Fig. 3From: Expression profiling and functional analysis of Toll-like receptors in primary healthy human nasal epithelial cells shows no correlation and a refractory LPS responsePrimary nasal epithelial cells of non-allergic individuals were stimulated for 24 h with different TLR ligands. IL-6 and IL-8 production was measured after 24 h by ELISA. Results from one representative patient are shown as fold induction compared to unstimulated cellsBack to article page