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Experience-dependent switch in mechanisms for inhibitory neurons in cortical circuits processing.

Research Project

Project/Area Number 20K06869
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 InstitutionNiigata University

Principal Investigator

Hou Xubin  新潟大学, 医歯学系, 助教 (00584765)

Co-Investigator(Kenkyū-buntansha) 菱田 竜一  新潟大学, 脳研究所, 准教授 (90313551)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords抑制性ニューロン局所回路 / 超解像分子イメージング / 視覚弁別記憶課題 / 樹状突起 / 眼優位性可塑性 / 臨界期 / 深層学習行動解析 / Coactosin / 超解像イメージング / 抑制性ニューロン / 電流源密度 / アクチン重合 / 超解像顕微鏡(SIM)
Outline of Research at the Start

抑制性ニューロンは形態や機能により十種類以上の細胞種に分類され、特性に合わせて異なる情報伝達の分岐点として働く。すなわち、個々の経験によって抑制性ニューロンの分化に偏りが生じると、臨界期の回路形成や、後の情報処理に影響を与えると推測される。これまでに、抑制性ニューロンの多様な細胞種を規定する仕組みは分かっておらず、さらに分化に偏りが生じた際の弊害も明らかになっていない。申請者は、生後に発現する抑制性ニューロンの形態分化因子を同定しており、本研究において、生後における抑制性ニューロンの形態形成と機能形成のメカニズムについて明らかにする。

Outline of Final Research Achievements

This study explores the developmental factors of inhibitory neurons, employing ultra-high-resolution imaging to elucidate their structural characteristics. A novel gene delivery technique targeting deep-brain cells has been developed, advancing our understanding of experience-dependent neural mechanisms. Analysis suggests that these developmental factors significantly influence local neural circuits, potentially enhancing visual discrimination. This research contributes to the broader field of neurobiology by linking morphological and functional attributes of neurons to cognitive processes.

Academic Significance and Societal Importance of the Research Achievements

この研究は、特定のアクチン重合因子を通じて抑制性神経細胞の形態と生理機能的特性の決定における分子メカニズムの理解を深めた。新たな遺伝子操作技術と深層学習による行動解析は、視覚障害の治療方法の改善に応用可能であり、これにより臨床応用への道が開かれる可能性があります。

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

    (10 results)

All 2023 2022 2021 2020

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

  • [Journal Article] Coactosin Promotes F-Actin Protrusion in Growth Cones Under Cofilin-Related Signaling Pathway2021

    • Author(s)
      Hou Xubin、Nozumi Motohiro、Nakamura Harukazu、Igarashi Michihiro、Sugiyama Sayaka
    • Journal Title

      Frontiers in Cell and Developmental Biology

      Volume: 9 Pages: 660349-660349

    • DOI

      10.3389/fcell.2021.660349

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Single-Cell Visualization Deep in Brain Structures by Gene Transfer2020

    • Author(s)
      Sugiyama Sayaka、Sugi Junko、Iijima Tomoya、Hou Xubin
    • Journal Title

      Frontiers in Neural Circuits

      Volume: 14

    • DOI

      10.3389/fncir.2020.586043

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Exploring individuality of inhibitory circuits in visual perception using deep learning analysis2023

    • Author(s)
      Xubin Hou, Eiko Kitayama, Kenji Sakimura and Sayaka Sugiyama
    • Organizer
      北米神経科学会(Neuroscience 2023)
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Deep learning analysis on individuality of inhibitory circuits for visual perception2023

    • Author(s)
      Xubin Hou, Eiko Kitayama, Kenji Sakimura and Sayaka Sugiyama
    • Organizer
      The 46th Annual Meeting of the Japan Neuroscience Society
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Dendritic transdifferentiation of inhibitory neurons improved visual discrimination2022

    • Author(s)
      Xubin Hou, Eiko Kitayama, Kenji Sakimura, Sayaka Sugiyama
    • Organizer
      第44回日本神経科学学会
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Visual experience specifies primary dendrites in cortical interneurons for visual perception2022

    • Author(s)
      X. HOU, E. KITAYAMA, K. SAKIMURA, S. SUGIYAMA;
    • Organizer
      米国神経科学会(Neuro2023)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Visual discrimination task using gcamp imaging2022

    • Author(s)
      Xubin Hou
    • Organizer
      Miniscope Workshop (UCLA)
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Experience-dependent actin organization specifies dendritic properties in cortical interneurons2021

    • Author(s)
      X. HOU, M. MORISHIMA, J. SUGI, K. SAKIMURA, Y. KAWAGUCHI, S. SUGIYAMA
    • Organizer
      Society for Neuroscience Annual Meeting, Neuroscience2021
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Translation-dependent wiring of cortical local circuits in visual cortex2021

    • Author(s)
      Xubin Hou, Yiwei Ling, Kenji Sakimura, Shujiro Okuda and Sayaka Sugiyama
    • Organizer
      日本神経科学学会
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Targetome profiling of Otx2-eIF4E dependent translation in cortical plasticity2020

    • Author(s)
      Xubin Hou , Yiwei Ling , Akiko Sakai , Shujiro Okuda , Sayaka Sugiyama
    • Organizer
      第43回日本神経科学大会
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research

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

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