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Finding novel adult neurogenesis-related genes in the mouse brain

Research Project

Project/Area Number 17K14950
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Nerve anatomy/Neuropathology
Research InstitutionKyoto University

Principal Investigator

Yamada Mayumi  京都大学, 生命科学研究科, 特定助教 (50583457)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,290,000 (Direct Cost: ¥3,300,000、Indirect Cost: ¥990,000)
Fiscal Year 2019: ¥910,000 (Direct Cost: ¥700,000、Indirect Cost: ¥210,000)
Fiscal Year 2018: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords神経幹細胞 / 遺伝子発現プロファイル / RNAシークエンス / 神経新生 / 光遺伝学 / 海馬歯状回 / 側脳室周囲 / 転写因子 / ニューロン新生 / FACS / 光作動性転写因子 / 遺伝子発現プロファイリング / 神経発生 / トランスジェニックマウス
Outline of Final Research Achievements

To understand the precise mechanism of brain development and adult neurogenesis, it's important to unveil the temporal gene expression changes in neural stem cells (NSCs) during brain maturation and aging. I focused on the temporal gene expression changes during brain development and aging of NSCs. To specifically label NSCs in the mouse brain by fluorescence proteins, I generated GFAP-GFP; Nestin-mCherry double transgenic mouse. I isolated NSCs from the embryonic (E14), postnatal (P0) and adult brain (2-3 months old mice) with fluorescence-activated cell sorting (FACS). I determined gene expression profiles of the isolated NSCs by the RNA-sequence analysis. The temporal gene expression changes of NSCs were compared among embryonic, postnatal and adult stages. I highlighted up-regulated or down-regulated genes by 2-fold or more between the compared stages. I am trying to identify novel important genes response for the coordinated regulation of NSCs and neurogenesis.

Academic Significance and Societal Importance of the Research Achievements

これまで胎児脳または成体脳における神経幹細胞の遺伝子発現について報告した研究はいくつかあるが、本研究のように胎生期から成体老齢期において、大規模に神経幹細胞の遺伝子発現変動を観察した報告は少なかった。成体脳における神経新生は記憶・学習などの高次脳機能に関与していると考えられ、出生期から成体期にかけて、適切に神経幹細胞の性質が制御される必要がある。本研究では、大規模な遺伝子発現プロファイル解析から、神経新生に関与する遺伝子を探索し、生後脳・成体脳における神経新生のメカニズムを解明することによって、アルツハイマー病などの神経疾患の機能改善に貢献することが期待される。

Report

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

    (12 results)

All 2020 2019 2018 2017 Other

All Journal Article (3 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 3 results,  Open Access: 3 results) Presentation (5 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results) Book (2 results) Remarks (1 results) Patent(Industrial Property Rights) (1 results)

  • [Journal Article] Light-mediated Control of Gene Expression in Mammalian Cells.2020

    • Author(s)
      Yamada M, Nagasaki C. S, Ozawa T, Imayoshi I.
    • Journal Title

      Neuroscience Research

      Volume: 152 Pages: 66-77

    • DOI

      10.1016/j.neures.2019.12.018

    • NAID

      120006888020

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Enhanced lysosomal degradation maintains the quiescent state of neural stem cells2019

    • Author(s)
      T. Kobayashi, W. Piao, T. Takamura, H. Kori, H. Miyachi, S. Kitano, Y. Iwamoto, M. Yamada, I. Imayoshi, S. Shioda, A. Ballabio, R. Kageyama
    • Journal Title

      Nature Communications

      Volume: 10 Issue: 1 Pages: 5446-5446

    • DOI

      10.1038/s41467-019-13203-4

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Light Control of the Tet Gene Expression System in Mammalian Cells2018

    • Author(s)
      Yamada Mayumi、Suzuki Yusuke、Nagasaki Shinji C.、Okuno Hiroyuki、Imayoshi Itaru
    • Journal Title

      Cell Reports

      Volume: 25 Issue: 2 Pages: 487-500

    • DOI

      10.1016/j.celrep.2018.09.026

    • NAID

      120006531246

    • Related Report
      2018 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] 神経幹細胞におけるbHLH型転写因子のダイナミックな発現制御機構2019

    • Author(s)
      山田真弓、長崎真治、今吉格
    • Organizer
      Neuro2019(第42回日本神経科学大会)
    • Related Report
      2019 Annual Research Report
  • [Presentation] Optimization of the photo-activatable gene expression system in mammalian cells2018

    • Author(s)
      Mayumi Yamada
    • Organizer
      The 17th International Joint Mini-Symposium on Molecular and Cell Biology
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Optimization of light-inducible gene expression system in mammalian cells2018

    • Author(s)
      Mayumi Yamada
    • Organizer
      第12回神経発生討論会
    • Related Report
      2018 Research-status Report
  • [Presentation] New optical tools for manipulating gene expressions in neural stem cells2017

    • Author(s)
      Mayumi Yamada
    • Organizer
      第9回光操作研究会
    • Related Report
      2017 Research-status Report
    • Invited
  • [Presentation] Novel optical tools for manipulating gene expressions in neural stem cells2017

    • Author(s)
      Mayumi Yamada
    • Organizer
      第11回神経発生討論会
    • Related Report
      2017 Research-status Report
  • [Book] 「細胞」生後脳・成体脳におけるニューロン新生と神経幹細胞の制御機構2018

    • Author(s)
      今吉 格、山田 真弓
    • Total Pages
      4
    • Publisher
      ニュー・サイエンス社
    • Related Report
      2018 Research-status Report
  • [Book] 「Clinical Neuroscience」遺伝子発現の光制御2018

    • Author(s)
      今吉 格、山田 真弓
    • Total Pages
      4
    • Publisher
      中外医学社
    • Related Report
      2018 Research-status Report
  • [Remarks] researchmap

    • URL

      https://researchmap.jp/myamada

    • Related Report
      2017 Research-status Report
  • [Patent(Industrial Property Rights)] 光活性化可能なTet発現制御システム2018

    • Inventor(s)
      今吉格、山田真弓、鈴木裕輔
    • Industrial Property Rights Holder
      今吉格、山田真弓、鈴木裕輔
    • Industrial Property Rights Type
      特許
    • Filing Date
      2018
    • Related Report
      2018 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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