Our results found that the expression levels of C1R, CCL2, and TNFRSF1A in GBM cells and patients were very high (Figure 6), and 35 gene biomarkers of immune cells were significantly correlated with C1R, CCL2, and TNFRSF1A (Supplementary Table S5). Here, TNFRSF1A is linked to glioblastoma.