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Albert PR, Vahid-Ansari F. The 5-HT1A receptor: Signaling to behavior. Biochimie 2019; 161:34-45. [DOI: 10.1016/j.biochi.2018.10.015] [Citation(s) in RCA: 73] [Impact Index Per Article: 14.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2018] [Accepted: 10/23/2018] [Indexed: 02/06/2023]
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Albert PR, Le François B, Vahid-Ansari F. Genetic, epigenetic and posttranscriptional mechanisms for treatment of major depression: the 5-HT1A receptor gene as a paradigm. J Psychiatry Neurosci 2019; 44:164-176. [PMID: 30807072 PMCID: PMC6488484 DOI: 10.1503/jpn.180209] [Citation(s) in RCA: 28] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Revised: 12/10/2018] [Accepted: 12/21/2018] [Indexed: 02/07/2023] Open
Abstract
Major depression and anxiety are highly prevalent and involve chronic dysregulation of serotonin, but they remain poorly understood. Here, we review novel transcriptional (genetic, epigenetic) and posttranscriptional (microRNA, alternative splicing) mechanisms implicated in mental illness, focusing on a key serotonin-related regulator, the serotonin 1A (5-HT1A) receptor. Functional single-nucleotide polymorphisms and stress-induced DNA methylation of the 5-HT1A promoter converge to differentially alter pre- and postsynaptic 5-HT1A receptor expression associated with major depression and reduced therapeutic response to serotonergic antidepressants. Major depression is also associated with altered levels of splice factors and microRNA, posttranscriptional mechanisms that regulate RNA stability. The human 5-HT1A 3′-untranslated region is alternatively spliced, removing microRNA sites and increasing 5-HT1A expression, which is reduced in major depression and may be genotype-dependent. Thus, the 5-HT1A receptor gene illustrates the convergence of genetic, epigenetic and posttranscriptional mechanisms in gene expression, neurodevelopment and neuroplasticity, and major depression. Understanding gene regulatory mechanisms could enhance the detection, categorization and personalized treatment of major depression.
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Affiliation(s)
- Paul R. Albert
- From the Department of Neuroscience, Ottawa Hospital Research Institute, UOttawa Brain and Mind Research Institute, Ottawa, Ont., Canada
| | - Brice Le François
- From the Department of Neuroscience, Ottawa Hospital Research Institute, UOttawa Brain and Mind Research Institute, Ottawa, Ont., Canada
| | - Faranak Vahid-Ansari
- From the Department of Neuroscience, Ottawa Hospital Research Institute, UOttawa Brain and Mind Research Institute, Ottawa, Ont., Canada
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Vahid-Ansari F, Zhang M, Zahrai A, Albert PR. Overcoming Resistance to Selective Serotonin Reuptake Inhibitors: Targeting Serotonin, Serotonin-1A Receptors and Adult Neuroplasticity. Front Neurosci 2019; 13:404. [PMID: 31114473 PMCID: PMC6502905 DOI: 10.3389/fnins.2019.00404] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2018] [Accepted: 04/09/2019] [Indexed: 12/14/2022] Open
Abstract
Major depressive disorder (MDD) is the most prevalent mental illness contributing to global disease burden. Selective serotonin (5-HT) reuptake inhibitors (SSRIs) are the first-line treatment for MDD, but are only fully effective in 30% of patients and require weeks before improvement may be seen. About 30% of SSRI-resistant patients may respond to augmentation or switching to another antidepressant, often selected by trial and error. Hence a better understanding of the causes of SSRI resistance is needed to provide models for optimizing treatment. Since SSRIs enhance 5-HT, in this review we discuss new findings on the circuitry, development and function of the 5-HT system in modulating behavior, and on how 5-HT neuronal activity is regulated. We focus on the 5-HT1A autoreceptor, which controls 5-HT activity, and the 5-HT1A heteroreceptor that mediates 5-HT actions. A series of mice models now implicate increased levels of 5-HT1A autoreceptors in SSRI resistance, and the requirement of hippocampal 5-HT1A heteroreceptor for neurogenic and behavioral response to SSRIs. We also present clinical data that show promise for identifying biomarkers of 5-HT activity, 5-HT1A regulation and regional changes in brain activity in MDD patients that may provide biomarkers for tailored interventions to overcome or bypass resistance to SSRI treatment. We identify a series of potential strategies including inhibiting 5-HT auto-inhibition, stimulating 5-HT1A heteroreceptors, other monoamine systems, or cortical stimulation to overcome SSRI resistance.
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Affiliation(s)
| | | | | | - Paul R. Albert
- Brain and Mind Research Institute, Ottawa Hospital Research Institute (Neuroscience), University of Ottawa, Ottawa, ON, Canada
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Abstract
Abnormalities of glutamatergic transmission are implicated in neuropsychiatric disorders. Among the glutamate receptors, metabotropic (mGlu) 2/3 receptors have recently gained much attention as molecular targets for the treatment of several neuropsychiatric disorders including depression and anxiety. Both orthosteric and allosteric antagonists of mGlu2/3 receptors have been synthesized, and their therapeutic potential has been examined. These research activities have demonstrated the promise of mGlu2/3 receptor antagonists as potential treatment agents for the above-mentioned neuropsychiatric disorders. In particular, it has been considered that the antidepressant effects of mGlu2/3 receptor antagonists are worthy of pursuing, since the antidepressant profiles as well as synaptic/neural mechanisms involved in the actions of mGlu2/3 receptor antagonists are similar to those of ketamine, which has been demonstrated to show potent, rapid and sustained efficacy in patients with depression, even those resistant to the conventionally prescribed antidepressants. In this chapter, the general pharmacology of mGlu2/3 receptor antagonists and their therapeutic potential are reviewed. In particular, I focus on the usefulness of mGlu2/3 receptor antagonists as novel antidepressants, in comparison with ketamine.
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Zhang J, He ZX, Wang LM, Yuan W, Li LF, Hou WJ, Yang Y, Guo QQ, Zhang XN, Cai WQ, An SC, Tai FD. Voluntary Wheel Running Reverses Deficits in Social Behavior Induced by Chronic Social Defeat Stress in Mice: Involvement of the Dopamine System. Front Neurosci 2019; 13:256. [PMID: 31019446 PMCID: PMC6458241 DOI: 10.3389/fnins.2019.00256] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 03/05/2019] [Indexed: 01/04/2023] Open
Abstract
Voluntary exercise has been reported to have a therapeutic effect on many psychiatric disorders and social stress is known to impair social interaction. However, whether voluntary exercise could reverse deficits in social behaviors induced by chronic social defeat stress (CSDS) and the underlying mechanism remain unclear. The present study shows CSDS impaired social preference and induced social interaction deficiency in susceptible mice. Voluntary wheel running (VWR) reversed these effects. In addition, CSDS decreased the levels of tyrosine hydroxylase in the ventral tegmental area and the D2 receptor (D2R) in the nucleus accumbens (NAc) shell. These changes can be recovered by VWR. Furthermore, the recovery effect of VWR on deficits in social behaviors in CSDS mice was blocked by the microinjection of D2R antagonist raclopride into the NAc shell. Thus, these results suggest that the mechanism underlying CSDS-induced social interaction disorder might be caused by an alteration of the dopamine system. VWR may be a novel means to treat CSDS-induced deficits in social behaviors via modifying the dopamine system.
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Affiliation(s)
- Jing Zhang
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Zhi-Xiong He
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Li-Min Wang
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Wei Yuan
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Lai-Fu Li
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Wen-Juan Hou
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Yang Yang
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Qian-Qian Guo
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Xue-Ni Zhang
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Wen-Qi Cai
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Shu-Cheng An
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an, China
| | - Fa-Dao Tai
- Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi'an, China
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Chaki S, Koike H, Fukumoto K. Targeting of Metabotropic Glutamate Receptors for the Development of Novel Antidepressants. CHRONIC STRESS 2019; 3:2470547019837712. [PMID: 32500107 PMCID: PMC7243201 DOI: 10.1177/2470547019837712] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/07/2019] [Accepted: 02/21/2019] [Indexed: 12/22/2022]
Abstract
Since discovering that ketamine has robust antidepressant effects, the
glutamatergic system has been proposed as an attractive target for the
development of novel antidepressants. Among the glutamatergic system,
metabotropic glutamate (mGlu) receptors are of interest because mGlu receptors
play modulatory roles in glutamatergic transmission, consequently, agents acting
on mGlu receptors might not exert the adverse effects associated with ketamine.
mGlu receptors have eight subtypes that are classified into three groups, and
the roles of each mGlu receptor subtype in depression are being investigated. To
date, the potential use of mGlu5 receptor antagonists and mGlu2/3 receptor
antagonists as antidepressants has been actively investigated, and the
mechanisms underlying these antidepressant effects are being delineated.
Although the outcomes of clinical trials using an mGlu5 receptor negative
allosteric modulator and an mGlu2/3 receptor negative allosteric modulator have
not been encouraging, these trials have been inconclusive, and additional trials
using other compounds with more appropriate profiles are needed. In contrast,
the roles of group III mGlu receptors have not yet been fully elucidated because
of a lack of suitable pharmacological tools. Nonetheless, investigations of the
use of mGlu4 and mGlu7 receptors as drug targets for the development of
antidepressants have been ongoing, and some interesting evidence has been
obtained.
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Role of Serotonergic System in the Antidepressant Actions of mGlu2/3 Receptor Antagonists: Similarity to Ketamine. Int J Mol Sci 2019; 20:ijms20061270. [PMID: 30871246 PMCID: PMC6470808 DOI: 10.3390/ijms20061270] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2019] [Revised: 03/06/2019] [Accepted: 03/08/2019] [Indexed: 12/28/2022] Open
Abstract
Numerous studies have demonstrated the antidepressant effects of group II metabotropic glutamate (mGlu2/3) receptor antagonists in various rodent models. Importantly, it has been shown that the antidepressant effects of mGlu2/3 receptor antagonists in rodent models are similar to those of ketamine, which exerts rapid and long-lasting antidepressant effects in patients with major depressive disorders, including patients with treatment-resistant depression. In addition, the synaptic mechanisms underlying the effects of mGlu2/3 receptor antagonists are reported to be similar to those underlying the effects of ketamine. The roles of the serotonergic system in the antidepressant effects of mGlu2/3 receptor antagonists have recently been demonstrated. Moreover, it was investigated how mGlu2/3 receptor antagonists interact with the serotonergic system to exert antidepressant effects. Notably, the same neural mechanisms as those underlying the effects of ketamine may be involved in the antidepressant actions of the mGlu2/3 receptor antagonists. In this review, we shall summarize the antidepressant potential of mGlu2/3 receptor antagonists and their mechanisms of action in comparison with those of ketamine. In particular, we shall focus on the roles of the serotonergic system in the antidepressant actions of mGlu2/3 receptor antagonists.
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Sniecikowska J, Gluch-Lutwin M, Bucki A, Więckowska A, Siwek A, Jastrzebska-Wiesek M, Partyka A, Wilczyńska D, Pytka K, Pociecha K, Cios A, Wyska E, Wesołowska A, Pawłowski M, Varney MA, Newman-Tancredi A, Kolaczkowski M. Novel Aryloxyethyl Derivatives of 1-(1-Benzoylpiperidin-4-yl)methanamine as the Extracellular Regulated Kinases 1/2 (ERK1/2) Phosphorylation-Preferring Serotonin 5-HT 1A Receptor-Biased Agonists with Robust Antidepressant-like Activity. J Med Chem 2019; 62:2750-2771. [PMID: 30721053 DOI: 10.1021/acs.jmedchem.9b00062] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Novel 1-(1-benzoylpiperidin-4-yl)methanamine derivatives were designed as "biased agonists" of serotonin 5-HT1A receptors. The compounds were tested in signal transduction assays (ERK1/2 phosphorylation, cAMP inhibition, Ca2+ mobilization, and β-arrestin recruitment) which identified ERK1/2 phosphorylation-preferring aryloxyethyl derivatives. The novel series showed high 5-HT1A receptor affinity, >1000-fold selectivity versus noradrenergic α1, dopamine D2, serotonin 5-HT2A, histamine H1, and muscarinic M1 receptors, and favorable druglike properties (CNS-MPO, Fsp3, LELP). The lead structure, (3-chloro-4-fluorophenyl)(4-fluoro-4-(((2-(pyridin-2-yloxy)ethyl)amino)methyl)piperidin-1-yl)methanone (17, NLX-204), displayed high selectivity in the SafetyScreen44 panel (including hERG channel), high solubility, metabolic stability, and Caco-2 penetration and did not block CYP3A4, CYP2D6 isoenzymes, or P-glycoprotein. Preliminary in vivo studies confirmed its promising pharmacokinetic profile. 17 also robustly stimulated ERK1/2 phosphorylation in rat cortex and showed highly potent (MED = 0.16 mg/kg) and efficacious antidepressant-like activity, totally eliminating immobility in the rat Porsolt test. These data suggest that the present 5-HT1A receptor-biased agonists could constitute promising antidepressant drug candidates.
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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
| | - Krzysztof Pociecha
- Faculty of Pharmacy , Jagiellonian University Medical College , 9 Medyczna Street , 30-688 Kraków , Poland
| | - Agnieszka Cios
- 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
| | - Mark A Varney
- Neurolixis Inc. , 34145 Pacific Coast Highway #504 , Dana Point , 92629 California , United States
| | - Adrian Newman-Tancredi
- Neurolixis Inc. , 34145 Pacific Coast Highway #504 , Dana Point , 92629 California , United States
| | - Marcin Kolaczkowski
- Faculty of Pharmacy , Jagiellonian University Medical College , 9 Medyczna Street , 30-688 Kraków , Poland
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Wang L, Zhu Z, Hou W, Zhang X, He Z, Yuan W, Yang Y, Zhang S, Jia R, Tai F. Serotonin Signaling Trough Prelimbic 5-HT1A Receptors Modulates CSDS-Induced Behavioral Changes in Adult Female Voles. Int J Neuropsychopharmacol 2018; 22:208-220. [PMID: 30445535 PMCID: PMC6403097 DOI: 10.1093/ijnp/pyy093] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2018] [Revised: 11/02/2018] [Accepted: 11/14/2018] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Most previous studies have focused on the effects of social defeat in male juvenile individuals. Whether chronic social defeat stress in adulthood affects female emotion and the underlying mechanisms remains unclear. METHODS Using highly aggressive adult female mandarin voles (Microtus mandarinus), the present study aimed to determine the effects of chronic social defeat stress on anxiety- and depression-like behaviors in adult female rodents and investigate the neurobiological mechanisms underlying these effects. RESULTS Exposure of adult female voles to social defeat stress for 14 days reduced the time spent in the central area of the open field test and in the open arms of the elevated plus maze and lengthened the immobility time in the tail suspension and forced swimming tests, indicating increased anxiety- and depression-like behaviors. Meanwhile, defeated voles exhibited increased neural activity in the prelimbic cortex of the medial prefrontal cortex. Furthermore, chronic social defeat stress reduced serotonin projections and levels of serotonin 1A receptors in the medial prefrontal cortex-prelimbic cortex. Intra-prelimbic cortex microinjections of the serotonin 1A receptor agonist 8-OH-DPAT reversed the alterations in emotional behaviors, whereas injections of the serotonin 1A receptor antagonist WAY-100635 into the prelimbic cortex of control voles increased the levels of anxiety- and depression-like behaviors. CONCLUSIONS Taken together, our results demonstrated that chronic social defeat stress increased anxiety- and depression-like behaviors in adult female voles, and these effects were mediated by the action of serotonin on the serotonin 1A receptors in the prelimbic cortex. The serotonin system may be a promising target to treat emotional disorders induced by chronic social defeat stress.
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Affiliation(s)
- Limin Wang
- College of Life Sciences, Shaanxi Normal University, Xi’an, Shaanxi, China
| | - Zhenxiang Zhu
- College of Life Sciences, Shaanxi Normal University, Xi’an, Shaanxi, China
| | - Wenjuan Hou
- College of Life Sciences, Shaanxi Normal University, Xi’an, Shaanxi, China
| | - Xueni Zhang
- College of Life Sciences, Shaanxi Normal University, Xi’an, Shaanxi, China
| | - Zhixiong He
- College of Life Sciences, Shaanxi Normal University, Xi’an, Shaanxi, China
| | - Wei Yuan
- College of Life Sciences, Shaanxi Normal University, Xi’an, Shaanxi, China
| | - Yang Yang
- College of Life Sciences, Shaanxi Normal University, Xi’an, Shaanxi, China
| | - Siyi Zhang
- College of Life Sciences, Shaanxi Normal University, Xi’an, Shaanxi, China
| | - Rui Jia
- College of Life Sciences, Shaanxi Normal University, Xi’an, Shaanxi, China
| | - Fadao Tai
- College of Life Sciences, Shaanxi Normal University, Xi’an, Shaanxi, China,Correspondence: Fadao Tai, PhD, Institute of Brain and Behavioral Sciences, College of Life Sciences, Shaanxi Normal University, Xi’an, Shaanxi 710062, China ()
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Astrocytes activation contributes to the antidepressant-like effect of ketamine but not scopolamine. Pharmacol Biochem Behav 2018; 170:1-8. [DOI: 10.1016/j.pbb.2018.05.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Revised: 04/25/2018] [Accepted: 05/02/2018] [Indexed: 12/15/2022]
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5-HT1A receptor stimulation in the medial prefrontal cortex mediates the antidepressant effects of mGlu2/3 receptor antagonist in mice. Neuropharmacology 2018; 137:96-103. [DOI: 10.1016/j.neuropharm.2018.05.001] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2018] [Revised: 04/26/2018] [Accepted: 05/01/2018] [Indexed: 12/11/2022]
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