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Development of PET probes for HDAC6 imaging

Research Project

Project/Area Number 18K15655
Research Category

Grant-in-Aid for Early-Career Scientists

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

Principal Investigator

Tago Tetsuro  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, 研究員 (50780649)

Project Period (FY) 2018-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2018: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
KeywordsPET / HDAC6 / ユビキチン / 分子イメージング / 核医学 / 放射性医薬品 / イメージング
Outline of Final Research Achievements

In this study, we radiosynthesized and evaluated an 18F-labeled analog of tubastatin A, a histone deacetylase 6 (HDAC6) selective inhibitor, for in vivo HDAC6 imaging with positron emission tomography (PET). The 18F-labeled analog demonstrated a high HDAC6 selectivity in a cancer cell uptake study. Meanwhile, a brain uptake study in mice revealed a poor blood-brain barrier permeability of the 18F-labeled analog, suggesting a limitation for studies into neurodegenerative diseases.
We also started radiosynthesis of an 18F-labeled analog of SW-100, which is a brain penetrant HDAC6 inhibitor. Using a boronic acid precursor and Cu catalyst, the 18F-intermediate was obtained with a non-isolated radiochemical yield of 60%. Automation of the radiosynthesis is currently underway.

Academic Significance and Societal Importance of the Research Achievements

加齢に伴い発症率の増加するパーキンソン病などの神経変性疾患は、日本のような超高齢化社会において喫緊の課題であると言えるが、根本的治療法はまだ開発されていない。治療法開発のためにも、正確な鑑別診断技術や治療効果の測定方法の確立が重要である。
ヒストンデアセチラーゼ6(HDAC6)は細胞質に存在するタンパク質の脱アセチル化を担う酵素であるが、神経変性疾患の脳内において蓄積するタンパク質病変の形成に関与することが明らかとなっており、神経変性疾患の治療標的として注目されている。本研究が開発を目指すHDAC6のPETイメージング技術は、このHDAC6標的治療薬の開発を促進することが期待できる。

Report

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

    (14 results)

All 2020 2019 2018

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

  • [Journal Article] Radiosynthesis and preliminary evaluation of an 18F-labeled tubastatin A analog for PET imaging of histone deacetylase 62020

    • Author(s)
      Tago Tetsuro、Toyohara Jun、Ishii Kenji
    • Journal Title

      Journal of Labelled Compounds and Radiopharmaceuticals

      Volume: 63 Issue: 2 Pages: 85-95

    • DOI

      10.1002/jlcr.3823

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Metabolic network topology of Alzheimer’s disease and dementia with Lewy bodies generated using fluorodeoxyglucose positron emission tomography.2020

    • Author(s)
      Imai M, Tanaka M, SakataM, Wagatsuma K, Tago T, Toyohara J, Sengoku R, Nishina Y, Kanemaru K, Ishibashi K, Murayama S, Ishii K.
    • Journal Title

      J Alzheimers Dis

      Volume: 73 Issue: 1 Pages: 197-207

    • DOI

      10.3233/jad-190843

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Mechanical regulation underlies effects of exercise on serotonin-induced signaling in the prefrontal cortex neurons.2020

    • Author(s)
      Ryu Y, Maekawa T, Yoshino D, Sakitani N, Takashima A, Inoue T, Suzurikawa J, Toyohara J, Tago T, Fujita N, Sawada K, Murase S, Watanave M, Sakai T, Yoshikawa Y, Ogata T, Shinohara M, Nagao M, Sawada Y
    • Journal Title

      iScience

      Volume: 23 Issue: 2 Pages: 100874-100874

    • DOI

      10.1016/j.isci.2020.100874

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Radiosynthesis of 18F-labeled d-allose2019

    • Author(s)
      Yamamoto Hiroyuki、Wada Kenji、Toyohara Jun、Tago Tetsuro、Ibaraki Masanobu、Kinoshita Toshibumi、Yamamoto Yuka、Nishiyama Yoshihiro、Kudomi Nobuyuki
    • Journal Title

      Carbohydrate Research

      Volume: 486 Pages: 107827-107827

    • DOI

      10.1016/j.carres.2019.107827

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Searching for diagnostic properties of novel fluorine-18-labeled d-allose2019

    • Author(s)
      Toyohara Jun、Yamamoto Hiroyuki、Tago Tetsuro
    • Journal Title

      Annals of Nuclear Medicine

      Volume: 33 Issue: 11 Pages: 855-865

    • DOI

      10.1007/s12149-019-01398-x

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Monoamine Oxidase B Binding of 18F-THK5351 to Visualize Glioblastoma and Associated Gliosis2019

    • Author(s)
      Tago Tetsuro、Toyohara Jun、Sengoku Renpei、Murayama Shigeo、Ishii Kenji
    • Journal Title

      Clinical Nuclear Medicine

      Volume: 44 Issue: 6 Pages: 507-509

    • DOI

      10.1097/rlu.0000000000002564

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Characterization of the binding of tau imaging ligands to melanin-containing cells: putative off-target-binding site2019

    • Author(s)
      Tago Tetsuro、Toyohara Jun、Harada Ryuichi、Furumoto Shozo、Okamura Nubuyuki、Kudo Yukitsuka、Takahashi-Fujigasaki Junko、Murayama Shigeo、Ishii Kenji
    • Journal Title

      Annals of Nuclear Medicine

      Volume: 33 Issue: 6 Pages: 1-8

    • DOI

      10.1007/s12149-019-01344-x

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] F-182020

    • Author(s)
      多胡哲郎
    • Organizer
      PET化学ワークショップ
    • Related Report
      2019 Annual Research Report
  • [Presentation] A simple SPE purification method for 18F-radiolabeleing: Proof-of-concept study in stilbene amyloid-β ligands with a neopentyl labeling group2019

    • Author(s)
      Tago T, Toyohara J, Fujimaki R, Hirano K, Iwai K, Ishibashi K, Tanaka H
    • Organizer
      The 23rd International Symposium on Radiopharmaceutical Sciences
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] HDAC6イメージングを目的とした18F-標識ツバスタチンA類縁体の標識合成と生物学的評価2019

    • Author(s)
      多胡哲郎,豊原潤,石井賢二
    • Organizer
      第14回日本分子イメージング学会総会・学術集会
    • Related Report
      2019 Annual Research Report
  • [Presentation] アルツハイマー病イメージングのためのPETプローブ開発2019

    • Author(s)
      多胡哲郎
    • Organizer
      第35回都市高齢者の健康長寿医療研究会
    • Related Report
      2019 Annual Research Report
  • [Presentation] F-18化学2019

    • Author(s)
      多胡哲郎
    • Organizer
      PET化学ワークショップ2019
    • Related Report
      2018 Research-status Report
  • [Presentation] Preliminary biological evaluation of radioligands for PET imaging of histone deacetylase 62018

    • Author(s)
      Tago, T., Toyohara, J., Ishii, K
    • Organizer
      EANM'18
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Radiosynthesis and preliminary biological evaluation of a 18F-labeled probe for histone deacetylase 6 PET imaging2018

    • Author(s)
      Tago, T., Toyohara, J., Ishii, K
    • Organizer
      The 10th China-Japan-Korea Symposium on Radiopharmaceutical Sciences
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research

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Published: 2018-04-23   Modified: 2021-02-19  

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