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Development of phagocytosis-promoting red blood cell vaccines for infection and cancer after Covid-19

Research Project

Project/Area Number 23K18170
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 InstitutionHokkaido University

Principal Investigator

Matsuda Tadashi  北海道大学, 薬学研究院, 教授 (20212219)

Co-Investigator(Kenkyū-buntansha) 半田 悠  北海道大学, 医学研究院, 助教 (00844721)
室本 竜太  北海道大学, 薬学研究院, 准教授 (30455597)
鍛代 悠一  北海道大学, 薬学研究院, 助教 (90756165)
Project Period (FY) 2023-06-30 – 2025-03-31
Project Status Completed (Fiscal Year 2024)
Budget Amount *help
¥6,500,000 (Direct Cost: ¥5,000,000、Indirect Cost: ¥1,500,000)
Fiscal Year 2024: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2023: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Keywords免疫応答 / ワクチン / CD47 / 食作用 / 抗体 / 赤血球 / コロナワクチン / がんワクチン / 貪食促進
Outline of Research at the Start

パンデミック制御に有効な日本独自のワクチンの開発は非常に重要である。また、がんにおいても免疫チェックポイント阻害薬に続く新たな免疫療法の開発が期待される。特に細胞性免疫誘導性ワクチンの技術はいまだに十分には開発されていない。申請者らはコロナおよびがんワクチンとして貪食促進型赤血球ワクチンを提案する。赤血球膜蛋白CD47は赤血球がマクロファージや樹状細胞の貪食を阻止する機能を有し、CD47欠損赤血球が樹状細胞に貪食され、抗原付加CD47欠損赤血球により抗原特異的免疫応答が誘導されることから、細胞性免疫誘導性ワクチンの開発が可能である。

Outline of Final Research Achievements

We established a CD47-deficient (KO) cell line of an erythroid cell line by genome editing. We investigated whether this cell line can promote phagocytosis by dendritic cells and macrophages. WT and KO cells were differentiated into erythrocytes and co-cultured with thioglycollate-induced peritoneal macrophages (PEM) or mouse bone marrow-derived dendritic cells (BMDC), and the percentage of phagocytosed cells was examined by flow cytometry. As a result, it was confirmed that phagocytosis was enhanced in both cells. Furthermore, we demonstrated that this effect was also produced by blocking treatment with an anti-CD47 antibody. We also demonstrated that administration of calcium ionophore to erythrocytes mimicked senescent erythrocytes and promoted phagocytosis.

Academic Significance and Societal Importance of the Research Achievements

昨今、ワクチンはウイルスのみならず、がんに対しても適応を広げており、有用な免疫調節方法として重要視されている。本研究は、樹状細胞による抗原提示や抗体産生を伴うB細胞活性化制御などの免疫応答機構の新規理解と発見に基づくワクチン創製を目指すものである。特に新規標的であるCD47は、マクロファージや樹状細胞からの貪食阻止機能を有している。本研究の結果から、実際にCD47を阻害することで赤血球を人為的に樹状細胞に貪食させることを可能としている。この方法を利用することで、生体内において赤血球を担体として抗原を樹状細胞に送達し、従来のワクチンよりも効率よく安全に免疫応答を誘導することが期待される。

Report

(3 results)
  • 2024 Annual Research Report   Final Research Report ( PDF )
  • 2023 Research-status Report
  • Research Products

    (11 results)

All 2024 2023 Other

All Journal Article (4 results) (of which Peer Reviewed: 4 results,  Open Access: 1 results) Presentation (6 results) (of which Int'l Joint Research: 2 results) Remarks (1 results)

  • [Journal Article] STAP-2 facilitates insulin signaling through binding to CAP/c-Cbl and regulates adipocyte differentiation2024

    • Author(s)
      Sekine Yuichi、Kikkawa Kazuna、Honda Sachie、Sasaki Yuto、Kawahara Shoya、Mizushima Akihiro、Togi Sumihito、Fujimuro Masahiro、Oritani Kenji、Matsuda Tadashi
    • Journal Title

      Scientific Reports

      Volume: 14 Issue: 1 Pages: 5799-5799

    • DOI

      10.1038/s41598-024-56533-0

    • Related Report
      2024 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Role of Signal-Transducing Adaptor Protein-1 for T Cell Activation and Pathogenesis of Autoimmune Demyelination and Airway Inflammation2024

    • Author(s)
      Kagohashi Kota、Sasaki Yuto、Ozawa Kiyotaka、Tsuchiya Takuya、Kawahara Shoya、Saitoh Kodai、Ichii Michiko、Toda Jun、Harada Yasuyo、Kubo Masato、Kitai Yuichi、Muromoto Ryuta、Oritani Kenji、Kashiwakura Jun-ichi、Matsuda Tadashi
    • Journal Title

      The Journal of Immunology

      Volume: 212 Issue: 6 Pages: 951-961

    • DOI

      10.4049/jimmunol.2300202

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] STAP-2-Derived Peptide Suppresses TCR-Mediated Signals to Initiate Immune Responses2023

    • Author(s)
      Sasaki Yuto、Saitoh Kodai、Kagohashi Kota、Ose Toyoyuki、Kawahara Shoya、Kitai Yuichi、Muromoto Ryuta、Sekine Yuichi、Ichii Michiko、Yoshimura Akihiko、Oritani Kenji、Kashiwakura Jun-ichi、Matsuda Tadashi
    • Journal Title

      The Journal of Immunology

      Volume: 211 Issue: 5 Pages: 755-766

    • DOI

      10.4049/jimmunol.2200942

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Journal Article] STAP-2 negatively regulates BCR-mediated B cell activation by recruiting tyrosine-protein kinase CSK to LYN2023

    • Author(s)
      Kashiwakura Jun‐ichi、Kawahara Shoya、Inagaki Iori、Inui Kyosuke、Saitoh Kodai、Kagohashi Kota、Sasaki Yuto、Kobayashi Fuki、Kitai Yuichi、Muromoto Ryuta、Oritani Kenji、Matsuda Tadashi
    • Journal Title

      FEBS Letters

      Volume: 597 Issue: 19 Pages: 2433-2445

    • DOI

      10.1002/1873-3468.14730

    • Related Report
      2023 Research-status Report
    • Peer Reviewed
  • [Presentation] Possible Therapeutic Application of STAP-2-derived Peptide to Autoimmune Disease.2024

    • Author(s)
      Sasaki Y., Matsuda T., Takeda T., Okuyama F., Kashiwakura J., Oritani K.
    • Organizer
      The 9th Federation of Immunological Societies of Asia-Oceania Congress
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] STAP-1 Regulates T Cell Receptor-mediated T Cell Activation and Pathogenesis of Autoimmune Demyelination.2024

    • Author(s)
      Kawahara S., Matsuda T., Kagohashi K., Kashiwakura J., Oritani K.
    • Organizer
      The 9th Federation of Immunological Societies of Asia-Oceania Congress
    • Related Report
      2024 Annual Research Report
    • Int'l Joint Research
  • [Presentation] STAP-1 acts as a scaffold protein for positive regulation of CD40 signals in B cells.2024

    • Author(s)
      Kawahara S., Kashiwakura J., Oritani K., Matsuda T.
    • Organizer
      第53回日本免疫学会総会・学術集会
    • Related Report
      2024 Annual Research Report
  • [Presentation] STAP-1 is a novel adaptor protein to promote TCR-mediated T cell activation and autoimmune inflammation.2024

    • Author(s)
      Sasaki Y., Takeda T., Okuyama F., Kashiwakura J., Matsuda T., Oritani K.
    • Organizer
      第53回日本免疫学会総会・学術集会
    • Related Report
      2024 Annual Research Report
  • [Presentation] STAP-2-derived peptide suppresses TCR-mediated T cell activation and experimental autoimmune encephalomyelitis2024

    • Author(s)
      Kawahara S., Sasaki Y., Takeda T., Okuyama F., Kashiwakura J., Oritani K., Matsuda T.
    • Organizer
      第52回日本免疫学会総会・学術集会
    • Related Report
      2023 Research-status Report
  • [Presentation] STAP-1 は B 細胞において CD40 シグナル伝達を制御する2023

    • Author(s)
      河原生知、織谷健司 、柏倉淳一、松田 正
    • Organizer
      STAP-1 は B 細胞において CD40 シグナル伝達を制御する
    • Related Report
      2023 Research-status Report
  • [Remarks] 北海道大学大学院薬学研究院衛生化学研究室

    • URL

      http://www.pharm.hokudai.ac.jp/eisei/

    • Related Report
      2024 Annual Research Report 2023 Research-status Report

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Published: 2023-07-04   Modified: 2026-01-16  

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