Figure 5

Cell ferritin concentrations after exposures to mucus and iron. With inclusion of either NHBE-MUC or PORC-MUC, cell ferritin concentrations were significantly increased in BEAS-2B cells (A) and THP-1 cells (B) relative to metal alone. Separate one way ANOVAs were employed for NHBE-MUC and PORC-MUC. *Increased relative to FAC (p < 0.05).