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多様な行動を適応的に創出する回路遷移機構のセンサスに基づく解明

Publicly Offered Research

Project AreaCensus-based biomechanism of circuit construction and transition for adaptive brain functions
Project/Area Number 22H05487
Research Category

Grant-in-Aid for Transformative Research Areas (A)

Allocation TypeSingle-year Grants
Review Section Transformative Research Areas, Section (III)
Research InstitutionThe University of Tokyo

Principal Investigator

能瀬 聡直  東京大学, 大学院新領域創成科学研究科, 教授 (30260037)

Project Period (FY) 2022-06-16 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥9,880,000 (Direct Cost: ¥7,600,000、Indirect Cost: ¥2,280,000)
Fiscal Year 2023: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2022: ¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Keywordsショウジョウバエ / 運動回路 / 行動選択 / カルシウムイメージング / センサス
Outline of Research at the Start

本研究ではショウジョウバエ幼虫が状況に応じて前進と後退という逆方向の移動運動を切り替える系をモデルとして、適応的な脳機能を生む回路遷移機構を探る。これまでに、感覚入力を受け前進/後退運動を司令するWaveニューロンと、前進/後退の運動出力を担う神経回路を明らかにすることに成功している。本研究では両者の間に存在し、回路遷移において決定的な役割を果たすような候補細胞を、1)活動依存的に色変換する蛍光タンパク質CaMPARI2による標識・単離と単一細胞RNA-seqによる比較遺伝子プロファイリング、2)膨張試料顕微鏡法を用いたカルシウムイメージング試料における細胞同定、により同定することを目指す。

Outline of Annual Research Achievements

外界との相互作用のなかで生存に適した行動を選択することは、脳神経系の最も重要な機能である。本研究ではショウジョウバエ幼虫において、行動選択時に活動する細胞を系統的にプロファイリングすることで適応機能を生む回路遷移の仕組みを探った。このため、幼虫が状況に応じて前進と後退という逆方向の移動運動を切り替える系をモデルとした以下の2つの計画を進めた。
(計画1)活動依存的標識と遺伝子プロファイリングによる同定:単離標本においてWaveの光活性化により前進、後退運動が起こる際に活動する細胞を、活動依存的に色変換する蛍光タンパク質CaMPARI2を用いて標識、単離し、単一細胞RNA-seq解析により各細胞の遺伝子プロファイルを得、さらに前進/後退間の比較解析により、それぞれの行動において選択的に活動する細胞を同定することを目指した。今年度は、低温プロテアーゼを用いて脳組織を単細胞に解離するプロトコルを確立した。また小規模な予備的実験においてセルソーターを用いた赤色標識細胞の分離にも成功した。今後、規模を拡大した標識細胞の分離を行いRNA-seq解析へと進める予定である。
(計画2)系統的カルシウムイメージングと膨張試料顕微鏡法による同定:疎らな発現を誘導する36 個のGAL4 系統を用いて様々な神経細胞のサブセットでカルシウムプローブGCaMPを発現し、カルシウムイメージングを行うことで、前進あるいは後退時に選択的に活動する細胞を検索した。その結果、前進運動で選択的に活動する神経細胞を見つけることができたが、その後の解析により、この標的神経細胞は、既知の前進運動選択的な細胞A18b3(CLI1)であることがわかった。この結果は、本アプローチの有効性を示すもので、今後さらに系統探索を進めることで新規細胞を同定することができると期待される。

Research Progress Status

令和5年度が最終年度であるため、記入しない。

Strategy for Future Research Activity

令和5年度が最終年度であるため、記入しない。

Report

(2 results)
  • 2023 Annual Research Report
  • 2022 Annual Research Report
  • Research Products

    (23 results)

All 2024 2023 2022 Other

All Int'l Joint Research (2 results) Journal Article (7 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 6 results,  Open Access: 7 results) Presentation (13 results) (of which Int'l Joint Research: 8 results,  Invited: 5 results) Remarks (1 results)

  • [Int'l Joint Research] University of Cambridge/University of St Andrews(英国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] University of Cambridge/University of St Andrews(英国)

    • Related Report
      2022 Annual Research Report
  • [Journal Article] A vacuum-actuated soft robot inspired by Drosophila larvae to study kinetics of crawling behaviour2023

    • Author(s)
      Sun Xiyang、Nose Akinao、Kohsaka Hiroshi
    • Journal Title

      PLOS ONE

      Volume: 18 Issue: 4 Pages: 1-18

    • DOI

      10.1371/journal.pone.0283316

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Synchronous multi-segmental activity between metachronal waves controls locomotion speed in Drosophila larvae2023

    • Author(s)
      Liu Yingtao、Hasegawa Eri、Nose Akinao、Zwart Maarten F、Kohsaka Hiroshi
    • Journal Title

      eLife

      Volume: 12

    • DOI

      10.7554/elife.83328

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Segment-specific axon guidance by Wnt/Fz signaling diversifies motor commands in Drosophila larvae2023

    • Author(s)
      Takagi Suguru、Takano Shiina、Hashimoto Yusaku、Morise Shu、Zeng Xiangsunze、Nose Akinao
    • Journal Title

      bioRxiv

      Volume: -

    • DOI

      10.1101/2023.09.05.555126

    • Related Report
      2023 Annual Research Report
    • Open Access
  • [Journal Article] Electrophysiological Validation of Monosynaptic Connectivity between Premotor Interneurons and the aCC Motoneuron in the Drosophila Larval CNS2022

    • Author(s)
      Giachello Carlo N. G.、Hunter Iain、Pettini Tom、Coulson Bramwell、Knufer Athene、Cachero Sebastian、Winding Michael、Arzan Zarin Aref、Kohsaka Hiroshi、Fan Yuen Ngan、Nose Akinao、Landgraf Matthias、Baines Richard A.
    • Journal Title

      The Journal of Neuroscience

      Volume: 42 Issue: 35 Pages: 6724-6738

    • DOI

      10.1523/jneurosci.2463-21.2022

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A neuromechanical model for Drosophila larval crawling based on physical measurements2022

    • Author(s)
      Sun Xiyang、Liu Yingtao、Liu Chang、Mayumi Koichi、Ito Kohzo、Nose Akinao、Kohsaka Hiroshi
    • Journal Title

      BMC Biology

      Volume: 20 Issue: 1 Pages: 130-130

    • DOI

      10.1186/s12915-022-01336-w

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Comparative analysis of high- and low-level deep learning approaches in microsatellite instability prediction2022

    • Author(s)
      Park Jeonghyuk、Chung Yul Ri、Nose Akinao
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 12218-12218

    • DOI

      10.1038/s41598-022-16283-3

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Extraction of bouton-like structures from neuropil calcium imaging data2022

    • Author(s)
      Fukumasu Kazushi、Nose Akinao、Kohsaka Hiroshi
    • Journal Title

      Neural Networks

      Volume: 156 Pages: 218-238

    • DOI

      10.1016/j.neunet.2022.09.033

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Transient suppression of tonically active neurons gates motor output in Drosophila larval crawling2024

    • Author(s)
      Date Takahisa、Liu Yingtao、Yamaguchi Akihiro、Rui Wu、Paul McNulty、Marc Gershow、Maarten Zwart、Nose Akinao、Kohsaka Hiroshi
    • Organizer
      Asia Pacific Drosophila Neurobiology Conference 3
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Identification of a novel interneuron that regulates forward wave propagation in Drosophila larvae2024

    • Author(s)
      Seki Takaki、Kohsaka Hiroshi、Nose Akinao
    • Organizer
      Asia Pacific Drosophila Neurobiology Conference 3
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] A tonically active neuron implicated in the maintenance of muscle relaxation in Drosophila larvae2023

    • Author(s)
      Date Takahisa、Liu Yingtao、Nose Akinao、Kohsaka Hiroshi
    • Organizer
      Neurobiology of Drosophila 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Emergence of oscillatory motor activities in developing Drosophila embryos2023

    • Author(s)
      Zeng XiangSunZe、Komanome Yuko、Seki Takaki、Kazama Hokuto、Nose Akinao
    • Organizer
      The 56th Annual Meeting of the Japanese Society of Developmental Biologists
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Two perpendicular stripe-wise structures in the neuropil involved in generation of Drosophila larval crawling behaviors2023

    • Author(s)
      Fukumasu Kazushi、Nose Akinao、Kohsaka Hiroshi
    • Organizer
      第46 回日本神経科学大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Revealing behavior-specific neuronal populations in Drosophila larvae with a photoconvertible calcium sensor2023

    • Author(s)
      Date Takahisa、Nose Akinao、Kohsaka Hiroshi
    • Organizer
      第46 回日本神経科学大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Mechanisms of neural circuit reorganization that enable coordinated movement2023

    • Author(s)
      Seki Takaki、Komanome Yuko、 Zeng XiangSunZe、Kohsaka Hiroshi、Nose Akinao
    • Organizer
      第46 回日本神経科学大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Spatiotemporal structure of synapse population activity in the motor circuits for crawling2023

    • Author(s)
      Fukumasu Kazushi、Nose Akinao、Kohsaka Hiroshi
    • Organizer
      第75回日本細胞生物学会大会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Comprehensive characterization of behavior specific neurons in fruit fly larvae with a photoconvertible calcium sensor2023

    • Author(s)
      Takahisa Date, Akinao Nose, Hiroshi Kohsaka
    • Organizer
      Adaptive Circuit Census (ACC) International Symposium 2023
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Molecular and cellular mechanisms underlying the emergence of spontaneous patterned activity crucial for motor development in Drosophila2022

    • Author(s)
      XiangSunZe Zeng, Yuko Komanome, Hokto Kazama, Akinao Nose
    • Organizer
      NEURO2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Functional development of neural circuits that regulate animal behaviors2022

    • Author(s)
      Akinao Nose
    • Organizer
      The Neurophysics of Locomotion
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Synchronous multi-segmental activity controls the speed of axial locomotion by modulating the interval between peristaltic waves in Drosophila larvae2022

    • Author(s)
      Yingtao Liu, Akinao Nose, Maarten Frans Zwart, Hiroshi Kohsaka
    • Organizer
      SfN Neuroscience meeting 2022
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Synchronous multi-segmental activity between metachronal waves controls the crawling speed in fly larvae2022

    • Author(s)
      Yingtao Liu, Akinao Nose, Maarten F Zwart, Hiroshi Kohsaka
    • Organizer
      第45 回日本分子生物学会年会(MBSJ2022)
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Remarks] 能瀬研究室

    • URL

      http://bio.phys.s.u-tokyo.ac.jp/

    • Related Report
      2023 Annual Research Report 2022 Annual Research Report

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Published: 2022-06-20   Modified: 2024-12-25  

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