As Figure 1f showed, the KEGG pathway analysis revealed that the intestinal immune network for IgA production, cell adhesion molecules (CAMs), Th1 and Th2 cell differentiation, Toll‐like receptor signalling pathway, inflammatory bowel disease (IBD), chemokine signalling pathway, antigen processing and presentation, systemic lupus erythematosus, tight junction and DNA replication were enriched. This evidence concerns the gene CD79A and systemic lupus erythematosus.