EGFR and cancer: Within the PR group, the results indicated that these proteins were enriched in several GO terms such as regulation of cell population proliferation, angiogenesis, and cell-cell signaling as well as pathways related to oncology and immunology, like PI3K-Akt signaling pathway, pathways in cancer, MAPK signaling pathway, ErbB signaling pathway, and focal adhesion (Figure 3A).