Neutrophil-derived Oxidants and Proteinases as Immunomodulatory Mediators in Inflammation

Neutrophils generate potent microbicidal molecules via the oxygen-dependent pathway, leading to the generation of reactive oxygen intermediates (ROI), and via the non-oxygen dependent pathway, consisting in the release of serine proteinases and metalloproteinases stored in granules. Over the past ye...

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Main Authors: V. Witko-Sarsat, B. Descamps-Latscha
Format: Article
Language:English
Published: Wiley 1994-01-01
Series:Mediators of Inflammation
Online Access:http://dx.doi.org/10.1155/S0962935194000360
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author V. Witko-Sarsat
B. Descamps-Latscha
author_facet V. Witko-Sarsat
B. Descamps-Latscha
author_sort V. Witko-Sarsat
collection DOAJ
description Neutrophils generate potent microbicidal molecules via the oxygen-dependent pathway, leading to the generation of reactive oxygen intermediates (ROI), and via the non-oxygen dependent pathway, consisting in the release of serine proteinases and metalloproteinases stored in granules. Over the past years, the concept has emerged that both ROI and proteinases can be viewed as mediators able to modulate neutrophil responses as well as the whole inflammatory process. This is well illustrated by the oxidative regulation of proteinase activity showing that oxidants and proteinases acts is concert to optimize the microbicidal activity and to damage host tissues. ROI and proteinases can modify the activity of several proteins involved in the control of inflammatory process. Among them, tumour necrosis factor-α and interleukin-8, are elective targets for such a modulation. Moreover, ROI and proteinases are also able to modulate the adhesion process of neutrophils to endothelial cells, which is a critical step in the inflammatory process.
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spelling doaj-art-f3dfd430458449639b669bac6c6152542025-02-03T07:24:45ZengWileyMediators of Inflammation0962-93511466-18611994-01-013425727310.1155/S0962935194000360Neutrophil-derived Oxidants and Proteinases as Immunomodulatory Mediators in InflammationV. Witko-Sarsat0B. Descamps-Latscha1INSERM U25, Hôpital Necker, 161 rue de Sèvres, Paris 75743, FranceINSERM U25, Hôpital Necker, 161 rue de Sèvres, Paris 75743, FranceNeutrophils generate potent microbicidal molecules via the oxygen-dependent pathway, leading to the generation of reactive oxygen intermediates (ROI), and via the non-oxygen dependent pathway, consisting in the release of serine proteinases and metalloproteinases stored in granules. Over the past years, the concept has emerged that both ROI and proteinases can be viewed as mediators able to modulate neutrophil responses as well as the whole inflammatory process. This is well illustrated by the oxidative regulation of proteinase activity showing that oxidants and proteinases acts is concert to optimize the microbicidal activity and to damage host tissues. ROI and proteinases can modify the activity of several proteins involved in the control of inflammatory process. Among them, tumour necrosis factor-α and interleukin-8, are elective targets for such a modulation. Moreover, ROI and proteinases are also able to modulate the adhesion process of neutrophils to endothelial cells, which is a critical step in the inflammatory process.http://dx.doi.org/10.1155/S0962935194000360
spellingShingle V. Witko-Sarsat
B. Descamps-Latscha
Neutrophil-derived Oxidants and Proteinases as Immunomodulatory Mediators in Inflammation
Mediators of Inflammation
title Neutrophil-derived Oxidants and Proteinases as Immunomodulatory Mediators in Inflammation
title_full Neutrophil-derived Oxidants and Proteinases as Immunomodulatory Mediators in Inflammation
title_fullStr Neutrophil-derived Oxidants and Proteinases as Immunomodulatory Mediators in Inflammation
title_full_unstemmed Neutrophil-derived Oxidants and Proteinases as Immunomodulatory Mediators in Inflammation
title_short Neutrophil-derived Oxidants and Proteinases as Immunomodulatory Mediators in Inflammation
title_sort neutrophil derived oxidants and proteinases as immunomodulatory mediators in inflammation
url http://dx.doi.org/10.1155/S0962935194000360
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