Fig. 3.

Class II MHC expression by the stimulator peripheral blood cells treated with cytokines. The expression of HLA-DR was increased significantly by IL-4 + IFN-γ pretreatment: 14.3 ± 0.7% versus 10.3 ± 1.6% in cytokine and no cytokine pretreatment, respectively (P < 0.05).