Consistent with the direct measurements of stemness-related proteins (Fig. S71), no differences in expression were observed across a wide spectrum of mRNAs encoding known melanoma stem cell genes (e.g. CD34, CD44, ALDH1, JARID1, NANOG, SOX2, SOX10, OCT4, KLF4, CCNB1 et al.)(Table S3). This evidence concerns the gene KLF4 and melanoma.