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Analysis of embryonic to adult neurogenesis with a special emphasis on microenvironmental signal

Research Project

Project/Area Number 16K07033
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Nerve anatomy/Neuropathology
Research InstitutionTokyo Medical University

Principal Investigator

Seki Tatsunori  東京医科大学, 医学部, 主任教授 (20175417)

Co-Investigator(Kenkyū-buntansha) 柏木 太一  東京医科大学, 医学部, 助教 (10398232)
篠原 広志  東京医科大学, 医学部, 講師 (10455793)
權田 裕子  東京医科大学, 医学部, 助教 (60424181)
Project Period (FY) 2016-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,810,000 (Direct Cost: ¥3,700,000、Indirect Cost: ¥1,110,000)
Fiscal Year 2018: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2017: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2016: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
Keywords海馬 / 神経前駆細胞 / CXCR4 / 細胞分化 / 細胞移動 / 顆粒細胞 / 発生 / CXCL12 / 移動 / 歯状回 / エンドサイトーシス / 分化 / 細胞内局在 / 神経幹細胞 / ニューロン新生 / 微小環境
Outline of Final Research Achievements

In the dentate gyrus (DG) of the hippocampus, granule cells are continuously generated throughout the life of mammals by granule cell progenitors (GCPs). To understand the mechanisms of this persistent neurogenesis, comprehensive analysis of the neurogenesis of dentate granule cells, from embryonic to adult stages is required. To understand the mechanism of GCL formation, we investigated the dynamics and function of CXCR4 which is expressed by the GCPs and is a receptor of the CXCL12 chemokine secreted by cells surrounding the DG. The present results suggest that during the development and migration of GCPs, CXCR4 on the plasma membrane is phosphorylated, internalized, sorted to the centrosomes, Golgi apparatus, and lysosomes, and functionally regulates GCP differentiation, migration and positioning.

Academic Significance and Societal Importance of the Research Achievements

一般にニューロンの新生は、胎生期に起こり生後には起こらない。しかし、海馬歯状回の顆粒細胞層では、顆粒細胞前駆細胞 (granule cell progenitors, GCP)によって、顆粒細胞が一生の間新生され続けている。この生後に起こるニューロン新生は海馬の学習・記憶や神経疾患に関係することが報告されている。本研究結果は、CXCR4を介したしシグナルが、GCPの分化、移動、位置決定を調節することを示している。このニューロン新生の調節機構の解明は、神経細胞移植などの再生医療の開発に役立つことが考えられる。

Report

(5 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • 2016 Research-status Report
  • Research Products

    (32 results)

All 2019 2018 2017 2016 Other

All Journal Article (5 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 5 results,  Open Access: 2 results) Presentation (24 results) Remarks (3 results)

  • [Journal Article] Non-radial tortuous migration with cell polarity alterations of newly generated granule neurons in the neonatal rat dentate gyrus2019

    • Author(s)
      Namba T, Shinohara H, Seki T
    • Journal Title

      Brain Struct Funct

      Volume: 224 Issue: 9 Pages: 3247-3262

    • DOI

      10.1007/s00429-019-01971-0

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Dentate granule progenitor cell properties are rapidly altered soon after birth2018

    • Author(s)
      Matsue K, Minakawa S, Kashiwagi, Toda K, Sato T, Shioda S, Seki T
    • Journal Title

      Brain Struct Funct

      Volume: 223 Issue: 2 Pages: 357-369

    • DOI

      10.1007/s00429-018-1613-5

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Dynamics and function of CXCR4 in formation of the granule cell layer during hippocampal development2017

    • Author(s)
      Miura-Yamamoto Y, Shinohara H, Kashiwagi T, Sato T, Shioda S, Seki T
    • Journal Title

      Scientific Reports

      Volume: 7: 5647 Issue: 1 Pages: 1-14

    • DOI

      10.1038/s41598-017-05738-7

    • Related Report
      2017 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Seizure severity-dependent selective vulnerability of the granule cell layer and aberrant neurogenesis in the rat hippocampus2017

    • Author(s)
      Uemori T, Toda K, Seki T
    • Journal Title

      Hippocampus

      Volume: 27 Issue: 10 Pages: 1054-1068

    • DOI

      10.1002/hipo.22752

    • Related Report
      2017 Research-status Report
    • Peer Reviewed
  • [Journal Article] Neural stem cells and neuro/gliogenesis in the central nervous system: understanding the structural and functional plasiticity of the deveroping, mature, and diseased brain.2016

    • Author(s)
      Yamaguchi M, Seki T, Imayoshi I, Tamamaki N, Hayashi Y, Tatebayashi Y, Hitoshi S.
    • Journal Title

      Journal of Physiological Science

      Volume: 66(3) Issue: 3 Pages: 197-206

    • DOI

      10.1007/s12576-015-0421-4

    • Related Report
      2016 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Analysis of cellular migration in developmental dentate gyrus2019

    • Author(s)
      Shinohara H, Seki T
    • Organizer
      第42回日本神経科学大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 胎生期海馬における神経幹・前駆細胞形成および神経新生機構2019

    • Author(s)
      柏木太一,塩田清二,篠原広志,石龍徳
    • Organizer
      第124回日本解剖学会総会・全国学術集会
    • Related Report
      2018 Research-status Report
  • [Presentation] Two distinctive dorsal and ventral pathways form dentate granule cell layer2019

    • Author(s)
      篠原広志、石龍徳
    • Organizer
      第124回日本解剖学会総会・全国学術集会
    • Related Report
      2018 Research-status Report
  • [Presentation] Analysis of cellular migration in developmental dentate gyrus2018

    • Author(s)
      Shinohara H, Seki T
    • Organizer
      第41回日本神経科学大会
    • Related Report
      2018 Research-status Report
  • [Presentation] 海馬歯状回顆粒細胞形成の分子メカニズム解析2018

    • Author(s)
      篠原広志, 石龍徳
    • Organizer
      第123回日本解剖学会総会・全国学術集会
    • Related Report
      2017 Research-status Report
  • [Presentation] ラット海馬顆粒細胞層におけるてんかん発作重症度依存性の選択的脆弱性とニューロン 新生異常2018

    • Author(s)
      上森建至, 戸田景子, 石龍徳
    • Organizer
      第123回日本解剖学会総会・全国学術集会
    • Related Report
      2017 Research-status Report
  • [Presentation] BMPシグナルによる海馬神経細胞形成制御2018

    • Author(s)
      柏木太一, 篠原広志, 塩田清二, 石龍徳
    • Organizer
      第123回日本解剖学会総会・全国学術集会
    • Related Report
      2017 Research-status Report
  • [Presentation] 海馬顆粒細胞層形成過程におけるCXCR4の動態と機能2018

    • Author(s)
      山本夕香, 篠原広志,柏木太一,佐藤亨, 塩田清二,石龍徳
    • Organizer
      第123回日本解剖学会総会・全国学術集会
    • Related Report
      2017 Research-status Report
  • [Presentation] 海馬歯状回の顆粒細胞前駆細胞の性質は出生直後に変化する2018

    • Author(s)
      松江健太, 皆川史織,柏木太一, 佐藤亨, 塩田清二,石龍徳
    • Organizer
      第123回日本解剖学会総会・全国学術集会
    • Related Report
      2017 Research-status Report
  • [Presentation] 大脳皮質GABAニューロンの形態維持にはGABA分泌が必要である2018

    • Author(s)
      江角重行, 柳川右千夫, 崎村建司, 石龍徳, 玉巻伸章
    • Organizer
      第123回日本解剖学会総会・全国学術集会
    • Related Report
      2017 Research-status Report
  • [Presentation] The discovery, acceptance of adult neurogenesis, and the progress of its research2017

    • Author(s)
      Seki, T
    • Organizer
      第40回日本神経科学大会
    • Related Report
      2017 Research-status Report
  • [Presentation] The granule cells are generated by various cell types depend on several cellular migrating pathways during the developmental stages.2017

    • Author(s)
      Shinohara H, Seki T
    • Organizer
      第40回日本神経科学大会
    • Related Report
      2017 Research-status Report
  • [Presentation] The role of Robo1 as a dendrite guidance molecule of neocortical excitatory neurons2017

    • Author(s)
      Gonda Y, Seki T, Hanashima C
    • Organizer
      第40回日本神経科学大会
    • Related Report
      2017 Research-status Report
  • [Presentation] GABAergic neuron progenitors differentiate to mature GABAergic neuron strictly but small number of them differentiate to glial cells during forebrain development2017

    • Author(s)
      EsumiS, Yanagawa Y, Sakimura K, Kagawa T, Seki T, Takebayashi H, Tamamaki N
    • Organizer
      第40回日本神経科学大会
    • Related Report
      2017 Research-status Report
  • [Presentation] 脳:胎生期~成体期まで存在する海馬の神経幹細胞の実態2017

    • Author(s)
      石龍徳
    • Organizer
      第122回日本解剖学会総会・全国学術集会
    • Place of Presentation
      長崎
    • Related Report
      2016 Research-status Report
  • [Presentation] 発生過程におけるGAD67陽性細胞大脳皮質GABAニューロン前駆細胞の分裂と系譜2017

    • Author(s)
      江角重行, 柳川右千夫, 島村健司, 石龍徳, 玉巻伸章
    • Organizer
      第122回日本解剖学会総会・全国学術集会
    • Place of Presentation
      長崎
    • Related Report
      2016 Research-status Report
  • [Presentation] Migration Behavior of Neural stem/progenitor Cells in the Developing Dentate Gyrus2017

    • Author(s)
      篠原広志,石龍徳
    • Organizer
      第122回日本解剖学会総会・全国学術集会
    • Place of Presentation
      長崎
    • Related Report
      2016 Research-status Report
  • [Presentation] 胎生期海馬に存在する神経幹・前駆細胞の性質2017

    • Author(s)
      柏木太一, 篠原広志, 塩田清二, 石龍徳
    • Organizer
      第122回日本解剖学会総会・全国学術集会
    • Place of Presentation
      長崎
    • Related Report
      2016 Research-status Report
  • [Presentation] 海馬に局在するCajal-Retzius細胞のサブタイプ解析2017

    • Author(s)
      権田裕子, 石龍徳
    • Organizer
      第122回日本解剖学会総会・全国学術集会
    • Place of Presentation
      長崎
    • Related Report
      2016 Research-status Report
  • [Presentation] Intracellular trafficking of the CXCR4 molecules in the neural progenitors during formation of hippocampal granule cell layer2016

    • Author(s)
      Yamamoto Y, Shinohara H, Kashiwagi T, Sato T, Matsue K, Shioda S, Seki T
    • Organizer
      第39回日本神経科学大会
    • Place of Presentation
      横浜
    • Related Report
      2016 Research-status Report
  • [Presentation] The property of Gfap-expressing dentate granule cell progenitors is altered soon after birth2016

    • Author(s)
      Matsue K,Minakawa S,Kashiwagi T,Toda K,Yamamoto Y,Shioda S,Seki T
    • Organizer
      第39回日本神経科学大会
    • Place of Presentation
      横浜
    • Related Report
      2016 Research-status Report
  • [Presentation] Molecular mechanisms that establish apical dendrite morphology and distribution of neocortical pyramidal neurons2016

    • Author(s)
      Gonda Y,Seki T,Hanashima C
    • Organizer
      第39回日本神経科学大会
    • Place of Presentation
      横浜
    • Related Report
      2016 Research-status Report
  • [Presentation] Various Cell Types Construct The Dentate Gyrus During Development2016

    • Author(s)
      Shinohara H,Yamamoto Y,Seki T
    • Organizer
      第39回日本神経科学大会
    • Place of Presentation
      横浜
    • Related Report
      2016 Research-status Report
  • [Presentation] Mechanisms of BMP signaling regulation in the developing hippocampus2016

    • Author(s)
      Kashiwagi T,Sioda S,Ishihara S,Matsue K,Seki T
    • Organizer
      第39回日本神経科学大会
    • Place of Presentation
      横浜
    • Related Report
      2016 Research-status Report
  • [Remarks] 東京医科大学 組織・神経解剖学分野

    • URL

      https://tokyomed-histology-neuroanatomy.jimdofree.com/

    • Related Report
      2019 Annual Research Report
  • [Remarks] 組織・神経解剖学分野

    • URL

      https://tokyomed-histology-neuroanatomy.jimdo.com

    • Related Report
      2018 Research-status Report 2016 Research-status Report
  • [Remarks] 東京医科大学組織・神経解剖学分野

    • URL

      https://tokyomed-histology-neuroanatomy.jimdo.com

    • Related Report
      2017 Research-status Report

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Published: 2016-04-21   Modified: 2021-02-19  

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