Table 1.

Production of IL-8 (ng/μg of Total Protein) by Non-CF and CF Airway Epithelial Cells

Airway cell line	Basal*	TNF-α	n†	P‡
Beas2B	0.35 ± 0.09	13.20 ± 3.3	6	<0.003
CF15	0.50 ± 0.06	1.30 ± 0.3	6	<0.04
IB3-1	0.03 ± 0.015	1.90 ± 0.4	3	<0.01

*Values are expressed as mean ± SEM.

^†n is the number of experiments.

^‡P is the degree of significance. The production of IL-8 in response to 100 U/ml TNF-α is enhanced 38-fold in Beas2B cells, 2.6-fold in CF15 cells, and 63-fold in IB3-1 cells.