FLT4 and breast carcinoma: We observe significant overexpression of target receptor VEGFR3 in the luminal A subtype in TCGA (Fig. 6c, p-value of 2 × 10−3), while we observe significant overexpression of VEGFR3 in basal breast cancer in METABRIC (Fig. 6d, p-value of 9 × 10−3).