title: Autocrine actions of macrophage-derived catecholamines on interleukin-1 beta.
abstract: Previous studies indicate that norepinephrine and epinephrine modulate production of interleukin-1(beta) (IL-1(beta)) by activated macrophages, but it is not known if macrophage-derived catecholamines affect IL-1(beta). In this study, recruited peritoneal macrophages from CBA/J female mice were activated with lipopolysaccharide (LPS) and treated with vehicle or adrenergic receptor antagonists for 24 h. Extracellular and intracellular levels of IL-1(beta) were measured with ELISA. Treatment with the beta-adrenergic receptor antagonists propranolol or ICI 118,551 increased LPS-induced production of IL-1(beta), whereas treatment with the alpha-adrenergic antagonists phentolamine or yohimbine decreased IL-1(beta). These findings demonstrate that adrenergic receptor antagonists unmask autocrine actions of macrophage-derived catecholamines on IL-1(beta) that may influence the inflammatory response.
authors.affiliation: Department of Biology, Virginia Commonwealth University, Richmond, VA 23284, USA.
authors.forename: Kristie L
authors.initials: KL
authors.lastname: Engler
authors.forename: Meghan L
authors.initials: ML
authors.lastname: Rudd
authors.forename: John J
authors.initials: JJ
authors.lastname: Ryan
authors.forename: Jennifer K
authors.initials: JK
authors.lastname: Stewart
authors.forename: Krista
authors.initials: K
authors.lastname: Fischer-Stenger
mesh_terms: D000276:Adjuvants, Immunologic / Q000494:pharmacology; D000317:Adrenergic alpha-Antagonists / Q000494:pharmacology; D000319:Adrenergic beta-Antagonists / Q000494:pharmacology; D000818:Animals; D019898:Autocrine Communication / Q000187:drug effects / Q000276:immunology*; D002395:Catecholamines / Q000502:physiology*; D002470:Cell Survival / Q000187:drug effects / Q000276:immunology; D005110:Extracellular Space / Q000187:drug effects / Q000276:immunology / Q000378:metabolism; D007375:Interleukin-1 / Q000037:antagonists & inhibitors / Q000096:biosynthesis / Q000378:metabolism*; D007424:Intracellular Fluid / Q000187:drug effects / Q000276:immunology / Q000378:metabolism; D008070:Lipopolysaccharides / Q000494:pharmacology; D008262:Macrophage Activation / Q000187:drug effects / Q000276:immunology; D017737:Macrophages, Peritoneal / Q000187:drug effects / Q000276:immunology / Q000378:metabolism*; D051379:Mice; D008808:Mice, Inbred CBA; D011412:Propanolamines / Q000494:pharmacology
chemical_list: D000276:Adjuvants, Immunologic; D000317:Adrenergic alpha-Antagonists; D000319:Adrenergic beta-Antagonists; D002395:Catecholamines; D007375:Interleukin-1; D008070:Lipopolysaccharides; D011412:Propanolamines; C026777:ICI 118551