CD1C and infection: In addition to increased cell death, flow cytometry analyses of cells in the gates corresponding to low and intermediate staining revealed a decrease in the levels of CD11c and the antigen-presenting molecules CD1c and HLA-DR as well as in the levels of the costimulatory CD83 and CD86 molecules on the surface of DCs after infection with wt bacteria compared to ΔlukAB bacteria (Fig. 6C).