Further functional enrichment analysis revealed that NFIL3 coexpression genes were strongly correlated with the inflammatory response, cytokine-mediated signaling pathway, cellular response to lipopolysaccharide, and response to glucocorticoid in biological processes and were significantly enriched in the IL-17 signaling pathway, TNF signaling pathway, and rheumatoid arthritis pathways referred to as KEGG pathway. Here, IL17A is linked to rheumatoid arthritis.