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Intravenous infusion of mesenchymal stem cells enhance plasticity in the brain of rat model of experimental spinal cord injury

Research Project

Project/Area Number 18K09071
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 56020:Orthopedics-related
Research InstitutionSapporo Medical University

Principal Investigator

Nagahama Hiroshi  札幌医科大学, 医学部, 研究員 (20725676)

Co-Investigator(Kenkyū-buntansha) 鈴木 淳平  札幌医科大学, 医学部, 研究員 (00572596)
佐々木 祐典  札幌医科大学, 医学部, 准教授 (20538136)
中崎 公仁  札幌医科大学, 医学部, 研究員 (70722461)
本望 修  札幌医科大学, 医学部, 教授 (90285007)
Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2018: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Keywords神経可塑性 / 骨髄間葉系幹細胞 / 脊髄損傷 / diffusion tensor / 神経再生 / 再生医療
Outline of Final Research Achievements

The enhanced neural plasticity at the injured tissue and/or in the higher level of spinal cord and brain following intravenous infusion of MSCs in spinal cord injury (SCI) model was thought to be due to protection from neuronal, axonal loss or degeneration in the injured tissue, and stabilization of the blood-spinal cord barrier. Furthermore, we analyzed the variable genes expressed in the motor cortex at the 3 days post-MSC infusion, when functional improvement was observed, and found that there were changes in the expression levels of several genes, which may enhance neural plasticity. Consequently, we found that intravenous infusion of MSCs in SCI may promote the functional improvement through the enhanced neural plasticity induced at the injured tissue and at the upper spinal cord and brain.

Academic Significance and Societal Importance of the Research Achievements

脊髄損傷後の回復過程において、損傷部位のみならず損傷を受けていない上位に位置する脊髄および脳において、神経の構造および機能の再構築が惹起され、新しい神経回路が構築されることで、神経機能が回復することが知られている。一方、我々は骨髄間葉系幹細胞治療(MSC治療)が神経の再構築を亢進することで良好な機能改善効果を発揮することを明らかにしている。脊髄損傷に対するMSC治療が、損傷脊髄局所ならびに上位脊髄および脳において作用し、神経機能再構築の亢進作用を発揮することで神経機能改善に寄与している可能性があり、そのメカニズムを解明することは次世代の治療法の開発につながる。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (1 results)

All 2020

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

  • [Journal Article] Intravenous delivery of mesenchymal stem cells protects both white and gray matter in spinal cord ischemia2020

    • Author(s)
      Naomi Yasuda
    • Journal Title

      Brain Research

      Volume: 1747 Pages: 1-10

    • DOI

      10.1016/j.brainres.2020.147040

    • NAID

      40022652830

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed / Int'l Joint Research

URL: 

Published: 2018-04-23   Modified: 2022-01-27  

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