title: Cytokine production from freshly harvested human mononuclear cells attached to plastic beads.
abstract: The release of tumor necrosis factor (TNF), interleukin-1 beta (IL-1) and granulocyte-macrophage colony-stimulating factor (GM-CSF) from freshly harvested monocytes and lymphocytes attached to plastic beads was investigated. Previous studies had shown that freshly harvested endothelial cells attached to microcarrier beads release an endothelium-derived relaxing factor. Attachment of freshly harvested lymphocytes and monocytes to plastic beads created a dense network, consisting of 25% monocytes and 75% lymphocytes as shown by flow cytometry. Viability of cells was 90%. Monocytes were characterized by phagocytosis and non-specific esterase stain. Freshly harvested cells stimulated with lipoprotein lipase (LPS) released TNF and IL-1. Non-stimulated cells also produced GM-CSF five hours after collection of blood.
authors.affiliation: Department of Experimental Cardiology, Huntington Medical Research Institutes, Pasadena, CA 91105.
authors.forename: R J
authors.initials: RJ
authors.lastname: Bing
authors.forename: R
authors.initials: R
authors.lastname: Dudek
authors.forename: J
authors.initials: J
authors.lastname: Kähler
authors.forename: K S
authors.initials: KS
authors.lastname: Narayan
authors.forename: M
authors.initials: M
authors.lastname: Ingram
mesh_terms: D002449:Cell Aggregation; D002460:Cell Line; D016178:Granulocyte-Macrophage Colony-Stimulating Factor / Q000378:metabolism*; D006801:Humans; D007375:Interleukin-1 / Q000378:metabolism*; D008070:Lipopolysaccharides; D008863:Microspheres; D009000:Monocytes / Q000378:metabolism*; D010587:Phagocytosis; D010969:Plastics; D014409:Tumor Necrosis Factor-alpha / Q000378:metabolism*
chemical_list: D007375:Interleukin-1; D008070:Lipopolysaccharides; D010969:Plastics; D014409:Tumor Necrosis Factor-alpha; D016178:Granulocyte-Macrophage Colony-Stimulating Factor