Basal-like breast cancers, which comprise 10–20% of all breast cancers, are also typically high grade, highly proliferative, genomically unstable, and have frequent somatic mutation of TP53 as well as loss of PTEN expression, and express basal cytokeratins such as CK5 and CK14 [8, 10–12]. This evidence concerns the gene KRT14 and breast carcinoma.