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2012 Fiscal Year Final Research Report

Alterations of proteolytic processing of synaptic adhesion molecules in Alzheimer disease

Research Project

  • PDF
Project/Area Number 24659028
Research Category

Grant-in-Aid for Challenging Exploratory Research

Allocation TypeMulti-year Fund
Research Field Biological pharmacy
Research InstitutionThe University of Tokyo

Principal Investigator

TOMITA Taisuke  東京大学, 大学院・薬学系研究科, 准教授 (30292957)

Project Period (FY) 2012
Keywords神経細胞 / シナプス / 接着分子
Research Abstract

In brain, each single neuron is connected to other neurons via synapses. Synapses can change their strength in response to neuronal activity, and synaptic adhesion molecules are implicated in the synapse plasticity. However, the metabolism of the synaptic adhesion molecules remains unknown. In the research, we found that neuroligin 1, which is associated with autism spectrum disorder, is sequentially processed by two proteases. This processing is modulated by synaptic activity and negatively regulates synapse formation in vivo.

  • Research Products

    (13 results)

All 2013 2012 Other

All Journal Article (6 results) Presentation (4 results) Book (2 results) Remarks (1 results)

  • [Journal Article] Structural biology of presenilins and signal peptide peptidases2013

    • Author(s)
      To mita T, Iwatsubo T
    • Journal Title

      J Biol Chem

      Volume: 288(21) Pages: 14673-14680

    • DOI

      doi:10.1074/jbc.R113.463281

  • [Journal Article] FTY720/Fingolimod, a sphingosine analogue, reduces amyloid-〓 production in neurons2013

    • Author(s)
      Takasugi N, Sasaki T, Ebinuma I, Osawa S, Isshiki H, Takeo K, Tomita T, Iwatsubo T
    • Journal Title

      PloS ONE

      Volume: 8(5) Pages: e64050

    • DOI

      doi:10.1371/journal.pone.0064050.

  • [Journal Article] Effect of helical conformation and side-chain structure on 〓-secretase inhibition by 〓-peptide foldamers: Insight into substrate recognition.2013

    • Author(s)
      Imamura Y, Umezawa N, Osawa S, Shimada N, Higo T, Yokoshima S, Fukuyama T, Iwatsubo T, Kato N, To mita T, Higuchi T
    • Journal Title

      J Med Chem

      Volume: 56(4) Pages: 1443-1454

    • DOI

      doi:10.1021/jm301306c

  • [Journal Article] Inhibition of 〓-secretase activity by a monoclonal antibody against the extracellular hydrophilic loop of2013

    • Author(s)
      Takagi-Niidome S, Osawa S, Tomita T, Iwatsubo T
    • Journal Title

      Biochemistry

      Volume: 52(1) Pages: 61-69

    • DOI

      doi:10.1021/bi301252r

  • [Journal Article] Activity-dependent Cleavage of Neuroligin 12012

    • Author(s)
      Suzuki K, Hayashi Y, Nakahara S, Kumazaki H, Prox J, Horiuchi K, Zeng M, Tanimura S, Nishiyama Y, Osawa S, Sehara-Fujisawa A, Saftig P, Yokoshima S, Fukuyama T, Matsuki N,Koyama R, Tomita T, Iwatsubo T
    • Journal Title

      Neuron

      Volume: 76(2) Pages: 410-422

    • DOI

      doi:10.1016/j.neuron.2012.10.003

  • [Journal Article] Contribution of〓-secretase cofactors to the formation of catalytic pore of presenilin 12012

    • Author(s)
      Takeo K, Watanabe N, Tomita T, Iwatsubo T
    • Journal Title

      J Biol Chem

      Volume: 287(31) Pages: 25834-25843

    • DOI

      doi:10.1074/jbc.M111.336347

  • [Presentation] セクレターゼ活性の制御とシナプス機能の分子連関2013

    • Author(s)
      富田泰輔
    • Organizer
      日本薬学会133年会
    • Place of Presentation
      横浜
    • Year and Date
      2013-03-28
  • [Presentation] Activity-dependent proteolytic cleavage of Neuroligin 12012

    • Author(s)
      Taisuke Tomita, Kunimichi Suzuki, Takeshi Iwatsubo
    • Organizer
      The 35th Annual Meeting of the Molecular Biology Society of Japan
    • Place of Presentation
      Fukuoka, Japan
    • Year and Date
      2012-12-13
  • [Presentation] gamma-secretase活性中心サブユニットPresenilin1の第4膜貫通領域の構造解析2012

    • Author(s)
      富永綾、富田泰輔、岩坪威
    • Organizer
      第31回日本認知症学会学術集会
    • Place of Presentation
      つくば
    • Year and Date
      2012-10-26
  • [Presentation] The alpha-helical structure of the hydrophilic loop 1 of presenilin 1 contributes to the formation of the substrate binding site2012

    • Author(s)
      Taisuke Tomita
    • Organizer
      Neuroscience 2012
    • Place of Presentation
      New Orleans, USA
    • Year and Date
      2012-10-13
  • [Book] 自閉症に関連する タンパク質 Neuroligin の神経活動に依 存的な代謝はニューロンのシナプス形 成を制御している ライフサイエンス 新着論文レビュー2012

    • Author(s)
      富田泰輔、鈴木邦道
  • [Book] シナプス接着分子neuroligin-1の神経活動依存的なタンパク質切断2012

    • Author(s)
      鈴木邦道、富田泰輔、岩坪威
    • Total Pages
      419-422
    • Publisher
      実験医学vol31
  • [Remarks]

    • URL

      http://www.f.u-tokyo.ac.jp/~neuropsc/entranceja2.html

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Published: 2014-09-25   Modified: 2015-11-24  

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