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

Elucidation of the molecular basis of monoamine-mediated oligodendrocyte neogenesis and the pathological basis of schizophrenia

Research Project

Project/Area Number 20K07738
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 51030:Pathophysiologic neuroscience-related
Research InstitutionOsaka Kawasaki Rehabilitation University

Principal Investigator

Ohgomori Tomohiro  大阪河崎リハビリテーション大学, リハビリテーション学部, 講師 (80584755)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
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: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords統合失調症 / モノアミン系シグナル / オリゴデンドロサイト / 感覚運動ゲーティング / 脳血流 / 前頭前野 / 脳波 / 前頭葉 / 運動と感覚 / NIRS / クプリゾン / 海馬 / 神経新生 / 脳活動
Outline of Research at the Start

本研究では統合失調症の新たな病態基盤としてモノアミン系投射路によるオリゴデンドロサイトの機能異常を想定している。銅のキレーターであるクプリゾンを混合した餌を与えたマウスを統合失調症モデルマウスとして使用し、海馬のオリゴデンドロサイトに注目した行動学的・形態学的・分子生物学的な実験を実施する。さらにモノアミン系投射路を制御する抗精神病薬やオリゴデンドロサイトの分化促進剤を併用することによって治療介入実験を行い、統合失調症の病態基盤がモノアミンを介したオリゴデンドロサイトの機能異常によるものかどうかを明らかにする。

Outline of Final Research Achievements

The impairment of sensory motor gating is observed in patients with schizophrenia. Schizophrenia-like behavior (impairment of prepulse inhibition) was observed in mice treated with cuprizone for 2 weeks. Immunohistochemical analysis revealed that the white matter abnormalities were not observed and the quiescence of neural stem cells was enhanced in hippocampal dentate gyrus of mice treated with cuprizone. The prefrontal cortex is important for both sensorimotor gating and memory. Therefore, we additionally investigated the interference between sensorimotor gating and memory in healthy adults using functional imaging and physiological techniques. It was found that partial sensory deprivation increased theta activity and increased blood flow in the prefrontal cortex, leading to improved performance in memory tasks.

Academic Significance and Societal Importance of the Research Achievements

本研究では当初統合失調症モデル動物でみられる行動異常が白質病変に基づくものであると考えたが、少なくともクプリゾン投与マウスでみられる感覚-運動ゲーティングの異常は白質病変とは独立した現象であることを明らかにした。また統合失調症治療薬として古くから使われてきたドーパミン拮抗薬は大脳基底核が関わる運動機能に対する副作用が懸念されており、近年ではモノアミン系拮抗薬が主流となっているが、依然として統合失調症患者における転倒リスクの高さは問題であり、基底核系とは異なる神経基盤の異常が考えられる。本研究ではその要因の1つとして前頭前野の機能を明らかにしたものである。

Report

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

    (18 results)

All 2023 2022 2021 2020

All Journal Article (8 results) (of which Peer Reviewed: 8 results,  Open Access: 1 results) Presentation (10 results) (of which Int'l Joint Research: 1 results)

  • [Journal Article] Deterioration of postural control due to the increase of similarity between center of pressure and smooth-pursuit eye movements during standing on one leg2022

    • Author(s)
      Nakahara Hikaru、Nawata Rukia、Matsuo Ryota、Ohgomori Tomohiro
    • Journal Title

      PLOS ONE

      Volume: 17 Issue: 10 Pages: e0276119-e0276119

    • DOI

      10.1371/journal.pone.0276119

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] 安価で簡易な視線計測システムの構築2022

    • Author(s)
      大篭友博
    • Journal Title

      大阪河崎リハビリテーション大学紀要

      Volume: 16 Pages: 46-56

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] A unique subtype of ramified microglia associated with synapses in the rat hippocampus2021

    • Author(s)
      Ohgomori Tomohiro、Iinuma Kyoko、Yamada Jun、Jinno Shozo
    • Journal Title

      European Journal of Neuroscience

      Volume: 54 Issue: 3 Pages: 4740-4754

    • DOI

      10.1111/ejn.15330

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Activation of the Prefrontal Cortex and Improvement of Cognitive Performance with Standing on One Leg2021

    • Author(s)
      Sugihara Yuma、Matsuura Tomoki、Kubo Yusuke、Ohgomori Tomohiro
    • Journal Title

      Neuroscience

      Volume: 477 Pages: 50-62

    • DOI

      10.1016/j.neuroscience.2021.10.004

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Signal Transducer and Activator of Transcription 3 Activation in Hippocampal Neural Stem Cells and Cognitive Deficits in Mice Following Short-term Cuprizone Exposure2021

    • Author(s)
      Ohgomori Tomohiro、Jinno Shozo
    • Journal Title

      Neuroscience

      Volume: 472 Pages: 90-102

    • DOI

      10.1016/j.neuroscience.2021.07.031

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Development of monoclonal antibody therapy against Alzheimer's disease2021

    • Author(s)
      Masatoshi Takeda, Sara Yasutake, Aoi Ashizuka, Kenji Oka, Tomohiro Ohgomori, Misa Nakamura
    • Journal Title

      Cognition & Rehabilitation

      Volume: 2 Pages: 50-59

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Modulation of neuropathology and cognitive deficits by lipopolysaccharide preconditioning in a mouse pilocarpine model of status epilepticus2020

    • Author(s)
      Ohgomori Tomohiro、Jinno Shozo
    • Journal Title

      Neuropharmacology

      Volume: 176 Pages: 108227-108227

    • DOI

      10.1016/j.neuropharm.2020.108227

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Journal Article] The expression of keratan sulfate reveals a unique subset of microglia in the mouse hippocampus after pilocarpine‐induced status epileptics2020

    • Author(s)
      Ohgomori Tomohiro、Jinno Shozo
    • Journal Title

      J Comp Neurol

      Volume: -

    • Related Report
      2020 Research-status Report
    • Peer Reviewed
  • [Presentation] 感覚入力の急速変化による代償的な脳活動変化2023

    • Author(s)
      大篭友博、上翔馬、中濱翔、林純平
    • Organizer
      第127回日本解剖学会総会・全国学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Neural mechanisms to compensate postural instability caused by visual stimuli2022

    • Author(s)
      Tomohiro Ohgomori, Hikaru Nakahara, Rukia Nawata, Ryota Matsuo
    • Organizer
      Neuro2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] 身体重心動揺の意識的制御に関連した大脳皮質神経活動2022

    • Author(s)
      大篭友博
    • Organizer
      パラレル脳センシング研究部門第2回公開シンポジウム
    • Related Report
      2022 Annual Research Report
  • [Presentation] 認知や感覚刺激による重心動揺への干渉効果2022

    • Author(s)
      大篭友博
    • Organizer
      第6回包括的神経グリア研究会
    • Related Report
      2021 Research-status Report
  • [Presentation] Short-term memory was improved by the precise control of posture2021

    • Author(s)
      Yuma Sugihara, Tomoki Matsuura, Yusuke Kubo, Tomohiro Ohgomori
    • Organizer
      第44回日本神経科学学会
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] 視覚刺激と前頭葉賦活化課題が姿勢制御に与える影響2021

    • Author(s)
      大篭友博、中原輝星、松尾陵汰、縄田ルキア
    • Organizer
      第127回日本解剖学会総会
    • Related Report
      2021 Research-status Report
  • [Presentation] Enhanced quiescence of neural stem cells in the hippocampus by short-term exposure to cuprizone, a mouse model for schizophrenia2021

    • Author(s)
      Tomohiro Ohgomori, Shozo Jinno
    • Organizer
      第126回日本解剖学会総会・全国学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] 入浴習慣が課題依存性の前頭前野活性化の閾値に与える影響の解明2021

    • Author(s)
      大篭友博
    • Organizer
      日本健康開発財団 研究助成報告会
    • Related Report
      2020 Research-status Report
  • [Presentation] A unique subset of ramified microglia expressing keratan sulfate in the hippocampus of normal rats2020

    • Author(s)
      Tomohiro Ohgomori, Shozo Jinno
    • Organizer
      第96回日本解剖学会近畿支部学術集会
    • Related Report
      2020 Research-status Report
  • [Presentation] Olig2-positive astrocyte in the hippocampus of a mouse model of temporal lobe epilepsy2020

    • Author(s)
      Tomohiro Ohgomori, Shozo Jinno
    • Organizer
      第43回神経科学学会
    • Related Report
      2020 Research-status 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