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Exploration of novel environmental factors of Parkinson's disease

Research Project

Project/Area Number 20K21711
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 58:Society medicine, nursing, and related fields
Research InstitutionHiroshima University

Principal Investigator

Kotake Yaichiro  広島大学, 医系科学研究科(薬), 教授 (20335649)

Project Period (FY) 2020-07-30 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2021: ¥3,640,000 (Direct Cost: ¥2,800,000、Indirect Cost: ¥840,000)
Fiscal Year 2020: ¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Keywordsp62 / 核蓄積 / パーキンソン病
Outline of Research at the Start

本来細胞質でオートファジーにより選択的に分解されるタンパク質p62が核に蓄積するという非常にユニークな現象を見出した。そこで本研究では、この現象を解明するとともに、p62核蓄積を指標にしたPD環境因子探索系構築のための基礎検討を行う。

Outline of Final Research Achievements

Based on the finding that p62 protein, which is originally degraded in the cytoplasm, accumulates in the nucleus under specific conditions, we have established a system to search for conditions under which p62 causes nuclear accumulation. Currently, only low concentrations of MPP+ are found to cause nuclear accumulation with good reproducibility. On the other hand, to explore the function of p62 in the nucleus, we searched for proteins that bind to p62 and found protein X as a p62-binding protein, and identified its binding site.

Academic Significance and Societal Importance of the Research Achievements

p62は選択的オートファジーの基質であり、細胞内でさまざまな役割を有する。そのため、期間内に挙げた研究成果を基に本研究がさらに発展し、p62核蓄積がどのような物質、どのような条件で起こるかが判明して核蓄積がもたらす影響の全貌が明らかになると、細胞生物学的に未解明の現象を解明する手がかりとなることが考えられる。また、パーキンソン病をはじめとする関連疾患の病態解明などにつながる可能性が期待される。

Report

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

    (3 results)

All 2021 2020

All Journal Article (3 results) (of which Peer Reviewed: 3 results,  Open Access: 1 results)

  • [Journal Article] MiT/TFE family members suppress L-leucyl–L-leucine methyl ester-induced cell death2021

    • Author(s)
      Yabuki Ayaka、Miyara Masatsugu、Umeda-Miyara Kanae、Takao Saya、Sanoh Seigo、Kotake Yaichiro
    • Journal Title

      The Journal of Toxicological Sciences

      Volume: 46 Issue: 3 Pages: 143-156

    • DOI

      10.2131/jts.46.143

    • NAID

      130007993513

    • ISSN
      0388-1350, 1880-3989
    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Triphenyltin inhibits GA-binding protein α nuclear translocation2020

    • Author(s)
      Kidoguchi Naohiro、Ishida Keishi、Sanoh Seigo、Miyara Masatsugu、Kotake Yaichiro
    • Journal Title

      Fundamental Toxicological Sciences

      Volume: 7 Issue: 1 Pages: 33-40

    • DOI

      10.2131/fts.7.33

    • NAID

      130007789673

    • ISSN
      2189-115X
    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Amiodarone bioconcentration and suppression of metamorphosis in Xenopus2020

    • Author(s)
      Sanoh Seigo、Hanada Hideki、Kashiwagi Keiko、Mori Tsukasa、Goto-Inoue Naoko、Suzuki Ken-ichi T.、Mori Junpei、Nakamura Naoki、Yamamoto Takashi、Kitamura Shigeyuki、Kotake Yaichiro、Sugihara Kazumi、Ohta Shigeru、Kashiwagi Akihiko
    • Journal Title

      Aquatic Toxicology

      Volume: 228 Pages: 105623-105623

    • DOI

      10.1016/j.aquatox.2020.105623

    • Related Report
      2020 Research-status Report
    • Peer Reviewed

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Published: 2020-08-03   Modified: 2023-01-30  

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