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Molecular mechanism of synapse maturation and pathophysiology of epilepsy

Research Project

Project/Area Number 20H00459
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Review Section Medium-sized Section 43:Biology at molecular to cellular levels, and related fields
Research InstitutionNational Institute for Physiological Sciences

Principal Investigator

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

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥45,240,000 (Direct Cost: ¥34,800,000、Indirect Cost: ¥10,440,000)
Fiscal Year 2022: ¥14,040,000 (Direct Cost: ¥10,800,000、Indirect Cost: ¥3,240,000)
Fiscal Year 2021: ¥14,820,000 (Direct Cost: ¥11,400,000、Indirect Cost: ¥3,420,000)
Fiscal Year 2020: ¥16,380,000 (Direct Cost: ¥12,600,000、Indirect Cost: ¥3,780,000)
Keywordsシナプス / タンパク質 / 脂質 / 脳・神経 / ナノドメイン / ナノカラム / てんかん / 酵素 / パルミトイル化
Outline of Research at the Start

脳の生理と病態を理解するには、神経細胞間の情報伝達を担う“シナプス”の理解が必要不可欠である。シナプス伝達の効率は常に一定ではなく、外界刺激によって柔軟に変化し、これが記憶や学習などの脳高次機能の基盤となる。本研究では、申請者らが独自に見出した (1)パルミトイル化脂質修飾関連酵素と(2)分泌リガンド・受容体LGI1-ADAM22を起点として、シナプスの成熟機構とその破綻によるシナプス疾患の分子病態を解明する。

Outline of Final Research Achievements

To understand the physiology and pathology of the brain, it is essential to understand synapses, which are responsible for information transfer between neurons. Recently, many proteins involved in synapse formation have been reported, but the process by which immature synapses mature into functional synapses is not well understood. Here, we found that the LGI1-ADAM22-PSD-95 protein complex elaborately regulates synaptic transmission by aligning the nanodomains in the pre- and post-synapse. In addition, we found that disruption of the LGI1-ADAM22-PSD-95 pathway causes epileptic encephalopathy in humans and mice.

Academic Significance and Societal Importance of the Research Achievements

従来の光学顕微鏡や電子顕微鏡を用いた解析では、シナプス内部やシナプス間隙をまたぐ分子の相互配置や動的変化に迫ることは困難であった。本研究では、超解像イメージング法や脳疾患モデルを用いて、シナプス内部のタンパク質の配置メカニズムを明らかにした。また、シナプス疾患をシナプスの形態や数の異常という従来の観点を超えて、シナプス-ナノドメインの構造・機能的変容として捉えた点も意義深い。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Comments on the Screening Results   Annual Research Report
  • Research Products

    (49 results)

All 2023 2022 2021 2020 Other

All Int'l Joint Research (17 results) Journal Article (17 results) (of which Int'l Joint Research: 13 results,  Peer Reviewed: 15 results,  Open Access: 13 results) Presentation (8 results) (of which Int'l Joint Research: 2 results,  Invited: 6 results) Book (1 results) Remarks (6 results)

  • [Int'l Joint Research] UCL/The University of Edinburgh(英国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] University of Helsinki(フィンランド)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Erasmus University/Leiden University(オランダ)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] DZNE/Charite-Universitatsmedizin(ドイツ)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Charles University in Prague(チェコ)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] UCSF(米国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] UCL/The University of Edinburgh(英国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] DZNE/Charite-Universitatsmedizin(ドイツ)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Aarhus University(デンマーク)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Erasmus University/Leiden University(オランダ)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research]

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] UCSF/UCSD(米国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] DZNE(ドイツ)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] IST(オーストリア)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] UCL/The University of Edinburgh(英国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] University of Helsinki(フィンランド)

    • Related Report
      2020 Annual Research Report
  • [Journal Article] Anti-LGI4 antibody is a novel juxtaparanodal autoantibody for chronic inflammatory demyelinating polyneuropathy2023

    • Author(s)
      Zhang X, Kira J, Ogata H, Imamura T, Mitsuishi M, Fujii T, Kobayashi M, Kitagawa K, Namihira Y, Ohya Y, Maimaitijiang G, Yamasaki R, Fukata Y, Fukata M, Isobe N, Nakamura Y.
    • Journal Title

      Neurology Neuroimmunology and Neuroinflammation

      Volume: 10(2) Issue: 2 Pages: 1-13

    • DOI

      10.1212/nxi.0000000000200081

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] S-Palmitoylation of Tyrosinase at Cysteine500 Regulates Melanogenesis2023

    • Author(s)
      Niki Yoko、Adachi Naoko、Fukata Masaki、Fukata Yuko、Oku Shinichiro、Makino-Okamura Chieko、Takeuchi Seiji、Wakamatsu Kazumasa、Ito Shosuke、Declercq Lieve、Yarosh Daniel B.、Mammone Tomas、Nishigori Chikako、Saito Naoaki、Ueyama Takehiko
    • Journal Title

      Journal of Investigative Dermatology

      Volume: 143 Issue: 2 Pages: 317-327.e6

    • DOI

      10.1016/j.jid.2022.08.040

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] てんかん発症を抑制するためのLGI1-ADAM22タンパク質複合体の量的制御機構2023

    • Author(s)
      横井紀彦、深田優子、深田正紀
    • Journal Title

      生化学

      Volume: -

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Biallelic ADAM22 pathogenic variants cause progressive encephalopathy and infantile-onset refractory epilepsy2022

    • Author(s)
      van der Knoop M Marieke M*、Maroofian Reza*、Fukata Yuko*、van Ierland Yvette、Karimiani G Ehsan、Lehesjoki Anna-Elina、Muona Mikko、Paetau Anders、Miyazaki Yuri、Hirano Yoko、Selim Laila、-----32名-----、Striano Pasquale、Severino Mariasavina、Fukata Masaki#、Hilhorst-Hofstee Yvonne#、Houlden Henry#
    • Journal Title

      Brain

      Volume: - Issue: 7 Pages: 2301-2312

    • DOI

      10.1093/brain/awac116

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Palmitoylation of the small GTPase Cdc42 by DHHC5 modulates spine formation and gene transcription2022

    • Author(s)
      Wirth Alexander、Labus Josephine、Abdel Galil Dalia、Schill Yvonne、Schmidt Silke、Bunke Tania、Gorinski Nataliya、Yokoi Norihiko、Fukata Masaki、Ponimaskin Evgeni
    • Journal Title

      Journal of Biological Chemistry

      Volume: 298 Issue: 6 Pages: 102048-102048

    • DOI

      10.1016/j.jbc.2022.102048

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Insight into the function of a unique voltage-sensor protein (TMEM266) and its short form in mouse cerebellum2022

    • Author(s)
      Kawai T、Narita H、Konno K、Akter S、Andriani RT、Iwasaki H、Nishikawa S、Yokoi N、Fukata Y、Fukata M、Wiriyasermkul P、Kongpracha P、Nagamori S、Takao K、Miyakawa T、Abe M、Sakimura K、Watanabe M、Nakagawa A、Okamura Y
    • Journal Title

      Biochemical Journal

      Volume: 479 Issue: 11 Pages: 1127-1145

    • DOI

      10.1042/bcj20220033

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] MAGUKs are essential, but redundant, in long-term potentiation2021

    • Author(s)
      Chen Xiumin、Fukata Yuko、Fukata Masaki、Nicoll Roger A.
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 118 Issue: 28

    • DOI

      10.1073/pnas.2107585118

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Trans-synaptic LGI1-ADAM22?MAGUK in AMPA and NMDA receptor regulation2021

    • Author(s)
      Fukata Yuko、Hirano Yoko、Miyazaki Yuri、Yokoi Norihiko、Fukata Masaki
    • Journal Title

      Neuropharmacology

      Volume: 194 Pages: 108628-108628

    • DOI

      10.1016/j.neuropharm.2021.108628

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 14-3-3 proteins stabilize LGI1-ADAM22 levels to regulate seizure thresholds in mice2021

    • Author(s)
      Norihiko Yokoi, Yuko Fukata, Kei Okatsu, Atsushi Yamagata, Yan Liu , Makoto Sanbo, Yuri Miyazaki, Teppei Goto, Manabu Abe , Hidetoshi Kassai, Kenji Sakimura, Dies Meijer, Masumi Hirabayashi, Shuya Fukai, Masaki Fukata
    • Journal Title

      Cell Reports

      Volume: 37 Issue: 11 Pages: 110107-110107

    • DOI

      10.1016/j.celrep.2021.110107

    • NAID

      120007177780

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A novel red fluorescence dopamine biosensor selectively detects dopamine in the presence of norepinephrine in vitro2021

    • Author(s)
      Nakamoto Chihiro、Goto Yuhei、Tomizawa Yoko、Fukata Yuko、Fukata Masaki、Harpsoe Kasper、Gloriam David E.、Aoki Kazuhiro、Takeuchi Tomonori
    • Journal Title

      Molecular Brain

      Volume: 14 Issue: 1 Pages: 173-173

    • DOI

      10.1186/s13041-021-00882-8

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Encephalitis patient-derived monoclonal GABAa receptor antibodies cause epileptic seizures2021

    • Author(s)
      Kreye Jakob、Wright K Sukhvir、van Casteren Adriana、Stoffler Laura、Machule Marie-Luise、Reincke S Momsen、Nikolaus Marc、van Hoof Scott、Sanchez-Sendin Elisa、Homeyer A Marie、Cordero Gomez Cesar、Kornau Hans-Christian、-----12名-----、Wickel Jonathan、Geis Christian、Fukata Yuko、Fukata Masaki、Pruss Harald
    • Journal Title

      Journal of Experimental Medicine

      Volume: 218

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] LGI1-ADAM22-MAGUK configures transsynaptic nanoalignment for synaptic transmission and epilepsy prevention2021

    • Author(s)
      Fukata Yuko、Chen Xiumin、Chiken Satomi、Hirano Yoko、Yamagata Atsushi、Inahashi Hiroki、Sanbo Makoto、Sano Hiromi、Goto Teppei、Hirabayashi Masumi、Kornau Hans-Christian、Pruss Harald、Nambu Atsushi、Fukai Shuya、Nicoll Roger A.、Fukata Masaki
    • Journal Title

      Proceedings of the National Academy of Sciences

      Volume: 118 Issue: 3 Pages: 1-12

    • DOI

      10.1073/pnas.2022580118

    • NAID

      120006976050

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Canonical versus non-canonical transsynaptic signaling of neuroligin 3 tunes development of sociality in mice2021

    • Author(s)
      Yoshida T, Yamagata A, Imai A, Kim J, Izumi H, Nakashima S, Shiroshima T, Maeda A, Iwasawa-Okamoto S, Azechi K, Osaka F, Saitoh T, Maenaka K, Shimada T, Fukata Y, Fukata M, Matsumoto J, Nishijo H, Takao K, Tanaka S, Okabe S, Tabuchi K, Uemura T, Mishina M, Mori H & Fukai S
    • Journal Title

      Nature Communications

      Volume: 12(1) Issue: 1 Pages: 1848-1848

    • DOI

      10.1038/s41467-021-22059-6

    • NAID

      120006996978

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Encephalitis patient derived monoclonal GABAA receptor antibodies cause catatonia and epileptic seizures2021

    • Author(s)
      Kreye Jakob、Wright Sukhvir K.、van Casteren Adriana、Machule Marie-Luise、Reincke S. Momsen、Nikolaus Marc、Stoffler Laura、van Hoof Scott、Sanchez-Sendin Elisa、Kornau Hans-Christian、Kaindl Angela M.、Wilson Max A.、Greenhill Stuart、他5名、Geis Christian、Fukata Yuko、Fukata Masaki、Pruss Harald
    • Journal Title

      bioRxiv

      Volume: -

    • DOI

      10.1101/2021.01.28.428602

    • Related Report
      2020 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Journal Article] APEGS法によるタンパク質パルミトイル化修飾の定量2021

    • Author(s)
      深田正紀、横井紀彦、深田優子
    • Journal Title

      電気泳動

      Volume: 65

    • NAID

      130008072916

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Forelimb movements evoked by optogenetic stimulation of the macaque motor cortex2020

    • Author(s)
      Watanabe H, Sano H, Chiken S, Kobayashi K, Fukata Y, Fukata M, Mushiake H, Nambu A
    • Journal Title

      Nat Commun

      Volume: 11 Issue: 1 Pages: 3253-3253

    • DOI

      10.1038/s41467-020-16883-5

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A genetically encoded red fluorescence dopamine biosensor enables dual imaging of dopamine and norepinephrine2020

    • Author(s)
      Nakamoto Chihiro、Goto Yuhei、Tomizawa Yoko、Fukata Yuko、Fukata Masaki、Harpsoe Kasper、Gloriam David E.、Aoki Kazuhiro、Takeuchi Tomonori
    • Journal Title

      bioRxiv

      Volume: -

    • DOI

      10.1101/2020.05.25.115162

    • Related Report
      2020 Annual Research Report
    • Open Access / Int'l Joint Research
  • [Presentation] シナプスのナノ構築機構と病態2023

    • Author(s)
      深田優子、横井紀彦、宮﨑裕理、深田正紀
    • Organizer
      第128回日本解剖学会総会・全国学術集会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Function and regulation of ADAM22, a receptor for LGI1, in epileptic disorders2022

    • Author(s)
      Fukata M, Fukata Y
    • Organizer
      SYNABS & CONNECT-GENERATE Symposium 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 14-3-3 proteins stabilize LGI1-ADAM22 levels to prevent epilepsy in mice2022

    • Author(s)
      Yokoi N, Fukata Y, Okatsu K, Yamagata A, Liu Y, Sanbo M, Miyazaki Y, Goto T, Hirabayashi M, Fukai S, Fukata M
    • Organizer
      The 45th annual meeting of the Japan Neuroscience Society
    • Related Report
      2022 Annual Research Report
  • [Presentation] シナプス機能と脳の疾患に関する研究. 第 4 回 FUJITA ブレインサイエンスセミナー2022

    • Author(s)
      深田正紀
    • Organizer
      第 4 回 FUJITA ブレインサイエンスセミナー
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Proteomic characterization of ABHD17B, a depalmitoylating enzyme, in the mouse brain2022

    • Author(s)
      Egawa T, Hirata T, Yokoi N, Miyazaki Y, Sanbo M, Goto T, Inahashi H, Kobayashi K, Hirabayashi M, Fukata Y, Fukata M
    • Organizer
      第95回日本生化学大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Trans-synaptic LGI1-ADAM22-MAGUK protein complex in synaptic functions and disorders2021

    • Author(s)
      Fukata Masaki、Fukata Yuko
    • Organizer
      SYNABS Symposium (Germany, Virtual meeting)
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Acyl-PEGyl exchange gel-shift (APEGS) assay for palmitoylation quantification2020

    • Author(s)
      Fukata Masaki、Yokoi Norihiko、Fukata Yuko
    • Organizer
      第71回 日本電気泳動学会総会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] Synaptic function regulated by palmitate cycling on PSD-95 and trans-synaptic LGI1 and ADAM222020

    • Author(s)
      Fukata Masaki、Yuri Miyazaki、Yokoi Norihiko、Fukata Yuko
    • Organizer
      第43回日本分子生物学会年会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Book] 膜タンパク質工学ハンドブック2020

    • Author(s)
      平野瑶子、宮﨑裕理、横井紀彦、平田哲也、深田正紀、深田優子
    • Total Pages
      17
    • Publisher
      エヌ・ティー・エス
    • ISBN
      9784860435370
    • Related Report
      2020 Annual Research Report
  • [Remarks] 研究室ホームページ

    • URL

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

    • Related Report
      2022 Annual Research Report 2021 Annual Research Report 2020 Annual Research Report
  • [Remarks] 研究報告_生理研ホームページ

    • URL

      https://www.nips.ac.jp/nips_research/2022/04/_adam22_17.html

    • Related Report
      2022 Annual Research Report
  • [Remarks] プレスリリース 新たなてんかん治療戦略を提案

    • URL

      https://www.nips.ac.jp/release/2021/12/_adam22.html

    • Related Report
      2021 Annual Research Report
  • [Remarks] プレスリリース 新たなてんかん治療戦略を提案

    • URL

      https://www.amed.go.jp/news/release_20211215.html

    • Related Report
      2021 Annual Research Report
  • [Remarks] プレスリリース 新規赤色蛍光ドーパミンバイオセンサーの開発

    • URL

      https://www.nibb.ac.jp/press/2021/12/20.html

    • Related Report
      2021 Annual Research Report
  • [Remarks] プレスリリース:神経シナプス間の軸調整を担う分子群を発見―新たなてんかん病態を解明―

    • URL

      https://www.nips.ac.jp/release/2021/01/post_426.html

    • Related Report
      2020 Annual Research Report

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

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