Fig. 3.
Time-course of PI3K activation in human eosinophils treated with IL-5 and PAF. Eosinophils (1.5 × 106) were treated with (A) IL-5 (10−9 mol/L) or (B) PAF (10−6 mol/L) at 37°C for the indicated time intervals. After cell lysis and immunoprecipitation, PI3K activity was detected as previously described.