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Background  Neutrophils are non-dividing cells with poor survival after isolation. Consequently, exogenous gene expression in neutrophils is challenging. We report here the transfection of genes and expression of active proteins in human primary peripheral neutrophils using nucleofection.    Results  Exogenous gene expression in human neutrophils was achieved 2 h post-transfection. We show that neutrophils transfected by nucleofection are functional cells, able to respond to soluble and particulate stimuli. They conserved the ability to undergo physiological processes including phagocytosis. Using this technique, we were able to show that the phox homology (PX) domain of p47  phox   localizes to the plasma membrane in human neutrophils. We also show that RhoB, but not the PX domain of p47  phox  , is translocated to the membrane of mature phagosomes.    Conclusion  We demonstrated that cDNA transfer and expression of exogenous protein in human neutrophils is compatible with cell viability and is no longer a limitation for the study of protein function in human neutrophils.

bmc immunology

Gene transfer and expression in human neutrophils. The phox homology domain of p47 phox translocates to the plasma membrane but not to the membrane of mature phagosomes