In this study, we examined the correlations between CD155 and various immune cells and stromal cells of TME in GAC at both mRNA and protein levels, respectively, to investigate whether the tumor tissues with high CD155 expression were accompanied by an immunosuppressive state or a high degree of stromal cell infiltration, and to assess the TME landscape of GAC corresponding to different levels of CD155 expression. This evidence concerns the gene PVR and neoplasm.