title: Interleukin-10 inhibits proinflammatory activation of endothelium in response to Borrelia burgdorferi or lipopolysaccharide but not interleukin-1beta or tumor necrosis factor alpha.
abstract: Interleukin (IL)-10 is generally regarded as an anti-inflammatory cytokine, since it acts on a variety of cell types to suppress production of proinflammatory mediators. In inflammation, endothelial cells (EC) play a crucial role in recruiting leukocytes to sites of injury or infection. In this study, the actions of IL-10 on human umbilical vein EC were investigated. IL-10 reduced migration of monocytes and T lymphocytes across endothelium stimulated by lipopolysaccharide and decreased endothelial production of chemokines in response to lipopolysaccharide and Borrelia burgdorferi, the agent of Lyme disease. However, IL-10 did not affect these responses when EC were activated by the host proinflammatory cytokines IL-lbeta or tumor necrosis factor alpha. Moreover, IL-10 did not prevent up-regulation of the adhesion molecules E-selectin and intercellular adhesion molecule-1 by EC exposed to any of these activating agents. IL-10 therefore inhibits proinflammatory activation of EC in a manner that is selective with respect to stimulus and effector response.
authors.affiliation: Center for Infectious Diseases and Department of Pathology, State University of New York at Stony Brook, 11794-5120, USA. tlisinsk@notes.cc.sunysb.edu
authors.forename: Tracy J
authors.initials: TJ
authors.lastname: Lisinski
authors.forename: Martha B
authors.initials: MB
authors.lastname: Furie
mesh_terms: D001426:Bacterial Proteins / Q000096:biosynthesis / Q000235:genetics; D025065:Borrelia burgdorferi / Q000276:immunology*; D002465:Cell Movement / Q000187:drug effects; D002478:Cells, Cultured / Q000187:drug effects; D019040:E-Selectin / Q000096:biosynthesis / Q000235:genetics; D004730:Endothelium, Vascular / Q000187:drug effects*; D005786:Gene Expression Regulation / Q000187:drug effects; D006801:Humans; D018799:Intercellular Adhesion Molecule-1 / Q000096:biosynthesis / Q000235:genetics; D007375:Interleukin-1 / Q000494:pharmacology*; D016753:Interleukin-10 / Q000494:pharmacology*; D016209:Interleukin-8 / Q000096:biosynthesis / Q000235:genetics; D008070:Lipopolysaccharides / Q000494:pharmacology*; D008565:Membrane Proteins / Q000096:biosynthesis / Q000235:genetics; D012333:RNA, Messenger / Q000096:biosynthesis; D011993:Recombinant Fusion Proteins / Q000494:pharmacology; D014409:Tumor Necrosis Factor-alpha / Q000494:pharmacology*; D014471:Umbilical Veins
chemical_list: D001426:Bacterial Proteins; D019040:E-Selectin; D007375:Interleukin-1; D016209:Interleukin-8; D008070:Lipopolysaccharides; D008565:Membrane Proteins; D012333:RNA, Messenger; D011993:Recombinant Fusion Proteins; D014409:Tumor Necrosis Factor-alpha; D018799:Intercellular Adhesion Molecule-1; D016753:Interleukin-10