GRB7 and neoplasm: We found that basal keratins (KRT5/17), EGFR, and VIM were highly expressed in TNBC samples, whereas ERBB2 and GRB7 expression were commonly high in HER2+ and some luminal tumor samples; MYC was coupregulated in some tumors, and EMT markers were relatively highly expressed in TNBC samples compared with their expression in other subtypes (Fig. 3e).