The results showed that the terms calcium signaling pathway, Hedgehog signaling pathway, cytokine–cytokine receptor interaction, regulation of actin cytoskeleton, TGF-beta signaling pathway, CAMs, MAPK signaling pathway, pathways in cancer, JAK-STAT signaling pathway, Wnt signaling pathway, chemokine signaling pathway, Toll-like receptor signaling pathway, and ABC transporters were correlated with the progression of GC. This evidence concerns the gene ABCG2 and gastric cancer.