Figure 5

Intracellular PLD does not initiate apoptosis in HeLa cells. HeLa cells were inoculated with A. haemolyticum strains and the bacteria were allowed to adhere for 2 h and invade for 5 h prior to measurement of caspase 3/7, 8 or 9 activity. Activity is shown as a fold-change of untreated cells, which was set at a nominal value of 1.0. Error bars indicate one standard deviation from the mean calculated from the averages of at least three independent experiments conducted in triplicate.