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Study on development of novel antipsychotics based on reverse translational research

Research Project

Project/Area Number 20K07082
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 47040:Pharmacology-related
Research InstitutionFujita Health University

Principal Investigator

Nagai Taku  藤田医科大学, その他部局等, 教授 (10377426)

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: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords統合失調症 / 遺伝子変異 / マウス / コピー数多型
Outline of Research at the Start

統合失調症は、陽性症状、陰性症状および認知機能障害を示す重大な精神疾患であり、現在の治療では十分な効果が得られない難治例も多い。現在、精神疾患の診断は精神症候学に依拠しており、病態を反映した客観的な診断法はなく、治療法の開発も遅れている。統合失調症の発症に関する遺伝的寄与は大きいと推測されているが、発症メカニズムの詳細は未だ不明である。統合失調症の発症に強く関連するコピー数多型(CNV)としてARHGAP10を含む多数の遺伝子が日本人の統合失調症患者で同定されている。本研究課題では、統合失調症患者と同様の遺伝子変異を有する新規モデルマウスの包括的解析を実施し、新規治療薬の基盤を提示する。

Outline of Final Research Achievements

We recently found a significant association between exonic copy-number variations in the Rho GTPase activating protein 10 (Arhgap10) gene and schizophrenia in Japanese patients. Accordingly, we generated a mouse model (Arhgap10 mutant mice) carrying a missense variant and a coexisting frameshift mutation. The expression levels of phosphorylated MYPT-1 and PAK1/2 in the striatum and nucleus accumbens (NAc) were increased in Arhgap10 mutant mice compared with wild-type littermates. Arhgap10 mutant mice exhibited an increase in neuronal complexity and spine density in the striatum and NAc. The number of c-Fos-positive cells was significantly increased after methamphetamine treatment in the dorsomedial striatum and NAc core of Arhgap10 mutant mice. These results suggested that schizophrenia-associated Arhgap10 gene mutations result in morphological abnormality of neurons in the striatum and NAc.

Academic Significance and Societal Importance of the Research Achievements

統合失調症は、重大な精神疾患であり、現在の治療では十分な効果が得られない難治例も多い。現在、精神疾患の診断は精神症候学に依拠しており、病態を反映した客観的な診断法はなく、治療法の開発も遅れている。統合失調症の発症に関する遺伝的寄与は大きいと推測されているが、発症メカニズムの詳細は未だ不明であり、病態に基づく治療薬開発が進んでいないのが現状である。本研究課題では、神経化学、形態学および行動薬理学を融合させた包括的解析を実施することにより統合失調症患者で同定されたARHGAP10遺伝子変異の病態生理学的意義を明らかにすることができた。Rhoシグナルを標的とした新規治療薬の開発に繋がる成果を示した。

Report

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

    (30 results)

All 2023 2022 2021 2020 Other

All Journal Article (17 results) (of which Int'l Joint Research: 10 results,  Peer Reviewed: 17 results,  Open Access: 15 results) Presentation (11 results) (of which Int'l Joint Research: 2 results,  Invited: 10 results) Remarks (2 results)

  • [Journal Article] DARPP-32/protein phosphatase 1 regulates Rasgrp2 as a novel component of dopamine D1 receptor signaling in striatum.2023

    • Author(s)
      Kuroiwa, M., Shuto, T., Nagai, T., Amano, M., Kaibuchi, K., Nairn, A.C., Nishi, A.
    • Journal Title

      Neurochem. Int.

      Volume: 162 Pages: 105438-105438

    • DOI

      10.1016/j.neuint.2022.105438

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] An evaluation method for developing abuse-deterrent opioid formulations with agonist and antagonist combinations using conditioned place preference.2023

    • Author(s)
      Zhang, X., Kitaichi, K., Mouri A., Zhou, X., Nabeshima, T., Yamada, K., Nagai, T.
    • Journal Title

      Biochem. Biophys. Res. Commun.

      Volume: 639 Pages: 100-105

    • DOI

      10.1016/j.bbrc.2022.11.072

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Inhibition of Rho-kinase ameliorates decreased spine density in the medial prefrontal cortex and methamphetamine-induced cognitive dysfunction in mice carrying schizophrenia-associated mutations of the Arhgap10 gene.2023

    • Author(s)
      Tanaka R, Liao J, Hada K, Mori D, Nagai T, Matsuzaki T, Nabeshima T, Kaibuchi K, Ozaki N, Mizoguchi H, Yamada K.
    • Journal Title

      Pharmacological Research

      Volume: 187 Pages: 106589-106589

    • DOI

      10.1016/j.phrs.2022.106589

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Mice with exonic RELN deletion identified from a patient with schizophrenia have impaired visual discrimination learning and reversal learning in touchscreen operant tasks2022

    • Author(s)
      Liao Jingzhu、Dong Geyao、Wulaer Bolati、Sawahata Masahito、Mizoguchi Hiroyuki、Mori Daisuke、Ozaki Norio、Nabeshima Toshitaka、Nagai Taku、Yamada Kiyofumi
    • Journal Title

      Behavioural Brain Research

      Volume: 416 Pages: 113569-113569

    • DOI

      10.1016/j.bbr.2021.113569

    • NAID

      120007190677

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Clinical impact of standardized creatinine on dose adjustment of capecitabine2022

    • Author(s)
      Ito, A., Ichikawa, K., Miyazaki, M., Sagara, A., Motegi, T., Ando, Y., Senzaki, K., Nagai, T., Yamada K.
    • Journal Title

      Nagoya Journal of Medical Science

      Volume: 84 Issue: 3 Pages: 547-553

    • DOI

      10.18999/nagjms.84.3.547

    • ISSN
      0027-7622
    • URL

      https://nagoya.repo.nii.ac.jp/records/2003747

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Phosphoproteomic of the acetylcholine pathway enables discovery of the PKC-β-PIX-Rac1-PAK cascade as a stimulatory signal for aversive learning2022

    • Author(s)
      Yamahashi Y, Lin YH, Mouri A, Iwanaga S, Kawashima K, Tokumoto Y, Watanabe Y, Faruk MO, Zhang X, Tsuboi D, Nakano T, Saito N, Nagai T, Yamada K, Kaibuchi K.
    • Journal Title

      Molecular Psychiatry

      Volume: 27 Issue: 8 Pages: 3479-3492

    • DOI

      10.1038/s41380-022-01643-2

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Antipsychotic-like effects of fasudil, a Rho-kinase inhibitor, in a pharmacologic animal model of schizophrenia.2022

    • Author(s)
      Takase S, Liao J, Liu Y, Tanaka R, Miyagawa Y, Sawahata M, Sobue A, Mizoguchi H, Nagai T, Kaibuchi K, Ozaki N, Yamada K.
    • Journal Title

      European Journal of Pharmacology

      Volume: 15;931 Pages: 175207-175207

    • DOI

      10.1016/j.ejphar.2022.175207

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dopamine drives neuronal excitability via KCNQ channel phosphorylation for reward behavior2022

    • Author(s)
      Tsuboi Daisuke、Otsuka Takeshi、Shimomura Takushi、Faruk Md Omar、Yamahashi Yukie、Amano Mutsuki、Funahashi Yasuhiro、Kuroda Keisuke、Nishioka Tomoki、Kobayashi Kenta、Sano Hiromi、Nagai Taku、Yamada Kiyofumi、Tzingounis Anastasios V.、Nambu Atsushi、Kubo Yoshihiro、Kawaguchi Yasuo、Kaibuchi Kozo
    • Journal Title

      Cell Reports

      Volume: 40 Issue: 10 Pages: 111309-111309

    • DOI

      10.1016/j.celrep.2022.111309

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Muscarinic signaling regulates voltage‐gated potassium channel KCNQ2 phosphorylation in the nucleus accumbens via protein kinase C for aversive learning2021

    • Author(s)
      Faruk Md. Omar、Tsuboi Daisuke、Yamahashi Yukie、Funahashi Yasuhiro、Lin You‐Hsin、Ahammad Rijwan Uddin、Hossen Emran、Amano Mutsuki、Nishioka Tomoki、Tzingounis Anastasios V、Yamada Kiyofumi、Nagai Taku、Kaibuchi Kozo
    • Journal Title

      Journal of Neurochemistry

      Volume: 160 Issue: 3 Pages: 325-341

    • DOI

      10.1111/jnc.15555

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Mice carrying a schizophrenia-associated mutation of the Arhgap10 gene are vulnerable to the effects of methamphetamine treatment on cognitive function: association with morphological abnormalities in striatal neurons2021

    • Author(s)
      Hada K, Wulaer B, Nagai T, Itoh N, Sawahata M, Sobue A, Mizoguchi H, Mori D, Kushima I, Nabeshima T, Ozaki N, Yamada K.
    • Journal Title

      Mol Brain

      Volume: 14(1) Issue: 1 Pages: 21-21

    • DOI

      10.1186/s13041-021-00735-4

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Microinjection of Reelin into the mPFC prevents MK-801-induced recognition memory impairment in mice2021

    • Author(s)
      Sawahata Masahito、Asano Hiroki、Nagai Taku、Ito Norimichi、Kohno Takao、Nabeshima Toshitaka、Hattori Mitsuharu、Yamada Kiyofumi
    • Journal Title

      Pharmacological Research

      Volume: 173 Pages: 105832-105832

    • DOI

      10.1016/j.phrs.2021.105832

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Accumbal D2R-medium spiny neurons regulate aversive behaviors through PKA-Rap1 pathway.2020

    • Author(s)
      Lin, Y-H., Yamahashi, Y., Kuroda, K., Faruk M. O., Zhang, X., Yamada, K., Yamanaka, A., Nagai, T., Kaibuchi, K.
    • Journal Title

      Neurocham. Int.

      Volume: 143 Pages: 104935-104935

    • DOI

      10.1016/j.neuint.2020.104935

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Comprehensive analysis of a novel mouse model of the 22q11.2 deletion syndrome: a model with the most common 3.0-Mb deletion at the human 22q11.2 locus2020

    • Author(s)
      Saito Ryo、Koebis Michinori、Nagai Taku、Shimizu Kimiko、Liao Jingzhu、Wulaer Bolati、Sugaya Yuki、Nagahama Kenichiro、Uesaka Naofumi、Kushima Itaru、Mori Daisuke、Maruyama Kazuaki、Nakao Kazuki、Kurihara Hiroki、Yamada Kiyofumi、Kano Masanobu、Fukada Yoshitaka、Ozaki Norio、Aiba Atsu
    • Journal Title

      Translational Psychiatry

      Volume: 10 Issue: 1 Pages: 35-35

    • DOI

      10.1038/s41398-020-0723-z

    • URL

      https://pure.teikyo.jp/en/publications/ffaf265c-5861-4ce2-beba-82ea8b69cfa5

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Generation and analysis of novel Reln-deleted mouse model corresponding to exonic Reln deletion in schizophrenia2020

    • Author(s)
      Masahito Sawahata, Daisuke Mori, Yuko Arioka, Hisako Kubo, Itaru Kushima, Kanako Kitagawa, Akira Sobue, Emiko Shishido, Mariko Sekiguchi, Akiko Kodama, Ryosuke Ikeda, Branko Aleksic, Hiroki Kimura, Kanako Ishizuka, Taku Nagai, Kozo Kaibuchi, Toshitaka Nabeshima, Kiyofumi Yamada, Norio Ozaki
    • Journal Title

      Psychiatry and clinical neurosciences

      Volume: 1 Issue: 5 Pages: 1-10

    • DOI

      10.1111/pcn.12993

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] AUTS2 regulation of synapses for proper synaptic inputs and social communication.2020

    • Author(s)
      Hori Kei、Yamashiro Kunihiko、Nagai Taku、... Yamada Mitsuhiko、Yamada Kiyofumi、Hoshino Mikio
    • Journal Title

      iScience

      Volume: ー Issue: 6 Pages: 101183-101183

    • DOI

      10.1016/j.isci.2020.101183

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] ARHGAP10, which encodes Rho GTPase-activating protein 10, is a novel gene for schizophrenia risk2020

    • Author(s)
      Mariko Sekiguchi, Akiko Kodama,... Emiko Shishido,... Daisuke Mori, Norio Ozaki
    • Journal Title

      Translational psychiatry

      Volume: 10 Issue: 1 Pages: 1-15

    • DOI

      10.1038/s41398-020-00917-z

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Reelin Supplementation Into the Hippocampus Rescues Abnormal Behavior in a Mouse Model of Neurodevelopmental Disorders2020

    • Author(s)
      Ibi Daisuke、Nakasai Genki、Koide Nayu、Sawahata Masahito、Kohno Takao、Takaba Rika、Nagai Taku、Hattori Mitsuharu、Nabeshima Toshitaka、Yamada Kiyofumi、Hiramatsu Masayuki
    • Journal Title

      Frontiers in Cellular Neuroscience

      Volume: 14 Pages: 285-285

    • DOI

      10.3389/fncel.2020.00285

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 知ってそうで知らなかった精神神経薬:ドパミンの働きと抗精神病薬の使い方.2022

    • Author(s)
      永井拓
    • Organizer
      第96回日本薬理学会年会/第43回日本臨床薬理学会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] オピオイド受容体拮抗薬を配合した乱用抵抗性製剤の効果に関する薬理学的検討.2022

    • Author(s)
      永井拓, 張心健, 山田清文
    • Organizer
      第57回日本アルコール・アディクション医学会学術総会(アルコール・薬物依存関連学会 合同学術総会)
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Accumbal D2R-medium spiny neurons regulate aversive behaviors through PKA-Rap1 pathway.2022

    • Author(s)
      Nagai T, Lin Y-H, Yamahashi Y, Kuroda K, Faruk MO, Zhang X, Kaibuchi K.
    • Organizer
      4th Japan-UK Neuroscience Symposium 2022.
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] PKA-Rap1 pathway in the nucleus accumbens regulates emotional behaviors of mice.2022

    • Author(s)
      Nagai T.
    • Organizer
      The 1st Fujita International Symposium on Brain Science.
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 快・不快を生み出す脳内分子メカニズム2021

    • Author(s)
      永井拓
    • Organizer
      第43回日本生物学的精神医学会・第51回日本神経精神薬理学会合同年会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 情動行動とタンパク質リン酸化2021

    • Author(s)
      永井拓
    • Organizer
      第94回日本生化学会大会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] コカインにより惹起されるリン酸化シグナルの解明2021

    • Author(s)
      永井拓
    • Organizer
      2021年度アルコール・薬物依存関連学会合同学術総会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 情動行動の発現に関与する脳内シグナル伝達機構2021

    • Author(s)
      永井拓
    • Organizer
      2021年度生理学研究所研究会
    • Related Report
      2021 Research-status Report
    • Invited
  • [Presentation] 客観的な診断に基づく統合失調症の新規治療法の開発2020

    • Author(s)
      永井拓, 尾崎紀夫, 山田清文.
    • Organizer
      第30回日本医療薬学会年会
    • Related Report
      2020 Research-status Report
  • [Presentation] 次世代を担う若き医療薬科学研究者達へ繋ぐバトン:恩師からのメッセージ2020

    • Author(s)
      永井拓
    • Organizer
      第14回次世代を担う若手のための医療薬科学シンポジウム
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] 精神疾患の新規薬物療法を目指したリバーストランスレーショナルリサーチ2020

    • Author(s)
      永井拓
    • Organizer
      第41回日本臨床薬理学会学術総会
    • Related Report
      2020 Research-status Report
    • Invited
  • [Remarks] 藤田医科大学 精神・神経病態解明センター神経行動薬理学研究部門ホームページ

    • URL

      https://www.fujita-hu.ac.jp/icbs/behav-neuropharmacol/

    • Related Report
      2022 Annual Research Report
  • [Remarks] 藤田医科大学 精神・神経病態解明センターホームページ

    • URL

      https://www.fujita-hu.ac.jp/icbs/

    • Related Report
      2022 Annual Research Report

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

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