KITLG and Epstein-Barr virus infection: After the enrichment analysis, we found these genes to be enriched in EGFR, interleukin-2, MAPK1/MAPK3, and PDGF signaling, in the signaling cascades of insulin receptor and RAF/MAP kinase, in Epstein-Barr virus infections, and in mitochondrial translation initiation, VEGFA-VEGFR2, and SCF (Skp2)-mediated degradation pathways (Figure 4B).