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Highly efficient neuronal regeneration through regulation of protease activity for the treatment of ischemic brain injury

Research Project

Project/Area Number 20KK0381
Research Category

Fund for the Promotion of Joint International Research (Fostering Joint International Research (A))

Allocation TypeMulti-year Fund
Review Section Basic Section 47040:Pharmacology-related
Research InstitutionKyoto Pharmaceutical University

Principal Investigator

Kawashita Eri  京都薬科大学, 薬学部, 助教 (80509266)

Project Period (FY) 2021 – 2023
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥12,350,000 (Direct Cost: ¥9,500,000、Indirect Cost: ¥2,850,000)
Keywords脳梗塞 / 新生児低酸素性虚血性脳症 / 線溶 / ニューロセルピン / α2-アンチプラスミン / セルピン / α2アンチプラスミン / 神経再生 / 虚血性脳疾患 / セリンプロテアーゼ
Outline of Research at the Start

虚血性脳疾患に対する再生療法におけるneural replacement効果は極めて低いため、この効果を向上する治療戦略の確立が必要である。基課題の実施により、脳梗塞モデルでの、α2アンチプラスミン(α2AP)の機能抑制による内因性神経新生の促進および移植神経細胞の生着性の向上が期待できるが、本国際共同研究では、α2AP機能の抑制と、虚血性神経毒性を抑制するニューロセルピンとのコンビネーションにより、脳梗塞および新生児低酸素性虚血性脳症に対する神経再生療法のさらなる高効率化を目指す。

Outline of Final Research Achievements

α2-Antiplasmin (α2AP) and neuroserpin (NSP), members of the serine protease inhibitor (serpin) family, are known as principal physiological inhibitors of plasmin and tissue plasminogen activator (tPA), respectively. In this international joint research study, we demonstrated a protective effect of NSP against brain damage in adult stroke and mild neonatal hypoxic-ischaemic encephalopathy (HIE) mouse models by suppressing ER stress and/or oxidative stress. In addition, we found that α2AP deficiency promotes endogenous neurogenesis in the subventricular zone in a stroke mouse model. These findings suggest that combination of exogeneous neuroserpin and α2AP inhibition could be a candidate pharmacotherapy of stroke and neonatal HIE.

Academic Significance and Societal Importance of the Research Achievements

脳梗塞や新生児HIEなどの虚血性脳疾患に対する治療において、発症後に失われた神経機能を再生・回復させる薬物治療は存在しない。脳虚血による神経機能障害は高確率で発生し、患者やその家族に対して大きな精神的・経済的苦痛をもたらすことから、虚血性脳疾患に対するneural replacement療法の開発は重要課題の一つである。本研究により、脳梗塞や新生児HIEにおいて、NSP投与による神経保護効果およびα2AP欠損による神経新生促進効果が明確になった。この成果は、脳梗塞および新生児HIEを含む虚血性疾患におけるneural replacementの高効率化を目指した薬物療法の実現化に繋がる。

Report

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

    (13 results)

All 2024 2023 2022 2021

All Int'l Joint Research (1 results) Journal Article (2 results) (of which Int'l Joint Research: 2 results,  Peer Reviewed: 2 results,  Open Access: 1 results) Presentation (10 results) (of which Int'l Joint Research: 4 results)

  • [Int'l Joint Research] オックスフォード大学(英国)2021

    • Year and Date
      2021-09-13
    • Related Report
      2023 Annual Research Report
  • [Journal Article] Neuroserpin alleviates cerebral ischemia/reperfusion injury by suppressing ischemia-induced endoplasmic reticulum stress2024

    • Author(s)
      Yumei Liao, Qinghua Zhang, Qiaoyun Shi, Peng Liu, Peiyun Zhong, Lingling Guo, Zijian Huang, Yinghui Peng, Wei Liu, Shiqing Zhang, Istvan Adorjan, Yumi Fukuzaki, Eri Kawashita, Xiao-Qi Zhang, Nan Ma, Xiaoshen Zhang, Zoltan Molnar, Lei Shi
    • Journal Title

      Neural Regeneration Research

      Volume: -

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Journal Article] The role of snare proteins in cortical development.2023

    • Author(s)
      Auguste Vadisiute, Elise Meijer, Florina Szab, Anna Hoerder-Suabedissen, Eri Kawashita, Shuichi Hayashi, Zoltan Molnar.
    • Journal Title

      Dev. Neurobiol. (Review)

      Volume: 82 Issue: 6 Pages: 457-475

    • DOI

      10.1002/dneu.22892

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access / Int'l Joint Research
  • [Presentation] 脳血管形成におけるα2-アンチプラスミンの関与2024

    • Author(s)
      岡村萌子,河下映里,石原慶一,依馬正次,松尾 理,秋葉 聡.
    • Organizer
      日本薬学会第144年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] α2-アンチプラスミン欠損による脳梗塞後の神経芽細胞の産生と移動の促進2024

    • Author(s)
      小髙春香,河下映里,永井信夫,石原慶一,西村美紅,乾菜々子,松尾 理,秋葉 聡.
    • Organizer
      日本薬学会第144年会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 脳血管発達におけるα2-antiplasminの関与2024

    • Author(s)
      河下映里
    • Organizer
      第7回Neuro-Vascular研究会
    • Related Report
      2023 Annual Research Report
  • [Presentation] 脳梗塞後の神経新生におけるα2-antiplasminの関与2023

    • Author(s)
      西村美紅, 河下映里, 永井信夫, 石原慶一, 井上和奏, 宮崎優奈, 松尾 理, 秋葉 聡.
    • Organizer
      日本薬学会第143年会
    • Related Report
      2022 Research-status Report
  • [Presentation] 移植神経前駆細胞の生存と成熟化におけるα2-アンチプラスミンの関与の検討2023

    • Author(s)
      三崎友菜, 河下映里, 西村周泰, 石原慶一, 野口鈴華, 高田和幸, 松尾 理, 秋葉 聡.
    • Organizer
      日本薬学会第143年会
    • Related Report
      2022 Research-status Report
  • [Presentation] セルピンによる脳機能調節と虚血性脳疾患治療への展開2023

    • Author(s)
      河下映里.
    • Organizer
      第6回Neuro-Vascular 研究会
    • Related Report
      2022 Research-status Report
  • [Presentation] Neuroprotective effect of neuroserpin in a mouse model of neonatal hypoxic-ischaemic encephalopathy2022

    • Author(s)
      Eri Kawashita, Jan Fischer, Yumi Fukuzaki, Lancelot Millar, Peiyun Zhong, Anna Hoerder-Suabedissen, Lei Shi, Zoltan Molnar.
    • Organizer
      Neuro 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Neuroserpin as a promising candidate for neuroprotection in neonatal hypoxic-ischaemic encephalopathy2022

    • Author(s)
      Eri Kawashita, Jan Fischer, Yumi Fukuzaki, Lancelot Millar, Peiyun Zhong, Anna Hoerder-Suabedissen, Lei Shi, Zoltan Molnar.
    • Organizer
      Cortical Development Conference 2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Neuroserpin as a promising candidate for neuroprotection in neonatal hypoxic-ischaemic encephalopathy2022

    • Author(s)
      Eri Kawashita, Jan Fischer, Yumi Fukuzaki, Lancelot Millar, Peiyun Zhong, Anna Hoerder-Suabedissen, Lei Shi, Zoltan Molnar
    • Organizer
      Cortical Development Conference 2022
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research
  • [Presentation] Neuroprotective effect of neuroserpin in a mouse model of neonatal hypoxic-ischaemic encephalopathy2022

    • Author(s)
      Eri Kawashita, Jan Fischer, Yumi Fukuzaki, Lancelot Millar, Peiyun Zhong, Anna Hoerder-Suabedissen, Lei Shi, Zoltan Molnar
    • Organizer
      Neuro 2022
    • Related Report
      2021 Research-status Report
    • Int'l Joint Research

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Published: 2021-03-19   Modified: 2025-01-30  

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