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- W4243955746 abstract "A range of recombinant cytokines have now been shown to modify aspects of the phenotype and function of human and murine neutrophils. However, few reports describe modification of the bactericidal activity of neutrophils. We therefore examined the recombinant murine cytokines tumor necrosis factor-α (TNF-α, 10–1000 ng ml−1) and granulocyte macrophage-colony stimulating factor (GM-CSF, 10–1000 U ml−1) for their ability to increase the bacterial killing capacity of murine neutrophils. Neutrophils from either bone marrow (fresh or cultured), or peritoneal exudates, or abscesses, were pre-incubated with either cytokine for 30–60 min and the killing of Proteus mirabilis, Escherichia coli, or Bacteriodes fragilis was examined in the presence or absence of serum over a 90 min period. Only for one combination was a small but significantly enhanced level of bacterial killing observed, the phagocytic killing of P. mirabilis by peritoneal exudate neutrophils in the presence of GM-CSF and serum. With this exception there was no enhancement of bacterial killing for the range of combinations of neutrophils and bacterial species tested. In contrast, at the concentrations tested for effect on bactericidal activity, TNF-α and GM-CSF were able to significantly upregulate CR3(but not FcγRII) expression on mouse neutrophils. There results indicate that upregulation of CR3 as an index of neutrophil activation does not necessarily correlate with increased bactericidal activity." @default.
- W4243955746 created "2022-05-12" @default.
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- W4243955746 date "1993-10-01" @default.
- W4243955746 modified "2023-09-25" @default.
- W4243955746 title "The effect of cytokines on bactericidal activity of murine neutrophils" @default.
- W4243955746 doi "https://doi.org/10.1016/0928-8244(93)90022-v" @default.
- W4243955746 hasPublicationYear "1993" @default.
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