Pathway analysis showed the enrichment of IL-2/STAT5 signaling pathway–related genes (Figure 6B), T cell receptor signaling pathway–related genes (Figure 6C), and IFN-γ response-related genes (Figure 6D) in cluster 5, which indicates that T cells in cluster 5 are enriched tumor-specific T cells and respond more readily to IL-2 stimulation. This evidence concerns the gene IL2 and neoplasm.