In examining the DEGs identified across the various T‐cell subgroups, we found that CD4+ Th cells accounted for the largest proportion of DEGs when comparing the AIP group with the normal control group (comprising either the post‐PBMC group or other normal group samples, with criteria set for pct > 0.35 & |logFC| > 0.1). This evidence concerns the gene CD4 and autoimmune pancreatitis.