LY6K and breast cancer: Ly6K mRNA expression was significantly higher in triple negative breast cancer (TNBC) (n=163) than non-TNBC breast cancer (n=584) in Bittner (Unpublished, GSE2109), Korde [54], TCGA (Unpublished, NCI), Julka [110], Zhao [135], Richardson2 [55] and Miyake [136] studies.