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Development of cancer vaccine using sugar chain and toll-like receptor agonist immobilized gold nanoparticles

Research Project

Project/Area Number 17K17968
Research Category

Grant-in-Aid for Young Scientists (B)

Allocation TypeMulti-year Fund
Research Field Tumor therapeutics
Bio-related chemistry
Research InstitutionKagoshima University

Principal Investigator

Shinchi Hiroyuki  鹿児島大学, 理工学域工学系, 助教 (70770155)

Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥4,160,000 (Direct Cost: ¥3,200,000、Indirect Cost: ¥960,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥1,040,000 (Direct Cost: ¥800,000、Indirect Cost: ¥240,000)
Fiscal Year 2017: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Keywordsアジュバント / 金ナノ粒子 / 糖鎖 / 免疫療法 / ワクチン / TLR / がん免疫療法 / TLRアゴニスト / ワクチン療法
Outline of Final Research Achievements

In this study, we have addressed to develop a cancer vaccine using gold nanoparticles co-immobilized with a synthetic small molecule Toll-like receptor 7 (TLR7) agonist and a tumor-associated sugar chain antigen. The sugar chain antigen used in this study did not lead to the development of a cancer vaccine due to their poor capability to deliver to immune cells. On the other hand, we found that several sugar chain structure such as alpha-mannose are effective for selective delivery, and gold nanoparticles co-immobilized with alpha-mannose and TLR7 agonist have significantly higher adjuvant activity compared to small-molecule TLR7 ligands. Furthermore, some of gold nanoparicle conjugates showed tumor growth inhibition effect, suggesting that they may be useful adjuvants for immunotherapy.

Academic Significance and Societal Importance of the Research Achievements

TLRアゴニストは、自然免疫を活性化し、獲得免疫の誘導に寄与することから、ワクチンや免疫療法のアジュバントとしての利用が期待されている。その中でも、TLR7のアゴニストは、種々の合成低分子化合物が開発され、抗ウイルス治療薬として既に臨床利用されている。しかし、全身投与すると致死的な副作用を誘発する恐れがあり、その利用法が制限されていた。本研究では、糖鎖を固定化した金ナノ粒子を用いて合成低分子TLR7アゴニストを免疫細胞選択的に輸送することで、安全且つ効果的なアジュバントとして利用できることを見出した。今後、がんや感染症に対するワクチンや免疫療法のアジュバントとして幅広い応用が期待できる。

Report

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

    (11 results)

All 2019 2018 2017 Other

All Int'l Joint Research (1 results) Journal Article (1 results) (of which Int'l Joint Research: 1 results,  Peer Reviewed: 1 results) Presentation (5 results) (of which Int'l Joint Research: 1 results,  Invited: 1 results) Remarks (2 results) Patent(Industrial Property Rights) (2 results)

  • [Int'l Joint Research] カリフォルニア大学サンディエゴ校(米国)

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Gold Nanoparticles Coimmobilized with Small Molecule Toll-Like Receptor 7 Ligand and α-Mannose as Adjuvants2019

    • Author(s)
      Shinchi Hiroyuki、Yamaguchi Toru、Moroishi Toshiro、Yuki Masaharu、Wakao Masahiro、Cottam Howard B.、Hayashi Tomoko、Carson Dennis A.、Suda Yasuo
    • Journal Title

      Bioconjugate Chemistry

      Volume: 30 Issue: 11 Pages: 2811-2821

    • DOI

      10.1021/acs.bioconjchem.9b00560

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed / Int'l Joint Research
  • [Presentation] Toll様受容体7リガンド・糖鎖共固定化蛍光性ナノ粒子の開発2019

    • Author(s)
      幸 勝治、新地 浩之、若尾 雅広、隅田 泰生
    • Organizer
      2019年度 日本生化学会九州支部例会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 合成低分子TLR7リガンドを用いた新規アジュバントの開発2019

    • Author(s)
      新地 浩之
    • Organizer
      第32回 日本動物細胞工学会2019年度大会 (JAACT2019)
    • Related Report
      2019 Annual Research Report
    • Invited
  • [Presentation] Development of toll-like receptor 7 ligand and α-mannose immobilized gold nanoparticles toward adjuvant immunotherapy2019

    • Author(s)
      Hiroyuki Shinchi, Toru Yamaguchi, Toshiro Moroishi, Tomoko Hayashi, Howard B. Cottam, Dennis A. Carson, Masahiro Wakao, Yasuo Suda
    • Organizer
      ACS Fall 2019 National Meeting & Expo -Chemistry & Water-
    • Related Report
      2019 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 新規アジュバントとしてのTLR7リガンド・糖鎖固定化金ナノ粒子の開発2018

    • Author(s)
      山口徹、新地浩之、諸石寿郎、若尾雅広、林公子、Howard B. Cottam、Dennis A. Carson、隅田泰生
    • Organizer
      第24回日本エンドトキシン・自然免疫研究会
    • Related Report
      2018 Research-status Report
  • [Presentation] TLR7リガンド固定化金ナノ粒子の調製と免疫増強活性評価2017

    • Author(s)
      山口徹、新地浩之、若尾雅広、林公子、Howard B. Cottam、Dennis A. Carson、隅田泰生
    • Organizer
      2017年度生命科学系合同年次大会
    • Related Report
      2017 Research-status Report
  • [Remarks] 鹿児島大学大学院理工学研究科 化学生命・化学工学専攻 隅田研究室

    • URL

      http://www.cb.kagoshima-u.ac.jp/lab/suda-lab/page/news_2019.html

    • Related Report
      2019 Annual Research Report
  • [Remarks] 隅田研究室

    • URL

      http://www.cb.kagoshima-u.ac.jp/lab/suda-lab/index.html

    • Related Report
      2018 Research-status Report
  • [Patent(Industrial Property Rights)] TLRリガンド固定化ナノ粒子2018

    • Inventor(s)
      新地浩之
    • Industrial Property Rights Holder
      新地浩之
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2018-202064
    • Filing Date
      2018
    • Related Report
      2018 Research-status Report
  • [Patent(Industrial Property Rights)] 免疫増強作用を有する金ナノ粒子2017

    • Inventor(s)
      隅田泰生、新地浩之、若尾雅広
    • Industrial Property Rights Holder
      隅田泰生、新地浩之、若尾雅広
    • Industrial Property Rights Type
      特許
    • Industrial Property Number
      2017-206818
    • Filing Date
      2017
    • Related Report
      2017 Research-status Report

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Published: 2017-04-28   Modified: 2025-03-27  

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