Antiinflammatory potential of lipoxygenase-derived eicosanoids: a molecular switch at 5 and 15 positions?
نویسندگان
چکیده
منابع مشابه
Interleukin-13 upregulates vasodilatory 15-lipoxygenase eicosanoids in rabbit aorta.
OBJECTIVE Vasorelaxation of rabbit aorta is mediated by factors released from the vascular endothelium. In the aortic endothelium, arachidonic acid (AA) is metabolized via the 15-lipoxygenase pathway to the vasodilatory compounds 11,12,15-trihydroxyeicosatrienoic acid (THETA) and 15-hydroxy-11,12-epoxyeicosatrienoic acid (HEETA). Interleukin-13 (IL-13) increases 15-lipoxygenase expression and a...
متن کاملHuman CYP2S1 metabolizes cyclooxygenase- and lipoxygenase-derived eicosanoids.
CYP2S1 is a recently described dioxin-inducible cytochrome P450. We previously demonstrated that human CYP2S1 oxidizes a number of carcinogens but only via the peroxide shunt. In this article, we investigated whether human CYP2S1 can metabolize cyclooxygenase- and lipoxygenase-derived lipid peroxides in a NADPH-independent fashion. Human CYP2S1 metabolizes prostaglandin G(2) (PGG(2)) (K(m) = 0....
متن کاملExpression of 5-lipoxygenase and 15-lipoxygenase in rheumatoid arthritis synovium and effects of intraarticular glucocorticoids
INTRODUCTION It was previously shown that lipoxygenase (LO) pathways are important in the rheumatoid arthritis (RA) inflammatory process and that synovial fluid from RA patients contains high amounts of leukotrienes. We therefore aimed to investigate the 5-LO and 15-LO-1 expression pattern in RA and ostheoarthritis (OA) synovial tissue and to study the effect of intraarticular glucocorticoid (G...
متن کاملBiosynthesis of hemiketal eicosanoids by cross-over of the 5-lipoxygenase and cyclooxygenase-2 pathways.
The prostaglandin and leukotriene families of lipid mediators are formed via two distinct biosynthetic pathways that are initiated by the oxygenation of arachidonic acid by either cyclooxygenase-2 (COX-2) or 5-lipoxygenase (5-LOX), respectively. The 5-LOX product 5S-hydroxyeicosatetraenoic acid, however, can also serve as an efficient substrate for COX-2, forming a bicyclic diendoperoxide with ...
متن کاملALOX 15 ( arachidonate 15 - lipoxygenase )
Hugo: ALOX15 Other names: 15-LOX; EC 1.13.11.33; arachidonate omega 6-lipoxygenase; LOG15 Location: 17p13.3 Local order: Genes flanking ALOX15 in centromere to telomere direction on 17p13 are: MYBBP1A 17p13.3 MYB binding protein (P160) 1a, GGT6 17p13.2 homolog of gammaglutamyltransferase 6, LOC124974 17p13.2, thioredoxin 1 pseudogene 4, SMTNL2 17p13.2 smoothelin-like 2, ALOX15 17p13.2 arachidon...
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ژورنال
عنوان ژورنال: Journal of Clinical Investigation
سال: 1997
ISSN: 0021-9738
DOI: 10.1172/jci119268