Figure 1. EC sensitization elicits a systemic IL-22 response and an antigen-specific IL-22 response in the lungs.
A-B. IL-22 secretion by OVA stimulated splenocytes (A) and IL-22 serum levels (B). C,D. Il22 mRNA expression in the lungs (C), and IL-22 secretion by OVA stimulated lung cells (D). E. Representative FACS analysis and quantitation of intracelluar expression of IL-22+ cells among CD3+CD4+ T cells and of IL-17A+ and TNFα+ cells among CD3+CD4+IL-22+ cells in the lung. Mice were EC sensitized with OVA or saline in A and B, followed by i.n. challenged with OVA in C-F. Bars represent mean±SEM (n=5–10 per group). *p<0.05.