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The role of microglia in ASDs.

Research Project

Project/Area Number 26460094
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Pharmacology in pharmacy
Research InstitutionThe University of Tokyo

Principal Investigator

Koyama Ryuta  東京大学, 大学院薬学系研究科(薬学部), 准教授 (90431890)

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: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2015: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2014: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywordsマイクログリア / シナプス / 自閉症 / 海馬 / シナプス刈り込み / シナポトーシス / カスパーゼ / 培養切片 / 神経活動
Outline of Final Research Achievements

Selective elimination of inappropriate synapses is fundamental to the refinement of neural circuits. Deficits in synapse elimination are suggested in autism spectrum disorders (ASDs). Here we investigated whether and how the deficits in synapse elimination in the hippocampus are involved in the pathogenesis of ASDs. We found that the deficits in microglia-mediated synapse elimination induce excess synaptic connections in the dentate gyrus-CA3 neural circuits in ASDs. Thus, we propose that the regulation of microglial activity is a key to suppress the development of ASDs.

Report

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

    (22 results)

All 2017 2016 2015 2014

All Journal Article (5 results) (of which Peer Reviewed: 5 results,  Acknowledgement Compliant: 5 results) Presentation (16 results) Book (1 results)

  • [Journal Article] Microglia engulf viable newborn cells in the epileptic dentate gyrus.2016

    • Author(s)
      Luo C, Koyama R, Ikegaya Y.
    • Journal Title

      Glia

      Volume: 64 Issue: 9 Pages: 1508-1517

    • DOI

      10.1002/glia.23018

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Severity of kainic acid-induced seizures is not aggravated in the maternal immune activation mouse model of gestational poly(I:C) exposure.2016

    • Author(s)
      Andoh M, Koyama R, Ikegaya Y.
    • Journal Title

      Journal of Autism and Epilepsy

      Volume: 1 Pages: 1013-1013

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Depth and time-dependent heterogeneity of microglia in mouse hippocampal slice cultures.2016

    • Author(s)
      Kasahara Y, Koyama R, Ikegaya Y.
    • Journal Title

      Neuroscience Research

      Volume: 111 Pages: 64-69

    • DOI

      10.1016/j.neures.2016.05.001

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Microglia and neurogenesis in the epileptic dentate gyrus.2016

    • Author(s)
      Luo C, Ikegaya Y, Koyama R
    • Journal Title

      Neurogenesis

      Volume: 3

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Journal Article] Dentate Circuitry as a Model to Study Epileptogenesis2016

    • Author(s)
      Koyama R.
    • Journal Title

      Biological and Pharmaceutical Bulletin

      Volume: 39 Issue: 6 Pages: 891-896

    • DOI

      10.1248/bpb.b16-00125

    • NAID

      130005155121

    • ISSN
      0918-6158, 1347-5215
    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Acknowledgement Compliant
  • [Presentation] 熱性けいれんとてんかん発症の分子細胞生物学的リンク2017

    • Author(s)
      小山隆太、池谷裕二
    • Organizer
      第137回日本薬学会
    • Place of Presentation
      仙台国際センター(宮城県 仙台市)
    • Related Report
      2016 Annual Research Report
  • [Presentation] Microglia disrupt synapse E/I balance in epilepsy.2017

    • Author(s)
      Koyama R
    • Organizer
      The 5th RIEC International Symposium on Brain Functions and Brain Computer
    • Place of Presentation
      東北大学(宮城県 仙台市)
    • Related Report
      2016 Annual Research Report
  • [Presentation] 自閉症における神経回路形成へのマイクログリアの関与2016

    • Author(s)
      小山隆太
    • Organizer
      第121回日本解剖学会
    • Place of Presentation
      福島県・郡山市・ビッグパレットふくしま
    • Year and Date
      2016-03-30
    • Related Report
      2015 Research-status Report
  • [Presentation] 自閉症におけるマイクログリア依存的なシナプス除去の不全2016

    • Author(s)
      森下皓平、小山隆太、池谷裕二
    • Organizer
      第89回日本薬理学会
    • Place of Presentation
      神奈川県・横浜市・パシフィコ横浜
    • Year and Date
      2016-03-09
    • Related Report
      2015 Research-status Report
  • [Presentation] 熱性けいれんとミクログリア2016

    • Author(s)
      小山隆太
    • Organizer
      第50回日本てんかん学会
    • Place of Presentation
      グランシップ(静岡県 静岡市)
    • Related Report
      2016 Annual Research Report
  • [Presentation] てんかんとグリア細胞2016

    • Author(s)
      小山隆太、池谷裕二
    • Organizer
      生体機能と創薬シンポジウム2016
    • Place of Presentation
      東北大学(宮城県 仙台市)
    • Related Report
      2016 Annual Research Report
  • [Presentation] 温度刺激によるマイクログリア活性化のてんかんにおける役割2016

    • Author(s)
      小山隆太、池谷裕二
    • Organizer
      第39回日本神経科学会
    • Place of Presentation
      パシフィコ横浜(神奈川県 横浜市)
    • Related Report
      2016 Annual Research Report
  • [Presentation] Fever activates microglia to engulf inhibitory synapses in epilepsy.2016

    • Author(s)
      Koyama R
    • Organizer
      Keystone Symposia
    • Place of Presentation
      Keystone Resort (Keystone, Colorado, USA)
    • Related Report
      2016 Annual Research Report
  • [Presentation] Possible role of microglia in the pathogenesis of autism spectrum disorders2015

    • Author(s)
      小山隆太
    • Organizer
      第20回グリア研究会
    • Place of Presentation
      愛知県・名古屋市・名古屋市立大学
    • Year and Date
      2015-12-05
    • Related Report
      2015 Research-status Report
  • [Presentation] 海馬神経回路の形成におけるマイクログリアの関与と自閉症2015

    • Author(s)
      小山隆太
    • Organizer
      第38回日本神経科学大会
    • Place of Presentation
      兵庫県・神戸市・神戸国際会議場
    • Year and Date
      2015-07-30
    • Related Report
      2015 Research-status Report
  • [Presentation] 海馬神経回路の形成におけるマイクログリアの関与と自閉症2015

    • Author(s)
      小山隆太、柴田和輝、森下皓平、池谷裕二
    • Organizer
      第38回日本神経科学会
    • Place of Presentation
      神戸
    • Year and Date
      2015-07-28 – 2015-07-30
    • Related Report
      2014 Research-status Report
  • [Presentation] 母体免疫活性化によるマイクログリア依存的な神経回路変性と自閉スペクトラム症2015

    • Author(s)
      柴田和輝、小山隆太、森下皓平、池谷裕二
    • Organizer
      第132回日本薬理学会関東部会
    • Place of Presentation
      千葉県・浦安市・明海大学
    • Year and Date
      2015-07-04
    • Related Report
      2015 Research-status Report
  • [Presentation] Hippocampal network formation in mouse model of autism spectrum disorders.2015

    • Author(s)
      小山隆太、柴田和輝、森下皓平、池谷裕二
    • Organizer
      第57回日本小児神経学会
    • Place of Presentation
      大阪府・大阪市・帝国ホテル
    • Year and Date
      2015-05-28
    • Related Report
      2015 Research-status Report
  • [Presentation] ASD モデルマウスにおける海馬神経回路の変性とマイクログリアを介した再編成2015

    • Author(s)
      小山隆太
    • Organizer
      第1回生物学的自閉症研究会
    • Place of Presentation
      東京
    • Year and Date
      2015-03-14
    • Related Report
      2014 Research-status Report
  • [Presentation] 自閉症における海馬神経回路形成へのマイクログリアの関与2015

    • Author(s)
      小山隆太、柴田和輝、森下皓平、池谷裕二
    • Organizer
      第2回包括的神経グリア研究会
    • Place of Presentation
      名古屋
    • Year and Date
      2015-01-10
    • Related Report
      2014 Research-status Report
  • [Presentation] 自閉症モデルマウスにおける海馬苔状線維シナプス競合の不全2014

    • Author(s)
      柴田和輝、小山隆太、森下皓平、池谷裕二
    • Organizer
      第23回海馬と高次脳機能学会
    • Place of Presentation
      金沢
    • Year and Date
      2014-10-11
    • Related Report
      2014 Research-status Report
  • [Book] 細胞工学2015

    • Author(s)
      小山隆太
    • Total Pages
      4
    • Publisher
      秀潤社
    • Related Report
      2014 Research-status Report

URL: 

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

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