Figure 10From: Activity of the Bacillus anthracis20 kDa protective antigen component Induction of apoptosis in PBMC with rPA 20 . Cells were incubated with the rPA20 for 24 hours. Cells were then stained with HOECHST 33258 dye for 15 minutes. Cells with bright, fragmented, condensed nuclei were identified as apoptotic cells. This experiment was conducted at least 4 times (representative field shown here).Back to article page