In the exploration of the correlation between CBX8 expression and tumor pathological stages by the “Pathological Stage Plot” module of GEPIA2, some kinds of tumors were observed to be significantly correlated, including CESC, KICH, OV, and THCA (Figure 1D, all P-values < 0.05), but others were not (Supplementary Figure 5). This evidence concerns the gene CBX8 and neoplasm.