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Deciphering the Enigmatic Fusion of Sensory Information in the Dynamic Remodeling of Central Nervous System Circuits following Peripheral Sensory Impairment

Research Project

Project/Area Number 19K24025
Research Category

Grant-in-Aid for Research Activity Start-up

Allocation TypeMulti-year Fund
Review Section 0906:Surgery related to the biological and sensory functions and related fields
Research InstitutionThe University of Tokyo

Principal Investigator

Urata Shinji  東京大学, 医学部附属病院, 助教 (60849404)

Project Period (FY) 2021-03-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥2,860,000 (Direct Cost: ¥2,200,000、Indirect Cost: ¥660,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords感覚障害 / 難聴 / 平衡障害 / 嗅覚障害 / 感覚中枢 / 可塑性 / 多感覚統合 / マルチセンシング / 聴覚 / 平衡覚 / 嗅覚 / 視覚 / 感覚統合
Outline of Research at the Start

感覚刺激(音・重力・角加速度・光・匂い)は常時入力されているが、解剖学的構造による時空間解像度の制約のため、各末梢受容器から中枢に至る伝導路における神経回路形成及び複数感覚情報の統合について、同時に解析することはこれまで不可能であった。本研究では、超時空間制御下に末梢から中枢の聴覚伝導路(蝸牛神経核、下丘、聴皮質)、前庭伝導路(前庭神経核、小脳前庭、前庭皮質)、視覚伝導路(上丘、視覚皮質)、嗅覚伝導路(糸状体、嗅内野皮質)における、多点同時in vivo imagingと組織透明化によるイメージングを用いて、末梢感覚機能喪失後の中枢神経回路再編過程における感覚情報の統合のメカニズム解明を行う。

Outline of Final Research Achievements

The aim of this study is to elucidate the mechanisms of central compensation when peripheral sensory functions such as auditory, vestibular, and olfactory senses are chronically impaired. By analyzing the changes in central nervous system circuits, we utilized adeno-associated virus (AAV) to express GCaMP in neurons of the auditory cortex, vestibular nuclei, and olfactory bulb. Following the insertion of GRIN lens, calcium imaging of neural activity was performed using the UCLA miniscope.

Academic Significance and Societal Importance of the Research Achievements

難聴、めまい、嗅覚障害は独立事象ではなく、実臨床での感覚障害は多岐にわたる。本研究では感覚中枢領域の多点同時イメージング技術を確立し、末梢神経傷害後に長期に観察することを目的とした。
本研究では、AAVを用いて聴覚皮質、前庭神経核、嗅球にGCaMPを発現させ、GRINレンズごしに小型内視鏡(UCLA mini scope)を用いてCaイメージングできる技術を確立させてた。一方、scopeの干渉により多点観察は聴覚皮質と嗅球のみで可能であった。本研究目的の達成には体動補正、scopeの小型化、高感度カルシウムセンサーの開発、などさらなる検討が必要である。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2019 Annual Research Report
  • Research Products

    (8 results)

All 2023 2022 2021 2019

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

  • [Journal Article] Three-dimensional mouse cochlea imaging based on the modified Sca/eS using confocal microscopy2023

    • Author(s)
      Urata S, Okabe S
    • Journal Title

      Anatomical Science International

      Volume: - Issue: 3 Pages: 309-317

    • DOI

      10.1007/s12565-023-00703-z

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] In vivo Chronic Two-Photon Imaging of Microglia in the Mouse Hippocampus2022

    • Author(s)
      Kamei Ryosuke、Urata Shinji、Maruoka Hisato、Okabe Shigeo
    • Journal Title

      Journal of Visualized Experiments

      Volume: - Issue: 185

    • DOI

      10.3791/64104

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Prolonged and extended impacts of SARS-CoV-2 on the olfactory neurocircuit2022

    • Author(s)
      Kishimoto-Urata Megumi、Urata Shinji、Kagoya Ryoji、Imamura Fumiaki、Nagayama Shin、Reyna Rachel A.、Maruyama Junki、Yamasoba Tatsuya、Kondo Kenji、Hasegawa-Ishii Sanae、Paessler Slobodan
    • Journal Title

      Scientific Reports

      Volume: 12 Issue: 1 Pages: 5728-5728

    • DOI

      10.1038/s41598-022-09731-7

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Regeneration Profiles of Olfactory Epithelium after SARS-CoV-2 Infection in Golden Syrian Hamsters2021

    • Author(s)
      Urata Shinji、Maruyama Junki、Kishimoto-Urata Megumi、Sattler Rachel A.、Cook Rebecca、Lin Nantian、Yamasoba Tatsuya、Makishima Tomoko、Paessler Slobodan
    • Journal Title

      ACS Chemical Neuroscience

      Volume: 12 Issue: 4 Pages: 589-595

    • DOI

      10.1021/acschemneuro.0c00649

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Cellular cartography of the organ of Corti based on optical tissue clearing and machine learning2019

    • Author(s)
      Urata Shinji、Iida Tadatsune、Yamamoto Masamichi、Mizushima Yu、Fujimoto Chisato、Matsumoto Yu、Yamasoba Tatsuya、Okabe Shigeo
    • Journal Title

      eLife

      Volume: 8

    • DOI

      10.7554/elife.40946

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A Novel Technique for Imaging and Analysis of Hair Cells in the Organ of Corti Using Modified Sca/eS and Machine Learning2019

    • Author(s)
      Urata Shinji、Iida Tadatsune、Suzuki Yuri、Lin Shiou-Yuh、Mizushima Yu、Fujimoto Chisato、Matsumoto Yu、Yamasoba Tastuya
    • Journal Title

      BIO-PROTOCOL

      Volume: 9 Issue: 16

    • DOI

      10.21769/bioprotoc.3342

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 新規透明化手法(modified Sca/eS)を用いた蝸牛全解析2019

    • Author(s)
      浦田真次
    • Organizer
      第64回日本聴覚医学会
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 中枢における聴覚認知機能イメージング2019

    • Author(s)
      浦田真次
    • Organizer
      第29回日本耳科学会
    • Related Report
      2019 Annual Research Report

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Published: 2019-09-03   Modified: 2024-12-25  

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