Dose-dependent transfer of CD59 from RBC eluate (A) and HDL (B). Increasing concentrations, (denoted as 1X, 2X) of RBC eluate or HDL were incubated with PNH cells. RBC were washed and stained with CD59-FITC. Scattergrams of RBCs treated with RBC eluate (A) HDL (B) are seen above.