Interestingly, the Th2 immune response that is enhanced in AIP involves induction of IL‐4, IL‐5, and IL‐13, which leads to the expression of eotaxin‐3, a chemoattractant cytokine for eosinophils to be directed to inflammatory sites, via the STAT6 pathway.16 The gene discussed is CCL26; the disease is autoimmune pancreatitis.