Sulfonium-Stapled Peptides-Based Neoantigen Delivery System for Personalized Tumor Immunotherapy and Prevention

  • Yaping Zhang
  • , Leying Jiang
  • , Siyong Huang
  • , Chenshan Lian
  • , Huiting Liang
  • , Yun Xing
  • , Jianbo Liu
  • , Xiaojing Tian
  • , Zhihong Liu
  • , Rui Wang
  • , Yuhao An
  • , Fei Lu
  • , Youdong Pan
  • , Wei Han
  • , Zigang Li*
  • , Feng Yin*
  • *Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

14 Citations (Scopus)

Abstract

Neoantigen peptides hold great potential as vaccine candidates for tumor immunotherapy. However, due to the limitation of antigen cellular uptake and cross-presentation, the progress with neoantigen peptide-based vaccines has obviously lagged in clinical trials. Here, a stapling peptide-based nano-vaccine is developed, comprising a self-assembly nanoparticle driven by the nucleic acid adjuvant-antigen conjugate. This nano-vaccine stimulates a strong tumor-specific T cell response by activating antigen presentation and toll-like receptor signaling pathways. By markedly improving the efficiency of antigen/adjuvant co-delivery to the draining lymph nodes, the nano-vaccine leads to 100% tumor prevention for up to 11 months and without tumor recurrence, heralding the generation of long-term anti-tumor memory. Moreover, the injection of nano-vaccine with signal neoantigen eliminates the established MC-38 tumor (a cell line of murine carcinoma of the colon without exogenous OVA protein expression) in 40% of the mice by inducing potent cytotoxic T lymphocyte infiltration in the tumor microenvironment without substantial systemic toxicity. These findings represent that stapling peptide-based nano-vaccine may serve as a facile, general, and safe strategy to stimulate a strong anti-tumor immune response for the neoantigen peptide-based personalized tumor immunotherapy.

Original languageEnglish
Article number2307754
Number of pages14
JournalAdvanced Science
Volume11
Issue number24
DOIs
Publication statusPublished - 26 Jun 2024

User-Defined Keywords

  • nano-carriers
  • neoantigens
  • personalized immunotherapy
  • stapling peptide
  • sulfonium

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