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Molecular genetic analyses of the mechanisms of neural circuit fine branching in the learning and memory centers of Drosophila

Research Project

Project/Area Number 24570229
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Developmental biology
Research InstitutionUniversity of Tsukuba

Principal Investigator

FURUKUBO-TOKUNAGA Katsuo  筑波大学, 生命環境系, 教授 (00272154)

Project Period (FY) 2012-04-01 – 2015-03-31
Project Status Completed (Fiscal Year 2014)
Budget Amount *help
¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2014: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2013: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2012: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywordsショウジョウバエ / 脳 / 学習・記憶 / 神経回路 / 精神疾患 / 発生
Outline of Final Research Achievements

The maturation and adaptation of the neural circuits in the brain is achieved via multiple steps involving axonal terminal branching, pruning of excess dendrites, and control of synaptogenesis. In this study, we utilized fruit flies (Drosophila melanogaster) to elucidate the molecular mechanisms that control the functional maturation and maximum tuning of neurocircuits in the brain, and analyzed fine branching patterns at the axonal termini and synapse formation. By the use of genetic screening, we have identified several key molecules that control these processes. Moreover, to extend this study to higher order brain functions, we have developed a novel technique that enables artificial induction of olfactory memory in living larvae. Our study has disclosed intriguing molecular genetic mechanisms of functional tuning of the neural circuits, and identified genes that are conserved in humans as risk factors for diverse mental disorders.

Report

(4 results)
  • 2014 Annual Research Report   Final Research Report ( PDF )
  • 2013 Research-status Report
  • 2012 Research-status Report
  • Research Products

    (16 results)

All 2015 2014 2013 2012 Other

All Journal Article (1 results) (of which Peer Reviewed: 1 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (12 results) (of which Invited: 2 results) Remarks (3 results)

  • [Journal Article] Induction of Associative Olfactory Memory by Targeted Activation of Single Olfactory Neurons in Drosophila Larvae2014

    • Author(s)
      Honda, T., Lee, C.-Y., Yoshida-Kashikawa, M. Honjo, K., and Furukubo-Tokunaga, K.
    • Journal Title

      Scientific Reports

      Volume: 4 Issue: 1 Pages: 4798-4798

    • DOI

      10.1038/srep04798

    • Related Report
      2014 Annual Research Report
    • Peer Reviewed / Open Access / Acknowledgement Compliant
  • [Presentation] Genetical Interactions of Autism and Schizophrenia Risk Factor Genes in Glutamatergic Synaptogenesis in Fruit Flies.2015

    • Author(s)
      21.Furukubo-Tokunaga, K.
    • Organizer
      Biozentrum/Pharmazentrum Conference on Neurobiology,
    • Place of Presentation
      Basel, Switzerland
    • Year and Date
      2015-01-22 – 2015-01-23
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] Induction of Associative Olfactory Memory by Targeted Activation of the Memory Circuits in Drosophila Larvae.2014

    • Author(s)
      Honda, T., Yoshida-Kashikawa, M., and Furukubo-Tokunaga, K.
    • Organizer
      Society for Neuroscience Annual Meeting
    • Place of Presentation
      San Diego, U. S. A.
    • Year and Date
      2014-11-15 – 2014-11-19
    • Related Report
      2014 Annual Research Report 2013 Research-status Report
  • [Presentation] Genetical Interactions of Autism and Schizophrenia Risk Factor Genes in Glutamatergic Synaptogenesis in Fruit Flies2014

    • Author(s)
      Kurita, K., Pandey, H., Arai, Y., Yoshimura, Y., and Furukubo-Tokunaga, K.
    • Organizer
      European Conference on Neurobiology of Drosophila,
    • Place of Presentation
      Crete, Greece
    • Year and Date
      2014-10-05 – 2014-10-09
    • Related Report
      2014 Annual Research Report
  • [Presentation] Induction of Associative Olfactory Memory by Targeted Activation of the Memory Circuits in Drosophila Larvae.2014

    • Author(s)
      Honda, T., Lee, C.-Y., and Furukubo-Tokunaga, K.
    • Organizer
      Janelia Conference: Learning and Memory, a Synthesis of Bees and Flies
    • Place of Presentation
      Ashburn, U. S. A.
    • Year and Date
      2014-09-21 – 2014-09-24
    • Related Report
      2014 Annual Research Report
    • Invited
  • [Presentation] DISC1 genetically interacts with a mental retardation gene in glutamatergic synaptogenesis in Drosophila.2014

    • Author(s)
      Kazuki Kurita, Daisuke Tanaka, Yuko Arai, Katsuo Furukubo-Tokunaga
    • Organizer
      日本神経科学大会
    • Place of Presentation
      横浜、パシフィコ横浜
    • Year and Date
      2014-09-11 – 2014-09-13
    • Related Report
      2014 Annual Research Report
  • [Presentation] Genetical interaction of DISC1 and autism spectrum disorder genes in fruit fly2014

    • Author(s)
      Pandey Himani, Kazuki Kurita, Yuko Yoshimura, and Katsuo Furukubo-Tokunaga
    • Organizer
      日本神経科学大会
    • Place of Presentation
      横浜市、パシフィコ横浜
    • Year and Date
      2014-09-11 – 2014-09-13
    • Related Report
      2014 Annual Research Report
  • [Presentation] Induction of Associative Olfactory Memory by Targeted Activation of the Memory Circuits in Drosophila Larvae.2014

    • Author(s)
      Honda, T., Lee, C.-Y., and Furukubo-Tokunaga, K
    • Organizer
      Cold Spring Harbor Asia Conference: Neural Circuit Basis of Bahvior and its Disorders
    • Place of Presentation
      Suzhou, China
    • Year and Date
      2014-05-12 – 2014-05-16
    • Related Report
      2014 Annual Research Report
  • [Presentation] Induction of Associative Olfactory Memory by Targeted Activation of the Memory Circuits in Drosophila Larvae2014

    • Author(s)
      Lee, C.-Y., Honda, T., and Furukubo-Tokunaga, K.
    • Organizer
      Neurobiology Seminar. Department of Genetics, University of Cambridge.
    • Place of Presentation
      Cambridge, UK
    • Year and Date
      2014-04-28
    • Related Report
      2014 Annual Research Report
  • [Presentation] Modeling Schizophrenia in Flies: Direct Expression of DISC1 Suppresses Neural Development in Drosophila.2013

    • Author(s)
      Kurita, K., Tanaka, D., Pandey, H., Arai, Y., Ikejiri, K., Honda, T., and Furukubo-Tokunaga, K.
    • Organizer
      Asia Pacific Drosophila Research Conference
    • Place of Presentation
      Seoul, Korea
    • Related Report
      2013 Research-status Report
  • [Presentation] Modeling Schizophrenia in Flies: Direct Expression of DISC1, Alters Sleep Homeostasis and Impairs Associative Learning in Drosophila2012

    • Author(s)
      Kurita, K., Tanaka, D., Pandey, H., Takayama, K., Ando, T., Ando, M., Honjo, K., Mochizuki, H., Sawa, A., and Furukubo-Tokunaga, K.
    • Organizer
      XIV European Drosophila Neurobiology Conference
    • Place of Presentation
      Padova, Italy
    • Related Report
      2012 Research-status Report
  • [Presentation] Optogenetic and Thermogenetic Activation of Memory Circuit in Drosophila Larvae2012

    • Author(s)
      Honda, T., and Furukubo-Tokunaga, K.
    • Organizer
      5th Japan China Korea Graduate Student Forum
    • Place of Presentation
      筑波大学
    • Related Report
      2012 Research-status Report
  • [Presentation] Direct Expression of a Schizophrenia Susceptibility Gene, DISC1, Suppresses Neural development in Drosophila2012

    • Author(s)
      Kurita, K., Tanaka, D., Honda, T., Pandey, H., Arai, Y., Ikejiri, K., and Furukubo-Tokunaga, K.
    • Organizer
      5th Japan China Korea Graduate Student Forum
    • Place of Presentation
      筑波大学
    • Related Report
      2012 Research-status Report
  • [Remarks] Furukubo-Tokunaga Laboratory

    • URL

      http://www.biol.tsukuba.ac.jp/~tokunaga/welcome.html

    • Related Report
      2014 Annual Research Report
  • [Remarks] 筑波大学生命環境系古久保 - 徳永研究室

    • URL

      http://www.biol.tsukuba.ac.jp/~tokunaga/welcome.html

    • Related Report
      2013 Research-status Report
  • [Remarks] Furukubo-Tokunaga Lab

    • URL

      http://www.biol.tsukuba.ac.jp/~tokunaga/Furukubo-Tokunaga_Lab/Preface.html

    • Related Report
      2012 Research-status Report

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Published: 2013-05-31   Modified: 2019-07-29  

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