We chose OT1 T cells for adoptive transfer to allow for careful monitoring and tracking of T-cell responses as shown in previous studies.13 36 Mrb-OVA was used as the vaccine as it was shown to induce robust antitumor CD8+ T-cell responses in our previous study.35 Tumor challenge was done 31–30 days after adoptive transfer of OT1 and vaccination with Mrb-OVA. Here, CD8A is linked to neoplasm.