Fig. 2.

Flow cytometric analysis of IL-6 expression and cell surface phenotype of cord blood cells obtained from neonates after spontaneous term labour and vaginal delivery. Intracellular IL-6 expression was exclusively detectable in CD14⁺ monocytes, while CD15⁺ granulocytes and CD56⁺ natural killer (NK) cells were negative for IL-6 expression. Negative staining controls were done using an IgG1 isotype control of irrelevant specificity at the same concentration of the IL-6 MoAb, and are shown on the right.