<p>(A) BM-MΦ or (C) BM-DC were incubated with CFSE-labelled wt or Cst-II mutant GB11 for 60 min at 37°C (open histograms) or 4°C (filled histograms). Phagocytosis of <i>C. jejuni</i> by F4/80+ cells or CD11c<sup>+</sup> cells was quantified as fold increase in fluorescence intensity using background fluorescence of 4°C, NaN<sub>3</sub> cultured cells as a reference. Phagocytosis of sialylated wt GB11 and unsialylated GB11 for 0, 15, 30 and 60 min shows that sialylation increases <i>C. jejuni</i> phagocytosis by BM-MΦ (B) but not DM-DC (D). One representative experiment out of 3 is shown (B and D; means ± sd of triplicates). * p<0.05; t-test.</p
