This analysis validated the identification of genes that could be specific to cancer biology, such as IL7R, JUN, NR3C1 in Ba/Sq subtype, NPAS2, FOXQ1, GRHL3 in Luminal samples, or CDKN2C, FOXJ1, MEIS2, FGFR3 in both subtypes (Fig. 3F, Table S3). This evidence concerns the gene JUN and cancer.