Fig. 8

Western blot. J774A.1 cells were incubated with 1 μg PA83 and different concentrations of PA21 at 37 °C for 3 h in a 24-well plate. The cells incubated with only PA83 were used as the positive control, whereas the ones incubated with PBS were used as the negative control. Three concentrations of PA21 were used: 1, 10 and 30 μg