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The role of Unipolar brush cells in the cerebellar functions

Research Project

Project/Area Number 20K15919
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 InstitutionNiigata University (2021-2022)
National Center of Neurology and Psychiatry (2020)

Principal Investigator

Miyashita Satoshi  新潟大学, 脳研究所, 助教 (30828900)

Project Period (FY) 2020-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2022: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
KeywordsUnipolar brush cells / 小脳 / 神経発生 / single cell RNAseq / unipolar brush cells / single cell RNA / 発生 / UBCs / Unipolar brush cell / development
Outline of Research at the Start

小脳は、運動機能のみならず高次機能への関与及び精神疾患に関わることが報告されている脳領域であるが、その動作原理に関しては未だに多くの謎が残されている。研究では、小脳皮質における興奮性の神経細胞であり、未だ機能がほとんど解明されていない単極性刷毛細胞(Unipolar Brush Cells; UBCs)に着目し、UBCsの整理機能の解明及び小脳皮質回路の情報処理システムの理解を深めることを目的とする。

Outline of Final Research Achievements

The cerebellum has been reported to be involved not only in motor functions but also in cognitive functions and sociability. In this study, we focused on unipolar brush cells (UBCs), which are excitatory neurons in the cerebellar cortex and whose functions are still largely unknown, in order to elucidate the physiological functions of UBCs. We have deciphered genes which specifically expressed in UBCs by using single-cell RNA sequencing (scRNAseq) data obtained from the cerebellum. As a result, we identified novel UBC markers and discovered that UBCs can be further classified into several subtypes. We further confirmed that these specific markers are expressed in the cerebellum in vivo. Analyzing the neural circuit of UBC subtypes will shed light on the unknown cerebellar circuits which may contribute to the cognitive and/or social function of the cerebellum.

Academic Significance and Societal Importance of the Research Achievements

UBCsに関する研究は、小脳皮質に存在する他の神経細胞と比較して非常に限定的である。発生的な見地からは、 EnglundらがTbr2の免疫染色を用いることでUBCsが菱脳唇に由来すことを見出している(Englund et al. 2006)。一方、神経回路的な見地からは第X小葉におけるUBCsが前庭神経と直接シナプス結合することが示されている(Balmer 2019)。本研究によって同定されたUBCsの新規分子マーカーや詳細なサブタイプ分類は、今後、UBCsの研究をさらに発展させるとともに、小脳神経回路や小脳機能の新しい側面を解明することにつながることが期待される。

Report

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

    (12 results)

All 2023 2022 2021 2020

All Journal Article (9 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 9 results,  Open Access: 8 results) Presentation (3 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Journal Article] Cerebrospinal fluid-contacting neuron tracing reveals structural and functional connectivity for locomotion in the mouse spinal cord2023

    • Author(s)
      Nakamura Yuka、Kurabe Miyuki、Matsumoto Mami、Sato Tokiharu、Miyashita Satoshi、Hoshina Kana、Kamiya Yoshinori、Tainaka Kazuki、Matsuzawa Hitoshi、Ohno Nobuhiko、Ueno Masaki
    • Journal Title

      eLife

      Volume: 12 Pages: 1-31

    • DOI

      10.7554/elife.83108

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Epigenetic upregulation of Schlafen11 renders WNT- and SHH-activated medulloblastomas sensitive to cisplatin2022

    • Author(s)
      Nakata Satoshi、Murai Junko、Okada Masayasu,,,,,Tateishi Kensuke、Yamashita Shinji、Eberhart Charles G、Natsumeda Manabu
    • Journal Title

      Neuro-Oncology

      Volume: 25 Issue: 5 Pages: 899-912

    • DOI

      10.1093/neuonc/noac243

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Transit Amplifying Progenitors in the Cerebellum: Similarities to and Differences from Transit Amplifying Cells in Other Brain Regions and between Species2022

    • Author(s)
      Miyashita Satoshi、Hoshino Mikio
    • Journal Title

      Cells

      Volume: 11 Issue: 4 Pages: 726-726

    • DOI

      10.3390/cells11040726

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Cyclin D1 controls development of cerebellar granule cell progenitors through phosphorylation and stabilization of ATOH1.2021

    • Author(s)
      Satoshi Miyashita, Tomoo Owa, Yusuke Seto, Mariko Yamashita, Shogo Aida, Masaki Sone, Kentaro Ichijo, Tomoki Nishioka, Kozo Kaibuchi, Yoshiya Kawaguchi, Shinichiro Taya, Mikio Hoshino
    • Journal Title

      EMBO J.

      Volume: 40 Issue: 14

    • DOI

      10.15252/embj.2020105712

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Notch Signaling between Cerebellar Granule Cell Progenitors2021

    • Author(s)
      Adachi Toma、Miyashita Satoshi、Yamashita Mariko、Shimoda Mana、Okonechnikov Konstantin、Chavez Lukas、Kool Marcel、Pfister Stefan M.、Inoue Takafumi、Kawauchi Daisuke、Hoshino Mikio
    • Journal Title

      eneuro

      Volume: 8 Issue: 3 Pages: 0468-20

    • DOI

      10.1523/eneuro.0468-20.2021

    • Related Report
      2021 Research-status Report 2020 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Pharmacological activation of SERCA ameliorates dystrophic phenotypes in dystrophin-deficient <i>mdx</i> mice2021

    • Author(s)
      Nogami Ken'ichiro、Maruyama Yusuke、Sakai-Takemura Fusako、Motohashi Norio、Elhussieny Ahmed、Imamura Michihiro、Miyashita Satoshi、Ogawa Megumu、Noguchi Satoru、Tamura Yuki、Kira Jun-ichi、Aoki Yoshitsugu、Takeda Shin'ichi、Miyagoe-Suzuki Yuko
    • Journal Title

      Human Molecular Genetics

      Volume: 30 Issue: 11 Pages: 1006-1019

    • DOI

      10.1093/hmg/ddab100

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] The role of SCFSkp2 and SCFβ-TrCP1/2 in the cerebellar granule cell precursors2020

    • Author(s)
      Yamashita M, Owa T, Shiraishi R, Adachi T, Ichijo K, Taya S, Miyashita S, Hoshino M
    • Journal Title

      Genes Cells

      Volume: (12) Issue: 12 Pages: 796-810

    • DOI

      10.1111/gtc.12813

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] DSCAM regulates delamination of neurons in the developing midbrain2020

    • Author(s)
      Arimura Nariko、Okada Mako、Taya Shinichiro、Dewa Ken-ichi、Tsuzuki Akiko、Uetake Hirotomo、Miyashita Satoshi、Hashizume Koichi、Shimaoka Kazumi、Egusa Saki、Nishioka Tomoki、Yanagawa Yuchio、Yamakawa Kazuhiro、Inoue Yukiko U.、Inoue Takayoshi、Kaibuchi Kozo、Hoshino Mikio
    • Journal Title

      Science Advances

      Volume: 6 Issue: 36 Pages: 1693-1693

    • DOI

      10.1126/sciadv.aba1693

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] AUTS2 regulation of synapses for proper synaptic inputs and social communication.2020

    • Author(s)
      Hori Kei、Yamashiro Kunihiko、Nagai Taku、... Yamada Mitsuhiko、Yamada Kiyofumi、Hoshino Mikio
    • Journal Title

      iScience

      Volume: ー Issue: 6 Pages: 101183-101183

    • DOI

      10.1016/j.isci.2020.101183

    • Related Report
      2020 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] Transit amplification of cerebellar granule cell in human and mouse cerebellum.2022

    • Author(s)
      宮下 聡
    • Organizer
      Neuro2022
    • Related Report
      2022 Annual Research Report
  • [Presentation] A novel developmental pattern of cerebellar granule cells revealed by big data-driven approach2021

    • Author(s)
      Satoshi Miyashita
    • Organizer
      Korea-Japan Joynt Symposium
    • Related Report
      2020 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] ビッグデータが切り開く小脳顆粒細胞の新しい発生様式とその分子基盤2021

    • Author(s)
      宮下 聡
    • Organizer
      CBIR若手インスパイアシンポジウム
    • Related Report
      2020 Research-status Report

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

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