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Molecular mechanisms for spatiotemporal and target specific regulation of neuronal synapse formation

Research Project

Project/Area Number 20H03350
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 46020:Anatomy and histopathology of nervous system-related
Research InstitutionUniversity of Toyama

Principal Investigator

Yoshida Tomoyuki  富山大学, 学術研究部医学系, 准教授 (90372367)

Co-Investigator(Kenkyū-buntansha) 和泉 宏謙  富山大学, 医学部, 技術専門職員 (00377342)
Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,810,000 (Direct Cost: ¥13,700,000、Indirect Cost: ¥4,110,000)
Fiscal Year 2022: ¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2021: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Fiscal Year 2020: ¥7,540,000 (Direct Cost: ¥5,800,000、Indirect Cost: ¥1,740,000)
Keywordsシナプス / シナプスオーガナイザー / マイクロエクソン / 神経発達障害 / シナプス形成 / スプライシング / 標的選別
Outline of Research at the Start

本研究では、神経細胞内における“シナプスオーガナイザーの分子動態”、“シナプスオーガナイザー間の側方抑制機構”、更に“シナプスオーガナイザーと標的選別因子群の共役機構”に注目し、その解析を通して神経細胞内の“適切な場所”に“適切なタイミング”で“適切な相手”とシナプスが形成される制御メカニズムの解明を目指す。本研究から得られる知見は脳神経ネットワーク構築原理の理解、更にはシナプス形成調節の破綻と関連した神経発達障害や精神疾患の創薬標的・治療戦略の提示に繋がることが期待される。

Outline of Final Research Achievements

Protein tyrosine phosphatase δ (PTPδ) is a presynaptic organizer and exists in various splice variants generated by alternative microexons' splicing. Each PTPδ variant is responsible for target-specific synapse formation by binding to different type of postsynaptic ligands. We found that microexon-derived peptides are inserted into the interaction interface with ligand proteins to ensure selective binding and synaptic target specificity. In fact, knock-in mutant mouse strains carrying point mutations in the specific interaction interface to disrupt the selective interaction and balancing mechanism among different types of synapse organizers exhibited excitatory and inhibitory synaptic imbalance and behavioral abnormalities associated with neurodevelopmental disorders, such as autism spectrum disorder and intellectual disability.

Academic Significance and Societal Importance of the Research Achievements

マイクロエクソンは3-27ヌクレオチドの極めて短いエクソンであり、脊椎動物の神経細胞で選択的に利用されることから、その機能に注目が集まっていた。シナプスオーガナイザー遺伝子の持つマイクロエクソン由来ペプチドが中枢シナプス形成時の標的選別に重要な役割を担うことを見出し、マイクロエクソンの新しい機能を提案した点が本研究の学術的意義である。またシナプスオーガナイザー間の競合バランスの変調が神経発達障害の発病の要因となることを示した。神経発達障害の新たな治療・創薬標的として、マイクロエクソン選択機構やシナプスオーガナイザー間の競合機構の重要性を提示した点が本研究の社会的意義である。

Report

(4 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (32 results)

All 2023 2022 2021 2020 Other

All Journal Article (10 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 9 results,  Open Access: 8 results) Presentation (16 results) (of which Int'l Joint Research: 1 results,  Invited: 5 results) Book (1 results) Remarks (5 results)

  • [Journal Article] シナプスオーガナイザーPTPδによるシナプス形成調節の分子機構2023

    • Author(s)
      吉田知之
    • Journal Title

      生体の科学

      Volume: 74 Pages: 8-12

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Neurexins play a crucial role in cerebellar granule cell survival by organizing autocrine machinery for neurotrophins2022

    • Author(s)
      Uemura T, Suzuki-Kouyama E, Kawase S, Kurihara T, Yasumura M, Yoshida T, Fukai S, Yamazaki M, Fei P, Abe M, Watanabe M, Sakimura K, Mishina M, Tabuchi K
    • Journal Title

      Cell Reports

      Volume: 39 Issue: 1 Pages: 110624-110624

    • DOI

      10.1016/j.celrep.2022.110624

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] マイクロエクソンの取捨選択による中枢シナプス形成の調節2022

    • Author(s)
      吉田知之
    • Journal Title

      生化学

      Volume: 96 Pages: 845-851

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed
  • [Journal Article] d-Serine controls epidermal vesicle release via NMDA receptor, allowing tissue migration during the metamorphosis of the chordate <i>Ciona</i>2022

    • Author(s)
      Krasovec Gabriel、Hozumi Akiko、Yoshida Tomoyuki、Obita Takayuki、Hamada Mayuko、Shiraishi Akira、Satake Honoo、Horie Takeo、Mori Hisashi、Sasakura Yasunori
    • Journal Title

      Science Advances

      Volume: 8 Issue: 10 Pages: 1-22

    • DOI

      10.1126/sciadv.abn3264

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] BST1 regulates nicotinamide riboside metabolism via its glycohydrolase and base-exchange activities.2021

    • Author(s)
      Yaku K, Palikhe S, Izumi H, Yoshida T, Hikosaka K, Hayat F, Karim M, Iqbal T, Nitta Y, Sato A, Migaud ME, Ishihara K, Mori H, Nakagawa T
    • Journal Title

      Nature Communications

      Volume: 12 Issue: 1 Pages: 6767-6767

    • DOI

      10.1038/s41467-021-27080-3

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Canonical versus non-canonical transsynaptic signaling of neuroligin 3 tunes development of sociality in mice2021

    • Author(s)
      Yoshida T, Yamagata A, Imai A, Kim J, Izumi H, Nakashima S, Shiroshima T, Maeda A, Iwasawa-Okamoto S, Azechi K, Osaka F, Saitoh T, Maenaka K, Shimada T, Fukata Y, Fukata M, Matsumoto J, Nishijo H, Takao K, Tanaka S, Okabe S, Tabuchi K, Uemura T, Mishina M, Mori H & Fukai S
    • Journal Title

      Nature Communications

      Volume: 12(1) Issue: 1 Pages: 1848-1848

    • DOI

      10.1038/s41467-021-22059-6

    • NAID

      120006996978

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Roles of type IIa receptor protein tyrosine phosphatases as synaptic organizers2020

    • Author(s)
      Shuya Fukai, Tomoyuki Yoshida
    • Journal Title

      FEBS Journal

      Volume: - Issue: 24 Pages: 6913-6926

    • DOI

      10.1111/febs.15666

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Characteristics of internalization of NMDA-type GluRs with antibodies to GluN1 and GluN2B2020

    • Author(s)
      Yukitoshi Takahashi, Shigeko Nishimura, Emiko Takao, Risa Kasai, Kaoru Enokida, Kuniko Ida, Masataka Fukuoka, Takayoshi Koike, Hiroo Omatsu, Tokito Yamaguchi, Shiho Takano, Tomoyuki Yoshida, Hisashi Mori
    • Journal Title

      Journal of Neuroimmunology

      Volume: 349 Pages: 577427-577427

    • DOI

      10.1016/j.jneuroim.2020.577427

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Functional characterization of rare NRXN1 variants identified in autism spectrum disorders and schizophrenia2020

    • Author(s)
      Ishizuka Kanako、Yoshida Tomoyuki、Kawabata Takeshi、Imai Ayako、Mori Hisashi、Kimura Hiroki、Inada Toshiya、Okahisa Yuko、Egawa Jun、Usami Masahide、Kushima Itaru、Morikawa Mako、Okada Takashi、Ikeda Masashi、Branko Aleksic、Mori Daisuke、Someya Toshiyuki、Iwata Nakao、Ozaki Norio
    • Journal Title

      Journal of Neurodevelopmental Disorders

      Volume: 12 Issue: 1 Pages: 25-25

    • DOI

      10.1186/s11689-020-09325-2

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] TBX5 R264K acts as a modifier to develop dilated cardiomyopathy in mice independently of T-box pathway2020

    • Author(s)
      Miyao N., Hata Y., Izumi H., Nagaoka R., Oku Y., Takasaki I., Ishikawa T., Takarada S., Okabe M., Nakaoka H., Ibuki K., Ozawa S., Yoshida T., Hasegawa H., Makita N., Nishida N., Mori H., Ichida F., Hirono K.
    • Journal Title

      PLOS ONE

      Volume: 15 Issue: 4 Pages: 0227393-0227393

    • DOI

      10.1371/journal.pone.0227393

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] 自閉スペクトラム症関連タンパク質 Neuroligin 3 による社会性発達調節の分子機構2022

    • Author(s)
      吉田知之
    • Organizer
      生命科学4プラットフォーム 支援説明会・キックオフシンポジウムシンポジウム
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] PTPδ遺伝子のマイクロエクソン選択機構の解明2022

    • Author(s)
      赤羽 絢夏、今井 彩子、和泉 宏謙、北嶋 悠希、川瀬 修平、森 寿、吉田 知之
    • Organizer
      第40回日本生化学会北陸支部大会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Distinct roles of canonical and non-canonical neuroligin 3 pathways in behavioral regulation2022

    • Author(s)
      Ayako Imai, Hironori Izumi, Yumie Koshidaka, Keizo Takao, Hisashi Mori, Tomoyuki Yoshida
    • Organizer
      NEURO2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] ゲノム編集によるSAM系統での遺伝子改変2022

    • Author(s)
      吉田知之
    • Organizer
      第37回老化促進モデルマウス学会学術大会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Molecular and structural mechanisms of PTPδ-mediated synapse formation2022

    • Author(s)
      Tomoyuki Yoshida
    • Organizer
      ISN-APSN 2022 meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Ptprd遺伝子マイクロエクソンの取捨選択調節が作り出す脳神経回路の設計図2022

    • Author(s)
      吉田知之
    • Organizer
      生理学研究所研究会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 電気刺激を用いたヒトiPS 細胞由来ニューロンによる神経回路形成の促進法の開発2021

    • Author(s)
      北嶋悠希, 今井彩子, 吉田知之, 森寿, 田端俊英
    • Organizer
      第39回日本生化学会北陸支部大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] シナプスオーガナイザーPtpd遺伝子の微小エクソン選択パターンの解析2021

    • Author(s)
      川瀬 修平, 今井彩子, 北嶋悠希, 赤羽絢夏, 田端俊英, 森寿, 吉田知之
    • Organizer
      第39回日本生化学会北陸支部大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] シナプス形成を指標としたグルホシネート曝露による中枢神経系への影響評価2021

    • Author(s)
      和泉宏謙, 出村舞奈, 今井彩子, 吉田知之, 小川良平, 森寿
    • Organizer
      第55回日本実験動物技術者協会総会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Effect of the herbicide glufosinate-ammonium exposure on neural synapse formation2021

    • Author(s)
      Izumi Hironori,Maina Demura,Ayako Imai, Tomoyuki Yoshida, Ryohei Ogawa, Hisashi Mori
    • Organizer
      第4回医薬品毒性機序研究会
    • Related Report
      2021 Annual Research Report
  • [Presentation] 自閉症関連タンパク質 Neuroligin 3 による新規のシナプス誘導経路と社会性調節機構2021

    • Author(s)
      吉田知之
    • Organizer
      生理研究所研究会
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 大脳皮質神経細胞の電気刺激によるPtpd遺伝子の微小エクソン選択調節2020

    • Author(s)
      出村 舞奈, 今井 彩子, 田端 俊英, 森 寿, 田 知之
    • Organizer
      日本生化学会北陸支部第38回大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Structural basis of selective interaction between Iia RPTP and Liprin2020

    • Author(s)
      Atsushi Yamagata, Tomoyuki Yoshida, Shuya Fukai
    • Organizer
      第43回日本神経科学大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Microexon splicing of Ptprd gene controls locomotor activity and social behavior2020

    • Author(s)
      Ayako Tabata-Imai, Mizuki Sendo, Hironori Izumi, Keizo Takao, Hisashi Mori, Tomoyuki Yoshida
    • Organizer
      第43回日本神経科学大会
    • Related Report
      2020 Annual Research Report
  • [Presentation] 大脳皮質神経細胞の電気刺激によるPtprd遺伝子微小エクソンの選択的スプライシング調節2020

    • Author(s)
      出村 舞奈, 今井 彩子, 田端 俊英, 森 寿, 吉田 知之
    • Organizer
      第67回中部日本生理学会
    • Related Report
      2020 Annual Research Report
  • [Presentation] D-serineは脊索動物ホヤの変態時に表皮細胞からの細胞外基質の分泌を制御する2020

    • Author(s)
      Krasovec Gabriel, 保住 暁子, 吉田 知之, 濱田 麻友子, 白石 慧, 佐竹 炎, 堀江 健生, 森 寿, 笹倉 靖徳
    • Organizer
      第43回日本分子生物学会
    • Related Report
      2020 Annual Research Report
  • [Book] シナプス接着タンパク質NLGN3を介した社会性の発達を調節する分子機構2021

    • Author(s)
      吉田知之
    • Total Pages
      5
    • Publisher
      バイオサイエンスとインダストリー
    • Related Report
      2021 Annual Research Report
  • [Remarks] 富山大学生命融合科学教育部ホームページ

    • URL

      https://www.ils.u-toyama.ac.jp

    • Related Report
      2022 Annual Research Report
  • [Remarks] 富山大学学術研究部医学系 分子神経科学講座ホームページ

    • URL

      http://www.med.u-toyama.ac.jp/molneurosci/kousei/pg157.html

    • Related Report
      2022 Annual Research Report
  • [Remarks] 富山大学大学院生命融合科学教育部ホームページ

    • URL

      https://www.ils.u-toyama.ac.jp

    • Related Report
      2021 Annual Research Report
  • [Remarks] 富山大学学術研究部医学系 分子神経科学講座ホームページ

    • URL

      http://www.med.u-toyama.ac.jp/molneurosci/index.html

    • Related Report
      2021 Annual Research Report 2020 Annual Research Report
  • [Remarks] 富山大学大学院生命融合科学教育部ホームページ

    • URL

      https://www.ils.u-toyama.ac.jp/

    • Related Report
      2020 Annual Research Report

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Published: 2020-04-28   Modified: 2024-01-30  

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