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Ro60-0175 Sale

目录号 : GC64606

A 5-HT2 receptor agonist

Ro60-0175 Chemical Structure

Cas No.:169675-08-5

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5 mg
¥2,880.00
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10 mg
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25 mg
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产品描述

Ro 60-0175 is an agonist of the serotonin (5-HT) receptor subtype 5-HT2 that stimulates increases in intracellular calcium levels in CHO-K1 cells expressing human 5-HT2A, 5-HT2B, and 5-HT2C receptors (EC50s = 447, 0.9, and 32 nM, respectively).1 It is selective for human 5-HT2A and 5-HT2C (Kis = 32 and 1 nM, respectively) over human 5-HT1A, 5-HT1D, 5-HT6, and 5-HT7, rat 5-HT1B and 5-HT3, and guinea pig 5-HT4 receptors (Kis = ≥1,995 nM), as well as adenosine A1 and A2, histamine H1-3, dopamine D1-5, α1-, α2-, and β1-adrenergic, M1-5 muscarinic, nicotinic, kainate, AMPA, and μ-, δ-, and κ-opioid receptors (IC50s = >1,000 nM), but does bind to β2-adrenergic receptors (IC50 = 251 nM). 2 In vivo, Ro 60-0175 increases plasma levels of corticosterone, oxytocin, and prolactin in rats (ED50s = 2.43, 4.19, and 4.03 mg/kg, respectively), effects that are not inhibited by the 5-HT2C antagonist SB-242084 or the 5-HT2A antagonist MDL 100,907 .3

1.Porter, R.H.P., Benwell, K.R., Lamb, H., et al.Functional characterization of agonists at recombinant human 5-HT2A, 5-HT2B and 5-HT2C receptors in CHO-K1 cellsBr. J. Pharmacol.128(1)13-20(1999) 2.Martin, J.R., B?s, M., Jenck, F., et al.5-HT2C receptor agonists: Pharmacological characteristics and therapeutic potentialJ. Pharmacol. Exp. Ther.286(2)913-924(1998) 3.Damjanoska, K.J., Muma, N.A., Zhang, Y., et al.Neuroendocrine evidence that (S)-2-(chloro-5-fluoro-indol-l-yl)-1-methylethylamine fumarate (Ro 60-0175) is not a selective 5-hydroxytryptamine2C receptor agonistJ. Pharmacol. Exp. Ther.304(3)1209-1216(2003)

Chemical Properties

Cas No. 169675-08-5 SDF Download SDF
分子式 C11H12ClFN2 分子量 226.68
溶解度 DMSO : 125 mg/mL (551.44 mM; Need ultrasonic) 储存条件 4°C, protect from light
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1 mM 4.4115 mL 22.0575 mL 44.1151 mL
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Research Update

The 5-HT2C receptor agonist Ro60-0175 reduces cocaine self-administration and reinstatement induced by the stressor yohimbine, and contextual cues

Neuropsychopharmacology 2008 May;33(6):1402-12.PMID:17653111DOI:10.1038/sj.npp.1301509.

Previously, we showed that the 5-HT2C receptor agonist Ro60-0175 reduces cocaine self-administration, and the ability of cocaine to reinstate responding after extinction of drug-seeking behavior. The present experiments extended these findings further by determining whether the effects of Ro60-0175 on self-administration were sustained with repeated treatment, and whether Ro60-0175 altered reinstatement induced by the pharmacological stressor yohimbine, or by the context in which self-administration occurred. In Experiment 1, Ro60-0175 (1 mg/kg, s.c.) reduced cocaine (0.25 mg/infusion) self-administration maintained by a progressive ratio schedule. This reduction was sustained over eight daily injections. In Experiment 2, rats self-administered cocaine in daily 2 h sessions for 15 days on a FR1 schedule. Following extinction, yohimbine (1 mg/kg, i.p.) reinstated responding, and this effect was reduced dose dependently by Ro60-0175 (0.3-3 mg/kg, s.c.). In Experiment 3, rats were trained to respond for cocaine on a FR1 schedule in a distinct environmental context (A); responding was then extinguished in a different context (B). Reinstatement tests occurred in either context A or B. Responding was reinstated only when rats were tested in the original self-administration context (A). This reinstatement was reduced dose dependently by Ro60-0175. All effects of Ro60-0175 were blocked by the 5-HT2C receptor antagonist SB242084. Thus, Ro60-0175, acting via 5-HT2C receptors, reduces cocaine self-administration and cocaine-seeking triggered by a stressor and by drug-associated cues. The effects of Ro60-0175 do not exhibit tolerance within the 8-day test period. These results indicate that selective 5-HT2C receptor agonists may be a useful pharmacological strategy for treatment of drug abuse.

Effects of the 5-HT2C receptor agonist Ro60-0175 and the 5-HT2A receptor antagonist M100907 on nicotine self-administration and reinstatement

Neuropharmacology 2012 Jun;62(7):2288-98.PMID:22342986DOI:10.1016/j.neuropharm.2012.01.023.

The reinforcing effects of nicotine are mediated in part by brain dopamine systems. Serotonin, acting via 5-HT(2A) and 5-HT(2C) receptors, modulates dopamine function. In these experiments we examined the effects of the 5-HT(2C) receptor agonist Ro60-0175 and the 5-HT(2A) receptor antagonist (M100907, volinanserin) on nicotine self-administration and reinstatement of nicotine-seeking. Male Long-Evans rats self-administered nicotine (0.03 mg/kg/infusion, IV) on either a FR5 or a progressive ratio schedule of reinforcement. Ro60-0175 reduced responding for nicotine on both schedules. While Ro60-0175 also reduced responding for food reinforcement, response rates under drug treatment were several-fold higher than in animals responding for nicotine. M100907 did not alter responding for nicotine, or food, on either schedule. In tests of reinstatement of nicotine-seeking, rats were first trained to lever press for IV infusions of nicotine; each infusion was also accompanied by a compound cue consisting of a light and tone. This response was then extinguished over multiple sessions. Injecting rats with a nicotine prime (0.15 mg/kg) reinstated responding; reinstatement was also observed when responses were accompanied by the nicotine associated cue. Ro60-0175 attenuated reinstatement of responding induced by nicotine and by the cue. The effects of Ro60-0175 on both forms of reinstatement were blocked by the 5-HT(2C) receptor antagonist SB242084. M100907 also reduced reinstatement induced by either the nicotine prime or by the nicotine associated cue. The results indicate that 5-HT(2C) and 5-HT(2A) receptors may be potential targets for therapies to treat some aspects of nicotine dependence.

Effect of coadministration of the GABAB agonist baclofen and the 5-HT2C agonist Ro60-0175 on the expression of amphetamine-induced locomotor sensitization

Exp Brain Res 2019 Jul;237(7):1691-1697.PMID:30989246DOI:10.1007/s00221-019-05540-z.

GABAB and 5-HT2C agonists are effective in attenuating the behavioral effects of psychostimulants. However, they induce adverse side effects when used in high doses. The previous evidence has suggested that the 5HT2C receptor activation effect could be produced by an increased release of GABA in the ventral tegmental area (VTA) and the consequent activation of GABAergic receptors. Therefore, the objective of this study was to evaluate the effects of joint administration of an intermediate dose of the GABAB agonist baclofen (3.0 mg/kg) with different doses of the 5HT2C agonist Ro60-0175 (0.3, 1.0, and 3.0 mg/kg) on the locomotor sensitization expression induced by the repeated administration of amphetamine (1.0 mg/kg). Our results showed an attenuation of the expression of sensitization in a dose-dependent manner with both agonists. In both cases, we observed a complete blockade at the highest dose. In addition, the intermediate dose of baclofen increased the effects of the three doses of Ro60-0175. These results support the role of the joint action of GABAB and 5-HT2C receptors in the effects of psychostimulants. However, it remains to be explored whether the observed effect can be attributed to receptors located in the VTA or the nucleus accumbens.

Injection of the 5-HT2C receptor agonist Ro60-0175 into the ventral tegmental area reduces cocaine-induced locomotor activity and cocaine self-administration

Neuropsychopharmacology 2004 Feb;29(2):308-18.PMID:14666118DOI:10.1038/sj.npp.1300319.

Previously, we have shown that systemic administration of the 5-HT(2C) receptor agonist Ro60-0175 reduces cocaine-induced locomotor activity and cocaine self-administration. Ro60-0175 also alters the activity of midbrain dopamine (DA) neurons of the ventral tegmental area (VTA), a region where 5-HT(2C) receptors are expressed. The present experiments investigated whether microinjections of Ro60-0175 into the VTA would alter the locomotor stimulant effect of cocaine and cocaine self-administration. In the tests for locomotor activity injection of 3 and 10, but not 1 microg, Ro60-0175 into the VTA reduced the locomotor stimulation resulting from injection of 10 mg/kg cocaine. In tests of cocaine self-administration, rats were trained to lever press for intravenous infusions of 0.25 mg cocaine delivered on either a fixed ratio 5 (FR5) or a progressive ratio schedule. Intra-VTA injection of Ro60-0175 at doses of 3 and 10 microg reduced responding for cocaine on both schedules without significantly altering the latency to initiate responding or the rate of responding. A subsequent experiment determined that the suppressant effect of intra-VTA Ro60-0175 (3 microg) on responding for cocaine was prevented by pretreatment with the selective 5-HT(2C) receptor antagonist SB242,084 (0.5 mg/kg). In a final experiment, intra-VTA injection of Ro60-0175 reduced responding for food reinforcement on the same progressive ratio schedule as used for cocaine self-administration. These results demonstrate that stimulation of 5-HT(2C) receptors in the VTA is sufficient to attenuate the stimulant and reinforcing effects of cocaine. These effects complement electrophysiological and neurochemical findings, and indicate that 5-HT(2C) receptors localized within the VTA modulate the activity of mesolimbic DA neurons.

Antagonizing 5-HT₂A receptors with M100907 and stimulating 5-HT₂C receptors with Ro60-0175 blocks cocaine-induced locomotion and zif268 mRNA expression in Sprague-Dawley rats

Behav Brain Res 2013 Mar 1;240:171-81.PMID:23201361DOI:10.1016/j.bbr.2012.11.030.

Serotonin (5-HT) plays a role in several psychiatric disorders including drug addiction. The 5-HT system modulates the activity of midbrain dopamine (DA) systems, and the behavioural effects of psychostimulants mediated by these systems. The direction of this modulation depends upon the 5-HT receptor subtypes involved, with 5-HT(2A) and 5-HT(2C) receptors having opposing effects. For example the 5-HT(2A) receptor antagonist M100907 and the 5-HT(2C) receptor agonist Ro60-0175 both attenuate several cocaine-induced behavioural and neurochemical effects. To investigate the possible brain regions involved in the interactions between 5-HT(2A) or 5-HT(2C) receptor ligands and cocaine-induced behaviour, we examined the effects of M100907 or Ro60-0175 on cocaine-induced locomotion and mRNA expression of the immediate early gene zif268. Sprague-Dawley rats were pre-treated with M100907 (0.5mg/kg), Ro60-0175 (1.0mg/kg) or vehicle, and then injected with cocaine (15mg/kg) or vehicle. Locomotor activity was monitored for 60 min before rats were sacrificed for zif268 mRNA in situ hybridization mapping. Cocaine increased locomotor activity and zif268 mRNA expression consistently in the nucleus accumbens core, the orbitofrontal cortex and the caudate. M100907 attenuated cocaine-induced locomotion and zif268 mRNA expression in these brain regions in a defined subset of rats but failed to alter any effects of cocaine in another defined subset of rats. Ro60-0175 blocked cocaine-induced locomotion and zif268 mRNA expression in similar brain regions. Our results suggest that despite the opposing actions of 5-HT at 5-HT(2A) and 5-HT(2C) receptors, ligands acting on these receptors likely modulate cocaine-induced locomotion via a common mechanism to influence DA-dependent circuitry.