[Nphe1,Arg14,Lys15]Nociceptin‐NH2, a novel potent and selective antagonist of the nociceptin/orphanin FQ receptor

Nociceptin/orphanin FQ (N/OFQ) modulates several biological functions by activating a specific G‐protein coupled receptor (NOP). Few molecules are available that selectively activate or block the NOP receptor. Here we describe the in vitro and in vivo pharmacological profile of a novel NOP receptor...

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Veröffentlicht in:British journal of pharmacology 2002-05, Vol.136 (2), p.303-311
Hauptverfasser: Calo, Girolamo, Rizzi, Anna, Rizzi, Daniela, Bigoni, Raffaella, Guerrini, Remo, Marzola, Giuliano, Marti, Matteo, McDonald, John, Morari, Michele, Lambert, David G, Salvadori, Severo, Regoli, Domenico
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container_title British journal of pharmacology
container_volume 136
creator Calo, Girolamo
Rizzi, Anna
Rizzi, Daniela
Bigoni, Raffaella
Guerrini, Remo
Marzola, Giuliano
Marti, Matteo
McDonald, John
Morari, Michele
Lambert, David G
Salvadori, Severo
Regoli, Domenico
description Nociceptin/orphanin FQ (N/OFQ) modulates several biological functions by activating a specific G‐protein coupled receptor (NOP). Few molecules are available that selectively activate or block the NOP receptor. Here we describe the in vitro and in vivo pharmacological profile of a novel NOP receptor ligand, [Nphe1,Arg14,Lys15]N/OFQ‐NH2 (UFP‐101). UFP‐101 binds to the human recombinant NOP receptor expressed in Chinese hamster ovary (CHO) cells with high affinity (pKi 10.2) and shows more than 3000 fold selectivity over classical opioid receptors. UFP‐101 competitively antagonizes the effects of N/OFQ on GTPγ35S binding in CHOhNOP cell membranes (pA2 9.1) and on cyclic AMP accumulation in CHOhNOP cells (pA2 7.1), being per se inactive at concentrations up to 10 μM. In isolated peripheral tissues of mice, rats and guinea‐pigs, and in rat cerebral cortex synaptosomes preloaded with [3H]‐5‐HT, UFP‐101 competitively antagonized the effects of N/OFQ with pA2 values in the range of 7.3–7.7. In the same preparations, the peptide was inactive alone and did not modify the effects of classical opioid receptor agonists. UFP‐101 is also active in vivo where it prevented the depressant action on locomotor activity and the pronociceptive effect induced by 1 nmol N/OFQ i.c.v. in the mouse. In the tail withdrawal assay, UFP‐101 at 10 nmol produces per se a robust and long lasting antinociceptive effect. UFP‐101 is a novel, potent and selective NOP receptor antagonist which appears to be a useful tool for future investigations of the N/OFQ‐NOP receptor system. British Journal of Pharmacology (2002) 136, 303–311; doi:10.1038/sj.bjp.0704706
doi_str_mv 10.1038/sj.bjp.0704706
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Few molecules are available that selectively activate or block the NOP receptor. Here we describe the in vitro and in vivo pharmacological profile of a novel NOP receptor ligand, [Nphe1,Arg14,Lys15]N/OFQ‐NH2 (UFP‐101). UFP‐101 binds to the human recombinant NOP receptor expressed in Chinese hamster ovary (CHO) cells with high affinity (pKi 10.2) and shows more than 3000 fold selectivity over classical opioid receptors. UFP‐101 competitively antagonizes the effects of N/OFQ on GTPγ35S binding in CHOhNOP cell membranes (pA2 9.1) and on cyclic AMP accumulation in CHOhNOP cells (pA2 7.1), being per se inactive at concentrations up to 10 μM. In isolated peripheral tissues of mice, rats and guinea‐pigs, and in rat cerebral cortex synaptosomes preloaded with [3H]‐5‐HT, UFP‐101 competitively antagonized the effects of N/OFQ with pA2 values in the range of 7.3–7.7. In the same preparations, the peptide was inactive alone and did not modify the effects of classical opioid receptor agonists. UFP‐101 is also active in vivo where it prevented the depressant action on locomotor activity and the pronociceptive effect induced by 1 nmol N/OFQ i.c.v. in the mouse. In the tail withdrawal assay, UFP‐101 at 10 nmol produces per se a robust and long lasting antinociceptive effect. UFP‐101 is a novel, potent and selective NOP receptor antagonist which appears to be a useful tool for future investigations of the N/OFQ‐NOP receptor system. 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Receptors ; Nociceptin/orphanin FQ ; NOP receptors ; Opioid Peptides - chemistry ; Opioid Peptides - metabolism ; Opioid Peptides - pharmacology ; Pain Measurement - drug effects ; Peptide Fragments - chemistry ; Peptide Fragments - metabolism ; Peptide Fragments - pharmacology ; Peptidergic system (neuropeptide, opioid peptide, opiates...). Adenosinergic and purinergic systems ; Pharmacology. 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Few molecules are available that selectively activate or block the NOP receptor. Here we describe the in vitro and in vivo pharmacological profile of a novel NOP receptor ligand, [Nphe1,Arg14,Lys15]N/OFQ‐NH2 (UFP‐101). UFP‐101 binds to the human recombinant NOP receptor expressed in Chinese hamster ovary (CHO) cells with high affinity (pKi 10.2) and shows more than 3000 fold selectivity over classical opioid receptors. UFP‐101 competitively antagonizes the effects of N/OFQ on GTPγ35S binding in CHOhNOP cell membranes (pA2 9.1) and on cyclic AMP accumulation in CHOhNOP cells (pA2 7.1), being per se inactive at concentrations up to 10 μM. In isolated peripheral tissues of mice, rats and guinea‐pigs, and in rat cerebral cortex synaptosomes preloaded with [3H]‐5‐HT, UFP‐101 competitively antagonized the effects of N/OFQ with pA2 values in the range of 7.3–7.7. In the same preparations, the peptide was inactive alone and did not modify the effects of classical opioid receptor agonists. UFP‐101 is also active in vivo where it prevented the depressant action on locomotor activity and the pronociceptive effect induced by 1 nmol N/OFQ i.c.v. in the mouse. In the tail withdrawal assay, UFP‐101 at 10 nmol produces per se a robust and long lasting antinociceptive effect. UFP‐101 is a novel, potent and selective NOP receptor antagonist which appears to be a useful tool for future investigations of the N/OFQ‐NOP receptor system. British Journal of Pharmacology (2002) 136, 303–311; doi:10.1038/sj.bjp.0704706</description><subject>Animals</subject><subject>Biological and medical sciences</subject><subject>Cell receptors</subject><subject>Cell structures and functions</subject><subject>CHO Cells</subject><subject>Cricetinae</subject><subject>Dose-Response Relationship, Drug</subject><subject>Fundamental and applied biological sciences. Psychology</subject><subject>Guinea Pigs</subject><subject>In Vitro Techniques</subject><subject>isolated tissues</subject><subject>locomotor activity, mice</subject><subject>Male</subject><subject>Medical sciences</subject><subject>Mice</subject><subject>Molecular and cellular biology</subject><subject>Motor Activity - drug effects</subject><subject>Motor Activity - physiology</subject><subject>Narcotic Antagonists</subject><subject>native and recombinant receptors</subject><subject>Neuropeptide receptors</subject><subject>Neuropharmacology</subject><subject>Neurotransmitters. Neurotransmission. Receptors</subject><subject>Nociceptin/orphanin FQ</subject><subject>NOP receptors</subject><subject>Opioid Peptides - chemistry</subject><subject>Opioid Peptides - metabolism</subject><subject>Opioid Peptides - pharmacology</subject><subject>Pain Measurement - drug effects</subject><subject>Peptide Fragments - chemistry</subject><subject>Peptide Fragments - metabolism</subject><subject>Peptide Fragments - pharmacology</subject><subject>Peptidergic system (neuropeptide, opioid peptide, opiates...). Adenosinergic and purinergic systems</subject><subject>Pharmacology. Drug treatments</subject><subject>Rabbits</subject><subject>rat cerebral cortex synaptosomes</subject><subject>Rats</subject><subject>Rats, Sprague-Dawley</subject><subject>receptor antagonist</subject><subject>Receptors, Opioid - metabolism</subject><subject>tail withdrawal assay</subject><subject>UFP‐101</subject><issn>0007-1188</issn><issn>1476-5381</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2002</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><sourceid>ABUWG</sourceid><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNpdkkGP0zAQhSMEYsvClSOKkODUdGdiJ3YvKy0rliJVBSQ4IWQ5zqR1lNohTot64yfwG_kleNkuC5xGnvfp6Y38kuQpwgyBybPQzqq2n4EALqC8l0yQizIrmMT7yQQARIYo5UnyKIQWIIqieJicYA4IQsIkCZ9X_YZwejGskU-Xh4DFl5U31lA_Wvfz-4_VIp-mOnV-T13a-5HcmGpXp4E6MqPdU3yNeu2dDWPqm3TcUIRvDc780G-0sy69-pAOdL30w-PkQaO7QE-O8zT5dPX64-UiW7578_byYpm1HHCeVagBCOvGcCNANnNooMKKcuR5UxfESHIuNTe1JDKGYalzwUs0RcV4yTg7Tc5vfPtdtaXaxOiD7lQ_2K0eDsprq_5VnN2otd8rLARjvIgGL48Gg_-6ozCqrQ2Guk478rugBJYxAocIPv8PbP1ucPE4laNAIYQUEXr2d5w_OW4_IwIvjoAORnfNoJ2x4Y5jYs7Zb47dcN9sR4c7HdR1JVRoVayEOlZCvXq_4OV8zn4BvKqq9w</recordid><startdate>200205</startdate><enddate>200205</enddate><creator>Calo, Girolamo</creator><creator>Rizzi, Anna</creator><creator>Rizzi, Daniela</creator><creator>Bigoni, Raffaella</creator><creator>Guerrini, Remo</creator><creator>Marzola, Giuliano</creator><creator>Marti, Matteo</creator><creator>McDonald, John</creator><creator>Morari, Michele</creator><creator>Lambert, David G</creator><creator>Salvadori, Severo</creator><creator>Regoli, Domenico</creator><general>Blackwell Publishing Ltd</general><general>Nature Publishing</general><scope>IQODW</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>3V.</scope><scope>7QP</scope><scope>7RV</scope><scope>7TK</scope><scope>7X7</scope><scope>7XB</scope><scope>88E</scope><scope>8AO</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M7P</scope><scope>NAPCQ</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>7X8</scope><scope>5PM</scope></search><sort><creationdate>200205</creationdate><title>[Nphe1,Arg14,Lys15]Nociceptin‐NH2, a novel potent and selective antagonist of the nociceptin/orphanin FQ receptor</title><author>Calo, Girolamo ; Rizzi, Anna ; Rizzi, Daniela ; Bigoni, Raffaella ; Guerrini, Remo ; Marzola, Giuliano ; Marti, Matteo ; McDonald, John ; Morari, Michele ; Lambert, David G ; Salvadori, Severo ; Regoli, Domenico</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-j4019-b1a00e1dfc4c708f90f0b1be2142fd5e3e8448a4cd8eecc316a27461c5b346343</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2002</creationdate><topic>Animals</topic><topic>Biological and medical sciences</topic><topic>Cell receptors</topic><topic>Cell structures and functions</topic><topic>CHO Cells</topic><topic>Cricetinae</topic><topic>Dose-Response Relationship, Drug</topic><topic>Fundamental and applied biological sciences. 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identifier ISSN: 0007-1188
ispartof British journal of pharmacology, 2002-05, Vol.136 (2), p.303-311
issn 0007-1188
1476-5381
language eng
recordid cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_1573345
source PubMed (Medline); MEDLINE; Wiley Online Library; Wiley Free Archive; Alma/SFX Local Collection; EZB Electronic Journals Library
subjects Animals
Biological and medical sciences
Cell receptors
Cell structures and functions
CHO Cells
Cricetinae
Dose-Response Relationship, Drug
Fundamental and applied biological sciences. Psychology
Guinea Pigs
In Vitro Techniques
isolated tissues
locomotor activity, mice
Male
Medical sciences
Mice
Molecular and cellular biology
Motor Activity - drug effects
Motor Activity - physiology
Narcotic Antagonists
native and recombinant receptors
Neuropeptide receptors
Neuropharmacology
Neurotransmitters. Neurotransmission. Receptors
Nociceptin/orphanin FQ
NOP receptors
Opioid Peptides - chemistry
Opioid Peptides - metabolism
Opioid Peptides - pharmacology
Pain Measurement - drug effects
Peptide Fragments - chemistry
Peptide Fragments - metabolism
Peptide Fragments - pharmacology
Peptidergic system (neuropeptide, opioid peptide, opiates...). Adenosinergic and purinergic systems
Pharmacology. Drug treatments
Rabbits
rat cerebral cortex synaptosomes
Rats
Rats, Sprague-Dawley
receptor antagonist
Receptors, Opioid - metabolism
tail withdrawal assay
UFP‐101
title [Nphe1,Arg14,Lys15]Nociceptin‐NH2, a novel potent and selective antagonist of the nociceptin/orphanin FQ receptor
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