CD209 and systemic lupus erythematosus: The CTLR DC-SIGN, however, was also downregulated in SLE moDCs – both before and after stimulation (unstimulated percentage expression: control (n = 30), 71.3 ± 3.5 and SLE (n = 52), 53.2 ± 3.7; P = 0.005; stimulated percentage expression: control (n = 21), 64.7 ± 6.0 and SLE (n = 39), 48.6 ± 4.5; P = 0.03; Figure 5).