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2010 Fiscal Year Final Research Report

Regulation of translation machinery and mRNA localization by PAR-aPKC complex

Research Project

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Project/Area Number 21770190
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeSingle-year Grants
Research Field Molecular biology
Research InstitutionYokohama City University

Principal Investigator

HAYASHI Kenji  Yokohama City University, 医学研究科, 博士研究員 (50512349)

Project Period (FY) 2009 – 2010
KeywordsPAR1b / MARK2 / Microtubule / Dendritic spine / +TIPs
Research Abstract

We revealed that PAR1b participates in the maintenance of mature dendritic spine morphology in mouse hippocampal neurons. PAR1b localized in the dendrites of mature neurons, and PAR1b knockdown cells exhibited decreased mushroom-like dendritic spines, as well as increased filopodia-like dendritic protrusions. We revealed that microtubule growth distance in dendrite region is decreased following PAR1b knockdown. In addition, reduced accumulation of GFP-p140Cap, an actin reorganizing protein, in dendritic protrusions was confirmed in PAR1b knockdown neurons. In conclusion, the present results suggested a novel function for PAR1b in the maintenance of mature dendritic spine morphology by regulating microtubule growth and the accumulation of p140Cap in dendritic spines.

  • Research Products

    (2 results)

All 2011 2010

All Presentation (2 results)

  • [Presentation] Maintenance of dendritic spine morphology by PAR1b through regulation of microtubule Dynamics2011

    • Author(s)
      林健二、鈴木厚、大野茂男
    • Organizer
      第63回日本細胞生物学会大会
    • Place of Presentation
      北海道大学クラーク会館
    • Year and Date
      20110600
  • [Presentation] Maintenance of dendritic spine morphology by PAR1b through regulation of microtubule Dynamics2010

    • Author(s)
      林健二、鈴木厚、大野茂男
    • Organizer
      第33回日本分子生物学会年会 第83回日本生化学会大会合同大会
    • Place of Presentation
      ポートアイランド
    • Year and Date
      20101200

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Published: 2012-02-13   Modified: 2016-04-21  

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