Figure 1.Clarification of relevant functions in COPD using GEO data. (A, B) Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway and Gene Ontology (GO) enrichment analysis revealed that immune pathways (immune system processes; immune response) and vesicle pathways (extracellular exosomes; endosomal system) are associated with COPD. (C, D) Gene Set Enrichment Analysis (GSEA) demonstrated a significant correlation between COPD and antigen presentation as well as immune response pathways.
