Furthermore, the KEGG pathway analysis of ST3GAL6 in LUAD demonstrated that 19 pathways were significantly related to ST3GAL6 and co-expressed genes, including an intestinal immune network for IgA production, cell adhesion molecules, NOD-like receptor signaling pathway, antigen processing and presentation, and inflammatory bowel disease, as well as cell adhesion molecules (Supplementary Figure S1B). Here, CD79A is linked to inflammatory bowel disease.