Figure 5.
Mechanism of reovirus-induced cytotoxicity. Mel-888, Mel-624, Mewo and Skmel-28 cells were either left untreated (control), treated with 50 mm ZVAD or 10 PFU/cell reovirus alone or pretreated with 50 µm ZVAD for 1 h before the addition of 10 PFU/cell reovirus. Cells were harvested 48 h after reovirus infection and stained with propidium iodide (PI) before fluorescence-activated cell sorting (FACS) acquisition. Cell death was determined by the proportion of cells staining positive for PI. Data are representative of 2–4 independent experiments.