Fig. 2
Identification of regulatory B cell subsets. a and b Gating strategy for CD24hiCD27+ (a) and CD24hiCD38hi (b) Bregs; c and d IL-10-producing CD19+ B cells (CD19+ B cells were analyzed for the expression of IL-10 after a 5-h incubation period without stimulation (c) and with stimulation (d) with phorbol 12-myristate 13-acetate, calcium ionophore and lipopolysaccharide)