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新しく発見したオートファジー機構を介した蛋白質品質管理システムの解析

Publicly Offered Research

Project AreaProtein community: organization and maintenance of protein functions
Project/Area Number 22020009
Research Category

Grant-in-Aid for Scientific Research on Priority Areas

Allocation TypeSingle-year Grants
Review Section Biological Sciences
Research InstitutionTokyo Medical and Dental University

Principal Investigator

清水 重臣  東京医科歯科大学, 難治疾患研究所, 教授 (70271020)

Project Period (FY) 2010 – 2011
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥6,400,000 (Direct Cost: ¥6,400,000)
Fiscal Year 2011: ¥3,200,000 (Direct Cost: ¥3,200,000)
Fiscal Year 2010: ¥3,200,000 (Direct Cost: ¥3,200,000)
Keywords遺伝学 / シグナル伝達 / 生体分子 / ストレス / オートファジー / 貧血 / 発癌 / alternative macroautohagy / Atg5 / 低分子化合物
Research Abstract

オートファジーは、細胞が古くなった自己構成成分を消化、再利用する浄化機構であり、全ての細胞が普遍的に有している細胞機能である。本研究では、我々が発見したAtg5/Atg7非依存性オートファジー機構に関して、1、分子機構の解明、2、生物学的役割、3、Atg5依存性オートファジーとの相互作用、に関して検討を行い、以下の成果を得た。
1、Atg5/Atg7非依存性オートファジー分子機構の解明:従来まで同定していたUlk1,Beclin1,Rab9に加えて、さらに7種類の蛋白質が、Atg5/Atg7非依存性オートファジーに関与している事を見出した。これらの蛋白質は、データベースサーチ、Ulk1結合蛋白質、新規オートファジー誘導化合物の分子標的として同定したものである。
2、生理機能解析:Atg5/Atg7非依存性オートファジー分子を欠損させたマウスを5種類作製した。これらのうち2種類のノックアウトマウスに関して解析を進めた。その結果、いずれのマウスにおいても、赤血球の分化異常による貧血症、発癌率の上昇が観察された。即ち、Atg5/Atg7非依存性オートファジーは、これらの生命現象に深く関わっている事が示された。
3、Atg5依存性オートファジーとの相互作用:上記2種類のノックアウトマウスをAtg5欠損マウスと交配したところ、いずれにおいても貧血症の増悪が観察された。即ち、Atg5依存性オートファジーと非依存性オートファジーは相加的な役割を担っている事が明らかとなった。

Report

(2 results)
  • 2011 Annual Research Report
  • 2010 Annual Research Report
  • Research Products

    (28 results)

All 2012 2011 2010 Other

All Journal Article (15 results) (of which Peer Reviewed: 15 results) Presentation (10 results) Book (1 results) Remarks (2 results)

  • [Journal Article] Involvement of Beclin 1 in the engulfment of apoptotic cells2012

    • Author(s)
      Konishi A, Arakawa S, Yue Z, Shimizu S
    • Journal Title

      J.Biol.Chem.

      Volume: (epub) Issue: 17 Pages: 13919-13929

    • DOI

      10.1074/jbc.m112.348375

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Shigella Targets Epithelial Tricellular Junctions to Spread Between Cells via a Noncanonical Clathrin-dependent Endocytic Pathway2012

    • Author(s)
      Makoto Fukumatsu
    • Journal Title

      Cell Host & Microbe

      Volume: (in press)

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Delayed-onset caspase-dependent massive hepatocyte apoptosis upon Fasactivation in Bak/Bax-deficient mice2011

    • Author(s)
      Hikita, H.
    • Journal Title

      Hepatology

      Volume: VOL. 54 Issue: 1 Pages: 240-251

    • DOI

      10.1002/hep.24305

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spatial coupling of mTOR and autophagy augments secretory/phenotypes2011

    • Author(s)
      Masako Narita
    • Journal Title

      Science

      Volume: 332 Issue: 6032 Pages: 966-970

    • DOI

      10.1126/science.1205407

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Stress-activated protein kinase MKK7 regulates axon elongation in the developing cerebral cortex2011

    • Author(s)
      Tokiwa Yamasaki
    • Journal Title

      Journal of Neuroscience

      Volume: 31 Pages: 16872-16883

    • Related Report
      2011 Annual Research Report
    • Peer Reviewed
  • [Journal Article] p53 Inhibits Vascular Endothelial Growth Factor Expression in Solid Tumor2011

    • Author(s)
      Y.Yoshioka, et al.
    • Journal Title

      J Surg Res.

      Volume: (印刷中)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Delayed-onset caspase-dependent massive hepatocyte apoptosis upon Fas activation in Bak/Bax-deficient mice2011

    • Author(s)
      H.Hikita, et al.
    • Journal Title

      Hepatology

      Volume: (印刷中)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Spatial coupling of mTOR and autophagy augments secretory phenotypes2011

    • Author(s)
      M.Narita, et al.
    • Journal Title

      Science

      Volume: (印刷中)

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Involvement of JNK in the regulation of autophagic cell death2010

    • Author(s)
      S.Shimizu, et al.
    • Journal Title

      Oncogene

      Volume: 29 Pages: 2070-2082

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] xCT deficiency accelerates chemically induced tumorigenesis2010

    • Author(s)
      A.Nabeyama, et al.
    • Journal Title

      Proc.Natl.Acad.Ssi.USA

      Volume: 107 Pages: 6436-6441

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Autophagy takes an alternative pathway2010

    • Author(s)
      S.Shimizu, et al.
    • Journal Title

      Autophagy

      Volume: 6 Pages: 290-291

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The role of cyclophilin D in learning and memory2010

    • Author(s)
      A.Mouri, et al.
    • Journal Title

      Hippocampus

      Volume: 20 Pages: 293-304

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Cyclophilin D-dependent mitochondrial permeability transition is not involved in neurodegeneration in mnd2 mice2010

    • Author(s)
      K.Ideguchi, et al.
    • Journal Title

      Biochem.Biophys.Res.Commun.

      Volume: 393 Pages: 264-267

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Preparation of connexin43-integrated giant Liposomes by a baculovirus expression-liposome fusion method2010

    • Author(s)
      K.Kamiya, et al.
    • Journal Title

      Biotechnol.Bioeng.

      Volume: 107 Pages: 836-843

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Neurodegeneration in mnd2 mutant mice is not prevented by parkin transgene2010

    • Author(s)
      T.Yoshida, et al.
    • Journal Title

      Biochem.Biophys.Res.Commun.

      Volume: 393 Pages: 264-267

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Presentation] Various Types of Cell Death and Autophagy2011

    • Author(s)
      Shigeomi Shimizu
    • Organizer
      第34回日本分子生物学会年会
    • Place of Presentation
      横浜市
    • Year and Date
      2011-12-15
    • Related Report
      2011 Annual Research Report
  • [Presentation] 生体で見られる様々な細胞死とオートファジー2011

    • Author(s)
      清水重臣
    • Organizer
      第1回横断的腫瘍フォーラム
    • Place of Presentation
      吹田市(招待講演)
    • Year and Date
      2011-12-07
    • Related Report
      2011 Annual Research Report
  • [Presentation] アポトーシスと非アポトーシス細胞死2011

    • Author(s)
      清水重臣
    • Organizer
      第73回日本血液学会
    • Place of Presentation
      名古屋市(招待講演)
    • Year and Date
      2011-10-14
    • Related Report
      2011 Annual Research Report
  • [Presentation] 様々な疾患を惹起するミトコンドリア細胞死孔の解析2011

    • Author(s)
      清水重臣
    • Organizer
      第84回日本生化学会
    • Place of Presentation
      京都市
    • Year and Date
      2011-09-24
    • Related Report
      2011 Annual Research Report
  • [Presentation] オートファジーと神経変性疾患2011

    • Author(s)
      清水重臣
    • Organizer
      「病態に根ざしたALSの新規治療法開発班」平成23年度ワークショップ
    • Place of Presentation
      千代田区(招待講演)
    • Year and Date
      2011-09-22
    • Related Report
      2011 Annual Research Report
  • [Presentation] オートファジーを標的とした難治疾患克服への戦略2011

    • Author(s)
      清水重臣
    • Organizer
      新適塾「難病への挑戦」
    • Place of Presentation
      豊中市(招待講演)
    • Year and Date
      2011-09-02
    • Related Report
      2011 Annual Research Report
  • [Presentation] 細胞死とオートファジーのクロストーク2011

    • Author(s)
      清水重臣
    • Organizer
      日本Cell Death学会
    • Place of Presentation
      文京区
    • Year and Date
      2011-07-29
    • Related Report
      2011 Annual Research Report
  • [Presentation] Alternative macroautophagy2011

    • Author(s)
      Shigeomi Shimizu
    • Organizer
      Parkinson Disease and Mitophagy
    • Place of Presentation
      文京区
    • Year and Date
      2011-06-11
    • Related Report
      2011 Annual Research Report
  • [Presentation] Discovery of Atg5/Atg7-independent alternative macroautophagy2010

    • Author(s)
      S.Shimizu
    • Organizer
      6^<th> Institute network symposium
    • Place of Presentation
      Kanazawa
    • Year and Date
      2010-06-25
    • Related Report
      2010 Annual Research Report
  • [Presentation] A critical role for the autophagy gene Ulkl in Atg5- independent alternative macroautophagy2010

    • Author(s)
      S.Shimizu
    • Organizer
      Gordon Conference
    • Place of Presentation
      Lucca, Italy
    • Year and Date
      2010-04-25
    • Related Report
      2010 Annual Research Report
  • [Book] 細胞死解析プロトコール2011

    • Author(s)
      清水重臣
    • Total Pages
      223
    • Publisher
      羊土社
    • Related Report
      2011 Annual Research Report
  • [Remarks]

    • URL

      http://www.tmd.ac.jp/mri/pcb/index.html

    • Related Report
      2011 Annual Research Report
  • [Remarks]

    • URL

      http://www.tmd.ac.jp/mri/pcb/index.html

    • Related Report
      2010 Annual Research Report

URL: 

Published: 2010-08-23   Modified: 2018-03-28  

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