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Comprehensive analyses of neural circuit dynamics by integration of expansion microscopy and whole-brain calcium imaging

Research Project

Project/Area Number 22K19479
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 51:Brain sciences and related fields
Research InstitutionThe University of Tokyo

Principal Investigator

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

Project Period (FY) 2022-06-30 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2023: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2022: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywordsショウジョウバエ / 膨張顕微鏡 / カルシウムイメージング / コネクトーム / 神経回路
Outline of Research at the Start

本研究では、全脳カルシウムイメージングを行った標本そのものにおいて膨張試料顕微鏡法を用いコネクトミクス解析を可能とすることで、脳神経系全体の「神経活動」と「回路構造」に関する情報を統合しその作動機構をシステムレベルで解析することを目的とする。このためショウジョウバエ幼虫をモデルとした研究を行う。具体的には特異的に可視化した神経突起を教師データとした深層学習により、膨張試料顕微鏡画像において神経突起を自動追跡可能な検出器を構築する。これにより、効率良く全細胞の形態を再構築・同定し、カルシウムイメージングとコネクトミクスのデータを照会可能とする。

Outline of Final Research Achievements

This study aimed to integrate information regarding the “activity” and “structure” of neurons by using expansion microscopy which enables visualization of fine structures of neuronal tissues at the light level. We applied expansion microscopy to the central nervous system of Drosophila larvae, realized ~100nm resolution, and succeeded in visualizing the structures of individual axons and synapses in pan-neuronally stained samples. Furthermore, by combining with the photo-convertible calcium sensor CaMPARI2, we succeeded in linking data of neural activity to those of neuronal fine structures. Taken together, we used expansion microscopy to establish an experimental system which integrates information regarding the “activity” and “structure” of neurons.

Academic Significance and Societal Importance of the Research Achievements

神経回路を細胞レベルで解析することは、特に遺伝学的手法の開発が進んだモデル動物では重要な研究戦略であるが、神経細胞の数に比して良い遺伝子マーカーの数が少ないため、遺伝学的ラベリングができない細胞が生じ、それらはどうしても解析から漏れてしまう。本研究で開発した膨張試料顕微鏡法を用いた手法は、遺伝子マーカーの有無によらず神経細胞を効率良く同定することを可能とすることで、神経活動パターン解析の自由度を大きく高めるであろう。

Report

(3 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status 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 Research-status 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 Research-status 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 Research-status 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 Research-status 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 Research-status 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 Research-status 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 Research-status 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 Research-status 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 Research-status 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 Research-status Report
    • Invited
  • [Remarks] 能瀬研究室

    • URL

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

    • Related Report
      2023 Annual Research Report 2022 Research-status Report

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Published: 2022-07-05   Modified: 2025-01-30  

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