Effect of adaphostin on normal B cells and T cells. (A) Representative dot plots for normal B (top row) and T cells (bottom row) stained with annexin (x-axis) and propidium iodine (y-axis) assessed by flow cytometry for increasing doses of adaphostin. Dots in the lower right quadrants represent early apoptotic cells, and dots in the upper right quadrants represent late apoptotic cells. (B) Mean dose response curve for B () and T cells (▪) from normal controls (n = 3) cultured with increasing doses of adaphostin. Y bars indicate the standard deviation at each dose level.