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Cell type specific analysis of intracellular signal in antipsychotics

Research Project

Project/Area Number 20K07965
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 52030:Psychiatry-related
Research InstitutionNagoya University

Principal Investigator

Kuroda Keisuke  名古屋大学, 医学系研究科, 特任准教授 (80631431)

Project Period (FY) 2020-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords統合失調症治療薬 / ドーパミン / 細胞腫特異的 / シグナル解析 / 糖尿病 / 血糖値 / 統合失調症 / 細胞種特異的 / 自律神経系 / 内分泌 / 細胞内情報伝達
Outline of Research at the Start

脳は、分子・細胞・神経回路・脳・個体にいたる階層性を持つ大規模で複雑なシステムであり、機能解明には脳システムの全体像を捉えながら研究を遂行する必要がある。細胞内シグナル伝達機構を分子レベルで解明することは、脳機能の理解だけでなく、精神神経疾患の病因や病態の解明、治療法の開発に非常に重要である。しかし、脳神経系は部位毎に、機能や構成する細胞、制御する神経伝達物質が異なっており、精神神経疾患の病態解明や新規治療薬開発のためには、細胞種特異的なシグナル解析を個体内で行う必要がある。
本研究では、統合失調症治療薬が脳内で引き起こすリン酸化シグナルを細胞種特異的に解析し薬理作用を明らかにする。

Outline of Final Research Achievements

In this study, we focused on phosphorylated proteins identified using our proprietary phosphoproteomics method and compared changes in phosphorylation signals for each antipsychotic drug in the nucleus accumbens D2R-MSN. The results revealed significant differences in the activation of PKA and MAPK, as well as differences in phosphorylation responses between D2R-MSN and dopaminergic neurons upon drug administration. Notably, clozapine, which is considered effective for treatment-resistant schizophrenia, caused minimal changes in PKA signaling. Additionally, we observed that single doses of certain antipsychotic drugs caused an increase in blood glucose levels in mice, and that this phenomenon could be inhibited by another drug.

Academic Significance and Societal Importance of the Research Achievements

ドーパミンを抑制したりD2Rを阻害すると側坐核のD2R-MSNにおいてPKAシグナルが活性化する。統合失調症治療薬は側坐核のD2Rを抑制することで幻覚や妄想などの症状を改善していると考えられている。本研究により、D2R-PKAシグナル活性化の程度、すなわちD2Rの抑制作用は、薬剤によって大きく異なることが明らかとなった。また、統合失調症治療薬は代謝異常や糖尿病の副作用が知られている。統合失調症治療薬の投与による血糖値の上昇は、本薬剤が糖尿病を引き起こすメカニズムとの関係が示唆される。

Report

(6 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • 2022 Research-status Report
  • 2021 Research-status Report
  • 2020 Research-status Report
  • Research Products

    (7 results)

All 2024 2022 2021 2020

All Journal Article (5 results) (of which Int'l Joint Research: 5 results,  Peer Reviewed: 5 results,  Open Access: 5 results) Presentation (1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Signal flow in the NMDA receptor-dependent phosphoproteome regulates postsynaptic plasticity for aversive learning2024

    • Author(s)
      Funahashi Y, Ahammad RU, Zhang X, Hossen E, Kawatani M, Nakamuta S, Yoshimi A, Wu M, Wang H, Wu M, Li X, Faruk MO, Shohag MH, Lin YH, Tsuboi D, Nishioka T, Kuroda K, Amano M, Noda Y, Yamada K, Sakimura K, Nagai T, Yamashita T, Uchino S, Kaibuchi K.
    • Journal Title

      Science Signaling

      Volume: 17 Issue: 853

    • DOI

      10.1126/scisignal.ado9852

    • URL

      https://pure.teikyo.jp/en/publications/9bebdb49-9238-4906-9a92-f39be2a0ae70

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [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 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Striatal TRPV1 activation by acetaminophen ameliorates dopamine D2 receptor antagonists-induced orofacial dyskinesia2021

    • Author(s)
      Nagaoka Koki、Nagashima Takuya、Asaoka Nozomi、Yamamoto Hiroki、Toda Chihiro、Kayanuma Gen、Siswanto Soni、Funahashi Yasuhiro、Kuroda Keisuke、Kaibuchi Kozo、Mori Yasuo、Nagayasu Kazuki、Shirakawa Hisashi、Kaneko Shuji
    • Journal Title

      JCI Insight

      Volume: in press Issue: 10 Pages: 1-16

    • DOI

      10.1172/jci.insight.145632

    • NAID

      120007038817

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [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] 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
      2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 抗精神病薬クロザピンはグルカゴンを介して高血糖を引き起こす2022

    • Author(s)
      三浦 宗一郎, 小島 崇裕, 近藤 怜苑, 林 良敬, 黒田 啓介
    • Organizer
      第45回日本分子生物学会年会
    • Related Report
      2022 Research-status Report
  • [Patent(Industrial Property Rights)] 体調測定装置2024

    • Inventor(s)
      KURODA Keisuke
    • Industrial Property Rights Holder
      KURODA Keisuke
    • Industrial Property Rights Type
      特許
    • Filing Date
      2024
    • Related Report
      2024 Annual Research Report

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Published: 2020-04-28   Modified: 2026-01-16  

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