To determine the interaction relationship between the proteins expressed by these upregulated DEGs, a PPI network was constructed as demonstrated in Figure 3(b), such as the mTOR signaling pathway, PI3K-Akt signaling pathway, adherens junction, focal adhesion, gap junction, endocytosis, ECM-receptor, proteoglycans in cancer, inflammatory mediator regulation of TRP channels, calcium signaling pathway, Rap1 signaling, complement and coagulation cascades, cytokine-cytokine receptor interaction, apoptosis, and Toll-like receptor signaling pathway. The gene discussed is MTOR; the disease is cancer.