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Analysis of neuronal circuits that control body posture using larval zebrafish

Research Project

Project/Area Number 18KK0215
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research (B))

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 46:Neuroscience and related fields
Research InstitutionCenter for Novel Science Initatives, National Institutes of Natural Sciences

Principal Investigator

Higashijima Shin-ichi  大学共同利用機関法人自然科学研究機構(新分野創成センター、アストロバイオロジーセンター、生命創成探究, 生命創成探究センター, 教授 (80270479)

Co-Investigator(Kenkyū-buntansha) 谷本 昌志  大学共同利用機関法人自然科学研究機構(新分野創成センター、アストロバイオロジーセンター、生命創成探究, 生命創成探究センター, 助教 (30608716)
木村 有希子  大学共同利用機関法人自然科学研究機構(新分野創成センター、アストロバイオロジーセンター、生命創成探究, 生命創成探究センター, 助教 (70581122)
Project Period (FY) 2018-10-09 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2020: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2019: ¥4,680,000 (Direct Cost: ¥3,600,000、Indirect Cost: ¥1,080,000)
Fiscal Year 2018: ¥8,580,000 (Direct Cost: ¥6,600,000、Indirect Cost: ¥1,980,000)
Keywordsゼブラフィッシュ / 前庭感覚 / 有毛細胞 / イメージング / 回転顕微鏡 / 姿勢制御 / 内耳前庭器官 / 神経回路 / 前庭 / ライトシート顕微鏡
Outline of Final Research Achievements

Maintaining head and body orientation relative to the Earth’s vertical gravity axis is vital for survival. Vestibular organs in the inner ear play a crucial role for this task. Sensory hair cells in the otolith organs receive linear acceleration, e.g., head tilt, translation and vibration. To visualize hair cell responses to the head motion, we built a microscope in which an objective lens can tilt with a small sample 360 degree by a motorized stage during Calcium imaging. With this tiltable objective microscope, we imaged neural activity in all the utricular hair cell at the single-cell level during pitch or roll tilt/vibration in 5-day-old transgenic zebrafish larvae expressing Calcium indicator, jGCaMP7f, and red fluorescent protein, tdTomato, in the hair cells. The imaging strategy we have established here is applicable to the central nervous system, and thus it will provide deeper understanding of the vestibular processing in the brain.

Academic Significance and Societal Importance of the Research Achievements

360度任意の傾斜刺激を与えながら任意の神経細胞の活動をカルシウムイメージングで可視化する新規光学系を構築した。これは世界初の画期的成果であり、今後の前庭感覚の知覚の神経機構、および姿勢制御を司る神経機構の解明に向けて研究がスピードアップしていくことが強く期待される。その意味で、当該分野において大きな学術的意義を持つ研究成果であると考えている。

Report

(5 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Research-status Report
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (1 results)

All 2020

All Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results,  Open Access: 1 results)

  • [Journal Article] Functional Diversity of Glycinergic Commissural Inhibitory Neurons in Larval Zebrafish2020

    • Author(s)
      Satou Chie、Sugioka Takumi、Uemura Yuto、Shimazaki Takashi、Zmarz Pawel、Kimura Yukiko、Higashijima Shin-ichi
    • Journal Title

      Cell Reports

      Volume: 30 Issue: 9 Pages: 3036-3050

    • DOI

      10.1016/j.celrep.2020.02.015

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research

URL: 

Published: 2018-10-12   Modified: 2023-01-30  

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