FOXL1 has not been reported as a TN or basal breast cancer marker, although other members of the forkhead family of transcription factors such as FOXA1 (UBCS: log2FC = -5.04, p = 4.05E-18; TCGA: log2FC = -4.89, p = 9.81E-136) and FOXC1 (UBCS: log2FC = 2.58, p = 3.43E-15; TCGA: log2FC = 3.16, p = 5.83E-103) are established regulators of luminal and basal-like breast cancers respectively. Here, FOXL1 is linked to breast cancer.