We also found that CYT scores positively correlated with the expression of common immune checkpoint molecules (PD‐L1, PD‐L2, PD1, CTLA4, CD80, CD86, TIGIT, CD47, IDO1, and LAG3) in GC samples from TCGA dataset (Figure 2D and supporting information Figure S4). This evidence concerns the gene PDCD1LG2 and gastric cancer.