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Elucidation of the Fundamental Principles of 'Emotions' through Genetics and Imaging

Research Project

Project/Area Number 21K19274
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 44:Biology at cellular to organismal levels, and related fields
Research InstitutionNagoya City University

Principal Investigator

Kimura Kotaro  名古屋市立大学, 大学院理学研究科, 教授 (20370116)

Co-Investigator(Kenkyū-buntansha) 中川 敦子  名古屋市立大学, 大学院人間文化研究科, 教授 (90188889)
Project Period (FY) 2021-07-09 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥5,720,000 (Direct Cost: ¥4,400,000、Indirect Cost: ¥1,320,000)
Fiscal Year 2022: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
Fiscal Year 2021: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Keywords感情 / 遺伝学的解析 / イメージング / カルシウムイメージング
Outline of Research at the Start

神経科学において近年注目されつつある高次脳機能は「感情」である。研究代表者木村は、線虫C. エレガンスにおいて「感情」を反映すると考えられる刺激応答行動を見出した。本研究では、この刺激応答行動を順遺伝学的手法で解析することにより、「感情」に関わる遺伝子を網羅的に同定する。さらに先端的な全脳神経活動イメージングによって、C. エレガンスの全脳神経活動が「感情」によってどのように変化するかを明らかにする。本研究の成果が発展することで、モデル動物はもちろんヒトの「感情」に関する研究の飛躍的発展のきっかけとなることが期待できる。

Outline of Final Research Achievements

To analyze the fundamental principles of "emotions", we utilized the behavioral response of the model organism C. elegans to electrical stimuli. We tried to identify genes involved in the response to electrical stimulation through genetic analysis and observed the changes in whole-brain neural activity through high-speed three-dimensional imaging. As a result, we found that L-type voltage-gated Ca++ channel and proprotein convertase required for neuropeptide maturation are involved in the response to electrical stimulation. Furthermore, from the whole-brain imaging, neural activities involved in persistent response behavior were observed. These results could lead to a new understanding of the mechanisms underlying emotion generation.

Academic Significance and Societal Importance of the Research Achievements

動物の「感情」の研究は、チャールズ・ダーウィン卿による著書まで遡ることができる (Darwin 1872)。しかし、「感情」は複雑であるが故に厳密な定義が困難であり、モデル動物を用いた解析は齧歯類の「すくみ」などに限定されていた。本研究で、線虫C. エレガンスの「感情」に関わる遺伝子や神経活動の手掛かりを得ることができたので、これらの研究を進めることによって、モデル動物はもちろんヒトの「感情」に関する研究の飛躍的発展のきっかけとなることが期待できる。

Report

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

    (9 results)

All 2022 2021 Other

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

  • [Int'l Joint Research] ノースイースタン大学(米国)

    • Related Report
      2022 Annual Research Report
  • [Int'l Joint Research] Mills College(米国)

    • Related Report
      2021 Research-status Report
  • [Journal Article] Tracking Moving Cells in 3D Time Lapse Images Using 3DeeCellTracker2022

    • Author(s)
      Wen Chentao、Kimura Koutarou
    • Journal Title

      BIO-PROTOCOL

      Volume: 12 Issue: 4

    • DOI

      10.21769/bioprotoc.4319

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Cross-species behavior analysis with attention-based domain-adversarial deep neural networks2021

    • Author(s)
      Maekawa Takuya、Higashide Daiki、Hara Takahiro、Matsumura Kentarou、Ide Kaoru、Miyatake Takahisa、Kimura Koutarou D.、Takahashi Susumu
    • Journal Title

      Nature Communications

      Volume: 12 Issue: 1 Pages: 5519-5519

    • DOI

      10.1038/s41467-021-25636-x

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] クローズアップ実験法 series 338 三次元自動細胞追跡ツール:3DeeCellTrackerで解析できることと使い方2021

    • Author(s)
      Wen Chentao, 木村幸太郎
    • Journal Title

      実験医学

      Volume: 39 Pages: 2264-2272

    • Related Report
      2021 Research-status Report
  • [Presentation] Toward understanding whole brain activity associated with emotion in C. elegans2022

    • Author(s)
      Ryoga Suzuki, Yuto Endo, Ling Fei Tee, Chentao Wen, Kotaro Kimura
    • Organizer
      NEURO2022 (The 45th Anual Meeting of the Japan Neuroscience Society)
    • Related Report
      2022 Annual Research Report
  • [Presentation] Toward the understanding of molecular mechanism of electrical sensation and response.2021

    • Author(s)
      Tee LF, Young JJ, Maruyama K, Suzuki R, Kimura K
    • Organizer
      23rd International C. elegans conference
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Toward the understanding of molecular mechanism of electrical sensation and response using the nematode C. elegans2021

    • Author(s)
      Tee LF, Young JJ, Maruyama K, Suzuki R, Kimura K
    • Organizer
      he 44th Annual Meeting of the Japan Neuroscience Society
    • Related Report
      2021 Research-status Report
  • [Remarks] 木村研究室HP

    • URL

      https://www.kokimura-lab.org

    • Related Report
      2021 Research-status Report

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Published: 2021-07-13   Modified: 2024-01-30  

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