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The pathologic clarification of Plexin D1-IgG-related neuropathic pain

Research Project

Project/Area Number 19K17037
Research Category

Grant-in-Aid for Early-Career Scientists

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

Principal Investigator

Fujii Takayuki  九州大学, 病院, 医員 (30822481)

Project Period (FY) 2019-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2019: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Keywords神経障害性疼痛 / 抗Plexin D1抗体 / 自己抗体 / 小径線維ニューロパチー / 受動免疫動物モデル / 抗plexin D1抗体
Outline of Research at the Start

神経障害性疼痛は原因不明で病態未解明のことが多く難治性である。私たちは、神経障害性疼痛に関連した自己抗体として抗plexin D1抗体を発見し、免疫介在性神経障害性疼痛という疾患概念を提唱している。抗体産生のリスク因子として、アレルギー疾患、膠原病、癌を報告した。本研究では、①抗plexin D1抗体の各種疼痛疾患での有病率の検討、②癌でのplexin D1の発現解析、③HLA等の免疫遺伝学的背景の検討、④動物モデル作成を通じた病態解明を行なう。これにより、抗plexin D1抗体の免疫性神経障害性疼痛診断マーカーとしての意義を確立し、作用機序の解明を通じて免疫療法の開発へつなげる。

Outline of Final Research Achievements

In this study, we determined whether anti-Plexin D1 antibody (Plexin D1-IgG), which is associated with neuropathic pain (NP) and binds to pain-conducting small unmyelinated dorsal root ganglion neurons, exists in patients with idiopathic painful trigeminal neuropathy (IPTN) and small fiber neuropathy (SFN). Serum Plexin D1-IgG was detected in 14.3% of IPTN patients and 12.7% of SFN patients. Plexin D1-IgG derived from NP patients could induce a mechanical pain hypersensitivity by passive transfer to mice 24 h after intrathecal injection. Plexin D1-IgG is pathogenic but with low prevalence in IPTN and SFN.

Academic Significance and Societal Importance of the Research Achievements

本研究により、抗Plexin D1抗体が生体内において神経障害性疼痛の発症における病原性を有することが明らかとなり、また、これまで原因不明とされてきた神経障害性疼痛疾患の一部において存在することが示されたことから、抗Plexin D1抗体は神経障害性疼痛の診断バイオマーカーの候補と考えられた。今後は、抗Plexin D1抗体を標的とする免疫治療により鎮痛効果が得られるか検証していく必要があると考えられた。

Report

(3 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • Research Products

    (20 results)

All 2021 2020 2019 Other

All Int'l Joint Research (2 results) Journal Article (7 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 7 results,  Open Access: 5 results) Presentation (10 results) (of which Invited: 3 results) Book (1 results)

  • [Int'l Joint Research] Asan medical center(韓国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Asan medical center(韓国)

    • Related Report
      2019 Research-status Report
  • [Journal Article] 抗Plexin D1抗体介在性神経障 害性疼痛2021

    • Author(s)
      藤井敬之、山﨑亮、宮地佑希野、飯沼今日子、吉良潤一
    • Journal Title

      自律神経

      Volume: -

    • NAID

      130008025098

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Anti-Plexin D1 antibodies relate to small fiber neuropathy and induce neuropathic pain in animals2021

    • Author(s)
      Takayuki Fujii, Eun-Jae Lee, Yukino Miyachi, Ryo Yamasaki, Young- Min Lim, Kyoko Iinuma, Ayako Sakoda, Kwang-Kuk Kim, Jun-ichi Kira
    • Journal Title

      Neurol Neuroimmunol Neuroinflamm

      Volume: -

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Painful trigeminal neuropathy associated with anti-Plexin D1 antibody2020

    • Author(s)
      Fujii Takayuki、Yamasaki Ryo、Miyachi Yukino、Iinuma Kyoko、Hashimoto Yu、Isobe Noriko、Matsushita Takuya、Kira Jun-ichi
    • Journal Title

      Neurology - Neuroimmunology Neuroinflammation

      Volume: 7 Issue: 5

    • DOI

      10.1212/nxi.0000000000000819

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 抗plexin D1抗体に関連した神経障害性疼痛2020

    • Author(s)
      藤井敬之、山﨑亮、宮地佑希野、飯沼今日子、吉良潤一
    • Journal Title

      末梢神経

      Volume: 31 Pages: 62-68

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Anti‐plexin D1 antibody?mediated neuropathic pain2020

    • Author(s)
      Fujii Takayuki、Yamasaki Ryo、Miyachi Yukino、Iinuma Kyoko、Kira Jun‐ichi
    • Journal Title

      Clinical and Experimental Neuroimmunology

      Volume: 11 Issue: S1 Pages: 48-52

    • DOI

      10.1111/cen3.12570

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Central nervous system-specific antinuclear antibodies in patients with multiple sclerosis2020

    • Author(s)
      Fujii T, Yamasaki R, Miyachi Y, Nagata S, Maimaitijiang G, Nakamura Y, Shinoda K, Matsushita T, Isobe N, Kira J.
    • Journal Title

      Journal of the Neurological Sciences

      Volume: 409 Pages: 116619-116619

    • DOI

      10.1016/j.jns.2019.116619

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Novel Neuropathic Pain Mechanisms Associated With Allergic Inflammation2019

    • Author(s)
      Fujii Takayuki、Yamasaki Ryo、Kira Jun-ichi
    • Journal Title

      Frontiers in Neurology

      Volume: 10 Pages: 1-8

    • DOI

      10.3389/fneur.2019.01337

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Intrathecal injection of neuropathic pain patient-derived anti-Plexin D1-IgG induces allodynia in mice2020

    • Author(s)
      Takayuki Fujii, Ryo Yamasaki, Yukino Miyachi, Kyoko Iinuma, Jun-ichi Kira
    • Organizer
      61st Annual Meeting of the Japanese Society of Neurology
    • Related Report
      2020 Annual Research Report
  • [Presentation] 抗Plexin D1抗体陽性小径線維ニューロパチーの 発見と受動免疫による疼痛の再現2020

    • Author(s)
      藤井 敬之、山﨑 亮、宮地 佑希野、飯沼 今日子、 Eun-Jae Lee、Kwang-Kuk Kim、吉良 潤一
    • Organizer
      第32回日本神経免疫学会学術集会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 抗plexin D1抗体ELISA法の開発と神経障害性疼痛を主徴とする同抗体陽性small fiber neuropathyの発見2020

    • Author(s)
      藤井 敬之、山﨑 亮、宮地 佑希野、飯沼 今日子、 Eun-Jae Lee、Kwang-Kuk Kim、吉良 潤一
    • Organizer
      第31回日本末梢神経学会学術集会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Anti-plexin D1 antibody and painful neuropathy2019

    • Author(s)
      Fujii Takayuki、Yamasaki Ryo、Miyachi Yukino、Iinuma Kyoko、Kira Jun‐ichi
    • Organizer
      60th Annual Meeting of The Japanease Society of Neurology
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Quantitative measurement of anti-plexin D1 antibodies by enzyme-linked immunosorbent assay2019

    • Author(s)
      Fujii Takayuki、Yamasaki Ryo、Miyachi Yukino、Iinuma Kyoko、Kira Jun‐ichi
    • Organizer
      60th Annual Meeting of The Japanease Society of Neurology
    • Related Report
      2019 Research-status Report
  • [Presentation] Plexin D1 antibody in neuropathic pain and atopic myelitis2019

    • Author(s)
      Takayuki Fujii
    • Organizer
      The 6th MS Summer College in Fukuoka
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] Enzyme-linked immunosorbent assayによる抗plexin D1抗体測定系の確立2019

    • Author(s)
      藤井敬之、山崎亮、宮地佑希野、飯沼今日子、吉良潤一
    • Organizer
      第30回日本末梢神経学会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] 抗plexin D1抗体測定系の確立と疾患スペクトラムの実態解明2019

    • Author(s)
      藤井敬之、山崎亮、宮地佑希野、飯沼今日子、吉良潤一
    • Organizer
      第31回日本神経免疫学会学術集会
    • Related Report
      2019 Research-status Report
  • [Presentation] A Novel Autoantibody against Plexin D1 in Patients with Neuropathic Pain2019

    • Author(s)
      藤井敬之、山崎亮、宮地佑希野、飯沼今日子、吉良潤一
    • Organizer
      第72回日本自律神経学会
    • Related Report
      2019 Research-status Report
    • Invited
  • [Presentation] 抗plexin D1抗体測定系の確立と髄液サイトカインの網羅的解析2019

    • Author(s)
      藤井敬之、山崎亮、宮地佑希野、飯沼今日子、吉良潤一
    • Organizer
      第72回日本自律神経学会
    • Related Report
      2019 Research-status Report
  • [Book] 日本臨牀 特集 免疫性神経疾患update2020

    • Author(s)
      藤井敬之、宮地佑希野
    • Total Pages
      6
    • Publisher
      日本臨牀社
    • Related Report
      2020 Annual Research Report

URL: 

Published: 2019-04-18   Modified: 2022-01-27  

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