Cardioprotective effect of a dual acting epoxyeicosatrienoic acid analogue towards ischaemia reperfusion injury

British Journal of Pharmacology
S N BatchuJ M Seubert


Epoxyeicosatrienoic acids (EETs) are cytochrome P450 epoxygenase metabolites of arachidonic acid that are metabolized into dihydroxyepoxyeicosatrienoic acids (DHET) by soluble epoxide hydrolase (sEH). The current investigations were performed to examine the cardioprotective effects of UA-8 (13-(3-propylureido)tridec-8-enoic acid), a synthetic compound that possesses both EET-mimetic and sEH inhibitory properties, against ischaemia-reperfusion injury. Hearts from C57BL/6 mice were perfused in Langendorff mode and subjected to ischaemia reperfusion. Mechanistic studies involved co-perfusing hearts with either 14,15-EEZE (a putative EET receptor antagonist), wortmannin or PI-103 (class-I PI3K inhibitor). H9c2 cells were utilized to investigate the protective effects against mitochondrial injury following anoxia reoxygenation. Perfusion of UA-8 significantly improved postischaemic left ventricular developed pressure (LVDP) and reduced infarction following ischaemia reperfusion compared with control and 11,12-EET. UA-7 (13-(2-(butylamino)-2-oxoacetamido)tridec-8(Z)-enoic acid), a compound lacking sEH inhibitory properties, also improved postischaemic LVDP, while co-perfusion with 14,15-EEZE, wortmannin or PI-103 attenuated the impro...Continue Reading


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