SLC39A6 and breast cancer: Liu et al. [21] analyzed data from ~1100 BC patients included in the TCGA database (241 basal, 611 luminal A, 431 luminal B, and 117 HER2-positive) and found an association of LIV1 mRNA expression with better OS in the whole cohort as well as in luminal A and HER2-positive patients.