The correlation of low- or high-risk GC patients with ICI marker genes was also assessed, and the results showed that CD274 (PD-L1), CD28, TGFBR1, and TNFSF4 (OX40L) expressions were all up-regulated in high-risk GC patients compared with the low-risk ones. This evidence concerns the gene TNFSF4 and gastric cancer.