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新規AMPA受容体制御因子群によるシナプス機能制御の解明

Research Project

Project/Area Number 20670005
Research Category

Grant-in-Aid for Young Scientists (S)

Allocation TypeSingle-year Grants
Research Field Neurochemistry/Neuropharmacology
Research InstitutionNational Institute for Physiological Sciences

Principal Investigator

深田 正紀  National Institute for Physiological Sciences, 教授 (00335027)

Project Period (FY) 2008 – 2012
Project Status Completed (Fiscal Year 2011)
Budget Amount *help
¥80,730,000 (Direct Cost: ¥62,100,000、Indirect Cost: ¥18,630,000)
Fiscal Year 2011: ¥20,800,000 (Direct Cost: ¥16,000,000、Indirect Cost: ¥4,800,000)
Fiscal Year 2010: ¥20,800,000 (Direct Cost: ¥16,000,000、Indirect Cost: ¥4,800,000)
Fiscal Year 2009: ¥20,800,000 (Direct Cost: ¥16,000,000、Indirect Cost: ¥4,800,000)
Fiscal Year 2008: ¥18,330,000 (Direct Cost: ¥14,100,000、Indirect Cost: ¥4,230,000)
Keywords神経科学 / AMPA受容体 / グルタミン酸受容体 / シナプス / パルミトイル化修飾 / てんかん / シナプス伝達修飾分子 / リガンド/受容体 / リガンド / 受容体 / 生化学
Research Abstract

シナプス間の情報伝達効率は使用状況によって柔軟に変化し、記憶や学習など脳高次機能の分子基盤を成す。この機構の破綻はてんかん等の神経疾患の重要な一因と考えられている。AMPA型グルタミン酸受容体(AMPA受容体)は脳内の興奮性神経伝達の大部分を司るので、AMPA受容体の輸送機構は現在の神経科学における極めて重要な命題である。本研究ではこの命題に対し、独自の生化学的手法により同定した1)パルミトイル化脂質修飾酵素および2)てんかん関連リガンドLGI1に着目して、AMPA受容体制御機構の全容を明らかにすることを目的としている。
1)AMPA受容体の発現量はシナプスに存在する足場蛋白質PSD-95(パルミトイル化PSD-95)の量に依存する。今年度はパルミトイル化PSD-95を特異的に認識するプローブを開発し、内在性パルミトイル化PSD-95の動態を可視化することに成功した(Fukata Y et al,投稿中)。これは脂質修飾を受けた蛋白質を特異的に認識する抗体を得たという点でも画期的だと言える。
2)一方、私どもは前年度に引き続きLGI1のノックアウトマウスの性状解析を行い、LGI1ノックアウトマウスにおけるAMPA受容体機能異常および、海馬組織における局在異常を見出した(Yokoi N et al,投稿準備中)。さらに、てんかんの焦点を明らかにするために脳の領域特異的な機能回復実験を進めている。このように今年度の研究計画は達成できたと考えている。

Report

(3 results)
  • 2010 Annual Research Report
  • 2009 Annual Research Report
  • 2008 Annual Research Report
  • Research Products

    (54 results)

All 2011 2010 2009 2008 Other

All Journal Article (20 results) (of which Peer Reviewed: 17 results) Presentation (29 results) Book (2 results) Remarks (3 results)

  • [Journal Article] Subcellular Golgi localization of Stathmin family proteins is promoted by a specific set of DHHC palmitoyl transferases2011

    • Author(s)
      Levy AD, et al.
    • Journal Title

      Mol Biol Cell

      Volume: in press

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Disruption of LGI1-linked synaptic complex causes abnormal synaptic transmission and epilepsy2010

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

      Proc Natl Acad Sci USA

      Volume: 107 Pages: 3799-3804

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Protein palmitoylation in neuronal development and synaptic plasticity2010

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

      Nat Rev Neurosci

      Volume: 11 Pages: 161-175

    • Related Report
      2010 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Disruption of LGI1-linked synaptic complex causes abnormal synaptic transmission and epilepsy2010

    • Author(s)
      Fukata Y, et al
    • Journal Title

      Proc Natl Acad Sci USA (In press)

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Protein palmitoylation in neuronal development and synaptic plasticity2010

    • Author(s)
      Fukata Y, et al
    • Journal Title

      Nat Rev Neurosci (In press)

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Mobile DHHC palmitoylating enzyme mediates activity-sensitive synaptic targeting of PSD-952009

    • Author(s)
      Noritake J, et al
    • Journal Title

      J Cell Biol 186

      Pages: 147-160

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Differential activity-dependent secretion of brain-derived neurotrophic factor from axon and dendrite2009

    • Author(s)
      Matsuda N, et al
    • Journal Title

      J Neurosci 29

      Pages: 14185-14198

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Palmitoylation Regulates Epidermal Homeostasis and Hair Follicle Differentiation2009

    • Author(s)
      Mill P, et al
    • Journal Title

      PLoS Genetics 11

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Ndell palmitoylation : a new mean to regulate cytoplasmic dynein activity2009

    • Author(s)
      Shmueli A, et al
    • Journal Title

      EMBO J 29

      Pages: 107-119

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dynamic protein palmitoylation in cellular signaling2009

    • Author(s)
      Iwanaga T, et al
    • Journal Title

      Prog Lipid Res 48

      Pages: 117-127

    • Related Report
      2009 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The Hydrophobic cysteine-rich domain of SNAP25 couples with downstream residues to mediated membrane interactions and recognitions by DHHC palmitoyl transferases2009

    • Author(s)
      Greaves, J., et al.
    • Journal Title

      Mol. Biol. Cell 20

      Pages: 1845-1854

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Alzheimer disease Abeta production in the absence of S-palmitoylation-dependent targeting of BACE1 to lipid rafts2009

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

      J. Biol. Chem. 284

      Pages: 3793-3803

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Identification of G-protein alpha subunit palmitoylating enzyme2009

    • Author(s)
      Tsutsumi, R., et al.
    • Journal Title

      Mol. Cell. Biol. 29

      Pages: 435-447

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dynamic protein palmitoylation in cellular signaling2009

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

      Prog Lipid Res.

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 生化学2008

    • Author(s)
      堤良平, ら
    • Journal Title

      日本生化学学会

      Pages: 1119-1123

    • Related Report
      2008 Annual Research Report
  • [Journal Article] AMPA型グルタミン酸受容体の動態制御機構2008

    • Author(s)
      深田優子, ら
    • Journal Title

      日本神経薬理学会雑誌

      Pages: 131-134

    • NAID

      10023965705

    • Related Report
      2008 Annual Research Report
  • [Journal Article] Fibroblast Growth Factor-Regulated Palmitoylation of NCAM Determines Neuronal Morphogenesis2008

    • Author(s)
      Ponimaskin, E., et al.
    • Journal Title

      J. Neurosci. 28

      Pages: 88897-88907

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Discovery of protein-palmitoylating enzymes2008

    • Author(s)
      Tsutsumi, R., et al.
    • Journal Title

      Pflugers Arch-Eur. J. Physiol. 456

      Pages: 1199-1206

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article] DHHC proteins regulate stable membrane binding of the molecular chaperone cysteine-string protein2008

    • Author(s)
      Greaves, J., et al.
    • Journal Title

      J. Biol. Chem. 283

      Pages: 25014-25026

    • Related Report
      2008 Annual Research Report
    • Peer Reviewed
  • [Journal Article]

    • Author(s)
      Greaves, J., et al.
    • Related Report
      2008 Annual Research Report
  • [Presentation] Determinant role of PSD-95-palmitoylacylransferase, DHHC2, in postsynaptic assembly2010

    • Author(s)
      Noritake J, et al.
    • Organizer
      50th Annual Meeting The American Society for Cell Biology
    • Place of Presentation
      Philadelphia, PA(アメリカ合衆国)
    • Year and Date
      2010-12-14
    • Related Report
      2010 Annual Research Report
  • [Presentation] Functional Analysis of An Epilepsy-Related Neuronal Secreted Protein, LGI12010

    • Author(s)
      Yokoi N , et al.
    • Organizer
      50th Annual Meeling The American Society for Cell Biology
    • Place of Presentation
      Philadelphia, PA(アメリカ合衆国)
    • Year and Date
      2010-12-14
    • Related Report
      2010 Annual Research Report
  • [Presentation] 構造特異的バイオセンサーによるパルミトイル化PSD-95の動態可視化2010

    • Author(s)
      深田正紀, ら
    • Organizer
      第33回日本分子生物学会年会・第83回日本生化学会大会合同大会
    • Place of Presentation
      神戸国際会議場(兵庫県)
    • Year and Date
      2010-12-09
    • Related Report
      2010 Annual Research Report
  • [Presentation] Identification of neurochondrin/norbiu as a palmitovlated synaptic protein2010

    • Author(s)
      Oku S, et al.
    • Organizer
      40th Annual Meeting Neuroscience 2010 SFN
    • Place of Presentation
      San Diego, CA(アメリカ合衆国)
    • Year and Date
      2010-11-13
    • Related Report
      2010 Annual Research Report
  • [Presentation] シナプスにおけるPSD-95パルミトイル化酵素P-PATの活性制御機構2010

    • Author(s)
      則竹淳, ら
    • Organizer
      名古屋大学医学研究科・生理学研究所合同シンポジウム
    • Place of Presentation
      生理学研究所(愛知県)
    • Year and Date
      2010-08-21
    • Related Report
      2010 Annual Research Report
  • [Presentation] AMPA受容体の制御分子群2010

    • Author(s)
      深田正紀
    • Organizer
      包括型脳科学研究推進支援ネットワーク第1回夏のワークショップ
    • Place of Presentation
      北海道厚生年金会館(北海道)
    • Year and Date
      2010-07-29
    • Related Report
      2010 Annual Research Report
  • [Presentation] Conformation specific biosensor for palmitoylated PSD-95 reveals a determinant role of DHHC2 in poslsvnaptic specialization2010

    • Author(s)
      Fukata M, et al.
    • Organizer
      Gordon Research Conferences "Cell Biology of the Neuron"
    • Place of Presentation
      Watcrville Valley, NH(アメリカ合衆国)
    • Year and Date
      2010-06-29
    • Related Report
      2010 Annual Research Report
  • [Presentation] Possible involvement of epilepsy-related ligand/receptors, LGII/ADAM22/ADAM23 in trans-synaptic interaction2010

    • Author(s)
      Fukata Y, et al.
    • Organizer
      Gordon Research Conferences "Cell Biologv of the Neuron"
    • Place of Presentation
      Waterville Valley, NH(アメリカ合衆国)
    • Year and Date
      2010-06-29
    • Related Report
      2010 Annual Research Report
  • [Presentation] PSD-95パルミトイル化脂質修飾酵素によるシナプス機能制御-内在性パルミトイル化PSD-95の動態可視化への挑戦-2010

    • Author(s)
      深田正紀, ら
    • Organizer
      平成22年度生理学研究所研究会「シナプス可塑性の動作原理」
    • Place of Presentation
      生理学研究所(愛知県)
    • Year and Date
      2010-06-10
    • Related Report
      2010 Annual Research Report
  • [Presentation] PSD-95 palmitoylation upon synaptic activity regulates AMP A receptor homeostasis2010

    • Author(s)
      則竹淳, ら
    • Organizer
      第74回日本生化学会中部支部例会
    • Place of Presentation
      名古屋大学(愛知県)
    • Year and Date
      2010-05-29
    • Related Report
      2010 Annual Research Report
  • [Presentation] Characterization of the novel large palmitoyl acyltransferase family "Systematic identification of DHHC-PAT interacting proteins"2009

    • Author(s)
      奥慎一郎, ら
    • Organizer
      第32回日本分子生物学会大会
    • Place of Presentation
      パシフィコ横浜(横浜)
    • Year and Date
      2009-12-12
    • Related Report
      2009 Annual Research Report
  • [Presentation] Activity-sensitive synaptic palmitoylation of PSD-95 mediates AMPA receptor homeostasis2009

    • Author(s)
      深田正紀
    • Organizer
      Japan-Taiwan Joint Symposium on Cell Signaling and Gene Regulation
    • Place of Presentation
      神戸国際会議場(神戸)
    • Year and Date
      2009-11-11
    • Related Report
      2009 Annual Research Report
  • [Presentation] In vivo function of epilepsy-related ligand LGI12009

    • Author(s)
      深田優子, ら
    • Organizer
      36th International Congress of Physiological Sciences
    • Place of Presentation
      国立京都国際会館(京都)
    • Year and Date
      2009-07-30
    • Related Report
      2009 Annual Research Report
  • [Presentation] Gα palmitoylating enzymes2009

    • Author(s)
      堤良平, ら
    • Organizer
      36th International Congress of Physiological Sciences
    • Place of Presentation
      国立京都国際会館(京都)
    • Year and Date
      2009-07-30
    • Related Report
      2009 Annual Research Report
  • [Presentation] A Recombinant antibody to track endogenous palmitoylated PSD-952009

    • Author(s)
      深田正紀, ら
    • Organizer
      36th International Congress of Physiological Sciences
    • Place of Presentation
      国立京都国際会館(京都)
    • Year and Date
      2009-07-28
    • Related Report
      2009 Annual Research Report
  • [Presentation] Activity-sensitive synaptic palmitoylation of PSD-95 is in volved in AMPA receptor homeostasis2009

    • Author(s)
      則竹淳, ら
    • Organizer
      36th International Congress of Physiological Sciences
    • Place of Presentation
      国立京都国際会館(京都)
    • Year and Date
      2009-07-27
    • Related Report
      2009 Annual Research Report
  • [Presentation] パルイトイル化酵素ファミリーによるシナプス機能制御2009

    • Author(s)
      深田正紀
    • Organizer
      第52回日本神経化学会大会
    • Place of Presentation
      伊香保温泉ホテル天坊(渋川)
    • Year and Date
      2009-06-23
    • Related Report
      2009 Annual Research Report
  • [Presentation] BDNFの神経活動依存的遊離の可視化2009

    • Author(s)
      松田尚人, ら
    • Organizer
      第52回日本神経化学会大会
    • Place of Presentation
      伊香保温泉ホテル天坊(渋川)
    • Year and Date
      2009-06-23
    • Related Report
      2009 Annual Research Report
  • [Presentation] Synaptic activity regulates PSD-95 palmitoylating enzymes2009

    • Author(s)
      深田正紀, ら
    • Organizer
      The 9th Human Frontier Science Program Awardees Meeting
    • Place of Presentation
      学術総合センター(東京)
    • Year and Date
      2009-06-03
    • Related Report
      2009 Annual Research Report
  • [Presentation] 神経活動依存的なPSD-95パルミトイル化によるAMPA型グルタミン酸受容体の恒常性の制御2009

    • Author(s)
      則竹淳, ら
    • Organizer
      第61回日本細胞生物学会大会
    • Place of Presentation
      名古屋国際会議場(名古屋)
    • Year and Date
      2009-06-02
    • Related Report
      2009 Annual Research Report
  • [Presentation] DHHCパルミトイル化酵素によるGαの動態制御2009

    • Author(s)
      堤良平, ら
    • Organizer
      第61回日本細胞生物学会大会
    • Place of Presentation
      名古屋国際会議場(名古屋)
    • Year and Date
      2009-06-02
    • Related Report
      2009 Annual Research Report
  • [Presentation] Synaptic palmitoylation of PSD-95 mediates AMPA receptor homeostasis2009

    • Author(s)
      深田正紀, ら
    • Organizer
      11th International Neurochemistry Winter Conference
    • Place of Presentation
      Solden, Austria
    • Year and Date
      2009-04-03
    • Related Report
      2009 Annual Research Report 2008 Annual Research Report
  • [Presentation] In vivo function of epilepsy-related ligand LGI12009

    • Author(s)
      深田優子, ら
    • Organizer
      11th International Neurochemistry Winter Conference
    • Place of Presentation
      Solden, Austria
    • Year and Date
      2009-04-03
    • Related Report
      2009 Annual Research Report 2008 Annual Research Report
  • [Presentation] Physiological role of epilepsy-related ligand LGI1 in synaptic function2008

    • Author(s)
      深田優子, ら
    • Organizer
      The 48th American Society for Cell Biology Annual Meeting
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      2008-12-16
    • Related Report
      2008 Annual Research Report
  • [Presentation] Synaptic palmitoylation of PSD-95 mediates AMPA receptor homeostasis2008

    • Author(s)
      深田正紀, ら
    • Organizer
      The 48th American Society for Cell Biology Annual Meeting
    • Place of Presentation
      San Francisco, USA
    • Year and Date
      2008-12-14
    • Related Report
      2008 Annual Research Report
  • [Presentation] シナプス伝達修飾分子LGIファミリーの性状解析2008

    • Author(s)
      岩永剛, ら
    • Organizer
      第31回日本分子生物学会、第81回日本生化学会大会合同大会BMB2008
    • Place of Presentation
      神戸
    • Year and Date
      2008-12-12
    • Related Report
      2008 Annual Research Report
  • [Presentation] Gαパルミトイル化酵素の同定と性状解析2008

    • Author(s)
      堤良平, ら
    • Organizer
      第31回日本分子生物学会、第81回日本生化学会大会合同大会BMB2008
    • Place of Presentation
      神戸
    • Year and Date
      2008-12-10
    • Related Report
      2008 Annual Research Report
  • [Presentation] Activity-Dependent Regulation of the PSD-95 Palmitoylating Enzyme2008

    • Author(s)
      則竹淳, ら
    • Organizer
      第31回日本神経科学大会
    • Place of Presentation
      横浜
    • Year and Date
      2008-07-10
    • Related Report
      2008 Annual Research Report
  • [Presentation] Synaptic activity regulates PSD-95 palmitoylating enzymes2008

    • Author(s)
      深田正紀, ら
    • Organizer
      The 8th Human Frontier Science Program Awardees Meeting
    • Place of Presentation
      Solden, Austria
    • Year and Date
      2008-07-08
    • Related Report
      2008 Annual Research Report
  • [Book] シナプス伝達修飾分子LGI1の機能異常による"てんかん"発症2010

    • Author(s)
      横井紀彦, ら
    • Total Pages
      7
    • Publisher
      Medical Bio : オーム社
    • Related Report
      2010 Annual Research Report
  • [Book] 秀潤社細胞工学2010

    • Author(s)
      岩永剛, ら
    • Publisher
      LGI1が仲介するタンパク質複合体の破綻はシナプス伝達異常とてんかんを引き起こす(In press)
    • Related Report
      2009 Annual Research Report
  • [Remarks]

    • URL

      http://www.nips.ac.jp/fukata

    • Related Report
      2010 Annual Research Report
  • [Remarks]

    • URL

      http://www.nips.ac.jp/fukata/

    • Related Report
      2009 Annual Research Report
  • [Remarks]

    • URL

      http://www.nips.ac.jp/fukata/

    • Related Report
      2008 Annual Research Report

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Published: 2008-04-01   Modified: 2016-04-21  

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