128914-46-5

Electrolyte and fluid transport in the kidney are regulated in part by arachidonic acid and its metabolites. (±)16-HETE is the racemic version of a minor CYP450 metabolite of arachidonic acid released by the kidney upon angiotensin II stimulation. The biological activity of 16-HETE is stereospecific. 16(R)-HETE dose-dependently stimulates vasodilation of the rabbit kidney, however 16(S)-HETE does not affect perfusion pressure. At a concentration of 2 μM the (S)-enantiomer of 16-HETE inhibits proximal tubule ATPase activity by as much as 60%, whereas the (R)-isomer has negligible effects on ATPase activity.

16-HETE is arachidonic acid metabolite through subterminal hydroxylation by cytochrome P-450. 16-HETE exhibits vasodilatory and PMN inhibitory effects and serves as biomarker for early stages of non-alcoholic fatty liver disease[1][2][3].

ChEBI: A HETE that consists of arachidonic acid bearing an additional hydroxy substituent at position 16.

Store at -20°C

[1] Bednar MM, et al., 16(R)-hydroxyeicosatetraenoic acid, a novel cytochrome P450 product of arachidonic acid, suppresses activation of human polymorphonuclear leukocyte and reduces intracranial pressure in a rabbit model of thromboembolic stroke. Neurosurgery. 2000 Dec;47(6):1410-8; discussion 1418-9. PMID:11126912
[2] Carroll MA, e al., Cytochrome P-450-dependent HETEs: profile of biological activity and stimulation by vasoactive peptides. Am J Physiol. 1996 Oct;271(4 Pt 2):R863-9. DOI:10.1152/ajpregu.1996.271.4.R863
[3] Maciejewska D, et al., Metabolites of arachidonic acid and linoleic acid in early stages of non-alcoholic fatty liver disease--A pilot study. Prostaglandins Other Lipid Mediat. 2015 Sep;121(Pt B):184-9. DOI:10.1016/j.prostaglandins.2015.09.003