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Cell Microbiol. 2006 Apr;8(4):668-76.

Neutrophil extracellular traps capture and kill Candida albicans yeast and hyphal forms.

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Department of Cellular Microbiology, Max Planck Institute for Infection Biology, Schumannstrasse 21/22, 10117 Berlin, Germany.


Neutrophils phagocytose and kill microbes upon phagolysosomal fusion. Recently we found that activated neutrophils form extracellular fibres that consist of granule proteins and chromatin. These neutrophil extracellular traps (NETs) degrade virulence factors and kill Gram positive and negative bacteria. Here we show for the first time that Candida albicans, a eukaryotic pathogen, induces NET-formation and is susceptible to NET-mediated killing. C. albicans is the predominant aetiologic agent of fungal infections in humans, particularly in immunocompromised hosts. One major virulence trait of C. albicans is its ability to reversibly switch from singular budding cells to filamentous hyphae. We demonstrate that NETs kill both yeast-form and hyphal cells, and that granule components mediate fungal killing. Taken together our data indicate that neutrophils trap and kill ascomycetous yeasts by forming NETs.

[Indexed for MEDLINE]

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