PLN and eosinophilic esophagitis: Interestingly, ILC2s and TH2 cells expressed phospholamban (PLN), which is induced by TGFβ1 in human esophageal smooth muscle cells and EoE myofibroblasts47, but ILC2s in the esophagus expressed amphiregulin (AREG) at higher levels, suggesting that they may function in tissue repair during EoE48.