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2012 Fiscal Year Final Research Report

Long-Term Culture of Astrocytes modulates the Synaptic Machinery

Research Project

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Project/Area Number 23700476
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Neurophysiology and muscle physiology
Research InstitutionFukuoka University

Principal Investigator

KATSURABAYASHI Shutaro  福岡大学, 薬学部, 助教 (50435145)

Project Period (FY) 2011 – 2012
Keywordsアストロサイト / 老化 / シナプス伝達
Research Abstract

The astrocyte is a major glial cell type of the brain, and plays key roles in the formation, maturation, stabilization and elimination of synapses. Thus, changes in astrocyte condition and age can influence information processing at synapses. This study investigated the effects of prolonged culture on the ability of astrocytes to induce synapse formation and to modify synaptic transmission. By 9 weeks in culture, astrocytes exhibited characteristic of aging in vitro, and showed a smaller amount of release of the excitatory neurotransmitter glutamate. Given that the pool of readily releasable vesicles is also small at immature synapses, our results are consistent with astrocytic aging leading to retarded synapse maturation.

  • Research Products

    (6 results)

All 2012 2011 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results) Presentation (4 results) Remarks (1 results)

  • [Journal Article] Long-term culture of astrocytes attenuates the readily releasable pool of synaptic vesicles.2012

    • Author(s)
      Kawano H, Katsurabayashi S, Kakazu Y, Yamashita Y, Kubo N, Kubo M, Okuda H, Takasaki K, Kubota K, Mishima K, Fujiwara M, Harata NC, Iwasaki K.
    • Journal Title

      PLoS One.

      Volume: 7(10) Pages: e48034

    • DOI

      doi:10.1371/journal.pone.0048034

    • Peer Reviewed
  • [Presentation] 脳内環境を考慮したinvitro加齢モデルの作出とその応用2012

    • Author(s)
      桂林秀太郎
    • Organizer
      第14回七隈アルツハイマー病・パーキンソン病研究会
    • Place of Presentation
      福岡
    • Year and Date
      2012-04-28
  • [Presentation] 長期培養アストロサイトとシナプス機能2011

    • Author(s)
      桂林秀太郎
    • Organizer
      第2回九州エリア薬理・生理学若手研究会
    • Place of Presentation
      福岡
    • Year and Date
      2011-12-26
  • [Presentation] アストロサイト長期培養によるニューロンのサイレントシナプス発現2011

    • Author(s)
      桂林秀太郎
    • Organizer
      生理学研究所研究会シナプス伝達の概念志向型研究
    • Place of Presentation
      岡崎
    • Year and Date
      2011-12-05
  • [Presentation] アストロサイトの加齢によるサイレントシナプス発現2011

    • Author(s)
      桂林秀太郎
    • Organizer
      第13回ブレインサイエンス研究会
    • Place of Presentation
      熊本
    • Year and Date
      2011-05-28
  • [Remarks]

    • URL

      http://www.pha.fukuoka-u.ac.jp/user/ohyaku/web/

URL: 

Published: 2014-09-25  

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