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Drug discovery research using Omura natural compounds and disease-specific iPS cells

Research Project

Project/Area Number 20K06914
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 46030:Function of nervous system-related
Research InstitutionKitasato University

Principal Investigator

Ohta Etsuro  北里大学, 医療衛生学部, 准教授 (60508042)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywordsパーキンソン病 / LRRK2 / iPS細胞 / タウ / 創薬
Outline of Research at the Start

優性遺伝パーキンソン病(PD)の原因分子Leucine-Rich Repeat Kinase 2(LRRK2)に変異をもつPD患者は、臨床症状や発症年齢、治療薬レボドパに対する反応性が孤発性PD患者と類似した特徴を示す。また近年、LRRK2は孤発性PDの危険因子として報告され、PD発症機序を理解する上で重要と考えられる。本研究では、PDの新規治療薬開発を目指し、大村天然化合物ライブラリーを用いて、I2020T変異LRRK2をもつ遺伝性PD患者iPS細胞由来神経細胞に対して保護的作用となる細胞死抑制または異常表現型の軽減を示す化合物を探索する。

Outline of Final Research Achievements

In this study, we searched for developing novel therapeutic agents using Omura natural compounds and familial Parkinson's disease patient iPS cell-derived neurons harboring the I2020T mutant Leucine-Rich Repeat Kinase 2 (LRRK2). First, we constructed an automatic quantitative analysis system using IN Cell Analyzer 6000, which can evaluate shortening of neurite length, acceleration of apoptosis to oxidative stress, and increased Tau phosphorylation. Next, using this analysis system, 1st and 2nd screenings were performed, and 60 compounds were found that showed neurite length elongation and phosphorylated Tau suppression effects.

Academic Significance and Societal Importance of the Research Achievements

iPS細胞(iPSC)を用いた創薬研究では、新規治療薬となりうる候補薬剤がドラックリポジショニングの場合、治験への移行がスムーズに開始できることから、iPSC創薬の臨床応用への展開が注目されている。遺伝性パーキンソン病(PD)の原因分子LRRK2に変異をもつPD患者は、臨床症状や治療薬レボドパに対する反応性が孤発性PD患者と類似した特徴を示す。将来的な波及効果として、リード化合物の構造を変化させた合成化合物などアカデミア発iPSC創薬への展開が期待できる。また、Tauを標的とした化合物は、アルツハイマー病を含めた他の神経変性疾患への応用が期待できる。

Report

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

    (16 results)

All 2023 2022 2021 2020

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Open Access: 4 results) Presentation (11 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Nrf2 Expression Is Decreased in LRRK2 Transgenic Mouse Brain and LRRK2 Overexpressing SH-SY5Y Cells2023

    • Author(s)
      Kawakami Fumitaka、Imai Motoki、Tamaki Shun、Ohta Etsuro、Kawashima Rei、Maekawa Tatsunori、Kurosaki Yoshifumi、Ohba Kenichi、Ichikawa Takafumi
    • Journal Title

      Biological and Pharmaceutical Bulletin

      Volume: 46 Issue: 1 Pages: 123-127

    • DOI

      10.1248/bpb.b22-00356

    • ISSN
      0918-6158, 1347-5215
    • Year and Date
      2023-01-01
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Jietacin derivative, (Z)-2-(8-oxodec-9-yn-1-yl)-1-vinyldiazene 1-oxide, inhibits TNF-α-mediated inflammatory cytokine and chemokine expression via suppression of p65 phosphorylation and importin β1 expression in synovial cell line SW9822022

    • Author(s)
      Kyoko Muneshige, Yuki Inahashi, Makoto Itakura, Masato Iwatsuki, Tomoyasu Hirose, Gen Inoue, Masashi Takaso, Toshiaki Sunazuka, Yoshihisa Ohashi, Etsuro Ohta, Kentaro Uchida
    • Journal Title

      Pharmaceuticals

      Volume: 16 Issue: 1 Pages: 5-5

    • DOI

      10.3390/ph16010005

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A new approach to analysis of intracellular proteins and subcellular localization using cellprofiler and imageJ in combination2022

    • Author(s)
      Hattori Akito、Ohta Etsuro、Nagai Makiko、Iwabuchi Kazuya、Okano Hideyuki
    • Journal Title

      Methods

      Volume: 203 Pages: 233-241

    • DOI

      10.1016/j.ymeth.2021.04.019

    • Related Report
      2022 Annual Research Report 2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] A new approach to analysis of intracellular proteins and subcellular localization using CellProfiler and ImageJ in combination2021

    • Author(s)
      Hattori A, Ohta E, Nagai M, Iwabuchi K, Okano H
    • Journal Title

      Methods

      Volume: -

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Generation of gene-corrected iPSCs line (KEIUi001-A) from a PARK8 patient iPSCs with familial Parkinson’s disease carrying the I2020T mutation in LRRK22020

    • Author(s)
      Ohta Etsuro、Sone Takefumi、Ukai Hideki、Hisamatsu Tomoko、Kitagawa Tokiko、Ishikawa Mitsuru、Nagai Makiko、Ueda Hiroki R.、Obata Fumiya、Okano Hideyuki
    • Journal Title

      Stem Cell Research

      Volume: 49 Pages: 102073-102073

    • DOI

      10.1016/j.scr.2020.102073

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Analysis of physiological function of mutant LRRK2-expressing microglia2022

    • Author(s)
      Riko Hidai,Akito Hattori,Kana Onodera,Manami Shizu,Miho Shimizu,Yuki Nishigai,Mizuki Hirahara,Saori Fukuda,Masashi Sato,Kazuya Iwabuchi,Etsuro Ohta
    • Organizer
      第51回日本免疫学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] A new approach to analysis of phagocytosis using CellProfiler2022

    • Author(s)
      Akito Hattori, Kana Onodera, Riko Hidai, Manami Shizu, Miho Shimizu, Yuki Nishigai, Mizuki Hirahara, Saori Fukuda, Kazuya Iwabuchi, Hideyuki Okano, Etsuro Ohta
    • Organizer
      第51回日本免疫学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 細胞内輸送関連分子の新規解析手法の開発と病態モデルへの応用2022

    • Author(s)
      服部精人、太田悦朗、永井 真貴子、岩渕 和也、岡野 栄之
    • Organizer
      第60回日本生物物理学会年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 遺伝性パーキンソン病原因分子LRRK2の疾患特異的変異がミクログリアに及ぼす影響の解析2022

    • Author(s)
      樋代 理子,服部 精人,小野寺 香奈,椎津 愛美,清水 美穂,西海 有希,平原 瑞季,福田 沙織,岩渕 和也,太田 悦朗
    • Organizer
      第16回日本臨床検査学教育学会学術大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] オープンソース画像解析ソフトウェアCellProfilerを用いた免疫担当細胞における貪食能解析ツールの開発2022

    • Author(s)
      小野寺 香奈,服部 精人,樋代 理子,椎津 愛美,清水 美穂,西海 有希,平原 瑞季,福田 沙織,岡野 栄之,太田 悦朗
    • Organizer
      第16回日本臨床検査学教育学会学術大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] The influence of I2020T mutant LRRK2, the causal molecule of familial Parkinson's disease, on intracellular membrane trafficking2022

    • Author(s)
      服部精人、太田悦朗、永井真貴子、樋代理子、岩渕和也、岡野栄之
    • Organizer
      第45回日本神経科学大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Analysis of membrane trafficking through Rab proteins in PARK8 iPSC-derived neurons2021

    • Author(s)
      Hattori A, Ohta E, Nagai M, Iwabuchi K, Okano H.
    • Organizer
      The 19th International Society for Stem Cell Research (ISSCR) 2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 遺伝性パーキンソン病患者iPS 細胞由来神経細胞のRab を介したメンブレントラフィッキングの解析2021

    • Author(s)
      服部精人、太田悦朗、永井 真貴子、岩渕 和也、岡野 栄之
    • Organizer
      第42回日本炎症・再生医学会
    • Related Report
      2021 Research-status Report
  • [Presentation] Analysis of intracellular membrane traffic using iPSC-derived neurons from familial Parkinson's disease patient2021

    • Author(s)
      Hattori A, Ohta E, Nagai M, Miyoshi H, Iwabuchi K, Okano H
    • Organizer
      The 10th International Conference AD/PD
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research
  • [Presentation] Analysis of intracellular membrane traffic using iPSC-derived neurons from familial Parkinson's disease patient2020

    • Author(s)
      Hattori A, Ohta E, Nagai M, Miyoshi H, Iwabuchi K, Okano H
    • Organizer
      Neuro2020【第43回日本神経科学大会】
    • Related Report
      2020 Research-status Report
  • [Presentation] ヒト単球系細胞株を用いたLRRK2キナーゼ阻害剤による抗炎症効果の解析2020

    • Author(s)
      太田悦朗、佐々木晶子、新田龍人、服部精人、岡野栄之
    • Organizer
      第41回日本炎症・再生医学会
    • Related Report
      2020 Research-status Report

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Published: 2020-04-28   Modified: 2024-01-30  

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