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Investigation of the interaction between dopamine and noradrenaline signaling in the hippocampus to develop novel treatment of depression

Research Project

Project/Area Number 18K07614
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

Shuto Takahide  久留米大学, 医学部, 講師 (70412541)

Co-Investigator(Kenkyū-buntansha) 西 昭徳  久留米大学, 医学部, 教授 (50228144)
外角 直樹  久留米大学, 医学部, 講師 (60368884)
黒岩 真帆美  久留米大学, 医学部, 助教 (20585690)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2019: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywordsうつ病 / ドパミン / 海馬 / 歯状回 / 抗うつ薬 / ノルアドレナリン / 青斑核
Outline of Final Research Achievements

We have previously reported that stimulation of D1 receptors in the dentate gyrus enhances the antidepressant actions of a selective serotonin reuptake inhibitor, fluoxetine. However, the detailed mechanism remains to be elucidated. In the present study, we showed that antidepressant effects were obtained by activating the granule cells with high Drd1 promoter activity activity in the dentate gyrus. In addition, we showed that p11 in the ventral tegmental area dopaminergic neurons or nucleus accumbens noradrenergic neurons projecting to the dentate gyrus plays an important role in the stress response and the expression of antidepressant effects.

Academic Significance and Societal Importance of the Research Achievements

うつ病の約3割は既存の治療薬が治療効果を示さない治療抵抗性うつ病とされており、有効性・安全性を向上させた治療薬の開発が望まれている。歯状回に焦点を当てたうつ病に関する研究は、神経新生に焦点を当てたものが中心であるが、この仮説では説明つかない現象も報告されており、未解明なメカニズムの存在が考えられる。歯状回ドパミンD1受容体シグナル活性化による治療効果の増強は、我々が初めて発見した現象であり、抗うつ効果の治療効果発現の中核をなすメカニズムの解明につながることが期待される。また、治療抵抗性うつ病の新たな治療法開発への寄与が期待される。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (6 results)

All 2020 2019 2018

All Presentation (6 results) (of which Int'l Joint Research: 2 results)

  • [Presentation] 抗うつ作用発現における海馬歯状回ドパミンD1受容体シグナルの役割:SNRIデュロキセチンを用いた検討2020

    • Author(s)
      杉田 研介,首藤 隆秀,黒岩 真帆美,西 昭徳
    • Organizer
      第73回日本薬理学会西南部会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 海馬歯状回ドパミンD1受容体陽性細胞の選択的活性化がマウスのうつ病関連行動に及ぼす影響2019

    • Author(s)
      箱田 恵子、首藤 隆秀、黒岩 真帆美、西 昭徳
    • Organizer
      第72回 日本薬理学会西南部会
    • Related Report
      2019 Research-status Report
  • [Presentation] SNRIデュロキセチンの抗うつ作用における海馬歯状回ドパミンD1受容体シグナルの関与2019

    • Author(s)
      岡山 彰洋、楠 智華、首藤 隆秀、黒岩 真帆美、西 昭徳
    • Organizer
      第72回 日本薬理学会西南部会
    • Related Report
      2019 Research-status Report
  • [Presentation] Obligatory roles of dopamine D1 receptors in the dentate gyrus in antidepressant actions of SSRI.2019

    • Author(s)
      Takahide Shuto, Mahomi Kuroiwa, Naoki Sotogaku, Yukie Kawahara, Yoshinori Ohnishi, Yuuki Hanada, Akinori Nishi
    • Organizer
      第42回 日本神経科学大会
    • Related Report
      2019 Research-status Report
  • [Presentation] Dopamine D1 receptors in the dentate gyrus amplify therapeutic action of SSRI.2019

    • Author(s)
      Takahide Shuto, Mahomi Kuroiwa, Naoki Sotogaku, Yukie Kawahara, Yoshinori Ohnishi, Yuuki Hanada, Akinori Nishi
    • Organizer
      6th Congress of AsCNP
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research
  • [Presentation] Dopamine D1 receptor activation in the dentate gyrus enhances antidepressant effects of an SSRI, fluoxetine in a mouse model of depression2018

    • Author(s)
      T. SHUTO, M. KUROIWA, N. SOTOGAKU, Y. KAWAHARA, Y. OHNISHI, Y. HANADA, A. NISHI
    • Organizer
      The 48th Annual Meeting of the Society for Neuroscience
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research

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Published: 2018-04-23   Modified: 2022-01-27  

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