>>Signaling Pathways>> GPCR/G protein>> Prostaglandin Receptor>>U 46619

U 46619 (Synonyms: 9,11-dideoxy-9α,11α-methanoepoxy PGF2α, 9,11-dideoxy-9α,11α-methanoepoxy Prostaglandin F2α)

Catalog No.GC13205

PGH2/TxA2 (TP) 수용체의 선택적 작용제

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U 46619 Chemical Structure

Cas No.: 56985-40-1

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Sample solution is provided at 25 µL, 10mM.

Product has been cited by 1 publications

Description Protocol Chemical Properties Quality Control Product Documents Related Video Related Products

EC50: 0.035 μM for shape change, 0.057 μM for MLCP, 0.536 μM for serotonin release, 1.31 μM for aggregation and 0.53 μM for fibrinogen receptor binding [3].

Prostaglandin endoperoxide analogue U46619 (11,9 epoxymethano-prostaglandin H2) is a selective agonist of prostaglandin H2 (PGH2)/thromboxane A2 (TxA2) (TP) receptor. Both PGH2 and TxA2 receptors are G-protein coupled receptors.

In vitro: U46619 showed a biphasic effect on human platelets. Shape change and MLCP occurred at low concentrations of this compound (EC50 = 0.035 uM and 0.057 uM), whereas serotonin release, platelet at higher concentrations (EC50 = 0.536 uM and 1.31 uM). The effect on platelet shape change and MLCP is receptor mediated [3].

In vivo:. U46619, through activation of ETA and ETB receptors, elicits renal cortical vasoconstriction and medullary vasodilation in the rat [2]. In conscious SHR (spontaneously hypertensive rats), 1-100 nmol/kg U-46619 (i.c.v.) induced a dose-related increase in blood pressure but had no significant effect on heart rate [1].

Clinical trial: So far, no clinical study has been conducted.

[1] Sirén AL, Svartstrm-Fraser M, Paakkari I.  Central cardiovascular effects of the endoperoxide analogue U-46619 in rats. Prostaglandins Leukot Med. 1985 Mar;17(3):381-6.
[2] Hantz H, Adesuyi A, Adebayo O.  Differential effects of U46619 on renal regional hemodynamics in the rat: involvement of endothelin. J Pharmacol Exp Ther. 2001 Oct;299(1):372-6.
[3] Morinelli TA1, Niewiarowski S, Daniel JL, Smith JB.  Receptor-mediated effects of a PGH2 analogue (U 46619) on human platelets. Am J Physiol. 1987 Nov;253(5 Pt 2):H1035-43.


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