Rapid deactivation of NADPH oxidase in neutrophils: continuous replacement by newly activated enzyme sustains the respiratory burst
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منابع مشابه
Rapid deactivation of NADPH oxidase in neutrophils: continuous replacement by newly activated enzyme sustains the respiratory burst.
The cell-free system for activation of the neutrophil NADPH oxidase allowed us to examine activation of the oxidase in the absence of its NADPH-dependent turnover. The covalent sulfhydryl-modifying reagent N-ethylmaleimide completely inhibited the activation step (Ki = 40 mumol/L) in the cell-free system but had no effect on turnover of the preactivated particulate NADPH oxidase (up to 1 mmol/L...
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Oxidative stress contributes to the pathogenesis of atherosclerosis. p22phox-based NAD(P)H oxidases exist in the vessel wall, acting as important superoxide-generating systems in the vasculature. Some studies have identified reduced atherosclerosis in the presence of the C242T CYBA polymorphism, whereas others have not. Because vascular p22phox is identical to neutrophil p22phox, we studied the...
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In a fully soluble system from resting human neutrophils, activation of the respiratory burst oxidase under defined conditions was found to follow first-order kinetics. The manner in which this first-order activation process varied with the concentrations of the individual components in the activating system suggested the following. 1) The respiratory burst oxidase occurs in two forms that can ...
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ژورنال
عنوان ژورنال: Blood
سال: 1988
ISSN: 0006-4971,1528-0020
DOI: 10.1182/blood.v72.1.322.322