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Pericyte-mediated wound healing and spontaneous functional recovery after ischemic stroke

Research Project

Project/Area Number 20H03791
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Review Section Basic Section 56010:Neurosurgery-related
Research InstitutionKyushu University

Principal Investigator

Kitazono Takanari  九州大学, 医学研究院, 教授 (70284487)

Co-Investigator(Kenkyū-buntansha) 吾郷 哲朗  九州大学, 医学研究院, 准教授 (30514202)
Project Period (FY) 2020-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2023: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2022: ¥4,030,000 (Direct Cost: ¥3,100,000、Indirect Cost: ¥930,000)
Fiscal Year 2021: ¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2020: ¥5,070,000 (Direct Cost: ¥3,900,000、Indirect Cost: ¥1,170,000)
Keywords脳梗塞 / 組織修復 / 神経機能回復 / ペリサイト / マクロファージ / オリゴデンドロサイト前駆細胞 / 細胞外マトリックス / 血管内皮前駆細胞 / 血管新生 / 機能回復 / 細胞外マトリックスタンパク質 / 免疫細胞 / 制御性T細胞
Outline of Research at the Start

脳梗塞は日本人における最大の国民病の一つである.発症予防に努めるとともに,発症後の機能回復をいかに誘導するかという視点も重要である.リハビリテーション治療のサポートを得て,多くの脳梗塞患者は発症後3-6ヶ月の経過である程度の機能回復を得ることができる.しかしながら機能回復の是非には大きな個体差があり,また,有効な薬物治療も未だ存在しない.我々は脳梗塞巣内部壊死巣における組織修復の是非が機能回復の是非に大きな影響を及ぼすことを明らかにしつつある.亜急性期以降に生じる内因性機能回復機構の詳細を解明することによって,分子標的薬による機能回復促進治療を実現できると考えている.

Outline of Final Research Achievements

We investigated the relationship between tissue repair and functional recovery after brain infarction using a mouse permanent middle cerebral artery occlusion model. We have demonstrated that the recruitment of pericytes around endothelial cells within infarct areas that occurs after brain infarction not only contributes to the generation of blood flow and BBB reconstruction, but also plays a decisive role in macrophage recruitment, debris removal, and fibrotic tissue repair within infarct areas. Furthermore, we have elucidated the mechanism by which intra-infarct tissue repair induces neurological function recovery and proposed the concept of “wound healing in brain infarction”. The tissue repair mediated by pericytes and macrophages within infarct areas occurring during the subacute stage is considered to be a viable therapeutic target for functional recovery after brain infarction.

Academic Significance and Societal Importance of the Research Achievements

脳梗塞は日本人の代表的国民病である。近年rt-PA静注療法や脳血管カテーテルによる血栓除去療法など超急性期治療が急速に普及してきたが,急性期以降の機能回復を促進する薬物治療は未だ存在しない.発症後1-3ヶ月の間に生じる内因性機能回復には個体差もあるが、その分子細胞機構も未だ不明である.高齢化社会における寝たきり・介護を減らすためには、脳梗塞機能回復過程の分子細胞機構を解明し、新たな治療法を開発することが喫緊の課題である。本研究課題は、脳梗塞亜急性期以降に生じる脳梗塞内部の組織修復が機能回復をもたらすことを明らかにし、この観点から治療開発を目指すものである。

Report

(5 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Annual Research Report
  • 2021 Annual Research Report
  • 2020 Annual Research Report
  • Research Products

    (34 results)

All 2024 2023 2022 2021 2020 Other

All Journal Article (14 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 10 results,  Open Access: 5 results) Presentation (16 results) (of which Int'l Joint Research: 4 results,  Invited: 10 results) Book (1 results) Remarks (3 results)

  • [Journal Article] FLAIR hyperintense cortical lesions in anti-myelin oligodendrocyte glycoprotein antibody-associated encephalitis with seizure following SARS-CoV-2 mRNA vaccination2024

    • Author(s)
      Yoshino Fumitaka、Ozaki Yuichi、Shibahara Tomoya、Matsuoka Mikiaki、Tachibana Masaki、Ago Tetsuro、Kitazono Takanari、Kuroda Junya、Nakane Hiroshi
    • Journal Title

      eNeurologicalSci

      Volume: 34 Pages: 100492-100492

    • DOI

      10.1016/j.ensci.2023.100492

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Pericyte-Mediated Molecular Mechanisms Underlying Tissue Repair and Functional Recovery after Ischemic Stroke2023

    • Author(s)
      Nakamura Kuniyuki、Ago Tetsuro
    • Journal Title

      Journal of Atherosclerosis and Thrombosis

      Volume: 30 Issue: 9 Pages: 1085-1094

    • DOI

      10.5551/jat.RV22007

    • ISSN
      1340-3478, 1880-3873
    • Year and Date
      2023-09-01
    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Association between decreases in serum uric acid levels and unfavorable outcomes after ischemic stroke: A multicenter hospital-based observational study2023

    • Author(s)
      Nakamura Kuniyuki、Ueki Kana、Matsuo Ryu、Kiyohara Takuya、Irie Fumi、Wakisaka Yoshinobu、Ago Tetsuro、Kamouchi Masahiro、Kitazono Takanari、on behalf of the Fukuoka Stroke Registry Investigators
    • Journal Title

      PLOS ONE

      Volume: 18 Issue: 6 Pages: e0287721-e0287721

    • DOI

      10.1371/journal.pone.0287721

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Decreased Estimated Glomerular Filtration Rate and Proteinuria and Long-Term Outcomes After Ischemic Stroke: A Longitudinal Observational Cohort Study2023

    • Author(s)
      Ueki Kana、Matsuo Ryu、Kuwashiro Takahiro、Irie Fumi、Wakisaka Yoshinobu、Ago Tetsuro、Kamouchi Masahiro、Kitazono Takanari、on behalf of the Investigators for Fukuoka Stroke Registry
    • Journal Title

      Stroke

      Volume: Online ahead of print Issue: 5 Pages: 1268-1277

    • DOI

      10.1161/strokeaha.122.040958

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] PDGFRβ-positive cell-mediated post-stroke remodeling of fibronectin and laminin α2 for tissue repair and functional recovery2022

    • Author(s)
      Shibahara Tomoya、Nakamura Kuniyuki、Wakisaka Yoshinobu、Shijo Masahiro、Yamanaka Kei、Takashima Masamitsu、Takaki Hayato、Hidaka Masaoki、Kitazono Takanari、Ago Tetsuro
    • Journal Title

      Journal of Cerebral Blood Flow & Metabolism

      Volume: 43 Issue: 4 Pages: 518-530

    • DOI

      10.1177/0271678x221145092

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Deletion of Nox4 enhances remyelination following cuprizone‐induced demyelination by increasing phagocytic capacity of microglia and macrophages in mice2022

    • Author(s)
      Yamanaka Kei、Nakamura Kuniyuki、Shibahara Tomoya、Takashima Masamitsu、Takaki Hayato、Hidaka Masaoki、Komori Motohiro、Yoshikawa Yoji、Wakisaka Yoshinobu、Ago Tetsuro、Kitazono Takanari
    • Journal Title

      Glia

      Volume: 71 Issue: 3 Pages: 541-559

    • DOI

      10.1002/glia.24292

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] Low-dose sodium-glucose cotransporter 2 inhibitor ameliorates ischemic brain injury in mice through pericyte protection without glucose-lowering effects2022

    • Author(s)
      Takashima Masamitsu、Nakamura Kuniyuki、Kiyohara Takuya、Wakisaka Yoshinobu、Hidaka Masaoki、Takaki Hayato、Yamanaka Kei、Shibahara Tomoya、Wakisaka Masanori、Ago Tetsuro、Kitazono Takanari
    • Journal Title

      Communications Biology

      Volume: 5 Issue: 1 Pages: 653-653

    • DOI

      10.1038/s42003-022-03605-4

    • Related Report
      2022 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] 単なる壁細胞ではない 脳機能遂行の鍵を握るペリサイト2022

    • Author(s)
      日高壮意, 吾郷哲朗
    • Journal Title

      Clinical Neuroscience

      Volume: 40 Pages: 1522-1525

    • Related Report
      2022 Annual Research Report
  • [Journal Article] Neurovascular unit - 脳梗塞発症から機能回復まで.2022

    • Author(s)
      吾郷哲朗
    • Journal Title

      医学のあゆみ

      Volume: 280 Pages: 1020-1027

    • Related Report
      2021 Annual Research Report
  • [Journal Article] 脳微小循環とNeurovascular Unit2022

    • Author(s)
      吾郷哲朗
    • Journal Title

      日本臨床

      Volume: 80 Pages: 118-124

    • Related Report
      2021 Annual Research Report
  • [Journal Article] 脳虚血病態におけるペリサイト機能の重要性2022

    • Author(s)
      吾郷哲朗
    • Journal Title

      日本臨床

      Volume: 80 Pages: 644-649

    • Related Report
      2021 Annual Research Report
  • [Journal Article] β-Cell Function and Clinical Outcome in Nondiabetic Patients With Acute Ischemic Stroke2021

    • Author(s)
      Kiyohara Takuya et al.
    • Journal Title

      Stroke

      Volume: 52 Issue: 8 Pages: 2621-2628

    • DOI

      10.1161/strokeaha.120.031392

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Pre-Stroke Cholinesterase Inhibitor Treatment Is Beneficially Associated with Functional Outcome in Patients with Acute Ischemic Stroke and Pre-Stroke Dementia: The Fukuoka Stroke Registry2021

    • Author(s)
      Wakisaka Yoshinobu、Matsuo Ryu、Nakamura Kuniyuki、Ago Tetsuro、Kamouchi Masahiro、Kitazono Takanari、on behalf of the Fukuoka Stroke Registry Investigators
    • Journal Title

      Cerebrovascular Diseases

      Volume: online Issue: 4 Pages: 1-7

    • DOI

      10.1159/000514368

    • Related Report
      2021 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Reciprocal Interaction Between Pericytes and Macrophage in Poststroke Tissue Repair and Functional Recovery2020

    • Author(s)
      Shibahara Tomoya、Ago Tetsuro、Tachibana Masaki、Nakamura Kuniyuki、Yamanaka Kei、Kuroda Junya、Wakisaka Yoshinobu、Kitazono Takanari
    • Journal Title

      Stroke

      Volume: 51 Issue: 10 Pages: 3095-3106

    • DOI

      10.1161/strokeaha.120.029827

    • Related Report
      2020 Annual Research Report
    • Peer Reviewed
  • [Presentation] Nox4遺伝子修飾による動物疾患モデルにおける表現型変化2023

    • Author(s)
      吾郷哲朗
    • Organizer
      第96回日本生化学会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] The Fukuoka Stroke Registry2023

    • Author(s)
      Ago Tetsuro, Matsuo Ryu, Kamouchi Masahiro, Kitazono Takanari
    • Organizer
      International Conference STROKE UPDATE 2023 & 11th Japan-Korea Joint Stroke Conference
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] NOX4 plays crucial role in angiogenic responses and in recruitment of pericytes and macrophages in poststroke tissue repair2023

    • Author(s)
      Nakamura Kuniyuki, Hidaka Masaoki, Yoshino Fumitaka, Takashima Masamitsu, Kiyohara Takuya, Wakisaka Yoshinobu, Kitazono Takanari, Ago Tetsuro
    • Organizer
      Neuroscience 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Macrophage infiltration is required for pericyte recruitment in poststroke tissue repair2023

    • Author(s)
      Hidaka Masaoki, Nakamura Kuniyuki, Yoshino Fumitaka, Takashima Masamitsu, Kiyohara Takuya, Wakisaka Yoshinobu, Kitazono Takanari, Ago Tetsuro
    • Organizer
      Neuroscience 2023
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 「どうすれば脳梗塞後機能回復を向上させることができるか?」2023

    • Author(s)
      吾郷哲朗,中村晋之,清原卓也,脇坂義信,北園孝成
    • Organizer
      第48回日本脳卒中学会学術総会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] ペリサイトを標的とした脳梗塞治療戦略2023

    • Author(s)
      中村晋之,吾郷哲朗,清原卓也,脇坂義信,北園孝成
    • Organizer
      第48回日本脳卒中学会学術総会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Roles of Pericyte in brain health and cerebrovascular diseases2023

    • Author(s)
      Ago Tetsuro
    • Organizer
      第100回日本生理学会大会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] 脳虚血におけるペリサイトの役割」2022

    • Author(s)
      吾郷哲朗,北園孝成
    • Organizer
      第65回日本脳循環代謝学術学会
    • Related Report
      2022 Annual Research Report
    • Invited
  • [Presentation] Polyvascular Atherosclerotic Disease-脳梗塞におけるトピックス-2022

    • Author(s)
      吾郷哲朗,北園孝成
    • Organizer
      第54回日本動脈硬化学会総会学術集会
    • Related Report
      2022 Annual Research Report
  • [Presentation] 脳虚血病態における細胞間連関と臓器連関- 新たな治療標的は何か?2021

    • Author(s)
      吾郷哲朗
    • Organizer
      第74回日本自律神経学会総会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] 脳血管障害ハイリスク患者再発予防のキモ2021

    • Author(s)
      吾郷哲朗
    • Organizer
      第43回日本高血圧学会総会
    • Related Report
      2021 Annual Research Report
    • Invited
  • [Presentation] Reciprocal interaction between pericytes and macrophage in post-stroke tissue repair and functional recovery.2021

    • Author(s)
      Tetsuro Ago
    • Organizer
      International Stroke Conference 2021
    • Related Report
      2020 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] 梗塞の病態解明:基礎研究と臨床研究の融合を目指して2021

    • Author(s)
      北園 孝成
    • Organizer
      STROKE 2021 (会長講演)
    • Related Report
      2020 Annual Research Report
  • [Presentation] 脳梗塞後のペリサイト-アストロサイト-細胞外マトリックス連関を介した組織修復および機能回復2021

    • Author(s)
      中村 晋之,吾郷 哲朗,芝原 友也,脇坂 義信,北園 孝成
    • Organizer
      STROKE 2021
    • Related Report
      2020 Annual Research Report
    • Invited
  • [Presentation] 脳梗塞後の組織修復および機能回復に関わる細胞外マトリックスタンパク質の再構築2021

    • Author(s)
      芝原 友也,中村 晋之,脇坂 義信,山中 圭,高島 正光,高木 勇人,吾郷 哲朗,北園 孝成
    • Organizer
      STROKE 2021 (学会賞受賞)
    • Related Report
      2020 Annual Research Report
  • [Presentation] 内皮細胞における活性酸素種産生酵素Nox4は脳梗塞後の炎症の促進および血管新生に関与する2021

    • Author(s)
      吉川 容司,中村 晋之,吾郷 哲朗,高木 勇人,山中 圭,脇坂 義信,大星 博明,北園 孝成
    • Organizer
      STROKE 2021
    • Related Report
      2020 Annual Research Report
  • [Book] 必携脳卒中ハンドブック(改訂第4版)2024

    • Author(s)
      吉野文隆,吾郷哲朗
    • Total Pages
      5
    • Publisher
      診断と治療社
    • ISBN
      9784787826169
    • Related Report
      2023 Annual Research Report
  • [Remarks] 九州大学大学院医学研究院病態機能内科学 脳循環代謝研究室

    • URL

      https://www.intmed2.med.kyushu-u.ac.jp/stroke/

    • Related Report
      2023 Annual Research Report
  • [Remarks] 福岡脳卒中データベース Fukuoka Stroke Registry

    • URL

      https://fsr.hcam.med.kyushu-u.ac.jp

    • Related Report
      2023 Annual Research Report
  • [Remarks] 九州大学大学院 医学研究院 病態機能内科学 脳循環代謝研究室

    • URL

      https://www.intmed2.med.kyushu-u.ac.jp/stroke/

    • Related Report
      2021 Annual Research Report

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Published: 2020-04-28   Modified: 2025-01-30  

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