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Popova NK, Tsybko AS, Naumenko VS. The Implication of 5-HT Receptor Family Members in Aggression, Depression and Suicide: Similarity and Difference. Int J Mol Sci 2022; 23:ijms23158814. [PMID: 35955946 PMCID: PMC9369404 DOI: 10.3390/ijms23158814] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2022] [Revised: 07/21/2022] [Accepted: 08/06/2022] [Indexed: 11/16/2022] Open
Abstract
Being different multifactorial forms of psychopathology, aggression, depression and suicidal behavior, which is considered to be violent aggression directed against the self, have principal neurobiological links: preclinical and clinical evidence associates depression, aggression and suicidal behavior with dysregulation in central serotonergic (5-HT) neurotransmission. The implication of different types of 5-HT receptors in the genetic and epigenetic mechanisms of aggression, depression and suicidality has been well recognized. In this review, we consider and compare the orchestra of 5-HT receptors involved in these severe psychopathologies. Specifically, it concentrates on the role of 5-HT1A, 5-HT1B, 5-HT2A, 5-HT2B, 5-HT2C, 5-HT3 and 5-HT7 receptors in the mechanisms underlying the predisposition to aggression, depression and suicidal behavior. The review provides converging lines of evidence that: (1) depression-related 5-HT receptors include those receptors with pro-depressive properties (5-HT2A, 5-HT3 and 5-HT7) as well as those providing an antidepressant effect (5-HT1A, 5-HT1B, 5-HT2C subtypes). (2) Aggression-related 5-HT receptors are identical to depression-related 5-HT receptors with the exception of 5-HT7 receptors. Activation of 5-HT1A, 5-HT1B, 5-HT2A, 5-HT2C receptors attenuate aggressiveness, whereas agonists of 5-HT3 intensify aggressive behavior.
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The role of the serotonergic system at the interface of aggression and suicide. Neuroscience 2013; 236:160-85. [PMID: 23333677 DOI: 10.1016/j.neuroscience.2013.01.015] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Revised: 01/01/2013] [Accepted: 01/05/2013] [Indexed: 02/07/2023]
Abstract
Alterations in serotonin (5-HT) neurochemistry have been implicated in the aetiology of all major neuropsychiatric disorders, ranging from schizophrenia to mood and anxiety-spectrum disorders. This review will focus on the multifaceted implications of 5-HT-ergic dysfunctions in the pathophysiology of aggressive and suicidal behaviours. After a brief overview of the anatomical distribution of the 5-HT-ergic system in the key brain areas that govern aggression and suicidal behaviours, the implication of 5-HT markers (5-HT receptors, transporter as well as synthetic and metabolic enzymes) in these conditions is discussed. In this regard, particular emphasis is placed on the integration of pharmacological and genetic evidence from animal studies with the findings of human experimental and genetic association studies. Traditional views postulated an inverse relationship between 5-HT and aggression and suicidal behaviours; however, ample evidence has shown that this perspective may be overly simplistic, and that such pathological manifestations may reflect alterations in 5-HT homoeostasis due to the interaction of genetic, environmental and gender-related factors, particularly during early critical developmental stages. The development of animal models that may capture the complexity of such interactions promises to afford a powerful tool to elucidate the pathophysiology of impulsive aggression and suicidability, and identify new effective therapies for these conditions.
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Souza RP, De Luca V, Manchia M, Kennedy JL. Are serotonin 3A and 3B receptor genes associated with suicidal behavior in schizophrenia subjects? Neurosci Lett 2010; 489:137-41. [PMID: 21184810 DOI: 10.1016/j.neulet.2010.11.079] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2010] [Revised: 05/13/2010] [Accepted: 11/30/2010] [Indexed: 01/16/2023]
Abstract
Suicide is a major contributor to the morbidity and mortality of schizophrenia, accounting for approximately 10% of deaths in these patients. Genetic factors have been reported to modulate the risk for suicide, although the precise mechanism and magnitude of the genetic contribution are unknown. Further, suicide attempters present abnormalities in the serotonergic system. We evaluated whether genetic variants in the serotonin receptors HTR3A (rs897692, rs1150226, rs1176724, rs2276302, rs3737457, rs897687 and rs1176713) and HTR3B (rs3758987, rs10502180, rs11606194, rs17116121, rs1176744, rs17116138, rs2276307, rs3782025 and rs1176761) were susceptibility components for suicidal behavior in 154 Caucasians schizophrenia subjects (20.1% of suicide attempters). In a second step, we compared haplotype and gene-gene interaction approaches because both genes are located in the chromosome 11q23 approximately 28Kbp apart. We did not observe allelic or genotypic associations. Six haplotypes were nominally significant associated with suicide. Gene-gene interaction using Helix Tree software showed two nominally significant interactions reproduced by haplotype association. Likewise, haplotypes composed by the markers included in the best multidimensional reduction three-locus model were nominally significant. Our results suggest that HTR3A and HTR3B polymorphisms may not play a major role in the susceptibility for suicidal behavior in schizophrenia subjects. Moreover, gene-gene interaction and haplotype association may have consistent results for genes located in the same chromosome.
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Affiliation(s)
- Renan P Souza
- Neurogenetics Section, Neuroscience Department, Centre for Addiction and Mental Health, Toronto, ON, Canada
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Pompili M, Serafini G, Innamorati M, Dominici G, Ferracuti S, Kotzalidis GD, Serra G, Girardi P, Janiri L, Tatarelli R, Sher L, Lester D. Suicidal behavior and alcohol abuse. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2010; 7:1392-431. [PMID: 20617037 PMCID: PMC2872355 DOI: 10.3390/ijerph7041392] [Citation(s) in RCA: 227] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2010] [Revised: 03/15/2010] [Accepted: 03/19/2010] [Indexed: 12/22/2022]
Abstract
Suicide is an escalating public health problem, and alcohol use has consistently been implicated in the precipitation of suicidal behavior. Alcohol abuse may lead to suicidality through disinhibition, impulsiveness and impaired judgment, but it may also be used as a means to ease the distress associated with committing an act of suicide. We reviewed evidence of the relationship between alcohol use and suicide through a search of MedLine and PsychInfo electronic databases. Multiple genetically-related intermediate phenotypes might influence the relationship between alcohol and suicide. Psychiatric disorders, including psychosis, mood disorders and anxiety disorders, as well as susceptibility to stress, might increase the risk of suicidal behavior, but may also have reciprocal influences with alcohol drinking patterns. Increased suicide risk may be heralded by social withdrawal, breakdown of social bonds, and social marginalization, which are common outcomes of untreated alcohol abuse and dependence. People with alcohol dependence or depression should be screened for other psychiatric symptoms and for suicidality. Programs for suicide prevention must take into account drinking habits and should reinforce healthy behavioral patterns.
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Affiliation(s)
- Maurizio Pompili
- Department of Neuroscience, Mental Health and Sensory Functions, Suicide Prevention Center, Sant’Andrea Hospital, Sapienza University of Rome, Rome 00189, Italy; E-Mails:
(G.S.);
(M.I.);
(G.D.);
(S.F.);
(G.D.K.);
(G.S.);
(P.G.);
(R.T.)
- McLean Hospital, Harvard Medical School, Belmont, MA 02478, USA
- Author to whom correspondence should be addressed; E-Mail:
or
; Tel. +39-06 33775675; Fax +39-0633775342
| | - Gianluca Serafini
- Department of Neuroscience, Mental Health and Sensory Functions, Suicide Prevention Center, Sant’Andrea Hospital, Sapienza University of Rome, Rome 00189, Italy; E-Mails:
(G.S.);
(M.I.);
(G.D.);
(S.F.);
(G.D.K.);
(G.S.);
(P.G.);
(R.T.)
| | - Marco Innamorati
- Department of Neuroscience, Mental Health and Sensory Functions, Suicide Prevention Center, Sant’Andrea Hospital, Sapienza University of Rome, Rome 00189, Italy; E-Mails:
(G.S.);
(M.I.);
(G.D.);
(S.F.);
(G.D.K.);
(G.S.);
(P.G.);
(R.T.)
| | - Giovanni Dominici
- Department of Neuroscience, Mental Health and Sensory Functions, Suicide Prevention Center, Sant’Andrea Hospital, Sapienza University of Rome, Rome 00189, Italy; E-Mails:
(G.S.);
(M.I.);
(G.D.);
(S.F.);
(G.D.K.);
(G.S.);
(P.G.);
(R.T.)
| | - Stefano Ferracuti
- Department of Neuroscience, Mental Health and Sensory Functions, Suicide Prevention Center, Sant’Andrea Hospital, Sapienza University of Rome, Rome 00189, Italy; E-Mails:
(G.S.);
(M.I.);
(G.D.);
(S.F.);
(G.D.K.);
(G.S.);
(P.G.);
(R.T.)
| | - Giorgio D. Kotzalidis
- Department of Neuroscience, Mental Health and Sensory Functions, Suicide Prevention Center, Sant’Andrea Hospital, Sapienza University of Rome, Rome 00189, Italy; E-Mails:
(G.S.);
(M.I.);
(G.D.);
(S.F.);
(G.D.K.);
(G.S.);
(P.G.);
(R.T.)
| | - Giulia Serra
- Department of Neuroscience, Mental Health and Sensory Functions, Suicide Prevention Center, Sant’Andrea Hospital, Sapienza University of Rome, Rome 00189, Italy; E-Mails:
(G.S.);
(M.I.);
(G.D.);
(S.F.);
(G.D.K.);
(G.S.);
(P.G.);
(R.T.)
| | - Paolo Girardi
- Department of Neuroscience, Mental Health and Sensory Functions, Suicide Prevention Center, Sant’Andrea Hospital, Sapienza University of Rome, Rome 00189, Italy; E-Mails:
(G.S.);
(M.I.);
(G.D.);
(S.F.);
(G.D.K.);
(G.S.);
(P.G.);
(R.T.)
| | - Luigi Janiri
- Department of Psychiatry, Catholic University Medical School, Largo F. Vito 1, Rome 00168, Italy; E-Mail:
| | - Roberto Tatarelli
- Department of Neuroscience, Mental Health and Sensory Functions, Suicide Prevention Center, Sant’Andrea Hospital, Sapienza University of Rome, Rome 00189, Italy; E-Mails:
(G.S.);
(M.I.);
(G.D.);
(S.F.);
(G.D.K.);
(G.S.);
(P.G.);
(R.T.)
| | - Leo Sher
- Department of Psychiatry, Columbia University, New York, NY 10032, USA; E-Mail:
| | - David Lester
- The Richard Stockton College of New Jersey, Pomona, NJ 08240-0195, USA; E-Mail:
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Arango V, Underwood MD, Mann JJ. Postmortem findings in suicide victims. Implications for in vivo imaging studies. Ann N Y Acad Sci 1997; 836:269-87. [PMID: 9616804 DOI: 10.1111/j.1749-6632.1997.tb52365.x] [Citation(s) in RCA: 65] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Alterations in serotonergic and noradrenergic receptor binding in membrane homogenates from the brain of suicide victims suggest a biological substrate for the vulnerability to commit suicide. We and others have employed high-resolution quantitative autoradiography of full coronal sections of the prefrontal cortex to map the locus of maximal change in receptor binding. We found alterations in binding to the serotonin transporter, the 5-HT1A, and the 5-HT2A receptors primarily in the ventral and ventrolateral prefrontal cortex of suicide victims. Importantly, these changes are often modest in magnitude and anatomically restricted to one or two Brodmann areas. Furthermore, we have found that care in case selection is essential, because sex, age, drugs, and comorbid diagnoses contribute to receptor binding. The implications for in vivo imaging are considerable, directing the focus of such studies toward the ventrolateral prefrontal cortex. However, because ligands are limited, as is the resolution of current methods, including PET, automated analyses that produce statistical images, rather than manual selection of individual slices, will likely lack the ability to detect the discrete receptor changes found postmortem. Alternatively, the advantages of examining large numbers of subjects, imaging the entire brain, obtaining detailed clinical information in the living patient, and magnifying the changes with neuropharmacological challenges present a promising outlook for making major advances into the identification of brain abnormalities associated with suicide risk.
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Affiliation(s)
- V Arango
- Department of Neuroscience, New York State Psychiatric Institute, NY 10032, USA.
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