• Search Research Projects
  • Search Researchers
  • How to Use
  1. Back to previous page

Mechanisms of cortical formation mediated by neuronal repulsive signals

Research Project

Project/Area Number 20K06670
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 44020:Developmental biology-related
Research InstitutionKeio University

Principal Investigator

HIROTA Yuki  慶應義塾大学, 医学部(信濃町), 講師 (00453548)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2022: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2021: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2020: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Keywords大脳皮質 / 神経細胞移動 / リーリンシグナル / ニューロン反発因子 / 大脳皮質形成 / ニューロン移動 / 層構造
Outline of Research at the Start

ニューロン移動停止は大脳皮質層形成実現に貢献する重要なステップであるが、その制御機構には不明な点が多く残されている。応募者は表層付近でのニューロン移動停止が脳の最表層である辺縁帯に存在する複数のニューロン反発因子により制御されることを見出した。本研究ではニューロン反発因子FLRT2とCSPGによるニューロン移動制御機構を明らかにし、大脳皮質層形成メカニズムの新しい局面の理解を目指す。

Outline of Final Research Achievements

Accurate neuronal positioning is essential for proper functioning of the neural network. The cessation of neuronal migration during cortical formation is an important step that contributes to the characteristic pattern of layer formation. In this study, we focused on the abundant expression of the Reelin receptor VLDLR in neurons at the time of migration termination during cortical formation and found that Reelin signaling is required for neuronal migration arrest. Furthermore, we found that cell adhesion molecules are localized to neurites by the action of neural repulsive factor and Reelin signaling in neurons at the time of migration arrest, leading to the discovery of a signal that has an important function in the process of migration arrest.

Academic Significance and Societal Importance of the Research Achievements

大脳皮質形成において、神経細胞移動停止は後続の神経細胞を最表層に送り込むことによって層形成パターンを完成させる重要なプロセスであり、本研究ではこのプロセスにおけるリーリンシグナルと神経反発因子による協調的な制御機構を明らかにした。また、大脳皮質層構造に異常が生じると統合失調症や自閉症スペクトラム障害等の精神神経疾患の発症リスクが高まることが知られていることから、本研究で得られた成果は将来的にはこれらの疾患の病態解明にも寄与できるものである。

Report

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

    (19 results)

All 2023 2022 2021 2020 Other

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

  • [Journal Article] A Unique “Reversed” Migration of Neurons in the Developing Claustrum2023

    • Author(s)
      Oshima Kota、Yoshinaga Satoshi、Kitazawa Ayako、Hirota Yuki、Nakajima Kazunori、Kubo Ken-ichiro
    • Journal Title

      The Journal of Neuroscience

      Volume: 43 Issue: 5 Pages: 693-708

    • DOI

      10.1523/jneurosci.0704-22.2022

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Heterozygous Dab1 null mutation disrupts neocortical and hippocampal development.2023

    • Author(s)
      Honda T, Hirota Y, Nakajima K.
    • Journal Title

      eNeuro

      Volume: 10(4) Issue: 4 Pages: 0433-22

    • DOI

      10.1523/eneuro.0433-22.2023

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] TPT1 Supports Proliferation of Neural Stem/Progenitor Cells and Brain Tumor Initiating Cells Regulated by Macrophage Migration Inhibitory Factor (MIF)2022

    • Author(s)
      Morimoto y, Tokumitsu A, . , Shigeki Ohta
    • Journal Title

      Neurochem Res.

      Volume: 47(9) Issue: 9 Pages: 2741-2756

    • DOI

      10.1007/s11064-022-03629-6

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Erratic and blood vessel-guided migration of astrocyte progenitors in the cerebral cortex2022

    • Author(s)
      Tabata Hidenori、Sasaki Megumi、Agetsuma Masakazu、Sano Hitomi、Hirota Yuki、Miyajima Michio、Hayashi Kanehiro、Honda Takao、Nishikawa Masashi、Inaguma Yutaka、Ito Hidenori、Takebayashi Hirohide、Ema Masatsugu、Ikenaka Kazuhiro、Nabekura Junichi、Nagata Koh-ichi、Nakajima Kazunori
    • Journal Title

      Nature Communications

      Volume: 13 Issue: 1 Pages: 6571-6571

    • DOI

      10.1038/s41467-022-34184-x

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Dysfunction of the proteoglycan Tsukushi causes hydrocephalus through altered neurogenesis in the subventricular zone in mice2021

    • Author(s)
      Ito Naofumi、(24/28)
    • Journal Title

      Science Translational Medicine

      Volume: 13 Issue: 587 Pages: 7896-7896

    • DOI

      10.1126/scitranslmed.aay7896

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Editorial: The Extracellular Environment in Controlling Neuronal Migration During Neocortical Development.2021

    • Author(s)
      Hirota, Y., Ohtaka-Maruyama, C., Borrell V.
    • Journal Title

      Front. Cell Dev. Biol.

      Volume: 9:673825

    • DOI

      10.3389/fcell.2021.673825

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] VLDLR is not essential for Reelin-induced neuronal aggregation but suppresses neuronal invasion into the marginal zone.2020

    • Author(s)
      Hirota, Y. and Nakajima, K.
    • Journal Title

      Development

      Volume: dev189936 Issue: 12

    • DOI

      10.1242/dev.189936

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Reelin-Nrp1 interaction regulates neocortical dendrite development in a context-specific manner.2020

    • Author(s)
      Kohno, T., Ishii, K., Hirota, Y., Honda, T., Makino, M., Kawasaki, T., Nakajima, K., Hattori, M.
    • Journal Title

      J. Neurosci.

      Volume: 40 Issue: 43 Pages: 8248-8261

    • DOI

      10.1523/jneurosci.1907-20.2020

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Cadherin-6 regulates neuronal migration during neocortical development.2022

    • Author(s)
      廣田ゆき, 齋藤里香穂、佐野ひとみ、廣田ゆき、仲嶋一範.
    • Organizer
      第45回日本神経科学大会・第64回日本神経化学会大会・第32回日本神経回路学会大会合同大会 (Neuro2022)
    • Related Report
      2022 Annual Research Report
  • [Presentation] Dab1はプルキンエ細胞に発現し生後小脳の細胞配置と葉形成を制御する2022

    • Author(s)
      笠井拓登、本田岳夫、廣田ゆき、仲嶋一範.
    • Organizer
      第45回日本神経科学大会・第64回日本神経化学会大会・第32回日本神経回路学会大会合同大会 (Neuro2022)
    • Related Report
      2022 Annual Research Report
  • [Presentation] Dab1のハプロ不全は大脳新皮質Layer1厚減少と尾側海馬CA1錐体細胞層の分離を引き起こす2022

    • Author(s)
      本田岳夫、廣田ゆき、仲嶋一範
    • Organizer
      第45回日本神経科学大会・第64回日本神経化学会大会・第32回日本神経回路学会大会合同大会 (Neuro2022)
    • Related Report
      2022 Annual Research Report
  • [Presentation] Cadherin-6 controls radial migration of neurons during neocortical development.2022

    • Author(s)
      Yuki Hirota, Rikaho Saito, Takao Honda, Hitomi Sano, and Kazunori Nakajima.
    • Organizer
      第45回日本分子生物学会年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] MIFにより制御されるTPT1は神経前駆・幹細胞および脳腫瘍幹細胞の増殖を促進する.2022

    • Author(s)
      森本佑紀奈、徳光綾子、曽根岳史、廣田ゆき、田村亮太、坂本鮎菜、仲嶋一範、戸田正博、河上裕、岡野栄之、大多茂樹.
    • Organizer
      第45回日本分子生物学会年会
    • Related Report
      2022 Annual Research Report
  • [Presentation] Elucidation of migration profiles of claustral neurons during brain development.2022

    • Author(s)
      Oshima K, Yoshinaga S, Kitazawa A, Hirota Y, Nakajima K, Kubo K.
    • Organizer
      Society for Neuroscience, Neuroscience 2022 meeting
    • Related Report
      2022 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 解剖学教育と大脳皮質発生研究2022

    • Author(s)
      廣田ゆき
    • Organizer
      第127回日本解剖学会総会・全国学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] マウスの大脳新皮質神経細胞移動に関与するカドヘリンの検索2021

    • Author(s)
      齋藤里香穂、野﨑恵太、佐野ひとみ、廣田ゆき、仲嶋一範
    • Organizer
      第64回日本神経化学会大会
    • Related Report
      2021 Research-status Report
  • [Presentation] Mechanisms of the suppression of neuronal invasion into the marginal zone during layer formation of the mouse neocortex.2021

    • Author(s)
      廣田ゆき、齋藤里香穂、佐野ひとみ、仲嶋一範.
    • Organizer
      第126回日本解剖学会総会・全国学術集会・第98回日本生理学会大会合同大会
    • Related Report
      2020 Research-status Report
  • [Presentation] VLDLR controls the positioning of pyramidal neurons by suppressing neuronal invasion into the marginal zone, rather than by promoting neuronal aggregation, during neocortical development.2020

    • Author(s)
      廣田ゆき, 仲嶋一範.
    • Organizer
      第63回日本神経化学会大会合同大会
    • Related Report
      2020 Research-status Report
  • [Remarks] 慶應義塾大学医学部 解剖学教室仲嶋研究室

    • URL

      https://www.nakajimalab.com/achievements

    • Related Report
      2022 Annual Research Report

URL: 

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

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi