Kinetics of nitric oxide and hydrogen peroxide production and formation of peroxynitrite during the respiratory burst of human neutrophils
- 14 March 1994
- journal article
- Published by Wiley in FEBS Letters
- Vol. 341 (1), 65-68
- https://doi.org/10.1016/0014-5793(94)80241-6
Abstract
Nitric oxide (.NO) release, oxygen uptake and hydrogen peroxide (H2O2) production elicited by increasing phorbol 12-myristate 13-acetate (PMA) concentrations were measured in human neutrophils. Half-maximal activities were sequentially elicited at about 0.0001–0.001 μg (.NO) and 0.001-0.01 μg (H2O2). At saturated PMA concentrations, .NO production, oxygen uptake and H2O2 release were 0.56 ± 0.04, 3.32 ± 0.52 and 1.19±0.17 nmol · min−1 · 106 cells−1. .NO production accounts for about 30% of the total oxygen uptake. Luminol-dependent chemiluminescence, reported to detect NO reactions in other inflammatory cells, was also half-maximally activated at about 0.001-0.01 μg . Preincubation with N G-monomethyl-l-arginine (l-NMMA) decreased O2 uptake and .NO release but increased H2O2 production, while superoxide dismutase (SOD) increased .NO detection by 30%. Chemiluminescence was also reduced by preincubation with l-NMMA and/or SOD. The results indicate that .NO release is part of the integrated response of stimulated human neutrophils and that, in these cells, kinetics of ″NO and O2 .− release favour the formation of other oxidants like peroxynitrite.
Keywords
This publication has 26 references indexed in Scilit:
- The Reaction of no With SuperoxideFree Radical Research Communications, 1993
- Co-purification of 130 KD nitric oxide synthase and A 22 KD link protein from human neutrophilsBiochemical and Biophysical Research Communications, 1992
- Evidence for reactive nitrogen intermediates in killing of staphylococci by human neutrophil cytoplasts. A new microbicidal pathway for polymorphonuclear leukocytes.JCI Insight, 1992
- Reaction of No With O2−. Implications for the Action of Endothelium-Derived Relaxing Factor (EDRF)Free Radical Research Communications, 1990
- Formation and release of nitric oxide from human neutrophils and HL‐60 cells induced by a chemotactic peptide, platelet activating factor and leukotriene B4FEBS Letters, 1989
- Macrophage oxidation of L-arginine to nitrite and nitrate: nitric oxide is an intermediateBiochemistry, 1988
- Co-oxidation of luminol by hypochlorite and hydrogen peroxide implications for neutrophil chemiluminescenceBiochemical and Biophysical Research Communications, 1985
- Oxygen-Dependent Microbial Killing by PhagocytesNew England Journal of Medicine, 1978
- Biological Defense Mechanisms THE EFFECT OF BACTERIA AND SERUM ON SUPEROXIDE PRODUCTION BY GRANULOCYTESJCI Insight, 1974
- Biological Defense Mechanisms. THE PRODUCTION BY LEUKOCYTES OF SUPEROXIDE, A POTENTIAL BACTERICIDAL AGENTJCI Insight, 1973