Phenotype of expanded ovine CD16⁺/CD14⁻ cells. Ovine CD16⁺/CD14⁻ cells expanded in the presence of IL-2 and IL-15 were labelled with anti-CD2, -CD8 or -CD25 mAbs (solid lines and white histograms) or with isotype control mAbs (shaded histograms). Data shown are from 1 animal representative of 4. Numbers at the top of histograms indicate the percentages of cells labelled with the antibody indicated among the PBMC in the quadrants.