PD-L1 and HLA-DR are upregulated in MoLCs after stimulation with allergens.

<p>MoLCs were exposed to graded doses of DNCB, nickel or SDS for 24 hours and stained by anti-PD-L1 and anti-HLA-DR, respectively. FACS analyses were gated on viable cells. A. Protein expression is shown as dark gray graphs in overlay histograms. Cells stimulated under the same conditions were stained with isotype-controls and are represented by light gray. B. Bars indicate fold increase of mean fluorescence intensities (MFI) compared to untreated control. Results shown are representative for four independent experiments with different donors.