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Development of novel therapeutics against emerging infectious diseases by targeting blood–brain barrier

Research Project

Project/Area Number 22K19394
Research Category

Grant-in-Aid for Challenging Research (Exploratory)

Allocation TypeMulti-year Fund
Review Section Medium-sized Section 47:Pharmaceutical sciences and related fields
Research InstitutionNational Institute of Health Sciences

Principal Investigator

Kanda Yasunari  国立医薬品食品衛生研究所, 薬理部, 部長 (70510387)

Co-Investigator(Kenkyū-buntansha) 坡下 真大  名古屋市立大学, 医薬学総合研究院(薬学), 講師 (20613384)
Project Period (FY) 2022-06-30 – 2024-03-31
Project Status Completed (Fiscal Year 2023)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2023: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2022: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
KeywordsiPS細胞 / COVID-19 / SARS-CoV-2 / 脳毛細血管内皮細胞 / 血液脳関門 / Wnt / 後遺症 / バリアー機能 / 新型コロナウイルス / long COVID-19 / ヒトiPS細胞 / 炎症 / 新興感染症 / 病態モデル / iPSC
Outline of Research at the Start

現在、世界中で猛威を奮っている新型コロナウイルス感染症を引き起こすSARS-CoV-2は重篤な肺炎を引き起こすだけでなく、重症化時に様々な神経症状を引き起こす。しかしながら、中枢神経系に感染するメカニズムは明らかになっていない。そこで、本研究では、ヒトiPS細胞から血液脳関門を作製し、SARS-CoV-2の感染メカニズムを検討する。また、感染によるウイルス受容体ACE2の局在変化を基に、新型コロナウイルス感染症の治療・予防が可能な医薬品を開発する。以上により、新興感染症に向けた技術基盤を確立することが期待される。

Outline of Final Research Achievements

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) causes coronavirus disease 2019 (COVID-19) is associated with various neurological symptoms. Here we investigated the effect of SARS-CoV-2 on the CNS. We found that iPSC-derived brain microvascular endothelial like cells (iPSC-BMELCs) were infected with SARS-CoV-2 via its ACE2 receptor. SARS-CoV-2 infection resulted in decrease in TEER and induction of several proinflammatory genes, which are known to be elevated in patients with COVID-19. Furthermore, RNA-seq analysis revealed that SARS-CoV-2 targeted canonical pathway of Wnt signaling in iPSC-BMELCs. The Wnt activator partially inhibited the infection and the subsequent inflammatory responses. These findings suggest that SARS-CoV-2 infection causes BBB dysfunction via Wnt signaling. Thus, iPSC-BMELCs are a useful in vitro model for elucidating COVID-19 neuropathology and drug development.

Academic Significance and Societal Importance of the Research Achievements

COVID-19重症化時に様々な神経症状を引き起こすことが知られており、long COVID-19と呼ばれるような長期症状が懸念されている。本研究において、血液脳関門の構成細胞である脳毛細血管内皮細胞を用いてSARS-CoV-2感染メカニズムを明らかにすることができることを明らかにした。これによりCOVID-19の病態メカニズムを解明し、long COVID-19の克服に向けて新たな治療薬や診断マーカーなどの開発につながることが期待できる。

Report

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

    (15 results)

All 2024 2023 2022

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 4 results) Presentation (11 results) (of which Int'l Joint Research: 6 results,  Invited: 3 results)

  • [Journal Article] SARS-CoV-2 causes dysfunction in human iPSC-derived brain?microvascular endothelial cells potentially by modulating the Wnt signaling pathway2024

    • Author(s)
      Yamada Shigeru、Hashita Tadahiro、Yanagida Shota、Sato Hiroyuki、Yasuhiko Yukuto、Okabe Kaori、Noda Takamasa、Nishida Motohiro、Matsunaga Tamihide、Kanda Yasunari
    • Journal Title

      Fluids and Barriers of the CNS

      Volume: 21 Issue: 1 Pages: 32-32

    • DOI

      10.1186/s12987-024-00533-9

    • Related Report
      2023 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] TRPC3-Nox2 Protein Complex Formation Increases the Risk of SARS-CoV-2 Spike Protein-Induced Cardiomyocyte Dysfunction through ACE2 Upregulation.2022

    • Author(s)
      Kato Y, Nishiyama K, Man Lee J, Ibuki Y, Imai Y, Noda T, Kamiya N, Kusakabe T, Kanda Y, Nishida M.
    • Journal Title

      International Journal of Molecular Sciences

      Volume: 24 Issue: 1 Pages: 102-102

    • DOI

      10.3390/ijms24010102

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] SARS-CoV-2 induces barrier damage and inflammatory responses in the human iPSC-derived intestinal epithelium2022

    • Author(s)
      Yamada S, Noda T, Okabe K, Yanagida S, Nishida M, Kanda Y.
    • Journal Title

      Journal of Pharmacological Sciences

      Volume: 149 Issue: 3 Pages: 139-146

    • DOI

      10.1016/j.jphs.2022.04.010

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Journal Article] Drug repurposing for the treatment of COVID-192022

    • Author(s)
      Kato Y, Nishiyama K, Nishimura A, Noda T, Okabe K, Kusakabe T, Kanda Y, Nishida M.
    • Journal Title

      Journal of Pharmacological Sciences

      Volume: 149 Issue: 3 Pages: 108-114

    • DOI

      10.1016/j.jphs.2022.04.007

    • Related Report
      2022 Research-status Report
    • Peer Reviewed / Open Access
  • [Presentation] SARS-CoV-2感染によるヒト血液脳関門のバリア機能低下2023

    • Author(s)
      山田茂、坡下真大、柳田翔太、佐藤寛之、安彦行人、岡部馨、野田隆政、西田基宏、松永民秀、諫田泰成
    • Organizer
      日本薬理学会関東部会
    • Related Report
      2023 Annual Research Report
  • [Presentation] ヒトiPS細胞由来脳微小血管内皮様細胞のバリア機能に対するSARS-CoV-2感染の影響2023

    • Author(s)
      柳田翔太、山田茂、坡下真大、佐藤寛之、安彦行人、岡部馨、野田隆正、西田基宏、松永民秀、諫田泰成
    • Organizer
      フォーラム2023 衛生薬学・環境トキシコロジー
    • Related Report
      2023 Annual Research Report
  • [Presentation] hiPSC-derived neural cells for chemical toxicity evaluation2023

    • Author(s)
      Yasunari Kanda
    • Organizer
      Inaugural International Scientific Conference of the SAAT- SL
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] パンデミックの不確実性と創薬2023

    • Author(s)
      諫田泰成
    • Organizer
      第35回 自然科学研究機構シンポジウム
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Current status and future challenge of developmental neurotoxicity2022

    • Author(s)
      Yasunari Kanda
    • Organizer
      3rd Asian Congress for Alterative to Animal Experiment
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of SARS-CoV-2 infection model using human iPSC2022

    • Author(s)
      Yasunari Kanda
    • Organizer
      The 21st International Congress of the European Society of Toxicology In Vitro
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] Current status and future perspectives of toxicity testing using stem cell-derived 3D models2022

    • Author(s)
      Yasunari Kanda
    • Organizer
      ICT2022
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research / Invited
  • [Presentation] Development of SARS-CoV-2 infection model using human iPSC-derived cardiomyocytes2022

    • Author(s)
      Satsuka A, Yamada S, Yanagida S, Hayashi S, Asakura H, Nishida M.
    • Organizer
      24th Japan-Korea Joint Seminar on Pharmacology
    • Related Report
      2022 Research-status Report
    • Int'l Joint Research
  • [Presentation] COVID-19の病態メカニズムに基づく創薬への展開2022

    • Author(s)
      諫田泰成, 西田基宏
    • Organizer
      第96回日本薬理学会年会
    • Related Report
      2022 Research-status Report
  • [Presentation] ヒト iPS 細胞由来分化細胞を用いた SARS-CoV-2 感染モデルの開発2022

    • Author(s)
      諫田泰成
    • Organizer
      第49回日本毒性学会学術年会
    • Related Report
      2022 Research-status Report
  • [Presentation] ヒトiPS細胞由来小腸上皮細胞を用いたSARS-CoV-2感染モデルの開発2022

    • Author(s)
      山田茂, 野田隆政, 岡部かおり, 柳田翔太, 西田基宏, 諫田泰成
    • Organizer
      第96回日本薬理学会年会
    • Related Report
      2022 Research-status Report

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Published: 2022-07-05   Modified: 2025-01-30  

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