RF9

RF9

CAT N°: 31412
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From 140.00 119.00

RF9 is a neuropeptide FF (NPFF) receptor antagonist.{57271} It binds to human NPFF1 and NPFF2 receptors with Ki values of 58 and 75 nM, respectively. It is selective for NPFF1 and NPFF2 receptors over neuropeptide Y (NPY) receptor Y1, GPR10, GPR54, GPR103, ORL-1, and ?-, ?-, and ?-opioid receptors at 10 ?M. RF9 (7.5 ?M) inhibits NPFF-induced [35S]GTP?S binding to the NPFF2 receptor. It reverses NPVF-induced inhibition of forskolin-stimulated cAMP accumulation in CHO cells expressing the human NPFF1 receptor (EC50 = 4.7 ?M). Intracerebroventricular administration of RF9 (10 ?g) inhibits NPFF-induced increases in mean arterial pressure and heart rate in rats. It prevents heroin-induced delayed hyperalgesia and associated tolerance in rats when administered subcutaneously at a dose of 0.1 mg/kg.

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