Fig. 2.
IFN-α does not induce CLL apoptosis.
CLL cells from 3 patients were cultured with or without 0 U/mL (♦), 10 U/mL (▪), and 100 U/mL (▴) IFN-α at a density of 106/mL in RPMI plus 0.5% BSA in tissue culture plates coated with polyHEMA. Cell death was measured by double staining with DiOC6 and PI. The percentage of DiOC6-positive/PI-negative (live) cells is shown.
