4-Hydroxy-2-Nonenal Increases Superoxide Anion Radical in Endothelial Cells via Stimulated GTP Cyclohydrolase Proteasomal Degradation
نویسندگان
چکیده
منابع مشابه
4-Hydroxy-2-nonenal increases superoxide anion radical in endothelial cells via stimulated GTP cyclohydrolase proteasomal degradation.
OBJECTIVE 4-Hydroxy-2-nonenal (4-HNE) is an abundant electrophilic lipid that mediates oxidative stress in endothelium by mechanisms that remain controversial. This study examines the effects of 4-HNE on nitric oxide (NO) and superoxide levels in bovine aorta endothelial cells (BAECs). METHODS AND RESULTS Exposure of BAECs to 4-HNE caused a dose-dependent inhibition of NO that correlated with...
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4-Hydroxy-2-nonenal (4-HNE), a major product generated during oxidative stress, exhibits cytotoxic effects; however, the mechanisms of 4-HNE-induced endothelial cell injury are not well defined. To explore this issue, we examined how 4-HNE damages human umbilical vein endothelial cells (HUVECs) and found that 4-HNE induced biphasic activation of c-Jun N-terminal kinase (JNK). Both preand post-t...
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OBJECTIVE Endothelial nitric oxide synthase (eNOS) activity is supported by tetrahydrobiopterin (BH4), which appears to be important for generating protective NO but decreases uncoupling formation of superoxide. We investigated the effects of 3-hydroxy-3-methylglutaryl coenzyme A reductase inhibitors, or statins, in terms of BH4 metabolism in human umbilical vein endothelial cells (HUVECs). M...
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ژورنال
عنوان ژورنال: Arteriosclerosis, Thrombosis, and Vascular Biology
سال: 2007
ISSN: 1079-5642,1524-4636
DOI: 10.1161/atvbaha.107.153742