Costimulatory molecule expression by Lin⁻HLA-DR⁺ subsets, monocytes, and MoDCs.

CD56-depleted Lin⁻ PBMC preparations were stained with HLA-DR, one of the subset-defining mAbs, and one of PE-conjugated CD86, CD40, or negative control mAbs. Histograms representing CD86 and CD40 expression (solid lines) by (A) CD56-depleted HLA-DR⁺Lin⁻ subsets is compared to that of (B) monocytes and (C) MoDCs. Negative control antibody staining is indicated by a dashed line.