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Development of a novel depression model in female mice.

Research Project

Project/Area Number 21K05998
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 42040:Laboratory animal science-related
Research InstitutionKagawa University

Principal Investigator

Ito Hikaru  香川大学, 医学部, 准教授 (50587392)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
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)
Keywordsうつ病 / 周産期 / ストレス / モデル動物 / 実験動物 / 周産期うつ病 / 精神的ストレス / モデルマウス / 神経科学 / 精神疾患
Outline of Research at the Start

近年のうつ病患者増加による社会的経済損失は膨大なものとされ社会問題化してきたが、現在の主なうつ病治療薬では、効果のない症例が半数以上にも及ぶ。
そのため、新たな抗うつ薬の開発が急務となっているが、その病態メカニズムの解析は未だ十分ではない。その理由の一つとして、これまでの多くのうつ病研究では雄の動物モデルが用いられてきたことが挙げられる。ヒトでのうつ病罹患率は男性より女性の方が2倍程度高いが、雌を用いたうつ病モデル動物は未だ最適なものが確立されていない。
そこで、本研究において雌マウスを用いた最適なうつ病モデルを開発し、女性のうつ病患者の脳内で起こる複合的な病態を捉える。

Outline of Final Research Achievements

In recent years, the increase in the number of patient suffering from depression has become a public problem. Although women are more than twice as likely as men to develop depression, the suitable animal model for depression using females has not been established. Therefore, the pathomechanism of depression in females is still unknown.
In this research project, we aimed to develop a new female mouse model of perinatal depression that mimics female depression during the perinatal period. We subjected female mice to chronic social defeat stress during the perinatal period. As a result, we found that perinatal female mice subjected to chronic non-discriminatory social defeat stress accompanied with sentinel male mice exhibited depression-like phenotypes such as social avoidance behavior and decreased sucrose preference at a high rate.

Academic Significance and Societal Importance of the Research Achievements

今後、本研究によって確立した周産期うつ病モデル雌マウスの脳病態解析を進める。それによって、周産期に起こる性ホルモンの急激な変動と精神的なストレスの複合的な要因で引き起こされる女性のうつ病病態を解明できるものと考えている。
さらには、この新規の周産期うつ病モデル雌マウスを、雄のうつ病モデルと共に解析に用いれば、そこで見出された治療薬は、男女問わず、なお且つ、周産期など性ホルモンに劇的な変化をきたす時期にも効果を示す広範囲のうつ病患者に適応できる新規の抗うつ薬となることを期待している。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (6 results)

All 2024 2023 2022 Other

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

  • [Journal Article] Chronic non-discriminatory social defeat stress during the perinatal period induces depressive-like outcomes in female mice2024

    • Author(s)
      Ito Masumi、Ito Hikaru、Miyoshi Kaori、Kanai-Azuma Masami
    • Journal Title

      Brain Research

      Volume: 1825 Pages: 148734-148734

    • DOI

      10.1016/j.brainres.2023.148734

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Neural mechanisms underlying uninstructed orofacial movements during reward-based learning behaviors2023

    • Author(s)
      Li Wan-Ru、Nakano Takashi、Mizutani Kohta、Matsubara Takanori、Kawatani Masahiro、Mukai Yasutaka、Danjo Teruko、Ito Hikaru、Aizawa Hidenori、Yamanaka Akihiro、Petersen Carl C.H.、Yoshimoto Junichiro、Yamashita Takayuki
    • Journal Title

      Current Biology

      Volume: 33 Issue: 16 Pages: 3436-3451

    • DOI

      10.1016/j.cub.2023.07.013

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] A possible function of <i>Nik-related kinase</i> in the labyrinth layer of delayed delivery mouse placentas2023

    • Author(s)
      Hiroshi Yomogita, Hikaru Ito, Kento Hashimoto, Akihiko Kudo, Toshiaki Fukushima, Tsutomu Endo, Yoshikazu Hirate, Yoshihiro Akimoto, Masayuki Komada, Yoshiakira Kanai, Naoyuki Miyasaka, Masami Kanai-Azuma
    • Journal Title

      Journal of Reproduction and Development

      Volume: 69 Issue: 1 Pages: 32-40

    • DOI

      10.1262/jrd.2022-120

    • ISSN
      0916-8818, 1348-4400
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 新たなうつ病モデル雌マウスの作製2024

    • Author(s)
      伊藤 日加瑠、伊藤 益美、三好 香央梨、金井 正美
    • Organizer
      第46回日本神経科学大会(仙台)
    • Related Report
      2023 Annual Research Report
  • [Presentation] 慢性ストレス負荷うつ病モデルマウスの手綱核におけるPcsk5発現増加と神経炎症2022

    • Author(s)
      伊藤日加瑠、野崎香菜子、相澤秀紀
    • Organizer
      日本実験動物学会総会
    • Related Report
      2022 Research-status Report
  • [Remarks] 伊藤日加瑠 研究室 Hikaru Ito's Labo, 論文掲載

    • URL

      https://hikaruito-labo.netlify.app/

    • Related Report
      2023 Annual Research Report

URL: 

Published: 2021-04-28   Modified: 2025-01-30  

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