Cutaneous Responses to 12-Hydroxy-5,8,10,14-eicosatetraenoic Acid (12-HETE)
نویسندگان
چکیده
منابع مشابه
12(R)-Hydroxy-5(Z),8(Z),10(E),14(Z)-eicosatetraenoic acid [12(R)-HETE], an arachidonic acid derivative, is an activator of the aryl hydrocarbon receptor.
The aryl hydrocarbon receptor (AHR) is a ligand-regulated transcription factor that can be activated by structurally diverse chemicals, ranging from environmental carcinogens to dietary metabolites. Evidence supporting a necessary role for the AHR in normal biology has been established; however, identification of key endogenous ligand/activator remains to be established. Here, we report the abi...
متن کاملMechanism for the formation of dihydro metabolites of 12-hydroxyeicosanoids. Conversion of leukotriene B4 and 12-hydroxy-5,8,10,14-eicosatetraenoic acid to 12-oxo intermediates.
Eicosanoids containing a 12-hydroxyl group preceded by at least two conjugated double bonds are metabolized to 10,11-dihydro and 10,11-dihydro-12-oxo products by porcine polymorphonuclear leukocytes (PMNL) (Wainwright, S. L., Falck, J. R., Yadagiri, P., and Powell, W. S. (1990) Biochemistry 29, 10126-10135). These 10,11-dihydro metabolites could either have been formed by the direct reduction o...
متن کاملMacrophage Hydroxy - Eicosatetraenoic Acid Metabolism
Mouse resident macrophages are potent sources of arachidonic acid (20:4) 1 metabolites generated via both the cyclooxygenase and lipoxygenase pathways (1-5). The phospholipids of this cell are highly enriched with 20:4, and upon appropriate membrane stimulation, up to 50% of endogenous 20:4 is released and metabolized to a mixture of prostaglandins, hydroxy-eicosatetraenoic acids (HETEs), and l...
متن کاملStimulation of human eosinophil and neutrophil polymorphonuclear leukocyte chemotaxis and random migration by 12-L-hydroxy-5,8,10,14-eicosatetraenoic acid.
A human platelet lipoxygenase-generated product of arachidonic acid, identified by thin-layer chromatographic and mass spectrometric properties as 12-L-hydroxy-5,8,10,14-eicosatertraenoic acid (HETE), was selectively chemotactic in vitro for human polymorphonuclear leukocytes (PMN), as compared to mononuclear leukocytes, with a preference for eosinophils. Preincubation of PMN with partially-pur...
متن کاملAltered responses of human macrophages to lipopolysaccharide by hydroperoxy eicosatetraenoic acid, hydroxy eicosatetraenoic acid, and arachidonic acid. Inhibition of tumor necrosis factor production.
The regulation of allergic and autoimmune inflammatory reactions by polyunsaturated fatty acids and their metabolic products (eicosanoids) continues to be of major interest. Our data demonstrate that arachidonic acid 5,8,11,14-eicosatetraenoic acid (20:4n-6) and its hydroxylated derivatives 15(s)-hydroxy-5,8,11,13-eicosatetraenoic acid (15-HETE) and 15(s)-hydroperoxy-5,8,11,13-eicosatetraenoic ...
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ژورنال
عنوان ژورنال: Journal of Investigative Dermatology
سال: 1985
ISSN: 0022-202X
DOI: 10.1111/1523-1747.ep12273537