Figure 1. Relationship between CD155 expression and clinical glioma parameters. CD155 transcript levels increase with WHO grade in the Rembrandt dataset (A) and TCGA dataset (B). Protein expression pattern of CD155 in glioma showed CD155 was highly expressed in GBM at protein level (C–D). Glioma tissues of different grades were immunostained for CD155 using anti-CD155 antibody and 3,30-diaminobenzidine (DAB; brown). Haematoxylin was used for nuclear counterstaining (blue). The summarized table included number and percentage of CD155-positive samples out of number of total samples. Scale bars, 100 mm. * indicates p value < 0.05, ** indicates p value < 0.01, *** indicates p value < 0.001.