CCL26 and eosinophilic esophagitis: Finally, a single-nucleotide polymorphism on the eotaxin-3 gene (chromosome 7q11) has been associated with increased eotaxin-3 levels and an increased EoE risk, possibly through an enhancement of the stability of the eotaxin-3 mRNA (Blanchard et al., 2006; Romano et al., 2014; Moawad et al., 2015).