Table 1

Mean fluorescence intensities for Fas ligand and Fas staining in human SV40-transformed tracheal epithelial cell lines with CF (CFT-2) and normal (NT) genotype (fluorescence activating cell sorting). Measures are expressed for unstimulated cells (basal) and after stimulation with tumour necrosis factor-α (TNF-α ) and interferon-γ (IFN-γ) (n= 6)

		Basal	TNF	IFN	p value
Fas ligand
CFT-2	Median	74	66	50	NS
	Range	25–101	51–77	24–71
NT	Median	42	37	38	NS
	Range	21–70	23–67	21–79
p value		0.04
Fas
CFT-2	Median	38	20	33	NS
	Range	13–45	14–43	14–52
NT	Median	21	18	22	NS
	Range	16–36	14–24	16–48
p value		NS

NS = non-significant difference (p>0.05).