In terms of the activated NK cells, they were generally negatively related to the NRF2 pathway-related gene expressions in multiple cancers, except for KEAP1 gene and THYM cancer, while the resting memory CD4+ T cells were generally positively related to the NRF2 pathway-related gene expressions in multiple cancers, except for ATF4, KEAP1, and MAPK3. This evidence concerns the gene KEAP1 and cancer.