As shown in Figure 3A, the activity of CD93 was significantly upregulated in tumor tissues of GBM, HNSC, KIRC, and THCA, but downregulated in tumor tissues of CESC, KIRP, LUAD, KICH, LUSC, BRCA, PRAD, BLCA, PEAD, COAD, and UCEC. Here, CD93 is linked to glioblastoma.