Evaluating Anti-tumor Immune Responses of Protein Nanoparticle-Based Cancer Vaccines.
Methods in molecular biology (Clifton, N.J.)(2023)
摘要
Cancer vaccines displaying tumor-associated antigens (TAAs) train the immune system for enhanced tumor recognition and elimination. Nanoparticle-based cancer vaccines are ingested and processed by dendritic cells, which subsequently activate antigen-specific cytotoxic T cells, allowing them to identify and eliminate tumor cells displaying these TAAs. Here, we describe the procedures to conjugate TAA and adjuvant to a model protein nanoparticle platform (E2), followed by assessment of vaccine performance. Utilizing a syngeneic tumor model, the efficacy of in vivo immunization was determined by cytotoxic T lymphocyte assays and IFN-γ ELISpot ex vivo assays to measure tumor cell lysis and TAA-specific activation, respectively. In vivo tumor challenge directly allows evaluation of anti-tumor response and survival over time.
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