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Development of novel therapeutic strategy for mental disorders targeting NLRP3 inflammasome

Research Project

Project/Area Number 17K10273
Research Category

Grant-in-Aid for Scientific Research (C)

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

Principal Investigator

IWATA Masaaki  鳥取大学, 医学部, 准教授 (40346367)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2017: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Keywordsうつ病 / ストレス / 炎症 / NLRP3 / βヒドロキシ酪酸 / インフラマソーム / 精神疾患 / BHB
Outline of Final Research Achievements

Stress affects the pathophysiology of various mental illnesses including depression. Previous studies have shown that stress can be perceived by an intracellular receptor called NLRP3, resulting in damage to the neurons through inflammation. Therefore, in this study, we developed a novel therapeutic intervention using β-hydroxybutyrate (BHB), which is known to suppress NLRP3 activation. As a result, it was clarified that BHB exerts an anti-inflammatory effect and antidepressant effect by directly acting on the brain, and that BHB oral administration shows antidepressant effect. BHB is expected to be the novel strategy for the treatment of depression.

Academic Significance and Societal Importance of the Research Achievements

国内におけるうつ病患者数は100万人を越えるとされ、社会経済的に大きな問題となっている。うつ病患者に対する治療の中心は抗うつ薬となるが、その薬理学的な作用機序はこの70年間変わっておらず、適切に抗うつ薬を使用したとしても約1/3の患者は改善しないと報告されている。本研究成果はこれまでの抗うつ薬とは異なり、ストレスによって引き起こされる脳内炎症を抑制するという全く新たなメカニズムに立脚したものであり、その効果が証明された意義は大きい。またBHBは生体内因性のケトン体であることから、今後身体的に負荷の少ない、自己治癒力を高めるうつ病治療法が確立されることが期待される。

Report

(3 results)
  • 2019 Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (14 results)

All 2019 2018 2017

All Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results,  Open Access: 1 results) Presentation (10 results) (of which Int'l Joint Research: 5 results)

  • [Journal Article] 精神疾患に対する抗炎症療法の可能性2019

    • Author(s)
      岩田正明
    • Journal Title

      日本医事新報

      Volume: 4942 Pages: 40-47

    • Related Report
      2018 Research-status Report
  • [Journal Article] βヒドロキシ酪酸の抗うつ作用の発見2018

    • Author(s)
      岩田正明
    • Journal Title

      BIO INDUSTRY

      Volume: 35 Pages: 54-61

    • Related Report
      2018 Research-status Report
  • [Journal Article] うつ病の炎症性神経障害仮説2018

    • Author(s)
      岩田正明
    • Journal Title

      日本生物学的精神医学会誌

      Volume: 29 Pages: 163-167

    • NAID

      130007740932

    • Related Report
      2018 Research-status Report
  • [Journal Article] Beta-hydroxybutyrate, an endogenic NLRP3 inflammasome inhibitor, attenuates stress-induced behavioral and inflammatory responses2017

    • Author(s)
      Yamanashi Takehiko、Iwata Masaaki、Kamiya Naho、Tsunetomi Kyohei、Kajitani Naofumi、Wada Nodoka、Iitsuka Takahiro、Yamauchi Takahira、Miura Akihiko、Pu Shenghong、Shirayama Yukihiko、Watanabe Ken、Duman Ronald S.、Kaneko Koichi
    • Journal Title

      Scientific Reports

      Volume: 7 Issue: 1 Pages: 1-11

    • DOI

      10.1038/s41598-017-08055-1

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] Beta-hydroxybutyrate ameliorates depressive like behavior induced by the social defeat stress2018

    • Author(s)
      Tsunetomi K, Iwata M, Yamanashi T, Kajitani N, Nagata M, Miura A, Matsuo R, Nishiguchi T, Duman RS, Kaneko K.
    • Organizer
      Society for Neuroscience
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Intracerebral infusion of beta-hydroxybutyrate, an endogenic NLRP3 inflammasome inhibitor, produces antidepressant like effects in a rodent model of depression.2018

    • Author(s)
      Kajitani N, Iwata M, Yamanashi T, Tsunetomi K, Miura A, Matsuo R, Nishiguchi T, Duman RS, Kaneko K.
    • Organizer
      Society for Neuroscience
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 精神疾患の新しい創薬ターゲットを多角的に考察する:炎症仮説に基づくうつ病の新たな治療の可能性2018

    • Author(s)
      岩田正明
    • Organizer
      第114回日本精神神経学会学術総会
    • Related Report
      2018 Research-status Report
  • [Presentation] 炎症仮説に基づくうつ病の新たな治療の可能性2018

    • Author(s)
      岩田正明
    • Organizer
      第15回日本うつ病学会総会
    • Related Report
      2018 Research-status Report
  • [Presentation] うつ病・疼痛におけるインフラマソーム・ミクログリアを介した病態機構2018

    • Author(s)
      岩田正明
    • Organizer
      第40回日本生物学的精神医学会、第61回日本神経化学会大会
    • Related Report
      2018 Research-status Report
  • [Presentation] Central infusion of beta-hydroxybutyrate produces antidepressant like effects in the a rodent model of depression.2017

    • Author(s)
      Naofumi Kajitani, Masaaki Iwata, Takehiko Yamanashi, Akihiko Miura, Kyouhei Tsunetomi, Saki Fukuda, Ryoichi Matsuo, Tsuyoshi Nishiguchi, Takahira Yamauchi, Ronald S. Duman, Koichi Kaneko
    • Organizer
      Neuroscience 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Oral administration of medium chain triglyceride produces antidepressant effects in rats via the elevation of beta-hydroxybutyrate.2017

    • Author(s)
      Akihiko Miura, Masaaki Iwata, Takehiko Yamanashi, Naofumi Kajitani, Kyouhei Tsunetomi, Saki Fukuda, Ryoichi Matsuo, Tsuyoshi Nishiguchi, Takahira Yamauchi, Ronald S. Duman, Koichi Kaneko
    • Organizer
      Neuroscience 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] Beta-hydroxybutyrate, an endogenous NLRP3 inhibitor, ameliorates the activation of astrocyte in the rat hippocampus caused by immobilization stress.2017

    • Author(s)
      Kyouhei Tsunetomi, Masaaki Iwata, Takehiko Yamanashi, Naofumi Kajitani, Akihiko Miura, Ryoichi Matsuo, Tsuyoshi Nishiguchi, Naho Kamiya, Saki Fukuda, Koichi Kaneko
    • Organizer
      Neuroscience 2017
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research
  • [Presentation] 免疫学的な知見から2017

    • Author(s)
      岩田正明
    • Organizer
      第27回日本臨床精神神経薬理学会
    • Related Report
      2017 Research-status Report
  • [Presentation] うつ病の炎症性神経障害仮説2017

    • Author(s)
      岩田正明
    • Organizer
      第39会日本生物学的精神医学会
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2025-01-30  

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