ERBB2 and triple-negative breast carcinoma: Amir et al. demonstrated that OSR1 is significantly down-regulated across Luminal A, Luminal B, HER2-positive, and TNBC (triple-negative breast cancer) subtypes and interacts with hsa-miR-21-5p, a microRNA biomarker for breast cancer diagnosis identified by Min Liu et al. [39,40].