CD8A and neoplasm: As shown in Figure S17A,B, Supporting Information, compared with the Saline (+) group, the population of activated IFN‐γ+CD8+ T cells and Ki67+CD8+ T cells in the distant tumor tissue after RT in combination with Ft‐E64/Hf@Lipo treatment increased by 1.9‐fold and 2.1‐fold, respectively.