• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

A role of insula neural circuits in aversive behavior

Research Project

Project/Area Number 20K06928
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 46030:Function of nervous system-related
Research InstitutionKumamoto University

Principal Investigator

Takemoto Makoto  熊本大学, 大学院生命科学研究部(医), 講師 (20543408)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords島皮質 / 嫌悪反応 / 神経回路 / 情動
Outline of Research at the Start

島皮質は、嫌悪反応のトップダウン制御に関与することで最近注目を集めているが、「能動的に逃げる」か「受動的に身構える」かの選択に関わるかどうかは不明のままである。申請者らは、島皮質から情動制御の中心的役割を担う皮質下領域への独立した2つの神経回路(並列神経回路)をマウスで発見した。本研究の目的は、能動的/受動的嫌悪反応の選択における島皮質並列神経回路の役割を解明することであり、本研究の成果は、不安障害や心的外傷後ストレス障害の発症メカニズムの研究に重要な示唆を与えるものとなる。

Outline of Final Research Achievements

The insular cortex (insula) plays a role in taste sensation and feeding behavior, yet how insular neurons act remains unclear. We investigated the neuroanatomy of mouse insula layer 5 (L5) projecting to subcortical structures in detail, and found two sublayers (i.e. L5a and L5b) with distinct subcortical projections. Additionally, by using an optogenetic technique, we demonstrated that the activation of L5a and L5b suppressed and facilitated water drinking behavior, respectively, in thirsty mice. This finding suggests a role for insula in a top-down modulation of appetitive behaviors, and provides an insight into the therapeutic approach to feeding disorders (e.g. binge-eating and anorexia) and addiction.

Academic Significance and Societal Importance of the Research Achievements

本研究は、動機付け行動のトップダウン調節機構の一端を明らかにしたものであり、摂食障害(過食症・拒食症)や依存症等の治療法開発に重要な示唆を与える。

Report

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

    (6 results)

All 2023 2022 2021 2020

All Journal Article (3 results) (of which Open Access: 1 results,  Peer Reviewed: 2 results) Presentation (3 results)

  • [Journal Article] Dissection of insular cortex layer 5 reveals two sublayers with opposing modulatory roles in appetitive behavior2022

    • Author(s)
      Makoto Takemoto, Shigeki Kato, Kazuto Kobayashi, Wen-Jie Song
    • Journal Title

      BioRxiv

      Volume: -

    • DOI

      10.1101/2022.06.15.494020

    • Related Report
      2022 Annual Research Report
    • Open Access
  • [Journal Article] Postnatal development of subfields in the core region of the mouse auditory cortex2021

    • Author(s)
      Feian Chen, Makoto Takemoto, Masataka Nishimura, Ryohei Tomioka, Wen-Jie Song
    • Journal Title

      Hearing Research

      Volume: 400 Pages: 108138-108138

    • DOI

      10.1016/j.heares.2020.108138

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] Differential cortical and subcortical projection targets of subfields in the core region of mouse auditory cortex.2020

    • Author(s)
      Nakata S. Takemoto M, Song W-J.
    • Journal Title

      Hearing Research

      Volume: 386 Pages: 107876-107876

    • DOI

      10.1016/j.heares.2019.107876

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] 「嬉しさ」の探求に向けて2023

    • Author(s)
      竹本 誠
    • Organizer
      統合的脳神経科学・SIMo研究会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Opposing roles for anatomically distinct neuronal populations of insular cortex layer 5 in appetitive behavior2022

    • Author(s)
      Makoto Takemoto, Wen-Jie Song
    • Organizer
      Neuro2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] Anatomical and functional heterogeneity in layer 5 sublayers of the mouse insular cortex2022

    • Author(s)
      Makoto Takemoto, Shigeki Kato, Kazuto Kobayashi, Wen-Jie Song
    • Organizer
      Development and Plasticity of the Brain
    • Related Report
      2022 Annual Research Report

URL: 

Published: 2020-04-28   Modified: 2024-01-30  

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi