Figure 4. Flow cytometric analysis of endocytic activity of DCs. Mature DCs (A), DCs treated with 50% CSC culture supernatant (B), and DCs treated with 50% CSC culture supernatant in presence of neutralizing TGF-β2 antibody (C). The empty histograms represent the uptake of FITC-dextran at 4 °C. The histogram is from one representative experiment out of three performed.