Balb/c, C57BL/6, Rag1−/− and Il1r1−/− mice were purchased from Jackson Laboratory (Bar Harbor, ME). ST2−/− (Il1rl1−/−) (18 (link)), Il17rb−/− (19 (link)), Tslpr−/− (20 (link)), and Il13+/eGFP mice (19 (link)) were generated on the Balb/c background and have been bred in the animal facility at the Mayo Clinic (Rochester, MN). Il5+/venus mice (21 (link)) were a gift from Dr. Kiyoshi Takatsu (University of Toyama, Toyama, Japan). Six- to 12-week-old female mice were used in this study. All the experiments in this study were approved by the Mayo Clinic Institutional Animal Care and Use Committee.