SOX2-OT and breast cancer: We analyzed the genome-wide RNA transcript profile from TCGA (breast invasive carcinoma gene expression) by RNAseq data set (TCGA_BRCA_exp_HiSeqV2-2013-12-18) including 1106 samples from breast cancer patients, and found distinct differences in the expression patterns of SOX2 and SOX2OT in breast cancer samples (Heat map, Figure 1C).