Table 2.

Statistical correlations between cytokines concentrations in the PBMC supernatants used as stimulus (IL-6, IL-8, IL-13, TNF-α and IFN-γ) and the consequent expression of eotaxin, IL-6, IL-8, CD54, CD106, and CD40 by fibroblasts

	Fibroblast expression
PBMC release	Eotaxin	IL-6	IL-8	CD54	CD40	CD106
IL-6	0·1	0·05*	0·004**	0·02*	0·3	0·2
IL-8	0·07	0·06	0·02*	0·004**	0·5	0·2
IL-13	0·1	0·004**	0·08	0·6	0·2	0·1
TNF-α	0·007**	0·6	0·9	0·08	0·09	0·4
IFN-γ	0·03*	0·03*	0·008**	0·005**	0·03*	0·02*

Values of cytokine concentrations from both Dp stimulated and non-stimulated PBMC supernatants are included in the calculations. A Spearman's rank correlation test was used

^*a P-value = 0·05 was considered as significant.

^**P-value = 0·01 as highly significant