Proinflammatory cytokine inhibitors, TNF- and oxidative burst of polymorphonuclear leukocytes in the pathogenesis of sepsis in newborns

• Authors: J.P. Sikora , D. Chlebna-Sokol , I. Dabrowska , D. Lipczynski , S. Chrul
• Languages of publication: EN

Abstracts

EN

This study was to evaluate the levels of the proinflammatory cytokine tumor necrosis factor alpha (TNF-) and the cytokine inhibitors soluble TNF- receptor (sTNFR) and IL-1 receptor antagonist (IL-1 ra) as well as the intensity of oxidative metabolism of peripheral blood polymorphonuclear leukocytes in the course of sepsis in newborns. An increase of TNF-, sTNFR and IL-1 ra concentrations was found in the blood serum of the patients at the time of diagnosis. This was further accompanied by polymorphonuclear leukocyte stimulation and, as a consequence of prolonged bacterial antigen stimulation, functional exhaustion of these cells and their diminished oxidative metabolism was observed. Within the same time period, an enhanced expression of p55 and p75 TNF- receptors on polymorphonuclear leukocyte cell surfaces was found. It was indicated that the applied pharmacotherapy caused a decrease of the initially elevated concentrations of TNF- and proinflammatory cytokine inhibitors (sTNFR, IL-1 ra). The intensive therapy of sepsis was associated with the increased oxidative burst of polymorphonuclear leukocytes along with the decrease of p55 and p75 expression on their cell surfaces.

Keywords

EN

CYTOKINE INHIBITOR; NEUTROPHIL; OXIDATIVE BURST; SEPSIS

Discipline

• IMMUNOLOGY: IMMUNOLOGY

• Publisher: Ludwik Hirszfeld Institute of Immunology and Experimental Therapy, Polish Academy of Sciences
• Journal: Archivum Immunologiae et Therapiae Experimentalis
• Year: 2001
• Volume: 49
• Issue: 2
• Pages: 155-162

Contributors

author

J.P. Sikora

author

D. Chlebna-Sokol

author

I. Dabrowska

author

D. Lipczynski

author

S. Chrul

• Document Type: ARTICLE
• Publication order reference: J.P.Sikora, Department of Pediatric Propedeutics, Institute of Pediatrics, Medical University of Lodz, Sporna 36/50, 91-738 Lodz, Poland