MIR31HG and triple-negative breast carcinoma: In contrast to a previous study, which reported that miR-31 and MIR31HG are down-regulated in triple-negative breast cancer (TNBC) cell lines of basal subtype [37], the present study shows that MIR31HG is highly expressed in the BLCA cell line of basal subtype and markedly correlates with the survival of patients with MIBC basal subtype.