Anti-inflammatory properties of cytochrome P450 epoxygenase-derived eicosanoids

K Node, Y Huo, X Ruan, B Yang, M Spiecker, K Ley… - Science, 1999 - science.org
K Node, Y Huo, X Ruan, B Yang, M Spiecker, K Ley, DC Zeldin, JK Liao
Science, 1999science.org
The epoxyeicosatrienoic acids (EETs) are products of cytochrome P450 epoxygenases that
have vasodilatory properties similar to that of endothelium-derived hyperpolarizing factor.
The cytochrome P450 isoform CYP2J2 was cloned and identified as a potential source of
EETs in human endothelial cells. Physiological concentrations of EETs or overexpression of
CYP2J2 decreased cytokine-induced endothelial cell adhesion molecule expression, and
EETs prevented leukocyte adhesion to the vascular wall by a mechanism involving inhibition …
The epoxyeicosatrienoic acids (EETs) are products of cytochrome P450 epoxygenases that have vasodilatory properties similar to that of endothelium-derived hyperpolarizing factor. The cytochrome P450 isoform CYP2J2 was cloned and identified as a potential source of EETs in human endothelial cells. Physiological concentrations of EETs or overexpression of CYP2J2 decreased cytokine-induced endothelial cell adhesion molecule expression, and EETs prevented leukocyte adhesion to the vascular wall by a mechanism involving inhibition of transcription factor NF-κB and IκB kinase. The inhibitory effects of EETs were independent of their membrane-hyperpolarizing effects, suggesting that these molecules play an important nonvasodilatory role in vascular inflammation.
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