Antibody mediated cross-neutralization of MA and STF flagellins measured by the IL8 secretion by Caco-2 cells.

<p>Caco-2 cells were incubated with a premix of 3 µl (grey bars) or 0 µl (black bars) of anti-flagellin hyperimmune serum with MA or STF flagellins. The flagellins (abscissa) indicated were pre-incubated with anti-FljB antiserum (A), anti-FR antiserum (B), and anti-F antiserum (C). (D) Panel showing the IgG titration profile of anti-FljB (▵) and anti-FR (▴).*, statistical significance differences at the p≤0.05 level.