IL-2-stimulated accumulation of T cell subsets. PBL from control (filled symbols) and atopic asthmatic (open symbols) subjects were cultured 6-d with IL-2 + anti-IL-12, and then cells were stimulated and analyzed for cytokine production. Each symbol indicates the proportion (%) and number (n) of: (A) total; (B) IL-13+; and (c) IFN-γ+ T cells, expressed as a percent of the respective day 0 values, for each subject. Bars = geometric mean for each parameter. p-values from two-tailed student t-tests for differences in geometric mean between control and asthmatic subjects are shown.