Pimozide (Synonyms: NSC 170984,Orap,R 6238)
dopamine receptors inhibitor
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Sample solution is provided at 25 µL, 10mM.
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Cell proliferation is assessed by WST-8 colorimetric assay. Human osteosarcoma cells are plated in 96-well plates with 2,500 cells per well and exposed to the treatment of different concentrations of pimozide for various time intervals (24 h, 48 h, and 72 h). The WST-8 solution is added to each well after indicated time. After incubated at 37°C for another 4 hours, the absorbance ismeasured at 450 nm using a multi-well plate reader.
. Ybema CE, et al. Adrenoceptors and dopamine receptors are not involved in the discriminative stimulus effect of the 5-HT1A receptor agonist flesinoxan. Eur J Pharmacol. 1994 Apr 21;256(2):141-7.
Pimozide is a chemically novel, highly potent and orally long-acting neuroleptic dopamine receptors inhibitor .
Dopamine receptors belong to G protein-coupled receptor containing five subtypes termed D1, D2, D3, D4, and D5. Dopamine receptors have been involved in many physiological functions of the catecholaminergic neurotransmitter dopamine, ranging from voluntary movement to hormonal regulation and hypertension. Pharmacological drugs targeting dopaminergic neurotransmission have been clinically used in several neurological and psychiatric disorders, such as schizophrenia, Parkinson's disease, Huntington's disease, bipolar disorder, attention deficit hyperactivity disorder (ADHD), and Tourette's syndrome .
In vitro: Pimozide displayed high affinity for dopamine receptors. The Ki values for D2, D3, and D4 were 2.4, 0.2, and 1.8 nM, respectively .
In vivo: In hungry rats, pimozide attenuated lever-pressing and running for food reward. Pimozide pretreatment attenuated acquisition of a lever-pressing habit motivated by food reward in a dose-dependent manner. In 31 male Wistar rats self-administering cocaine, pimozide caused a dose-dependent (0.0625–0.5 mg/kg) acceleration of responding .
Clinical trials: Pimozide was effective in treating Tourette's syndrome and positive psychotic symptoms in schizophrenia. Results from studies ranging from clinical vignettes to controlled trials indicated that pimozide also ameliorated negative schizophrenic symptoms, treated monosymptomatic delusional psychosis resistant to other neuroleptics, and treated pain syndromes .
 Janssen P A, Niemegeers C J, Schellekens K H, et al. Pimozide, a chemically novel, highly potent and orally long-acting neuroleptic drug. I. The comparative pharmacology of pimozide, haloperidol, and chlorpromazine[J]. Arzneimittel-Forschung, 1968, 18(3): 261-279.
 Beaulieu J M, Gainetdinov R R. The physiology, signaling, and pharmacology of dopamine receptors[J]. Pharmacological reviews, 2011, 63(1): 182-217.
 Burstein E S, Ma J, Wong S, et al. Intrinsic efficacy of antipsychotics at human D2, D3, and D4 dopamine receptors: identification of the clozapine metabolite N-desmethylclozapine as a D2/D3 partial agonist[J]. Journal of Pharmacology and Experimental Therapeutics, 2005, 315(3): 1278-1287.
 Wise R A, Schwartz H V. Pimozide attenuates acquisition of lever-pressing for food in rats[J]. Pharmacology Biochemistry and Behavior, 1981, 15(4): 655-656.
 De Wit H, Wise R A. Blockade of cocaine reinforcement in rats with the dopamine receptor blocker pimozide, but not with the noradrenergic blockers phentolamine or phenoxybenzamine[J]. Canadian Journal of Psychology/Revue canadienne de psychologie, 1977, 31(4): 195.
 Opler L A, Feinberg S S. The role of pimozide in clinical psychiatry: a review[J]. Journal of Clinical Psychiatry, 1991.
|Synonyms||NSC 170984,Orap,R 6238|
|Solubility||≥ 17.95mg/mL in DMSO||Storage||Store at -20°C|
|General tips||Please select the appropriate solvent to prepare the stock solution according to the solubility of the product in different solvents; once the solution is prepared, please store it in separate packages to avoid product failure caused by repeated freezing and thawing.Storage method and period of the stock solution: When stored at -80°C, please use it within 6 months; when stored at -20°C, please use it within 1 month.
To increase solubility, heat the tube to 37°C and then oscillate in an ultrasonic bath for some time.
|Shipping Condition||Evaluation sample solution: shipped with blue ice. All other sizes available: with RT, or with Blue Ice upon request.|
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