TSLP and eosinophilic esophagitis: Based upon preferential expression of TSLP within the differentiated compartment of the esophageal epithelium in EoE (Fig 1) and our findings that calcium differentiation enhances inducible TSLP expression, we hypothesized that TSLP might be induced by direct contact between food antigens and differentiated esophageal epithelial cells at the luminal surface of the esophagus.