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神経シナプス膜のナノドメイン構築と脂質環境

Publicly Offered Research

Project AreaQuality of lipids in biological systems
Project/Area Number 16H01371
Research Category

Grant-in-Aid for Scientific Research on Innovative Areas (Research in a proposed research area)

Allocation TypeSingle-year Grants
Review Section Biological Sciences
Research InstitutionNational Institute for Physiological Sciences

Principal Investigator

深田 正紀  生理学研究所, 分子細胞生理研究領域, 教授 (00335027)

Project Period (FY) 2016-04-01 – 2018-03-31
Project Status Completed (Fiscal Year 2017)
Budget Amount *help
¥9,880,000 (Direct Cost: ¥7,600,000、Indirect Cost: ¥2,280,000)
Fiscal Year 2017: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2016: ¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Keywords脂質 / シナプス / 蛋白質 / シナプス伝達 / パルミトイル化修飾 / 脱パルミトイル化修飾 / ABHD17 / PSD-95 / 脳・神経 / 酵素 / 生理学 / ナノドメイン / 脱パルミトイル化酵素
Outline of Annual Research Achievements

神経シナプスは、シナプス伝達に関わる機能蛋白質が高度に集積する特殊な細胞膜領域からなる。蛋白質構成に加え固有の膜脂質構成がシナプスの微小膜環境を形成すると予測されるが、その脂質環境の本態や生理機能はいまだ不明である。これまでに私共は(1)シナプス後膜(PSD)の足場蛋白質PSD-95のパルミトイル化脂質修飾が、PSD構成単位である“PSDナノドメイン”の形成を担うこと、(2)シナプス膜に集積する蛋白質の多くが、高度かつ多重にパルミトイル化されていることを見出した。そこで本研究では、パルミトイル化脂質修飾のON・OFFを担う酵素群がナノドメイン脂質環境に与える影響、神経機能における生理機能を明らかにすることを目指す。平成28年度、私共はPSD-95脱パルミトイル化酵素としてα/β-hydrolase domain-containing protein(ABHD)17A、17B、17Cを同定した。しかし、ABHD17酵素の基質特異性、活性制御機構、細胞内局在、生理機能については未だ十分に明らかにされていない。そこで平成29年度は、オランダ・ユトレヒト大学のHoogenraad博士との共同研究を通じて、ABHD17の新規基質として微小管結合タンパク質MAP6同定した。MAP6はパルミトイル化修飾により輸送小胞膜に局在するが、ABHD17により脱パルミトイル化をうけると小胞膜から離脱し、微小管に結合することを見出した。そしてMAP6は微小管を安定化し、軸索形成や神経細胞の極性化を促進することを見出した(Tortosa E et al, Neuron 2017)。このように、パルミトイル化サイクルがシナプス機能のみならず、軸索形成や神経細胞の成熟・極性化にも重要な役割を担うことを明らかにした。

Research Progress Status

29年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

29年度が最終年度であるため、記入しない。

Report

(2 results)
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (29 results)

All 2018 2017 2016 Other

All Int'l Joint Research (4 results) Journal Article (11 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 11 results,  Open Access: 5 results,  Acknowledgement Compliant: 3 results) Presentation (10 results) (of which Int'l Joint Research: 6 results,  Invited: 9 results) Book (1 results) Remarks (3 results)

  • [Int'l Joint Research] Utrecht University(オランダ)

    • Related Report
      2017 Annual Research Report
  • [Int'l Joint Research] University of California, San Francisco(米国)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] University of Helsinki(Finland)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] DZNE(Germany)

    • Related Report
      2016 Annual Research Report
  • [Journal Article] Structural basis of epilepsy-related ligand-receptor complex LGI1-ADAM222018

    • Author(s)
      Yamagata A, Miyazaki Y, Yokoi N, Shigematsu H, Sato Y, Goto-Ito S, Maeda A, Goto T, Sanbo M, Hirabayashi M, Shirouzu M, Fukata Y, Fukata M, Fukai S
    • Journal Title

      Nat Commun

      Volume: 印刷中

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Neurobiology of autoimmune encephalitis.2018

    • Author(s)
      Fukata M, Yokoi N, Fukata Y.
    • Journal Title

      Curr Opin Neurobiol

      Volume: 48 Pages: 1-8

    • DOI

      10.1016/j.conb.2017.07.012

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] パルミトイル化修飾酵素を軸とした神経機能研究2018

    • Author(s)
      平田 哲也,深田 優子,深田 正紀
    • Journal Title

      生化学

      Volume: 90

    • NAID

      40021617357

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Dynamic Palmitoylation Targets MAP6 to the Axon to Promote Microtubule Stabilization during Neuronal Polarization2017

    • Author(s)
      Tortosa E, Adolfs Y, Fukata M, Pasterkamp RJ, Kapitein LC, Hoogenraad CC
    • Journal Title

      Neuron

      Volume: 94 Issue: 4 Pages: 809-825

    • DOI

      10.1016/j.neuron.2017.04.042

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Secreted Metalloproteinase ADAMTS-3 Inactivates Reelin2017

    • Author(s)
      Ogino H, Hisanaga A, Kohno T, Kondo Y, Okumura K, Kamei T, Sato T, Asahara H, Tsuiji H, Fukata M, Hattori M
    • Journal Title

      J Neurosci

      Volume: 37 Issue: 12 Pages: 3181-3191

    • DOI

      10.1523/jneurosci.3632-16.2017

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] In situ screening for postsynaptic cell adhesion molecules during synapse formation.2017

    • Author(s)
      Uemura T, Maeda A, Yasumura M, Shimada T, Fukata Y, Fukata M, Yoshida T
    • Journal Title

      Journal of Biochemistry

      Volume: 印刷中 Pages: 295-302

    • DOI

      10.1093/jb/mvx030

    • NAID

      40021380573

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Coupling of a voltage-gated Ca2+ channel homologue with a plasma membrane H+-ATPase in yeast2017

    • Author(s)
      Cho T, Ishii-Kato A, Fukata Y, Nakayama Y, Iida K, Fukata M, Iida H
    • Journal Title

      Genes Cells

      Volume: 22 Issue: 1 Pages: 94-104

    • DOI

      10.1111/gtc.12458

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Epilepsy and synaptic proteins2017

    • Author(s)
      Fukata Y, Fukata M
    • Journal Title

      Curr Opin Neurobiol

      Volume: 45 Pages: 1-8

    • DOI

      10.1016/j.conb.2017.02.001

    • Related Report
      2017 Annual Research Report 2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Astrocyte-mediated infantile-onset leukoencephalopathy mouse model2017

    • Author(s)
      Sugio S, Tohyama K, Oku S, Fujiyoshi K, Yoshimura T, Hikishima K, Yano R, Fukuda T, Nakamura M, Okano H, Watanabe M1, Fukata M, Ikenaka K, F Tanaka K
    • Journal Title

      Glia

      Volume: 65 Issue: 1 Pages: 150-168

    • DOI

      10.1002/glia.23084

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] The LGI1-ADAM22 protein complex in synaptic transmission and synaptic disorders2017

    • Author(s)
      Fukata Y, Yokoi N, Miyazaki Y, Fukata M
    • Journal Title

      Neurosci Res

      Volume: 116 Pages: 39-45

    • DOI

      10.1016/j.neures.2016.09.011

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Identification of PSD-95 depalmitoylating enzymes2016

    • Author(s)
      Yokoi N*, Fukata Y*, Sekiya A, Murakami T, Kobayashi K, Fukata M
    • Journal Title

      J Neurosci

      Volume: 36 Issue: 24 Pages: 6431-6444

    • DOI

      10.1523/jneurosci.0419-16.2016

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Pathophysiological role of epilepsy-related LGI1 and ADAM22 in hippocampal synaptic development2017

    • Author(s)
      Masaki Fukata
    • Organizer
      Spring Hippocampal Research Conference
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Local palmitoylation machinery in the postsynaptic nanodomain organization2017

    • Author(s)
      Masaki Fukata
    • Organizer
      5th Annual iGluR Retreat
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Role of local palmitoylation machinery in the postsynaptic nanodomain organization2017

    • Author(s)
      Masaki Fukata, Norihiko Yokoi, Yuko Fukata
    • Organizer
      13th International congress of the Polish Neuroscience Society
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 局所パルミトイル化サイクルによるシナプス・ナノドメイン構築2017

    • Author(s)
      Masaki Fukata
    • Organizer
      2017年度生命科学系学会合同年次大会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] Regulatory mechanisms for AMPA receptors through PSD-952016

    • Author(s)
      Masaki Fukata
    • Organizer
      The 47th NIPS International Symposium “Decoding Synapses”
    • Place of Presentation
      岡崎コンファレンスセンター、岡崎市、愛知県
    • Year and Date
      2016-10-26
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Regulators of glutamate receptors and epilepsy2016

    • Author(s)
      Masaki Fukata
    • Organizer
      第50回日本てんかん学会学術集会
    • Place of Presentation
      グランシップ、静岡市、静岡県
    • Year and Date
      2016-10-07
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Postsynaptic nanodomains regulated by local palmitoylation machinery2016

    • Author(s)
      Masaki Fukata, Norihiko Yokoi, Atsushi Sekiya, Tatsuro Murakami, Kenta Kobayashi, Yuko Fukata
    • Organizer
      10th Forum of Neuroscience (FENS)
    • Place of Presentation
      Bella Center, Copenhagen, Denmark
    • Year and Date
      2016-07-02
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Molecular mechanisms of PSD95 (de)palmitoylation2016

    • Author(s)
      Masaki Fukata
    • Organizer
      Invited Lecture at Medizinische Hochschule Hannover
    • Place of Presentation
      Hannover, Germany
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] Postsynaptic nanodomains regulated by local palmitoylation machinery2016

    • Author(s)
      Masaki Fukata
    • Organizer
      Invited Lecture at Deutsches Zentrum fur Neurodegenerative Erkrankungen (DZNE)
    • Place of Presentation
      Magdeburg, Germany
    • Related Report
      2016 Annual Research Report
    • Invited
  • [Presentation] The LGI1-ADAM22 protein complex in synaptic transmission and disorders2016

    • Author(s)
      Masaki Fukata
    • Organizer
      Brain protein aging and dementia control: International workshop 2016
    • Place of Presentation
      名古屋大学医学部鶴友会館、名古屋市、愛知県
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Book] メンブレントラフィック2016

    • Author(s)
      深田優子、横井紀彦、宮崎裕理、深田正紀
    • Publisher
      化学同人
    • Related Report
      2016 Annual Research Report
  • [Remarks] 自然科学研究機構 生理学研究所 生体膜研究部門ホームページ

    • URL

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

    • Related Report
      2017 Annual Research Report
  • [Remarks] シナプス蛋白質PSD-95の局在を調節する酵素の同定

    • URL

      http://www.nips.ac.jp/nips_research/2016/06/psd-95.html

    • Related Report
      2016 Annual Research Report
  • [Remarks] 生理学研究所 生体膜研究部門ホームページ

    • URL

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

    • Related Report
      2016 Annual Research Report

URL: 

Published: 2016-04-26   Modified: 2022-05-18  

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