Interestingly, YAP/TAZ and SOX2 were found to be significantly upregulated in the CD44+/CD24− and ALDH+ population isolated from patient breast tumors (Supplementary Fig. S3b, c), adherent cells (Supplementary Fig. S4e, f) and mammospheres (Supplementary Fig. S4g, h). This evidence concerns the gene SOX2 and breast neoplasm.