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Functional roles of BRAG1 at the excitatory postsynapse

Research Project

Project/Area Number 26430040
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Nerve anatomy/Neuropathology
Research InstitutionKitasato University

Principal Investigator

Fukaya Masahiro  北里大学, 医学部, 講師 (10360900)

Project Period (FY) 2014-04-01 – 2017-03-31
Project Status Completed (Fiscal Year 2016)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2016: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2015: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2014: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
KeywordsArf6 / BRAG1 / シナプス / 興奮性シナプス / PSD / Af6
Outline of Final Research Achievements

In the present study, I focused on BRAG1, one of the excitatory postsynaptic molecules, which causes nonsyndromic mental retardation in human. To reveal the functional mechanisms of BRAG1 at postsynapse, BRAG1 knockout mice were generated. Using BRAG1 knockout mice, many neuronal and glial marker molecules were screened by immunoblot and immunohistochemical assays. Consequently, loss of BRAG1 was accompanied by upregulation of some glutamate receptor subunits in the hippocampus, and impairment of the passive avoidance task. These results suggest that BRAG1 plays important roles in the regulation of the glutamate receptor localization at excitatory post synapse and hippocampus-dependent memory.

Report

(4 results)
  • 2016 Annual Research Report   Final Research Report ( PDF )
  • 2015 Research-status Report
  • 2014 Research-status Report
  • Research Products

    (6 results)

All 2016 2015 2014

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Acknowledgement Compliant: 1 results) Presentation (5 results)

  • [Journal Article] Distinct subcellular localization of alternative splicing variants of EFA6D, a guanine nucleotide exchange factor for Arf6, in the mouse brain.2016

    • Author(s)
      Fukaya M, Ohata S, Hara Y, Tamaki H, Sakagami H.
    • Journal Title

      Journal of Comparative Neurology

      Volume: 477 Issue: 13 Pages: 868-873

    • DOI

      10.1002/cne.24048

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] シナプス後部におけるBRAG2-Arf6シグナル経路を介したAMPA受容体輸送調節機構2016

    • Author(s)
      深谷昌弘, 阪上洋行
    • Organizer
      日本解剖学会 第121回全国学術集会
    • Place of Presentation
      ビッグパレット福島 (郡山市)
    • Year and Date
      2016-03-28
    • Related Report
      2015 Research-status Report
  • [Presentation] 海馬興奮生シナプスにおけるBRAG2-Arf6シグナル経路を介したAMPA受容体輸送機構2015

    • Author(s)
      深谷昌弘, 阪上洋行
    • Organizer
      日本解剖学会関東支部 第103回学術集会
    • Place of Presentation
      慶応大学日吉キャンパス(川崎市)
    • Year and Date
      2015-11-07
    • Related Report
      2015 Research-status Report
  • [Presentation] BRAG2 regulates Arf6 activity and AMPAR endocytosis at postsynapses through the interaction with endophilin32015

    • Author(s)
      深谷昌弘, 阪上洋行
    • Organizer
      第38回日本神経科学大会
    • Place of Presentation
      神戸国際会議場
    • Year and Date
      2015-07-28
    • Related Report
      2015 Research-status Report
  • [Presentation] BRAG2c, a long C-terminal splice variant, interacts with endophilinIII to mediate AMPA receptor internalization2015

    • Author(s)
      深谷昌弘, 阪上洋行
    • Organizer
      第120回 日本解剖学会全国学術集会
    • Place of Presentation
      神戸国際会議場(兵庫・神戸)
    • Year and Date
      2015-03-21 – 2015-03-23
    • Related Report
      2014 Research-status Report
  • [Presentation] 海馬錐体細胞における低分子量Gタンパク質Arf6の細胞内局在解析2014

    • Author(s)
      深谷昌弘, 阪上洋行
    • Organizer
      第37回 日本神経科学大会
    • Place of Presentation
      パシフィコ横浜(神奈川・横浜)
    • Year and Date
      2014-09-11 – 2014-09-13
    • Related Report
      2014 Research-status Report

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Published: 2014-04-04   Modified: 2018-03-22  

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