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Kielbinski M, Bernacka J, Zajda K, Wawrzczak-Bargieła A, Maćkowiak M, Przewlocki R, Solecki W. Acute stress modulates noradrenergic signaling in the ventral tegmental area-amygdalar circuit. J Neurochem 2023; 164:598-612. [PMID: 36161462 DOI: 10.1111/jnc.15698] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 09/09/2022] [Accepted: 09/22/2022] [Indexed: 11/29/2022]
Abstract
Noradrenergic neurotransmission is a critical mediator of stress responses. In turn, exposure to stress induces noradrenergic system adaptations, some of which are implicated in the etiology of stress-related disorders. Adrenergic receptors (ARs) in the ventral tegmental area (VTA) have been demonstrated to regulate phasic dopamine (DA) release in the forebrain, necessary for behavioral responses to conditional cues. However, the impact of stress on noradrenergic modulation of the VTA has not been previously explored. We demonstrate that ARs in the VTA regulate dopaminergic activity in the VTA-BLA (basolateral amygdala) circuit, a key system for processing stress-related stimuli; and that such control is altered by acute stress. We utilized fast-scan cyclic voltammetry to assess the effects of intra-VTA microinfusion of α1 -AR and α2 -AR antagonists (terazosin and RX-821002, respectively), on electrically evoked phasic DA release in the BLA in stress-naïve and stressed (unavoidable electric shocks - UES) anesthetized male Sprague-Dawley rats. In addition, we used western blotting to explore UES-induced alterations in AR protein level in the VTA. Intra-VTA terazosin or RX-821002 dose-dependently attenuated DA release in the BLA. Interestingly, UES decreased the effects of intra-VTA α2 -AR blockade on DA release (24 h but not 7 days after stress), while the effects of terazosin were unchanged. Despite changes in α2 -AR physiological function in the VTA, UES did not alter α2 -AR protein levels in either intracellular or membrane fractions. These findings demonstrate that NA-ergic modulation of the VTA-BLA circuit undergoes significant alterations in response to acute stress, with α2 -AR signaling indicated as a key target.
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Affiliation(s)
- Michal Kielbinski
- Department of Neurobiology and Neuropsychology, Jagiellonian University, Institute of Applied Psychology, Krakow, Poland
| | - Joanna Bernacka
- Department of Neurobiology and Neuropsychology, Jagiellonian University, Institute of Applied Psychology, Krakow, Poland.,Department of Pharmacology, Laboratory of Pharmacology and Brain Biostructure, Maj Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Katarzyna Zajda
- Department of Neurobiology and Neuropsychology, Jagiellonian University, Institute of Applied Psychology, Krakow, Poland
| | - Agnieszka Wawrzczak-Bargieła
- Department of Pharmacology, Laboratory of Pharmacology and Brain Biostructure, Maj Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Marzena Maćkowiak
- Department of Pharmacology, Laboratory of Pharmacology and Brain Biostructure, Maj Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Ryszard Przewlocki
- Department of Molecular Neuropharmacology, Maj Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Wojciech Solecki
- Department of Neurobiology and Neuropsychology, Jagiellonian University, Institute of Applied Psychology, Krakow, Poland
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Short-Term Consequences of Single Social Defeat on Accumbal Dopamine and Behaviors in Rats. Biomolecules 2022; 13:biom13010035. [PMID: 36671420 PMCID: PMC9855991 DOI: 10.3390/biom13010035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/19/2022] [Accepted: 12/22/2022] [Indexed: 12/28/2022] Open
Abstract
The present study aimed to explore the consequences of a single exposure to a social defeat on dopamine release in the rat nucleus accumbens measured with a fast-scan cyclic voltammetry. We found that 24 h after a social defeat, accumbal dopamine responses, evoked by a high frequency electrical stimulation of the ventral tegmental area, were more profound in socially defeated rats in comparison with non-defeated control animals. The enhanced dopamine release was associated with the prolonged immobility time in the forced swim test. The use of the dopamine depletion protocol revealed no alteration in the reduction and recovery of the amplitude of dopamine release following social defeat stress. However, administration of dopamine D2 receptor antagonist, raclopride (2 mg/kg, i.p.), resulted in significant increase of the electrically evoked dopamine release in both groups of animals, nevertheless exhibiting less manifested effect in the defeated rats comparing to control animals. Taken together, our data demonstrated profound alterations in the dopamine transmission in the association with depressive-like behavior following a single exposure to stressful environment. These voltammetric findings pointed to a promising path for the identification of neurobiological mechanisms underlying stress-promoted behavioral abnormalities.
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He X, Li Y, Zhang N, Huang J, Ming X, Guo R, Hu Y, Ji P, Guo F. Melanin-concentrating hormone promotes anxiety and intestinal dysfunction via basolateral amygdala in mice. Front Pharmacol 2022; 13:906057. [PMID: 36016574 PMCID: PMC9395614 DOI: 10.3389/fphar.2022.906057] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2022] [Accepted: 07/08/2022] [Indexed: 11/13/2022] Open
Abstract
The limbic system plays a pivotal role in stress-induced anxiety and intestinal disorders, but how the functional circuits between nuclei within the limbic system are engaged in the processing is still unclear. In our study, the results of fluorescence gold retrograde tracing and fluorescence immunohistochemistry showed that the melanin-concentrating hormone (MCH) neurons of the lateral hypothalamic area (LHA) projected to the basolateral amygdala (BLA). Both chemogenetic activation of MCH neurons and microinjection of MCH into the BLA induced anxiety disorder in mice, which were reversed by intra-BLA microinjection of MCH receptor 1 (MCHR1) blocker SNAP-94847. In the chronic acute combining stress (CACS) stimulated mice, SNAP94847 administrated in the BLA ameliorated anxiety-like behaviors and improved intestinal dysfunction via reducing intestinal permeability and inflammation. In conclusion, MCHergic circuit from the LHA to the BLA participates in the regulation of anxiety-like behavior in mice, and this neural pathway is related to the intestinal dysfunction in CACS mice by regulating intestinal permeability and inflammation.
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Affiliation(s)
- Xiaoman He
- Pathophysiology Department, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Yuhang Li
- Pathophysiology Department, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Nana Zhang
- Department of Clinical Laboratory, the Affiliated Hospital of Qingdao University, Qingdao, China
| | - Jinfang Huang
- Pathophysiology Department, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Xing Ming
- Pathophysiology Department, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Ruixiao Guo
- Pathophysiology Department, School of Basic Medicine, Qingdao University, Qingdao, China
| | - Yang Hu
- Qingdao Medical College, Qingdao University, Qingdao, China
| | - Pengfei Ji
- Qingdao Medical College, Qingdao University, Qingdao, China
| | - Feifei Guo
- Pathophysiology Department, School of Basic Medicine, Qingdao University, Qingdao, China
- *Correspondence: Feifei Guo,
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Svirin E, Veniaminova E, Costa-Nunes JP, Gorlova A, Umriukhin A, Kalueff AV, Proshin A, Anthony DC, Nedorubov A, Tse ACK, Walitza S, Lim LW, Lesch KP, Strekalova T. Predation Stress Causes Excessive Aggression in Female Mice with Partial Genetic Inactivation of Tryptophan Hydroxylase-2: Evidence for Altered Myelination-Related Processes. Cells 2022; 11:cells11061036. [PMID: 35326487 PMCID: PMC8947002 DOI: 10.3390/cells11061036] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2022] [Revised: 03/11/2022] [Accepted: 03/15/2022] [Indexed: 01/27/2023] Open
Abstract
The interaction between brain serotonin (5-HT) deficiency and environmental adversity may predispose females to excessive aggression. Specifically, complete inactivation of the gene encoding tryptophan hydroxylase-2 (Tph2) results in the absence of neuronal 5-HT synthesis and excessive aggressiveness in both male and female null mutant (Tph2−/−) mice. In heterozygous male mice (Tph2+/−), there is a moderate reduction in brain 5-HT levels, and when they are exposed to stress, they exhibit increased aggression. Here, we exposed female Tph2+/− mice to a five-day rat predation stress paradigm and assessed their emotionality and social interaction/aggression-like behaviors. Tph2+/− females exhibited excessive aggression and increased dominant behavior. Stressed mutants displayed altered gene expression of the 5-HT receptors Htr1a and Htr2a, glycogen synthase kinase-3 β (GSK-3β), and c-fos as well as myelination-related transcripts in the prefrontal cortex: myelin basic protein (Mbp), proteolipid protein 1 (Plp1), myelin-associated glycoprotein (Mag), and myelin oligodendrocyte glycoprotein (Mog). The expression of the plasticity markers synaptophysin (Syp) and cAMP response element binding protein (Creb), but not AMPA receptor subunit A2 (GluA2), were affected by genotype. Moreover, in a separate experiment, naïve female Tph2+/− mice showed signs of enhanced stress resilience in the modified swim test with repeated swimming sessions. Taken together, the combination of a moderate reduction in brain 5-HT with environmental challenges results in behavioral changes in female mice that resemble the aggression-related behavior and resilience seen in stressed male mutants; additionally, the combination is comparable to the phenotype of null mutants lacking neuronal 5-HT. Changes in myelination-associated processes are suspected to underpin the molecular mechanisms leading to aggressive behavior.
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Affiliation(s)
- Evgeniy Svirin
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, 6200 MD Maastricht, The Netherlands; (E.S.); (K.-P.L.)
- Division of Molecular Psychiatry, Center of Mental Health, University of Würzburg, 97080 Würzburg, Germany
- Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 125315 Moscow, Russia
| | - Ekaterina Veniaminova
- Laboratory of Psychiatric Neurobiology, Institute of Molecular Medicine and Department of Normal Physiology, Sechenov University, 119991 Moscow, Russia; (E.V.); (J.P.C.-N.); (A.G.); (A.U.); (D.C.A.)
| | - João Pedro Costa-Nunes
- Laboratory of Psychiatric Neurobiology, Institute of Molecular Medicine and Department of Normal Physiology, Sechenov University, 119991 Moscow, Russia; (E.V.); (J.P.C.-N.); (A.G.); (A.U.); (D.C.A.)
- Institute of Molecular Medicine, New University of Lisbon, 1649-028 Lisbon, Portugal
| | - Anna Gorlova
- Laboratory of Psychiatric Neurobiology, Institute of Molecular Medicine and Department of Normal Physiology, Sechenov University, 119991 Moscow, Russia; (E.V.); (J.P.C.-N.); (A.G.); (A.U.); (D.C.A.)
| | - Aleksei Umriukhin
- Laboratory of Psychiatric Neurobiology, Institute of Molecular Medicine and Department of Normal Physiology, Sechenov University, 119991 Moscow, Russia; (E.V.); (J.P.C.-N.); (A.G.); (A.U.); (D.C.A.)
| | - Allan V. Kalueff
- Neuroscience Program, Sirius University, 354340 Sochi, Russia;
- Moscow Institute of Physics and Technology, School of Biological and Medical Physics, 141701 Dolgoprudny, Russia
- Institute of Natural Sciences, Ural Federal University, 620002 Yekaterinburg, Russia
| | - Andrey Proshin
- P.K. Anokhin Research Institute of Normal Physiology, 125315 Moscow, Russia;
| | - Daniel C. Anthony
- Laboratory of Psychiatric Neurobiology, Institute of Molecular Medicine and Department of Normal Physiology, Sechenov University, 119991 Moscow, Russia; (E.V.); (J.P.C.-N.); (A.G.); (A.U.); (D.C.A.)
- Department of Pharmacology, Oxford University, Oxford OX1 3QT, UK
| | - Andrey Nedorubov
- Institute of Translational Medicine and Biotechnology, Sechenov University, 119991 Moscow, Russia;
| | - Anna Chung Kwan Tse
- Li Ka Shing Faculty of Medicine, School of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong SAR, China;
| | - Susanne Walitza
- Department for Child and Adolescent Psychiatry and Psychotherapy, University Hospital of Psychiatry Zurich, University of Zurich, 8032 Zurich, Switzerland;
| | - Lee Wei Lim
- Li Ka Shing Faculty of Medicine, School of Biomedical Sciences, The University of Hong Kong, Pokfulam, Hong Kong SAR, China;
- Correspondence: or (L.W.L.); (T.S.); Tel.: +852-3917-6830 (L.W.L.); +31-43-38-84-108 (T.S.)
| | - Klaus-Peter Lesch
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, 6200 MD Maastricht, The Netherlands; (E.S.); (K.-P.L.)
- Division of Molecular Psychiatry, Center of Mental Health, University of Würzburg, 97080 Würzburg, Germany
- Laboratory of Psychiatric Neurobiology, Institute of Molecular Medicine and Department of Normal Physiology, Sechenov University, 119991 Moscow, Russia; (E.V.); (J.P.C.-N.); (A.G.); (A.U.); (D.C.A.)
| | - Tatyana Strekalova
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience, Maastricht University, 6200 MD Maastricht, The Netherlands; (E.S.); (K.-P.L.)
- Institute of General Pathology and Pathophysiology, Russian Academy of Medical Sciences, 125315 Moscow, Russia
- Laboratory of Psychiatric Neurobiology, Institute of Molecular Medicine and Department of Normal Physiology, Sechenov University, 119991 Moscow, Russia; (E.V.); (J.P.C.-N.); (A.G.); (A.U.); (D.C.A.)
- Correspondence: or (L.W.L.); (T.S.); Tel.: +852-3917-6830 (L.W.L.); +31-43-38-84-108 (T.S.)
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