Pharmacological characterization of the mouse NPFF2 receptor

Peptides
Franck TalmontCatherine Mollereau

Abstract

This study presents the binding and functional properties of the mouse NPFF(2) (mNPFF(2)) receptor, in comparison with its human counterpart (hNPFF(2)). Binding experiments were performed by using the NPFF(2) selective radioligand [(3)H]-EYF in membranes from CHO cells transfected with mouse and human NPFF(2) receptors and compared to membranes from mouse olfactory bulb, the brain region expressing the highest density of NPFF(2) receptors in mouse. mNPFF(2) receptors exhibited a high affinity (Kd=0.2-0.4 nM) for [(3)H]-EYF, comparable to that of hNPFF(2) receptors. Also, the binding selectivity profile of mNPFF(2) receptors was comparable to that of hNPFF(2) receptors, except for three ligands (NPSF, NPVF, RF9) that were about tenfold more potent and active on mouse receptors than on human receptors. In particular, compared to hNPFF(2) receptors, mNPFF(2) receptors were less discriminative towards the proNPFF(B)-derived peptide. This suggests some species-related differences in the binding properties of NPFF(2) receptors that could have repercussion when evaluating the pharmacological properties of drugs in vivo.

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Citations

Feb 26, 2013·Chemical Reviews·Lukas WankaPeter R Schreiner
Oct 19, 2014·The Journal of Biological Chemistry·Lauriane BrayLionel Moulédous
Oct 1, 2014·Journal of Medicinal Chemistry·V Blair JourniganChristopher R McCurdy

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