Figure 1From: Impact of polysialylated CD56 on natural killer cell cytotoxicityNK cells express PSA-NCAM. (A) FACS analysis of co-expression of PSA and CD56 in peripheral blood mononuclear cells shows a strong correlation of staining intensities. Data shown are representative of several independent experiments. (B) Expression of PSA (red) and CD56 (green) by NK cells examined via confocal microscopy. Rectangle indicates an unlabeled PBMC cell.Back to article page