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Regulatory mechanisms of vascular remodeling after ischemic stroke

Research Project

Project/Area Number 21K06406
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 46020:Anatomy and histopathology of nervous system-related
Research InstitutionKanazawa University

Principal Investigator

Takarada-Iemata Mika  金沢大学, 医学系, 助教 (40565412)

Project Period (FY) 2021-04-01 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2023: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2022: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2021: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywords脳梗塞 / 血管 / 中大脳動脈閉塞 / 虚血 / リモデリング / conditional knockout / ストレス応答 / 脳虚血 / MCAO / 梗塞巣 / VEGF
Outline of Research at the Start

脳梗塞病態における血管機能の理解は、機能障害の軽減や回復を指向する上で極めて重要である。脳虚血後の血管新生は機能回復との関連が示唆されるがその制御メカニズムは未だ不明な点が多い。脳梗塞後には組織環境は刻々と変化するため、血管新生における多細胞間の相互作用や、局所だけでなく全体像での血管機能変化を捉えることが必要となる。本研究では、血管可視化マウスを用いて脳梗塞後の血管の時空間変化を捉え、時期・部位に特徴的な血管の機能を探索し、脳梗塞病態の改善につながる分子機構の解明を目指す。

Outline of Final Research Achievements

Ischemic stroke triggers vascular remodeling, including blood-brain barrier breakdown and angiogenesis, but the regulatory mechanisms remain unclear. In this study, we revealed spatiotemporal changes in vascular properties and the emergence of novel ischemia-inducible cell population after stroke by gene expression analysis and visualization of vascular receptors and stress response in a mouse model of cerebral ischemia. The study also showed the potential to control stroke pathology by intervening in specific signaling pathways and cell populations.

Academic Significance and Societal Importance of the Research Achievements

脳血管障害は、死亡、要介護の主要な原因の1つであり、この脳血管障害の大半が脳梗塞である。現状の脳梗塞の治療は、急性期に限られごく一部の患者にしか適用されておらず、新たな治療法の開発が待ち望まれている。本研究では、脳梗塞後の血管特性の変化、および脳梗塞病態を制御する分子機構の一端を明らかにすることができた。本研究成果が、脳梗塞の新たな治療戦略の開発に貢献することが期待される。

Report

(4 results)
  • 2023 Annual Research Report   Final Research Report ( PDF )
  • 2022 Research-status Report
  • 2021 Research-status Report
  • Research Products

    (18 results)

All 2023 2022 2021

All Journal Article (9 results) (of which Int'l Joint Research: 3 results,  Peer Reviewed: 8 results,  Open Access: 5 results) Presentation (9 results) (of which Int'l Joint Research: 1 results,  Invited: 2 results)

  • [Journal Article] Postnatal expression of CD38 in astrocytes regulates synapse formation and adult social memory2023

    • Author(s)
      Hattori Tsuyoshi、Cherepanov Stanislav M、Sakaga Ryo、Roboon Jureepon、Nguyen Dinh Thi、Ishii Hiroshi、Takarada‐Iemata Mika、Nishiuchi Takumi、Kannon Takayuki、Hosomichi Kazuyoshi、Tajima Atsushi、Yamamoto Yasuhiko、Okamoto Hiroshi、Sugawara Akira、Higashida Haruhiro、Hori Osamu
    • Journal Title

      The EMBO Journal

      Volume: 42 Issue: 15 Pages: 1-15

    • DOI

      10.15252/embj.2022111247

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Neuroprotective role of calreticulin after spinal cord injury in mice2023

    • Author(s)
      Melnikova Anastasiia、Ishii Hiroshi、Tamatani Takashi、Hattori Tsuyoshi、Takarada-Iemata Mika、Hori Osamu
    • Journal Title

      Neuroscience Research

      Volume: 195 Pages: 29-36

    • DOI

      10.1016/j.neures.2023.05.005

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed
  • [Journal Article] ATF6β Deficiency Elicits Anxiety-like Behavior and Hyperactivity Under Stress Conditions2023

    • Author(s)
      Tanaka Takashi、Nguyen Dinh Thi、Kwankaew Nichakarn、Sumizono Megumi、Shinoda Reika、Ishii Hiroshi、Takarada-Iemata Mika、Hattori Tsuyoshi、Oyadomari Seiichi、Kato Nobuo、Mori Kazutoshi、Hori Osamu
    • Journal Title

      Neurochemical Research

      Volume: - Issue: 7 Pages: 2175-2186

    • DOI

      10.1007/s11064-023-03900-4

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Sympathetic Nervous Hyperactivity Impairs Microcirculation Leading to Early Brain Injury After Subarachnoid Hemorrhage2023

    • Author(s)
      Munehiro Demura、Hiroshi Ishii、Mika Takarada-Iemata、Tomoya Kamide、Akifumi Yoshikawa、Mitsutoshi Nakada、Osamu Hori
    • Journal Title

      Stroke

      Volume: - Issue: 6 Pages: 1645-1655

    • DOI

      10.1161/strokeaha.123.042799

    • Related Report
      2022 Research-status Report
    • Peer Reviewed
  • [Journal Article] Brain injury triggers cell‐type‐specific and time‐dependent endoplasmic reticulum stress responses2022

    • Author(s)
      Fan Qiyan、Takarada‐Iemata Mika、Okitani Nahoko、Tamatani Takashi、Ishii Hiroshi、Hattori Tsuyoshi、Kiryu‐Seo Sumiko、Kiyama Hiroshi、Hori Osamu
    • Journal Title

      Glia

      Volume: 71 Issue: 3 Pages: 667-681

    • DOI

      10.1002/glia.24303

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Isolation of ferret astrocytes reveals their morphological, transcriptional, and functional differences from mouse astrocytes2022

    • Author(s)
      Roboon Jureepon、Hattori Tsuyoshi、Nguyen Dinh Thi、Ishii Hiroshi、Takarada-Iemata Mika、Kannon Takayuki、Hosomichi Kazuyoshi、Maejima Takashi、Saito Kengo、Shinmyo Yohei、Mieda Michihiro、Tajima Atsushi、Kawasaki Hiroshi、Hori Osamu
    • Journal Title

      Frontiers in Cellular Neuroscience

      Volume: 16 Pages: 1-15

    • DOI

      10.3389/fncel.2022.877131

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Journal Article] Inhibition of CD38 and supplementation of nicotinamide riboside ameliorate lipopolysaccharide‐induced microglial and astrocytic neuroinflammation by increasing NAD+2021

    • Author(s)
      Roboon Jureepon、Hattori Tsuyoshi、Ishii Hiroshi、Takarada‐Iemata Mika、Nguyen Dinh Thi、Heer Collin D.、O'Meally Denis、Brenner Charles、Yamamoto Yasuhiko、Okamoto Hiroshi、Higashida Haruhiro、Hori Osamu
    • Journal Title

      Journal of Neurochemistry

      Volume: 158 Issue: 2 Pages: 311-327

    • DOI

      10.1111/jnc.15367

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The ATF6β-calreticulin axis promotes neuronal survival under endoplasmic reticulum stress and excitotoxicity2021

    • Author(s)
      Nguyen Dinh Thi、Le Thuong Manh、Hattori Tsuyoshi、Takarada-Iemata Mika、Ishii Hiroshi、Roboon Jureepon、Tamatani Takashi、Kannon Takayuki、Hosomichi Kazuyoshi、Tajima Atsushi、Taniuchi Shusuke、Miyake Masato、Oyadomari Seiichi、Tanaka Takashi、Kato Nobuo、Saito Shunsuke、Mori Kazutoshi、Hori Osamu
    • Journal Title

      Scientific Reports

      Volume: 11 Issue: 1 Pages: 13086-13086

    • DOI

      10.1038/s41598-021-92529-w

    • NAID

      120007142194

    • Related Report
      2021 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Astrocytes in the pathogenesis of multiple sclerosis2021

    • Author(s)
      Takarada-Iemata Mika、Hori Osamu
    • Journal Title

      Folia Pharmacologica Japonica

      Volume: 156 Issue: 4 Pages: 230-234

    • DOI

      10.1254/fpj.21030

    • NAID

      130008060065

    • ISSN
      0015-5691, 1347-8397
    • Related Report
      2021 Research-status Report
    • Open Access
  • [Presentation] 神経傷害が誘導する小胞体ストレス応答とグリア細胞活性化2023

    • Author(s)
      宝田 美佳、堀 修
    • Organizer
      第53回 日本神経精神薬理学会年会
    • Related Report
      2023 Annual Research Report
    • Invited
  • [Presentation] Brain injury triggers cell-type-specific and time-dependent endoplasmic reticulum stress responses2023

    • Author(s)
      Mika Takarada-Iemata, Qiyan Fan, Nahoko Okitani, Osamu Hori
    • Organizer
      第66回 日本神経化学会大会 第64回 日本神経病理学会総会学術研究会 合同大会
    • Related Report
      2023 Annual Research Report
  • [Presentation] Cell type-specific spatiotemporal induction of endoplasmic reticulum stress responses after acute brain injury.2023

    • Author(s)
      Mika Takarada-Iemata, Qiyan Fan, Nahoko Okitani, Osamu Hori
    • Organizer
      THE 50th NAITO CONFERENCE ON Glia World - Glial Cells Governing Brain Functions -
    • Related Report
      2023 Annual Research Report
    • Int'l Joint Research
  • [Presentation] Glial endoplasmic stress response in CNS pathologies2022

    • Author(s)
      Mika Takarada-Iemata, Osamu Hori
    • Organizer
      第96回 日本薬理学会年会/第43回日本臨床薬理学会学術総会
    • Related Report
      2022 Research-status Report
    • Invited
  • [Presentation] The role of vascular response in tissue remodeling after brain ischemia2022

    • Author(s)
      Mika Takarada-Iemata, Osamu Hori
    • Organizer
      第45回 日本分子生物学会
    • Related Report
      2022 Research-status Report
  • [Presentation] Endoplasmic reticulum stress response of glial cells contributes to neuronal survival after optic nerve injury2022

    • Author(s)
      Takarada-Iemata M., Okitani N., Koriyama Y., Hori O.
    • Organizer
      第127回 日本解剖学会総会・全国学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] 脳損傷後の小胞体ストレス応答細胞の変遷2022

    • Author(s)
      Takarada-Iemata M., Quiyan Fan, Osamu Hori
    • Organizer
      第95回 日本薬理学会年会
    • Related Report
      2021 Research-status Report
  • [Presentation] Brain damage triggers endoplasmic reticulum stress response in various cells over different time courses2021

    • Author(s)
      Fan Q., Takarada-Iemata M., Hori O
    • Organizer
      第81回 日本解剖学会中部支部学術集会
    • Related Report
      2021 Research-status Report
  • [Presentation] Cerebrovascular response and regulation in the ischemic brain2021

    • Author(s)
      Takarada-Iemata M., Hori O
    • Organizer
      第64回日本神経化学会
    • Related Report
      2021 Research-status Report

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Published: 2021-04-28   Modified: 2025-01-30  

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