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Pathophysiological mechanism of mental disorders associated with dysfunction of synaptic release

Research Project

Project/Area Number 17K08324
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Pharmacology in pharmacy
Research InstitutionOsaka University of Pharmaceutical Sciences

Principal Investigator

Ohno Yukihiro  大阪薬科大学, 薬学部, 教授 (00432534)

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: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2018: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Keywordsシナプス分泌 / シナプス小胞タンパク質2A(SV2A) / 精神障害 / 側坐核 / ドパミン遊離 / GABA遊離 / 統合失調症 / ミスセンス変異 / シナプス小胞タンパク質(SV2A) / マイクロダイアリシス / Fosタンパク質発現 / 驚愕反応試験 / プレパルス・インヒビション / 幼若期隔離飼育ストレス / 情動障害 / 攻撃行動 / シナプス小胞蛋白SV2A / 精神疾患 / メタンフェタミン
Outline of Final Research Achievements

To clarify the influence of synaptic release dysfunction on the onset susceptibility of mental disorders, brain function was analyzed using the rat model carrying a missense mutation in the gene Sv2a encoding synaptic vesicle protein 2A. It was shown that Sv2a mutant rats exhibited hypersensitivity to methamphetamine,impairments of prepulse inhibition in acoustic startle responses, and exaggerated aggressive behaviros induced by juvenile isolation-stress. Sv2a mutant rats also showed neural hyperactivities and enhanced synaptic release of dopamine in the nucleus accumbens. Moreover, the enhanced dopamine release by the Sv2a mutation was found to be due to dysfunction of GABA release from GABA interneurons in the nucleus accumbens.This research provides important information on pathophysiological mechanisms of mental disorders associated with dysfunction of synaptic release.

Academic Significance and Societal Importance of the Research Achievements

本研究により、神経伝達物質の開口分泌機構の障害が精神疾患の発症脆弱性に大きな影響を及ぼすことが明らかとなった。特に、開口分泌機構を促進的に調節するシナプス小胞タンパク質2A(SV2A)が大脳辺縁系側坐核においてGABAおよびドパミンのシナプス遊離を制御しており、SV2Aの機能障害が統合失調症など精神障害の発症を高める可能性が示唆された。近年、ヒトにおいてもSV2A遺伝子の変異がてんかんや精神障害を誘発することが報告されており、本研究成果はシナプス分泌障害に起因する精神疾患の病態メカニズムに関する重要な情報を提供するもので、その社会的意義は非常に大きいと考えられる。

Report

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

    (35 results)

All 2019 2018 2017 Other

All Journal Article (10 results) (of which Peer Reviewed: 10 results,  Open Access: 9 results) Presentation (18 results) (of which Int'l Joint Research: 5 results,  Invited: 4 results) Book (2 results) Remarks (5 results)

  • [Journal Article] Down-Regulation of Astrocytic Kir4.1 Channels during the Audiogenic Epileptogenesis in Leucine-Rich Glioma-Inactivated 1 (Lgi1) Mutant Rats.2019

    • Author(s)
      Masato Kinboshi , Saki Shimizu, Tomoji Mashimo, Tadao Serikawa, Hidefumi Ito, Akio Ikeda, Ryosuke Takahashi, Yukihiro Ohno
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 20 Issue: 5 Pages: 001-015

    • DOI

      10.3390/ijms20051013

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Mechanism Underlying Organophosphate Paraoxon-Induced Kinetic Tremor.2019

    • Author(s)
      Iha HA, Kunisawa N, Shimizu S, Onishi M, Nomura Y, Matsubara N, Iwai C, Ogawa M, Hashimura M, Sato K, Kato M, Ohno Y.
    • Journal Title

      Neurotox Res.

      Volume: 35 Issue: 3 Pages: 575-583

    • DOI

      10.1007/s12640-019-0007-7

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Antipsychotic Treatment of Behavioral and Psychological Symptoms of Dementia (BPSD): Management of Extrapyramidal Side Effects2019

    • Author(s)
      Y. Ohno, N. Kunisawa, S. Shimizu
    • Journal Title

      Front. Pharmacol.

      Volume: 10

    • DOI

      10.3389/fphar.2019.01045

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Astrocytic Kir4.1 potassium channels as a novel therapeutic target for epilepsy and mood disorders.2018

    • Author(s)
      Y. Ohno
    • Journal Title

      Neural Regeneration Research

      Volume: 13 Issue: 4 Pages: 651-652

    • DOI

      10.4103/1673-5374.230355

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Pharmacological characterization of nicotine-induced tremor: Responses to anti-tremor and anti-epileptic agents.2018

    • Author(s)
      N. Kunisawa, S. Shimizu, M. Kato, H. A. Iha, C. Iwai, M. Hashimura, M. Ogawa, S. Kawaji, K. Kawakita, K. Abe, Y. Ohno
    • Journal Title

      Journal of Pharmacological Sciences

      Volume: 137 Issue: 2 Pages: 162-169

    • DOI

      10.1016/j.jphs.2018.05.007

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Antiepileptic drugs elevate astrocytic Kir4.1 expression in the rat limbic region.2018

    • Author(s)
      T. Mukai, M. Kinboshi, Y. Nagao, S. Shimizu, A. Ono, Y. Sakagami, A. Okuda, M. Fujimoto, H. Ito, A. Ikeda, Y. Ohno
    • Journal Title

      Frontiers in Pharmacology

      Volume: 9 Pages: 845-845

    • DOI

      10.3389/fphar.2018.00845

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Inwardly rectifying potassium channel Kir4.1 as a novel modulator of BDNF expression in astrocytes.2018

    • Author(s)
      Y. Ohno, M. Kinboshi, S. Shimizu
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 19 Issue: 11 Pages: 3313-3313

    • DOI

      10.3390/ijms19113313

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Function of synaptic vesicle protein 2A (SV2A) as a novel therapeutic target for epilepsy2018

    • Author(s)
      徳留健太郎、清水佐紀、芹川忠夫、大野行弘
    • Journal Title

      Folia Pharmacologica Japonica

      Volume: 152 Issue: 6 Pages: 275-280

    • DOI

      10.1254/fpj.152.275

    • NAID

      130007528441

    • ISSN
      0015-5691, 1347-8397
    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Inhibition of Inwardly Rectifying Potassium (Kir) 4.1 Channels Facilitates Brain-Derived Neurotrophic Factor (BDNF) Expression in Astrocytes2017

    • Author(s)
      Kinboshi Masato、Mukai Takahiro、Nagao Yuki、Matsuba Yusuke、Tsuji Yoshimi、Tanaka Shiho、Tokudome Kentaro、Shimizu Saki、Ito Hidefumi、Ikeda Akio、Inanobe Atsushi、Kurachi Yoshihisa、Inoue Seiji、Ohno Yukihiro
    • Journal Title

      Frontiers in Molecular Neuroscience

      Volume: 10 Pages: 408-408

    • DOI

      10.3389/fnmol.2017.00408

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Serotonergic modulation of nicotine-induced kinetic tremor in mice2017

    • Author(s)
      Kunisawa Naofumi、Iha Higor A.、Nomura Yuji、Onishi Misaki、Matsubara Nami、Shimizu Saki、Ohno Yukihiro
    • Journal Title

      Journal of Pharmacological Sciences

      Volume: 134 Issue: 2 Pages: 131-138

    • DOI

      10.1016/j.jphs.2017.06.001

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Mechanism of organophosphate paraoxon-induced kinetic tremor in mice2019

    • Author(s)
      Yukihiro Ohno, Chihiro Iwai, Higor Alves Iha, Naofumi Kunisawa, Saki Shimizu, Masaki Kato, Mizuki Ogawa, Mai Hashimura
    • Organizer
      第92回日本薬理学会年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Mechanisms underlying the pathogenesis and treatment of neurological disorders: Extrapyramidal motor disorders2019

    • Author(s)
      Yukihiro Ohno, Saki Shimizu
    • Organizer
      第92回日本薬理学会年会(日本薬理学会・日本毒性学会共催シンポジウム)
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] てんかんと精神機能調節におけるSV2Aの役割2019

    • Author(s)
      大野行弘
    • Organizer
      第3回Kinki Epilepsy Summit
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Inferior olive is a causative site of the organophosphate paraoxon-induced kinetic tremor2019

    • Author(s)
      Higor Alves Iha, Naofumi Kunisawa, Masaki Kato, Saki Shimizu, Misaki Onishi, Yuji Nomura, Nami Matsubara, Chihiro Iwai, Mizuki Ogawa, Aoi Iwamoto, Rina Machida, Kazuaki Sato, Yukihiro Ohno
    • Organizer
      第46回日本毒性学会学術年会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Glutamate and GABA release in audiogenic seizure-susceptible, Lgi1 mutant rats2019

    • Author(s)
      Masato Kinboshi, Kazuaki Sato, Saki Shimizu, Tadao Serikawa, Hidefumi Ito, Akio Ikeda, Yukihiro Ohno
    • Organizer
      第60回日本神経学会学術大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Dysfunction of Sv2A elicites dopaminergic hyperactivity via interacting accumbal GABAergic neurons in rats2019

    • Author(s)
      Yukihiro Ohno, Kentaro Tokudome, Ayako Ikari, Yumiko Iguchi, Takafumi Sugahara, Naofumi Kunisawa, Masaki Kato, Tadao Serikawa, Saki Shimizu
    • Organizer
      The 2019 International society of neurochemistry (ISN)-American society of neurochemistry (ASN) Meeting
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Evaluation of glutamate and GABA release in Lgi1 mutant rats susceptible to audiogenic seizures2019

    • Author(s)
      Masato Kinboshi, Kazuaki Sato, Saki Shimizu, Tadao Serikawa, Hidefumi Ito, Akio Ikeda, Yukihiro Ohno
    • Organizer
      第53回日本てんかん学会学術集会
    • Related Report
      2019 Annual Research Report
  • [Presentation] Pharmacological actions of antiepileptic drugs: From first generation to future generation drugs2019

    • Author(s)
      Yukihiro Ohno
    • Organizer
      第53回日本てんかん学会学術集会(シンポジウム)
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] 幼弱期隔離飼育ストレスによる社会性行動へ及ぼすシナプス小胞蛋白質SV2Aの影響2018

    • Author(s)
      清水佐紀、徳留健太郎、大西奏子、嶋田梓、田中敏博、芹川忠夫、大野行弘
    • Organizer
      日本薬学会第138年会
    • Related Report
      2018 Research-status Report
  • [Presentation] Synaptic vesicle protein 2A (SV2A) regulates the susceptibility to methamphetamine-induced hyperactivity in rats2018

    • Author(s)
      Saki Shimizu, Kentaro Tokudome, Ayako Ikari, Yumiko Iguchi, Takafumi Sugahara, Tadao Serikawa, Yukihiro Ohno
    • Organizer
      The International College of Neuropsychopharmacology 2018 (CINP2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Susceptibility to methamphetamine-induced hyperactivity in synaptic vesicle protein 2A (SV2A)-mutant rats2018

    • Author(s)
      Saki Shimizu, Kentaro Tokudome, Ayako Ikari, Yumiko Iguchi, Takafumi Sugahara, Tadao Serikawa, Yukihiro Ohno
    • Organizer
      第18回国際薬理学・臨床薬理学会議 (WCP2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] Susceptibility to juvenile isolation stress-induced aggressive behaviors in synaptic vesicle protein 2A (SV2A)-mutant rats2018

    • Author(s)
      Kentaro Tokudome, Saki Shimizu, Kanako Ohnishi, Azusa Shimada, Toshihiro Tanaka, Tadao Serikawa, Yukihiro Ohno
    • Organizer
      第18回国際薬理学・臨床薬理学会議 (WCP2018)
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research
  • [Presentation] 発作原性、ニューロン、グリア2018

    • Author(s)
      大野行弘
    • Organizer
      第52回日本てんかん学会学術集会 シンポジウム(グルタミン酸とAMPA受容体~基礎と臨床のtranslatability~)
    • Related Report
      2018 Research-status Report
  • [Presentation] 幼弱期隔離飼育ストレスによる社会性行動へ及ぼすシナプス小胞蛋白質SV2Aの影響2018

    • Author(s)
      清水佐紀、徳留健太郎、大西奏子、嶋田 梓、田中敏博、芹川忠夫、大野行弘
    • Organizer
      日本薬学会第138年会
    • Related Report
      2017 Research-status Report
  • [Presentation] Role of synaptic vesicle glycoprotein 2A (SV2A) in modulating epileptogenesis.2017

    • Author(s)
      Yukihiro Ohno
    • Organizer
      5th Asian College of Neuropsychopharmacology
    • Related Report
      2017 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] シナプス小胞蛋白質SV2A変異ラットにおける幼若期隔離飼育ストレス誘発行動の発現変化2017

    • Author(s)
      大西奏子、嶋田 梓、田中敏博、徳留健太郎、清水佐紀、芹川忠夫、大野行弘
    • Organizer
      次世代を担う創薬・医療薬理シンポジウム2017
    • Related Report
      2017 Research-status Report
  • [Presentation] シナプス小胞蛋白質SV2Aの機能低下は幼若期隔離飼育ストレスによる情動障害を悪化させる2017

    • Author(s)
      田中敏博、大西奏子、嶋田 梓、徳留健太郎、清水佐紀、芹川忠夫、大野行弘
    • Organizer
      第67回日本薬学会近畿支部総会・大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 若年期隔離ストレス負荷による社会性行動変化に対するシナプス小胞蛋白質SV2A遺伝子変異の影響2017

    • Author(s)
      徳留健太郎、大西奏子、嶋田 梓、田中敏博、清水佐紀、芹川忠夫、大野行弘
    • Organizer
      第132回日本薬理学会近畿部会
    • Related Report
      2017 Research-status Report
  • [Book] Serotonin:The mediator that spans evolution2019

    • Author(s)
      Y. Ohno
    • Total Pages
      430
    • Publisher
      Elsevier
    • ISBN
      9780128000502
    • Related Report
      2019 Annual Research Report
  • [Book] Serotonin receptors as the therapeutic target for central nervous system disorders. In "Serotonin: The Mediator That Spans Evolution" edited by P.M. Pilowsky2019

    • Author(s)
      Yukihiro Ohno
    • Total Pages
      430
    • Publisher
      Elsevier
    • ISBN
      9780128000502
    • Related Report
      2018 Research-status Report
  • [Remarks] 大阪薬科大学薬品作用解析学研究室

    • URL

      https://www.oups.ac.jp/academics/lab/daa.html

    • Related Report
      2019 Annual Research Report
  • [Remarks] Researchmap

    • URL

      https://researchmap.jp/read0156131

    • Related Report
      2019 Annual Research Report
  • [Remarks] 大阪薬科大学 薬品作用解析学研究室

    • URL

      http://www.oups.ac.jp/kenkyu/kenkyuushitu/yakuhinsayou.html

    • Related Report
      2018 Research-status Report
  • [Remarks] Researchmap

    • URL

      https://researchmap.jp/read0156131/

    • Related Report
      2018 Research-status Report
  • [Remarks] 大阪薬科大学 薬品作用解析学研究室

    • URL

      http://www.oups.ac.jp/kenkyu/kenkyuushitu/yakuhinsayou.html

    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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