Figure 6. Association between CD155 and immune checkpoint markers in glioma. Correlation between CD155 and immune checkpoint markers (PD-L1, PD-L2, NR2F6, and B7-H2) in gliomas (A) and GBM (B) in Rembrandt dataset were subjected to the analysis. Correlation between CD155 and immune checkpoint markers (PD-L1, PD-L2, NR2F6, and B7-H2) in gliomas (C) and GBM (D) in TCGA were also included.