Figure 3.

Effect of IL-15 or IL-2 on the expression of CD94 or NKG2A molecules in MLC-activated T cells. The expression of CD94 or NKG2A by CD3⁺ cells in fresh PBLs that have been used as responder population in MLCs is shown at day 0. These lymphocytes were cultured with irradiated allogeneic cells. IL-15, IL-2, or culture medium (control) were added at day 2 and cultures were harvested at day 8. Cells cultured under the indicated conditions were stained for CD94 or NKG2A in combination with CD3, CD4, or CD8. Cells have been analyzed by flow cytometry (x axis, green fluorescence; y axis, red fluorescence).