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Therapeutic strategies for cerebral infarction and spinal cord injury by activating plasticity throughout the central nervous system

Research Project

Project/Area Number 23K24447
Project/Area Number (Other) 22H03188 (2022-2023)
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeMulti-year Fund (2024)
Single-year Grants (2022-2023)
Section一般
Review Section Basic Section 56010:Neurosurgery-related
Research InstitutionSapporo Medical University

Principal Investigator

Honmou Osamu  札幌医科大学, 医学部, 教授 (90285007)

Co-Investigator(Kenkyū-buntansha) 佐々木 雄一  札幌医科大学, 医学部, 研究員 (00570136)
福士 龍之介  札幌医科大学, 医学部, 研究員 (00894065)
佐々木 祐典  札幌医科大学, 医学部, 准教授 (20538136)
小原 尚  札幌医科大学, 医学部, 研究員 (20919732)
鵜飼 亮  札幌医科大学, 医学部, 講師 (30896113)
小林 萬里  札幌医科大学, 医学部, 研究員 (50971074)
山下 達郎  札幌医科大学, 医学部, 研究員 (60815439)
横山 貴裕  札幌医科大学, 医学部, 研究員 (60896116)
岡 真一  札幌医科大学, その他部局等, 准教授 (70789453)
佐々木 優子  札幌医科大学, 医学部, 助教 (80631142)
中崎 公仁  札幌医科大学, 医学部, 特任助教 (70722461)
Project Period (FY) 2024-04-01 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥16,900,000 (Direct Cost: ¥13,000,000、Indirect Cost: ¥3,900,000)
Fiscal Year 2024: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2023: ¥5,460,000 (Direct Cost: ¥4,200,000、Indirect Cost: ¥1,260,000)
Fiscal Year 2022: ¥5,980,000 (Direct Cost: ¥4,600,000、Indirect Cost: ¥1,380,000)
Keywords骨髄幹細胞
Outline of Research at the Start

我々は、急性期~亜急性期の脳梗塞や脊髄損傷患者に対して自己骨髄間葉系幹細胞(MSC)
の経静脈的投与(MSC治療)すると、持続的で著明な治療効果が得られることを経験してきた。本計画では、急性期vs 慢性期、および、脳梗塞vs 脊髄損傷における、全脳のplasticityの賦活化の詳細なメカニズムを比較解析することで、“中枢神経系全域の再生・plasticityの賦活化”という次世代の治療法の開発へ波及させることを目的とする。

Outline of Final Research Achievements

In this study, we analyzed the effects of mesenchymal stem cell (MSC) therapy on neural plasticity in both acute and chronic models of stroke and spinal cord injury. MSC therapy promoted not only local repair at the injury site but also reorganization of neural circuits in non-injured regions, contributing to recovery of motor and higher cognitive functions.

Academic Significance and Societal Importance of the Research Achievements

本研究は、骨髄間葉系幹細胞(MSC)治療が中枢神経系全体の神経可塑性を促進し、損傷部位のみならず健常領域の神経回路再構築に寄与することを初めて明らかにした。これは、既存の局所修復中心の概念を拡張し、慢性期患者への新たな治療戦略となる可能性がある。

Report

(4 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Annual Research Report
  • 2022 Annual Research Report
  • Research Products

    (12 results)

All 2025 2024 2023 2022 Other

All Int'l Joint Research (3 results) Journal Article (9 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 5 results,  Open Access: 2 results)

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

    • Related Report
      2024 Annual Research Report
  • [Int'l Joint Research] Yale University(米国)

    • Related Report
      2023 Annual Research Report
  • [Int'l Joint Research] Yale University(米国)

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Intravenous infusion of mesenchymal stem cells increased axonal signal intensity in the rubrospinal tract in spinal cord injury2025

    • Author(s)
      Hirota Ryosuke、Sasaki Masanori、Teramoto Atsushi、Yamashita Toshihiko、Kocsis Jeffery D.、Honmou Osamu
    • Journal Title

      Molecular Brain

      Volume: 18 Issue: 1 Pages: 35-35

    • DOI

      10.1186/s13041-025-01210-0

    • Related Report
      2024 Annual Research Report
  • [Journal Article] Rehabilitation facilitates functional improvement following intravenous infusion of mesenchymal stem cells in the chronic phase of cerebral ischemia in rats2024

    • Author(s)
      Yamashita Tatsuro、Sasaki Masanori、Sasaki Yuichi、Nagahama Hiroshi、Oka Shinichi、Kataoka-Sasaki Yuko、Ukai Ryo、Yokoyama Takahiro、Kobayashi Masato、Kakizawa Masafumi、Kocsis Jeffery D.、Honmou Osamu
    • Journal Title

      Brain Research

      Volume: 1825 Pages: 148709-148709

    • DOI

      10.1016/j.brainres.2023.148709

    • Related Report
      2024 Annual Research Report 2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] A Surgical Protocol for Establishing Spinal Cord Ischemia with Extended Lifespan and Low Complication Rates in Rats2024

    • Author(s)
      Yasuda Naomi、Sasaki Masanori、Kocsis Jeffery D.、Kawaharada Nobuyoshi、Honmou Osamu
    • Journal Title

      World Neurosurgery

      Volume: 188 Pages: e349-e356

    • DOI

      10.1016/j.wneu.2024.05.114

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Multiple intravenous infusions versus a single infusion of mesenchymal stem cells in a rat model of cerebral ischemia2024

    • Author(s)
      Yokoyama Takahiro、Sasaki Masanori、Nagahama Hiroshi、Kataoka-Sasaki Yuko、Ukai Ryo、Oka Shinichi、Kocsis Jeffery D.、Honmou Osamu
    • Journal Title

      Journal of Neurosurgery

      Volume: 142 Pages: 1-9

    • DOI

      10.3171/2024.6.jns241111

    • Related Report
      2024 Annual Research Report
  • [Journal Article] Mesenchymal Stem Cells and Their Extracellular Vesicles: Therapeutic Mechanisms for Blood?Spinal Cord Barrier Repair Following Spinal Cord Injury2024

    • Author(s)
      Nakazaki Masahito、Yokoyama Takahiro、Lankford Karen L.、Hirota Ryosuke、Kocsis Jeffery D.、Honmou Osamu
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 25 Issue: 24 Pages: 13460-13460

    • DOI

      10.3390/ijms252413460

    • Related Report
      2024 Annual Research Report
  • [Journal Article] Mesenchymal Stem Cell Transplantation for Spinal Cord Injury: Current Status and Prospects2023

    • Author(s)
      Hirota Ryosuke、Sasaki Masanori、Honmou Osamu、Yamashita Toshihiko
    • Journal Title

      Spine Surgery and Related Research

      Volume: 7 Issue: 4 Pages: 319-326

    • DOI

      10.22603/ssrr.2022-0234

    • ISSN
      2432-261X
    • Year and Date
      2023-07-27
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] A practical protocol for high-spatial-resolution magnetic resonance angiography for cerebral arteries in rats2023

    • Author(s)
      Nagahama Hiroshi、Sasaki Masanori、Komatsu Katsuya、Sato Kaori、Katagiri Yoshimi、Kamagata Masaki、Kataoka-Sasaki Yuko、Oka Shinichi、Ukai Ryo、Yokoyama Takahiro、Terada Kojiro、Kobayashi Masato、Kocsis Jeffery D.、Honmou Osamu
    • Journal Title

      Journal of Neuroscience Methods

      Volume: 386 Pages: 109784-109784

    • DOI

      10.1016/j.jneumeth.2023.109784

    • Related Report
      2023 Annual Research Report
  • [Journal Article] Repeated intravenous infusion of mesenchymal stem cells enhances recovery of motor function in a rat model with chronic spinal cord injury2023

    • Author(s)
      Kurihara Kota、Sasaki Masanori、Nagahama Hiroshi、Obara Hisashi、Fukushi Ryunosuke、Hirota Ryosuke、Yoshimoto Mitsunori、Teramoto Atsushi、Kocsis Jeffery D.、Yamashita Toshihiko、Honmou Osamu
    • Journal Title

      Brain Research

      Volume: 1817 Pages: 148484-148484

    • DOI

      10.1016/j.brainres.2023.148484

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Enhanced Network in Corticospinal Tracts after Infused Mesenchymal Stem Cells in Spinal Cord Injury2022

    • Author(s)
      Hirota Ryosuke、Sasaki Masanori、Kataoka-Sasaki Yuko、Oshigiri Tsutomu、Kurihara Kota、Fukushi Ryunosuke、Oka Shinichi、Ukai Ryo、Yoshimoto Mitsunori、Kocsis Jeffery D.、Yamashita Toshihiko、Honmou Osamu
    • Journal Title

      Journal of Neurotrauma

      Volume: 39 Issue: 23-24 Pages: 1665-1677

    • DOI

      10.1089/neu.2022.0106

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research

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Published: 2022-04-19   Modified: 2026-01-16  

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