TREM1 and chronic obstructive pulmonary disease: Inflammation was inferred due to the enriched pathways related to macrophages: “Release of pro-inflammatory factors and proteases by alveolar macrophages in asthma”, “Release of pro-inflammatory mediators and elastolytic enzymes by alveolar macrophages in COPD”, “Inflammatory mechanisms of pancreatic cancerogenesis”, “Immune response_IL-6-induced acute-phase response in hepatocytes”, and “Immune response_TREM1 signaling pathway”; and IL-1 was inferred due to enriched pathways: “IL-1 signaling pathway” and “The innate immune response to contact allergens”.