However, although CRNDE expression is significantly higher in group “a” versus PTEN(+) TNBC, the highest expression of this lncRNA was found in Luminal B and HER2+ BC, and, importantly, there was no correlation between CRNDE and miR-136 expression in TNBC (Additional file 1: Figure S8 and S9). Here, ERBB2 is linked to breast cancer.