1986
DOI: 10.1182/blood.v68.3.708.708
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Granulocyte-macrophage colony-stimulating factor enhances phagocytosis of bacteria by human neutrophils

Abstract: In order to determine whether human granulocyte-macrophage colony- stimulating factor (GM-CSF) can enhance phagocytosis, neutrophils were combined with Staphylococcus aureus (S aureus), and both the number of bacteria per neutrophil and the percent of neutrophils phagocytizing were assessed in the absence and presence of GM-CSF. Exposure to GM-CSF did not enable neutrophils to ingest unopsonized bacteria. When bacteria were opsonized with serum, both the number of bacteria per neutrophil and the percent of cel… Show more

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Cited by 306 publications
(49 citation statements)
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“…Therefore, it is suggested that increased generation of active neutrophils is caused by the stimulation of hematopoietic bone marrow cells by DHP-induced CSFs in miniature pigs. In addition to the stimulatory effects of CSFs on hematopoietic progenitors, CSFs have been shown to augment phagocytic activity and superoxide generation of neutrophils (3,6). Taken together, it is suggested that although direct effect of DHP on peripheral blood leukocytes in vitro has not been determined because of its insoluble nature in medium, the enhanced phagocytic and killing activities of neutrophils in miniature pigs after injection with DHP are, at least in part, attributable to DHP-induced CSFs.…”
mentioning
confidence: 99%
“…Therefore, it is suggested that increased generation of active neutrophils is caused by the stimulation of hematopoietic bone marrow cells by DHP-induced CSFs in miniature pigs. In addition to the stimulatory effects of CSFs on hematopoietic progenitors, CSFs have been shown to augment phagocytic activity and superoxide generation of neutrophils (3,6). Taken together, it is suggested that although direct effect of DHP on peripheral blood leukocytes in vitro has not been determined because of its insoluble nature in medium, the enhanced phagocytic and killing activities of neutrophils in miniature pigs after injection with DHP are, at least in part, attributable to DHP-induced CSFs.…”
mentioning
confidence: 99%
“…It does invite speculation that despite an increase in F4 ⁄ 80 + cell infiltration to affected tissues, the functional activity of macrophages in the GM-CSF ) ⁄ ) mouse is compromised. This is supported by in vitro studies where a higher number of PMN were phagocytic to Staphylococcus aureus with GM-CSF pretreatment [21]. Furthermore, administration of GM-CSF has been shown to increase the expression of receptors CD11b, CD11c, FccRII [22] on macrophages and thus promotes the phagocytic abilities of macrophages.…”
Section: Discussionmentioning
confidence: 88%
“…CSFs have been found to activate reactive oxygen metabolism of PMNs [7,[24][25][26][27]. Furthermore, several groups have recently shown that GM-CSF in particular can enhance phagocytosis and killing activity of neutrophils and macrophages against pathogenic parasites [28][29][30][31]. More recently, Blanchard et al reported production of GM-CSF by Candidastimulated large granular lymphocytes (LGL) and such a product could stimulate PMNs to evince anti-Candida activity [32].…”
Section: Discussionmentioning
confidence: 99%