The cluster-associated genes were positively correlated with the cancer-related hallmarks (e.g., epithelial-mesenchymal transition, G2/M checkpoint, apoptosis, angiogenesis, and p53 pathway) and immune-related hallmarks (e.g., IL6-JAK/STAT3 signaling, interferon response, coagulation, and inflammatory response). This evidence concerns the gene IL6 and cancer.