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Research on brainstem circuits that integrate binaural vestibular inputs in larval zebrafish as a model system

Research Project

Project/Area Number 20K06866
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 46010:Neuroscience-general-related
Research InstitutionNational Institute for Basic Biology

Principal Investigator

Tanimoto Masashi  基礎生物学研究所, 神経行動学研究部門, 助教 (30608716)

Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥650,000 (Direct Cost: ¥500,000、Indirect Cost: ¥150,000)
Fiscal Year 2021: ¥520,000 (Direct Cost: ¥400,000、Indirect Cost: ¥120,000)
Fiscal Year 2020: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords前庭 / 内耳 / 耳石器官 / 前庭神経核 / ゼブラフィッシュ / 空間識 / 内側縦束核 / 卵形嚢 / カルシウムイメージング / 脳幹
Outline of Research at the Start

本研究ではゼブラフィッシュ仔魚をモデルとし、遺伝子組換え系統を用いて生体内で脳幹前庭神経核の細胞種を同定・可視化した上で、単一細胞レベルのカルシウムイメージング・細胞標識により機能・形態を、膜電位イメージング/電気生理によりシナプス入力を、機能操作により回路機能・行動出力への寄与を調べ、回路構成と情報処理機構を明らかにする。

Outline of Final Research Achievements

In this study, we constructed a microscope that is capable of imaging the activity of neuronal populations at the single-cell level during static head tilts and vibration stimuli. We measured the activity of neural cell populations in zebrafish larvae by Ca2+ imaging and elucidated the direction selectivity of individual neurons. We also found that the larvae exhibit rostral trunk bending in response to static roll tilt, and clarified the biomechanics and neural circuitry underlying this postural control behavior that maintains an upward dorsal orientation.

Academic Significance and Societal Importance of the Research Achievements

本研究で構築した頭部の加速度刺激時の神経活動を可視化できる顕微鏡システムは、平衡感覚や運動制御の基礎的理解に貢献する。また、得られた知見は脊椎動物の姿勢制御の神経回路についての基礎的知見を生みだした。
本研究成果は、水中での微細な姿勢制御法として機械制御などの技術応用にもつながる基礎知見を提供するほか、平衡障害の病態解明や乗り物酔いなどの症状発症メカニズムの解明、治療法開発など福祉・医療分野の発展につながる可能性がある。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (12 results)

All 2024 2023 2022 2021 2020 Other

All Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (8 results) (of which Int'l Joint Research: 5 results,  Invited: 4 results) Remarks (2 results)

  • [Journal Article] Biomechanics and neural circuits for vestibular-induced fine postural control in larval zebrafish2023

    • Author(s)
      Sugioka Takumi、Tanimoto Masashi、Higashijima Shin-ichi
    • Journal Title

      Nature Communications

      Volume: 14 Issue: 1 Pages: 1217-1217

    • DOI

      10.1038/s41467-023-36682-y

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Tiltable objective microscope visualizes selectivity for head motion direction and dynamics in zebrafish vestibular system2022

    • Author(s)
      Tanimoto Masashi、Watakabe Ikuko、Higashijima Shin-ichi
    • Journal Title

      Nature Communications

      Volume: 13 Issue: 1 Pages: 7622-7622

    • DOI

      10.1038/s41467-022-35190-9

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 小さな魚の生体イメージングから探る脊椎動物の内耳感覚受容機構2024

    • Author(s)
      谷本昌志
    • Organizer
      鶴舞耳鼻科会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] 脊椎動物の内耳感覚受容・姿勢制御機構をゼブラフィッシュ仔魚の生体イメージングから探る2023

    • Author(s)
      谷本昌志
    • Organizer
      第598回日本動物学会北海道支部講演会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] ゼブラフィッシュ仔魚を用いた前庭神経回路のイメージング解析2023

    • Author(s)
      谷本昌志
    • Organizer
      JST CREST「空間識の幾何による重力覚解明と感覚拡張世界創出」第1回 シンポジウム
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Tiltable objective microscope elucidates sensory transduction of head movement and neural/behavioral mechanisms for a fine postural control in larval zebrafish2022

    • Author(s)
      Masashi Tanimoto, Takumi Sugioka, Ikuko Watakabe, Shin-ichi Higashijima
    • Organizer
      Imaging Structure and Function of the Zebrafish Brain Conference
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Kinetics and neural circuit mechanisms of a fine postural control in larval zebrafish2022

    • Author(s)
      Takumi Sugioka, Masashi Tanimoto, Shin-ichi Higashijima
    • Organizer
      Neuro2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Striolar and extrastriolar utricular hair cells preferentially transduce head vibration and static tilt respectively2022

    • Author(s)
      Masashi Tanimoto, Ikuko Watakabe, Shin-ichi Higashijima
    • Organizer
      Neuro2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] In vivo Ca2+ imaging during head movement with a Tiltable Objective Microscope visualizes topographic organization of response selectivity for stimulus direction and modality in the vestibular periphery2021

    • Author(s)
      Masashi Tanimoto, Shin-ichi Higashijima
    • Organizer
      The 44th Annual Meeting of the Japanese Neuroscience Society
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] ゼブラフィッシュを用いた脊椎動物の姿勢制御メカニズムの機能イメージング解析2020

    • Author(s)
      谷本昌志, 東島眞一
    • Organizer
      第3回 ExCELLSシンポジウム
    • Related Report
      2020 Research-status Report
    • Invited
  • [Remarks] 対物レンズ傾斜顕微鏡によって頭部の傾斜・運動中の神経活動の可視化に成功

    • URL

      https://www.nibb.ac.jp/press/2022/12/21.html

    • Related Report
      2022 Research-status Report
  • [Remarks] 魚の微細な姿勢制御メカニズムとその神経回路が明らかに

    • URL

      https://www.nibb.ac.jp/press/2023/03/10.html

    • Related Report
      2022 Research-status Report

URL: 

Published: 2020-04-28   Modified: 2025-01-30  

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