Figure 2

Expression of CD55^SC-1 and CD55^WT after induction of apoptosis by SC-1. Cells were incubated for the indicated times with 40 μg/ml of SC-1, and after trypsinization, cells were analyzed for expression of CD55^SC-1 (a–d) and CD55^WT (e–h) by flow cytometry. Additionally, cells were stained with mouse or human isotype-matched control antibodies. Gray area indicates isotype-matched controls; black line indicates cells stained by SC-1 and CD55^WT.