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Molecular Basis and Physiological Functions of Diverse Selective Autophagy

Research Project

Project/Area Number 20H03213
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 43030:Functional biochemistry-related
Research InstitutionJuntendo University

Principal Investigator

Morishita Hideaki  順天堂大学, 医学部, 准教授 (90783499)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2022: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2021: ¥5,850,000 (Direct Cost: ¥4,500,000、Indirect Cost: ¥1,350,000)
Fiscal Year 2020: ¥7,280,000 (Direct Cost: ¥5,600,000、Indirect Cost: ¥1,680,000)
Keywordsオートファジー / リソソーム / 恒常性維持 / 選択的オートファジー / 細胞内品質管理 / ユビキチン / ゼブラフィッシュ / 細胞内分解 / マウス / 液滴
Outline of Research at the Start

オートファジーは特定の細胞内成分を特異的に識別して分解することができる。この選択的オートファジーと呼ばれる作用は近年、様々な疾患の発症抑制に関与することが示唆されてきているが、生体内で選択的オートファジーによってどのような基質がどのような分子メカニズムで分解されているのかはほとんど解明されていない。そこで本研究では、独自に開発した選択的オートファジー阻害マウスやゼブラフィッシュを用いて、生体内における選択的細胞内分解の分子基盤およびその生理的意義の解明をめざす。本研究によって、生理的・病態生理的条件下における細胞内分解の包括的理解が進むことが期待される。

Outline of Final Research Achievements

Autophagy can efficiently remove specific intracellular components. This action, called selective autophagy, has recently been suggested to be involved in suppression of various diseases, but what substrates are degraded by selective autophagy in vivo, and by what molecular mechanism, has been largely unknown. In this study, we established a new selective autophagy inhibition method and comprehensively identified the substrates of selective autophagy in vivo. In the future, this technique will lead to a comprehensive understanding of intracellular degradation under physiological and pathophysiological conditions.

Academic Significance and Societal Importance of the Research Achievements

近年、選択的オートファジーの破綻は神経変性疾患(パーキンソン病、萎縮性側索硬化症、前頭側頭型認知症、βプロペラ蛋白関連神経変性症、Vici症候群等)、腫瘍、感染症等の様々な疾患と関連することが示唆されている。本研究では生体内での選択的オートファジーの役割を基質レベルで解析するツールを開発できたため、今後、本ツールを各種ストレス下や疾患モデルでの解析に適用していくことで、選択的オートファジー不全疾患の病態の解明や、予防・治療法のシーズ同定つなげていくことができる。

Report

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

    (21 results)

All 2022 2021 Other

All Journal Article (9 results) (of which Peer Reviewed: 6 results,  Open Access: 4 results) Presentation (9 results) (of which Int'l Joint Research: 3 results,  Invited: 5 results) Book (1 results) Remarks (2 results)

  • [Journal Article] Role of autophagy in the eye: from physiology to disease2022

    • Author(s)
      Morishita Hideaki
    • Journal Title

      Current Opinion in Physiology

      Volume: 30 Pages: 100592-100592

    • DOI

      10.1016/j.cophys.2022.100592

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Role of autophagy in liver diseases2022

    • Author(s)
      Morishita H, Komatsu M.
    • Journal Title

      Current Opinion in Physiology

      Volume: 30 Pages: 100594-100594

    • DOI

      10.1016/j.cophys.2022.100594

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Molecular Mechanisms and Physiological Significance of Large-Scale Organelle Degradation in the Lens2022

    • Author(s)
      森下英晃
    • Journal Title

      The Journal of The Japanese Society for Cataract Research

      Volume: 34 Issue: 1 Pages: 11-14

    • DOI

      10.14938/cataract.34-001

    • ISSN
      0915-4302, 2188-613X
    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Phosphorylation of phase-separated p62 bodies by ULK1 activates a redox-independent stress response2022

    • Author(s)
      Ikeda R, Noshiro D, Morishita H, Takada S, Kageyama S, Fujioka Y, Funakoshi T, Komatsu-Hirota S, Arai R, Ryzhii E, Abe M, Koga T, Nakao M, Sakimura K, Horii A, Waguri S, Ichimura Y, Noda NN, Komatsu M.
    • Journal Title

      bioExiv

      Volume: 1 Pages: 521356-521356

    • DOI

      10.1101/2022.12.21.521356

    • Related Report
      2022 Annual Research Report
    • Open Access
  • [Journal Article] 肺の恒常性の維持:肺サーファクタントとオートファジー2022

    • Author(s)
      森下英晃
    • Journal Title

      呼吸器内科

      Volume: 42(6) Pages: 633-638

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Regulation of ER‐derived membrane dynamics by the DedA domain‐containing proteins VMP1 and TMEM41B2022

    • Author(s)
      Hama Yutaro、Morishita Hideaki、Mizushima Noboru
    • Journal Title

      EMBO reports

      Volume: 23 Issue: 2 Pages: 0-0

    • DOI

      10.15252/embr.202153894

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A new insight into the lens: cytosolic PLAAT phospholipases degrade organelles to make the lens transparent2021

    • Author(s)
      Morishita Hideaki、Eguchi Tomoya、Mizushima Noboru
    • Journal Title

      Autophagy

      Volume: 17 Issue: 9 Pages: 2645-2647

    • DOI

      10.1080/15548627.2021.1950372

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Organelle degradation in the lens by PLAAT phospholipases2021

    • Author(s)
      Morishita Hideaki、Eguchi Tomoya、Tsukamoto Satoshi、Sakamaki Yuriko、Takahashi Satoru、Saito Chieko、Koyama-Honda Ikuko、Mizushima Noboru
    • Journal Title

      Nature

      Volume: 592 Issue: 7855 Pages: 634-638

    • DOI

      10.1038/s41586-021-03439-w

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 水晶体の透明化に必要な大規模細胞小器官分解を担う新規分解機構の発見2021

    • Author(s)
      森下英晃, 江口智也, 水島昇
    • Journal Title

      実験医学

      Volume: 39 Pages: 2113-2116

    • Related Report
      2021 Annual Research Report
  • [Presentation] 選択的オートファジーにより分解される新規超分子複合体の同定2022

    • Author(s)
      来栖玲央, 藤本侑生, 森下英晃, 高田周平, 和栗聡, 小松雅明
    • Organizer
      日本顕微鏡学会 第78回学術講演会
    • Related Report
      2022 Annual Research Report
  • [Presentation] ULK1 キナーゼによる p62 の液―液相分離制御2022

    • Author(s)
      池田良, 一村義信, 森下英晃, 能代大輔, 船越智子, 小松聡子, 野田展生, 小松雅明
    • Organizer
      日本Cell Death学会 第30回学会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Proteomic approaches to purified p62-bodies and selective autophagy-deficient mice identify a novel substrate for p62-mediated selective autophagy.2022

    • Author(s)
      Morishita H, Kurusu R, Fujimoto Y, Takada S, Komatsu M
    • Organizer
      The 10th International Symposium on Autophagy
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 水晶体における全オルガネラ分解現象の分子機構と意義の解明2022

    • Author(s)
      森下英晃
    • Organizer
      第64回日本脂質生化学会シンポジウム
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 肺の恒常性 オートファジーとサーファクタント2022

    • Author(s)
      森下英晃
    • Organizer
      日本肺サーファクタント・界面医学会第58回学術研究会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Proteomic approach of purified p62-body and selective autophagy-defective mice reveals a novel p62-mediated selective autophagy2022

    • Author(s)
      Komatsu M, Kurusu R, Fujimoto Y, Morishita H
    • Organizer
      EMBO Autophagy meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] p62液滴精製による新規選択的オートファジー基質の同定2021

    • Author(s)
      藤本 侑生, 来栖 玲央, 森下 英晃, 小松 雅明
    • Organizer
      第94回日本生化学会大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 日本生化学会奨励賞受賞記念講演:水晶体における大規模細胞小器官分解の分子機構と生理的意義の解明2021

    • Author(s)
      森下 英晃
    • Organizer
      第94回日本生化学会大会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Ken-ichi Arai Award 2021受賞記念講演:Physiological roles and molecular mechanisms of autophagy-dependent and independent degradation systems in vertebrates.2021

    • Author(s)
      Hideaki Morishita
    • Organizer
      The 27th East Asia Joint Symposium
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Book] 肝胆膵2021

    • Author(s)
      森下英晃、小松雅明
    • Total Pages
      8
    • Publisher
      アークメディア
    • Related Report
      2020 Annual Research Report
  • [Remarks] 生体内における多様な細胞内分解現象のメカニズムを解明し、疾患の理解・治療への貢献を目指す

    • URL

      https://goodhealth.juntendo.ac.jp/medical/000159.html

    • Related Report
      2021 Annual Research Report
  • [Remarks] 森下英晃講師が令和4年度 科学技術分野 文部科学大臣表彰 若手科学者賞を受賞

    • URL

      https://www.juntendo.ac.jp/news/20220408-01.html

    • Related Report
      2021 Annual Research Report

URL: 

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

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