Correlation analysis of the relationship between the tumor microenvironment-based gene signature [21] and WAC-AS1 expression levels (Supplementary Fig. 3) revealed the strongest relationship for KIRP (n = 14), BRCA (n = 12), LUSC (n = 12), and LGG (n = 12) (Fig. 4B). The gene discussed is WAC; the disease is neoplasm.