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Abstract
Clinical depression is a common, debilitating and heterogenous disorder. Existing treatments for depression are inadequate for a significant minority of patients and new approaches are urgently needed. A wealth of evidence implicates the serotonin 1A (5-HT1A) receptor in the pathophysiology of depression. Stimulation of the 5-HT1A receptor is an existing therapeutic target for treating depression and anxiety, using drugs such as buspirone and tandospirone. However, activation of 5-HT1A raphe autoreceptors has also been suggested to be responsible for the delay in the therapeutic action of conventional antidepressants such as selective serotonin reuptake inhibitors (SSRIs). This narrative review provides a brief overview of the 5-HT1A receptor, the evidence implicating it in depression and in the effects of conventional antidepressant treatment. We highlight that pre- and post-synaptic 5-HT1A receptors may have divergent roles in the pathophysiology and treatment of depression. To date, developing this understanding to progress therapeutic discovery has been limited, partly due to a paucity of specific pharmacological probes suitable for use in humans. The development of 5-HT1A 'biased agonism', using compounds such as NLX-101, offers the opportunity to further elucidate the roles of pre- and post-synaptic 5-HT1A receptors. We describe how experimental medicine approaches can be helpful in profiling the effects of 5-HT1A receptor modulation on the different clinical domains of depression, and outline some potential neurocognitive models that could be used to test the effects of 5-HT1A biased agonists.
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Affiliation(s)
- Alexander L W Smith
- Department of Psychiatry, Warneford Hospital, University of Oxford, Oxford, OX3 7JX, UK
- Oxford Health NHS Foundation Trust, Oxford, UK
| | - Catherine J Harmer
- Department of Psychiatry, Warneford Hospital, University of Oxford, Oxford, OX3 7JX, UK
- Oxford Health NHS Foundation Trust, Oxford, UK
| | - Philip J Cowen
- Department of Psychiatry, Warneford Hospital, University of Oxford, Oxford, OX3 7JX, UK
- Oxford Health NHS Foundation Trust, Oxford, UK
| | - Susannah E Murphy
- Department of Psychiatry, Warneford Hospital, University of Oxford, Oxford, OX3 7JX, UK.
- Oxford Health NHS Foundation Trust, Oxford, UK.
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Asproni B, Catto M, Loriga G, Murineddu G, Corona P, Purgatorio R, Cichero E, Fossa P, Scarano N, Martínez AL, Brea J, Pinna GA. Novel thienocycloalkylpyridazinones as useful scaffolds for acetylcholinesterase inhibition and serotonin 5-HT6 receptor interaction. Bioorg Med Chem 2023; 84:117256. [PMID: 37003157 DOI: 10.1016/j.bmc.2023.117256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 03/10/2023] [Accepted: 03/17/2023] [Indexed: 03/31/2023]
Abstract
A library of eighteen thienocycloalkylpyridazinones was synthesized for human acetylcholinesterase (hAChE) and butyrylcholinesterase (hBChE) inhibition and serotonin 5-HT6 receptor subtype interaction by following a multitarget-directed ligand approach (MTDL), as a suitable strategy for treatment of Alzheimer's disease (AD). The novel compounds featured a tricyclic scaffold, namely thieno[3,2-h]cinnolinone, thienocyclopentapyridazinone and thienocycloheptapyridazinone, connected through alkyl chains of variable length to proper amine moieties, most often represented by N-benzylpiperazine or 1-(phenylsulfonyl)-4-(piperazin-1-ylmethyl)-1H-indole as structural elements addressing AChE and 5-HT6 interaction, respectively. Our study highlighted the versatility of thienocycloalkylpyridazinones as useful architectures for AChE interaction, with several N-benzylpiperazine-based analogues emerging as potent and selective hAChE inhibitors with IC50 in the 0.17-1.23 μM range, exhibiting low to poor activity for hBChE (IC50 = 4.13-9.70 μM). The introduction of 5-HT6 structural moiety phenylsulfonylindole in place of N-benzylpiperazine, in tandem with a pentamethylene linker, gave potent 5-HT6 thieno[3,2-h]cinnolinone and thienocyclopentapyridazinone-based ligands both displaying hAChE inhibition in the low micromolar range and unappreciable activity towards hBChE. While docking studies provided a rational structural explanation for AChE/BChE enzyme and 5-HT6 receptor interaction, in silico prediction of ADME properties of tested compounds suggested further optimization for development of such compounds in the field of MTDL for AD.
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Głuch-Lutwin M, Sałaciak K, Pytka K, Gawalska A, Jamrozik M, Śniecikowska J, Kołaczkowski M, Depoortère RY, Newman-Tancredi A. The 5-HT 1A receptor biased agonist, NLX-204, shows rapid-acting antidepressant-like properties and neurochemical changes in two mouse models of depression. Behav Brain Res 2023; 438:114207. [PMID: 36368443 DOI: 10.1016/j.bbr.2022.114207] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2022] [Revised: 11/03/2022] [Accepted: 11/05/2022] [Indexed: 11/09/2022]
Abstract
Activation of cortical serotonin 5-HT1A receptors may be a promising strategy to achieve rapid-acting antidepressant (RAAD) activity. NLX-204 is a selective 5-HT1A receptor biased agonist that, in naïve mice, robustly decreases immobility in the forced swim test (FST), and preferentially phosphorylates extracellular signal-regulated kinase (ERK1/2), involved in antidepressant activity. Here, we evaluated the properties of NLX-204 in two mouse models of depression. Male CD-1 mice were subjected to unpredictable chronic mild stress (UCMS) for 4-weeks or to repeated corticosterone (CORT, 20 mg/kg s.c./day) for 3-weeks before receiving acute administration of NLX-204 (2 mg/kg, p.o.). Depressive-like behavior was assessed in the FST, anhedonia-like behavior in the sucrose preference test (SPT) and locomotor activity was also recorded. Phosphorylation of ERK1/2 (pERK1/2) and cAMP response binding element (pCREB) were measured ex vivo in hippocampus and prefrontal cortex (PFC). UCMS or CORT treatment increased immobility in the FST, elicited a sucrose preference deficit, and decreased pERK1/2 and pCREB levels in PFC and hippocampus. NLX-204 reduced depressive-like behavior in the FST in CORT and UCMS mice, and normalized sucrose preference in CORT mice, suggesting anti-anhedonic activity. NLX-204 increased pERK1/2 levels in PFC of UCMS mice. NLX-204 also increased pCREB levels in PFC of CORT mice. These data suggest that NLX-204 has RAAD-like properties not only in naïve mice, but also in mice in a "depressive-like" state, and that these involve changes in PFC and hippocampal pERK1/2 and pCREB levels. These data provide additional evidence that activation of 5-HT1A receptors by selective biased agonists, such as NLX-204, may constitute a promising RAAD strategy.
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Affiliation(s)
- Monika Głuch-Lutwin
- Department of Pharmacobiology, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland
| | - Kinga Sałaciak
- Department of Pharmacodynamics, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland
| | - Karolina Pytka
- Department of Pharmacodynamics, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland
| | - Alicja Gawalska
- Department of Medicinal Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland
| | - Marek Jamrozik
- Department of Medicinal Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland
| | - Joanna Śniecikowska
- Department of Medicinal Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland
| | - Marcin Kołaczkowski
- Department of Medicinal Chemistry, Faculty of Pharmacy, Jagiellonian University Medical College, Krakow, Poland
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Belmer A, Depoortere R, Beecher K, Newman-Tancredi A, Bartlett SE. Neural serotonergic circuits for controlling long-term voluntary alcohol consumption in mice. Mol Psychiatry 2022; 27:4599-610. [PMID: 36195637 DOI: 10.1038/s41380-022-01789-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Revised: 09/05/2022] [Accepted: 09/09/2022] [Indexed: 12/14/2022]
Abstract
Alcohol-use-disorders are chronic relapsing illnesses, often co-morbid with anxiety. We have previously shown using the "drinking-in-the-dark" model in mice that the stimulation of the serotonin receptor 1A (5-HT1A) reduces ethanol binge-drinking behaviour and withdrawal-induced anxiety. The 5-HT1A receptor is located either on Raphe neurons as autoreceptors, or on target neurons as heteroreceptors. By combining a pharmacological approach with biased agonists targeting the 5-HT1A auto- or heteroreceptor and a chemogenetic approach (DREADDs), here we identified that ethanol-binge drinking behaviour is dependent on 5-HT1A autoreceptors and 5-HT neuronal function, with a transition from DRN-dependent regulation of short-term (6 weeks) ethanol intake, to MRN-dependent regulation after longer ethanol exposure (12 weeks). We further identified a serotonergic microcircuit (5-HTMRN→DG) originating from the MRN and projecting to the dentate gyrus (DG) of the hippocampus, that is specifically affected by, and modulates long-term ethanol consumption. The present study indicates that targeting Raphe nuclei 5-HT1A autoreceptors with agonists might represent an innovative pharmacotherapeutic strategy to combat alcohol abuse.
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Broadbear JH, Depoortere RY, Vacy K, Ralph D, Tunstall BJ, Newman-Tancredi A. Discriminative stimulus properties of the 5-HT1A receptor biased agonists NLX-101 and F13714, in rats trained to discriminate 8-OH-DPAT from saline. Behav Pharmacol 2021; 32:652-659. [PMID: 34751175 PMCID: PMC8589115 DOI: 10.1097/fbp.0000000000000659] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
NLX-101 and F13714 are selective, full efficacy, biased agonists of the serotonin (5-HT1A) receptor. NLX-101 preferentially activates cortical postsynaptic 5-HT1A receptors, whereas F13714 preferentially activates raphe nuclei presynaptic 5-HT1A receptors. We compared NLX-101 and F13714 for their efficacy and potency to substitute for the discriminative cue produced by the prototypical, nonbiased 5-HT1A receptor agonist 8-OH-DPAT (racemate). Male and female Sprague-Dawley rats were trained to discriminate 8-OH-DPAT (0.1 mg/kg i.p., 20 min pretreatment) from saline using a classical two-lever drug-discrimination procedure. 8-OH-DPAT (0.01 and 0.05 mg/kg i.p.) dose-dependently substituted for the training dose, with about 50% responding on the 8-OH-DPAT-associated lever at 0.05 mg/kg. F13714 fully and very potently substituted for the training dose of 8-OH-DPAT from 0.018 mg/kg i.p., whereas NLX-101 only achieved full substitution at 0.5 mg/kg i.p., a dose which is known to also activate presynaptic 5-HT1A receptors. The 5-HT1A receptor partial agonist, buspirone, partially substituted (~80%) at 1 and 2 mg/kg i.p., doses which also decreased response rates. F13714 decreased response rates at 0.05 mg/kg. The selective 5-HT1A receptor antagonist WAY-100 635 (1 mg/kg s.c., 40 min pretreatment) elicited almost no responding on the 8-OH-DPAT-associated lever by itself, but blocked the discriminative stimulus effects produced by administration (20 min pretreatment) of 8-OH-DPAT (0.1 mg/kg), F13714 (0.025 mg/kg), NLX-101 (0.5 mg/kg) or buspirone (1 mg/kg). These data suggest that the discriminative cue produced by 0.1 mg/kg i.p. 8-OH-DPAT results from activation of presynaptic 5-HT1A receptors. They also further demonstrate the distinct profiles in behavioral models of 5-HT1A receptor-biased agonists.
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Affiliation(s)
- Jillian H Broadbear
- Spectrum Personality Disorder Service, Richmond, Victoria, Australia
- Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Victoria, Australia
| | | | - Kristina Vacy
- Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Victoria, Australia
- The Florey Institute for Neuroscience and Mental Health, Parkville, Victoria, Australia
| | - David Ralph
- Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Victoria, Australia
| | - Brendan J Tunstall
- Faculty of Medicine, Nursing and Health Sciences, Monash University, Clayton, Victoria, Australia
- Department of Pharmacology, Addiction Science, and Toxicology, The University of Tennessee Health Science Center, Memphis, Tennessee, USA
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Aguiar RPD, Newman-Tancredi A, Prickaerts J, Oliveira RMWD. The 5-HT 1A receptor as a serotonergic target for neuroprotection in cerebral ischemia. Prog Neuropsychopharmacol Biol Psychiatry 2021; 109:110210. [PMID: 33333136 DOI: 10.1016/j.pnpbp.2020.110210] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 12/01/2020] [Accepted: 12/10/2020] [Indexed: 12/13/2022]
Abstract
Cerebral ischemia due to stroke or cardiac arrest greatly affects daily functioning and the quality of life of patients and has a high socioeconomic impact due to the surge in their prevalence. Advances in the identification of an effective pharmacotherapy to promote neuroprotection and recovery after a cerebral ischemic insult are, however, limited. The serotonin 1A (5-HT1A) receptor has been implicated in the regulation of several brain functions, including mood, emotions, memory, and neuroplasticity, all of which are deleteriously affected by cerebral ischemia. This review focuses on the specific roles and mechanisms of 5-HT1A receptors in neuroprotection in experimental models of cerebral ischemia. We present experimental evidence that 5-HT1A receptor agonists can prevent neuronal damage and promote functional recovery induced by focal and transient global ischemia in rodents. However, indiscriminate activation of pre-and postsynaptic by non-biased 5-HT1A receptor agonists may be a limiting factor in the anti-ischemic clinical efficacy of these compounds since 5-HT1A receptors in different brain regions can mediate diverging or even contradictory responses. Current insights are presented into the 'biased' 5-HT1A post-synaptic heteroreceptor agonist NLX-101 (also known as F15599), a compound that preferentially and potently stimulates postsynaptic cortical pyramidal neurons without inhibiting firing of serotoninergic neurons, as a potential strategy providing neuroprotection in cerebral ischemic conditions.
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Affiliation(s)
- Rafael Pazinatto de Aguiar
- Department of Pharmacology and Therapeutics, State University of Maringá, Av. Colombo, 5790, CEP 87020-900, Maringá, Paraná, Brazil
| | | | - Jos Prickaerts
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, The Netherlands
| | - Rúbia Maria Weffort de Oliveira
- Department of Pharmacology and Therapeutics, State University of Maringá, Av. Colombo, 5790, CEP 87020-900, Maringá, Paraná, Brazil.
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Newman-Tancredi A, Depoortère RY, Kleven MS, Kołaczkowski M, Zimmer L. Translating biased agonists from molecules to medications: Serotonin 5-HT 1A receptor functional selectivity for CNS disorders. Pharmacol Ther 2021; 229:107937. [PMID: 34174274 DOI: 10.1016/j.pharmthera.2021.107937] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2021] [Revised: 06/01/2021] [Accepted: 06/17/2021] [Indexed: 12/18/2022]
Abstract
Biased agonism (or "functional selectivity") at G-protein-coupled receptors has attracted rapidly increasing interest as a means to improve discovery of more efficacious and safer pharmacotherapeutics. However, most studies are limited to in vitro tests of cellular signaling and few biased agonists have progressed to in vivo testing. As concerns 5-HT1A receptors, which exert a major control of serotonergic signaling in diverse CNS regions, study of biased agonism has previously been limited by the poor target selectivity and/or partial agonism of classically available ligands. However, a new generation of highly selective, efficacious and druggable agonists has advanced the study of biased agonism at this receptor and created new therapeutic opportunities. These novel agonists show differential properties for G-protein signaling, cellular signaling (particularly pERK), electrophysiological effects, neurotransmitter release, neuroimaging by PET and pharmacoMRI, and behavioral tests of mood, motor activity and side effects. Overall, NLX-101 (a.k.a. F15599) exhibits preferential activation of cortical and brain stem 5-HT1A receptors, whereas NLX-112 (a.k.a. befiradol or F13640) shows prominent activation of 5-HT1A autoreceptors in Raphe nuclei and in regions associated with motor control. Accordingly, NLX-101 is potently active in rodent models of depression and respiratory control, whereas NLX-112 shows promising activity in models of Parkinson's disease across several species - rat, marmoset and macaque. Moreover, NLX-112 has also been labeled with 18F to produce the first agonist PET radiopharmaceutical (known as [18F]-F13640) for investigation of the active state of 5-HT1A receptors in rodent, primate and human. The structure-functional activity relationships of biased agonists have been investigated by receptor modeling and novel compounds have been identified which exhibit increased affinity at 5-HT1A receptors and new profiles of cellular signaling bias, notably for β-arrestin recruitment versus pERK. Taken together, the data suggest that 5-HT1A receptor biased agonists constitute potentially superior pharmacological agents for treatment of CNS disorders involving serotonergic mechanisms.
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Affiliation(s)
| | | | | | | | - Luc Zimmer
- Université Claude Bernard Lyon1, Lyon, France; Hospices Civils de Lyon, Lyon, France; Lyon Neuroscience Research Center, CNRS-INSERM, France
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Depoortere RY, Auclair AL, Newman-Tancredi A. NLX-101, a cortical 5-HT 1A receptor biased agonist, reverses scopolamine-induced deficit in the delayed non-matching to position model of cognition. Brain Res 2021; 1765:147493. [PMID: 33887253 DOI: 10.1016/j.brainres.2021.147493] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 04/08/2021] [Accepted: 04/16/2021] [Indexed: 12/15/2022]
Abstract
NLX-101 is a selective, high efficacy, biased agonist at post-synaptic cortical 5-HT1A receptors. We have previously shown that it opposes deficits produced by blockade of NMDA receptors and has pro-cognitive activity of its own. Based on the strong interaction between 5-HT1A receptors and the central cholinergic system, we tested NLX-101 on scopolamine-induced impairment of cognition in a delayed non-matching to position (DNMTP) model. The cholinesterase inhibitor, tacrine, was used as a comparator. In operant chambers with two retractable levers, male rats were trained to press one randomly presented lever during a "sample" phase. Following a time delay of either 1, 5 or 10 s, both levers were then presented, the rat being required to press the correct lever (i.e. the one not previously presented) to receive a food pellet reward. Scopolamine (0.16 mg/kg i.p.) significantly impaired accuracy (i.e. choice of correct lever) at 5 and 10 s delays. In contrast, NLX-101 (0.04, 0.16, 0.63 mg/kg i.p.) did not worsen accuracy, except at 0.63 mg/kg. Moreover, NLX-101 (0.04 and 0.16 mg/kg) dose-dependently and significantly opposed scopolamine-induced impairment for 5 and 10 s delays, with near-total reversal at 10 s. The acetylcholinesterase inhibitor, tacrine, also opposed scopolamine-induced impairment but was less potent and efficacious, with a single significant effect at 2.5 mg/kg and 5 s delay only. The present data suggest that biased agonism at post-synaptic, cortical 5-HT1A receptors could prove useful in neurological or neuropsychiatric pathologies characterized by cognitive deficits consecutive to a reduced central cholinergic tone.
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France CP, Ahern GP, Averick S, Disney A, Enright HA, Esmaeli-Azad B, Federico A, Gerak LR, Husbands SM, Kolber B, Lau EY, Lao V, Maguire DR, Malfatti MA, Martinez G, Mayer BP, Pravetoni M, Sahibzada N, Skolnick P, Snyder EY, Tomycz N, Valdez CA, Zapf J. Countermeasures for Preventing and Treating Opioid Overdose. Clin Pharmacol Ther 2020; 109:578-590. [PMID: 33113208 DOI: 10.1002/cpt.2098] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 10/15/2020] [Indexed: 02/06/2023]
Abstract
The only medication available currently to prevent and treat opioid overdose (naloxone) was approved by the US Food and Drug Administration (FDA) nearly 50 years ago. Because of its pharmacokinetic and pharmacodynamic properties, naloxone has limited utility under some conditions and would not be effective to counteract mass casualties involving large-scale deployment of weaponized synthetic opioids. To address shortcomings of current medical countermeasures for opioid toxicity, a trans-agency scientific meeting was convened by the US National Institute of Allergy and Infectious Diseases/National Institutes of Health (NIAID/NIH) on August 6 and 7, 2019, to explore emerging alternative approaches for treating opioid overdose in the event of weaponization of synthetic opioids. The meeting was initiated by the Chemical Countermeasures Research Program (CCRP), was organized by NIAID, and was a collaboration with the National Institute on Drug Abuse/NIH (NIDA/NIH), the FDA, the Defense Threat Reduction Agency (DTRA), and the Biomedical Advanced Research and Development Authority (BARDA). This paper provides an overview of several presentations at that meeting that discussed emerging new approaches for treating opioid overdose, including the following: (1) intranasal nalmefene, a competitive, reversible opioid receptor antagonist with a longer duration of action than naloxone; (2) methocinnamox, a novel opioid receptor antagonist; (3) covalent naloxone nanoparticles; (4) serotonin (5-HT)1A receptor agonists; (5) fentanyl-binding cyclodextrin scaffolds; (6) detoxifying biomimetic "nanosponge" decoy receptors; and (7) antibody-based strategies. These approaches could also be applied to treat opioid use disorder.
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Affiliation(s)
- Charles P France
- Department of Pharmacology, Addiction Research, Treatment and Training Center of Excellence, University of Texas Health Science Center, San Antonio, Texas, USA
| | | | - Saadyah Averick
- Neuroscience Institute, Allegheny Health Network, Pittsburgh, Pennsylvania, USA
| | - Alex Disney
- Department of Pharmacy and Pharmacology, University of Bath, Bath, UK
| | | | - Babak Esmaeli-Azad
- CellCure (Stem Cell Division of CiBots, Inc.), San Diego, California, USA
| | - Arianna Federico
- CellCure (Stem Cell Division of CiBots, Inc.), San Diego, California, USA
| | - Lisa R Gerak
- Department of Pharmacology, Addiction Research, Treatment and Training Center of Excellence, University of Texas Health Science Center, San Antonio, Texas, USA
| | | | | | - Edmond Y Lau
- Lawrence Livermore National Laboratory, Livermore, California, USA
| | - Victoria Lao
- Lawrence Livermore National Laboratory, Livermore, California, USA
| | - David R Maguire
- Department of Pharmacology, Addiction Research, Treatment and Training Center of Excellence, University of Texas Health Science Center, San Antonio, Texas, USA
| | | | - Girardo Martinez
- CellCure (Stem Cell Division of CiBots, Inc.), San Diego, California, USA
| | - Brian P Mayer
- Lawrence Livermore National Laboratory, Livermore, California, USA
| | - Marco Pravetoni
- Department of Pharmacology, Center for Immunology, University of Minnesota Medical School, Minneapolis, Minnesota, USA
| | | | - Phil Skolnick
- Opiant Pharmaceuticals, Inc., Santa Monica, California, USA
| | - Evan Y Snyder
- Sanford Burnham Prebys Medical Discovery Institute, La Jolla, California, USA
| | - Nestor Tomycz
- Neuroscience Institute, Allegheny Health Network, Pittsburgh, Pennsylvania, USA
| | - Carlos A Valdez
- Lawrence Livermore National Laboratory, Livermore, California, USA
| | - Jim Zapf
- CellCure (Stem Cell Division of CiBots, Inc.), San Diego, California, USA
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Besckow EM, Nonemacher NT, Garcia CS, da Silva Espíndola CN, Balbom ÉB, Gritzenco F, Savegnago L, Godoi B, Bortolatto CF, Brüning CA. Antidepressant-like effect of a selenopropargylic benzamide in mice: involvement of the serotonergic system. Psychopharmacology (Berl) 2020; 237:3149-3159. [PMID: 32617647 DOI: 10.1007/s00213-020-05600-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2019] [Accepted: 06/26/2020] [Indexed: 12/13/2022]
Abstract
RATIONALE Major depressive disorder is a psychiatric disorder that requires considerable attention, since it dramatically impairs the quality of life of the sufferers. The available treatments do not have the efficacy needed, often presenting several side effects. Organoselenium compounds and benzamides have presented some pharmacological properties, among them an antidepressant-like effect. OBJECTIVES AND METHODS This study evaluated the antidepressant-like effect of N-(3-(phenylselanyl)prop-2-yn-1-yl)benzamide (SePB), an organoselenium compound containing a benzamide moiety, on the forced swimming test (FST) and the tail suspension test (TST) in mice, as well as the involvement of the serotonergic system in its effect. RESULTS SePB, tested after different times (15-120 min) and doses (1-50 mg/kg, intragastrically (i.g.)), reduced immobility of male mice during FST and TST, without changing locomotor activity in the open-field test (OFT), demonstrating its antidepressant-like effect. SePB (10 mg/kg) also produced an antidepressant-like effect in female mice in the TST. The preadministration of the serotonin (5-HT) depletor p-chlorophenylalanine (pCPA; 100 mg/kg, intraperitoneal route (i.p.) once daily for 4 days) prevented the anti-immobility effect of SePB, indicating that the serotonergic system is involved in the SePB antidepressant-like effect. The preadministration of the selective serotonergic receptor antagonists WAY100635 (0.1 mg/kg, subcutaneous route (s.c.), a selective 5-HT1A receptor antagonist), ketanserin (1 mg/kg, i.p., a 5-HT2A/2C receptor antagonist), and ondansetron (1 mg/kg, i.p., a selective 5-HT3 receptor antagonist) also prevented the anti-immobility effect of SePB, demonstrating that these receptors are involved in the antidepressant-like effect of SePB. CONCLUSION The search for new antidepressants drugs is a noteworthy goal. This study has described a new compound with an antidepressant-like effect, whose mechanism of action is related to modulation of the serotonergic system.
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Affiliation(s)
- Evelyn Mianes Besckow
- Laboratory of Biochemistry and Molecular Neuropharmacology (LABIONEM), Neurobiotechnology Research Group, Postgraduate Program in Biochemistry and Bioprospecting (PPGBBio), Center for Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), Capão do Leão Campus, Pelotas, RS, 96010-900, Brazil
| | - Natália Tavares Nonemacher
- Laboratory of Biochemistry and Molecular Neuropharmacology (LABIONEM), Neurobiotechnology Research Group, Postgraduate Program in Biochemistry and Bioprospecting (PPGBBio), Center for Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), Capão do Leão Campus, Pelotas, RS, 96010-900, Brazil
| | - Cleisson Schossler Garcia
- Laboratory of Biochemistry and Molecular Neuropharmacology (LABIONEM), Neurobiotechnology Research Group, Postgraduate Program in Biochemistry and Bioprospecting (PPGBBio), Center for Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), Capão do Leão Campus, Pelotas, RS, 96010-900, Brazil
| | - Carlos Natã da Silva Espíndola
- Laboratory of Biochemistry and Molecular Neuropharmacology (LABIONEM), Neurobiotechnology Research Group, Postgraduate Program in Biochemistry and Bioprospecting (PPGBBio), Center for Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), Capão do Leão Campus, Pelotas, RS, 96010-900, Brazil
| | - Éverton Berwanger Balbom
- Núcleo de Síntese, Aplicação e Análise de Compostos Orgânicos e Inorgânicos (NUSAACOI), Federal University of Fronteira Sul (UFFS), Cerro Largo, RS, Brazil
| | - Fabiane Gritzenco
- Núcleo de Síntese, Aplicação e Análise de Compostos Orgânicos e Inorgânicos (NUSAACOI), Federal University of Fronteira Sul (UFFS), Cerro Largo, RS, Brazil
| | - Lucielli Savegnago
- Postgraduate Program in Biotechnology, Neurobiotechnology Research Group, Center of Biotechnology, Federal University of Pelotas, Pelotas, RS, Brazil
| | - Benhur Godoi
- Núcleo de Síntese, Aplicação e Análise de Compostos Orgânicos e Inorgânicos (NUSAACOI), Federal University of Fronteira Sul (UFFS), Cerro Largo, RS, Brazil
| | - Cristiani Folharini Bortolatto
- Laboratory of Biochemistry and Molecular Neuropharmacology (LABIONEM), Neurobiotechnology Research Group, Postgraduate Program in Biochemistry and Bioprospecting (PPGBBio), Center for Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), Capão do Leão Campus, Pelotas, RS, 96010-900, Brazil.
| | - César Augusto Brüning
- Laboratory of Biochemistry and Molecular Neuropharmacology (LABIONEM), Neurobiotechnology Research Group, Postgraduate Program in Biochemistry and Bioprospecting (PPGBBio), Center for Chemical, Pharmaceutical and Food Sciences (CCQFA), Federal University of Pelotas (UFPel), Capão do Leão Campus, Pelotas, RS, 96010-900, Brazil.
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11
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Sniecikowska J, Gluch-Lutwin M, Bucki A, Więckowska A, Siwek A, Jastrzebska-Wiesek M, Partyka A, Wilczyńska D, Pytka K, Latacz G, Przejczowska-Pomierny K, Wyska E, Wesołowska A, Pawłowski M, Newman-Tancredi A, Kolaczkowski M. Discovery of Novel pERK1/2- or β-Arrestin-Preferring 5-HT 1A Receptor-Biased Agonists: Diversified Therapeutic-like versus Side Effect Profile. J Med Chem 2020; 63:10946-10971. [PMID: 32883072 PMCID: PMC7586344 DOI: 10.1021/acs.jmedchem.0c00814] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
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Novel 1-(1-benzoylpiperidin-4-yl)methanamine derivatives with high
affinity and selectivity for serotonin 5-HT1A receptors
were obtained and tested in four functional assays: ERK1/2 phosphorylation,
adenylyl cyclase inhibition, calcium mobilization, and β-arrestin
recruitment. Compounds 44 and 56 (2-methylaminophenoxyethyl
and 2-(1H-indol-4-yloxy)ethyl derivatives, respectively)
were selected as biased agonists with highly differential “signaling
fingerprints” that translated into distinct in vivo profiles. In vitro, 44 showed biased
agonism for ERK1/2 phosphorylation and, in vivo,
it preferentially exerted an antidepressant-like effect in the Porsolt
forced swimming test in rats. In contrast, compound 56 exhibited a first-in-class profile: it preferentially and potently
activated β-arrestin recruitment in vitro and
potently elicited lower lip retraction in vivo, a
component of “serotonergic syndrome”. Both compounds
showed promising developability properties. The presented 5-HT1A receptor-biased agonists, preferentially targeting various
signaling pathways, have the potential to become drug candidates for
distinct central nervous system pathologies and possessing accentuated
therapeutic activity and reduced side effects.
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Affiliation(s)
- Joanna Sniecikowska
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Monika Gluch-Lutwin
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Adam Bucki
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Anna Więckowska
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Agata Siwek
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | | | - Anna Partyka
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Daria Wilczyńska
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Karolina Pytka
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Gniewomir Latacz
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | | | - Elżbieta Wyska
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Anna Wesołowska
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | - Maciej Pawłowski
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
| | | | - Marcin Kolaczkowski
- Faculty of Pharmacy, Jagiellonian University Medical College, 9 Medyczna Street, 30-688 Kraków, Poland
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12
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Depoortere R, Johnston T, Fox S, Brotchie J, Newman-Tancredi A. The selective 5-HT1A receptor agonist, NLX-112, exerts anti-dyskinetic effects in MPTP-treated macaques. Parkinsonism Relat Disord 2020; 78:151-157. [DOI: 10.1016/j.parkreldis.2020.08.009] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Revised: 07/27/2020] [Accepted: 08/07/2020] [Indexed: 12/18/2022]
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13
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Fukumoto K, Fogaça MV, Liu RJ, Duman CH, Li XY, Chaki S, Duman RS. Medial PFC AMPA receptor and BDNF signaling are required for the rapid and sustained antidepressant-like effects of 5-HT 1A receptor stimulation. Neuropsychopharmacology 2020; 45:1725-1734. [PMID: 32396921 PMCID: PMC7419563 DOI: 10.1038/s41386-020-0705-0] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/08/2019] [Revised: 04/26/2020] [Accepted: 05/05/2020] [Indexed: 12/28/2022]
Abstract
We previously reported that the serotonergic system is important for the antidepressant-like effects of ketamine, a non-competitive N-methyl-D-aspartate receptor antagonist, which produces rapid and long-lasting antidepressant effects in patients with major depressive disorder (MDD). In particular, selective stimulation of the 5-HT1A receptor in the medial prefrontal cortex (mPFC), as opposed to the somatic 5-HT1A autoreceptor, has been shown to play a critical role in the antidepressant-like actions of ketamine. However, the detailed mechanisms underlying mPFC 5-HT1A receptor-mediated antidepressant-like effects are not fully understood. Here we examined the involvement of the glutamate AMPA receptor and brain-derived neurotrophic factor (BDNF) in the antidepressant-like effects of 5-HT1A receptor activation in the mPFC. The results show that intra-mPFC infusion of the 5-HT1A receptor agonist 8-OH-DPAT induces rapid and long-lasting antidepressant-like effects in the forced swim, novelty-suppressed feeding, female urine sniffing, and chronic unpredictable stress tests. In addition, the results demonstrate that the antidepressant-like effects of intra-mPFC infusion of 8-OH-DPAT are blocked by co-infusion of an AMPA receptor antagonist or an anti-BDNF neutralizing antibody. In addition, mPFC infusion of 8-OH-DPAT increased the phosphorylation of signaling proteins downstream of BDNF, including mTOR, ERK, 4EBP1, and p70S6K. Finally, selective stimulation of the 5-HT1A receptor increased levels of synaptic proteins and synaptic function in the mPFC. Collectively, these results indicate that selective stimulation of 5-HT1A receptor in the mPFC exerts rapid and sustained antidepressant-like effects via activation of AMPA receptor/BDNF/mTOR signaling in mice, which subsequently increase synaptic function in the mPFC, and provide evidence for the 5-HT1A receptor as a target for the treatment of MDD.
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Affiliation(s)
- Kenichi Fukumoto
- Departments of Psychiatry and Neurosciences, Yale University School of Medicine, 34 Park Street, New Haven, CT, 06520, USA. .,Research Headquarters, Taisho Pharmaceutical Co., Ltd., 1-403 Yoshino-cho, Kita-ku, Saitama, Saitama, 331-9530, Japan.
| | - Manoela V. Fogaça
- grid.47100.320000000419368710Departments of Psychiatry and Neurosciences, Yale University School of Medicine, 34 Park Street, New Haven, CT 06520 USA
| | - Rong-Jian Liu
- grid.47100.320000000419368710Departments of Psychiatry and Neurosciences, Yale University School of Medicine, 34 Park Street, New Haven, CT 06520 USA
| | - Catharine H. Duman
- grid.47100.320000000419368710Departments of Psychiatry and Neurosciences, Yale University School of Medicine, 34 Park Street, New Haven, CT 06520 USA
| | - Xiao-Yuan Li
- grid.47100.320000000419368710Departments of Psychiatry and Neurosciences, Yale University School of Medicine, 34 Park Street, New Haven, CT 06520 USA
| | - Shigeyuki Chaki
- grid.419836.10000 0001 2162 3360Research Headquarters, Taisho Pharmaceutical Co., Ltd., 1-403 Yoshino-cho, Kita-ku, Saitama, Saitama 331-9530 Japan
| | - Ronald S. Duman
- grid.47100.320000000419368710Departments of Psychiatry and Neurosciences, Yale University School of Medicine, 34 Park Street, New Haven, CT 06520 USA
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14
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Partyka A, Zagórska A, Kotańska M, Walczak M, Jastrzębska-Więsek M, Knutelska J, Bednarski M, Głuch-Lutwin M, Mordyl B, Janiszewska P, Wesołowska A. Antidepressant-like activity and safety profile evaluation of 1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione derivatives as 5-HT1A receptor partial agonists. PLoS One 2020; 15:e0237196. [PMID: 32764777 DOI: 10.1371/journal.pone.0237196] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Accepted: 07/21/2020] [Indexed: 01/27/2023] Open
Abstract
Current antidepressant therapy has several disadvantages related to the properties of antidepressants. Considering their unfavourable features, the process of searching for new antidepressant drugs with better safety and tolerability requires consistent efforts and many complementary studies. Serotonin 5-HT1A receptor is considered as an interesting target of antidepressant therapy. In the present study, the intrinsic activity at different signaling pathways coupled to serotonin 5-HT1A receptor, antidepressant-like and pharmacokinetic properties, and the safety profile of two novel imidazopurine-2,4-dione derivatives, namely compounds AZ-853 (8-(4-(4-(2-fluorophenyl)piperazin-1-yl)butyl)-1,3-dimethyl-1H- imidazo[2,1-f]purine-2,4(3H,8H)-dione) and AZ-861 (1,3-dimethyl-8-(4-(4-(3-(trifluoromethyl)phenyl)piperazin-1-yl)butyl)-1H-imidazo[2,1-f]purine-2,4(3H,8H)-dione), were studied in animal models through in vitro and in vivo experiments. We demonstrated that AZ-853 and AZ-861, which structurally differ by one substituent and its placement in the phenyl ring, showed varied functional, pharmacological, and pharmacokinetic properties as well as side effect profiles. AZ-861 exhibited stronger agonistic action in all functional assays. After acute and repeated administration in mice, both compounds showed antidepressant-like activity in the forced swim test, which was partially mediated by 5-HT1A receptor activation. AZ-853 showed a more potent antidepressant-like effect, presumably due to its better penetration into brain structures. Both compounds did not show anticholinergic properties, but after repeated administration, they induced weak sedation and lipid metabolism disturbances without affecting serum glucose level. The stronger α1-adrenolytic effect of AZ-853 is responsible for decreased systolic blood pressure, and in contrast to AZ-861, AZ-853 induced weight gain in mice. The interesting comparative pharmacological profiles of AZ-853 and AZ-861 encourage to conduct further experiments to fully understand their mechanisms and differences in action.
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15
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Lewis MW, Jones RT, Davis MT. Exploring the impact of trauma type and extent of exposure on posttraumatic alterations in 5-HT1A expression. Transl Psychiatry 2020; 10:237. [PMID: 32678079 PMCID: PMC7366706 DOI: 10.1038/s41398-020-00915-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 06/15/2020] [Accepted: 06/23/2020] [Indexed: 12/12/2022] Open
Abstract
The long-term behavioral, psychological, and neurobiological effects of exposure to potentially traumatic events vary within the human population. Studies conducted on trauma-exposed human subjects suggest that differences in trauma type and extent of exposure combine to affect development, maintenance, and treatment of a variety of psychiatric syndromes. The serotonin 1-A receptor (5-HT1A) is an inhibitory G protein-coupled serotonin receptor encoded by the HTR1A gene that plays a role in regulating serotonin release, physiological stress responding, and emotional behavior. Studies from the preclinical and human literature suggest that dysfunctional expression of 5-HT1A is associated with a multitude of psychiatric symptoms commonly seen in trauma-exposed individuals. Here, we synthesize the literature, including numerous preclinical studies, examining differences in alterations in 5-HT1A expression following trauma exposure. Collectively, these findings suggest that the impact of trauma exposure on 5-HT1A expression is dependent, in part, on trauma type and extent of exposure. Furthermore, preclinical and human studies suggest that this observation likely applies to additional molecular targets and may help explain variation in trauma-induced changes in behavior and treatment responsivity. In order to understand the neurobiological impact of trauma, including the impact on 5-HT1A expression, it is crucial to consider both trauma type and extent of exposure.
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16
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Sharp T, Barnes NM. Central 5-HT receptors and their function; present and future. Neuropharmacology 2020; 177:108155. [PMID: 32522572 DOI: 10.1016/j.neuropharm.2020.108155] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 05/19/2020] [Accepted: 05/20/2020] [Indexed: 12/13/2022]
Abstract
Since our review of central 5-HT receptors and their function twenty years ago, no new 5-HT receptor has been discovered and there is little evidence that this situation will change in the near future. Nevertheless, over this time significant progress has been made in our understanding of the properties of these receptors and in the clinical translation of this information, and some of these developments are highlighted herein. Such highlights include extensive mapping of 5-HT receptors in both animal and human brain, culminating in readily-accessible brain atlases of 5-HT receptor distribution, as well as emerging data on how 5-HT receptors are distributed within complex neural circuits. Also, a range of important pharmacological and genetic tools have been developed that allow selective 5-HT receptor manipulation, in cells through to whole organism models. Moreover, unexpected complexity in 5-HT receptor function has been identified including agonist-dependent signalling that goes beyond the pharmacology of canonical 5-HT receptor signalling pathways set down in the 1980s and 1990s. This new knowledge of 5-HT signalling has been extended by the discovery of combined signalling of 5-HT and co-released neurotransmitters, especially glutamate. Another important advance has been the progression of a large number of 5-HT ligands through to experimental medicine studies and clinical trials, and some such agents have already become prescribed therapeutic drugs. Much more needs to be discovered and understood by 5-HT neuropharmacologists, not least how the diverse signalling effects of so many 5-HT receptor types interact with complex neural circuits to generate neurophysiological changes which ultimately lead to altered cognitions and behaviour. This article is part of the special issue entitled 'Serotonin Research: Crossing Scales and Boundaries'.
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Affiliation(s)
- Trevor Sharp
- University of Oxford, Department of Pharmacology, Mansfield Road, Oxford, OX1 3QT, UK.
| | - Nicholas M Barnes
- Institute of Clinical Sciences, University of Birmingham, Birmingham, B15 2TT, UK
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De Deurwaerdère P, Bharatiya R, Chagraoui A, Di Giovanni G. Constitutive activity of 5-HT receptors: Factual analysis. Neuropharmacology 2020; 168:107967. [DOI: 10.1016/j.neuropharm.2020.107967] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2019] [Revised: 12/26/2019] [Accepted: 01/12/2020] [Indexed: 12/16/2022]
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18
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Tulver K, Bachmann M, Vaht M, Harro J, Bachmann T. Effects of HTR1A rs6295 polymorphism on emotional attentional blink. Acta Neurobiol Exp (Wars) 2020. [DOI: 10.21307/ane-2020-036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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19
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Chen Q, Hao J. Protein Activation in Drug Discovery - Part-II. Curr Top Med Chem 2019; 19:2377. [PMID: 31833461 DOI: 10.2174/156802661926191114102544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Qi Chen
- Discovery Chemistry Research and Technologies Lilly Research Laboratory Eli Lilly and Company Lilly Corporate Center Indianapolis, IN 46285, United States
| | - Junliang Hao
- Discovery Chemistry Research and Technologies Lilly Research Laboratory Eli Lilly and Company Lilly Corporate Center Indianapolis, IN 46285, United States
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