These two cytokines can be produced in EoE patients by TSLP-elicited basophils, Th2 cells, Tc2 cells, iNKT, eosinophils, mast cells, activated fibroblasts and epithelial cells (Straumann et al., 2001; Lucendo et al., 2008; Zhu et al., 2010). Here, TSLP is linked to eosinophilic esophagitis.