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Proteins that help promote neural repair in rehabilitation-aided recovery from brain hemorrhage

Research Project

Project/Area Number 19K11366
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 59010:Rehabilitation science-related
Research InstitutionOsaka University

Principal Investigator

Mariko Nishibe  大阪大学, 大学院歯学研究科, 講師 (50638757)

Project Period (FY) 2019-04-01 – 2023-03-31
Project Status Completed (Fiscal Year 2022)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2021: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2020: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2019: ¥1,950,000 (Direct Cost: ¥1,500,000、Indirect Cost: ¥450,000)
KeywordsStroke / Hemorrhage / Gene expression / Cortex / リハビリテーション / 脳出血 / 大脳皮質 / 線条体 / 運動機能 / 脳血管疾患 / 運動リハビリテーション
Outline of Research at the Start

脳損傷・脳血管疾患による麻痺などの身体後遺症からの改善のために、運動リハビリテーション が施されているが、脳の高次運動機能を元の状態に戻す事は多くの場合非常に困難である。本研究は、運動機能の回復法開発の基盤となる「高次運動機能回復を可能とするリハビリ効果依存的な神経可塑性を促進する分泌分子の同定」を目指す。具体的には、マウス脳出血後の組織を用いたRNA sequenceの解析データを基に、リハビリ効果依存的に発現が変動する遺伝子を抽出し、候補遺伝子を絞り込む。リハビリ効果依存的な遺伝子発現解析はこれまでに報告がないため、分子根拠に基づいた運動治療法解明を今後展開するための基盤になる。

Outline of Final Research Achievements

We analyzed molecular regulation of the cortical cells following a hemorrhage induced to the ipsilateral striatum. Rehabilitation-specific effects on cortical molecular profile were found to be the upregulation of various promoters, molecules related to blood-vessel repair. We determined that Atf3 protein to be highly expressed in rehabilitation-manner in the cortical layer 5 projection neurons (of which send reciprocal connection with the injured striatum), as well as peri-injury area. The number of pericytes and endothelial cells, that contribute to blood-vessel repair did not significantly change rehabilitation-dependently, though the numbers were significantly higher after hemorrhage. The study suggests that cortical neuro-functional recovery is associated with the upregulation of repair-activity of neurons and molecular levels of blood-vessel repair. We provide evidence of how rehabilitation facilitates the gene/ protein expression of injured neurons in a mouse hemorrhagic model.

Academic Significance and Societal Importance of the Research Achievements

レンズ核線条体動脈の出血による被殻出血は、全能出血の40%を占め、上位運動ニューロンと感覚ニューロンに障害をきたし、片麻痺・麻痺側の感覚障害を引き起こす。線条体出血のマウスモデルを使い、脳神経の分子学・生理学データ、また回復期の巧緻運動機能へのリハビリ効果を示した。さらなるメカニズム解明により、脳神経機能回復を完結に近づけるために行うリハビリについて多面的にアプローチする事が可能である。

Report

(5 results)
  • 2022 Annual Research Report   Final Research Report ( PDF )
  • 2021 Research-status Report
  • 2020 Research-status Report
  • 2019 Research-status Report
  • Research Products

    (4 results)

All 2021 2020 Other

All Int'l Joint Research (1 results) Journal Article (2 results) (of which Peer Reviewed: 2 results,  Open Access: 1 results) Book (1 results)

  • [Int'l Joint Research] University of Chicago(米国)

    • Related Report
      2020 Research-status Report
  • [Journal Article] Synaptic and Genetic Bases of Impaired Motor Learning Associated with Modified Experience-Dependent Cortical Plasticity in Heterozygous <i>Reeler</i> Mutants2021

    • Author(s)
      Nishibe Mariko、Toyoda Hiroki、Hiraga Shin-ichiro、Yamashita Toshihide、Katsuyama Yu
    • Journal Title

      Cerebral Cortex

      Volume: 32 Issue: 3 Pages: 504-519

    • DOI

      10.1093/cercor/bhab227

    • Related Report
      2021 Research-status Report
    • Peer Reviewed
  • [Journal Article] Microglial depletion under thalamic hemorrhage ameliorates mechanical allodynia and suppresses aberrant axonal sprouting2020

    • Author(s)
      Hiraga Shin-ichiro、Itokazu Takahide、Hoshiko Maki、Takaya Hironobu、Nishibe Mariko、Yamashita Toshihide
    • Journal Title

      JCI Insight

      Volume: 5 Issue: 3

    • DOI

      10.1172/jci.insight.131801

    • Related Report
      2019 Research-status Report
    • Peer Reviewed / Open Access
  • [Book] The Forebrain: Development, Physiology and Functions2020

    • Author(s)
      (Editor: Morten F. Thorsen) Mariko Nishibe and Yu Katsuyama
    • Total Pages
      130
    • Publisher
      Nova Science Publishers, Inc.
    • ISBN
      9781536184075
    • Related Report
      2020 Research-status Report

URL: 

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

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