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Clinical application of glia imaging with newly developed PET ligands in various neurological diseases

Research Project

Project/Area Number 19K08191
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 52040:Radiological sciences-related
Research InstitutionTokyo Metropolitan Geriatric Hospital and Institute of Gerontology

Principal Investigator

Ishibashi Kenji  地方独立行政法人東京都健康長寿医療センター(東京都健康長寿医療センター研究所), 東京都健康長寿医療センター研究所, 研究副部長 (50469962)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2020: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2019: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywordsアストログリオーシス / MAO-B / THK5351 / PET / アストロサイト / ミクログリア / TSPO / アストログリア
Outline of Research at the Start

ミクログリアおよびアストログリアの活性化は、炎症の存在および傷害組織の修復を示唆しており、あらゆる脳疾患で、普遍的に生じ得る現象である。したがって、ミクログリアおよびアストログリア活性の画像化は、種々の脳疾患の病態の評価や治療方針の決定に有用な情報を与え得る。
本研究では、11C-CB184 PETと18F-THK5351 PETを用いて、ミクログリアおよびアストログリア活性の画像化(グリアイメージング)を行う。そして、グリアイメージングは、どの程度のミクログリアおよびアストログリア活性を画像化でき、どの疾患で有用であるかを評価する。

Outline of Final Research Achievements

THK5351 binds to MAO-B and tau aggregates. However, because the binding affinity of THK5351 to MAO-B is much higher than that to tau aggregates, THK5351 PET is used to estimate regional levels of MAO-B, which is highly concentrated in astrocytes. Therefore, temporal changes in regional MAO-B levels can be used as an index of astrocytic proliferation, known as astrogliosis.
Astrogliosis occurs in response to inflammation caused by brain injury and diseases. Therefore, astrogliosis imaging is potentially useful for the assessment of underlying pathophysiology in the central nervous system.
We have conducted THK5351 PET in various neurological diseases, and concluded that THK5351 PET can be a maker for neurodegeneration, neuroinflammation, and brain tumors through imaging astrogliosis.

Academic Significance and Societal Importance of the Research Achievements

THK5351-PETはアストログリオーシスの程度を画像化する。アストログリオーシスは炎症に付随するため、あらゆる脳疾患で普遍的に生じ得る現象である。したがって、その画像化は、種々の脳疾患の病態の評価、すなわち診断や治療方針の決定に有用な情報を与え得る。
本研究では、種々の脳疾患を対象にTHK5351-PETを施行した。その結果、THK5351画像はアストログリオーシス画像として炎症を敏感に検出できることを示した。具体的には、パーキンソン症候群などの変性疾患、感染症などの炎症性疾患、腫瘍性疾患において、THK5351-PETは有用な診断法であることを示した。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (14 results)

All 2022 2021 2020 2019

All Journal Article (6 results) (of which Int'l Joint Research: 6 results,  Peer Reviewed: 6 results,  Open Access: 1 results) Presentation (8 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Distribution Pattern of the Monoamine Oxidase B Ligand, 18F-THK5351, in the Healthy Brain2022

    • Author(s)
      Ishibashi Kenji、Miura Yoshiharu、Tago Tetsuro、Toyohara Jun、Higashihara Mana、Iwata Atsushi、Ishii Kenji
    • Journal Title

      Clinical Nuclear Medicine

      Volume: 47 Issue: 7 Pages: e489-e495

    • DOI

      10.1097/rlu.0000000000004272

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Brain PET Imaging of 11C-Methionine, 18F-FDG, and 18F-THK5351 in a Case of Lymphomatoid Granulomatosis2022

    • Author(s)
      Higashihara Mana、Ishibashi Kenji、Tokumaru Aya M.、Ishii Kenji、Iwata Atsushi
    • Journal Title

      Clinical Nuclear Medicine

      Volume: 47 Issue: 12 Pages: e749-e751

    • DOI

      10.1097/rlu.0000000000004388

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] 18F-THK5351 PET Can Identify Core Lesions in Different Amyotrophic Lateral Sclerosis Phenotypes2021

    • Author(s)
      Higashihara Mana、Ishibashi Kenji、Tokumaru Aya M.、Iwata Atsushi、Ishii Kenji
    • Journal Title

      Clinical Nuclear Medicine

      Volume: 46 Issue: 12 Pages: e582-e583

    • DOI

      10.1097/rlu.0000000000003755

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Head-to-head comparison of the two MAO-B radioligands, 18F-THK5351 and 11C-L-Deprenyl, to visualize astrogliosis in patients with neurological disorders2021

    • Author(s)
      Kenji Ishibashi, Masashi Kameyama, Yoshiharu Miura, Jun Toyohara, Kenji Ishii
    • Journal Title

      Clinical Nuclear Medicine

      Volume: 46 Issue: 1 Pages: e31-e33

    • DOI

      10.1097/rlu.0000000000003197

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Relationship between the temporal course of astrogliosis and symptom improvement in cerebral infarction: report of a case monitored using 18 F-THK5351 positron emission tomography2020

    • Author(s)
      Kenji Ishibashi, Yoshiharu Miura, Kosei Hirata, Jun Toyohara, Kenji Ishii
    • Journal Title

      BMC Medical Imaging

      Volume: 20 Issue: 1 Pages: 81-81

    • DOI

      10.1186/s12880-020-00481-4

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 18F-THK5351 PET Can Identify Astrogliosis in Multiple Sclerosis Plaques2020

    • Author(s)
      Ishibashi Kenji、Miura Yoshiharu、Hirata Kosei、Toyohara Jun、Ishii Kenji
    • Journal Title

      Clinical Nuclear Medicine

      Volume: 45 Issue: 2 Pages: e98-e100

    • DOI

      10.1097/rlu.0000000000002751

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] 血管内大細胞型B細胞リンパ腫の79歳男性例2022

    • Author(s)
      近藤壯一朗, 波多野敬子, 石橋賢士, 栗原正典, 東原真奈, 仁科裕史, 金丸和富, 岩田淳
    • Organizer
      第242回神経学会関東甲信越地方会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 大脳皮質基底核変性症の診断における18F-THK5351 PETの有用性についての検討2021

    • Author(s)
      馬場智也、井原涼子、東原真奈、仁科裕史、石橋賢士、石井賢二、德丸阿耶、金丸和富、岩田淳
    • Organizer
      第62回日本神経学会学術大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 18F-THK 5351 PETを用いた筋萎縮性側索硬化症におけるastrogliosisの検出2021

    • Author(s)
      東原真奈、石橋賢士、井原涼子、加藤貴行、仁科裕史、金丸和富、德丸阿耶、石井賢二、岩田淳
    • Organizer
      第62回日本神経学会学術大会
    • Related Report
      2021 Research-status Report
  • [Presentation] 相貌失認を主症状とし、18F-THK5351 PETが病変の描出に有用だったFTLD-TDP疑いの71歳女性例2021

    • Author(s)
      小松大樹、井原涼子、石橋賢士、東原真奈、仁科裕史、金丸和富、石井賢二、岩田淳
    • Organizer
      第238回日本神経学会関東・甲信越地方会
    • Related Report
      2021 Research-status Report
  • [Presentation] 18F-THK5351 PETよりGlobular Glial Tauopathyが疑われた85歳女性例2021

    • Author(s)
      東野将志、仁科裕史、波多野敬子、東原真奈、石橋賢士、石井賢二、金丸和富、岩田淳
    • Organizer
      第239回日本神経学会関東・甲信越地方会
    • Related Report
      2021 Research-status Report
  • [Presentation] Potential use of 18F-THK5351 PET to identify astrogliosis in neurological diseases2020

    • Author(s)
      Kenji Ishibashi
    • Organizer
      American Society of Neuroradiology Annual Meeting 2020
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] 18F-THK5351 PET can identify Wallerian degeneration of the pyramidal tract in a post-stroke patient2019

    • Author(s)
      石橋賢士、三浦義治、亀山征史、多胡哲郎、豊原潤、石井賢二
    • Organizer
      第60回日本神経学会学術大会
    • Related Report
      2019 Research-status Report
  • [Presentation] 18F-THK5351 PET imaging of Wallerian degeneration of the pyramidal tract in a post-stroke patient: A longitudinal case study2019

    • Author(s)
      Kenji Ishibashi, Tesuro Tago, Jun Toyohara, Kenji Ishii
    • Organizer
      International Stroke Conference 2019
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

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Published: 2019-04-18   Modified: 2024-01-30  

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