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Dimensional approaches to psychiatric disorders associated with circuit abnormalities induced by genetic and environmental insults combined with inflammation in the brain

Research Project

Project/Area Number 19H03547
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 51030:Pathophysiologic neuroscience-related
Research InstitutionKyoto University

Principal Investigator

Sakurai Takeshi  京都大学, 医学研究科, 客員研究員 (90615717)

Co-Investigator(Kenkyū-buntansha) 大槻 元  京都大学, 医学研究科, 特定教授 (60723278)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,550,000 (Direct Cost: ¥13,500,000、Indirect Cost: ¥4,050,000)
Fiscal Year 2021: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2020: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Fiscal Year 2019: ¥7,410,000 (Direct Cost: ¥5,700,000、Indirect Cost: ¥1,710,000)
Keywords社会性ストレス / 思春期 / マウスモデル / 脳内炎症 / 精神疾患
Outline of Research at the Start

精神疾患を行動ドメインで再分類し、各々のドメインの障害がどの神経回路のどのような異常で起こるかを明らかにするアプローチが、精神疾患の生物学的理解と今後の新たな治療法の確立に重要である。思春期の社会性ストレスは脳内炎症を通じて様々な要因で脆弱性を持つ脳の発達に影響を及ぼし精神疾患の発症につながると考えられる。本研究ではマウスモデルを使ってその障害の過程を行動ドメイン毎に分子、細胞、神経ネットワークの各レベルで明らかにし、社会性ストレスによって惹起される炎症の調節で将来の精神疾患にみられる行動表現型の出現を予防する方策を探る。

Outline of Final Research Achievements

There may be a wide variety of changes in reactivity and plasticity of neurons as well as reactivity of immune cells in many brain regions of mouse models that have genetic modification of synaptic molecules or maternal immune challenges during embryonic development. When social stress is applied to those brain regions during adolescence, circuitry specific effects in neuronal activities as well as stress responses in the entire brain may be induced, leading to behavioral changes in the domains relevant to psychiatric disorders such as schizophrenia. These results suggest the importance of developing strategy to increase mental resilience to social stress during adolescence to overcome vulnerability in the brain introduced by genetic and environmental factors.

Academic Significance and Societal Importance of the Research Achievements

精神疾患の発症リスクの高い人達には、発症以前から遺伝・環境要因による脳の脆弱性の存在が想定されているが、その脆弱性は神経生物学的に多様な事象が関わっており、さらにそこに思春期の社会性ストレスなどによって負荷がかかる事により成人での行動や認知機能異常につながると考えられる事が明らかとなった。今後、その原因毎の脳内の脆弱性の詳細な解析が必要なことに加え、現在問題となっているパンデミックによる社会的状況によってその増大が懸念されている思春期の社会性ストレスに対しては、科学的エビデンスに基づいた有効でかつ多様なメンタルヘルスサポートの必要性が示唆された。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (9 results)

All 2022 2020 2019 2018 Other

All Int'l Joint Research (3 results) Journal Article (6 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 5 results,  Open Access: 1 results)

  • [Int'l Joint Research] Johns Hopkins University/Harvard Medical School(米国)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] iPSYCH/Aarhus University(デンマーク)

    • Related Report
      2020 Annual Research Report
  • [Int'l Joint Research] Johns Hopkins University(米国)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] social processes and social environment during development2022

    • Author(s)
      Sakurai Takeshi
    • Journal Title

      Seminars in Cell and Developmental Biology

      Volume: - Pages: 40-46

    • DOI

      10.1016/j.semcdb.2021.09.016

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Microglia-triggered hypoexcitability plasticity of pyramidal neurons in the rat medial prefrontal cortex2022

    • Author(s)
      Yamawaki Yuki、Wada Yayoi、Matsui Sae、Ohtsuki Gen
    • Journal Title

      Current Research in Neurobiology

      Volume: 3 Pages: 100028-100028

    • DOI

      10.1016/j.crneur.2022.100028

    • NAID

      120007191373

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] From population to neuron: exploring common mediators for metabolic problems and mental illnesses2020

    • Author(s)
      Takayanagi Yoichiro、Ishizuka Koko、Laursen Thomas M.、Yukitake Hiroshi、Yang Kun、Cascella Nicola G.、Ueda Shuhei、Sumitomo Akiko、Narita Zui、Horiuchi Yasue、Niwa Minae、Taguchi Akiko、White Morris F.、Eaton William W.、Mortensen Preben B.、Sakurai Takeshi、Sawa Akira
    • Journal Title

      Molecular Psychiatry

      Volume: - Issue: 8 Pages: 3931-3942

    • DOI

      10.1038/s41380-020-00939-5

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] LOCATION, LOCATION, LOCATION: Location of neuroinflammation is important for pathogenesis of schizophrenia2020

    • Author(s)
      Takeshi Sakurai
    • Journal Title

      Brain, Behavior, and Immunity

      Volume: 88 Pages: 842-843

    • DOI

      10.1016/j.bbi.2020.06.026

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Editorial for “What can clinical findings tell us about the neurobiology of schizophrenia? Revisited”2019

    • Author(s)
      Sakurai Takeshi、Sawa Akira
    • Journal Title

      Neurobiology of Disease

      Volume: 131 Pages: 104521-104521

    • DOI

      10.1016/j.nbd.2019.104521

    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Journal Article] Cognitive functions associated with developing prefrontal cortex during adolescence and developmental neuropsychiatric disorders2018

    • Author(s)
      Sakurai Takeshi、Gamo Nao J.
    • Journal Title

      Neurobiology of Disease

      Volume: in press Pages: 104322-104322

    • DOI

      10.1016/j.nbd.2018.11.007

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research

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Published: 2019-04-18   Modified: 2023-01-30  

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