Ro 64-6198
目录号 : GC38842
Ro 64-6198 是一种有效的，选择性的，非肽，高亲和力，高细胞通透性和脑渗透 N/OFQ 受体 (NOP) 激动剂，EC50 值为 25.6 nM。Ro 64-6198 对 NOP 受体的选择性至少是经典阿片受体的 100 倍。Ro 64-6198 可用于治疗压力和焦虑，成瘾，神经性疼痛，咳嗽和厌食症。
Cas No.:280783-56-4
Sample solution is provided at 25 µL, 10mM.
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Quality Control & SDS
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- Purity: >98.00%
- COA (Certificate Of Analysis)
- SDS (Safety Data Sheet)
- Datasheet
Ro 64-6198 is a potent, selective, nonpeptide, high-affinity, high cellular permeability and brain penetration N/OFQ receptor (NOP) agonist with an EC50 value of 25.6 nM. Ro 64-6198 is at least 100 times more selective for the NOP receptor over the classic opioid receptors. Ro 64-6198 can be used to treat stress and anxiety, addiction, neuropathic pain, cough, and anorexia[1][2].
Ro 64-6198 also produces rapid desensitization of the NOP receptor. In vitro studies shows that treatment with Ro 64-6198 results in a functional desensitization of the receptor, a loss in binding sites, and an apparent decrease in binding affinity. The desensitization produced by Ro 64-6198 is not reversed by acidic washes[1].Ro 64-6198 does recruit both arrestin3 (EC50 of 0.912 µM) and arrestin2 (EC50 of 1.20 µM) to the NOP receptor in a concentration-dependent manner comparably with N/OFQ[2].
At low doses Ro 64-6198 is anxiolytic in several neophobic tests, including the marble burying test in mice, the elevated plus maze in rats and the open field test in rats. In the marble burying test, at 1 mg/kg, i.p., Ro 64-6198 produces a decrease in the number of marbles buried, without altering locomotor activity, indicating a decrease in neophobia and anxiety. Ro 64-6198 selectively increases the number of open arm transitions and time spent in the open arms of the elevated plus maze at doses of 0.32-3 mg/kg, i.p., without affecting closed arm transitions or locomotor activity in the closed arms. In the open field test, Ro 64-6198, at doses of 0.32-3 mg/kg, attenuates the inhibition of exploration that results from the stress of a novel environment[1].
[1]. Shoblock JR. The pharmacology of Ro 64-6198, a systemically active, nonpeptide NOP receptor (opiate receptor-like 1, ORL-1) agonist with diverse preclinical therapeutic activity. CNS Drug Rev. 2007 Spring;13(1):107-36. [2]. Chang SD, et al. 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. 2015 Dec 16;6(12):1956-64.
| Cas No. | 280783-56-4 | SDF | |
| Canonical SMILES | O=C1NCN(C2=CC=CC=C2)C13CCN([C@H]4CC[C@]5([H])CCCC6=C5C4=CC=C6)CC3 | ||
| 分子式 | C26H31N3O | 分子量 | 401.54 |
| 溶解度 | DMSO : 50 mg/mL (124.52 mM; Need ultrasonic) | 储存条件 | Store at -20°C |
| General tips | 请根据产品在不同溶剂中的溶解度选择合适的溶剂配制储备液；一旦配成溶液，请分装保存，避免反复冻融造成的产品失效。 储备液的保存方式和期限：-80°C 储存时，请在 6 个月内使用，-20°C 储存时，请在 1 个月内使用。 为了提高溶解度，请将管子加热至37℃，然后在超声波浴中震荡一段时间。 |
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1 mg | 5 mg | 10 mg |
| 1 mM | 2.4904 mL | 12.4521 mL | 24.9041 mL |
| 5 mM | 0.4981 mL | 2.4904 mL | 4.9808 mL |
| 10 mM | 0.249 mL | 1.2452 mL | 2.4904 mL |
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The pharmacology of Ro 64-6198, a systemically active, nonpeptide NOP receptor (opiate receptor-like 1, ORL-1) agonist with diverse preclinical therapeutic activity
CNS Drug Rev 2007 Spring;13(1):107-36.PMID:17461893DOI:10.1111/j.1527-3458.2007.00007.x.
The NOP receptor (formerly referred to as opiate receptor-like 1, ORL-1, LC132, OP(4), or NOP(1)) is a G protein-coupled receptor that shares high homology to the classic opioid MOP, DOP, and KOP (mu, delta, and kappa, respectively) receptors and was first cloned in 1994 by several groups. The NOP receptor remained an orphan receptor until 1995, when the endogenous neuropeptide agonist, known as nociceptin or orphanin FQ (N/OFQ) was isolated. Five years later, a group at Hoffmann-La Roche reported on the selective, nonpeptide NOP agonist Ro 64-6198, which became the most extensively published nonpeptide NOP agonist and a valuable pharmacological tool in determining the potential of the NOP receptor as a therapeutic target. Ro 64-6198 is systemically active and achieves high brain penetration. It has subnanomolar affinity for the NOP receptor and is at least 100 times more selective for the NOP receptor over the classic opioid receptors. Ro 64-6198 ranges from partial to full agonist, depending on the assay. Preclinical data indicate that Ro 64-6198 may have broad clinical uses, such as in treating stress and anxiety, addiction, neuropathic pain, cough, and anorexia. This review summarizes the pharmacology and preclinical data of Ro 64-6198.
Lack of effect of the nociceptin opioid peptide agonist Ro 64-6198 on pain-depressed behavior and heroin choice in rats
Drug Alcohol Depend 2022 Feb 1;231:109255.PMID:34998256DOI:10.1016/j.drugalcdep.2021.109255.
Rationale and objective: One objective of the National Institutes of Health Helping to End Addiction Long-term (HEAL) initiative is to accelerate research on safer and more effective medications for both pain and opioid use disorder. Ligands that activate the nociceptin opioid peptide receptor (NOP) constitute one class of candidate drugs for both applications. The present preclinical study determined the effectiveness of the NOP agonist Ro 64-6198 to produce antinociception in a pain-depressed behavior procedure and attenuate opioid self-administration in a heroin-vs-food choice procedure. Methods: In Experiment 1, Adult Sprague-Dawley rats were equipped with microelectrodes and trained to respond for electrical brain stimulation in an intracranial self-stimulation (ICSS) procedure. The potency, time course, and receptor mechanism of effects produced by R0 64-6198 alone (0.32-3.2 mg/kg) on ICSS were examined, followed by evaluation of 0.32-1.0 mg/kg Ro 64-6198 effectiveness to block lactic acid-induced depression of ICSS. In Experiment 2, rats self-administered heroin under a heroin-vs-food choice procedure during a regimen of repeated, daily intraperitoneal administration of vehicle or Ro 64-6198 (1-3.2 mg/kg/day). Results: Ro 64-6198 produced dose- and time-dependent ICSS depression that was blocked by the selective NOP antagonist SB612111 but not by naltrexone. Ro 64-6198 failed to block acid-induced depression of ICSS. Repeated Ro 64-6198 pretreatment also failed to attenuate heroin-vs-food choice up to doses that significantly decreased operant behavior. Conclusions: These results do not support the utility of Ro 64-6198 as a stand-alone medication for either acute pain or opioid use disorder.
Ro 64-6198 [(1S,3aS)-8-(2,3,3a,4,5,6-Hexahydro-1H-phenalen-1-yl)-1-phenyl-1,3,8-triaza-spiro[4.5]decan-4-one] acts differently from nociceptin/orphanin FQ in rat periaqueductal gray slices
J Pharmacol Exp Ther 2004 Nov;311(2):645-51.PMID:15254141DOI:10.1124/jpet.104.070219.
Ro 64-6198 [(1S,3aS)-8-(2,3,3a,4,5,6-hexahydro-1H-phenalen-1-yl)-1-phenyl-1,3,8-triaza-spiro[4.5]decan-4-one] was developed as a nonpeptide agonist of nociceptin/orphanin FQ (N/OFQ) peptide (NOP) receptors, using bioassays at cloned receptors expressed in cell cultures. We have investigated the actions of Ro 64-6198 at native NOP receptors of the ventrolateral periaqueductal gray (PAG), a crucial site for N/OFQ-induced reversal of opioid analgesia, using the patch-clamp recording technique in rat brain slices. Ro 64-6198, like N/OFQ, activated G protein-coupled inwardly rectifying K(+) channels (GIRK) in ventrolateral PAG neurons but displayed only 60% efficacy and 22% potency of N/OFQ. Unlike N/OFQ that activated GIRK through NOP receptors in almost all tested neurons, Ro 64-6198 affected only 62% (114/185) of the neurons recorded, among which 57% were sensitive to CompB (J-113397), a selective NOP receptor antagonist. The effect of Ro 64-6198 was not affected by naloxone (1 microM), sulpiride (10 microM), and [1-(2-methoxyphenyl)-4-[4-2-phthalimido)butyl]piperazine (NAN-190) (1 microM), respectively, the antagonist of opioid, dopamine D(2), and 5-HT(1A) receptors. In Ro 64-6198-unresponsive neurons, N/OFQ activated GIRK through NOP receptors. It is concluded that Ro 64-6198 is a weak agonist of NOP receptors both in terms of potency and efficacy in ventrolateral PAG neurons. Heterogeneity of NOP receptors has been proposed from binding studies and in vivo functional studies. The possibility was discussed that two subsets of NOP receptors exist in ventrolateral PAG neurons, and Ro 64-6198 activates only one subset but N/OFQ activates both of them.
NOP Receptor Agonist Ro 64-6198 Decreases Escalation of Cocaine Self-Administration in Rats Genetically Selected for Alcohol Preference
Front Psychiatry 2019 Mar 29;10:176.PMID:30984046DOI:10.3389/fpsyt.2019.00176.
Cocaine dependence is a psychiatric condition for which effective medications are still lacking. Published data indicate that an increase in nociceptin/orphanin FQ (N/OFQ) transmission by NOP receptor activation attenuates cocaine-induced place conditioning and the locomotor sensitization effects of cocaine. This suggests that the activation of the N/OFQ receptor (NOP) may attenuate the motivation for psychostimulants. To further explore this possibility, we investigated the effect of the potent and selective NOP receptor agonist Ro 64-6198 on cocaine intake under 1 h short access (ShA) and 6 h long access (LgA) operant self-administration conditions in rats. We used Marchigian Sardinian alcohol-preferring (msP) rats and Wistar control rats. msP rats were used because we recently found that this rat line, originally selected for excessive alcohol drinking and preference, exhibits a greater propensity to escalate cocaine self-administration following LgA training. msP rats are also characterized by innate overexpression of the N/OFQ-NOP system compared with Wistar rats. Wistar and msP rats both exhibited an increase in cocaine self-administration under LgA conditions, with a higher trend toward escalation in msP rats. In Wistar rats, the intraperitoneal administration of Ro 64-6198 (0. 1 and 3 mg/kg) significantly decreased ShA cocaine self-administration. In Wistar rats that underwent LgA cocaine self-administration training, Ro 64-6198 induced no significant effect either during the first hour of self-administration or after the entire 6 h session. In msP rats, Ro 64-6198 significantly reduced cocaine self-administration both under ShA conditions and in the first hour of the LgA session. At the end of the 6 h session, the effect of Ro 64-6198 was no longer observed in msP rats. The highest dose of Ro 64-6198 (3 mg/kg) did not affect saccharin self-administration in msP rats but reduced saccharin self-administration in Wistar rats. Altogether, these data suggest that NOP receptor activation attenuates cocaine self-administration, and this effect tends to be more pronounced in a rat line with innately higher NOP receptor expression and that more robustly escalates cocaine intake.
Effects of Ro 64-6198 in nociceptin/orphanin FQ-sensitive isolated tissues
Naunyn Schmiedebergs Arch Pharmacol 2001 May;363(5):551-5.PMID:11383716DOI:10.1007/s002100100399.
The pharmacological profile of the non-peptide OP4 receptor (ORL1, LC132) agonist, Ro 64-6198, was investigated, in three electrically stimulated nociceptin/orphanin FQ (NC)-sensitive preparations, namely the mouse and rat vas deferens and the guinea pig ileum. Ro 64-6198 mimicked the inhibitory effect of NC in the three preparations, while showing slow kinetics of action and a slowly reversible effect compared to the fast and immediately and completely reversible effect of the natural peptide. Ro 64-6198 displayed similar pEC50 and Emax values as NC in the mouse and rat vas deferens while it was 100-fold less potent but more efficacious (higher Emax) than NC in the guinea pig ileum. In the rat vas deferens the effects of Ro 64-6198 were antagonised by [Nphe1]NC(1-13)NH2 and J-113397 with pKB values (6.30 and 8.05, respectively) similar to those obtained against NC (6.20 and 7.77, respectively). Naloxone (1 microM) was inactive. In the guinea pig ileum a clear shift of the concentration response curve to Ro 64-6198 was obtained only using a cocktail of antagonists (naloxone + [Nphe1]NC(1-13)NH2 or naloxone + J-113397). In the mouse vas deferens the antagonists were inactive against Ro 64-6198 either when tested alone or in combination. Therefore, Ro 64-6198 behaved as a selective OP4 receptor agonist only in the rat tissue. These results suggest a physiological heterogeneity in OP4 receptors across tissues and species and may explain why, when tested in vivo, Ro 64-6198 mimics the potent anxiolytic effect of NC better in the rat than in the mouse.