Given the specific phenotype observed in PI16/2 tumors compared to TI tumors (Fig. 5C–E) and that CD8+ T cells are targets of PD1 blocking antibodies, we sought to determine a functional role of CD8+ T cells in the anti-tumor response to 16/2 partial irradiations, alone and in combination with anti-PD1. Here, CD8A is linked to neoplasm.