Fig. 3
From: Different serotypes of Escherichia coli flagellin exert identical adjuvant effects
TLR5 activity of recombinant FliCH1, FliCH7 and FliCH19 flagellin proteins. Caco-2 cells were stimulated with 5 μg/mL purified recombinant FliCH1, FliCH7, and FliCH19 flagellins for 6 h. The level of IL-8 and TNF-α secretion in the supernatant was measured by ELISA. Each sample was tested in duplicate. Bars represent the mean ± standard deviation from the three independent experiments