KLRG1 and eosinophilic esophagitis: Indeed, activated KLRG1+ ILC2s were significantly closer to the basal-cell layer at days 7 and 28 post rmIL-33 challenge than on day 0 (Fig. 3K and Supplementary Fig. 4E), supporting the involvement of ILC2s in EoE-related epithelial changes.