Jeffrey F. Scieszka

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During the course of a previous investigation, we noticed that the uptake of liposomes by human polymorphonuclear neutrophils (PMNs) was significantly lower in the presence of heat-inactivated serum compared to that in intact whole serum (Scieszka et al., Pharm. Res. 5:352, 1988). This observation suggested the participation of heat-labile complement(More)
Targeted drug delivery to peripheral blood neutrophils (PMNs) should be of therapeutic potential in various disease states. In addition, substances taken up by PMNs in the circulation may be delivered to an extravascular site via the naturally occurring cell infiltration. The present study employs an in vitro chemotaxis model to test whether particulate(More)
Two strains of Madin Darby canine kidney (MDCK) cells were grown on a polycarbonate membrane with 3-µm pores without any extracellular matrix treatment. The membrane, 2.45 cm in diameter, which is part of a commercially obtained presterilized culture insert, provides two chambers when placed in a regular six-well culture plate. This device was found to be(More)
In assessing the feasibility of utilizing the phagocytic activity of polymorphonuclear leukocytes (PMNs) for a more efficient drug delivery to the cell, the uptake of the fluid-phase marker lucifer yellow CH (LY) at 37°C by human PMNs from LY-containing liposomes was compared with that from solutions. In the presence of 10% autologous serum, the LY uptake(More)
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