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Mechanisms of pathogenic B cell differentiation associated with genetic risk for systemic lupus erythematosus.

Research Project

Project/Area Number 21H02960
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 54020:Connective tissue disease and allergy-related
Research InstitutionThe University of Tokyo

Principal Investigator

Fujio Keishi  東京大学, 医学部附属病院, 教授 (70401114)

Co-Investigator(Kenkyū-buntansha) 岡村 僚久  東京大学, 医学部附属病院, 特任准教授 (10528996)
Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,420,000 (Direct Cost: ¥13,400,000、Indirect Cost: ¥4,020,000)
Fiscal Year 2023: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2022: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2021: ¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Keywords自己免疫疾患 / 疾患感受性多型 / マウスモデル / 全身性エリテマトーデス / 遺伝素因 / B細胞 / オートファジー
Outline of Research at the Start

申請者らが構築したImmuNexUTは、免疫介在性疾患418例からの末梢血免疫担当細胞28サブセット由来の情報からなり、従来よりも高い解析力を持つ世界最大規模の機能ゲノムデータベースである。本研究ではImmuNexUTにおいて精密なcis-eQTL解析とcontext dependent-QTL解析を組み合わせることにより、SLE疾患感受性多型の標的遺伝子LRRC25とLYSTを同定したという成果を基盤としている点が特徴である。本研究はImmuNexUTにおけるtrans-QTL解析と細胞免疫学的実験を統合して、動物モデルを駆使してSLEにおけるB細胞機能を解明する。

Outline of Final Research Achievements

Using the world's largest functional genome database, ImmuNexUT, we identified Age-associated T cells (ThA cells) as T cells that potentially promote the differentiation of Age-associated B cells (ABCs). We revealed that their phenotype is defined by ZEB2 (Science Immunol 2024). We comprehensively assessed the context-dependent QTL effects of ZEB2 and identified ROR2, THEMIS2, PADI6, and PLOD1 as target genes of ZEB2. Additionally, we discovered that LRRC25-deficient mice exhibit autoimmune pathologies such as enhanced serum IgG production, abnormal differentiation of spleen B cells and plasmablasts, and early mortality.

Academic Significance and Societal Importance of the Research Achievements

今回の研究では、抗体産生促進能と細胞傷害活性を併せ持ち、加齢と自己免疫疾患で増加する新しいThA細胞を同定した。ThA細胞の遺伝子変動は、SLEの疾患活動性を非常に強く反映しており、ThA細胞が自己免疫疾患の新たな治療ターゲットになる可能性が示唆された。加齢で増加するThA細胞が自己免疫疾患において中心的役割を果たしていることから、ThA細胞の更なる研究は、自己免疫応答と健康長寿の違いを知ることができる可能性を内包しており、今後の治療応用への展開が期待される。

Report

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

    (12 results)

All 2024 2023 2022 2021

All Journal Article (11 results) (of which Int'l Joint Research: 4 results,  Peer Reviewed: 10 results,  Open Access: 5 results) Presentation (1 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] Machine learning-driven immunophenotypic stratification of mixed connective tissue disease, corroborating the clinical heterogeneity2024

    • Author(s)
      Izuka Shinji、Komai Toshihiko、Itamiya Takahiro、Ota Mineto、Nagafuchi Yasuo、Shoda Hirofumi、Matsuki Kosuke、Yamamoto Kazuhiko、Okamura Tomohisa、Fujio Keishi
    • Journal Title

      Rheumatology

      Volume: - Issue: 3 Pages: 1409-1416

    • DOI

      10.1093/rheumatology/keae158

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] B cell receptor repertoire abnormalities in autoimmune disease2024

    • Author(s)
      Yuuki Hayato、Itamiya Takahiro、Nagafuchi Yasuo、Ota Mineto、Fujio Keishi
    • Journal Title

      Frontiers in Immunology

      Volume: 15

    • DOI

      10.3389/fimmu.2024.1326823

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Age-associated CD4+ T cells with B cell-promoting functions are regulated by ZEB2 in autoimmunity.2024

    • Author(s)
      Goto M, Takahashi H, Yoshida R, Itamiya T, Nakano M, Nagafuchi Y, Harada H, Shimizu T, Maeda M, Kubota A, Toda T, Hatano H, Sugimori Y, Kawahata K, Yamamoto K, Shoda H, Ishigaki K, Ota M, Okamura T, Fujio K.
    • Journal Title

      Sci Immunol.

      Volume: 9 Issue: 93 Pages: 1-16

    • DOI

      10.1126/sciimmunol.adk1643

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Multimodal repertoire analysis unveils B cell biology in immune-mediated diseases2023

    • Author(s)
      Ota Mineto、Nakano Masahiro、Nagafuchi Yasuo、Kobayashi Satomi、Hatano Hiroaki、Yoshida Ryochi、Akutsu Yuko、Itamiya Takahiro、Ban Nobuhiro、Tsuchida Yumi、Shoda Hirofumi、Yamamoto Kazuhiko、Ishigaki Kazuyoshi、Okamura Tomohisa、Fujio Keishi
    • Journal Title

      Annals of the Rheumatic Diseases

      Volume: 82 Issue: 11 Pages: 1455-1463

    • DOI

      10.1136/ard-2023-224421

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Functional evaluation of rare OASL variants by analysis of SLE patient-derived iPSCs2023

    • Author(s)
      Natsumoto Bunki、Shoda Hirofumi、Nagafuchi Yasuo、Ota Mineto、Okumura Takashi、Horie Yumi、Okamura Tomohisa、Yamamoto Kazuhiko、Tsuji Motonori、Otsu Makoto、Taniguchi Hideki、Fujio Keishi
    • Journal Title

      Journal of Autoimmunity

      Volume: 139 Pages: 103085-103085

    • DOI

      10.1016/j.jaut.2023.103085

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Autotaxin is a potential link between genetic risk factors and immunological disturbances of plasmacytoid dendritic cells in systematic lupus erythematosus2022

    • Author(s)
      Tsuchida Yumi、Shoda Hirofumi、Nakano Masahiro、Ota Mineto、Okamura Tomohisa、Yamamoto Kazuhiko、Kurano Makoto、Yatomi Yutaka、Fujio Keishi、Sawada Tetsuji
    • Journal Title

      Lupus

      Volume: 31 Issue: 13 Pages: 1578-1585

    • DOI

      10.1177/09612033221128494

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] AFF3, a susceptibility factor for autoimmune diseases, is a molecular facilitator of immunoglobulin class switch recombination2022

    • Author(s)
      Tsukumo Shin-ichi、Subramani Poorani Ganesh、Seija Noe、Tabata Mizuho、Maekawa Yoichi、Mori Yuya、Ishifune Chieko、Itoh Yasushi、Ota Mineto、Fujio Keishi、Di Noia Javier M.、Yasutomo Koji
    • Journal Title

      Science Advances

      Volume: 8 Issue: 34 Pages: 1-15

    • DOI

      10.1126/sciadv.abq0008

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Distinct transcriptome architectures underlying lupus establishment and exacerbation2022

    • Author(s)
      Nakano Masahiro et al.
    • Journal Title

      Cell

      Volume: 185 Issue: 18 Pages: 3375-3389.e21

    • DOI

      10.1016/j.cell.2022.07.021

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Combined plasma metabolomic and transcriptomic analysis identify histidine as a biomarker and potential contributor in SLE pathogenesis2022

    • Author(s)
      Iwasaki Yukiko、Takeshima Yusuke、Nakano Masahiro、Okubo Mai、Ota Mineto、Suzuki Akari、Kochi Yuta、Okamura Tomohisa、Endo Takaho、Miki Ichiro、Sakurada Kazuhiro、Yamamoto Kazuhiko、Fujio Keishi
    • Journal Title

      Rheumatology

      Volume: 62 Issue: 2 Pages: 905-913

    • DOI

      10.1093/rheumatology/keac338

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Immune cell multiomics analysis reveals contribution of oxidative phosphorylation to B-cell functions and organ damage of lupus2022

    • Author(s)
      Takeshima Yusuke、Iwasaki Yukiko、Nakano Masahiro、Narushima Yuta、Ota Mineto、Nagafuchi Yasuo、Sumitomo Shuji、Okamura Tomohisa、Elkon Keith、Ishigaki Kazuyoshi、Suzuki Akari、Kochi Yuta、Yamamoto Kazuhiko、Fujio Keishi
    • Journal Title

      Annals of the Rheumatic Diseases

      Volume: - Issue: 6 Pages: 845-853

    • DOI

      10.1136/annrheumdis-2021-221464

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Dynamic landscape of immune cell-specific gene regulation in immune-mediated diseases2021

    • Author(s)
      Ota M, Nagafuchi Y, Hatano H, Ishigaki K, Terao C, Takeshima Y, Yanaoka H, Kobayashi S, Okubo M, Shirai H, Sugimori Y, Maeda J, Nakano M, Yamada S, Yoshida R, Tsuchiya H, Tsuchida Y, Iwasaki Y, Sumitomo S, Shoda H, Kochi Y, Okada Y, Yamamoto K, Okamura T, Fujio K, et al.
    • Journal Title

      Cell

      Volume: 184 Issue: 11 Pages: 1-16

    • DOI

      10.1016/j.cell.2021.03.056

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Presentation] The skewing of the B cell receptor repertoire in unswitched memory B cells correlates with the disease activity of systemic lupus erythematosus2023

    • Author(s)
      Keishi Fujio
    • Organizer
      The 52nd Annual Meeting of The Japanese Society for Immunology
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited

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

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