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Mechanism underlying the regulation of diffuse transmission by LRR transmembrane proteins

Research Project

Project/Area Number 19H03327
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 46010:Neuroscience-general-related
Research InstitutionNagasaki University

Principal Investigator

Aruga Jun  長崎大学, 医歯薬学総合研究科(医学系), 教授 (10232076)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2021: ¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2020: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2019: ¥9,490,000 (Direct Cost: ¥7,300,000、Indirect Cost: ¥2,190,000)
Keywords拡散性伝達 / シナプス接着分子 / モノアミン / 発達障害 / 精神神経疾患 / 疾患モデル動物 / 神経疾患
Outline of Research at the Start

本研究では脳の拡散性伝達とLRR膜貫通タンパク質との関係を明らかにする。これまでに多くのLRR膜貫通タンパク質が一対一の関係で情報が伝達されるシナプス性情報伝達の成り立ちにシナプスオーガナイザーとして、関わることが示された。しかし、一対多の関係で情報が伝わる拡散性伝達における役割は不明である。拡散性伝達はノルアドレナリン、セロトニンなどを含む脳のモノアミン作動性神経系の伝達様式であり、統合失調症、うつ病、ADHD、不安障害、パーキンソン病など、多くの神経疾患の治療標的になっている。申請者らが独自に開発したLRR膜貫通タンパク質疾患モデル動物群を対象にした多角的な解析を行う。

Outline of Final Research Achievements

Many therapeutics for schizophirenia, bipolar disorder, attention-deficit hyperactivity disorder, obsessive-compulsive disorder, and axiety disorder target monoaminergic neurotransmission such as dopamine, noradrenaline, and serotonin. The pathophysiology of these neuropsychiatric disorders may be closely related to the monoaminergic nervous system. We hypothesized roles of a family of Leucine-rich repeat (LRR)-containing transmembrane proteins in the regulation of the monoaminergic transmission. Based on the hypothesis, we carried out a study to reveal how the LRR transmembrane proteins control the development and function of monoaminergic nervous system.

Academic Significance and Societal Importance of the Research Achievements

各種神経疾患に関連する遺伝性因子のメタ解析が行われ、ADHD、双極性障害、統合失調症、不安障害、トゥレット障害、強迫障害には共通の遺伝因子が存在することが報告された。この結果はこれらの疾患には部分的に重なる疾患中核機構が存在することを示唆しており、その中にLRR膜タンパク質遺伝子が含まれる可能性もある。この研究はこれらの神経疾患の病態のより良い理解、治療方法の改善につながる知見を提供することができる。また、シナプス性伝達に較べて、十分に理解が進んでいない拡散性伝達(容量性伝達)の分子機構が理解できることは神経生物学の進展に大きく貢献する。

Report

(4 results)
  • 2021 Annual Research Report   Final Research Report ( PDF )
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (13 results)

All 2022 2021 2019 Other

All Int'l Joint Research (3 results) Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 4 results) Presentation (4 results) (of which Int'l Joint Research: 1 results) Remarks (1 results)

  • [Int'l Joint Research] Biological Research Centre(ハンガリー)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] University of College London(英国)

    • Related Report
      2021 Annual Research Report
  • [Int'l Joint Research] Freiburg University(ドイツ)

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Lrtm2 controls protein sorting in the striatal projection system and its deficiency causes disturbances in motor responses and monoamine dynamics2022

    • Author(s)
      Misato Ichise, Kazuto Sakoori, Kei-ichi Katayama, Naoko Morimura, Kazuyuki Yamada, Hiroki Ozawa, Hayato Matsunaga, Minoru Hatayama, Jun Aruga
    • Journal Title

      Frontiers in Molecular Neuroscience

      Volume: - Pages: 856315-856315

    • DOI

      10.3389/fnmol.2022.856315

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Characterization of a Primate Blood-Brain Barrier Co-Culture Model Prepared from Primary Brain Endothelial Cells, Pericytes and Astrocytes2021

    • Author(s)
      Watanabe Daisuke、Nakagawa Shinsuke、Morofuji Yoichi、Toth Andrea E.、Vastag Monika、Aruga Jun、Niwa Masami、Deli Maria A.
    • Journal Title

      Pharmaceutics

      Volume: 13 Issue: 9 Pages: 1484-1484

    • DOI

      10.3390/pharmaceutics13091484

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Trans-Synaptic Regulation of Metabotropic Glutamate Receptors by Elfn Proteins in Health and Disease2021

    • Author(s)
      Matsunaga H, Aruga J
    • Journal Title

      Front Neural Circuits

      Volume: 15 Pages: 634875-634875

    • DOI

      10.3389/fncir.2021.634875

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dysregulation of erythropoiesis and altered erythroblastic NMDA receptor-mediated calcium influx in Lrfn2-deficient mice2021

    • Author(s)
      Maekawa R, Muto H, Hatayama M, Aruga J
    • Journal Title

      PLoS One

      Volume: 16 Issue: 1 Pages: e0245624-e0245624

    • DOI

      10.1371/journal.pone.0245624

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Sphingosine 1-phosphate signaling is involved in impaired blood-brain barrier function in ischemia-reperfusion injury.2019

    • Author(s)
      Nakagawa S, Aruga J.
    • Journal Title

      Mol Neurobiol

      Volume: 57 Issue: 3 Pages: 1594-1606

    • DOI

      10.1007/s12035-019-01844-x

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Presentation] Regulation of receptor chaperone molecule RTP4 in neuronal cells by opioid receptor activation2021

    • Author(s)
      Fujita W, Aruga J
    • Organizer
      第94回日本薬理学会年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Role of Lrtm2 in striatal medium spiny neurons2019

    • Author(s)
      Ichise M, Hatayama M, Aruga J
    • Organizer
      The 42nd Annual Meeting of the Japan Neuroscience Society
    • Related Report
      2019 Annual Research Report
  • [Presentation] Slitrk1 regulates endocytosis in PC12 cells2019

    • Author(s)
      Hatayama M, Katayama K, Aruga J
    • Organizer
      The 42nd Annual Meeting of the Japan Neuroscience Society
    • Related Report
      2019 Annual Research Report
  • [Presentation] Autism-like behaviors and enhanced memory formation and synaptic plasticity in Lrfn2/SALM1-deficient mice.2019

    • Author(s)
      Morimura N, Yasuda H, Katayama K, Hatayama M, Yoshikawa T, Aruga J.
    • Organizer
      10th IBRO World Congress of Neuroscience
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Remarks] 「シナプス接着分子」の赤血球を産み出す細胞における役割

    • URL

      https://www.med.nagasaki-u.ac.jp/phrmch1/recent12.html

    • Related Report
      2020 Annual Research Report

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Published: 2019-04-18   Modified: 2023-01-30  

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