MYC and breast cancer: Accordingly, our genomic data analysis from the Molecular Taxonomy of Breast Cancer International Consortium METABRIC [19, 20] showed that c-MYC mRNA has the highest expression level in TNBC compared to the other breast cancer subtypes (Fig. 4A), while we could not find expression of miR-3189-3p in any cancer tissue annotated in the TGCA data base.