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

Visualization of the spatial remodeling of cortical neurons during postnatal module formation

Research Project

Project/Area Number 19K16281
Research Category

Grant-in-Aid for Early-Career Scientists

Allocation TypeMulti-year Fund
Review Section Basic Section 46020:Anatomy and histopathology of nervous system-related
Research InstitutionNational Institute of Genetics

Principal Investigator

Nakagawa Naoki  国立遺伝学研究所, 遺伝形質研究系, 助教 (30835426)

Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2021)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2020: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Fiscal Year 2019: ¥2,340,000 (Direct Cost: ¥1,800,000、Indirect Cost: ¥540,000)
Keywords神経科学 / 神経回路形成 / 生体イメージング / 単一細胞動態追跡 / バレル皮質
Outline of Research at the Start

大脳皮質感覚野には刺激応答性の異なる神経回路モジュール(単位回路)が存在し、感覚情報の高分解識別を可能にする。本研究は、マウス体性感覚野にてヒゲ触覚情報処理を担うバレル型神経回路モジュールをモデルとして、感覚情報を受ける大脳皮質第4層神経細胞がモジュールごとにグループ化し、空間的・機能的に独立した単位回路を構築する機構の解明を目指す。生体イメージングによる単一細胞レベルでの細胞動態追跡と神経活動の物理的・遺伝学的操作を組み合わせて、新生児期に神経活動依存的に生じる、神経回路モジュール構築過程を明らかにする。

Outline of Final Research Achievements

Layer 4 neurons in the mammalian sensory neocortex form functional modules for efficient sensory information processing. To understand the dynamics of the spatial remodeling of neurons involved in module formation during the postnatal development, we used the barrel module in the mouse somatosensory barrel cortex as a model. We have developed a long-term in vivo imaging system to track the movement of single layer 4 neurons during module formation in the neonatal mouse brain.

Academic Significance and Societal Importance of the Research Achievements

大脳皮質感覚野における機能的モジュールは、感覚情報の混線を防ぎ、精緻な情報識別を可能にする。モジュールの構築不全や機能障害は、ヒトでの発達障害に伴う感覚失調につながる可能性が示唆されている。本研究で開発した神経細胞動態追跡のための生体イメージング技術は、生後発達期の大脳皮質内で、各神経細胞がそれぞれのモジュールに適切に組み込まれていく仕組みの解明に貢献することが期待される。

Report

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

    (6 results)

All 2021 2020 2019

All Presentation (6 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Presentation] Developmental dynamics of the Golgi apparatus regulate dendritic refinement in the mouse barrel cortex2021

    • Author(s)
      Naoki Nakagawa, Takuji Iwasato
    • Organizer
      第44回 日本神経科学大会
    • Related Report
      2021 Annual Research Report
  • [Presentation] Activity-regulated positioning of the Golgi apparatus facilitates dendritic refinement in the neonatal mouse barrel cortex2021

    • Author(s)
      Naoki Nakagawa
    • Organizer
      Symposium “Circuit Construction in the Mammalian Brain”
    • Related Report
      2021 Annual Research Report
  • [Presentation] ゴルジ体ダイナミクスによる大脳皮質神経細胞の樹状突起精緻化2021

    • Author(s)
      中川直樹
    • Organizer
      第14回 神経発生討論会
    • Related Report
      2020 Research-status Report
  • [Presentation] Long-term in vivo imaging of spatial remodeling of cortical L4 neurons for the barrel module formation2020

    • Author(s)
      Naoki Nakagawa, Shingo Nakazawa, Takuji Iwasato
    • Organizer
      第43回 日本神経科学大会
    • Related Report
      2020 Research-status Report
  • [Presentation] Spatial remodeling and organelle dynamics of L4 neurons during thalamocortical module formation in the mouse barrel cortex2020

    • Author(s)
      Naoki Nakagawa
    • Organizer
      NIG Symposium “Circuit Construction in the Mammalian Brain”
    • Related Report
      2020 Research-status Report
    • Invited
  • [Presentation] Long-term in vivo imaging of neuronal spatial remodeling during the barrel column formation2019

    • Author(s)
      Naoki Nakagawa, Takuji Iwasato
    • Organizer
      New Frontier in Neuroscience 2020
    • Related Report
      2019 Research-status Report
    • Int'l Joint Research

URL: 

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

Information User Guide FAQ News Terms of Use Attribution of KAKENHI

Powered by NII kakenhi