In EoE patients, TSLP expression is generally localized to the suprabasal layer of the esophageal epithelium and can be overexpressed or mutated in EoE patients (Chandramouleeswaran et al., 2016; Noti et al., 2013; Sherrill et al., 2010; Rothenberg et al., 2010; Kottyan et al., 2014). Here, TSLP is linked to eosinophilic esophagitis.