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Development of novel therapeutic approaches focused on phosphodiesterases for psychiatric disorders

Research Project

Project/Area Number 16K10198
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Psychiatric science
Research InstitutionKurume University

Principal Investigator

Kuroiwa Mahomi  久留米大学, 医学部, 助教 (20585690)

Co-Investigator(Kenkyū-buntansha) 西 昭徳  久留米大学, 医学部, 教授 (50228144)
首藤 隆秀  久留米大学, 医学部, 講師 (70412541)
大西 克典  久留米大学, 医学部, 助教 (10626865)
Research Collaborator Hikida Takatoshi  
Project Period (FY) 2016-04-01 – 2019-03-31
Project Status Completed (Fiscal Year 2018)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsホスホジエステラーゼ / ドーパミン / うつ病 / 海馬歯状回 / 統合失調症 / 脳神経疾患 / 脳・神経 / 薬理学
Outline of Final Research Achievements

Depression is one of the most common psychiatric disorders, but the etiology of depression is not fully understood. To address the role of adolescent stress in the development of depression, we combined a transgenic mouse model in which a mutation of DISC1, used as a genetic risk factor and adolescent social isolation stress. Both DISC1-mutant mice and wild-type mice with social isolation stress showed depression-like behaviors and showed modest differences in dopamine D1 receptor signaling in the prefrontal cortex and hippocampal dentate gyrus. In addition, in the wild-type mice with environmental enrichment showed enhanced effects of the PDE4 inhibitor rolipram on PKA signaling in the dentate gyrus, however, wild-type mice with social isolation stress showed attenuation of the effects of rolipram. These results suggest that the mutation of DISC1 and social isolation stress may contribute to the development of depression.

Academic Significance and Societal Importance of the Research Achievements

個別飼育ストレスを負荷したDISC1遺伝子改変マウスは、遺伝因子と思春期の環境因子の相乗作用が発症要因であるとするtwo-hit-theory に合致した有用な動物モデルである。
本研究の結果より、うつ病の発症には遺伝的素因とストレスの負荷が関与していることが示唆され、うつ病のメカニズム解明の糸口となることが期待される。また、うつ病モデル動物を用いた研究およびストレス負荷を行う研究においては、対照群を含め、環境エンリッチメントを始めとする飼育環境の条件設定を厳密に行う必要があることが明らかとなった。

Report

(4 results)
  • 2018 Annual Research Report   Final Research Report ( PDF )
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (7 results)

All 2018 2017

All Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results,  Open Access: 2 results,  Acknowledgement Compliant: 1 results) Presentation (5 results) (of which Int'l Joint Research: 2 results)

  • [Journal Article] Obligatory roles of dopamine D1 receptors in the dentate gyrus in antidepressant actions of a selective serotonin reuptake inhibitor, fluoxetine2018

    • Author(s)
      Shuto Takahide、Kuroiwa Mahomi、Sotogaku Naoki、Kawahara Yukie、Oh Yong-Seok、Jang Jin-Hyeok、Shin Chang-Hoon、Ohnishi Yoshinori N.、Hanada Yuuki、Miyakawa Tsuyoshi、Kim Yong、Greengard Paul、Nishi Akinori
    • Journal Title

      Molecular Psychiatry

      Volume: 10 Issue: 6 Pages: 1-16

    • DOI

      10.1038/s41380-018-0316-x

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Glutamate Counteracts Dopamine/PKA Signaling via Dephosphorylation of DARPP-32 Ser-97 and Alteration of Its Cytonuclear Distribution.2017

    • Author(s)
      Nishi A, Matamales M, Musante V, Valjent E, Kuroiwa M, Kitahara Y, Rebholz H, Greengard P, Girault JA, Nairn AC
    • Journal Title

      J Biol Chem

      Volume: 292 Issue: 4 Pages: 1462-1476

    • DOI

      10.1074/jbc.m116.752402

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research / Acknowledgement Compliant
  • [Presentation] Dopamine D1 receptor activation in the dentate gyrus enhances antidepressant effects of SSRI2018

    • Author(s)
      Takahide Shuto, Mahomi Kuroiwa, Naoki Sotogaku, Yukie Kawahara, Yoshinori Ohnishi, Yuuki Hanada, Akinori Nishi
    • Organizer
      第18回国際薬理学・臨床薬理学会議
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 領域別線条体におけるドパミンシグナル解析2018

    • Author(s)
      杦山 慶太、黒岩 真帆美、 首藤 隆秀、 福田 孝一、 西 昭徳
    • Organizer
      第71回日本薬理学会西南部会
    • Related Report
      2018 Annual Research Report
  • [Presentation] Dopamine D1 receptor activation in the dentate gyrus enhances antidepressant effects of an SSRI, fluoxetine in a mouse model of depression2018

    • Author(s)
      Takahide Shuto, Mahomi Kuroiwa, Naoki Sotogaku, Yukie Kawahara, Yoshinori Ohnishi, Yuuki Hanada, Akinori Nishi
    • Organizer
      第48回北米神経科学会議
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Glutamate counteracts dopamine/PKA signaling via nuclear sequestration of inactive DARPP-322017

    • Author(s)
      Mahomi Kuroiwa, Yosuke Kitahara and Akinori Nishi
    • Organizer
      第90回 日本薬理学会年会
    • Place of Presentation
      長崎ブリックホール、長崎新聞文化ホール アストピア(長崎県長崎市)
    • Year and Date
      2017-03-15
    • Related Report
      2016 Research-status Report
  • [Presentation] 飼育環境が及ぼすストレス応答の変化2017

    • Author(s)
      黒岩 真帆美、杦山 慶太、首藤 隆秀、西 昭徳
    • Organizer
      第 70 回日本薬理学会西南部会
    • Related Report
      2017 Research-status Report

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Published: 2016-04-21   Modified: 2020-03-30  

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