Figure 2.

Depiction of IL-8 secretion (A) and IL-8 mRNA induction (B) in confluent Caco-2 and fetal human enterocytes (H4 cells) in response to IL-1β (1 ng/ml) or media alone as a control. Secreted IL-8 is expressed as ng/mg of total cellular protein. IL-8 mRNA was quatitated by densitometry and normalized to the relative level of GAPDH mRNA. The results are given as means ± SEM. The number of independent experiments for each data point ranged from four to five and as absence of error bar indicates the SEM is smaller than the symbol.