Figure 9 showed that the biological processes of cluster 2 were mainly enriched in transmembrane receptor protein tyrosine kinase signaling pathway, regulation of kinase activity, protein phosphorylation, actin filament-based process, regulation of cell adhesion, positive regulation of cell migration, etc. The pathways of cluster 2 were mainly enriched in Proteoglycans in cancer, ErbB signaling pathway, PI3K-Akt signaling pathway, Pathways in cancer, Platelet activation, and cAMP signaling pathway. This evidence concerns the gene EGFR and cancer.