5-HT7 receptor

Last updated
HTR7
Identifiers
Aliases HTR7 , 5-HT7, 5-HT7 receptor, 5-hydroxytryptamine receptor 7
External IDs OMIM: 182137; MGI: 99841; HomoloGene: 20244; GeneCards: HTR7; OMA:HTR7 - orthologs
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_019860
NM_000872
NM_019859

RefSeq (protein)

NP_000863
NP_062873
NP_062874

Location (UCSC) Chr 10: 90.74 – 90.86 Mb Chr 19: 35.94 – 36.03 Mb
PubMed search [3] [4]
Wikidata
View/Edit Human View/Edit Mouse

The 5-HT7 receptor is a member of the GPCR superfamily of cell surface receptors and is activated by the neurotransmitter serotonin (5-hydroxytryptamine, 5-HT). [5] The 5-HT7 receptor is coupled to Gs (stimulates the production of the intracellular signaling molecule cAMP) [6] [7] and is expressed in a variety of human tissues, particularly in the brain, the gastrointestinal tract, and in various blood vessels. [7] This receptor has been a drug development target for the treatment of several clinical disorders. [8] The 5-HT7 receptor is encoded by the HTR7 gene, which in humans is transcribed into 3 different splice variants. [9]

Contents

Function

When the 5-HT7 receptor is activated by serotonin, it sets off a cascade of events starting with release of the stimulatory G protein Gs from the GPCR complex. Gs in turn activates adenylate cyclase which increases intracellular levels of the second messenger cAMP.

The 5-HT7 receptor plays a role in smooth muscle relaxation within the vasculature and in the gastrointestinal tract. [5] The highest 5-HT7 receptor densities are in the thalamus and hypothalamus, and it is present at higher densities also in the hippocampus and cortex. The 5-HT7 receptor is involved in thermoregulation, circadian rhythm, learning and memory, and sleep. Peripheral 5-HT7 receptors are localized in enteric nerves; high levels of 5-HT7 receptor-expressing mucosal nerve fibers were observed in the colon of patients with irritable bowel syndrome. An essential role of 5-HT7 receptor in intestinal hyperalgesia was demonstrated in mouse models with visceral hypersensitivity, of which a novel 5-HT7 receptor antagonist administered perorally reduced intestinal pain levels. [10] It is also speculated that this receptor may be involved in mood regulation, suggesting that it may be a useful target in the treatment of depression. [11] [12]

Variants

Three splice variants have been identified in humans (designated h5-HT7(a), h5-HT7(b), and h5-HT7(d)), which encode receptors that differ in their carboxy terminals. [9] The h5-HT7(a) is the full length receptor (445 amino acids), [7] while the h5-HT7(b) is truncated at amino acid 432 due to alternative splice donor site. The h5-HT7(d) is a distinct isoform of the receptor: the retention of an exon cassette in the region encoding the carboxyl terminal results a 479-amino acid receptor with a c-terminus markedly different from the h5-HT7(a). A 5-HT7(c) splice variant is detectable in rat tissue but is not expressed in humans. Conversely, rats do not express a splice variant homologous to the h5-HT7(d), as the rat 5-HT7 gene lacks the exon necessary to encode this isoform. [9] Drug binding affinities are similar across the three human splice variants; [13] however, inverse agonist efficacies appear to differ between the splice variants. [14]

Discovery

In 1983, evidence for a 5-HT1-like receptor was first found. [15] Ten years later, 5-HT7 receptor was cloned and characterized. [7] It has since become clear that the receptor described in 1983 is 5-HT7. [16]

Ligands

Numerous orthosteric ligands of moderate to high affinity are known. Signaling biased ligands were discovered and developed in 2018. [17]

Agonists

Agonists mimic the effects of the endogenous ligand, which is serotonin at the 5-HT7 receptor (↑cAMP).

Antagonists

Neutral antagonists (also known as silent antagonists) bind the receptor and have no intrinsic activity but will block the activity of agonists or inverse agonists. Inverse agonists inhibit the constitutive activity of the receptor, producing functional effects opposite to those of agonists (at the 5-HT7 receptor: ↓cAMP). [29] [30] Neutral antagonists and inverse agonists are typically referred to collectively as "antagonists" and, in the case of the 5-HT7 receptor, differentiation between neutral antagonists and inverse agonists is problematic due to differing levels of inverse agonist efficacy between receptor splice variants. For instance, mesulergine and metergoline are reported to be neutral antagonists at the h5-HT7(a) and h5-HT7(d) receptor isoforms but these drugs display marked inverse agonist effects at the h5-HT7(b) splice variant. [14]

Inactivating antagonists

Inactivating antagonists are non-competitive antagonists that render the receptor persistently insensitive to agonist, which resembles receptor desensitization. Inactivation of the 5-HT7 receptor, however, does not arise from the classically described mechanisms of receptor desensitization via receptor phosphorylation, beta-arrestin recruitment, and receptor internalization. [40] Inactivating antagonists all likely interact with the 5-HT7 receptor in an irreversible/pseudo-irreversible manner, as is the case with [3H]risperidone. [41] [42]

See also

Related Research Articles

<span class="mw-page-title-main">5-HT receptor</span> Class of transmembrane proteins

5-HT receptors, 5-hydroxytryptamine receptors, or serotonin receptors, are a group of G protein-coupled receptor and ligand-gated ion channels found in the central and peripheral nervous systems. They mediate both excitatory and inhibitory neurotransmission. The serotonin receptors are activated by the neurotransmitter serotonin, which acts as their natural ligand.

<span class="mw-page-title-main">Pindolol</span> Chemical compound

Pindolol, sold under the brand name Visken among others, is a nonselective beta blocker which is used in the treatment of hypertension. It is also an antagonist of the serotonin 5-HT1A receptor, preferentially blocking inhibitory 5-HT1A autoreceptors, and has been researched as an add-on therapy to various antidepressants, such as clomipramine and the selective serotonin reuptake inhibitors (SSRIs), in the treatment of depression and obsessive-compulsive disorder.

5-HT<sub>2A</sub> receptor Subtype of serotonin receptor

The 5-HT2A receptor is a subtype of the 5-HT2 receptor that belongs to the serotonin receptor family and is a G protein-coupled receptor (GPCR). The 5-HT2A receptor is a cell surface receptor, but has several intracellular locations.

<span class="mw-page-title-main">Mianserin</span> Antidepressant

Mianserin, sold under the brand name Tolvon among others, is an atypical antidepressant that is used primarily in the treatment of depression in Europe and elsewhere in the world. It is a tetracyclic antidepressant (TeCA). Mianserin is closely related to mirtazapine, both chemically and in terms of its actions and effects, although there are significant differences between the two drugs.

5-HT<sub>2C</sub> receptor Serotonin receptor protein distributed mainly in the choroid plexus

The 5-HT2C receptor is a subtype of the 5-HT2 receptor that binds the endogenous neurotransmitter serotonin (5-hydroxytryptamine, 5-HT). Like all 5-HT2 receptors, it is a G protein-coupled receptor (GPCR) that is coupled to Gq/G11 and mediates excitatory neurotransmission. HTR2C denotes the human gene encoding for the receptor, that in humans is located on the X chromosome. As males have one copy of the gene and females have one of the two copies of the gene repressed, polymorphisms at this receptor can affect the two sexes to differing extent.

5-HT<sub>4</sub> receptor Protein-coding gene in the species Homo sapiens

5-Hydroxytryptamine receptor 4 is a protein that in humans is encoded by the HTR4 gene.

5-HT<sub>1A</sub> receptor Serotonin receptor protein distributed in the cerebrum and raphe nucleus

The serotonin 1A receptor is a subtype of serotonin receptors, or 5-HT receptors, that binds serotonin, also known as 5-HT, a neurotransmitter. 5-HT1A is expressed in the brain, spleen, and neonatal kidney. It is a G protein-coupled receptor (GPCR), coupled to the Gi protein, and its activation in the brain mediates hyperpolarization and reduction of firing rate of the postsynaptic neuron. In humans, the serotonin 1A receptor is encoded by the HTR1A gene.

5-HT<sub>1D</sub> receptor Serotonin receptor which affects locomotion and anxiety in humans

5-hydroxytryptamine (serotonin) receptor 1D, also known as HTR1D, is a 5-HT receptor, but also denotes the human gene encoding it. 5-HT1D acts on the central nervous system, and affects locomotion and anxiety. It also induces vasoconstriction in the brain.

5-HT<sub>2B</sub> receptor Mammalian protein found in Homo sapiens

5-Hydroxytryptamine receptor 2B (5-HT2B) also known as serotonin receptor 2B is a protein that in humans is encoded by the HTR2B gene. 5-HT2B is a member of the 5-HT2 receptor family that binds the neurotransmitter serotonin (5-hydroxytryptamine, 5-HT). Like all 5-HT2 receptors, the 5-HT2B receptor is Gq/G11-protein coupled, leading to downstream activation of phospholipase C.

5-HT<sub>5A</sub> receptor Protein-coding gene in the species Homo sapiens

5-Hydroxytryptamine (serotonin) receptor 5A, also known as HTR5A, is a protein that in humans is encoded by the HTR5A gene. Agonists and antagonists for 5-HT receptors, as well as serotonin uptake inhibitors, present promnesic (memory-promoting) and/or anti-amnesic effects under different conditions, and 5-HT receptors are also associated with neural changes.

5-HT<sub>6</sub> receptor Protein-coding gene in the species Homo sapiens

The 5HT6 receptor is a subtype of 5HT receptor that binds the endogenous neurotransmitter serotonin (5-hydroxytryptamine, 5HT). It is a G protein-coupled receptor (GPCR) that is coupled to Gs and mediates excitatory neurotransmission. HTR6 denotes the human gene encoding for the receptor.

<span class="mw-page-title-main">5-Carboxamidotryptamine</span> Chemical compound

5-Carboxamidotryptamine (5-CT) is a tryptamine derivative closely related to the neurotransmitter serotonin.

<span class="mw-page-title-main">MS-245</span> Chemical compound

MS-245 is a tryptamine derivative used in scientific research. It acts as a selective 5-HT6 receptor antagonist with a Ki of 2.3 nM, and was derived through structure-activity relationship development of the selective 5-HT6 agonist EMDT. It has been used as a lead compound for further development of tryptamine-derived 5-HT6 antagonists. In animal studies it has been shown to boost the activity of, but not substitute for, both amphetamine and nicotine.

<span class="mw-page-title-main">SB-269970</span> Chemical compound

SB-269970 is a drug and research chemical developed by GlaxoSmithKline used in scientific studies. It is believed to act as a selective 5-HT7 receptor antagonist (EC50 = 1.25 nM) (or possibly inverse agonist). A subsequent study in guinea pig at a concentration of 10 μM showed that it also blocks the α2-adrenergic receptor. The large difference in test concentrations however confirms the selectivity of SB-269970 for the 5-HT7 receptor.

<span class="mw-page-title-main">Tiospirone</span> Atypical antipsychotic drug

Tiospirone (BMY-13,859), also sometimes called tiaspirone or tiosperone, is an atypical antipsychotic of the azapirone class. It was investigated as a treatment for schizophrenia in the late 1980s and was found to have an effectiveness equivalent to those of typical antipsychotics in clinical trials but without causing extrapyramidal side effects. However, development was halted and it was not marketed. Perospirone, another azapirone derivative with antipsychotic properties, was synthesized and assayed several years after tiospirone. It was found to be both more potent and more selective in comparison and was commercialized instead.

<span class="mw-page-title-main">Naphthylpiperazine</span> Chemical compound

1-(1-Naphthyl)piperazine (1-NP) is a drug which is a phenylpiperazine derivative. It acts as a non-selective, mixed serotonergic agent, exerting partial agonism at the 5-HT1A, 5-HT1B, 5-HT1D, 5-HT1E, and 5-HT1F receptors, while antagonizing the 5-HT2A, 5-HT2B, and 5-HT2C receptors. It has also been shown to possess high affinity for the 5-HT3, 5-HT5A, 5-HT6, and 5-HT7 receptors, and may bind to 5-HT4 and the SERT as well. In animals it produces effects including hyperphagia, hyperactivity, and anxiolysis, of which are all likely mediated predominantly or fully by blockade of the 5-HT2C receptor.

<span class="mw-page-title-main">SB-258719</span> Drug

SB-258719 is a drug developed by GlaxoSmithKline which acts as a selective 5-HT7 receptor partial inverse agonist, and was the first such ligand identified for 5-HT7. Its use in research has mainly been in demonstrating the potential use for 5-HT7 agonists as potential novel analgesics, due to the ability of SB-258719 to block the analgesic effects of a variety of 5-HT7 agonists across several different testing models.

<span class="mw-page-title-main">SB-206553</span> Chemical compound

SB-206553 is a drug which acts as a mixed antagonist for the 5-HT2B and 5-HT2C serotonin receptors. It has anxiolytic properties in animal studies and interacts with a range of other drugs. It has also been shown to act as a positive allosteric modulator of α7 nicotinic acetylcholine receptors. Modified derivatives of SB-206553 have been used to probe the structure of the 5-HT2B receptor.

<span class="mw-page-title-main">Clorotepine</span> Antipsychotic medication

Clorotepine, also known as octoclothepin or octoclothepine, is an antipsychotic of the tricyclic group which was derived from perathiepin in 1965 and marketed in the Czech Republic by Spofa in or around 1971 for the treatment of schizophrenic psychosis.

<span class="mw-page-title-main">25CN-NBOH</span> Chemical compound

25CN-NBOH is a compound indirectly derived from the phenethylamine series of hallucinogens, which was discovered in 2014 at the University of Copenhagen. This compound is notable as one of the most selective agonist ligands for the 5-HT2A receptor yet discovered, with a pKi of 8.88 at the human 5-HT2A receptor and with 100x selectivity for 5-HT2A over 5-HT2C, and 46x selectivity for 5-HT2A over 5-HT2B. A tritiated version of 25CN-NBOH has also been accessed and used for more detailed investigations of the binding to 5-HT2 receptors and autoradiography.

References

  1. 1 2 3 GRCh38: Ensembl release 89: ENSG00000148680 Ensembl, May 2017
  2. 1 2 3 GRCm38: Ensembl release 89: ENSMUSG00000024798 Ensembl, May 2017
  3. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  4. "Mouse PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  5. 1 2 Vanhoenacker P, Haegeman G, Leysen JE (February 2000). "5-HT7 receptors: current knowledge and future prospects". Trends in Pharmacological Sciences. 21 (2): 70–7. doi:10.1016/S0165-6147(99)01432-7. PMID   10664612.
  6. Ruat M, Traiffort E, Leurs R, Tardivel-Lacombe J, Diaz J, Arrang JM, Schwartz JC (September 1993). "Molecular cloning, characterization, and localization of a high-affinity serotonin receptor (5-HT7) activating cAMP formation". Proceedings of the National Academy of Sciences of the United States of America. 90 (18): 8547–51. Bibcode:1993PNAS...90.8547R. doi: 10.1073/pnas.90.18.8547 . PMC   47394 . PMID   8397408.
  7. 1 2 3 4 Bard JA, Zgombick J, Adham N, Vaysse P, Branchek TA, Weinshank RL (November 1993). "Cloning of a novel human serotonin receptor (5-HT7) positively linked to adenylate cyclase". The Journal of Biological Chemistry. 268 (31): 23422–6. doi: 10.1016/S0021-9258(19)49479-9 . PMID   8226867.
  8. Mnie-Filali O, Lambás-Señas L, Zimmer L, Haddjeri N (December 2007). "5-HT7 receptor antagonists as a new class of antidepressants". Drug News & Perspectives. 20 (10): 613–8. doi:10.1358/dnp.2007.20.10.1181354. PMID   18301795.
  9. 1 2 3 Heidmann DE, Metcalf MA, Kohen R, Hamblin MW (April 1997). "Four 5-hydroxytryptamine7 (5-HT7) receptor isoforms in human and rat produced by alternative splicing: species differences due to altered intron-exon organization". Journal of Neurochemistry. 68 (4): 1372–81. doi:10.1046/j.1471-4159.1997.68041372.x. PMID   9084407. S2CID   25951920.
  10. 1 2 Chang WY, Yang YT, She MP, Tu CH, Lee TC, Wu MS, Sun CH, Hsin LW, Yu LC (2022). "5-HT 7 receptor-dependent intestinal neurite outgrowth contributes to visceral hypersensitivity in irritable bowel syndrome". Laboratory Investigation. 102 (9): 1023–1037. doi:10.1038/s41374-022-00800-z. PMC   9420680 . PMID   35585132.
  11. Hedlund PB, Sutcliffe JG (September 2004). "Functional, molecular and pharmacological advances in 5-HT7 receptor research". Trends in Pharmacological Sciences. 25 (9): 481–6. doi:10.1016/j.tips.2004.07.002. PMID   15559250.
  12. Naumenko VS, Popova NK, Lacivita E, Leopoldo M, Ponimaskin EG (July 2014). "Interplay between serotonin 5-HT1A and 5-HT7 receptors in depressive disorders". CNS Neuroscience & Therapeutics. 20 (7): 582–90. doi:10.1111/cns.12247. PMC   6493079 . PMID   24935787.
  13. Krobert KA, Bach T, Syversveen T, Kvingedal AM, Levy FO (June 2001). "The cloned human 5-HT7 receptor splice variants: a comparative characterization of their pharmacology, function and distribution". Naunyn-Schmiedeberg's Archives of Pharmacology. 363 (6): 620–32. doi:10.1007/s002100000369. PMID   11414657. S2CID   21899516.
  14. 1 2 Krobert KA, Levy FO (March 2002). "The human 5-HT7 serotonin receptor splice variants: constitutive activity and inverse agonist effects". British Journal of Pharmacology. 135 (6): 1563–71. doi:10.1038/sj.bjp.0704588. PMC   1573253 . PMID   11906971.
  15. Feniuk W, Humphrey PP, Watts AD (December 1983). "5-Hydroxytryptamine-induced relaxation of isolated mammalian smooth muscle". European Journal of Pharmacology. 96 (1–2): 71–8. doi:10.1016/0014-2999(83)90530-7. PMID   6662198.
  16. Hoyer D, Hannon JP, Martin GR (April 2002). "Molecular, pharmacological and functional diversity of 5-HT receptors". Pharmacology Biochemistry and Behavior. 71 (4): 533–54. doi:10.1016/S0091-3057(01)00746-8. PMID   11888546. S2CID   25543069.
  17. Kim Y, Kim H, Lee J, Lee JK, Min SJ, Seong J, Rhim H, Tae J, Lee HJ, Choo H (August 2018). "Discovery of β-Arrestin Biased Ligands of 5-HT7R". J. Med. Chem. 61 (16): 7218–7233. doi:10.1021/acs.jmedchem.8b00642. PMID   30028132. S2CID   51700960.
  18. Sprouse J, Reynolds L, Li X, Braselton J, Schmidt A (January 2004). "8-OH-DPAT as a 5-HT7 agonist: phase shifts of the circadian biological clock through increases in cAMP production". Neuropharmacology. 46 (1): 52–62. doi:10.1016/j.neuropharm.2003.08.007. PMID   14654097. S2CID   41623573.
  19. Davies MA, Sheffler DJ, Roth BL. Aripiprazole: A Novel Atypical Antipsychotic Drug With a Uniquely Robust Pharmacology. CNS Drug Reviews [Internet]. 2004 [cited 2013 Aug 4];10(4):317–36. Available from: http://onlinelibrary.wiley.com/doi/10.1111/j.1527-3458.2004.tb00030.x/pdf
  20. Brenchat A, Ejarque M, Zamanillo D, Vela JM, Romero L (August 2011). "Potentiation of morphine analgesia by adjuvant activation of 5-HT7 receptors". Journal of Pharmacological Sciences. 116 (4): 388–91. doi: 10.1254/jphs.11039sc . PMID   21778664.
  21. Brenchat A, Nadal X, Romero L, Ovalle S, Muro A, Sánchez-Arroyos R, Portillo-Salido E, Pujol M, Montero A, Codony X, Burgueño J, Zamanillo D, Hamon M, Maldonado R, Vela JM (June 2010). "Pharmacological activation of 5-HT7 receptors reduces nerve injury-induced mechanical and thermal hypersensitivity". Pain. 149 (3): 483–94. doi:10.1016/j.pain.2010.03.007. PMID   20399562. S2CID   16613426.
  22. Brenchat A, Romero L, García M, Pujol M, Burgueño J, Torrens A, Hamon M, Baeyens JM, Buschmann H, Zamanillo D, Vela JM (February 2009). "5-HT7 receptor activation inhibits mechanical hypersensitivity secondary to capsaicin sensitization in mice". Pain. 141 (3): 239–47. doi:10.1016/j.pain.2008.11.009. PMID   19118950. S2CID   27144262.
  23. Powell SL, Gödecke T, Nikolic D, Chen SN, Ahn S, Dietz B, Farnsworth NR, van Breemen RB, Lankin DC, Pauli GF, Bolton JL (December 2008). "In vitro serotonergic activity of black cohosh and identification of N(omega)-methylserotonin as a potential active constituent". Journal of Agricultural and Food Chemistry. 56 (24): 11718–26. doi:10.1021/jf803298z. PMC   3684073 . PMID   19049296.
  24. Leopoldo M, Lacivita E, Contino M, Colabufo NA, Berardi F, Perrone R (August 2007). "Structure-activity relationship study on N-(1,2,3,4-tetrahydronaphthalen-1-yl)-4-aryl-1-piperazinehexanamides, a class of 5-HT7 receptor agents. 2". Journal of Medicinal Chemistry. 50 (17): 4214–21. doi:10.1021/jm070487n. PMID   17649988.
  25. Leopoldo M, Berardi F, Colabufo NA, Contino M, Lacivita E, Niso M, Perrone R, Tortorella V (December 2004). "Structure-affinity relationship study on N-(1,2,3,4-tetrahydronaphthalen-1-yl)-4-aryl-1-piperazinealkylamides, a new class of 5-hydroxytryptamine7 receptor agents". Journal of Medicinal Chemistry. 47 (26): 6616–24. doi:10.1021/jm049702f. PMID   15588097.
  26. Hogendorf AS, Hogendorf A, Kurczab R, Satała G, Lenda T, Walczak M, Latacz G, Handzlik J, Kieć-Kononowicz K, Wierońska JM, Woźniak M, Cieślik P, Bugno R, Staroń J, Bojarski AJ (May 2017). "Low-basicity 5-HT7 Receptor Agonists Synthesized Using the van Leusen Multicomponent Protocol". Scientific Reports. 7 (1444): 1444. Bibcode:2017NatSR...7.1444H. doi:10.1038/s41598-017-00822-4. PMC   5431432 . PMID   28473721.
  27. Latacz G, Hogendorf AS, Hogendorf A, Lubelska A, Wierońska JM, Woźniak M, Cieślik P, Kieć-Kononowicz K, Handzlik J, Bojarski AJ (September 2018). "Search for a 5-CT alternative. In vitro and in vivo evaluation of novel pharmacological tools: 3-(1-alkyl-1H-imidazol-5-yl)-1H-indole-5-carboxamides, low-basicity 5-HT7 receptor agonists". MedChemComm. 9 (11): 1882–1890. doi:10.1039/c8md00313k. PMC   6256855 . PMID   30568756.
  28. Hogendorf AS, Hogendorf A, Popiolek-Barczyk K, Ciechanowska A, Mika J, Satała G, Walczak M, Latacz G, Handzlik J, Kieć-Kononowicz K, Ponimaskin E, Schade S, Zeug A, Bijata M, Kubicki M, Kurczab R, Lenda T, Staroń J, Kurczab R, Satała G, Lenda T, Walczak M, Latacz G, Handzlik J, Kieć-Kononowicz K, Wierońska JM, Woźniak M, Cieślik P, Bugno R, Staroń J, Bugno R, Duszyńska B, Pilarski B, Bojarski AJ (2019). "Fluorinated indole-imidazole conjugates: Selective orally bioavailable 5-HT7 receptor low-basicity agonists, potential neuropathic painkillers". European Journal of Medicinal Chemistry. 170: 261–275. doi:10.1016/j.ejmech.2019.03.017. PMID   30904783. S2CID   85498356.
  29. Pittalà V, Salerno L, Modica M, Siracusa MA, Romeo G (September 2007). "5-HT7 receptor ligands: recent developments and potential therapeutic applications". Mini Reviews in Medicinal Chemistry. 7 (9): 945–60. doi:10.2174/138955707781662663. PMID   17897083.
  30. Leopoldo M (March 2004). "Serotonin(7) receptors (5-HT(7)Rs) and their ligands". Current Medicinal Chemistry. 11 (5): 629–61. doi:10.2174/0929867043455828. PMID   15032609.
  31. Volk B, Barkóczy J, Hegedus E, Udvari S, Gacsályi I, Mezei T, Pallagi K, Kompagne H, Lévay G, Egyed A, Hársing LG, Spedding M, Simig G (April 2008). "(Phenylpiperazinyl-butyl)oxindoles as selective 5-HT7 receptor antagonists". Journal of Medicinal Chemistry. 51 (8): 2522–32. doi:10.1021/jm070279v. PMID   18361484.
  32. Abbas AI, Hedlund PB, Huang XP, Tran TB, Meltzer HY, Roth BL (July 2009). "Amisulpride is a potent 5-HT7 antagonist: relevance for antidepressant actions in vivo". Psychopharmacology. 205 (1): 119–28. doi:10.1007/s00213-009-1521-8. PMC   2821721 . PMID   19337725.
  33. Ivachtchenko AV, Lavrovsky Y, Okun I (2016). "AVN-101: A Multi-Target Drug Candidate for the Treatment of CNS Disorders". J. Alzheimer's Dis. 53 (2): 583–620. doi:10.3233/JAD-151146. PMC   4969713 . PMID   27232215.
  34. Lacivita E, Patarnello D, Stroth N, Caroli A, Niso M, Contino M, De Giorgio P, Di Pilato P, Colabufo NA, Berardi F, Perrone R, Svenningsson P, Hedlund PB, Leopoldo M (2012). "Investigations on the 1-(2-Biphenyl)piperazine Motif: Identification of New Potent and Selective Ligands for the Serotonin7 (5-HT7) Receptor with Agonist or Antagonist Action in Vitro or ex Vivo". Journal of Medicinal Chemistry. 55 (14): 6375–6380. doi:10.1021/jm3003679. PMID   22738316.
  35. 1 2 Romero G, Pujol M, Pauwels PJ (October 2006). "Reanalysis of constitutively active rat and human 5-HT7(a) receptors in HEK-293F cells demonstrates lack of silent properties for reported neutral antagonists". Naunyn-Schmiedeberg's Archives of Pharmacology. 374 (1): 31–9. doi:10.1007/s00210-006-0093-y. PMID   16967291. S2CID   25203956.
  36. Forbes IT, Dabbs S, Duckworth DM, Jennings AJ, King FD, Lovell PJ, Brown AM, Collin L, Hagan JJ, Middlemiss DN, Riley GJ, Thomas DR, Upton N (February 1998). "(R)-3,N-dimethyl-N-[1-methyl-3-(4-methyl-piperidin-1-yl) propyl]benzenesulfonamide: the first selective 5-HT7 receptor antagonist". Journal of Medicinal Chemistry. 41 (5): 655–7. doi:10.1021/jm970519e. PMID   9513592.
  37. 1 2 Mahé C, Loetscher E, Feuerbach D, Müller W, Seiler MP, Schoeffter P (July 2004). "Differential inverse agonist efficacies of SB-258719, SB-258741 and SB-269970 at human recombinant serotonin 5-HT7 receptors". European Journal of Pharmacology. 495 (2–3): 97–102. doi:10.1016/j.ejphar.2004.05.033. PMID   15249157.
  38. Lovell PJ, Bromidge SM, Dabbs S, Duckworth DM, Forbes IT, Jennings AJ, King FD, Middlemiss DN, Rahman SK, Saunders DV, Collin LL, Hagan JJ, Riley GJ, Thomas DR (February 2000). "A novel, potent, and selective 5-HT(7) antagonist: (R)-3-(2-(2-(4-methylpiperidin-1-yl)ethyl)pyrrolidine-1-sulfonyl) phen ol (SB-269970)". Journal of Medicinal Chemistry. 43 (3): 342–5. doi:10.1021/jm991151j. PMID   10669560.
  39. Forbes IT, Douglas S, Gribble AD, Ife RJ, Lightfoot AP, Garner AE, Riley GJ, Jeffrey P, Stevens AJ, Stean TO, Thomas DR (November 2002). "SB-656104-A: a novel 5-HT(7) receptor antagonist with improved in vivo properties". Bioorganic & Medicinal Chemistry Letters. 12 (22): 3341–4. doi:10.1016/S0960-894X(02)00690-X. PMID   12392747.
  40. Zhang J, Ferguson SS, Barak LS, Aber MJ, Giros B, Lefkowitz RJ, Caron MG (1997). "Molecular mechanisms of G protein-coupled receptor signaling: role of G protein-coupled receptor kinases and arrestins in receptor desensitization and resensitization". Receptors & Channels. 5 (3–4): 193–9. PMID   9606723.
  41. 1 2 3 4 Smith C, Rahman T, Toohey N, Mazurkiewicz J, Herrick-Davis K, Teitler M (October 2006). "Risperidone irreversibly binds to and inactivates the h5-HT7 serotonin receptor". Molecular Pharmacology. 70 (4): 1264–70. doi:10.1124/mol.106.024612. PMID   16870886. S2CID   1678887.
  42. 1 2 3 4 Knight JA, Smith C, Toohey N, Klein MT, Teitler M (February 2009). "Pharmacological analysis of the novel, rapid, and potent inactivation of the human 5-Hydroxytryptamine7 receptor by risperidone, 9-OH-Risperidone, and other inactivating antagonists". Molecular Pharmacology. 75 (2): 374–80. doi:10.1124/mol.108.052084. PMC   2671286 . PMID   18996971.

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