Spearman’s rank order correlation coefficients of relative gene expression values (fold change) for AXIN2, DKK1, and SOX2 versus IC50 value of the WNT inhibitors LGK974 and IWP-2 in MCF-7 parental and endocrine therapy-resistant breast cancer cell lines (n = 14). This evidence concerns the gene AXIN2 and breast carcinoma.