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Experience-dependent mechanisms for morphological and functional specification of cortical interneurons

Research Project

Project/Area Number 19H03322
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 InstitutionNiigata University

Principal Investigator

Sugiyama Sayaka  新潟大学, 医歯学系, 教授 (10360570)

Co-Investigator(Kenkyū-buntansha) 奥田 修二郎  新潟大学, 医歯学系, 教授 (00512310)
高田 美絵子 (森島美絵子)  東京慈恵会医科大学, 医学部, 講師 (30435531)
Project Period (FY) 2019-04-01 – 2022-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥17,290,000 (Direct Cost: ¥13,300,000、Indirect Cost: ¥3,990,000)
Fiscal Year 2021: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2020: ¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2019: ¥6,240,000 (Direct Cost: ¥4,800,000、Indirect Cost: ¥1,440,000)
Keywords抑制性ニューロン / 発達障害 / 臨界期 / 視覚弁別課題 / 細胞骨格因子 / 樹状突起 / 視覚野 / 神経回路形成 / ホメオ蛋白質 / 視覚経験 / 樹状突起形成
Outline of Research at the Start

臨界期は、子どもの経験に応じて神経回路を集中的に形成する、脳の成長期である。臨界期に作られた回路は、生涯、個性として保たれる傾向がある。そのため、臨界期異常による回路の誤配線は、将来、精神疾患の一因になることが示唆されている。申請者らは、生後の経験による大脳抑制性ニューロンの成熟が、臨界期の回路形成を促すことを報告してきた。抑制性ニューロンは形態や機能により十種類以上の細胞種に分類されるが、多様な細胞種が分化するメカニズムは分かっておらず、さらに分化に偏りが生じた際の弊害も明らかになっていない。そこで本研究では、経験による抑制性ニューロンの形態形成と機能形成のメカニズムについて明らかにする。

Outline of Final Research Achievements

The young brain experiences a unique window 'critical period' when neuronal circuitry is intensively remodeled based on individual experience. Since impairment of the critical periods is observed in developmental disorders and mental illnesses, it is priority issue to clarify the mechanisms. Here, we showed that unbalanced development in cortical interneuron subtypes induced the uneven development (with impairment of critical period and improvement of visual discrimination) as in autism spectrum disorders. We further identified experience-dependent molecular mechanisms to specify the interneuron subtypes and demonstrated that distinct dendritic morphology and function depending on subtypes tightly linked to sensory perception in behaving animals. Therefore, individual experience increased the heterogeneity of intracortical circuits to enable functional individuality.

Academic Significance and Societal Importance of the Research Achievements

本研究では、経験により活性化される新規遺伝子が、抑制性ニューロンの分化を最終的に決定し、大脳の回路機能を左右することを示した。これまでに、抑制性ニューロンの種類が生後に変化するという報告はなく、本結果は国内外に大きなインパクトを与えると予想される。一連の成果は、増加する発達障害や、社会不安に呼応して増大する精神疾患に対して、疾患の背景にある遺伝子や生活環境への理解を促し、症状を緩和するための治療法の開発につながると期待される。

Report

(4 results)
  • 2022 Final Research Report ( PDF )
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • 2019 Annual Research Report
  • Research Products

    (25 results)

All 2022 2021 2020 2019 Other

All Int'l Joint Research (2 results) Journal Article (4 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (16 results) (of which Int'l Joint Research: 12 results,  Invited: 3 results) Remarks (3 results)

  • [Int'l Joint Research] Newcastle University(英国)

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

    • Related Report
      2020 Annual Research Report
  • [Journal Article] 子どもの臨界期と回路の個性化2022

    • Author(s)
      杉山清佳
    • Journal Title

      新潟県医師会報

      Volume: 873 Pages: 2-7

    • Related Report
      2021 Annual Research Report
  • [Journal Article] Coactosin Promotes F-Actin Protrusion in Growth Cones Under Cofilin-Related Signaling Pathway2021

    • Author(s)
      Hou Xubin、Nozumi Motohiro、Nakamura Harukazu、Igarashi Michihiro、Sugiyama Sayaka
    • Journal Title

      Frontiers in Cell and Developmental Biology

      Volume: 9 Pages: 660349-660349

    • DOI

      10.3389/fcell.2021.660349

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Single-Cell Visualization Deep in Brain Structures by Gene Transfer2020

    • Author(s)
      Sugiyama Sayaka、Sugi Junko、Iijima Tomoya、Hou Xubin
    • Journal Title

      Frontiers in Neural Circuits

      Volume: 14

    • DOI

      10.3389/fncir.2020.586043

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Reciprocal connectivity between secondary auditory cortical field and amygdala in mice.2019

    • Author(s)
      Tsukano H, Hou X, Horie M, Kitaura H, Nishio N, Hishida R, Takahashi K, Kakita A, Takebayashi H, Sugiyama S, Shibuki K
    • Journal Title

      Sci Rep.

      Volume: 9 Issue: 1 Pages: 19610-19610

    • DOI

      10.1038/s41598-019-56092-9

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Presentation] Visual experience specifies primary dendrites in cortical interneurons during the critical period2022

    • Author(s)
      Sayaka Sugiyama
    • Organizer
      The 5th Annual Spring Meeting on Neurogenesis
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Dendritic transdifferentiation of inhibitory neurons improved visual discrimination2022

    • Author(s)
      Hou X, Kitayama E, Sakimura K and Sugiyama S
    • Organizer
      The 45th Annual Meeting of the Japan Neuroscience Society
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Visual experience specifies primary dendrites in cortical interneurons for visual perception2022

    • Author(s)
      Hou X, Kitayama E, Sakimura K and Sugiyama S
    • Organizer
      The 2022 Annual Meeting of the Society for Neuroscience
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] こどもの脳が柔軟に成長する仕組み~経験依存の回路形成~2022

    • Author(s)
      杉山清佳
    • Organizer
      第18回名古屋大学ホームカミングデイ
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Translation-dependent wiring of cortical local circuits in visual cortex2021

    • Author(s)
      Hou X, Ling Y, Sakimura K, Okuda S, and Sugiyama S
    • Organizer
      The 44th Annual Meeting of the Japan Neuroscience Society
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Experience-dependent development of interneuron in juvenile brain requires cohesin-loader Nipbl2021

    • Author(s)
      Sakai A, Nakato R, Oba GM, Peters H, Shirahige K and Sugiyama S.
    • Organizer
      The 44th Annual Meeting of the Japan Neuroscience Society
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Experience-dependent actin organization specifies dendritic properties in cortical interneurons2021

    • Author(s)
      Hou X, Morishima M, Sugi J, Sakimura K, Kawaguchi Y and Sugiyama S
    • Organizer
      The 2021 Annual Meeting of the Society for Neuroscience
    • Related Report
      2021 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 脳の柔軟性を科学する2021

    • Author(s)
      杉山清佳
    • Organizer
      新潟明訓高等学校キャリアパスセミナー
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 生後脳の経験依存的な抑制性ニューロン発達におけるコヒーシンローダーの役割2021

    • Author(s)
      酒井 晶子、中戸 隆一郎、Heiko Peters、白髭 克彦、杉山 清佳
    • Organizer
      第38回染色体ワークショプ
    • Related Report
      2020 Annual Research Report
  • [Presentation] Targetome profiling of Otx2-eIF4E dependent translation in cortical plasticity2020

    • Author(s)
      Hou X. Ling Y. Sakai A. Okuda S. Sugiyama S.
    • Organizer
      The 43th Annual Meeting of the Japan Neuroscience Society
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Role of cohesin loader in experience-dependent development of interneuron in juvenile brain2020

    • Author(s)
      Sakai A. Nakato R. Peters H. Shirahige K. Sugiyama S
    • Organizer
      The 43th Annual Meeting of the Japan Neuroscience Society
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 幼若脳の経験依存的な抑制性介在ニューロン発達におけるコヒーシンローダーの役割2020

    • Author(s)
      酒井 晶子、中戸 隆一郎、Heiko Peters、白髭 克彦、杉山 清佳
    • Organizer
      第43回日本分子生物学会年会
    • Related Report
      2020 Annual Research Report
  • [Presentation] Coactosin functions as a morphological determinant in developing cortical interneurons2019

    • Author(s)
      Hou X. Morishima M. Matohara N. Sugi J. Sakimura K. Kawaguchi Y. Sugiyama S.
    • Organizer
      Neuro2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Regulation of chromatin structure by cohesin during juvenile cortical development2019

    • Author(s)
      Sakai A. Nakato R. Peters H. Shirahige K. Sugiyama S.
    • Organizer
      Neuro2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Effect of Otx2-expressing dopaminergic cells on development of fear memory2019

    • Author(s)
      Koyama C. Iijima T. Hou X. Sugiyama S.
    • Organizer
      Neuro2019
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Cytoskeletal mechanisms underlying a morphological determinant in developing cortical interneurons2019

    • Author(s)
      Hou X. Morishima M. Matohara N. Sugi J. Sakimura K. Kawaguchi Y. Sugiyama S.
    • Organizer
      The 13th Biennial Conference of Chinese Neuroscience Society
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Remarks] 脳の形成時に神経細胞の突起の伸ばし方を決める因子を発見

    • URL

      https://www.niigata-u.ac.jp/news/2021/92593/

    • Related Report
      2021 Annual Research Report
  • [Remarks] 脳深部の単一神経回路の可視化に成功しました-1細胞レベルで遺伝子を操作する方法を開発-

    • URL

      https://www.niigata-u.ac.jp/news/2020/80659/

    • Related Report
      2020 Annual Research Report
  • [Remarks] 研究内容/神経発達学/新潟大学医学部医学科

    • URL

      http://www.med.niigata-u.ac.jp/contents/research/shinryou/shinkei.html

    • Related Report
      2019 Annual Research Report

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Published: 2019-04-18   Modified: 2024-01-30  

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