IL17A and inflammatory bowel disease: Furthermore, the KEGG pathway analysis was performed to show that the DE mRNAs were enriched in protein digestion and absorption, IL‐17 signalling pathway, ECM‐receptor interaction, cytokine‐cytokine receptor interaction, cell adhesion molecules (CAMs), inflammatory bowel disease (IBD), leucocyte transendothelial migration, focal adhesion and so on (Figure 5B).