Pharmacological Assays for Investigating the NOP Receptor
- 1 Citations
- 455 Downloads
Abstract
The nociceptin/orphanin FQ (N/OFQ) peptide receptor (NOP) is a G protein-coupled receptor involved in the regulation of several physiological functions and pathological conditions. Thus, researchers from academia and industry are pursuing NOP to discover and study novel pharmacological entities. In a multidisciplinary effort of pharmacologists, medicinal chemists, and molecular and structural biologists the mechanisms of NOP activation and inhibition have been, at least partially, disentangled. Here, we review the in vitro methodologies employed, which have contributed to our understanding of this target. We hope this chapter guides the reader through the mostly established assay platforms to investigate NOP pharmacology, and gives some hints taking advantage from what has already illuminated the function of other GPCRs. We analyzed the pharmacological results obtained with a large panel of NOP ligands investigated in several assays including receptor binding, stimulation of GTPγS binding, decrease of cAMP levels, calcium flux stimulation via chimeric G proteins, NOP/G protein and NOP/β-arrestin interaction, label-free assays such as dynamic mass redistribution, and bioassays such as the electrically stimulated mouse vas deferens.
Keywords
N/OFQ Pharmacological assays Recombinant and native NOP receptors Signal transductionNotes
Acknowledgment
We would like to thank T. Kenakin (Department of Pharmacology, University of North Carolina School of Medicine, Chapel Hill, North Carolina) for helpful discussion.
Details of Authors’ Contributions
DM and GC wrote the chapter and approved its final version.
Declaration of Interests
DM and GC have nothing to declare.
References
- Arduin M, Spagnolo B, Calo G, Guerrini R, Carra G, Fischetti C, Trapella C, Marzola E, McDonald J, Lambert DG, Regoli D, Salvadori S (2007) Synthesis and biological activity of nociceptin/orphanin FQ analogues substituted in position 7 or 11 with Calpha,alpha-dialkylated amino acids. Bioorg Med Chem 15(13):4434–4443. https://doi.org/10.1016/j.bmc.2007.04.026 CrossRefPubMedGoogle Scholar
- Barnes TA, McDonald J, Rowbotham DJ, Duarte TL, Lambert DG (2007) Effects of receptor density on Nociceptin/OrphaninFQ peptide receptor desensitisation: studies using the ecdysone inducible expression system. Naunyn Schmiedebergs Arch Pharmacol 376(3):217–225. https://doi.org/10.1007/s00210-007-0189-z CrossRefPubMedGoogle Scholar
- Berger H, Calo G, Albrecht E, Guerrini R, Bienert M (2000) [Nphe(1)]NC(1-13)NH(2) selectively antagonizes nociceptin/orphanin FQ-stimulated G-protein activation in rat brain. J Pharmacol Exp Ther 294(2):428–433PubMedGoogle Scholar
- Berzetei-Gurske IP, Schwartz RW, Toll L (1996) Determination of activity for nociceptin in the mouse vas deferens. Eur J Pharmacol 302(1–3):R1–R2CrossRefGoogle Scholar
- Bevan N, Scott S, Shaw PE, Lee MG, Marshall FH, Rees S (1998) Nociception activates Elk-1 and Sap1a following expression of the ORL1 receptor in Chinese hamster ovary cells. Neuroreport 9(12):2703–2708CrossRefGoogle Scholar
- Bigoni R, Calo G, Rizzi A, Guerrini R, De Risi C, Hashimoto Y, Hashiba E, Lambert DG, Regoli D (2000) In vitro characterization of J-113397, a non-peptide nociceptin/orphanin FQ receptor antagonist. Naunyn Schmiedebergs Arch Pharmacol 361(5):565–568CrossRefGoogle Scholar
- Bigoni R, Calo G, Guerrini R, Strupish JW, Rowbotham DJ, Lambert DG (2001) Effects of nociceptin and endomorphin 1 on the electrically stimulated human vas deferens. Br J Clin Pharmacol 51(4):355–358CrossRefGoogle Scholar
- Bird M, Guerrini R, Calò G, Lambert D (2018) Nociceptin/Orphanin FQ (N/OFQ) conjugated to ATTO594; a novel fluorescent probe for the NOP receptor. Br J Pharmacol 175(24):4496–4506CrossRefGoogle Scholar
- Bokoch GM, Katada T, Northup JK, Ui M, Gilman AG (1984) Purification and properties of the inhibitory guanine nucleotide-binding regulatory component of adenylate cyclase. J Biol Chem 259(6):3560–3567PubMedGoogle Scholar
- Bonacci TM, Mathews JL, Yuan C, Lehmann DM, Malik S, Wu D, Font JL, Bidlack JM, Smrcka AV (2006) Differential targeting of Gbetagamma-subunit signaling with small molecules. Science 312(5772):443–446. https://doi.org/10.1126/science.1120378 CrossRefPubMedGoogle Scholar
- Briddon SJ, Kilpatrick LE, Hill SJ (2018) Studying GPCR pharmacology in membrane microdomains: fluorescence correlation spectroscopy comes of age. Trends Pharmacol Sci 39(2):158–174. https://doi.org/10.1016/j.tips.2017.11.004 CrossRefPubMedGoogle Scholar
- Brown BL, Albano JD, Ekins RP, Sgherzi AM (1971) A simple and sensitive saturation assay method for the measurement of adenosine 3′:5′-cyclic monophosphate. Biochem J 121(3):561–562CrossRefGoogle Scholar
- Calebiro D, Sungkaworn T (2018) Single-molecule imaging of GPCR interactions. Trends Pharmacol Sci 39(2):109–122. https://doi.org/10.1016/j.tips.2017.10.010 CrossRefPubMedGoogle Scholar
- Calo G, Rizzi A, Bogoni G, Neugebauer V, Salvadori S, Guerrini R, Bianchi C, Regoli D (1996) The mouse vas deferens: a pharmacological preparation sensitive to nociceptin. Eur J Pharmacol 311(1):R3–R5CrossRefGoogle Scholar
- Calo G, Rizzi A, Bodin M, Neugebauer W, Salvadori S, Guerrini R, Bianchi C, Regoli D (1997) Pharmacological characterization of nociceptin receptor: an in vitro study. Can J Physiol Pharmacol 75(6):713–718CrossRefGoogle Scholar
- Calo G, Bigoni R, Rizzi A, Guerrini R, Salvadori S, Regoli D (2000a) Nociceptin/orphanin FQ receptor ligands. Peptides 21(7):935–947CrossRefGoogle Scholar
- Calo G, Guerrini R, Bigoni R, Rizzi A, Marzola G, Okawa H, Bianchi C, Lambert DG, Salvadori S, Regoli D (2000b) Characterization of [Nphe(1)]nociceptin(1-13)NH(2), a new selective nociceptin receptor antagonist. Br J Pharmacol 129(6):1183–1193. https://doi.org/10.1038/sj.bjp.0703169 CrossRefPubMedGoogle Scholar
- Calo G, Rizzi A, Rizzi D, Bigoni R, Guerrini R, Marzola G, Marti M, McDonald J, Morari M, Lambert DG, Salvadori S, Regoli D (2002) [Nphe1,Arg14,Lys15]nociceptin-NH2, a novel potent and selective antagonist of the nociceptin/orphanin FQ receptor. Br J Pharmacol 136(2):303–311. https://doi.org/10.1038/sj.bjp.0704706 CrossRefPubMedGoogle Scholar
- Calo’ G, Guerrini R (2013) Medicinal chemistry, pharmacology, and biological actions of peptide ligands selective for the nociceptin/orphanin FQ receptor. In: Research and Development of opioid-related ligands, ACS symposium series, vol 1131. American Chemical Society, Washington, pp 275–325. https://doi.org/10.1021/bk-2013-1131.ch015 CrossRefGoogle Scholar
- Camarda V, Fischetti C, Anzellotti N, Molinari P, Ambrosio C, Kostenis E, Regoli D, Trapella C, Guerrini R, Severo S, Calo G (2009) Pharmacological profile of NOP receptors coupled with calcium signaling via the chimeric protein G alpha qi5. Naunyn Schmiedebergs Arch Pharmacol 379(6):599–607. https://doi.org/10.1007/s00210-009-0396-x CrossRefPubMedGoogle Scholar
- Chan JS, Yung LY, Lee JW, Wu YL, Pei G, Wong YH (1998) Pertussis toxin-insensitive signaling of the ORL1 receptor: coupling to Gz and G16 proteins. J Neurochem 71(5):2203–2210CrossRefGoogle Scholar
- Chang SD, Brieaddy LE, Harvey JD, Lewin AH, Mascarella SW, Seltzman HH, Reddy PA, Decker AM, McElhinny CJ Jr, Zhong D, Peterson EE, Navarro HA, Bruchas MR, Carroll FI (2015a) Novel synthesis and pharmacological characterization of NOP receptor agonist 8-[(1S,3aS)-2,3,3a,4,5,6-hexahydro-1H-phenalen-1-yl]-1-phenyl-1,3,8-triazaspiro[4.5]decan-4-one (Ro 64-6198). ACS Chem Neurosci 6(12):1956–1964. https://doi.org/10.1021/acschemneuro.5b00208 CrossRefPubMedGoogle Scholar
- Chang SD, Mascarella SW, Spangler SM, Gurevich VV, Navarro HA, Carroll FI, Bruchas MR (2015b) Quantitative signaling and structure-activity analyses demonstrate functional selectivity at the nociceptin/orphanin FQ opioid receptor. Mol Pharmacol 88(3):502–511. https://doi.org/10.1124/mol.115.099150 CrossRefPubMedGoogle Scholar
- Charest PG, Terrillon S, Bouvier M (2005) Monitoring agonist-promoted conformational changes of beta-arrestin in living cells by intramolecular BRET. EMBO Rep 6(4):334–340. https://doi.org/10.1038/sj.embor.7400373 CrossRefPubMedGoogle Scholar
- Charlton SJ, Vauquelin G (2010) Elusive equilibrium: the challenge of interpreting receptor pharmacology using calcium assays. Br J Pharmacol 161(6):1250–1265. https://doi.org/10.1111/j.1476-5381.2010.00863.x CrossRefPubMedGoogle Scholar
- Civelli O, Reinscheid RK, Zhang Y, Wang Z, Fredriksson R, Schioth HB (2013) G protein-coupled receptor deorphanizations. Annu Rev Pharmacol Toxicol 53:127–146. https://doi.org/10.1146/annurev-pharmtox-010611-134548 CrossRefPubMedGoogle Scholar
- Conklin BR, Farfel Z, Lustig KD, Julius D, Bourne HR (1993) Substitution of three amino acids switches receptor specificity of Gq alpha to that of Gi alpha. Nature 363(6426):274–276. https://doi.org/10.1038/363274a0 CrossRefPubMedGoogle Scholar
- Connor M, Vaughan CW, Chieng B, Christie MJ (1996) Nociceptin receptor coupling to a potassium conductance in rat locus coeruleus neurones in vitro. Br J Pharmacol 119(8):1614–1618CrossRefGoogle Scholar
- Corbani M, Gonindard C, Meunier JC (2004) Ligand-regulated internalization of the opioid receptor-like 1: a confocal study. Endocrinology 145(6):2876–2885. https://doi.org/10.1210/en.2004-0062 CrossRefPubMedGoogle Scholar
- Corder G, Castro DC, Bruchas MR, Scherrer G (2018) Endogenous and exogenous opioids in pain. Annu Rev Neurosci 41:453–473. https://doi.org/10.1146/annurev-neuro-080317-061522 CrossRefPubMedPubMedCentralGoogle Scholar
- Coward P, Chan SD, Wada HG, Humphries GM, Conklin BR (1999) Chimeric G proteins allow a high-throughput signaling assay of Gi-coupled receptors. Anal Biochem 270(2):242–248. https://doi.org/10.1006/abio.1999.4061 CrossRefPubMedGoogle Scholar
- Dooley CT, Houghten RA (1996) Orphanin FQ: receptor binding and analog structure activity relationships in rat brain. Life Sci 59(1):PL23–PL29CrossRefGoogle Scholar
- Dooley CT, Houghten RA (2000) Orphanin FQ/nociceptin receptor binding studies. Peptides 21(7):949–960CrossRefGoogle Scholar
- Fang Y (2011) Label-free receptor assays. Drug Discov Today Technol 7(1):e5–e11. https://doi.org/10.1016/j.ddtec.2010.05.001 CrossRefPubMedPubMedCentralGoogle Scholar
- Ferrari F, Cerlesi MC, Malfacini D, Asth L, Gavioli EC, Journigan BV, Kamakolanu UG, Meyer ME, Yasuda D, Polgar WE, Rizzi A, Guerrini R, Ruzza C, Zaveri NT, Calo G (2016) In vitro functional characterization of novel nociceptin/orphanin FQ receptor agonists in recombinant and native preparations. Eur J Pharmacol 793:1–13. https://doi.org/10.1016/j.ejphar.2016.10.025 CrossRefPubMedPubMedCentralGoogle Scholar
- Ferrari F, Malfacini D, Journigan BV, Bird MF, Trapella C, Guerrini R, Lambert DG, Calo G, Zaveri NT (2017) In vitro pharmacological characterization of a novel unbiased NOP receptor-selective nonpeptide agonist AT-403. Pharmacol Res Perspect 5(4). https://doi.org/10.1002/prp2.333 CrossRefGoogle Scholar
- Filizola M, Devi LA (2013) Grand opening of structure-guided design for novel opioids. Trends Pharmacol Sci 34(1):6–12. https://doi.org/10.1016/j.tips.2012.10.002 CrossRefPubMedGoogle Scholar
- Fischetti C, Camarda V, Rizzi A, Pela M, Trapella C, Guerrini R, McDonald J, Lambert DG, Salvadori S, Regoli D, Calo G (2009) Pharmacological characterization of the nociceptin/orphanin FQ receptor non peptide antagonist Compound 24. Eur J Pharmacol 614(1–3):50–57. https://doi.org/10.1016/j.ejphar.2009.04.054 CrossRefPubMedGoogle Scholar
- Fukuda K, Shoda T, Morikawa H, Kato S, Mori K (1997) Activation of mitogen-activated protein kinase by the nociceptin receptor expressed in Chinese hamster ovary cells. FEBS Lett 412(2):290–294CrossRefGoogle Scholar
- Gales C, Rebois RV, Hogue M, Trieu P, Breit A, Hebert TE, Bouvier M (2005) Real-time monitoring of receptor and G-protein interactions in living cells. Nat Methods 2(3):177–184. https://doi.org/10.1038/nmeth743 CrossRefPubMedGoogle Scholar
- Garbison KE, Heinz BA, Lajiness ME, Weidner JR, Sittampalam GS (2004) Phospho-ERK assays. In: Sittampalam GS, Coussens NP, Brimacombe K et al (eds) Assay guidance manual. National Institutes of Health, BethesdaGoogle Scholar
- Giuliani S, Maggi CA (1996) Inhibition of tachykinin release from peripheral endings of sensory nerves by nociceptin, a novel opioid peptide. Br J Pharmacol 118(7):1567–1569CrossRefGoogle Scholar
- Giuliani S, Lecci A, Maggi CA (2000) Nociceptin and neurotransmitter release in the periphery. Peptides 21(7):977–984CrossRefGoogle Scholar
- Grundmann M (2017) Label-free dynamic mass redistribution and bio-impedance methods for drug discovery. Curr Protoc Pharmacol 77(9):1–21. https://doi.org/10.1002/cpph.24 CrossRefGoogle Scholar
- Grundmann M, Merten N, Malfacini D, Inoue A, Preis P, Simon K, Ruttiger N, Ziegler N, Benkel T, Schmitt NK, Ishida S, Muller I, Reher R, Kawakami K, Inoue A, Rick U, Kuhl T, Imhof D, Aoki J, Konig GM, Hoffmann C, Gomeza J, Wess J, Kostenis E (2018) Lack of beta-arrestin signaling in the absence of active G proteins. Nat Commun 9(1):341. https://doi.org/10.1038/s41467-017-02661-3 CrossRefPubMedPubMedCentralGoogle Scholar
- Guerrini R, Calo G, Rizzi A, Bigoni R, Bianchi C, Salvadori S, Regoli D (1998) A new selective antagonist of the nociceptin receptor. Br J Pharmacol 123(2):163–165. https://doi.org/10.1038/sj.bjp.0701640 CrossRefPubMedPubMedCentralGoogle Scholar
- Gulati S, Jin H, Masuho I, Orban T, Cai Y, Pardon E, Martemyanov KA, Kiser PD, Stewart PL, Ford CP, Steyaert J, Palczewski K (2018) Targeting G protein-coupled receptor signaling at the G protein level with a selective nanobody inhibitor. Nat Commun 9(1):1996. https://doi.org/10.1038/s41467-018-04432-0 CrossRefPubMedPubMedCentralGoogle Scholar
- Hashiba E, Harrison C, Galo G, Guerrini R, Rowbotham DJ, Smith G, Lambert DG (2001) Characterisation and comparison of novel ligands for the nociceptin/orphanin FQ receptor. Naunyn Schmiedebergs Arch Pharmacol 363(1):28–33CrossRefGoogle Scholar
- Hashimoto Y, Calo G, Guerrini R, Smith G, Lambert DG (2000) Antagonistic effects of [Nphe1]nociceptin(1-13)NH2 on nociceptin receptor mediated inhibition of cAMP formation in Chinese hamster ovary cells stably expressing the recombinant human nociceptin receptor. Neurosci Lett 278(1–2):109–112CrossRefGoogle Scholar
- Hashimoto Y, Calo G, Guerrini R, Smith G, Lambert DG (2002) Effects of chronic nociceptin/orphanin FQ exposure on cAMP accumulation and receptor density in Chinese hamster ovary cells expressing human nociceptin/orphanin FQ receptors. Eur J Pharmacol 449(1–2):17–22CrossRefGoogle Scholar
- Hawes BE, Fried S, Yao X, Weig B, Graziano MP (1998) Nociceptin (ORL-1) and mu-opioid receptors mediate mitogen-activated protein kinase activation in CHO cells through a Gi-coupled signaling pathway: evidence for distinct mechanisms of agonist-mediated desensitization. J Neurochem 71(3):1024–1033CrossRefGoogle Scholar
- Hillger JM, Lieuw WL, Heitman LH, AP IJ (2017) Label-free technology and patient cells: from early drug development to precision medicine. Drug Discov Today 22(12):1808–1815. https://doi.org/10.1016/j.drudis.2017.07.015 CrossRefPubMedGoogle Scholar
- Hirao A, Imai A, Sugie Y, Yamada Y, Hayashi S, Toide K (2008) Pharmacological characterization of the newly synthesized nociceptin/orphanin FQ-receptor agonist 1-[1-(1-methylcyclooctyl)-4-piperidinyl]-2-[(3R)-3-piperidinyl]-1H-benzimidazole as an anxiolytic agent. J Pharmacol Sci 106(3):361–368CrossRefGoogle Scholar
- Ikeda K, Kobayashi K, Kobayashi T, Ichikawa T, Kumanishi T, Kishida H, Yano R, Manabe T (1997) Functional coupling of the nociceptin/orphanin FQ receptor with the G-protein-activated K+ (GIRK) channel. Brain Res Mol Brain Res 45(1):117–126CrossRefGoogle Scholar
- Johnson GL, Lapadat R (2002) Mitogen-activated protein kinase pathways mediated by ERK, JNK, and p38 protein kinases. Science 298(5600):1911–1912. https://doi.org/10.1126/science.1072682 CrossRefPubMedGoogle Scholar
- Kam KW, New DC, Wong YH (2002) Constitutive activation of the opioid receptor-like (ORL1) receptor by mutation of Asn133 to tryptophan in the third transmembrane region. J Neurochem 83(6):1461–1470CrossRefGoogle Scholar
- Katritch V, Fenalti G, Abola EE, Roth BL, Cherezov V, Stevens RC (2014) Allosteric sodium in class A GPCR signaling. Trends Biochem Sci 39(5):233–244. https://doi.org/10.1016/j.tibs.2014.03.002 CrossRefPubMedPubMedCentralGoogle Scholar
- Kenakin TP (2014a) Chapter 4 - Pharmacological assay formats: binding. In: Kenakin TP (ed) A pharmacology primer, 4th edn. Academic Press, San Diego, pp 63–83. https://doi.org/10.1016/B978-0-12-407663-1.00004-1 CrossRefGoogle Scholar
- Kenakin TP (2014b) Chapter 5 - Agonists: the measurement of affinity and efficacy in functional assays. In: Kenakin TP (ed) A pharmacology primer, 4th edn. Academic Press, San Diego, pp 85–117. https://doi.org/10.1016/B978-0-12-407663-1.00005-3 CrossRefGoogle Scholar
- Lambert DG (2008) The nociceptin/orphanin FQ receptor: a target with broad therapeutic potential. Nat Rev Drug Discov 7(8):694–710. https://doi.org/10.1038/nrd2572 CrossRefPubMedPubMedCentralGoogle Scholar
- Lee MY, Mun J, Lee JH, Lee S, Lee BH, Oh KS (2014) A comparison of assay performance between the calcium mobilization and the dynamic mass redistribution technologies for the human urotensin receptor. Assay Drug Dev Technol 12(6):361–368. https://doi.org/10.1089/adt.2014.590 CrossRefPubMedPubMedCentralGoogle Scholar
- Liao YY, Lee CW, Ho IK, Chiou LC (2012) Quantitative study of [Tyr10]nociceptin/orphanin FQ (1-11) at NOP receptors in rat periaqueductal gray and expressed NOP receptors in HEK293 cells. Life Sci 90(7–8):306–312. https://doi.org/10.1016/j.lfs.2011.12.004 CrossRefPubMedGoogle Scholar
- Liu JJ, Sharma K, Zangrandi L, Chen C, Humphrey SJ, Chiu YT, Spetea M, Liu-Chen LY, Schwarzer C, Mann M (2018) In vivo brain GPCR signaling elucidated by phosphoproteomics. Science 360(6395). https://doi.org/10.1126/science.aao4927 CrossRefGoogle Scholar
- Lou LG, Ma L, Pei G (1997) Nociceptin/orphanin FQ activates protein kinase C, and this effect is mediated through phospholipase C/Ca2+ pathway. Biochem Biophys Res Commun 240(2):304–308. https://doi.org/10.1006/bbrc.1997.7654 CrossRefPubMedGoogle Scholar
- Lowry WE, Huang J, Ma YC, Ali S, Wang D, Williams DM, Okada M, Cole PA, Huang XY (2002) Csk, a critical link of g protein signals to actin cytoskeletal reorganization. Dev Cell 2(6):733–744CrossRefGoogle Scholar
- Lundstrom K (2017) Cell-impedance-based label-free technology for the identification of new drugs. Expert Opin Drug Discovery 12(4):335–343. https://doi.org/10.1080/17460441.2017.1297419 CrossRefGoogle Scholar
- Mahmoud S, Margas W, Trapella C, Calo G, Ruiz-Velasco V (2010) Modulation of silent and constitutively active nociceptin/orphanin FQ receptors by potent receptor antagonists and Na+ ions in rat sympathetic neurons. Mol Pharmacol 77(5):804–817. https://doi.org/10.1124/mol.109.062208 CrossRefPubMedPubMedCentralGoogle Scholar
- Mahmoud S, Yun JK, Ruiz-Velasco V (2012) Gbeta2 and Gbeta4 participate in the opioid and adrenergic receptor-mediated Ca2+ channel modulation in rat sympathetic neurons. J Physiol 590(19):4673–4689. https://doi.org/10.1113/jphysiol.2012.237644 CrossRefPubMedPubMedCentralGoogle Scholar
- Mahmoud S, Farrag M, Ruiz-Velasco V (2016) Ggamma7 proteins contribute to coupling of nociceptin/orphanin FQ peptide (NOP) opioid receptors and voltage-gated Ca(2+) channels in rat stellate ganglion neurons. Neurosci Lett 627:77–83. https://doi.org/10.1016/j.neulet.2016.05.055 CrossRefPubMedPubMedCentralGoogle Scholar
- Malfacini D, Ambrosio C, Gro MC, Sbraccia M, Trapella C, Guerrini R, Bonora M, Pinton P, Costa T, Calo G (2015) Pharmacological profile of nociceptin/orphanin FQ receptors interacting with G-proteins and beta-arrestins 2. PLoS One 10(8):e0132865. https://doi.org/10.1371/journal.pone.0132865 CrossRefPubMedPubMedCentralGoogle Scholar
- Malfacini D, Simon K, Trapella C, Guerrini R, Zaveri NT, Kostenis E, Calo G (2018) NOP receptor pharmacological profile – a dynamic mass redistribution study. PLoS One 13(8):e0203021. https://doi.org/10.1371/journal.pone.0203021 CrossRefPubMedPubMedCentralGoogle Scholar
- McDonald J, Lambert DG (2010) Binding of GTPgamma[35S] is regulated by GDP and receptor activation. Studies with the nociceptin/orphanin FQ receptor. Br J Pharmacol 159(6):1286–1293. https://doi.org/10.1111/j.1476-5381.2009.00621.x CrossRefPubMedPubMedCentralGoogle Scholar
- McDonald J, Barnes TA, Okawa H, Williams J, Calo G, Rowbotham DJ, Lambert DG (2003a) Partial agonist behaviour depends upon the level of nociceptin/orphanin FQ receptor expression: studies using the ecdysone-inducible mammalian expression system. Br J Pharmacol 140(1):61–70. https://doi.org/10.1038/sj.bjp.0705401 CrossRefPubMedPubMedCentralGoogle Scholar
- McDonald J, Calo G, Guerrini R, Lambert DG (2003b) UFP-101, a high affinity antagonist for the nociceptin/orphanin FQ receptor: radioligand and GTPgamma(35)S binding studies. Naunyn Schmiedebergs Arch Pharmacol 367(2):183–187. https://doi.org/10.1007/s00210-002-0661-8 CrossRefPubMedGoogle Scholar
- Meunier JC, Mollereau C, Toll L, Suaudeau C, Moisand C, Alvinerie P, Butour JL, Guillemot JC, Ferrara P, Monsarrat B et al (1995) Isolation and structure of the endogenous agonist of opioid receptor-like ORL1 receptor. Nature 377(6549):532–535. https://doi.org/10.1038/377532a0 CrossRefGoogle Scholar
- Miller RL, Thompson AA, Trapella C, Guerrini R, Malfacini D, Patel N, Han GW, Cherezov V, Calo G, Katritch V, Stevens RC (2015) The importance of ligand-receptor conformational pairs in stabilization: spotlight on the N/OFQ G protein-coupled receptor. Structure 23(12):2291–2299. https://doi.org/10.1016/j.str.2015.07.024 CrossRefPubMedPubMedCentralGoogle Scholar
- Miyakawa K, Uchida A, Shiraki T, Teshima K, Takeshima H, Shibata S (2007) ORL1 receptor-mediated down-regulation of mPER2 in the suprachiasmatic nucleus accelerates re-entrainment of the circadian clock following a shift in the environmental light/dark cycle. Neuropharmacology 52(3):1055–1064. https://doi.org/10.1016/j.neuropharm.2006.11.003 CrossRefPubMedGoogle Scholar
- Mollereau C, Moisand C, Butour JL, Parmentier M, Meunier JC (1996) Replacement of Gln280 by his in TM6 of the human ORL1 receptor increases affinity but reduces intrinsic activity of opioids. FEBS Lett 395(1):17–21CrossRefGoogle Scholar
- Mouledous L, Topham CM, Moisand C, Mollereau C, Meunier JC (2000) Functional inactivation of the nociceptin receptor by alanine substitution of glutamine 286 at the C terminus of transmembrane segment VI: evidence from a site-directed mutagenesis study of the ORL1 receptor transmembrane-binding domain. Mol Pharmacol 57(3):495–502CrossRefGoogle Scholar
- Musheshe N, Schmidt M, Zaccolo M (2018) cAMP: from long-range second messenger to nanodomain signalling. Trends Pharmacol Sci 39(2):209–222. https://doi.org/10.1016/j.tips.2017.11.006 CrossRefPubMedGoogle Scholar
- Okawa H, Nicol B, Bigoni R, Hirst RA, Calo G, Guerrini R, Rowbotham DJ, Smart D, McKnight AT, Lambert DG (1999) Comparison of the effects of [Phe1psi(CH2-NH)Gly2]nociceptin(1-13)NH2 in rat brain, rat vas deferens and CHO cells expressing recombinant human nociceptin receptors. Br J Pharmacol 127(1):123–130. https://doi.org/10.1038/sj.bjp.0702539 CrossRefPubMedGoogle Scholar
- Onaran HO, Ambrosio C, Ugur O, Madaras Koncz E, Gro MC, Vezzi V, Rajagopal S, Costa T (2017) Systematic errors in detecting biased agonism: analysis of current methods and development of a new model-free approach. Sci Rep 7:44247. https://doi.org/10.1038/srep44247 CrossRefPubMedGoogle Scholar
- Ozawa A, Brunori G, Mercatelli D, Wu J, Cippitelli A, Zou B, Xie XS, Williams M, Zaveri NT, Low S, Scherrer G, Kieffer BL, Toll L (2015) Knock-in mice with NOP-eGFP receptors identify receptor cellular and regional localization. J Neurosci Off J Soc Neurosci 35(33):11682–11693. https://doi.org/10.1523/JNEUROSCI.5122-14.2015 CrossRefGoogle Scholar
- Peters MF, Knappenberger KS, Wilkins D, Sygowski LA, Lazor LA, Liu J, Scott CW (2007) Evaluation of cellular dielectric spectroscopy, a whole-cell, label-free technology for drug discovery on Gi-coupled GPCRs. J Biomol Screen 12(3):312–319. https://doi.org/10.1177/1087057106298637 CrossRefPubMedGoogle Scholar
- Pheng LH, Regoli D (1998) Bioassays for NPY receptors: old and new. Regul Pept 75-76:79–87CrossRefGoogle Scholar
- Rajagopal S, Ahn S, Rominger DH, Gowen-MacDonald W, Lam CM, Dewire SM, Violin JD, Lefkowitz RJ (2011) Quantifying ligand bias at seven-transmembrane receptors. Mol Pharmacol 80(3):367–377. https://doi.org/10.1124/mol.111.072801 CrossRefPubMedPubMedCentralGoogle Scholar
- Reinscheid RK, Nothacker HP, Bourson A, Ardati A, Henningsen RA, Bunzow JR, Grandy DK, Langen H, Monsma FJ Jr, Civelli O (1995) Orphanin FQ: a neuropeptide that activates an opioidlike G protein-coupled receptor. Science 270(5237):792–794CrossRefGoogle Scholar
- Reinscheid RK, Ardati A, Monsma FJ Jr, Civelli O (1996) Structure-activity relationship studies on the novel neuropeptide orphanin FQ. J Biol Chem 271(24):14163–14168CrossRefGoogle Scholar
- Rinken A, Lavogina D, Kopanchuk S (2018) Assays with detection of fluorescence anisotropy: challenges and possibilities for characterizing ligand binding to GPCRs. Trends Pharmacol Sci 39(2):187–199. https://doi.org/10.1016/j.tips.2017.10.004 CrossRefPubMedGoogle Scholar
- Rizzi D, Bigoni R, Rizzi A, Jenck F, Wichmann J, Guerrini R, Regoli D, Calo G (2001) Effects of Ro 64-6198 in nociceptin/orphanin FQ-sensitive isolated tissues. Naunyn Schmiedebergs Arch Pharmacol 363(5):551–555CrossRefGoogle Scholar
- Rizzi A, Rizzi D, Marzola G, Regoli D, Larsen BD, Petersen JS, Calo G (2002) Pharmacological characterization of the novel nociceptin/orphanin FQ receptor ligand, ZP120: in vitro and in vivo studies in mice. Br J Pharmacol 137(3):369–374. https://doi.org/10.1038/sj.bjp.0704894 CrossRefPubMedGoogle Scholar
- Rizzi A, Spagnolo B, Wainford RD, Fischetti C, Guerrini R, Marzola G, Baldisserotto A, Salvadori S, Regoli D, Kapusta DR, Calo G (2007) In vitro and in vivo studies on UFP-112, a novel potent and long lasting agonist selective for the nociceptin/orphanin FQ receptor. Peptides 28(6):1240–1251. https://doi.org/10.1016/j.peptides.2007.04.020 CrossRefPubMedGoogle Scholar
- Rizzi A, Malfacini D, Cerlesi MC, Ruzza C, Marzola E, Bird MF, Rowbotham DJ, Salvadori S, Guerrini R, Lambert DG, Calo G (2014) In vitro and in vivo pharmacological characterization of nociceptin/orphanin FQ tetrabranched derivatives. Br J Pharmacol 171(17):4138–4153. https://doi.org/10.1111/bph.12799 CrossRefPubMedGoogle Scholar
- Rizzi A, Cerlesi MC, Ruzza C, Malfacini D, Ferrari F, Bianco S, Costa T, Guerrini R, Trapella C, Calo G (2016) Pharmacological characterization of cebranopadol a novel analgesic acting as mixed nociceptin/orphanin FQ and opioid receptor agonist. Pharmacol Res Perspect 4(4):e00247. https://doi.org/10.1002/prp2.247 CrossRefPubMedGoogle Scholar
- Schrage R, Schmitz AL, Gaffal E, Annala S, Kehraus S, Wenzel D, Bullesbach KM, Bald T, Inoue A, Shinjo Y, Galandrin S, Shridhar N, Hesse M, Grundmann M, Merten N, Charpentier TH, Martz M, Butcher AJ, Slodczyk T, Armando S, Effern M, Namkung Y, Jenkins L, Horn V, Stossel A, Dargatz H, Tietze D, Imhof D, Gales C, Drewke C, Muller CE, Holzel M, Milligan G, Tobin AB, Gomeza J, Dohlman HG, Sondek J, Harden TK, Bouvier M, Laporte SA, Aoki J, Fleischmann BK, Mohr K, Konig GM, Tuting T, Kostenis E (2015) The experimental power of FR900359 to study Gq-regulated biological processes. Nat Commun 6:10156. https://doi.org/10.1038/ncomms10156 CrossRefPubMedGoogle Scholar
- Schroder R, Janssen N, Schmidt J, Kebig A, Merten N, Hennen S, Muller A, Blattermann S, Mohr-Andra M, Zahn S, Wenzel J, Smith NJ, Gomeza J, Drewke C, Milligan G, Mohr K, Kostenis E (2010) Deconvolution of complex G protein-coupled receptor signaling in live cells using dynamic mass redistribution measurements. Nat Biotechnol 28(9):943–949. https://doi.org/10.1038/nbt.1671 CrossRefPubMedGoogle Scholar
- Schroder R, Schmidt J, Blattermann S, Peters L, Janssen N, Grundmann M, Seemann W, Kaufel D, Merten N, Drewke C, Gomeza J, Milligan G, Mohr K, Kostenis E (2011) Applying label-free dynamic mass redistribution technology to frame signaling of G protein-coupled receptors noninvasively in living cells. Nat Protoc 6(11):1748–1760. https://doi.org/10.1038/nprot.2011.386 CrossRefPubMedGoogle Scholar
- Scott CW, Peters MF (2010) Label-free whole-cell assays: expanding the scope of GPCR screening. Drug Discov Today 15(17–18):704–716. https://doi.org/10.1016/j.drudis.2010.06.008 CrossRefPubMedGoogle Scholar
- Shenoy SK, Drake MT, Nelson CD, Houtz DA, Xiao K, Madabushi S, Reiter E, Premont RT, Lichtarge O, Lefkowitz RJ (2006) Beta-arrestin-dependent, G protein-independent ERK1/2 activation by the beta2 adrenergic receptor. J Biol Chem 281(2):1261–1273. https://doi.org/10.1074/jbc.M506576200 CrossRefPubMedGoogle Scholar
- Sim LJ, Xiao R, Childers SR (1996) Identification of opioid receptor-like (ORL1) peptide-stimulated [35S]GTP gamma S binding in rat brain. Neuroreport 7(3):729–733CrossRefGoogle Scholar
- Spagnolo B, Carra G, Fantin M, Fischetti C, Hebbes C, McDonald J, Barnes TA, Rizzi A, Trapella C, Fanton G, Morari M, Lambert DG, Regoli D, Calo G (2007) Pharmacological characterization of the nociceptin/orphanin FQ receptor antagonist SB-612111 [(−)-cis-1-methyl-7-[[4-(2,6-dichlorophenyl)piperidin-1-yl]methyl]-6,7,8,9-tetrah ydro-5H-benzocyclohepten-5-ol]: in vitro studies. J Pharmacol Exp Ther 321(3):961–967. https://doi.org/10.1124/jpet.106.116764 CrossRefPubMedGoogle Scholar
- Spampinato S, Baiula M (2006) Agonist-regulated endocytosis and desensitization of the human nociceptin receptor. Neuroreport 17(2):173–177CrossRefGoogle Scholar
- Spampinato S, Di Toro R, Qasem AR (2001) Nociceptin-induced internalization of the ORL1 receptor in human neuroblastoma cells. Neuroreport 12(14):3159–3163CrossRefGoogle Scholar
- Spampinato S, Di Toro R, Alessandri M, Murari G (2002) Agonist-induced internalization and desensitization of the human nociceptin receptor expressed in CHO cells. Cell Mol Life Sci 59(12):2172–2183CrossRefGoogle Scholar
- Spampinato S, Baiula M, Calienni M (2007) Agonist-regulated internalization and desensitization of the human nociceptin receptor expressed in CHO cells. Curr Drug Targets 8(1):137–146CrossRefGoogle Scholar
- Strasser A, Wittmann HJ, Seifert R (2017) Binding kinetics and pathways of ligands to GPCRs. Trends Pharmacol Sci 38(8):717–732. https://doi.org/10.1016/j.tips.2017.05.005 CrossRefPubMedGoogle Scholar
- Thompson AA, Liu W, Chun E, Katritch V, Wu H, Vardy E, Huang XP, Trapella C, Guerrini R, Calo G, Roth BL, Cherezov V, Stevens RC (2012) Structure of the nociceptin/orphanin FQ receptor in complex with a peptide mimetic. Nature 485(7398):395–399. https://doi.org/10.1038/nature11085 CrossRefPubMedPubMedCentralGoogle Scholar
- Toll L, Bruchas MR, Calo G, Cox BM, Zaveri NT (2016) Nociceptin/orphanin FQ receptor structure, signaling, ligands, functions, and interactions with opioid systems. Pharmacol Rev 68(2):419–457. https://doi.org/10.1124/pr.114.009209 CrossRefPubMedPubMedCentralGoogle Scholar
- Trapella C, Guerrini R, Piccagli L, Calo G, Carra G, Spagnolo B, Rubini S, Fanton G, Hebbes C, McDonald J, Lambert DG, Regoli D, Salvadori S (2006) Identification of an achiral analogue of J-113397 as potent nociceptin/orphanin FQ receptor antagonist. Bioorg Med Chem 14(3):692–704. https://doi.org/10.1016/j.bmc.2005.08.049 CrossRefPubMedGoogle Scholar
- Trombella S, Vergura R, Falzarano S, Guerrini R, Calo G, Spisani S (2005) Nociceptin/orphanin FQ stimulates human monocyte chemotaxis via NOP receptor activation. Peptides 26(8):1497–1502. https://doi.org/10.1016/j.peptides.2005.03.015 CrossRefPubMedGoogle Scholar
- Vezzi V, Onaran HO, Molinari P, Guerrini R, Balboni G, Calo G, Costa T (2013) Ligands raise the constraint that limits constitutive activation in G protein-coupled opioid receptors. J Biol Chem 288(33):23964–23978. https://doi.org/10.1074/jbc.M113.474452 CrossRefPubMedPubMedCentralGoogle Scholar
- Wang T, Li Z, Cvijic ME, Zhang L, Sum CS (2004) Measurement of cAMP for galphas- and galphai protein-coupled receptors (GPCRs). In: Sittampalam GS, Coussens NP, Brimacombe K et al (eds) Assay guidance manual, vol 11(5). National Institutes of Health, Bethesda, pp 461–470Google Scholar
- Wang HL, Kuo YL, Hsu CY, Huang PC, Li AH, Chou AH, Yeh TH, Chen YL (2006) Two C-terminal amino acids, Ser(334) and Ser(335), are required for homologous desensitization and agonist-induced phosphorylation of opioid receptor-like 1 receptors. Cell Signal 18(5):670–678. https://doi.org/10.1016/j.cellsig.2005.06.009 CrossRefPubMedGoogle Scholar
- Wnendt S, Kruger T, Janocha E, Hildebrandt D, Englberger W (1999) Agonistic effect of buprenorphine in a nociceptin/OFQ receptor-triggered reporter gene assay. Mol Pharmacol 56(2):334–338CrossRefGoogle Scholar
- Wright KE, McDonald J, Barnes TA, Rowbotham DJ, Guerrini R, Calo G, Lambert DG (2003) Assessment of the activity of a novel nociceptin/orphanin FQ analogue at recombinant human nociceptin/orphanin FQ receptors expressed in Chinese hamster ovary cells. Neurosci Lett 346(3):145–148CrossRefGoogle Scholar
- Wu YL, Pu L, Ling K, Zhao J, Cheng ZJ, Ma L, Pei G (1997) Molecular characterization and functional expression of opioid receptor-like1 receptor. Cell Res 7(1):69–77. https://doi.org/10.1038/cr.1997.8 CrossRefPubMedGoogle Scholar
- Yang Z, Yang F, Zhang D, Liu Z, Lin A, Liu C, Xiao P, Yu X, Sun JP (2017) Phosphorylation of G protein-coupled receptors: from the barcode hypothesis to the flute model. Mol Pharmacol 92(3):201–210. https://doi.org/10.1124/mol.116.107839 CrossRefPubMedGoogle Scholar
- Yung LY, Joshi SA, Chan RY, Chan JS, Pei G, Wong YH (1999) GalphaL1 (Galpha14) couples the opioid receptor-like1 receptor to stimulation of phospholipase C. J Pharmacol Exp Ther 288(1):232–238PubMedGoogle Scholar
- Zhang G, Murray TF, Grandy DK (1997) Orphanin FQ has an inhibitory effect on the guinea pig ileum and the mouse vas deferens. Brain Res 772(1–2):102–106CrossRefGoogle Scholar
- Zhang NR, Planer W, Siuda ER, Zhao HC, Stickler L, Chang SD, Baird MA, Cao YQ, Bruchas MR (2012) Serine 363 is required for nociceptin/orphanin FQ opioid receptor (NOPR) desensitization, internalization, and arrestin signaling. J Biol Chem 287(50):42019–42030. https://doi.org/10.1074/jbc.M112.405696 CrossRefPubMedGoogle Scholar