ERBB2 and triple-negative breast carcinoma: In triple-negative breast cancer (TNBC), tumor that does not express receptors for estrogens, progesterone, and does not overexpress Her2 (ER-, PR-, Her2-)[5], expression of miR10b, miR122, miR145, and miR205 is lower than in normal tissue, suggesting that they act as tumor-suppressors [6].