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Molecular immunopathological analysis of clinical phenotype and severity of MOG antibody-associated diseases

Research Project

Project/Area Number 21K07453
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 52020:Neurology-related
Research InstitutionTohoku University

Principal Investigator

TAKAI YOSHIKI  東北大学, 大学病院, 助教 (40725743)

Project Period (FY) 2021-04-01 – 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 2023: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2022: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2021: ¥2,080,000 (Direct Cost: ¥1,600,000、Indirect Cost: ¥480,000)
KeywordsMOG抗体関連疾患 / 中枢性炎症性脱髄疾患 / 補体 / ADEM / 炎症性脱髄疾患 / 視神経脊髄炎 / MOGAD / AQP4 / T細胞 / MOG
Outline of Research at the Start

本研究は、MOG抗体関連疾患において臨床表現型を規定する因子、およびその重症化に影響する炎症病態を明らかにすることを目的とする。特に、MOG抗体関連疾患症例における中枢神経組織を用いた検討を重視している。AQP4抗体陽性NMOSDに対する補体活性阻害薬は極めて高い治療効果を示すが、その着想は、NMOSD症例の剖検組織のおける活性補体沈着所見に由来しており、対象疾患症例の神経組織における詳細な検討は、実臨床に対し非常に有益な情報をもたらす。本研究により、MOG抗体関連疾患の適切な治療法が確立できる可能性があり、臨床的にも価値の高い研究と考えられる。

Outline of Final Research Achievements

MOGAD (Myelin oligodendrocyte glycoprotein antibody-associated disease) is a disease concept established by the discovery of conformation sensitive MOG antibodies. The clinical phenotype is diverse, and the severity and response to treatment vary from case to case, but the factors underlying these differences are unknown. In this study, we found that selective intrathecal MOG antibodies are involved in the clinical phenotype of cortical encephalitis and acute disseminated encephalomyelitis, that intrathecal active complement is elevated in cases of severe MOGAD, and that the activity level of perivascular deposition of complement differs among individuals.

Academic Significance and Societal Importance of the Research Achievements

MOG抗体の存在は古くから知られていたものの、臨床的な意義が再発見されたのは比較的新しく、その根本的な病態が不明な点も多く残されている。特に、重症例や再発抑制困難例が時に認められるものの、その治療法が定まっていない。本研究では、その一端が活性補体に見出される可能性を発見した。これは、今後本疾患を治療する上で、大きな影響を与えうるものと考えられる。一方で、補体活性のレベルが症例毎に異なることも重要な発見であり、抗補体治療を一律に適応することは不適切であることも示唆している。

Report

(3 results)
  • 2023 Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (9 results)

All 2023 2022 2021

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

  • [Journal Article] Diagnostic implications of MOG-IgG detection in sera and cerebrospinal fluids2023

    • Author(s)
      Matsumoto Yuki、Kaneko Kimihiko、Takahashi Toshiyuki、Takai Yoshiki、Namatame Chihiro、Kuroda Hiroshi、Misu Tatsuro、Fujihara Kazuo、Aoki Masashi
    • Journal Title

      Brain

      Volume: - Issue: 9 Pages: 3938-3948

    • DOI

      10.1093/brain/awad122

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Myelin Oligodendrocyte Glycoprotein Antibody-Associated Disease With False-Positive Results in SARS-CoV-2 Antigen Tests: A Case Report2022

    • Author(s)
      Yamamoto Naoki、Ikenouchi Hajime、Takai Yoshiki、Endo Kaoru、Aoki Masashi
    • Journal Title

      Cureus

      Volume: 14

    • DOI

      10.7759/cureus.31514

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] A tumefactive anti-MOG antibody associated disorder heralding central nervous system B-cell lymphoma: Case report on diagnostic challenge2022

    • Author(s)
      Uzura Yasunori、Takeuchi Hayato、Ashida Shinji、Fujii Chihiro、Shishido-Hara Yukiko、Inaba Tohru、Takai Yoshiki、Akazawa Kentaro、Mizuno Toshiki、Hashimoto Naoya
    • Journal Title

      Journal of Neuroimmunology

      Volume: 365 Pages: 577823-577823

    • DOI

      10.1016/j.jneuroim.2022.577823

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Staging of astrocytopathy and complement activation in neuromyelitis optica spectrum disorders2021

    • Author(s)
      nji Okita, Shunichi Sasou, Mika Watanabe, Chihiro Namatame, Yuki MatYoshiki Takai, Tatsuro Misu, Hiroyoshi Suzuki, Toshiyuki Takahashi, Hiromi Okada, Shinya Tanaka, Kesumoto, Hirohiko Ono, Kimihiko Kaneko, Shuhei Nishiyama, Hiroshi Kuroda, Ichiro Nakashima, Hans Lassmann, Kazuo Fujihara, Yasuto Itoyama, Masashi Aoki
    • Journal Title

      Brain

      Volume: 144(8) Issue: 8 Pages: 2401-2415

    • DOI

      10.1093/brain/awab102

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] シンポジウム2 MOG関連疾患とAQP4抗体陽性視神経脊髄炎の相違2022

    • Author(s)
      高井良樹
    • Organizer
      第34回神経免疫学会学術集会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] シンポジウム19 MOGADの病理と病態2022

    • Author(s)
      高井良樹
    • Organizer
      第40回神経治療学会学術集会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] Perivascular macrophage infiltration and the myelin phagocytos is in MOG antibody-associated diseases2021

    • Author(s)
      Y Takai, T Misu, C Namatame, Y Mastumoto, H Ono, K Kaneko, T Takahashi, K Fujihara, M Aoki
    • Organizer
      第62回日本神経学会学術大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Cutting-edge advances in NMOSD and MOG-related disorders2021

    • Author(s)
      Y Takai
    • Organizer
      第62回日本神経学会学術大会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] Pathophysiology of MOGAD2021

    • Author(s)
      Y Takai, T Misu, K Fujihara, Masashi Aoki
    • Organizer
      29th Annual Meeting of the European Charcot Foundation
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research / Invited

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

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