Fig. 7.
Inhibition of [Ca2+]i changes in response to C3a by an anti-C3a MoAb. HMC-1 cells were stimulated simultaneously with C3a (0.1 μg/mL, 10 nmol/L) and anti-C3a MoAb H13 at different concentrations. Data represent the mean of 3 to 11 experiments (n = 3 to 11). No [Ca2+]i elevation was observed when cells were stimulated with MoAbs alone.