CCR5, CCL5, PDGF-BB, and EPHA7 were all correlated with GC diagnosis (CCR5, p < 0.001, r = −0.449; CCL5, p = 0.014, r = −0.234; PDGF-BB, p < 0.001, r = −0.700; EphA7, p < 0.001, r = −0.617). This evidence concerns the gene CCL5 and gastric cancer.