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Development of novel therapeutics for acute phase of cerebral infarction targeting neurosecretory peptides

Research Project

Project/Area Number 17K09746
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Research Field Neurology
Research InstitutionChiba University

Principal Investigator

Yamaguchi Atsushi  千葉大学, 大学院医学研究院, 教授 (00314336)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,550,000 (Direct Cost: ¥3,500,000、Indirect Cost: ¥1,050,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2017: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Keywords脳梗塞 / 神経内分泌性因子 / 神経分泌性ペプチド
Outline of Final Research Achievements

Treatment in the acute phase of cerebral infarction is roughly classified into revascularization therapy and neuroprotective therapy. In the former case, thrombolytic therapy or cerebrovascular therapy is performed during the hyperacute phase (within 8 hours after cerebral infarction), but the indication is limited. The development of treatments such as neuroprotective drugs is urgent. In this study, we performed a mouse cerebral infarction model to verify the neuroprotective effects of neurosecretory peptides induced during the acute phase of cerebral infarction and to analyze the pathology of long-term cerebral infarction from the acute to the chronic phase. Although no neuroprotective effect of the peptide was observed, long-term persistence of inflammatory findings after cerebral infarction (4 weeks) was confirmed, suggesting that inflammatory control after cerebral infarction may be important as a therapeutic target.

Academic Significance and Societal Importance of the Research Achievements

脳血管障害は日本人の死因の第4位であり、65歳以上の要介護患者の原因の第1位を占め、入院となる原因疾患の第1位である。なかでも脳梗塞は脳血管障害の約6-7割を占め、その予防法や治療法の開発は急務である。脳梗塞の超急性期の治療法である血管再開通療法の適応患者は限定されるため、急性期以降の病態解明や神経保護薬の開発も肝要である。当該研究ではマウス脳梗塞モデルを用い急性期に誘導される神経分泌ペプチドの神経保護効果の検証と、脳梗塞の長期的病態解析を施行した。脳梗塞後の長期的な炎症持続を認め、脳梗塞後の炎症制御が重要である可能性が示唆された。

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Research-status Report
  • 2017 Research-status Report
  • Research Products

    (7 results)

All 2020 2019 2018

All Journal Article (4 results) (of which Peer Reviewed: 2 results,  Open Access: 2 results) Presentation (3 results)

  • [Journal Article] White Matter Dissection and Structural Connectivity of the Human Vertical Occipital Fasciculus to Link Vision-Associated Brain Cortex2020

    • Author(s)
      Tatsuya Jitsuishi, Seiichiro Hirono, Tatsuya Yamamoto, Keiko Kitajo, Yasuo Iwadate, Atsushi Yamaguchi
    • Journal Title

      Scientific Reports

      Volume: 10 (1) Issue: 1 Pages: 820-820

    • DOI

      10.1038/s41598-020-57837-7

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Temporal expression profiling of DAMPs-related genes revealed the biphasic postischemic inflammation in the experimental stroke model2020

    • Author(s)
      Atsushi Yamaguchi *, Tatsuya Jitsuishi, Takashi Hozumi, Jun Iwanami, Keiko Kitajo, Hiroo Yamaguchi, Yasutake Mori, Masaki Mogi, Setsu Sawai
    • Journal Title

      Molecular Brain

      Volume: in press

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] PETおよびfMRI2018

    • Author(s)
      山本達也、朝比奈正人、桑原聡、山口淳
    • Journal Title

      Clinical Neuroscience

      Volume: 36 Pages: 60-62

    • Related Report
      2017 Research-status Report
  • [Journal Article] 電気生理学的検査2018

    • Author(s)
      山本達也、朝比奈正人、桑原聡、山口淳
    • Journal Title

      Clinical Neuroscience

      Volume: 36 Pages: 63-65

    • Related Report
      2017 Research-status Report
  • [Presentation] 背側と腹側の視覚伝導路を連絡する神経伝導路の白質解剖2019

    • Author(s)
      實石達也, 廣野誠一郎,山本達也,北城敬子,小宮山政敏,岩立康男, 山口淳
    • Organizer
      第124回 日本解剖学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 腹側と背側視覚伝導路を連結する鉛直束(VOF)の白質解剖と神経束構成2019

    • Author(s)
      山口 淳, 廣野 誠一郎, 山本 達也 , 北城 敬子, 岩立 康男, 實石 達也
    • Organizer
      第42回 日本神経科学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 背側と腹側の視覚伝導路を連絡する神経伝導路の白質解剖2019

    • Author(s)
      實石達也, 廣野誠一郎,山本達也,北城敬子,小宮山政敏,岩立康男, 山口淳
    • Organizer
      日本解剖学会
    • Related Report
      2018 Research-status Report

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Published: 2017-04-28   Modified: 2021-02-19  

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