(A) The effect of increasing concentrations of (□) IL-1 and (⧫) TNF on the uptake of aged human eosinophils by SAEC. Each point represents the mean ± SEM of at least 6 experiments. (B) A time course of the effect of stimulation of SAEC with IL-1 and TNF (10⁻¹⁰ mol/L final concentration in each case) on the engulfment of apoptotic eosinophils. In each case, each point represents the mean ± SEM of at least 4 experiments (*P < .05, **P < .001, ***P < .0005).