Time course of interleukin 2 (IL-2) effect on secretagogue stimulated short circuit current (Isc). Cells were treated with IL-2 5 U/ml. Anion secretion was stimulated with forskolin 10−5 M and 3-isobutyl-1-methyl xanthine (IBMX) 3×10−4 M. **p<0.01 compared with paired control monolayers. n=7, 14, and 23 pairs at 0.5, 2, and 24 hours, respectively.