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Drug discovery to treat Parkinson's disease using gba1 knock-out medaka

Research Project

Project/Area Number 19K17005
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

Nakanishi Etsuro  京都大学, 医学研究科, 助教 (40828935)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Fiscal Year 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2019: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywordsパーキンソン病 / ゴーシェ病 / GBA1 / αシヌクレイン / Parkinson's disease / Gaucher's disease / α-synuclein / GBA / Glucocerebrosidase / メダカ
Outline of Research at the Start

GBA1(-/-)メダカは、パーキンソン病(PD)最大のリスク因子であるGBA1のノックアウトにより、PDの病理学的特徴である内因性のαシヌクレイン(α-syn)の蓄積と神経細胞死を呈する初めての脊椎動物モデルである。我々は、このGBA1(-/-)メダカを用いて、薬剤介入実験において、その表現型の変化を評価できる系を確立した。この系を用いて、薬剤介入実験を行い、表現型として生存率、神経細胞死とα-syn蓄積の抑制効果を評価することで、PDに重要な分子経路の解明と疾患修飾治療の開発につなげる。

Outline of Final Research Achievements

This study aims to elucidate the pathogenesis of Parkinson's disease and develop disease-modifying drugs by using GBA1(-/-) medaka, which exhibits endogenous α-synuclein accumulation and neuronal cell loss, as a Parkinoson's disease model animal. To screen the efficacy of the compounds, GBA1(-/-) medaka were treated with the compounds and their effects on survival were evaluated. Six compounds were evaluated during the study period. Biochemical analysis was performed on the compounds that showed an effect on survival rate.

Academic Significance and Societal Importance of the Research Achievements

パーキンソン病および神経型ゴーシェ病、いずれの疾患も現在までに疾患修飾治療薬は実用化されていない。GBA1(-/-)メダカはこれらの疾患の疾患修飾治療薬探索のための有用なモモデル動物であり、本研究で生存期間の延長を見出した化合物は、これらの疾患の疾患修飾治療薬の候補になると考えられる。

Report

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

    (4 results)

All 2021

All Presentation (4 results) (of which Int'l Joint Research: 1 results)

  • [Presentation] Drug discovery to treat GBA1-related α-synucleinopathy using gba1 knock-out medaka2021

    • Author(s)
      中西悦郎、澤村正典、樽野陽亮、上村紀仁、山門穂高、高橋良輔
    • Organizer
      第62回日本神経学会学術大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] The potential of GBA1 knock-out medaka (Oryzias latipes) as a model animal in the search for therapeutic compounds for GBA1-related α-synucleinopathy2021

    • Author(s)
      Etsuro Nakanishi, Masanori Sawamura, Yosuke Taruno, Norihito Uemura, Hodaka Yamakado, Ryosuke Takahashi
    • Organizer
      MDS Virtual Congress 2021
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] GBA1ノックアウトメダカを用いたGBA1関連αシヌクレイノパチーの疾患修飾薬の探索2021

    • Author(s)
      中西悦郎、上村紀仁、山門穂高、高橋良輔
    • Organizer
      第14回パーキンソン病・運動障害疾患コングレス
    • Related Report
      2020 Research-status Report
  • [Presentation] Drug discovery to treat GBA1-related α-synucleinopathy using gba1 knock-out medaka2021

    • Author(s)
      Etsuro Nakanishi, Masanori Sawamura, Yosuke Taruno, Norihito Uemura, Hodaka Yamakado, Ryosuke Takahashi
    • Organizer
      第62回日本神経学会学術大会
    • Related Report
      2020 Research-status Report

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Published: 2019-04-18   Modified: 2023-12-25  

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