F 4 -neuroprostanes and F 2 -dihomo-isoprostanes: biomarkers and bioactive oxylipins

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Durand, Thierry | Bultel-Poncé, Valérie | Guy, Alexandre | Gros, Valérie | Reversat, Guillaume | Vigor, Claire | Galano, Jean-Marie | Oger, Camille

Edité par CCSD ; EDP -

International audience. Under condition of oxidative stress, free radical-catalyzed peroxidation of docosahexaenoic acid (DHA) and adrenic acid (AdA) generates in vivo neuroprostanes (NeuroPs) and dihomo-isoprostanes (dihomo-IsoPs), among a large number of key products participating in many pathophysiological processes. These non-enzymatic oxygenated metabolites display a wide range of biological actions (especially DHA-metabolites), and some of them are now considered as the most reliable indicators of oxidative stress in neurogenerative, neurodevelopmental or cardiovascular diseases. In this review, we will present an overview regarding neuroprostanes and dihomo-isoprostanes and discuss about their biological interests. . Dans des conditions de stress oxydatif, la peroxydation, catalysée par les radicaux libres de l’acide docosahexaénoïque (DHA) et de l’acide adrénique (AdA) génère, parmi un grand nombre de produits clés participant à de nombreux processus physiopathologiques, des neuroprostanes (NeuroPs) et dihomo-isoprostanes (dihomo-IsoPs). Ces métabolites oxygénés non-enzymatiques présentent de nombreuses activités biologiques, et certains d’entre eux sont désormais considérés comme les biomarqueurs les plus fiables du stress oxydatif dans les maladies neurogénératives, neurodéveloppementales ou encore cardiovasculaires. Dans cette revue, seront présentés les différents travaux autour des neuroprostanes et dihomo-isoprostanes, et notamment leur intérêt biologique.

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