In the epithelial SP, the top canonical pathways identified were TREM1 signaling, glucocorticoid receptor signaling, dendritic cell maturation, the role of cytokines in mediating communication between immune cells and natural killer cell signaling; the top networks implicated were cancer, tumor morphology, connective tissue disorders and hematological system development and function, among others. The gene discussed is TREM1; the disease is cancer.