Fig. 7. Inactivation of PI 3-kinase induces apoptotic cell death. FDCP-Mix and FL5.12 cells were cultured in the absence of IL-3 or treated with LY294002 for 24 h, and then analyzed by flow cytometry with fluorescein isothiocyanate (FITC)-labeled annexin V. Numbers above the selected regions indicate the percentage of apoptotic cells.