As shown in Figure 5(a), the expression levels of TIM-3 (95% CI 1.341–4.781; P = 0.0005), FOXP3 (95% CI 0.384–2.948; P = 0.0111), CMTM6 (95% CI 2.80–14.94; P = 0.0044), CTSB (95% CI 18.51–213.5; P = 0.0199), HERC2 (95% CI 0.563–2.183; P = 0.0010), MTOR (95% CI 1.131–4.35; P = 0.0009), CD47 (95% CI 4.255–12.97; P = 0.0001), and CD276 (95% CI 5.941–14.36; P < 0.0001) were significantly higher in GC tissues than in normal gastric tissues. Here, CMTM6 is linked to gastric cancer.