hsa-miR-4756-3p was significantly downregulated in TNBC patients as compared with that in ER+/PR+/HER2+ TCGA breast cancer patients (Fig. 1B), and this low expression of hsa-miR-4756-3p wascorrelated with breast cancer overall survival rate in the TCGA database (Fig. 1C). This evidence concerns the gene ERBB2 and breast carcinoma.