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The mechanism of axon-dendrite logistics (selective trafficking)

Research Project

Project/Area Number 15K07056
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Cell biology
Research InstitutionYokohama City University

Principal Investigator

Ogura Ken-ichi  横浜市立大学, 医学部, 助教 (20326028)

Project Period (FY) 2015-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2015: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
KeywordsC. elegans / 軸索 / 樹状突起 / 選択的輸送 / 極性 / 選択的小胞輸送
Outline of Final Research Achievements

A neural cell contains one cell body, one axon (for output) and dendrites (for input). The structural and functional differences are constructed by axon-dendrite selective trafficking at the neural cell body. The axon-dendrite selective trafficking is quite important for neural function. However, the molecular mechanisms are poorly understood.
I found that UNC-51 (an evolutionally conserved ser/thr kinase) and its binding partner UNC-14 (a RUN domain protein) were required for axon specific trafficking of UNC-33/CRMP2 that is important for neural polarity.

Academic Significance and Societal Importance of the Research Achievements

神経細胞の軸索と樹状突起における選択的輸送機構は、ほとんどわかっていない。私はUNC-51およびその結合分子UNC-14が、神経細胞の極性形成因子UNC-33/CRMP2の軸索特異的輸送に重要であることを見出した。これは、学術的意義が大きい。
一方、UNC-51は、神経軸索の再生に必要であるとともに、ヒト相同分子ULK4は、統合失調症の原因遺伝子である。軸索再生機構には不明の点が多く、また、統合失調症の発症機構はほとんどわかっていない。本研究成果から、軸索再生、及び、統合失調症と物流との機能関連の発見、臨床応用への礎となることが期待される。これは、社会的意義が大きい。

Report

(5 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • 2015 Research-status Report
  • Research Products

    (6 results)

All 2018 2017 2016 2015

All Presentation (6 results) (of which Int'l Joint Research: 1 results)

  • [Presentation] C. elegansにおける軸索・樹状突起の極性形成および選択的輸送機構2018

    • Author(s)
      小倉顕一
    • Organizer
      第41回日本分子生物学会年会
    • Related Report
      2018 Annual Research Report
  • [Presentation] A conserved ser/thr kinase UNC-51 and its binding partner UNC-14 are required for axon-dendrite polarity in Caenorhabditis elegans.2017

    • Author(s)
      Ken-ichi Ogura
    • Organizer
      21st International C. elegans Conference
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] C. elegansのUNC-51(ser/thr kinase)とその結合分子UNC-14(RUN domain protein)は、UNC-33/CRMPの細胞内局在を制御することにより軸索・樹状突起の極性形成を制御する。2017

    • Author(s)
      小倉顕一
    • Organizer
      日本分子生物学会
    • Related Report
      2017 Research-status Report
  • [Presentation] C. elegansのUNC-51(autophagy related ser/thr kinase)とその結合分子UNC-14(RUN domain protein)、UNC-73(Rac GEF)は、軸索・樹状突起の極性形成および選択的輸送に必要である。2016

    • Author(s)
      小倉顕一
    • Organizer
      第39回日本分子生物学会年会
    • Place of Presentation
      パシフィコ横浜(神奈川県)
    • Year and Date
      2016-11-30
    • Related Report
      2016 Research-status Report
  • [Presentation] 線虫C. elegansにおいて、オートファジー関連キナーゼであるUNC-51とその結合分子は軸索と樹状突起における物流(選択的輸送)を制御する。2015

    • Author(s)
      小倉顕一、五嶋良郎
    • Organizer
      第38回日本分子生物学会
    • Place of Presentation
      神戸ポートアイランド(兵庫県神戸市)
    • Year and Date
      2015-12-01
    • Related Report
      2015 Research-status Report
  • [Presentation] A conserved ser/thr kinase UNC-51 and its binding partners are required for axon-dendrite logistics (selective trafficking) in Caenorhabditis elegans.2015

    • Author(s)
      Ken-ichi Ogura, Yoshio Goshima
    • Organizer
      C. elegans 2015 20th INTERNATIONAL MEETING
    • Place of Presentation
      UCLA, Los Angeles, U.S.A.
    • Year and Date
      2015-06-24
    • Related Report
      2015 Research-status Report

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Published: 2015-04-16   Modified: 2020-03-30  

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