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2023 Fiscal Year Research-status Report

Single-cell analysis of autoantigen-reactive B cells in systemic sclerosis and development of novel therapeutic targets

Research Project

Project/Area Number 22K16258
Research InstitutionThe University of Tokyo

Principal Investigator

深澤 毅倫  東京大学, 医学部附属病院, 特任講師 (80884056)

Project Period (FY) 2022-04-01 – 2025-03-31
Keywords全身性強皮症 / サイトカイン / B細胞 / T細胞 / モデルマウス
Outline of Annual Research Achievements

本研究では、マイクロ空間を用いた独自の技術と方法論を用い、全身性強皮症(systemic sclerosis; SSc)における自己反応性B細胞の機能と役割を明らかにす
ることを目的とした。まず抗Topoisomerase(topo) I抗体陽性SSc患者における末梢血中のtopoI特異的B細胞を抽出し、サイトカイン産生能などの解析を行った。
様々なサイトカインのうち、Interleukin (IL)-6やIL-23などの炎症性サイトカインを産生するB細胞やIL-10やIL-35などの抑制性サイトカインを産生するB細胞
がtopo I特異的B細胞集団中に存在することを見出した。これらの細胞内シグナル伝達経路やサイトカインがB細胞に与える機能解析を行い、それぞれの細胞集団に特徴的な経路が見られた。
次に強皮症モデルマウス解析に関して、topoI誘発SScモデルマウスを用いた。B細胞のaffinityの上昇とサイトカイン産生能の関係について検討を行った。topo I蛋白を免疫する毎にB細胞のtopo Iに対するaffinityは強められた。low affinityなB細胞が多いモデルでは、抑制性のサイトカインを産生するB細胞の割合が多く、high affinityなB細胞が多いモデルでは、炎症性サイトカインを産生する割合が多かった。
コンディショナルノックアウトマウスを用い、特定のサイトカインが強皮症の病態形成に与える影響について検討を行い、ある特定のサイトカインが強皮症の病態形成に重要であることが示唆された。

Current Status of Research Progress
Current Status of Research Progress

1: Research has progressed more than it was originally planned.

Reason

モデルマウス作成や解析などが順調に進んでいるため。

Strategy for Future Research Activity

全身性強皮症やそのモデルマウスにおけるサイトカインの役割を明らかにし、新たな治療標的の同定に役立てることを目的とする。

Causes of Carryover

当初計画は十分に練られていたが、研究の進展に伴い、当初予期し得なかった新たな知見が得られ、これを使用してより高度の研究成果を得るために、新たな知見の分析を行う研究計画や予定していた研究の一部を次年度に回した。これらは最も適切であり、他の方法では代替できないものである。

  • Research Products

    (16 results)

All 2024 2023

All Journal Article (16 results) (of which Int'l Joint Research: 16 results,  Peer Reviewed: 16 results,  Open Access: 16 results)

  • [Journal Article] Autoantibodies to nuclear valosin-containing protein-like protein: systemic sclerosis-specific antibodies revealed by in vitro human proteome2024

    • Author(s)
      Matsuda Kazuki M, Fukasawa Takemichi et al.
    • Journal Title

      Rheumatology

      Volume: - Pages: -

    • DOI

      10.1093/rheumatology/keae063

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The role of B cells in systemic sclerosis2024

    • Author(s)
      Fukasawa Takemichi、Yoshizaki‐Ogawa Asako、Sato Shinichi、Yoshizaki Ayumi
    • Journal Title

      The Journal of Dermatology

      Volume: - Pages: -

    • DOI

      10.1111/1346-8138.17134

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Dual blockade of interleukin-17A and interleukin-17F as a therapeutic strategy for liver fibrosis: Investigating the potential effect and mechanism of brodalumab2024

    • Author(s)
      Matsuda Kazuki M.、Kotani Hirohito、Hisamoto Teruyoshi、Kuzumi Ai、Fukasawa Takemichi、Yoshizaki-Ogawa Asako、Sato Shinichi、Yoshizaki Ayumi
    • Journal Title

      Cytokine

      Volume: 178 Pages: 156587~156587

    • DOI

      10.1016/j.cyto.2024.156587

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Cannabinoids for the treatment of autoimmune and inflammatory skin diseases: A systematic review2024

    • Author(s)
      Kuzumi Ai、Yamashita Takashi、Fukasawa Takemichi、Yoshizaki‐Ogawa Asako、Sato Shinichi、Yoshizaki Ayumi
    • Journal Title

      Experimental Dermatology

      Volume: 33 Pages: -

    • DOI

      10.1111/exd.15064

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Reliability, validity, and sensitivity of the Japanese version of the University of California Los Angeles scleroderma clinical trial consortium gastrointestinal tract instrument: Application to efficacy assessment of intravenous immunoglobulin administration2024

    • Author(s)
      Matsuda Kazuki M.、Sugimoto Eiki、Ako Yoshiaki、Kitamura Marie、Miyahara Mai、Kotani Hirohito、Norimatsu Yuta、Hisamoto Teruyoshi、Kuzumi Ai、Fukasawa Takemichi、Sato Shinichi、Yoshizaki Ayumi
    • Journal Title

      The Journal of Dermatology

      Volume: - Pages: -

    • DOI

      10.1111/1346-8138.17202

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Deregulated JNK signaling enhances apoptosis during hyperthermia2024

    • Author(s)
      Enomoto Atsushi、Fukasawa Takemichi、Terunuma Hiroshi、Nakagawa Keiichi、Yoshizaki Ayumi、Sato Shinichi、Hosoya Noriko、Miyagawa Kiyoshi
    • Journal Title

      International Journal of Hyperthermia

      Volume: 41 Pages: -

    • DOI

      10.1080/02656736.2024.2335199

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Significance of anti-transcobalamin receptor antibodies in cutaneous arteritis revealed by proteome-wide autoantibody screening2023

    • Author(s)
      Matsuda Kazuki M., Fukasawa Takemichi et al.
    • Journal Title

      Journal of Autoimmunity

      Volume: 135 Pages: 102995~102995

    • DOI

      10.1016/j.jaut.2023.102995

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Long-term Outcomes After Rituximab Treatment for Patients With Systemic Sclerosis2023

    • Author(s)
      Kuzumi Ai、Ebata Satoshi、Fukasawa Takemichi、Matsuda Kazuki M.、Kotani Hirohito、Yoshizaki-Ogawa Asako、Sato Shinichi、Yoshizaki Ayumi
    • Journal Title

      JAMA Dermatology

      Volume: 159 Pages: 374~374

    • DOI

      10.1001/jamadermatol.2022.6340

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Interleukin-17 pathway inhibition with brodalumab in early systemic sclerosis: Analysis of a single-arm, open-label, phase 1 trial2023

    • Author(s)
      Fukasawa Takemichi、Yoshizaki Ayumi、Ebata Satoshi、Fukayama Maiko、Kuzumi Ai、Norimatsu Yuta、Matsuda Kazuki M.、Kotani Hirohito、Sumida Hayakazu、Yoshizaki-Ogawa Asako、Kagebayashi Hisashi、Sato Shinichi
    • Journal Title

      Journal of the American Academy of Dermatology

      Volume: 89 Pages: 366~369

    • DOI

      10.1016/j.jaad.2023.02.061

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The Role of Mammalian STK38 in DNA Damage Response and Targeting for Radio-Sensitization2023

    • Author(s)
      Fukasawa Takemichi、Enomoto Atsushi、Yoshizaki-Ogawa Asako、Sato Shinichi、Miyagawa Kiyoshi、Yoshizaki Ayumi
    • Journal Title

      Cancers

      Volume: 15 Pages: 2054~2054

    • DOI

      10.3390/cancers15072054

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Impact of guselkumab on three cases of SSc accompanying psoriasis2023

    • Author(s)
      Fukasawa Takemichi、Yoshizaki-Ogawa Asako、Yoshizaki Ayumi、Sato Shinichi
    • Journal Title

      Rheumatology

      Volume: 63 Pages: e6~e8

    • DOI

      10.1093/rheumatology/kead287

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Utility of nailfold capillary assessment for predicting pustulotic arthro-osteitis in palmoplantar pustulosis based on a prospective cohort study2023

    • Author(s)
      Fukasawa Takemichi、Yamashita Takashi、Enomoto Atsushi、Toyama Satoshi、Yoshizaki-Ogawa Asako、Tateishi Shoko、Kanda Hiroko、Miyagawa Kiyoshi、Sato Shinichi、Yoshizaki Ayumi
    • Journal Title

      Journal of the American Academy of Dermatology

      Volume: 89 Pages: 984~991

    • DOI

      10.1016/j.jaad.2023.07.1014

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Optimal treatments and outcome measures of palmoplantar pustulosis: A systematic review and network meta‐analysis‐based comparison of treatment efficacy2023

    • Author(s)
      Fukasawa Takemichi、Yamashita Takashi、Enomoto Atsushi、Yoshizaki‐Ogawa Asako、Miyagawa Kiyoshi、Sato Shinichi、Yoshizaki Ayumi
    • Journal Title

      Journal of the European Academy of Dermatology and Venereology

      Volume: 38 Pages: 281~288

    • DOI

      10.1111/jdv.19499

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Comprehensive autoantibody profiling in systemic autoimmunity by a highly-sensitive multiplex protein array2023

    • Author(s)
      Kuzumi Ai、Norimatsu Yuta、Matsuda Kazuki M.、Ono Chihiro、Okumura Taishi、Kogo Emi、Goshima Naoki、Fukasawa Takemichi、Fushida Natsumi、Horii Motoki、Yamashita Takashi、Yoshizaki-Ogawa Asako、Yamaguchi Kei、Matsushita Takashi、Sato Shinichi、Yoshizaki Ayumi
    • Journal Title

      Frontiers in Immunology

      Volume: 14 Pages: -

    • DOI

      10.3389/fimmu.2023.1255540

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The Autoantibody Array Assay: A Novel Autoantibody Detection Method2023

    • Author(s)
      Norimatsu Yuta、Matsuda Kazuki Mitsuru、Yamaguchi Kei、Ono Chihiro、Okumura Taishi、Kogo Emi、Kotani Hirohito、Hisamoto Teruyoshi、Kuzumi Ai、Fukasawa Takemichi、Yoshizaki-Ogawa Asako、Goshima Naoki、Sato Shinichi、Yoshizaki Ayumi
    • Journal Title

      Diagnostics

      Volume: 13 Pages: 2929~2929

    • DOI

      10.3390/diagnostics13182929

    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The optimal use of tildrakizumab in the elderly via improvement of Treg function and its preventive effect of psoriatic arthritis2023

    • Author(s)
      Fukasawa Takemichi、Yamashita Takashi、Enomoto Atsushi、Norimatsu Yuta、Toyama Satoshi、Yoshizaki-Ogawa Asako、Tateishi Shoko、Kanda Hiroko、Miyagawa Kiyoshi、Sato Shinichi、Yoshizaki Ayumi
    • Journal Title

      Frontiers in Immunology

      Volume: 14 Pages: -

    • DOI

      10.3389/fimmu.2023.1286251

    • Peer Reviewed / Open Access / Int'l Joint Research

URL: 

Published: 2024-12-25  

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