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Development of novel therapeutic approach and realization of personalized medicine in multiple sclerosis

Research Project

Project/Area Number 18K15473
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 52020:Neurology-related
Research InstitutionKyoto University

Principal Investigator

Kimura Kimitoshi  京都大学, 医学研究科, 特定講師 (10807093)

Project Period (FY) 2022-12-19 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Fiscal Year 2018: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
Keywords多発性硬化症 / 個別化医療 / T細胞 / B細胞 / 血液浄化療法 / Th1細胞 / CD11c+ B細胞 / 自己抗体 / バイオマーカー / 個別化治療 / エクソソーム / miRNA
Outline of Research at the Start

多発性硬化症(MS)は、自分の免疫が、脳・脊髄を誤って攻撃してしまうことで発症する疾患である。生涯にわたって神経障害が蓄積する難治性疾患であるが、病態に多様性があり、最適な治療法の選択が難しい。実際に、MSの治療として血液浄化療法が施行されるが、無効例が存在し、事前の効果予測は困難である。本研究は、患者さん毎の個別化医療実現のためのバイオマーカー同定、ならびに新規治療標的同定を目指して開始した。これまでに、治療直前の血液中に存在するTh1細胞というリンパ球の頻度に基づいて、治療効果が高精度に予測できることを見出した。今後は、さらに詳細な解析を行い、新規治療標的の同定を目指す。

Outline of Final Research Achievements

Multiple sclerosis (MS) is an autoimmune disease of the central nervous system. The neurological burden accumulates gradually throughout the life after the onset of the disease typically at 30s. Plasmapheresis is used to treat the patients with MS, though the therapeutic response varies among the patients. It is still difficult to predict the response. We thoroughly analyzed the immune cells before and after plasmapheresis, and found that Th1 cell-CD11c+ B cell axis is closely associated with treatment response to plasmapheresis. The inflammatory phenotype of Th1 cells was ameliorated, and CD11c+ B cell frequency decreased after plasmapheresis. Th1 cell frequency showed a high predictive value, which may lead to the precision medicine in the future.

Academic Significance and Societal Importance of the Research Achievements

本研究では、Th1細胞-CD11c+ B細胞の免疫機構の働きが目立つ多発性硬化症(MS)患者において、血液浄化療法の効果が認められることを見出した。血中のTh1細胞頻度を測定することで、個別化医療を実現できる可能性がある。また、CD11c+ B細胞の機能を詳細に解析し、病態への関与を示したことは、今後の新規治療開発に寄与するものと考えている。また、MSは罹患者の受ける影響が大きく、医療費等の社会的負担も大きい疾患である。上記により個別化医療を実現できれば、患者の身体的負担の軽減のみならず、医療費削減にもつながると考える。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2019 Annual Research Report
  • 2018 Research-status Report
  • Research Products

    (18 results)

All 2024 2019 2018

All Journal Article (8 results) (of which Peer Reviewed: 4 results,  Open Access: 2 results) Presentation (9 results) (of which Int'l Joint Research: 3 results,  Invited: 1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Resident Memory-like CD8+ T Cells Are Involved in Chronic Inflammatory and Neurodegenerative Diseases in the CNS2024

    • Author(s)
      Kimura Kimitoshi、Nishigori Ryusei、Hamatani Mio、Sawamura Masanori、Ashida Shinji、Fujii Chihiro、Takata Masaki、Lin Youwei、Sato Wakiro、Okamoto Tomoko、Kuzuya Akira、Takahashi Ryosuke、Yamamura Takashi、Kondo Takayuki
    • Journal Title

      Neurology Neuroimmunology & Neuroinflammation

      Volume: 11 Issue: 1

    • DOI

      10.1212/nxi.0000000000200172

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Clinical characteristics of autoimmune disorders in the central nervous system associated with myasthenia gravis2019

    • Author(s)
      Kimura Kimitoshi、Okada Yoichiro、Fujii Chihiro、Komatsu Kenichi、Takahashi Ryosuke、Matsumoto Sadayuki、Kondo Takayuki
    • Journal Title

      Journal of Neurology

      Volume: 266 Issue: 11 Pages: 2743-2751

    • DOI

      10.1007/s00415-019-09461-3

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 多発性硬化症と制御性T細胞2019

    • Author(s)
      山村隆、木村公俊
    • Journal Title

      医学のあゆみ

      Volume: 268 Pages: 1229-1233

    • Related Report
      2019 Annual Research Report 2018 Research-status Report
  • [Journal Article] The Role for Exosomal microRNAs in Disruption of Regulatory T Cell Homeostasis in Multiple Sclerosis2018

    • Author(s)
      Kimura Kimitoshi、Hohjoh Hirohiko、Yamamura Takashi
    • Journal Title

      Journal of Experimental Neuroscience

      Volume: 12

    • DOI

      10.1177/1179069518764892

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Circulating exosomes cause loss of immunological balance in multiple sclerosis2018

    • Author(s)
      Kimura Kimitoshi、Yamamura Takashi
    • Journal Title

      Clinical and Experimental Neuroimmunology

      Volume: 9 Issue: 4 Pages: 209-210

    • DOI

      10.1111/cen3.12474

    • Related Report
      2018 Research-status Report
    • Peer Reviewed
  • [Journal Article] 多発性硬化症において、血中のエクソソームが制御性T細胞の分化を抑制する2018

    • Author(s)
      木村公俊、北條浩彦、山村隆
    • Journal Title

      実験医学

      Volume: 36 Pages: 1497-1500

    • Related Report
      2018 Research-status Report
  • [Journal Article] 多発性硬化症において循環血中のエクソソームはlet-7i を介して制御性T細胞の分化を抑制する2018

    • Author(s)
      木村公俊、北條浩彦、山村隆
    • Journal Title

      臨床免疫・アレルギー科

      Volume: 70 Pages: 129-135

    • Related Report
      2018 Research-status Report
  • [Journal Article] 多発性硬化症2018

    • Author(s)
      木村公俊、山村隆
    • Journal Title

      Progress in Medicine

      Volume: 38 Pages: 1311-1317

    • Related Report
      2018 Research-status Report
  • [Presentation] Response to Plasmapheresis is Predicted by the Th1 Cell Frequency in the Blood in Multiple Sclerosis2019

    • Author(s)
      Kimitoshi Kimura, Youwei Lin, Wakiro Sato, Ryosuke Takahashi, Takashi Yamamura
    • Organizer
      Federation of Clinical Immunology Societies Annual Meeting 2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] マイクロRNAを介したエクソソームによる多発性硬化症の病態2019

    • Author(s)
      木村公俊
    • Organizer
      第3回Liquid Biopsy研究会
    • Related Report
      2019 Annual Research Report 2018 Research-status Report
    • Invited
  • [Presentation] Th1 cell frequency is an accurate predictor of responders to plasmapheresis in multiple sclerosis2019

    • Author(s)
      Kimitoshi Kimura, Youwei Lin, Wakiro Sato, Ryosuke Takahashi, Takashi Yamamura
    • Organizer
      第60回日本神経学会学術大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Clinical and immunological efficacy of plasmapheresis in MS and NMO refractory to steroid pulse therapy2019

    • Author(s)
      Youwei Lin, Kimitoshi Kimura, Yoko Yamada, Wakiro Sato, Manabu Araki, Tomoko Okamoto, Seiichi Yasuda, Takashi Yamamura, Yuji Takahashi
    • Organizer
      第60回日本神経学会学術大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] ステロイドパルス療法で寛解不充分なMS・NMOにおける血液浄化療法の有効性と免疫学的指標2019

    • Author(s)
      林 幼偉、木村 公俊、坪田 佳代子、佐藤 和貴朗、荒木 学、岡本 智子、登坂 一眞、安田 聖一、山村 隆、高橋 祐二
    • Organizer
      第31回日本神経免疫学会学術集会
    • Related Report
      2019 Annual Research Report
  • [Presentation] The efficacy of plasmapheresis for multiple sclerosis and neuromyelitis optica unresponsive to steroid-pulse therapy and its immunological prognostic markers2019

    • Author(s)
      Youwei Lin, Kimitoshi Kimura, Kayoko Tsubota, Wakiro Sato, Manabu Araki, Tomoko Okamoto, Kazuma Tosaka, Seiichi Yasuda, Takashi Yamamura, Yuji Takahashi
    • Organizer
      The Joint meeting of the 12th World Congress of International Society for Apheresis and the 40th Annual Meeting of Japanease Society for Apheresis
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Successful response to plasmapheresis is mediated by phenotypic change of Th1 cells in multiple sclerosis2018

    • Author(s)
      Kimitoshi Kimura, Youwei Lin, Wakiro Sato, Ryosuke Takahashi, Takashi Yamamura
    • Organizer
      14th International Congress of Neuroimmunology
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 多発性硬化症におけるmiRNAを介したエクソソームの関与2018

    • Author(s)
      木村公俊
    • Organizer
      東京農工大学-国立精神・神経医療研究センター 第4回合同シンポジウム
    • Related Report
      2018 Research-status Report
  • [Presentation] 多発性硬化症への免疫吸着療法における、T細胞解析に基づいた個別化医療実現と作用機序解明2018

    • Author(s)
      木村公俊、林幼偉、佐藤和貴郎、髙橋良輔、山村隆
    • Organizer
      第30回日本神経免疫学会学術集会
    • Related Report
      2018 Research-status Report
  • [Patent(Industrial Property Rights)] 血液浄化療法の臨床的有効性を予測するためのデータを収集する方法2018

    • Inventor(s)
      木村公俊、林幼偉、山村隆
    • Industrial Property Rights Holder
      国立精神・神経医療研究センター
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2018-155801
    • Filing Date
      2018
    • Related Report
      2018 Research-status Report

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Published: 2018-04-23   Modified: 2025-01-30  

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