GR-55562 is a selective serotonin 5-HT1B and 5-HT1D receptor antagonist.[1] It is one of several selective serotonin 5-HT1B receptor antagonists used in scientific research.[2][3]
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Other names | GR55562; GR-55,562; GR55,562 |
Drug class | Serotonin 5-HT1B and 5-HT1D receptor antagonist; Selective serotonin 5-HT1B antagonist |
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Formula | C23H25N3O2 |
Molar mass | 375.472 g·mol−1 |
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The drug is a silent antagonist of the serotonin 5-HT1B receptor, unlike the related agent GR-127935.[1][4] GR-55562 has around 10-fold selectivity for the serotonin 5-HT1B receptor over the serotonin 5-HT1D receptor and has only weak affinity for a number of other serotonin receptors.[4]
It is ineffective in attenuating MDMA-induced prosocial behavior in animals.[5][6] Conversely, the serotonin 5-HT1A receptor antagonist WAY-100635 can abolish MDMA-induced prosocial behavior.[5][6]
See also
editReferences
edit- ^ a b Halazy S, Lamothe M, Jorand-Lebrun C (1997). "5-HT1B/1Dantagonists and depression". Expert Opinion on Therapeutic Patents. 7 (4). Informa Healthcare: 339–352. doi:10.1517/13543776.7.4.339. ISSN 1354-3776.
However, as mentioned above, it was later found that GR-127935 is not a silent antagonist at human 5- HT1B/1D sites. More recent investigations from Glaxo and others have shown that, unlike GR-127935, GR55562 could be characterised as a silent, potent and selective h5-HT1B receptor antagonist [43]. However, so far no results have been disclosed concerning the ability of this particular compound to antagonise central presynaptic 5-HT1B receptors upon systemic administration.
- ^ Alexander SP, Christopoulos A, Davenport AP, Kelly E, Mathie A, Peters JA, et al. (December 2019). "THE CONCISE GUIDE TO PHARMACOLOGY 2019/20: G protein-coupled receptors". British Journal of Pharmacology. 176 (Suppl 1): S21–S141. doi:10.1111/bph.14748. PMC 6844580. PMID 31710717.
- ^ Hannon J, Hoyer D (December 2008). "Molecular biology of 5-HT receptors". Behavioural Brain Research. 195 (1): 198–213. doi:10.1016/j.bbr.2008.03.020. PMID 18571247.
- ^ a b "GR 55562 dihydrochloride Supplier". Tocris Bioscience. Retrieved 27 October 2024.
GR 55562 dihydrochloride is a selective competitive 5-HT1B (5-HT1Dβ) silent antagonist with pKB values of 7.3 and 6.3 for human cloned 5-HT1B and 5-HT1D receptors respectively and only weak binding at a number of other 5-HT subtypes.
- ^ a b Blanco-Gandía MC, Mateos-García A, García-Pardo MP, Montagud-Romero S, Rodríguez-Arias M, Miñarro J, et al. (September 2015). "Effect of drugs of abuse on social behaviour: a review of animal models". Behavioural Pharmacology. 26 (6): 541–570. doi:10.1097/FBP.0000000000000162. PMID 26221831.
- ^ a b Morley KC, Arnold JC, McGregor IS (June 2005). "Serotonin (1A) receptor involvement in acute 3,4-methylenedioxymethamphetamine (MDMA) facilitation of social interaction in the rat". Progress in Neuro-Psychopharmacology & Biological Psychiatry. 29 (5): 648–657. doi:10.1016/j.pnpbp.2005.04.009. PMID 15908091.