FOXM1 is a member of the Fox family of TFs, which shares homology in the winged helix/forkhead DNA‐binding domain.[24, 25] It acts as a key regulator of cell cycle progression in tumor cells during the development of liver, colon, and breast cancer.[26, 27, 28] FOXM1 is expressed in all tissues during embryogenesis, but only low expression levels are required in adult mice. This evidence concerns the gene FOXM1 and breast cancer.