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J Infect Dis. 1998 Dec;178(6):1734-42.

Suppressive effects of interleukin-10 on human mononuclear phagocyte function against Candida albicans and Staphylococcus aureus.

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3rd Department of Pediatrics, University of Thessaloniki, Hippokration Hospital, Thessaloniki, Greece.


The effects of interleukin (IL)-10, a potent antiinflammatory cytokine, on human monocyte functions against two medically important pathogens, Candida albicans and Staphylococcus aureus, were studied. Incubation with 20-100 ng/mL IL-10 for 2-3 days decreased the fungicidal activity of monocytes against serum-opsonized C. albicans blastoconidia (P</=.04), reduced their capacity to damage unopsonized hyphae (P</=.006), and suppressed superoxide anion production in response to phorbol myristate acetate (P=.019) and N-FMLP (P=.04) but not to serum-opsonized blastoconidia. Paradoxically, IL-10 enhanced phagocytic activity of monocytes against serum-opsonized blastoconidia (P<.01). In addition, IL-10-treated monocytes demonstrated decreased bactericidal activity (P=.046) but no change in bacterial phagocytosis. These findings demonstrate an overall suppressive role of IL-10 on human monocyte function against C. albicans and S. aureus and may have important implications in the use of this cytokine.

[Indexed for MEDLINE]

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