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Molecular and cellular basis for dendritic development and maintenance

Research Project

Project/Area Number 16H02504
Research Category

Grant-in-Aid for Scientific Research (A)

Allocation TypeSingle-year Grants
Section一般
Research Field Developmental biology
Research InstitutionThe University of Tokyo

Principal Investigator

Emoto Kazuo  東京大学, 大学院理学系研究科(理学部), 教授 (80300953)

Co-Investigator(Kenkyū-buntansha) 冨樫 和也  東京大学, 大学院理学系研究科(理学部), 助教 (40450613)
木瀬 孔明  東京大学, 大学院理学系研究科(理学部), 特任助教 (70769611)
古泉 博之  東京大学, 大学院理学系研究科(理学部), 助教 (10334335)
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥43,290,000 (Direct Cost: ¥33,300,000、Indirect Cost: ¥9,990,000)
Fiscal Year 2018: ¥12,740,000 (Direct Cost: ¥9,800,000、Indirect Cost: ¥2,940,000)
Fiscal Year 2017: ¥12,740,000 (Direct Cost: ¥9,800,000、Indirect Cost: ¥2,940,000)
Fiscal Year 2016: ¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Keywordsショウジョウバエ / 樹状突起 / 受容領域 / タイリング / 感覚ニューロン / 軸索 / 空間配置 / シナプス / 細胞内シグナル伝達 / 受容体 / 時空間制御 / 神経回路 / 老化 / 自己組織化 / 維持 / リン酸化酵素
Outline of Final Research Achievements

Drosophila sensory neurons cover body wall an a complete but non-redundant fashion. This tiling structure of dendritic field organization is previously reported in retinal ganglion cells in mammalian retina more than 20 years ago, but underlying molecular and cellular mechanisms remain elusive. The tiling structure in Drosophila sensory neurons is determined in part by repulsive interactions between dendritic branches, and we have identified several signaling molecules that mediate the repulsive interactions. In addition, we currently found that Wnt5 from particular epithelial cells, Sternites, provides a spatial cue that define the ventral boundary of the dendritic fields. Thus, the dendritic fields of Drosophila sensory neurons are defined by two distinct mechanisms, repulsive interactions between dendritic branches and spatial cues from guidance cells.

Academic Significance and Societal Importance of the Research Achievements

自閉症患者の脳では、特定ニューロンの受容領域の形成異常が頻繁に報告されていることからも、脳内でニューロンが正確な空間に固有の受容領域を形成することは、脳神経回路形成において必須事項であると考えられるが、発生発達期の脳において、ニューロンが3D受容領域を形成する仕組みは未だほとんど理解されていない。本研究は、機能的な脳神経回路形成メカニズムを理解する上で重要な情報を提供するのみならず、自閉症などの脳神経疾患の発症メカニズムの理解に貢献することが期待される。

Report

(4 results)
  • 2019 Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • 2016 Annual Research Report
  • Research Products

    (28 results)

All 2019 2018 2017 Other

All Int'l Joint Research (2 results) Journal Article (5 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 3 results,  Open Access: 1 results,  Acknowledgement Compliant: 1 results) Presentation (21 results) (of which Int'l Joint Research: 5 results,  Invited: 4 results)

  • [Int'l Joint Research] カリフォルニア大学/スクリプス研究所/ワシントン大学(米国)

    • Related Report
      2016 Annual Research Report
  • [Int'l Joint Research] ハンブルグ大学(ドイツ)

    • Related Report
      2016 Annual Research Report
  • [Journal Article] 神経回路の除去と再生の分子細胞基盤2019

    • Author(s)
      中浜涼太・増岡宏哉・長谷川恵理・冨樫和也・榎本和生
    • Journal Title

      生体の科学

      Volume: 70 Pages: 14-18

    • Related Report
      2018 Annual Research Report
  • [Journal Article] 内的状態による行動選択の制御2019

    • Author(s)
      辻真人・中溝真未・榎本和生
    • Journal Title

      生体の科学

      Volume: 70 Pages: 48-52

    • Related Report
      2018 Annual Research Report
  • [Journal Article] Prior activity of olfactory receptor neurons is required for proper sensory processing and behavior in Drosophila larvae.2018

    • Author(s)
      Utashiro N, Williams CR, Parrish JZ, Emoto K.
    • Journal Title

      Sci Rep

      Volume: 5 Issue: 1 Pages: 8580-8580

    • DOI

      10.1038/s41598-018-26825-3

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Neural circuitry that evokes escape behavior in response to nociceptive stimuli in Drosophila larvae.2017

    • Author(s)
      Yoshino J, Morikawa R, Hasegawa E, Emoto K
    • Journal Title

      Curr Biol

      Volume: 27 Issue: 16 Pages: 2499-2504

    • DOI

      10.1016/j.cub.2017.06.068

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed
  • [Journal Article] DCLK1 phosphorylates the microtubule-associate protein MAP7D1 to promote axonal elongation in cortical neurons.2017

    • Author(s)
      Koizumi H, Fujioka H, Togashi K, Thompson J, Yate J, Gleeson J and Emoto K
    • Journal Title

      Developmental Neurobiology

      Volume: 77 Issue: 4 Pages: 1-13

    • DOI

      10.1002/dneu.22428

    • Related Report
      2016 Annual Research Report
    • Peer Reviewed / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] Neuropeptidergic regulation of negative valence and sensory response2019

    • Author(s)
      Masato Tsuji, Michihiko Sagara, Kazuo Emoto,
    • Organizer
      第42回日本神経科学大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Neural circuitry underlying backward escape behavior upon noxious light irradiation in Drosophila larvae2019

    • Author(s)
      Natsuko Omamiuda-Ishikawa, Moeka Sakai, Kazuo Emoto
    • Organizer
      第42回日本神経科学大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Circadian Regulation of Sensory Gating in Mouse Olfactory System2019

    • Author(s)
      Shunsuke Takeuchi, Kazuya Togashi, Koudai Fujishima, Kimiko Shimizu, Yoshitaka Fukada, Kazuo Emoto
    • Organizer
      日本動物学会第90回 大阪大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Temporal Regulation of escape behavior in Drosophila larvae2019

    • Author(s)
      Mami Nakamizo, Jiro Yoshino, Shu Kondo, Kazuo Emoto
    • Organizer
      日本動物学会 第90回 大阪大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 味覚嗜好性神経基盤の解析2019

    • Author(s)
      酒井萌花、大豆生田石川夏子、榎本和生
    • Organizer
      日本動物学会 第90回 大阪大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] ショウジョウバエ感覚ニューロンにおける軸索再編成メカニズム2019

    • Author(s)
      德光和波、長谷川恵理、榎本和生,
    • Organizer
      日本動物学会 第90回 大阪大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] ショウジョウバエ表皮感覚ニューロンの樹状突起刈り込みを制御するCa2-振動機構の解明2019

    • Author(s)
      栁学理、長谷川恵理、榎本和生,
    • Organizer
      日本動物学会 第90回 大阪大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Elucidation of Synapse Pruning Mechanism Supporting Brain Development Using Mathematical Model2019

    • Author(s)
      Hiroya Masuoka, Kantaro Fujiwara, Kazuo Emoto
    • Organizer
      NOLTA 2019
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 中脳ドーパミン作動性ニューロンの誕生時期と投射先の連関解析2019

    • Author(s)
      奥山圭、冨樫和也、榎本和生,
    • Organizer
      日本動物学会 第90回 大阪大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 神経応答の概日変動がにおいの嗜好性により異なるメカニズム2019

    • Author(s)
      藤島航大、竹内俊祐、冨樫和也、清水貴美子、深田吉孝、榎本和生
    • Organizer
      日本動物学会 第90回 大阪大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 高効率な逆行性標識ウイルスの開発2019

    • Author(s)
      中浜諒大、冨樫和也、榎本和生
    • Organizer
      日本動物学会 第90回 大阪大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Temporal Regulation of escape behavior in Drosophila larvae2019

    • Author(s)
      Mami Nakamizo, Jiro Yoshino, Shu Kondo, Kazuo Emoto,
    • Organizer
      第42回日本神経科学大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Cellular and molecular mechanisms of neurite remodeling in Drosophila2019

    • Author(s)
      Eri Hasegawa, Nagomi Tokumitsu, Satoyoshi Yanagi, Rei K. Morikawa, Claire R. Williams, Jay Z. Parrish, Kazuo Emoto
    • Organizer
      第42回日本神経科学大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Neural circuitry underlying backward escape behavior upon noxious light irradiation in Drosophila larvae2019

    • Author(s)
      Natsuko Omamiuda-Ishikawa, Moeka Sakai, Kazuo Emoto
    • Organizer
      東京大学生命科学シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] Circadian Regulation of Mouse Olfactory System2019

    • Author(s)
      竹内俊祐、藤島航大、冨樫和也、清水貴美子、深田吉孝、榎本和生
    • Organizer
      第26回 時間生物学術大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Elucidation of synaptic pruning mechanism supporting cerebellar motor learning2019

    • Author(s)
      Hiroya Masuoka, Kantaro Fujiwara, Kazuo Emoto,
    • Organizer
      第29回日本神経回路学会全国大会
    • Related Report
      2018 Annual Research Report
  • [Presentation] 高効率逆行性標識ウイルスの開発研究2019

    • Author(s)
      中浜諒大、冨樫和也、榎本和生
    • Organizer
      東京大学生命科学シンポジウム
    • Related Report
      2018 Annual Research Report
  • [Presentation] Calcium control of neural development and remodeling2018

    • Author(s)
      Kazuo Emoto
    • Organizer
      CSHA Neuroscience Meeting
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Calcium signaling in spatio-temporal regulation of neuronal development and remodeling2017

    • Author(s)
      Kazuo Emoto
    • Organizer
      Annual Meeting of European Developmental Biology
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Calcium signaling in spatio-temporal regulation of neuronal development and remodeling2017

    • Author(s)
      Kazuo Emoto
    • Organizer
      The 48th NIPS international Symposium
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Neuronal basis for emotion in invertebrates2017

    • Author(s)
      Kazuo Emoto
    • Organizer
      Invited seminar series in Department of Biology at University of British Columbia
    • Related Report
      2016 Annual Research Report
    • Int'l Joint Research / Invited

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Published: 2016-04-21   Modified: 2022-10-07  

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