The phenotype of the cultured primary imDCs was confirmed at day 6 using flow cytometry analysis, essentially as described before [27] (link), [29] (link). The cells were analyzed using the primary labeled antibodies Lineage1-FITC, CD11c-APC, HLR-DR-V500, CD80-PE, CD83-PECy7 and CD86-V50 (Becton Dickinson). DC-SIGN levels of imDCs, Raji wild type, and Raji DC-SIGN cells were determined using an anti-DC-SIGN antibody and a secondary PE-labeled antibody (both R&D systems, MN, USA). Flow cytometry analysis was performed on a LSR-II (Becton Dickinson). Data was analyzed using Kaluza 1.2.
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