IL7R and Autoimmunity: Treg function is necessary to protect against autoimmunity and intestinal inflammation and is dependent on suppressive cytokines, transforming growth factor‐β (TGF‐β), and interleukin (IL)‐10.1, 2 IL‐7 receptor (CD127) is a biomarker of Tregs in human peripheral blood as the expression of FoxP3 and CD127 is inversely correlated within CD4+CD25+ T cells.3, 4