FOXP3 and autoimmune gastritis: To determine if iTregs maintained Foxp3 expression in the highly inflammatory environment associated with ongoing autoimmune gastritis, iTregs were induced from TxA23xFoxp3-IRES-eGFP reporter mice and enTregs were isolated from the gastric lymph node TxA23xFoxp3-IRES-eGFP reporter mice, both on a Thy1.2 congenic background.