Furthermore, a positive correlation was observed between TET2 expression and ADORA2A, CD160, CD200, CD200R1, CD44, CD80, NRP1 TNFSF4, and TNFSF15 in most female cancers in TCGA database, such as BRCA, OV, UCEC, and CESC (Figure 8C). This evidence concerns the gene CD200 and cancer.