There are a number of ligands selective for the D1 receptors. To date, most of the known ligands are based on dihydrexidine or the prototypical benzazepine partial agonist SKF-38393 (one derivative being the prototypical antagonist SCH-23390).[7] D1 receptor has a high degree of structural homology to another dopamine receptor, D5, and they both bind similar drugs.[8] As a result, none of the known orthosteric ligands is selective for the D1 vs. the D5 receptor, but the benzazepines generally are more selective for the D1 and D5 receptors versus the D2-like family.[7] Some of the benzazepines have high intrinsic activity whereas others do not. In 2015 the first positive allosteric modulator for the human D1 receptor was discovered by high-throughput screening.[9]
Agonists
Several D1 receptor agonists are used clinically. These include apomorphine, pergolide, rotigotine, and terguride. All of these drugs are preferentially D2-like receptor agonists. Fenoldopam is a selective D1 receptor partial agonist that does not cross the blood-brain-barrier and is used intravenously in the treatment of hypertension. Dihydrexidine and adrogolide (ABT-431) (a prodrug of A-86929 with improved bioavailability) are the only selective, centrally active D1-like receptor agonists that have been studied clinically in humans.[12] The selective D1 agonists give profound antiparkinson effects in humans and primate models of PD, and yield cognitive enhancement in many preclinical models and a few clinical trials. The most dose-limiting feature is profound hypotension, but the clinical development was impeded largely by lack of oral bioavailability and short duration of action.[12][13][14] In 2017, Pfizer made public information about pharmaceutically-acceptable non-catechol selective D1 agonists that are in clinical development.
List of D1 receptor agonists
Dihydrexidine derivatives
A-86929 - full agonist with 14-fold selectivity for D1-like receptors over D2[7][11][15]
Dihydrexidine - full agonist with 10-fold selectivity for D1-like receptors over D2 that has been in Phase IIa clinical trials as a cognitive enhancer.[16][17] It also showed profound antiparkinson effects in MPTP-treated primates,[18] but caused profound hypotension in one early clinical trial in Parkinson's disease.[7] Although dihydrexidine has significant D2 properties, it is highly biased at D2 receptors and was used for the first demonstration of functional selectivity[19] with dopamine receptors.[20][21]
Dinapsoline - full agonist with 5-fold selectivity for D1-like receptors over D2[7]
Dinoxyline - full agonist with approximately equal affinity for D1-like and D2 receptors[7]
Doxanthrine - full agonist with 168-fold selectivity for D1-like receptors over D2[7]
Benzazepine derivatives
SKF-81297 - 200-fold selectivity for D1 over any other receptor[7]
CY-208,243 - high intrinsic activity partial agonist with moderate selectivity for D1-like over D2-like receptors, member of ergoline ligand family like pergolide and bromocriptine.
SKF-89145
SKF-89626
7,8-Dihydroxy-5-phenyl-octahydrobenzo[h]isoquinoline: extremely potent, high-affinity full agonist[22]
Cabergoline - weak D1 agonism, highly selective for D2, and various serotonin receptors
Pergolide - (similar to cabergoline) weak D1 agonism, highly selective for D2, and various serotonin receptors
Antagonists
Many typical and atypical antipsychotics are D1 receptor antagonists in addition to D2 receptor antagonists. No other D1 receptor antagonists have been approved for clinical use. Ecopipam is a selective D1-like receptor antagonist that has been studied clinically in humans in the treatment of a variety of conditions, including schizophrenia, cocaine abuse, obesity, pathological gambling, and Tourette's syndrome, with efficacy in some of these conditions seen. The drug produced mild-to-moderate, reversible depression and anxiety in clinical studies however and has yet to complete development for any indication.
↑Dearry A, Gingrich JA, Falardeau P, Fremeau RT, Bates MD, Caron MG (September 1990). "Molecular cloning and expression of the gene for a human D1 dopamine receptor". Nature. 347 (6288): 72–6. doi:10.1038/347072a0. PMID2144334.
↑Zhou QY, Grandy DK, Thambi L, Kushner JA, Van Tol HH, Cone R, Pribnow D, Salon J, Bunzow JR, Civelli O (September 1990). "Cloning and expression of human and rat D1dopamine receptors". Nature. 347 (6288): 76–80. doi:10.1038/347076a0. PMID2168520.
↑Sunahara RK, Niznik HB, Weiner DM, Stormann TM, Brann MR, Kennedy JL, Gelernter JE, Rozmahel R, Yang YL, Israel Y (September 1990). "Human dopamine D1 receptor encoded by an intronless gene on chromosome 5". Nature. 347 (6288): 80–3. doi:10.1038/347080a0. PMID1975640.
↑ 4.04.1Schetz JA, Sibley DR (2007). "Chapter 7: Dopaminergic Neurotransmission". In Sibley DR. Handbook of Contemporary Neuropharmacology. Hoboken, NJ: Wiley-Interscience. p. 226. ISBN9780471660538. Localization of the D1 receptor messenger ribonucleic acid (mRNA) expression has been mapped using Northern analysis and in situ hybridization (for a review, see [54]). Expression of D1 receptor mRNA is highest in the caudate putamen, nucleus accumbens, and olfactory tubercle. Lower levels of expression are found in the basolateral amygdala, cerebral cortex, septum, thalamus, and hypothalamus.
↑Sunahara RK, Guan HC, O'Dowd BF, Seeman P, Laurier LG, Ng G, George SR, Torchia J, Van Tol HH, Niznik HB (1991). "Cloning of the gene for a human dopamine D5 receptor with higher affinity for dopamine than D1". Nature. 350 (6319): 614–9. doi:10.1038/350614a0. PMID1826762.
↑Lewis MA, Hunihan L, Watson J, Gentles RG, Hu S, Huang Y, Bronson J, Macor JE, Beno BR, Ferrante M, Hendricson A, Knox RJ, Molski TF, Kong Y, Cvijic ME, Rockwell KL, Weed MR, Cacace AM, Westphal RS, Alt A, Brown JM (2015). "Discovery of D1 Dopamine Receptor Positive Allosteric Modulators: Characterization of Pharmacology and Identification of Residues that Regulate Species Selectivity". J. Pharmacol. Exp. Ther. 354 (3): 340–9. doi:10.1124/jpet.115.224071. PMID26109678.
↑Cueva JP, Giorgioni G, Grubbs RA, Chemel BR, Watts VJ, Nichols DE (November 2006). "trans-2,3-dihydroxy-6a,7,8,12b-tetrahydro-6H-chromeno[3,4-c]isoquinoline: synthesis, resolution, and preliminary pharmacological characterization of a new dopamine D1 receptor full agonist". J. Med. Chem. 49 (23): 6848–57. doi:10.1021/jm0604979. PMID17154515.
↑ 11.011.1Michaelides MR, Hong Y, DiDomenico S, Asin KE, Britton DR, Lin CW, Williams M, Shiosaki K (1995). "(5aR,11bS)-4,5,5a,6,7,11b-hexahydro-2-propyl-3-thia-5-azacyclopent-1- ena[c]-phenanthrene-9,10-diol (A-86929): a potent and selective dopamine D1agonist that maintains behavioral efficacy following repeated administration and characterization of its diacetyl prodrug (ABT-431)". J. Med. Chem. 38 (18): 3445–7. doi:10.1021/jm00018a002. PMID7658429.
↑Blanchet PJ, Fang J, Gillespie M, Sabounjian L, Locke KW, Gammans R, Mouradian MM, Chase TN (1998). "Effects of the full dopamine D1 receptor agonist dihydrexidine in Parkinson's disease". Clin Neuropharmacol. 21 (6): 339–43. PMID9844789.
↑Giardina, William J.; Williams, Michael (2006). "Adrogolide HCl (ABT-431; DAS-431), a Prodrug of the Dopamine D1 Receptor Agonist, A-86929: Preclinical Pharmacology and Clinical Data". CNS Drug Reviews. 7 (3): 305–316. doi:10.1111/j.1527-3458.2001.tb00201.x. ISSN1080-563X. PMID11607045.
↑Yamashita M, Yamada K, Tomioka K (2004). "Construction of arene-fused-piperidine motifs by asymmetric addition of 2-trityloxymethylaryllithiums to nitroalkenes: the asymmetric synthesis of a dopamine D1 full agonist, A-86929". J. Am. Chem. Soc. 126 (7): 1954–5. doi:10.1021/ja031760n. PMID14971926.
↑Mu Q, Johnson K, Morgan PS, Grenesko EL, Molnar CE, Anderson B, Nahas Z, Kozel FA, Kose S, Knable M, Fernandes P, Nichols DE, Mailman RB, George MS (2007). "A single 20 mg dose of the full D1 dopamine agonist dihydrexidine (DAR-0100) increases prefrontal perfusion in schizophrenia". Schizophr. Res. 94 (1–3): 332–341. doi:10.1016/j.schres.2007.03.033. PMID17596915.
↑George MS, Molnar CE, Grenesko EL, Anderson B, Mu Q, Johnson K, Nahas Z, Knable M, Fernandes P, Juncos J, Huang X, Nichols DE, Mailman RB (2007). "A single 20 mg dose of dihydrexidine (DAR-0100), a full dopamine D1 agonist, is safe and tolerated in patients with schizophrenia". Schizophr. Res. 93 (1–3): 42–50. doi:10.1016/j.schres.2007.03.011. PMID17467956.
↑Taylor JR, Lawrence MS, Redmond DE, Elsworth JD, Roth RH, Nichols DE, Mailman RB (1991). "Dihydrexidine, a full dopamine D1 agonist, reduces MPTP-induced parkinsonism in monkeys". Eur J Pharmacol. 199 (3): 389–391. doi:10.1016/0014-2999(91)90508-N. PMID1680717.
↑Urban JD, Clarke WP, von Zastrow M, Nichols DE, Kobilka B, Weinstein H, Javitch JA, Roth BL, Christopoulos A, Sexton PM, Miller KJ, Spedding M, Mailman RB (January 2007). "Functional selectivity and classical concepts of quantitative pharmacology". J. Pharmacol. Exp. Ther. 320 (1): 1–13. doi:10.1124/jpet.106.104463. PMID16803859.
↑Mottola DM, Kilts JD, Lewis MM, Connery HS, Walker QD, Jones SR, Booth RG, Hyslop DK, Piercey M, Wightman RM, Lawler CP, Nichols DE, Mailman RB (June 2002). "Functional selectivity of dopamine receptor agonists. I. Selective activation of postsynaptic dopamine D2 receptors linked to adenylate cyclase". J. Pharmacol. Exp. Ther. 301 (3): 1166–78. doi:10.1124/jpet.301.3.1166. PMID12023552.
↑Kilts JD, Connery HS, Arrington EG, Lewis MM, Lawler CP, Oxford GS, O'Malley KL, Todd RD, Blake BL, Nichols DE, Mailman RB (June 2002). "Functional selectivity of dopamine receptor agonists. II. Actions of dihydrexidine in D2L receptor-transfected MN9D cells and pituitary lactotrophs". J. Pharmacol. Exp. Ther. 301 (3): 1179–89. doi:10.1124/jpet.301.3.1179. PMID12023553.
↑Bruns RF, Mitchell SN, Wafford KA, et al. (2018). "Preclinical profile of a dopamine D1 potentiator suggests therapeutic utility in neurological and psychiatric disorders". Neuropharmacology. 128: 351–365. doi:10.1016/j.neuropharm.2017.10.032. PMID29102759.
↑Wang X, Heinz BA, Qian YW, et al. (2018). "Intracellular Binding Site for a Positive Allosteric Modulator of the Dopamine D1 Receptor". Mol. Pharmacol. 94 (4): 1232–1245. doi:10.1124/mol.118.112649. PMID30111649.
↑ 26.026.1Bermak JC, Li M, Bullock C, Weingarten P, Zhou QY (Feb 2002). "Interaction of gamma-COP with a transport motif in the D1 receptor C-terminus". Eur. J. Cell Biol. 81 (2): 77–85. doi:10.1078/0171-9335-00222. PMID11893085.
↑Bermak JC, Li M, Bullock C, Zhou QY (May 2001). "Regulation of transport of the dopamine D1 receptor by a new membrane-associated ER protein". Nat. Cell Biol. 3 (5): 492–8. doi:10.1038/35074561. PMID11331877.
↑Juhasz JR, Hasbi A, Rashid AJ, So CH, George SR, O'Dowd BF (2008). "Mu-opioid receptor heterooligomer formation with the dopamine D1 receptor as directly visualized in living cells". Eur. J. Pharmacol. 581 (3): 235–43. doi:10.1016/j.ejphar.2007.11.060. PMID18237729.
↑Rodríguez-Ruiz M, Moreno E, Moreno-Delgado D, Navarro G, Mallol J, Cortés A, Lluís C, Canela EI, Casadó V, McCormick PJ, Franco R (2016). "Heteroreceptor Complexes Formed by Dopamine D1, Histamine H3, and N-Methyl-D-Aspartate Glutamate Receptors as Targets to Prevent Neuronal Death in Alzheimer's Disease". Mol. Neurobiol. doi:10.1007/s12035-016-9995-y. PMID27370794.
External links
"Dopamine Receptors: D1". IUPHAR Database of Receptors and Ion Channels. International Union of Basic and Clinical Pharmacology.