In all three cohorts, NEAT1_2 was most highly expressed in breast cancers classified as HER2-enriched and luminal B, but with different intrinsic distributions (HER2-enriched > luminal B in Oslo2 and METABRIC; luminal B > HER2-enriched in TCGA) (Fig. 3a–c). This evidence concerns the gene ERBB2 and breast carcinoma.