CXCR4 and gastric cancer: For example, Yang et al29 built a prognostic model for gastric cancer consisting of immune‐related genes including TNFRSF18, PBK, MICB, ITGA6, TLR5, PNMA1, LBP, CXCR4, C6 and NRP1, which accurately distinguished between patients with poor and satisfactory OS.