CD274 and gastric cancer: We simultaneously analyzed MACC1, c‐Met, and PDL1 mRNA expression patterns in whole‐genome gene profiles of 20 GC tissue samples, with the results shown in Figure 1A. MACC1, c‐Met, and PDL1 mRNA expressions were significantly higher in GC tumor tissues than in normal gastric mucosa tissues, and their mRNA expression levels were significantly associated with tumor grades (grades II, III, and IV, P < .05).