NDRG1 and breast carcinoma: Proteins negatively correlated with phospho-NDRG1 mirrored the results of the mRNA associations (Additional file 2: Table S3), as did an analysis of mRNA levels in NDRG1 altered and unaltered cases (Additional file 2: Table S4), corroborating a link between NDRG1 and aggressive forms of breast cancer.