Figure 3.

Double-negative natural killer (DN NK) cells show a more immature phenotype compard with the other NK-cell subsets. (a) The percentages of surface molecule expression using the gated CD56⁺ CD3⁻ decidual NK (dNK) cells of the first trimester, cord blood NK (cNK) and peripheral blood NK (pNK) cells (n = 8) for each experiment. (b) Expression of various surface molecules on gated DN dNK cells versus the other three NK subsets. Results are representative of five experiments. Numbers showed the average fluorescence intensity of each surface molecule.