resident memory T (TRM) cells reside permanently in organ tissues. Involvement of TRM cells has been indicated in pathological conditions of various skin diseases. CD122, which is the β chain subunit of interleukin (IL)-2 and IL-15 receptors, is expressed on immune cells including TRM cells. We performed experiments to investigate whether CD122 signaling in skin CD8+ TRM cells mediates the development of cutaneous graft-versus-host disease (GVHD). We elucidated that particularly skin memory CD8+ T cells mediate the development of skin GVHD, and blockade of CD122 may be an effective treatment strategy for skin GVHD.

Academic Significance and Societal Importance of the Research Achievements

我々は皮膚GVHDモデルマウスを用いた研究において、移入したドナーT細胞の一部が皮膚TRMとなって皮膚に残存し、慢性化して持続した皮膚症状を形成し、皮膚の線維化に関与していることを解明した。さらにその機序は、抗CD122抗体の投与で抑制されることを証明した。慢性化する皮膚自己免疫疾患のプロトタイプである、皮膚GVHDにおける皮膚TRMの機能を解明した報告はこれまでになく、CD122が、皮膚GVHDに対する新たな治療ターゲットとなり得る可能性を示した。

Report

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

    (2 results)

All 2023

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

  • [Journal Article] Blockade of CD122 on memory T cells in the skin suppresses sclerodermatous graft-versus-host disease2023

    • Author(s)
      Kubota Noriko、Tanaka Ryota、Ichimura Yuki、Konishi Risa、Tso J.Yun、Tsurushita Naoya、Nomura Toshifumi、Okiyama Naoko
    • Journal Title

      Journal of Dermatological Science

      Volume: 109 Issue: 3 Pages: 127-135

    • DOI

      10.1016/j.jdermsci.2023.03.003

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Blockade of CD122 particularly on skin memory T cells suppresses mucocutaneous graft-versus-host disease2023

    • Author(s)
      Kubota N, Tanaka R, Ichimura Y, Konishi R, Tso JY, Tsurushita N, Nomura T, Okiyama N
    • Organizer
      1st International Societies for Investigative Dermatology Meeting
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research

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Published: 2022-04-19   Modified: 2025-01-30  

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