1887

Abstract

Suspensions of yeast cells, germ tubes and hyphae with biomass standardized by ATP measurement were compared for their relative susceptibilities to phagocytosis and intracellular killing by human polymorphonuclear leucocytes. All three forms were ingested to a similar extent, but significantly fewer yeast cells were killed intracellularly after ingestion than were filamentous forms of the fungus. Ketoconazole pretreatment significantly enhanced the susceptibility of hyphae, but not of germ tubes, to phagocytosis and intracellular killing. The opsonic requirements of the yeasts and filamentous forms for efficient phagocytosis and killing differed.

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1984-03-01
2021-10-26
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