NK cells may directly destroy malignant cells, but indirectly they can also facilitate ensuing adaptive T‐cell immunity against cancer as a result of cytokine production and by supplying antigens from killed cells for cross‐priming by dendritic cells to CD8 T cells (Pitt et al, 2017; Barry et al, 2018; Böttcher et al, 2018; Galluzzi et al, 2020, 2023; Minute et al, 2020). This evidence concerns the gene CD8A and cancer.