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Development of Cancer Vaccine Using Mesoporous Silica Nanoparticles

Research Project

Project/Area Number 18K12089
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeMulti-year Fund
Section一般
Review Section Basic Section 90120:Biomaterials-related
Research InstitutionSojo University

Principal Investigator

GOTO Koichi  崇城大学, 生物生命学部, 教授 (30279377)

Project Period (FY) 2018-04-01 – 2021-03-31
Project Status Completed (Fiscal Year 2020)
Budget Amount *help
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Keywordsメソポーラスシリカナノ粒子 / がんワクチン / ペプチド抗原 / 樹状細胞 / 免疫誘導 / 抗原提示細胞 / 獲得免疫
Outline of Final Research Achievements

In this study, we investigated the induction effects of MSN including cancer antigens on the cancer immunotherapy. The flow cytometric measurement and the confocal laser scanning microscopy showed that FITC labeled MSN accumulated into the mouse dendritic cells (DC2.4 cells) in vitro. The vaccination effects of MSN including antigen peptides (OVA257-264, OVA265-280) on the C57BL/6 mice with implanted lymphoma cells (E.G7-OVA cells) were examined, and the prolonged survival was observed in the mice inoculated with MSN vaccines as compared with the control in vivo. Furthermore, IFN-gamma ELISPOT assay indicated the activity of CD8+ cells in the splenocytes from the mice and the splenocytes had a tendency to increase the cytotoxicity to E.G7-OVA cells. These results suggested that MSN vaccines could be a novel nanovaccine for the cancer immunotherapy.

Academic Significance and Societal Importance of the Research Achievements

MSNは、化学的安定性に優れた多孔質微粒子であり、触媒材料や吸着剤材料等の工学分野における研究が世界中で行われている。ナノメディシン分野では、がん等の疾患細胞へ治療薬や診断薬を運ぶDDS研究の対象になっているが、免疫細胞をターゲットとする研究はほとんど報告されていない。一方、がんの免疫治療として、患者自身の免疫細胞を用いる細胞療法があるが、治療効果は不安定であり、高度な設備を要する高額な個人療法となっている。そこで、ペプチド抗原を封入したMSNワクチンの免疫誘導機能を明らかにした本研究の結果は、今後、大量供給可能なワクチン製剤の開発に寄与するものと考えられる。

Report

(4 results)
  • 2020 Annual Research Report   Final Research Report ( PDF )
  • 2019 Research-status Report
  • 2018 Research-status Report
  • Research Products

    (1 results)

All 2018

All Presentation (1 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results)

  • [Presentation] MSN Vaccines for Immunotherapy toward Cancer2018

    • Author(s)
      Koichi Goto, Yoko Matsumoto
    • Organizer
      12th Anniversary International Symposium on Nanomedicine
    • Related Report
      2018 Research-status Report
    • Int'l Joint Research / Invited

URL: 

Published: 2018-04-23   Modified: 2022-01-27  

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