A positive correlation was observed between the expression of SNAI1 and WASF2 in the tumor group of the TCGA_LIHC dataset (Pearson’s correlation coefficient r = 0.26, P < 0.0001), but not in the non-tumor group (Pearson’s correlation coefficient r = 0.08, P = 0.55; Fig. S5). This evidence concerns the gene WASF2 and neoplasm.