1
|
Kudryavtseva NN. Development of Mixed Anxiety/Depression-Like State as a Consequence of Chronic Anxiety: Review of Experimental Data. Curr Top Behav Neurosci 2021; 54:125-152. [PMID: 34622394 DOI: 10.1007/7854_2021_248] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The review presents experimental data considered from the point of view of dynamic changes in the brain neurochemistry, physiology, and behavior of animals during the development of mixed anxiety/depression-like disorder caused by chronic social stress from norm to severe psychopathology. Evidences are presented to support the hypothesis that chronic anxiety rather than social defeat stress is an etiological factor in depression. The consequences of chronic anxiety for human health and social life are discussed.
Collapse
Affiliation(s)
- Natalia N Kudryavtseva
- Neurogenetics of Social Behavior Sector, Neuropathology Modeling Laboratory, FRC Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia.
| |
Collapse
|
2
|
Smagin DA, Kovalenko IL, Galyamina AG, Belozertseva IV, Tamkovich NV, Baranov KO, Kudryavtseva NN. Chronic Lithium Treatment Affects Anxious Behaviors and theExpression of Serotonergic Genes in Midbrain Raphe Nuclei of Defeated Male Mice. Biomedicines 2021; 9:biomedicines9101293. [PMID: 34680410 PMCID: PMC8533389 DOI: 10.3390/biomedicines9101293] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 09/16/2021] [Accepted: 09/17/2021] [Indexed: 01/07/2023] Open
Abstract
There is experimental evidence that chronic social defeat stress is accompanied by the development of an anxiety, development of a depression-like state, and downregulation of serotonergic genes in midbrain raphe nuclei of male mice. Our study was aimed at investigating the effects of chronic lithium chloride (LiCl) administration on anxiety behavior and the expression of serotonergic genes in midbrain raphe nuclei of the affected mice. A pronounced anxiety-like state in male mice was induced by chronic social defeat stress in daily agonistic interactions. After 6 days of this stress, defeated mice were chronically treated with saline or LiCl (100 mg/kg, i.p., 2 weeks) during the continuing agonistic interactions. Anxiety was assessed by behavioral tests. RT-PCR was used to determine Tph2, Htr1a, Htr5b, and Slc6a4 mRNA expression. The results revealed anxiolytic-like effects of LiCl on social communication in the partition test and anxiogenic-like effects in both elevated plus-maze and social interaction tests. Chronic LiCl treatment upregulated serotonergic genes in midbrain raphe nuclei. Thus, LiCl effects depend on the treatment mode, psycho-emotional state of the animal, and experimental context (tests). It is assumed that increased expression of serotonergic genes is accompanied by serotonergic system activation and, as a side effect, by higher anxiety.
Collapse
Affiliation(s)
- Dmitry A. Smagin
- FRC Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia; (D.A.S.); (I.L.K.); (A.G.G.)
| | - Irina L. Kovalenko
- FRC Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia; (D.A.S.); (I.L.K.); (A.G.G.)
| | - Anna G. Galyamina
- FRC Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia; (D.A.S.); (I.L.K.); (A.G.G.)
| | - Irina V. Belozertseva
- Valdman Institute of Pharmacology, First Pavlov State Medical University of St. Petersburg, 197022 St. Petersburg, Russia;
| | | | - Konstantin O. Baranov
- Institute of Molecular and Cellular Biology, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia;
| | - Natalia N. Kudryavtseva
- FRC Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences, 630090 Novosibirsk, Russia; (D.A.S.); (I.L.K.); (A.G.G.)
- Pavlov Institute of Physiology, Russian Academy of Sciences, 188680 St. Petersburg, Russia
- Head of Neuropathology Modeling Laboratory, Institute of Cytology and Genetics SB RAS, pr. Ac. Lavrentjev, 10, 630090 Novosibirsk, Russia
- Correspondence: ; Tel.: +7-(383)-363-49-65
| |
Collapse
|
3
|
Smagin DA, Babenko VN, Redina OE, Kovalenko IL, Galyamina AG, Kudryavtseva NN. Reduced Expression of Slc Genes in the VTA and NAcc of Male Mice with Positive Fighting Experience. Genes (Basel) 2021; 12:genes12071099. [PMID: 34356115 PMCID: PMC8306410 DOI: 10.3390/genes12071099] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2021] [Revised: 06/27/2021] [Accepted: 07/16/2021] [Indexed: 12/28/2022] Open
Abstract
A range of several psychiatric medications targeting the activity of solute carrier (SLC) transporters have proved effective for treatment. Therefore, further research is needed to elucidate the expression profiles of the Slc genes, which may serve as markers of altered brain metabolic processes and neurotransmitter activities in psychoneurological disorders. We studied the Slc differentially expressed genes (DEGs) using transcriptomic profiles in the ventral tegmental area (VTA), nucleus accumbens (NAcc), and prefrontal cortex (PFC) of control and aggressive male mice with psychosis-like behavior induced by repeated experience of aggression accompanied with wins in daily agonistic interactions. The majority of the Slc DEGs were shown to have brain region-specific expression profiles. Most of these genes in the VTA and NAcc (12 of 17 and 25 of 26, respectively) were downregulated, which was not the case in the PFC (6 and 5, up- and downregulated, respectively). In the VTA and NAcc, altered expression was observed for the genes encoding the transporters of neurotransmitters as well as inorganic and organic ions, amino acids, metals, glucose, etc. This indicates an alteration in transport functions for many substrates, which can lead to the downregulation or even disruption of cellular and neurotransmitter processes in the VTA and NAcc, which are attributable to chronic stimulation of the reward systems induced by positive fighting experience. There is not a single Slc DEG common to all three brain regions. Our findings show that in male mice with repeated experience of aggression, altered activity of neurotransmitter systems leads to a restructuring of metabolic and neurotransmitter processes in a way specific for each brain region. We assume that the scoring of Slc DEGs by the largest instances of significant expression co-variation with other genes may outline a candidate for new prognostic drug targets. Thus, we propose that the Slc genes set may be treated as a sensitive genes marker scaffold in brain RNA-Seq studies.
Collapse
Affiliation(s)
- Dmitry A. Smagin
- Neuropathology Modeling Laboratory, The FRC Institute of Cytology and Genetics SB RAS, 630090 Novosibirsk, Russia; (D.A.S.); (V.N.B.); (O.E.R.); (I.L.K.); (A.G.G.)
- Neurogenetics of Social Behavior Sector, The FRC Institute of Cytology and Genetics SB RAS, 630090 Novosibirsk, Russia
| | - Vladimir N. Babenko
- Neuropathology Modeling Laboratory, The FRC Institute of Cytology and Genetics SB RAS, 630090 Novosibirsk, Russia; (D.A.S.); (V.N.B.); (O.E.R.); (I.L.K.); (A.G.G.)
| | - Olga E. Redina
- Neuropathology Modeling Laboratory, The FRC Institute of Cytology and Genetics SB RAS, 630090 Novosibirsk, Russia; (D.A.S.); (V.N.B.); (O.E.R.); (I.L.K.); (A.G.G.)
| | - Irina L. Kovalenko
- Neuropathology Modeling Laboratory, The FRC Institute of Cytology and Genetics SB RAS, 630090 Novosibirsk, Russia; (D.A.S.); (V.N.B.); (O.E.R.); (I.L.K.); (A.G.G.)
- Neurogenetics of Social Behavior Sector, The FRC Institute of Cytology and Genetics SB RAS, 630090 Novosibirsk, Russia
| | - Anna G. Galyamina
- Neuropathology Modeling Laboratory, The FRC Institute of Cytology and Genetics SB RAS, 630090 Novosibirsk, Russia; (D.A.S.); (V.N.B.); (O.E.R.); (I.L.K.); (A.G.G.)
- Neurogenetics of Social Behavior Sector, The FRC Institute of Cytology and Genetics SB RAS, 630090 Novosibirsk, Russia
| | - Natalia N. Kudryavtseva
- Neuropathology Modeling Laboratory, The FRC Institute of Cytology and Genetics SB RAS, 630090 Novosibirsk, Russia; (D.A.S.); (V.N.B.); (O.E.R.); (I.L.K.); (A.G.G.)
- Neurogenetics of Social Behavior Sector, The FRC Institute of Cytology and Genetics SB RAS, 630090 Novosibirsk, Russia
- Correspondence:
| |
Collapse
|
4
|
Demin KA, Smagin DA, Kovalenko IL, Strekalova T, Galstyan DS, Kolesnikova TO, De Abreu MS, Galyamina AG, Bashirzade A, Kalueff AV. CNS genomic profiling in the mouse chronic social stress model implicates a novel category of candidate genes integrating affective pathogenesis. Prog Neuropsychopharmacol Biol Psychiatry 2021; 105:110086. [PMID: 32889031 DOI: 10.1016/j.pnpbp.2020.110086] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 08/17/2020] [Accepted: 08/26/2020] [Indexed: 01/23/2023]
Abstract
Despite high prevalence, medical impact and societal burden, anxiety, depression and other affective disorders remain poorly understood and treated. Clinical complexity and polygenic nature complicate their analyses, often revealing genetic overlap and cross-disorder heritability. However, the interplay or overlaps between disordered phenotypes can also be based on shared molecular pathways and 'crosstalk' mechanisms, which themselves may be genetically determined. We have earlier predicted (Kalueff et al., 2014) a new class of 'interlinking' brain genes that do not affect the disordered phenotypes per se, but can instead specifically determine their interrelatedness. To test this hypothesis experimentally, here we applied a well-established rodent chronic social defeat stress model, known to progress in C57BL/6J mice from the Anxiety-like stage on Day 10 to Depression-like stage on Day 20. The present study analyzed mouse whole-genome expression in the prefrontal cortex and hippocampus during the Day 10, the Transitional (Day 15) and Day 20 stages in this model. Our main question here was whether a putative the Transitional stage (Day 15) would reveal distinct characteristic genomic responses from Days 10 and 20 of the model, thus reflecting unique molecular events underlining the transformation or switch from anxiety to depression pathogenesis. Overall, while in the Day 10 (Anxiety) group both brain regions showed major genomic alterations in various neurotransmitter signaling pathways, the Day 15 (Transitional) group revealed uniquely downregulated astrocyte-related genes, and the Day 20 (Depression) group demonstrated multiple downregulated genes of cell adhesion, inflammation and ion transport pathways. Together, these results reveal a complex temporal dynamics of mouse affective phenotypes as they develop. Our genomic profiling findings provide first experimental support to the idea that novel brain genes (activated here only during the Transitional stage) may uniquely integrate anxiety and depression pathogenesis and, hence, determine the progression from one pathological state to another. This concept can potentially be extended to other brain conditions as well. This preclinical study also further implicates cilial and astrocytal mechanisms in the pathogenesis of affective disorders.
Collapse
Affiliation(s)
- Konstantin A Demin
- Institute of Experimental Medicine, Almazov National Medical Research Centre, Ministry of Healthcare of Russian Federation, St. Petersburg, Russia; Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia
| | - Dmitry A Smagin
- Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia
| | | | - Tatyana Strekalova
- I.M. Sechenov First Moscow State Medical University, Moscow, Russia; Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, Maastricht, the Netherlands; Research Institute of General Pathology and Pathophysiology, Moscow, Russia
| | - David S Galstyan
- Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia; Granov Russian Scientific Center of Radiology and Surgical Technologies, Ministry of Healthcare, St. Petersburg, Russia
| | - Tatyana O Kolesnikova
- Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia; Laboratory of Cell and Molecular Biology and Neurobiology, School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Moscow, Russia
| | | | | | - Alim Bashirzade
- Scientific Research Institute of Physiology and Basic Medicine, Novosibirsk, Russia; Institute of Medicine and Psychology, Novosibirsk State University, Novosibirsk, Russia
| | - Allan V Kalueff
- School of Pharmacy, Southwest University, Chongqing, China; Ural Federal University, Ekaterinburg, Russia; Laboratory of Cell and Molecular Biology and Neurobiology, School of Biological and Medical Physics, Moscow Institute of Physics and Technology, Moscow, Russia.
| |
Collapse
|
5
|
Babenko VN, Smagin DA, Galyamina AG, Kovalenko IL, Kudryavtseva NN. Altered Slc25 family gene expression as markers of mitochondrial dysfunction in brain regions under experimental mixed anxiety/depression-like disorder. BMC Neurosci 2018; 19:79. [PMID: 30537945 PMCID: PMC6288882 DOI: 10.1186/s12868-018-0480-6] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Accepted: 12/04/2018] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Development of anxiety- and depression-like states under chronic social defeat stress in mice has been shown by many experimental studies. In this article, the differentially expressed Slc25* family genes encoding mitochondrial carrier proteins were analyzed in the brain of depressive (defeated) mice versus aggressive mice winning in everyday social confrontations. The collected samples of brain regions were sequenced at JSC Genoanalytica ( http://genoanalytica.ru/ , Moscow, Russia). RESULTS Changes in the expression of the 20 Slc25* genes in the male mice were brain region- and social experience (positive or negative)-specific. In particular, most Slc25* genes were up-regulated in the hypothalamus of defeated and aggressive mice and in the hippocampus of defeated mice. In the striatum of defeated mice and in the ventral tegmental area of aggressive mice expression of mitochondrial transporter genes changed specifically. Significant correlations between expression of most Slc25* genes and mitochondrial Mrps and Mrpl genes were found in the brain regions. CONCLUSION Altered expression of the Slc25* genes may serve as a marker of mitochondrial dysfunction in brain, which accompanies the development of many neurological and psychoemotional disorders.
Collapse
Affiliation(s)
- Vladimir N Babenko
- Laboratory of Neuropathology Modeling, The Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia. .,Neurogenetics of Social Behavior Sector, The Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia. .,Laboratory of Human Molecular Genetics, The Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia.
| | - Dmitry A Smagin
- Laboratory of Neuropathology Modeling, The Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia.,Neurogenetics of Social Behavior Sector, The Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia
| | - Anna G Galyamina
- Laboratory of Neuropathology Modeling, The Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia.,Neurogenetics of Social Behavior Sector, The Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia
| | - Irina L Kovalenko
- Laboratory of Neuropathology Modeling, The Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia.,Neurogenetics of Social Behavior Sector, The Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia
| | - Natalia N Kudryavtseva
- Laboratory of Neuropathology Modeling, The Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia. .,Neurogenetics of Social Behavior Sector, The Federal Research Center Institute of Cytology and Genetics SB RAS, Novosibirsk, Russia.
| |
Collapse
|
6
|
Kovalenko IL, Smagin DA, Galyamina AG, Orlov YL, Kudryavtseva NN. Changes in the expression of dopaminergic genes in brain structures of male mice exposed to chronic social defeat Stress: An RNA-seq study. Mol Biol 2016. [DOI: 10.1134/s0026893316010088] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
7
|
Dysfunction in Ribosomal Gene Expression in the Hypothalamus and Hippocampus following Chronic Social Defeat Stress in Male Mice as Revealed by RNA-Seq. Neural Plast 2015; 2016:3289187. [PMID: 26839715 PMCID: PMC4709679 DOI: 10.1155/2016/3289187] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2015] [Accepted: 09/29/2015] [Indexed: 11/17/2022] Open
Abstract
Chronic social defeat stress leads to the development of anxiety- and depression-like states in male mice and is accompanied by numerous molecular changes in brain. The influence of 21-day period of social stress on ribosomal gene expression in five brain regions was studied using the RNA-Seq database. Most Rps, Rpl, Mprs, and Mprl genes were upregulated in the hypothalamus and downregulated in the hippocampus, which may indicate ribosomal dysfunction following chronic social defeat stress. There were no differentially expressed ribosomal genes in the ventral tegmental area, midbrain raphe nuclei, or striatum. This approach may be used to identify a pharmacological treatment of ribosome biogenesis abnormalities in the brain of patients with "ribosomopathies."
Collapse
|
8
|
Hiadlovská Z, Mikula O, Macholán M, Hamplová P, Vošlajerová Bímová B, Daniszová K. Shaking the myth: Body mass, aggression, steroid hormones, and social dominance in wild house mouse. Gen Comp Endocrinol 2015; 223:16-26. [PMID: 26433061 DOI: 10.1016/j.ygcen.2015.09.033] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2015] [Revised: 09/19/2015] [Accepted: 09/29/2015] [Indexed: 10/23/2022]
Abstract
In social mammals, the position of a male in the group's hierarchy strongly affects his reproductive success. Since a high social rank is often gained through competition with other males, selection should favour bigger males over smaller ones. We may therefore predict faster growth and/or delayed sexual maturity in dominant males. Likewise, dominants should have higher levels of testosterone, hormone important in many aspects of male dominance. Less obvious is the relationship between dominance and levels of corticosterone but generally higher concentrations are expected in subordinate individuals. We studied body growth, sexual maturation and endocrinal changes in males of two house mouse subspecies, raised in fraternal pairs. Since Mus musculus domesticus is the subspecies which dominates mutual encounters with Mus musculus musculus we predicted higher growth rate, delayed puberty and aggression, and higher testosterone and corticosterone levels in domesticus males compared to musculus. In all comparisons, no differences were found between dominant and subordinate musculus brothers. On the other hand, in M. m. domesticus, dominant males revealed a different growth trajectory and lower corticosterone levels than subordinate males but not delayed puberty and higher testosterone concentrations, thus contradicting our predictions. In inter-subspecific comparisons, musculus males matured earlier but became aggressive at the same time as domesticus males. The musculus testosterone ontogeny suggests that social positions in this subspecies remain unfixed for an extended period and that the increasing levels probably reflect prolonged hierarchy contests. It appears that the ontogeny of behaviour and physiological traits diverge cryptically between the two subspecies.
Collapse
Affiliation(s)
- Z Hiadlovská
- Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Veveří 97, CZ-602 00 Brno, Czech Republic.
| | - O Mikula
- Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Veveří 97, CZ-602 00 Brno, Czech Republic
| | - M Macholán
- Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Veveří 97, CZ-602 00 Brno, Czech Republic; Institute of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, CZ-61137 Brno, Czech Republic
| | - P Hamplová
- Institute of Botany and Zoology, Faculty of Science, Masaryk University, Kotlářská 2, CZ-61137 Brno, Czech Republic
| | - B Vošlajerová Bímová
- Institute of Animal Physiology and Genetics, Academy of Sciences of the Czech Republic, Veveří 97, CZ-602 00 Brno, Czech Republic; Institute of Vertebrate Biology, ASCR, Květná 8, CZ-603 65 Brno, Czech Republic
| | - K Daniszová
- Institute of Vertebrate Biology, ASCR, Květná 8, CZ-603 65 Brno, Czech Republic; Biodiversity Research Group, Department of Zoology, Faculty of Science, Charles University, 13 Viničná 7, CZ-128 44 Prague, Czech Republic
| |
Collapse
|
9
|
Chichinadze K, Chichinadze N, Gachechiladze L, Lazarashvili A, Nikolaishvili M. Physical predictors, behavioural/emotional attributes and neurochemical determinants of dominant behaviour. Biol Rev Camb Philos Soc 2014; 89:1005-20. [DOI: 10.1111/brv.12091] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2013] [Revised: 01/20/2014] [Accepted: 01/30/2014] [Indexed: 01/25/2023]
Affiliation(s)
- Konstantin Chichinadze
- Laboratory of Behavior and Cognitive Functions; I. Beritashvili Center of Experimental Biomedicine; Gotua Street 14 0160 Tbilisi Georgia
- Department of Pathology; I. Javakhishvili Tbilisi State University; 0128 Tbilisi Georgia
- Laboratory of Theoretical Investigations, Systemic Research Center; 0179 Tbilisi Georgia
| | - Nodar Chichinadze
- Department of Andrology; A. Natishvili Institute of Morphology; 0159 Tbilisi Georgia
| | - Ledi Gachechiladze
- Laboratory of Theoretical Investigations, Systemic Research Center; 0179 Tbilisi Georgia
| | - Ann Lazarashvili
- Laboratory of Theoretical Investigations, Systemic Research Center; 0179 Tbilisi Georgia
| | - Marina Nikolaishvili
- Laboratory of Problems of Radiation Safety, Department of Radiobiology; I. Beritashvili Center of Experimental Biomedicine; 0160 Tbilisi Georgia
| |
Collapse
|
10
|
Boyarskikh UA, Bondar NP, Filipenko ML, Kudryavtseva NN. Downregulation of serotonergic gene expression in the Raphe nuclei of the midbrain under chronic social defeat stress in male mice. Mol Neurobiol 2013; 48:13-21. [PMID: 23392607 DOI: 10.1007/s12035-013-8413-y] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2012] [Accepted: 01/24/2013] [Indexed: 12/11/2022]
Abstract
There is ample experimental evidence supporting the hypothesis that the brain serotonergic system is involved in the control of chronic social defeat stress (CSDS), depression, and anxiety. The study aimed to analyze mRNA levels of the serotonergic genes in the raphe nuclei of midbrain that may be associated with chronic social defeats consistently shown by male mice in special experimental settings. The serotonergic genes were the Tph2, Sert, Maoa, and Htr1a. The Bdnf and Creb genes were also studied. The experimental groups were composed of male mice with experience of defeats in 21 daily encounters and male mice with the same track record of defeats followed by a no-defeat period without agonistic interactions (relative rest for 14 days). It has been shown that mRNA levels of the Tph2, Maoa, Sert, Htr1a, Bdnf, and Creb genes in the raphe nuclei of defeated mice are decreased as compared with the controls. The expression of the serotonergic genes as well as the Creb gene is not restored to the control level after the 2 weeks of relative rest. mRNA levels of Bdnf gene are not recovered to the control levels, although some upregulation was observed in rested losers. CSDS experience inducing the development of mixed anxiety/depression-like state in male mice downregulates the expression of serotonergic genes associated with the synthesis, inactivation, and reception of serotonin. The Bdnf and Creb genes in the midbrain raphe nuclei are also downregulated under CSDS. Period of relative rest is not enough for most serotonergic genes to recover expression to the control levels.
Collapse
Affiliation(s)
- Ul'yana A Boyarskikh
- Institute of Chemical Biology and Basic Medicine SD RAS, pr. Ac. Lavrentjeva, 8, Novosibirsk, 630090, Russia
| | | | | | | |
Collapse
|
11
|
Ginsberg SD, Che S, Hashim A, Zavadil J, Cancro R, Lee SH, Petkova E, Sershen HW, Volavka J. Differential regulation of catechol-O-methyltransferase expression in a mouse model of aggression. Brain Struct Funct 2011; 216:347-56. [PMID: 21512897 DOI: 10.1007/s00429-011-0315-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2010] [Accepted: 03/24/2011] [Indexed: 12/22/2022]
Abstract
This study was designed to understand molecular and cellular mechanisms underlying aggressive behaviors in mice exposed to repeated interactions in their homecage with conspecifics. A resident-intruder procedure was employed whereby two males were allowed to interact for 10 min trials, and aggressive and/or submissive behaviors (e.g., degree of attacking, biting, chasing, grooming, rearing, or upright posture) were assessed. Following 10 days of behavioral trials, brains were removed and dissected into specific regions including the cerebellum, frontal cortex, hippocampus, midbrain, pons, and striatum. Gene expression analysis was performed using real-time quantitative polymerase-chain reaction (qPCR) for catechol-O-methyltransferase (COMT) and tyrosine hydroxylase (TH). Compared to naive control mice, significant up regulation of COMT expression of residents was observed in the cerebellum, frontal cortex, hippocampus, midbrain, and striatum; in all of these brain regions the COMT expression of residents was also significantly higher than that of intruders. The intruders also had a significant down regulation (compared to naive control mice) within the hippocampus, indicating a selective decrease in COMT expression in the hippocampus of submissive subjects. Immunoblot analysis confirmed COMT up regulation in the midbrain and hippocampus of residents and down regulation in intruders. qPCR analysis of TH expression indicated significant up regulation in the midbrain of residents and concomitant down regulation in intruders. These findings implicate regionally- and behaviorally-specific regulation of COMT and TH expression in aggressive and submissive behaviors. Additional molecular and cellular characterization of COMT, TH, and other potential targets is warranted within this animal model of aggression.
Collapse
Affiliation(s)
- Stephen D Ginsberg
- Center for Dementia Research, Nathan Kline Institute, New York University Langone Medical Center, New York, NY, USA.
| | | | | | | | | | | | | | | | | |
Collapse
|
12
|
Bondar NP, Boyarskikh UA, Kovalenko IL, Filipenko ML, Kudryavtseva NN. Molecular implications of repeated aggression: Th, Dat1, Snca and Bdnf gene expression in the VTA of victorious male mice. PLoS One 2009; 4:e4190. [PMID: 19142237 PMCID: PMC2622718 DOI: 10.1371/journal.pone.0004190] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2008] [Accepted: 12/02/2008] [Indexed: 01/05/2023] Open
Abstract
Background It is generally recognized that recurrent aggression can be the result of various psychiatric disorders. The aim of our study was to analyze the mRNA levels, in the ventral tegmental area (VTA) of the midbrain, of the genes that may possibly be associated with aggression consistently shown by male mice in special experimental settings. Methodology/Principal Findings The genes were Th, Dat1, Snca and Bdnf; the male mice were a group of animals that had each won 20 daily encounters in succession and a group of animals that had the same winning track record followed by a no-fight period for 14 days. Increased Th, Dat1 and Snca mRNA levels were in the fresh-from-the-fight group as compared to the controls. Increased Th and Dat1 mRNA levels were in the no-fight winners as compared to the controls. Significant positive correlations were found between the level of aggression and Th and Snca mRNA levels. Conclusions Repeated positive fighting experience enhances the expression of the Th, Dat1 and Snca genes, which are associated with brain dopaminergic systems. The expression of the Th and Dat1 genes stays enhanced for a long time.
Collapse
Affiliation(s)
| | | | | | - Maxim L. Filipenko
- Institute of Chemical Biology and Basic Medicine SD RAS, Novosibirsk, Russia
| | | |
Collapse
|