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Chesters RA, Zhu J, Coull BM, Baidoe-Ansah D, Baumer L, Palm L, Klinghammer N, Chen S, Hahm A, Yagoub S, Cantacorps L, Bernardi D, Ritter K, Lippert RN. Fasting-induced activity changes in MC3R neurons of the paraventricular nucleus of the thalamus. Life Sci Alliance 2024; 7:e202402754. [PMID: 39107065 PMCID: PMC11303869 DOI: 10.26508/lsa.202402754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2024] [Revised: 07/26/2024] [Accepted: 07/29/2024] [Indexed: 08/09/2024] Open
Abstract
The brain controls energy homeostasis by regulating food intake through signaling within the melanocortin system. Whilst we understand the role of the hypothalamus within this system, how extra-hypothalamic brain regions are involved in controlling energy balance remains unclear. Here we show that the melanocortin 3 receptor (MC3R) is expressed in the paraventricular nucleus of the thalamus (PVT). We tested whether fasting would change the activity of MC3R neurons in this region by assessing the levels of c-Fos and pCREB as neuronal activity markers. We determined that overnight fasting causes a significant reduction in pCREB levels within PVT-MC3R neurons. We then questioned whether perturbation of MC3R signaling, during fasting, would result in altered refeeding. Using chemogenetic approaches, we show that modulation of MC3R activity, during the fasting period, does not impact body weight regain or total food intake in the refeeding period. However, we did observe significant differences in the pattern of feeding-related behavior. These findings suggest that the PVT is a region where MC3R neurons respond to energy deprivation and modulate refeeding behavior.
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Affiliation(s)
- Robert A Chesters
- Department of Neurocircuit Development and Function, German Institute of Human Nutrition https://ror.org/05xdczy51, Nuthetal, Germany
| | - Jiajie Zhu
- Department of Neurocircuit Development and Function, German Institute of Human Nutrition https://ror.org/05xdczy51, Nuthetal, Germany
- NeuroCure Cluster of Excellence, Charité-Universitätsmedizin, Berlin, Germany
| | - Bethany M Coull
- Department of Neurocircuit Development and Function, German Institute of Human Nutrition https://ror.org/05xdczy51, Nuthetal, Germany
- NeuroCure Cluster of Excellence, Charité-Universitätsmedizin, Berlin, Germany
| | - David Baidoe-Ansah
- Department of Neurocircuit Development and Function, German Institute of Human Nutrition https://ror.org/05xdczy51, Nuthetal, Germany
- NeuroCure Cluster of Excellence, Charité-Universitätsmedizin, Berlin, Germany
| | - Lea Baumer
- Department of Neurocircuit Development and Function, German Institute of Human Nutrition https://ror.org/05xdczy51, Nuthetal, Germany
| | - Lydia Palm
- Department of Neurocircuit Development and Function, German Institute of Human Nutrition https://ror.org/05xdczy51, Nuthetal, Germany
| | - Niklas Klinghammer
- Department of Neurocircuit Development and Function, German Institute of Human Nutrition https://ror.org/05xdczy51, Nuthetal, Germany
| | - Seve Chen
- Department of Neurocircuit Development and Function, German Institute of Human Nutrition https://ror.org/05xdczy51, Nuthetal, Germany
| | - Anneke Hahm
- Department of Neurocircuit Development and Function, German Institute of Human Nutrition https://ror.org/05xdczy51, Nuthetal, Germany
| | - Selma Yagoub
- Department of Neurocircuit Development and Function, German Institute of Human Nutrition https://ror.org/05xdczy51, Nuthetal, Germany
| | - Lídia Cantacorps
- Department of Neurocircuit Development and Function, German Institute of Human Nutrition https://ror.org/05xdczy51, Nuthetal, Germany
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
| | - Daniel Bernardi
- Department of Neurocircuit Development and Function, German Institute of Human Nutrition https://ror.org/05xdczy51, Nuthetal, Germany
| | - Katrin Ritter
- Department of Neurocircuit Development and Function, German Institute of Human Nutrition https://ror.org/05xdczy51, Nuthetal, Germany
| | - Rachel N Lippert
- Department of Neurocircuit Development and Function, German Institute of Human Nutrition https://ror.org/05xdczy51, Nuthetal, Germany
- German Center for Diabetes Research (DZD), München-Neuherberg, Germany
- NeuroCure Cluster of Excellence, Charité-Universitätsmedizin, Berlin, Germany
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Kong MS, Ancell E, Witten DM, Zweifel LS. Valence and Salience Encoding in the Central Amygdala. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.07.05.602310. [PMID: 39005417 PMCID: PMC11245111 DOI: 10.1101/2024.07.05.602310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/16/2024]
Abstract
The central amygdala (CeA) has emerged as an important brain region for regulating both negative (fear and anxiety) and positive (reward) affective behaviors. The CeA has been proposed to encode affective information in the form of valence (whether the stimulus is good or bad) or salience (how significant is the stimulus), but the extent to which these two types of stimulus representation occur in the CeA is not known. Here, we used single cell calcium imaging in mice during appetitive and aversive conditioning and found that majority of CeA neurons (∼65%) encode the valence of the unconditioned stimulus (US) with a smaller subset of cells (∼15%) encoding the salience of the US. Valence and salience encoding of the conditioned stimulus (CS) was also observed, albeit to a lesser extent. These findings show that the CeA is a site of convergence for encoding oppositely valenced US information.
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Alonso-Caraballo Y, Li Y, Constantino NJ, Neal MA, Driscoll GS, Mavrikaki M, Bolshakov VY, Chartoff EH. Sex-specific behavioral and thalamo-accumbal circuit adaptations after oxycodone abstinence. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.08.01.605459. [PMID: 39149276 PMCID: PMC11326127 DOI: 10.1101/2024.08.01.605459] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 08/17/2024]
Abstract
Opioid use disorder is marked by a progressive change in the motivation to administer the drug even in the presence of negative consequences. After long periods of abstinence, the urge to return to taking the drug intensifies over time, known as incubation of craving. Conditioned responses to drug-related stimuli, can acquire motivational properties and exert control over motivated behaviors leading to relapse. Although, preclinical data suggest that the behavioral expression of opioid use is similar between male and female rodents, we do not have conclusive results on sex differences on craving and relapse across abstinence periods. Here, we investigated the effects of abstinence from oxycodone self-administration on neurotransmission in the paraventricular thalamus (PVT) to nucleus accumbens shell (NAcSh) pathway in male and female rats. Using optogenetics and ex vivo electrophysiology, we assessed synaptic strength and glutamate release probability in this pathway, as well as NAcSh medium spiny neurons (MSN) intrinsic excitability, in slices from rats which were subjected to either 1 (acute) or 14 (prolonged) days of forced abstinence after self-administration. Our results revealed no sex differences in oxycodone self-administration or somatic withdrawal symptoms following acute abstinence. However, we found a sex-specific enhancement in cue-induced relapse after prolonged, but not acute, abstinence from oxycodone self-administration, with females exhibiting higher relapse rates. Notably, prolonged abstinence led to similar increases in synaptic strength at PVT-NAcSh inputs compared to saline controls in both sexes, which was not observed after acute abstinence. Thus, prolonged abstinence results in a time-dependent increase in PVT-NAcSh synaptic strength and sex-specific effects on cue-induced relapse rates. These findings suggest that prolonged abstinence leads to significant synaptic changes, contributing to heightened relapse vulnerability, highlighting the need for targeted therapeutic strategies in opioid use disorder.
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Affiliation(s)
- Y Alonso-Caraballo
- Department of Psychiatry, McLean Hospital, Harvard Medical School, Belmont, MA, USA
- Department of Neuroscience & Medical Discovery Team on Addiction, University of Minnesota, Minneapolis, MN, USA
| | - Y Li
- Department of Psychiatry, McLean Hospital, Harvard Medical School, Belmont, MA, USA
| | - N J Constantino
- Department of Psychiatry, McLean Hospital, Harvard Medical School, Belmont, MA, USA
- Department of Neuroscience, University of Kentucky, Lexington, KY, USA
| | - M A Neal
- Department of Psychiatry, McLean Hospital, Harvard Medical School, Belmont, MA, USA
| | - G S Driscoll
- Department of Psychiatry, McLean Hospital, Harvard Medical School, Belmont, MA, USA
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, USA
| | - M Mavrikaki
- Department of Psychiatry, McLean Hospital, Harvard Medical School, Belmont, MA, USA
- Department of Pathology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA
| | - V Y Bolshakov
- Department of Psychiatry, McLean Hospital, Harvard Medical School, Belmont, MA, USA
| | - E H Chartoff
- Department of Psychiatry, McLean Hospital, Harvard Medical School, Belmont, MA, USA
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Ma J, O'Malley JJ, Kreiker M, Leng Y, Khan I, Kindel M, Penzo MA. Convergent direct and indirect cortical streams shape avoidance decisions in mice via the midline thalamus. Nat Commun 2024; 15:6598. [PMID: 39097600 PMCID: PMC11297946 DOI: 10.1038/s41467-024-50941-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Accepted: 07/24/2024] [Indexed: 08/05/2024] Open
Abstract
Current concepts of corticothalamic organization in the mammalian brain are mainly based on sensory systems, with less focus on circuits for higher-order cognitive functions. In sensory systems, first-order thalamic relays are driven by subcortical inputs and modulated by cortical feedback, while higher-order relays receive strong excitatory cortical inputs. The applicability of these principles beyond sensory systems is uncertain. We investigated mouse prefronto-thalamic projections to the midline thalamus, revealing distinct top-down control. Unlike sensory systems, this pathway relies on indirect modulation via the thalamic reticular nucleus (TRN). Specifically, the prelimbic area, which influences emotional and motivated behaviors, impacts instrumental avoidance responses through direct and indirect projections to the paraventricular thalamus. Both pathways promote defensive states, but the indirect pathway via the TRN is essential for organizing avoidance decisions through disinhibition. Our findings highlight intra-thalamic circuit dynamics that integrate cortical cognitive signals and their role in shaping complex behaviors.
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Affiliation(s)
- Jun Ma
- Section on the Neural Circuits of Emotion and Motivation, National Institute of Mental Health, Bethesda, MD, USA
- Laboratory of Anesthesia and Analgesia Application Technology, Xuzhou Medical University, 221004, Xuzhou, China
| | - John J O'Malley
- Section on the Neural Circuits of Emotion and Motivation, National Institute of Mental Health, Bethesda, MD, USA
| | - Malaz Kreiker
- Section on the Neural Circuits of Emotion and Motivation, National Institute of Mental Health, Bethesda, MD, USA
| | - Yan Leng
- Section on the Neural Circuits of Emotion and Motivation, National Institute of Mental Health, Bethesda, MD, USA
| | - Isbah Khan
- Section on the Neural Circuits of Emotion and Motivation, National Institute of Mental Health, Bethesda, MD, USA
| | - Morgan Kindel
- Section on the Neural Circuits of Emotion and Motivation, National Institute of Mental Health, Bethesda, MD, USA
| | - Mario A Penzo
- Section on the Neural Circuits of Emotion and Motivation, National Institute of Mental Health, Bethesda, MD, USA.
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Illenberger JM, Flores-Ramirez FJ, Pascasio G, Franco M, Mendonsa B, Martin-Fardon R. Pivotal role of orexin signaling in the posterior paraventricular nucleus of the thalamus during the stress-induced reinstatement of oxycodone-seeking behavior. J Psychopharmacol 2024; 38:647-660. [PMID: 38888086 DOI: 10.1177/02698811241260989] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/20/2024]
Abstract
BACKGROUND The orexin (OX) system has received increasing interest as a potential target for treating substance use disorder. OX transmission in the posterior paraventricular nucleus of the thalamus (pPVT), an area activated by highly salient stimuli that are both reinforcing and aversive, mediates cue- and stress-induced reinstatement of reward-seeking behavior. Oral administration of suvorexant (SUV), a dual OX receptor (OXR) antagonist (DORA), selectively reduced conditioned reinstatement of oxycodone-seeking behavior and stress-induced reinstatement of alcohol-seeking behavior in dependent rats. AIMS This study tested whether OXR blockade in the pPVT with SUV reduces oxycodone or sweetened condensed milk (SCM) seeking elicited by conditioned cues or stress. METHODS Male Wistar rats were trained to self-administer oxycodone (0.15 mg/kg, i.v., 8 h/day) or SCM (0.1 ml, 2:1 dilution [v/v], 30 min/day). After extinction, we tested the ability of intra-pPVT SUV (15 µg/0.5 µl) to prevent reinstatement of oxycodone or SCM seeking elicited by conditioned cues or footshock stress. RESULTS The rats acquired oxycodone and SCM self-administration, and oxycodone intake correlated with signs of physical opioid withdrawal, confirming dependence. Following extinction, the presentation of conditioned cues or footshock elicited reinstatement of oxycodone- and SCM-seeking behavior. Intra-pPVT SUV blocked stress-induced reinstatement of oxycodone seeking but not conditioned reinstatement of oxycodone or SCM seeking or stress-induced reinstatement of SCM seeking. CONCLUSIONS The results indicate that OXR signaling in the pPVT is critical for stress-induced reinstatement of oxycodone seeking, further corroborating OXRs as treatment targets for opioid use disorder.
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Wang H, Flores RJ, Yarur HE, Limoges A, Bravo-Rivera H, Casello SM, Loomba N, Enriquez-Traba J, Arenivar M, Wang Q, Ganley R, Ramakrishnan C, Fenno LE, Kim Y, Deisseroth K, Or G, Dong C, Hoon MA, Tian L, Tejeda HA. Prefrontal cortical dynorphin peptidergic transmission constrains threat-driven behavioral and network states. Neuron 2024; 112:2062-2078.e7. [PMID: 38614102 PMCID: PMC11250624 DOI: 10.1016/j.neuron.2024.03.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2023] [Revised: 01/19/2024] [Accepted: 03/13/2024] [Indexed: 04/15/2024]
Abstract
Prefrontal cortical (PFC) circuits provide top-down control of threat reactivity. This includes ventromedial PFC (vmPFC) circuitry, which plays a role in suppressing fear-related behavioral states. Dynorphin (Dyn) has been implicated in mediating negative affect and maladaptive behaviors induced by severe threats and is expressed in limbic circuits, including the vmPFC. However, there is a critical knowledge gap in our understanding of how vmPFC Dyn-expressing neurons and Dyn transmission detect threats and regulate expression of defensive behaviors. Here, we demonstrate that Dyn cells are broadly activated by threats and release Dyn locally in the vmPFC to limit passive defensive behaviors. We further demonstrate that vmPFC Dyn-mediated signaling promotes a switch of vmPFC networks to a fear-related state. In conclusion, we reveal a previously unknown role of vmPFC Dyn neurons and Dyn neuropeptidergic transmission in suppressing defensive behaviors in response to threats via state-driven changes in vmPFC networks.
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Affiliation(s)
- Huikun Wang
- Neuromodulation and Synaptic Integration Unit, National Institute of Mental Health Intramural Research Program, National Institutes of Health, Bethesda, MD, USA
| | - Rodolfo J Flores
- Neuromodulation and Synaptic Integration Unit, National Institute of Mental Health Intramural Research Program, National Institutes of Health, Bethesda, MD, USA
| | - Hector E Yarur
- Neuromodulation and Synaptic Integration Unit, National Institute of Mental Health Intramural Research Program, National Institutes of Health, Bethesda, MD, USA
| | - Aaron Limoges
- Neuromodulation and Synaptic Integration Unit, National Institute of Mental Health Intramural Research Program, National Institutes of Health, Bethesda, MD, USA; Columbia University - NIH Graduate Partnership Program, National Institutes of Health, Bethesda, MD, USA
| | - Hector Bravo-Rivera
- Neuromodulation and Synaptic Integration Unit, National Institute of Mental Health Intramural Research Program, National Institutes of Health, Bethesda, MD, USA
| | - Sanne M Casello
- Neuromodulation and Synaptic Integration Unit, National Institute of Mental Health Intramural Research Program, National Institutes of Health, Bethesda, MD, USA
| | - Niharika Loomba
- Neuromodulation and Synaptic Integration Unit, National Institute of Mental Health Intramural Research Program, National Institutes of Health, Bethesda, MD, USA
| | - Juan Enriquez-Traba
- Neuromodulation and Synaptic Integration Unit, National Institute of Mental Health Intramural Research Program, National Institutes of Health, Bethesda, MD, USA
| | - Miguel Arenivar
- Neuromodulation and Synaptic Integration Unit, National Institute of Mental Health Intramural Research Program, National Institutes of Health, Bethesda, MD, USA; Brown University - NIH Graduate Partnership Program, National Institutes of Health, Bethesda, MD, USA
| | - Queenie Wang
- Neuromodulation and Synaptic Integration Unit, National Institute of Mental Health Intramural Research Program, National Institutes of Health, Bethesda, MD, USA
| | - Robert Ganley
- Molecular Genetics Section, Laboratory of Sensory Biology, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, USA
| | - Charu Ramakrishnan
- Departments of Bioengineering and Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA
| | - Lief E Fenno
- Departments of Bioengineering and Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA
| | - Yoon Kim
- Departments of Bioengineering and Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA
| | - Karl Deisseroth
- Departments of Bioengineering and Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA
| | - Grace Or
- Department of Biochemistry and Molecular Medicine, University of California, Davis, Davis, CA, USA
| | - Chunyang Dong
- Department of Biochemistry and Molecular Medicine, University of California, Davis, Davis, CA, USA
| | - Mark A Hoon
- Molecular Genetics Section, Laboratory of Sensory Biology, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, USA
| | - Lin Tian
- Department of Biochemistry and Molecular Medicine, University of California, Davis, Davis, CA, USA; Max Planck Florida Institute for Neuroscience, Jupiter, FL, USA
| | - Hugo A Tejeda
- Neuromodulation and Synaptic Integration Unit, National Institute of Mental Health Intramural Research Program, National Institutes of Health, Bethesda, MD, USA.
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Chari T, Hernandez A, Couto J, Portera-Cailliau C. A failure to discriminate social from non-social touch at the circuit level may underlie social avoidance in autism. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.06.19.599778. [PMID: 38948773 PMCID: PMC11212975 DOI: 10.1101/2024.06.19.599778] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/02/2024]
Abstract
Social touch is critical for communication and to impart emotions and intentions. However, certain autistic individuals experience aversion to social touch, especially when it is unwanted. We used a novel social touch assay and Neuropixels probes to compare neural responses to social vs. non-social interactions in three relevant brain regions: vibrissal somatosensory cortex, tail of striatum, and basolateral amygdala. We find that wild type (WT) mice showed aversion to repeated presentations of an inanimate object but not of another mouse. Cortical neurons cared most about touch context (social vs. object) and showed a preference for social interactions, while striatal neurons changed their preference depending on whether mice could choose or not to interact. Amygdalar and striatal neurons were preferentially modulated by forced object touch, which was the most aversive. In contrast, the Fmr1 knockout (KO) model of autism found social and non-social interactions equally aversive and displayed more aversive facial expressions to social touch when it invaded their personal space. Importantly, when Fmr1 KO mice could choose to interact, neurons in all three regions did not discriminate social valence. Thus, a failure to differentially encode social from non-social stimuli at the circuit level may underlie social avoidance in autism.
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Affiliation(s)
- Trishala Chari
- Department of Neurology, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA 90095
- Neuroscience Interdepartmental Program, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA 90095
| | - Ariana Hernandez
- Department of Neurology, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA 90095
| | - João Couto
- Department of Neurobiology, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA 90095
| | - Carlos Portera-Cailliau
- Department of Neurology, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA 90095
- Department of Neurobiology, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA 90095
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8
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Ye Q, Nunez J, Zhang X. Multiple cholinergic receptor subtypes coordinate dual modulation of acetylcholine on anterior and posterior paraventricular thalamic neurons. J Neurochem 2024; 168:995-1018. [PMID: 38664195 PMCID: PMC11136594 DOI: 10.1111/jnc.16115] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 03/31/2024] [Accepted: 04/05/2024] [Indexed: 05/31/2024]
Abstract
Paraventricular thalamus (PVT) plays important roles in the regulation of emotion and motivation through connecting many brain structures including the midbrain and the limbic system. Although acetylcholine (ACh) neurons of the midbrain were reported to send projections to PVT, little is known about how cholinergic signaling regulates PVT neurons. Here, we used both RNAscope and slice patch-clamp recordings to characterize cholinergic receptor expression and ACh modulation of PVT neurons in mice. We found ACh excited a majority of anterior PVT (aPVT) neurons but predominantly inhibited posterior PVT (pPVT) neurons. Compared to pPVT with more inhibitory M2 receptors, aPVT expressed higher levels of all excitatory receptor subtypes including nicotinic α4, α7, and muscarinic M1 and M3. The ACh-induced excitation was mimicked by nicotine and antagonized by selective blockers for α4β2 and α7 nicotinic ACh receptor (nAChR) subtypes as well as selective antagonists for M1 and M3 muscarinic ACh receptors (mAChR). The ACh-induced inhibition was attenuated by selective M2 and M4 mAChR receptor antagonists. Furthermore, we found ACh increased the frequency of excitatory postsynaptic currents (EPSCs) on a majority of aPVT neurons but decreased EPSC frequency on a larger number of pPVT neurons. In addition, ACh caused an acute increase followed by a lasting reduction in inhibitory postsynaptic currents (IPSCs) on PVT neurons of both subregions. Together, these data suggest that multiple AChR subtypes coordinate a differential modulation of ACh on aPVT and pPVT neurons.
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Affiliation(s)
- Qiying Ye
- Department of Psychology, Florida State University, Tallahassee, FL 32306, USA
| | - Jeremiah Nunez
- Department of Psychology, Florida State University, Tallahassee, FL 32306, USA
| | - Xiaobing Zhang
- Department of Psychology, Florida State University, Tallahassee, FL 32306, USA
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9
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Wang Z, Wang Z, Zhou Q. Modulation of learning safety signals by acute stress: paraventricular thalamus and prefrontal inhibition. Neuropsychopharmacology 2024; 49:961-973. [PMID: 38182776 PMCID: PMC11039638 DOI: 10.1038/s41386-023-01790-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 12/07/2023] [Accepted: 12/18/2023] [Indexed: 01/07/2024]
Abstract
Distinguishing between cues predicting safety and danger is crucial for survival. Impaired learning of safety cues is a central characteristic of anxiety-related disorders. Despite recent advances in dissecting the neural circuitry underlying the formation and extinction of conditioned fear, the neuronal basis mediating safety learning remains elusive. Here, we showed that safety learning reduces the responses of paraventricular thalamus (PVT) neurons to safety cues, while activation of these neurons controls both the formation and expression of safety memory. Additionally, the PVT preferentially activates prefrontal cortex somatostatin interneurons (SOM-INs), which subsequently inhibit parvalbumin interneurons (PV-INs) to modulate safety memory. Importantly, we demonstrate that acute stress impairs the expression of safety learning, and this impairment can be mitigated when the PVT is inhibited, indicating PVT mediates the stress effect. Altogether, our findings provide insights into the mechanism by which acute stress modulates safety learning.
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Affiliation(s)
- Zongliang Wang
- State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, 518055, China
| | - Zeyi Wang
- State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, 518055, China
| | - Qiang Zhou
- State Key Laboratory of Chemical Oncogenomics, Guangdong Provincial Key Laboratory of Chemical Genomics, Peking University Shenzhen Graduate School, Shenzhen, 518055, China.
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10
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Kooiker CL, Birnie MT, Floriou-Servou A, Ding Q, Thiagarajan N, Hardy M, Baram TZ. Paraventricular Thalamus Neuronal Ensembles Encode Early-life Adversity and Mediate the Consequent Sex-dependent Disruptions of Adult Reward Behaviors. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.04.28.591547. [PMID: 38746198 PMCID: PMC11092514 DOI: 10.1101/2024.04.28.591547] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2024]
Abstract
Early-life adversity increases risk for mental illnesses including depression and substance use disorders, disorders characterized by dysregulated reward behaviors. However, the mechanisms by which transient ELA enduringly impacts reward circuitries are not well understood. In mice, ELA leads to anhedonia-like behaviors in males and augmented motivation for palatable food and sex-reward cues in females. Here, the use of genetic tagging demonstrated robust, preferential, and sex-specific activation of the paraventricular nucleus of the thalamus (PVT) during ELA and a potentiated reactivation of these PVT neurons during a reward task in adult ELA mice. Chemogenetic manipulation of specific ensembles of PVT neurons engaged during ELA identified a role for the posterior PVT in ELA-induced aberrantly augmented reward behaviors in females. In contrast, anterior PVT neurons activated during ELA were required for the anhedonia-like behaviors in males. Thus, the PVT encodes adverse experiences early-in life, prior to the emergence of the hippocampal memory system, and contributes critically to the lasting, sex-modulated impacts of ELA on reward behaviors.
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Affiliation(s)
- Cassandra L. Kooiker
- Department of Anatomy/Neurobiology, University of California-Irvine, Irvine, CA, USA
| | - Matthew T. Birnie
- Department of Anatomy/Neurobiology, University of California-Irvine, Irvine, CA, USA
- Department of Pediatrics, University of California-Irvine, Irvine, CA, USA
| | - Amalia Floriou-Servou
- Department of Anatomy/Neurobiology, University of California-Irvine, Irvine, CA, USA
| | - Qinxin Ding
- School of Biological Sciences, University of California-Irvine, Irvine, CA, USA
| | - Neeraj Thiagarajan
- School of Biological Sciences, University of California-Irvine, Irvine, CA, USA
| | - Mason Hardy
- Department of Anatomy/Neurobiology, University of California-Irvine, Irvine, CA, USA
| | - Tallie Z. Baram
- Department of Anatomy/Neurobiology, University of California-Irvine, Irvine, CA, USA
- Department of Pediatrics, University of California-Irvine, Irvine, CA, USA
- Department of Neurology, University of California-Irvine, Irvine, CA, USA
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11
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Kawatake-Kuno A, Li H, Inaba H, Hikosaka M, Ishimori E, Ueki T, Garkun Y, Morishita H, Narumiya S, Oishi N, Ohtsuki G, Murai T, Uchida S. Sustained antidepressant effects of ketamine metabolite involve GABAergic inhibition-mediated molecular dynamics in aPVT glutamatergic neurons. Neuron 2024; 112:1265-1285.e10. [PMID: 38377990 PMCID: PMC11031324 DOI: 10.1016/j.neuron.2024.01.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Revised: 12/25/2023] [Accepted: 01/20/2024] [Indexed: 02/22/2024]
Abstract
Despite the rapid and sustained antidepressant effects of ketamine and its metabolites, their underlying cellular and molecular mechanisms are not fully understood. Here, we demonstrate that the sustained antidepressant-like behavioral effects of (2S,6S)-hydroxynorketamine (HNK) in repeatedly stressed animal models involve neurobiological changes in the anterior paraventricular nucleus of the thalamus (aPVT). Mechanistically, (2S,6S)-HNK induces mRNA expression of extrasynaptic GABAA receptors and subsequently enhances GABAA-receptor-mediated tonic currents, leading to the nuclear export of histone demethylase KDM6 and its replacement by histone methyltransferase EZH2. This process increases H3K27me3 levels, which in turn suppresses the transcription of genes associated with G-protein-coupled receptor signaling. Thus, our findings shed light on the comprehensive cellular and molecular mechanisms in aPVT underlying the sustained antidepressant behavioral effects of ketamine metabolites. This study may support the development of potentially effective next-generation pharmacotherapies to promote sustained remission of stress-related psychiatric disorders.
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Affiliation(s)
- Ayako Kawatake-Kuno
- SK Project, Medical Innovation Center, Kyoto University Graduate School of Medicine, 53 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan; Department of Psychiatry, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029; Department of Ophthalmology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029; Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029; Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029; Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029
| | - Haiyan Li
- SK Project, Medical Innovation Center, Kyoto University Graduate School of Medicine, 53 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Hiromichi Inaba
- SK Project, Medical Innovation Center, Kyoto University Graduate School of Medicine, 53 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan; Department of Psychiatry, Kyoto University Graduate School of Medicine, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Momoka Hikosaka
- Department of Drug Discovery Medicine, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan
| | - Erina Ishimori
- SK Project, Medical Innovation Center, Kyoto University Graduate School of Medicine, 53 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Takatoshi Ueki
- Department of Integrative Anatomy, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-8601, Japan
| | - Yury Garkun
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029; Department of Ophthalmology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029; Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029; Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029; Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029
| | - Hirofumi Morishita
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029; Department of Ophthalmology, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029; Nash Family Department of Neuroscience, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029; Mindich Child Health and Development Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029; Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, One Gustave L. Levy Place, New York, NY 10029
| | - Shuh Narumiya
- Department of Drug Discovery Medicine, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan
| | - Naoya Oishi
- SK Project, Medical Innovation Center, Kyoto University Graduate School of Medicine, 53 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan; Department of Psychiatry, Kyoto University Graduate School of Medicine, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Gen Ohtsuki
- Department of Drug Discovery Medicine, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan.
| | - Toshiya Murai
- Department of Psychiatry, Kyoto University Graduate School of Medicine, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Shusaku Uchida
- SK Project, Medical Innovation Center, Kyoto University Graduate School of Medicine, 53 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan; Department of Drug Discovery Medicine, Kyoto University Graduate School of Medicine, Kyoto 606-8507, Japan; Department of Integrative Anatomy, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya, Aichi 467-8601, Japan; Kyoto University Medical Science and Business Liaison Organization, 53 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan.
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12
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Beas S, Khan I, Gao C, Loewinger G, Macdonald E, Bashford A, Rodriguez-Gonzalez S, Pereira F, Penzo MA. Dissociable encoding of motivated behavior by parallel thalamo-striatal projections. Curr Biol 2024; 34:1549-1560.e3. [PMID: 38458192 PMCID: PMC11003833 DOI: 10.1016/j.cub.2024.02.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Revised: 01/20/2024] [Accepted: 02/15/2024] [Indexed: 03/10/2024]
Abstract
The successful pursuit of goals requires the coordinated execution and termination of actions that lead to positive outcomes. This process relies on motivational states that are guided by internal drivers, such as hunger or fear. However, the mechanisms by which the brain tracks motivational states to shape instrumental actions are not fully understood. The paraventricular nucleus of the thalamus (PVT) is a midline thalamic nucleus that shapes motivated behaviors via its projections to the nucleus accumbens (NAc)1,2,3,4,5,6,7,8 and monitors internal state via interoceptive inputs from the hypothalamus and brainstem.3,9,10,11,12,13,14 Recent studies indicate that the PVT can be subdivided into two major neuronal subpopulations, namely PVTD2(+) and PVTD2(-), which differ in genetic identity, functionality, and anatomical connectivity to other brain regions, including the NAc.4,15,16 In this study, we used fiber photometry to investigate the in vivo dynamics of these two distinct PVT neuronal types in mice performing a foraging-like behavioral task. We discovered that PVTD2(+) and PVTD2(-) neurons encode the execution and termination of goal-oriented actions, respectively. Furthermore, activity in the PVTD2(+) neuronal population mirrored motivation parameters such as vigor and satiety. Similarly, PVTD2(-) neurons also mirrored some of these parameters, but to a much lesser extent. Importantly, these features were largely preserved when activity in PVT projections to the NAc was selectively assessed. Collectively, our results highlight the existence of two parallel thalamo-striatal projections that participate in the dynamic regulation of goal pursuits and provide insight into the mechanisms by which the brain tracks motivational states to shape instrumental actions.
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Affiliation(s)
- Sofia Beas
- Unit on the Neurobiology of Affective Memory, National Institute of Mental Health, Convent Drive, Bethesda, MD 20892, USA; Department of Neurobiology, University of Alabama at Birmingham, University Boulevard, Birmingham, AL 35294, USA.
| | - Isbah Khan
- Unit on the Neurobiology of Affective Memory, National Institute of Mental Health, Convent Drive, Bethesda, MD 20892, USA
| | - Claire Gao
- Unit on the Neurobiology of Affective Memory, National Institute of Mental Health, Convent Drive, Bethesda, MD 20892, USA
| | - Gabriel Loewinger
- Machine Learning Team, National Institute of Mental Health, Convent Drive, Bethesda, MD 20892, USA
| | - Emma Macdonald
- Unit on the Neurobiology of Affective Memory, National Institute of Mental Health, Convent Drive, Bethesda, MD 20892, USA
| | - Alison Bashford
- Unit on the Neurobiology of Affective Memory, National Institute of Mental Health, Convent Drive, Bethesda, MD 20892, USA
| | - Shakira Rodriguez-Gonzalez
- Unit on the Neurobiology of Affective Memory, National Institute of Mental Health, Convent Drive, Bethesda, MD 20892, USA
| | - Francisco Pereira
- Machine Learning Team, National Institute of Mental Health, Convent Drive, Bethesda, MD 20892, USA
| | - Mario A Penzo
- Unit on the Neurobiology of Affective Memory, National Institute of Mental Health, Convent Drive, Bethesda, MD 20892, USA.
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13
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Ren S, Zhang C, Yue F, Tang J, Zhang W, Zheng Y, Fang Y, Wang N, Song Z, Zhang Z, Zhang X, Qin H, Wang Y, Xia J, Jiang C, He C, Luo F, Hu Z. A midbrain GABAergic circuit constrains wakefulness in a mouse model of stress. Nat Commun 2024; 15:2722. [PMID: 38548744 PMCID: PMC10978901 DOI: 10.1038/s41467-024-46707-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Accepted: 03/07/2024] [Indexed: 04/01/2024] Open
Abstract
Enhancement of wakefulness is a prerequisite for adaptive behaviors to cope with acute stress, but hyperarousal is associated with impaired behavioral performance. Although the neural circuitries promoting wakefulness in acute stress conditions have been extensively identified, less is known about the circuit mechanisms constraining wakefulness to prevent hyperarousal. Here, we found that chemogenetic or optogenetic activation of GAD2-positive GABAergic neurons in the midbrain dorsal raphe nucleus (DRNGAD2) decreased wakefulness, while inhibition or ablation of these neurons produced an increase in wakefulness along with hyperactivity. Surprisingly, DRNGAD2 neurons were paradoxically wakefulness-active and were further activated by acute stress. Bidirectional manipulations revealed that DRNGAD2 neurons constrained the increase of wakefulness and arousal level in a mouse model of stress. Circuit-specific investigations demonstrated that DRNGAD2 neurons constrained wakefulness via inhibition of the wakefulness-promoting paraventricular thalamus. Therefore, the present study identified a wakefulness-constraining role DRNGAD2 neurons in acute stress conditions.
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Affiliation(s)
- Shuancheng Ren
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China.
- No. 953 Army Hospital, Shigatse, Tibet Autonomous Region, 857000, China.
| | - Cai Zhang
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China
| | - Faguo Yue
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China
- Sleep and Psychology Center, Bishan Hospital of Chongqing Medical University, Chongqing, 402760, China
| | - Jinxiang Tang
- Sleep and Psychology Center, Bishan Hospital of Chongqing Medical University, Chongqing, 402760, China
| | - Wei Zhang
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China
| | - Yue Zheng
- Department of Anesthesiology, Southwest Hospital, Army Medical University, Chongqing, 400038, China
| | - Yuanyuan Fang
- Department of Anesthesiology, Zhongnan Hospital, Wuhan University, Wuhan, 430071, China
| | - Na Wang
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China
- College of Bioengineering, Chongqing University, Chongqing, 400044, China
| | - Zhenbo Song
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China
| | - Zehui Zhang
- Department of Physiology, College of Basic Medical Sciences, Jilin University, Changchun, 130021, China
| | - Xiaolong Zhang
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China
| | - Han Qin
- Chongqing Institute for Brain and Intelligence, Guangyang Bay Laboratory, Chongqing, 400064, China
| | - Yaling Wang
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China
| | - Jianxia Xia
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China
| | - Chenggang Jiang
- Psychology Department, Women and Children's Hospital of Chongqing Medical University, Chongqing Health Center for Women and Children, Chongqing, 401147, China
| | - Chao He
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China.
| | - Fenlan Luo
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China.
| | - Zhian Hu
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing, 400038, China.
- Chongqing Institute for Brain and Intelligence, Guangyang Bay Laboratory, Chongqing, 400064, China.
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14
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Paniccia JE, Vollmer KM, Green LM, Grant RI, Winston KT, Buchmaier S, Westphal AM, Clarke RE, Doncheck EM, Bordieanu B, Manusky LM, Martino MR, Ward AL, Rinker JA, McGinty JF, Scofield MD, Otis JM. Restoration of a paraventricular thalamo-accumbal behavioral suppression circuit prevents reinstatement of heroin seeking. Neuron 2024; 112:772-785.e9. [PMID: 38141605 PMCID: PMC10939883 DOI: 10.1016/j.neuron.2023.11.024] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2023] [Revised: 10/17/2023] [Accepted: 11/29/2023] [Indexed: 12/25/2023]
Abstract
Lack of behavioral suppression typifies substance use disorders, yet the neural circuit underpinnings of drug-induced behavioral disinhibition remain unclear. Here, we employ deep-brain two-photon calcium imaging in heroin self-administering mice, longitudinally tracking adaptations within a paraventricular thalamus to nucleus accumbens behavioral inhibition circuit from the onset of heroin use to reinstatement. We find that select thalamo-accumbal neuronal ensembles become profoundly hypoactive across the development of heroin seeking and use. Electrophysiological experiments further reveal persistent adaptations at thalamo-accumbal parvalbumin interneuronal synapses, whereas functional rescue of these synapses prevents multiple triggers from initiating reinstatement of heroin seeking. Finally, we find an enrichment of μ-opioid receptors in output- and cell-type-specific paraventricular thalamic neurons, which provide a mechanism for heroin-induced synaptic plasticity and behavioral disinhibition. These findings reveal key circuit adaptations that underlie behavioral disinhibition in opioid dependence and further suggest that recovery of this system would reduce relapse susceptibility.
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Affiliation(s)
- Jacqueline E Paniccia
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC 29425, USA; Department of Anesthesia & Perioperative Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Kelsey M Vollmer
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Lisa M Green
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Roger I Grant
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Kion T Winston
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Sophie Buchmaier
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Annaka M Westphal
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC 29425, USA; Department of Anesthesia & Perioperative Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Rachel E Clarke
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC 29425, USA; Department of Anesthesia & Perioperative Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Elizabeth M Doncheck
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Bogdan Bordieanu
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Logan M Manusky
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Michael R Martino
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Amy L Ward
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Jennifer A Rinker
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Jacqueline F McGinty
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC 29425, USA
| | - Michael D Scofield
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC 29425, USA; Department of Anesthesia & Perioperative Medicine, Medical University of South Carolina, Charleston, SC 29425, USA
| | - James M Otis
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC 29425, USA; Hollings Cancer Center, Medical University of South Carolina, Charleston, SC 29425, USA; Ralph Johnson Veterans Administration, Charleston, SC 29425, USA.
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15
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Li H, Kawatake-Kuno A, Inaba H, Miyake Y, Itoh Y, Ueki T, Oishi N, Murai T, Suzuki T, Uchida S. Discrete prefrontal neuronal circuits determine repeated stress-induced behavioral phenotypes in male mice. Neuron 2024; 112:786-804.e8. [PMID: 38228137 DOI: 10.1016/j.neuron.2023.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2023] [Revised: 11/26/2023] [Accepted: 12/11/2023] [Indexed: 01/18/2024]
Abstract
Chronic stress is a major risk factor for psychiatric disorders, including depression. Although depression is a highly heterogeneous syndrome, it remains unclear how chronic stress drives individual differences in behavioral responses. In this study, we developed a subtyping-based approach wherein stressed male mice were divided into four subtypes based on their behavioral patterns of social interaction deficits and anhedonia, the core symptoms of psychiatric disorders. We identified three prefrontal cortical neuronal projections that regulate repeated stress-induced behavioral phenotypes. Among them, the medial prefrontal cortex (mPFC)→anterior paraventricular thalamus (aPVT) pathway determines the specific behavioral subtype that exhibits both social deficits and anhedonia. Additionally, we identified the circuit-level molecular mechanism underlying this subtype: KDM5C-mediated epigenetic repression of Shisa2 transcription in aPVT projectors in the mPFC led to social deficits and anhedonia. Thus, we provide a set of biological aspects at the cellular, molecular, and epigenetic levels that determine distinctive stress-induced behavioral phenotypes.
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Affiliation(s)
- Haiyan Li
- SK Project, Medical Innovation Center, Kyoto University Graduate School of Medicine, 53 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Ayako Kawatake-Kuno
- SK Project, Medical Innovation Center, Kyoto University Graduate School of Medicine, 53 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Hiromichi Inaba
- SK Project, Medical Innovation Center, Kyoto University Graduate School of Medicine, 53 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan; Department of Psychiatry, Kyoto University Graduate School of Medicine, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Yuka Miyake
- SANKEN, Osaka University, 8-1 Mihogaoka, Ibaraki-shi, Osaka 567-0047, Japan; Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, 4-1-8 Hon-cho, Kawaguchi, Saitama 332-0012, Japan
| | - Yukihiro Itoh
- SANKEN, Osaka University, 8-1 Mihogaoka, Ibaraki-shi, Osaka 567-0047, Japan; Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, 4-1-8 Hon-cho, Kawaguchi, Saitama 332-0012, Japan
| | - Takatoshi Ueki
- Department of Integrative Anatomy, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan
| | - Naoya Oishi
- SK Project, Medical Innovation Center, Kyoto University Graduate School of Medicine, 53 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan; Department of Psychiatry, Kyoto University Graduate School of Medicine, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Toshiya Murai
- Department of Psychiatry, Kyoto University Graduate School of Medicine, 54 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan
| | - Takayoshi Suzuki
- SANKEN, Osaka University, 8-1 Mihogaoka, Ibaraki-shi, Osaka 567-0047, Japan; Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, 4-1-8 Hon-cho, Kawaguchi, Saitama 332-0012, Japan
| | - Shusaku Uchida
- SK Project, Medical Innovation Center, Kyoto University Graduate School of Medicine, 53 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan; Core Research for Evolutional Science and Technology, Japan Science and Technology Agency, 4-1-8 Hon-cho, Kawaguchi, Saitama 332-0012, Japan; Kyoto University Medical Science and Business Liaison Organization, Medical Innovation Center, 53 Shogoin-Kawahara-cho, Sakyo-ku, Kyoto 606-8507, Japan; Division of Neuropsychiatry, Department of Neuroscience, Yamaguchi University Graduate School of Medicine, 1-1-1 Minami-Kogushi, Ube, Yamaguchi 755-8505, Japan; Department of Integrative Anatomy, Nagoya City University Graduate School of Medical Sciences, 1 Kawasumi, Mizuho-cho, Mizuho-ku, Nagoya 467-8601, Japan.
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16
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Greiner EM, Witt ME, Moran SJ, Petrovich GD. Activation patterns in male and female forebrain circuitries during food consumption under novelty. Brain Struct Funct 2024; 229:403-429. [PMID: 38193917 DOI: 10.1007/s00429-023-02742-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Accepted: 11/22/2023] [Indexed: 01/10/2024]
Abstract
The influence of novelty on feeding behavior is significant and can override both homeostatic and hedonic drives due to the uncertainty of potential danger. Previous work found that novel food hypophagia is enhanced in a novel environment and that males habituate faster than females. The current study's aim was to identify the neural substrates of separate effects of food and context novelty. Adult male and female rats were tested for consumption of a novel or familiar food in either a familiar or in a novel context. Test-induced Fos expression was measured in the amygdalar, thalamic, striatal, and prefrontal cortex regions that are important for appetitive responding, contextual processing, and reward motivation. Food and context novelty induced strikingly different activation patterns. Novel context induced Fos robustly in almost every region analyzed, including the central (CEA) and basolateral complex nuclei of the amygdala, the thalamic paraventricular (PVT) and reuniens nuclei, the nucleus accumbens (ACB), the medial prefrontal cortex prelimbic and infralimbic areas, and the dorsal agranular insular cortex (AI). Novel food induced Fos in a few select regions: the CEA, anterior basomedial nucleus of the amygdala, anterior PVT, and posterior AI. There were also sex differences in activation patterns. The capsular and lateral CEA had greater activation for male groups and the anterior PVT, ACB ventral core and shell had greater activation for female groups. These activation patterns and correlations between regions, suggest that distinct functional circuitries control feeding behavior when food is novel and when eating occurs in a novel environment.
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Affiliation(s)
- Eliza M Greiner
- Department of Psychology and Neuroscience, Boston College, Chestnut Hill, MA, 02467, USA
| | - Mary E Witt
- Department of Psychology and Neuroscience, Boston College, Chestnut Hill, MA, 02467, USA
| | - Stephanie J Moran
- Department of Psychology and Neuroscience, Boston College, Chestnut Hill, MA, 02467, USA
| | - Gorica D Petrovich
- Department of Psychology and Neuroscience, Boston College, Chestnut Hill, MA, 02467, USA.
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17
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Duan WY, Peng K, Qin HM, Li BM, Xu YX, Wang DJ, Yu L, Wang H, Hu J, Wang QX. Esketamine accelerates emergence from isoflurane general anaesthesia by activating the paraventricular thalamus glutamatergic neurones in mice. Br J Anaesth 2024; 132:334-342. [PMID: 38044237 DOI: 10.1016/j.bja.2023.10.038] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2023] [Revised: 10/02/2023] [Accepted: 10/18/2023] [Indexed: 12/05/2023] Open
Abstract
BACKGROUND Delayed emergence from general anaesthesia poses a significant perioperative safety hazard. Subanaesthetic doses of ketamine not only deepen anaesthesia but also accelerate recovery from isoflurane anaesthesia; however, the mechanisms underlying this phenomenon remain elusive. Esketamine exhibits a more potent receptor affinity and fewer adverse effects than ketamine and exhibits shorter recovery times after brief periods of anaesthesia. As the paraventricular thalamus (PVT) plays a pivotal role in regulating wakefulness, we studied its role in the emergence process during combined esketamine and isoflurane anaesthesia. METHODS The righting reflex and cortical electroencephalography were used as measures of consciousness in mice during isoflurane anaesthesia with coadministration of esketamine. The expression of c-Fos was used to determine neuronal activity changes in PVT neurones after esketamine administration. The effect of esketamine combined with isoflurane anaesthesia on PVT glutamatergic (PVTGlu) neuronal activity was monitored by fibre photometry, and chemogenetic technology was used to manipulate PVTGlu neuronal activity. RESULTS A low dose of esketamine (5 mg kg-1) accelerated emergence from isoflurane general anaesthesia (474 [30] s vs 544 [39] s, P=0.001). Esketamine (5 mg kg-1) increased PVT c-Fos expression (508 [198] vs 258 [87], P=0.009) and enhanced the population activity of PVTGlu neurones (0.03 [1.7]% vs 6.9 [3.4]%, P=0.002) during isoflurane anaesthesia (1.9 [5.7]% vs -5.1 [5.3]%, P=0.016) and emergence (6.1 [6.2]% vs -1.1 [5.0]%, P=0.022). Chemogenetic suppression of PVTGlu neurones abolished the arousal-promoting effects of esketamine (459 [33] s vs 596 [33] s, P<0.001). CONCLUSIONS Our results suggest that esketamine promotes recovery from isoflurane anaesthesia by activating PVTGlu neurones. This mechanism could explain the rapid arousability exhibited upon treatment with a low dose of esketamine.
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Affiliation(s)
- Wen-Ying Duan
- Department of Anesthesiology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Kang Peng
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China; Department of Rehabilitation Medicine, Guangzhou First People's Hospital, School of Medicine, South China University of Technology, Guangzhou, China
| | - Hui-Min Qin
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China
| | - Bai-Ming Li
- Department of Anesthesiology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Yun-Xin Xu
- Department of Anesthesiology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Dan-Jun Wang
- Department of Anesthesiology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Le Yu
- Department of Anesthesiology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Hui Wang
- Department of Anesthesiology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China
| | - Ji Hu
- School of Life Science and Technology, ShanghaiTech University, Shanghai, China.
| | - Qing-Xiu Wang
- Department of Anesthesiology, Shanghai East Hospital, Tongji University School of Medicine, Shanghai, China.
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18
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Li SH, Li S, Kirouac GJ. Analysis of Monosynaptic Inputs to Thalamic Paraventricular Nucleus Neurons Innervating the Shell of the Nucleus Accumbens and Central Extended Amygdala. Neuroscience 2024; 537:151-164. [PMID: 38056620 DOI: 10.1016/j.neuroscience.2023.11.033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 11/22/2023] [Accepted: 11/29/2023] [Indexed: 12/08/2023]
Abstract
The paraventricular nucleus of the thalamus (PVT) sends dense projections to the shell of the nucleus accumbens (NAcSh), dorsolateral region of the bed nucleus of the stria terminalis (BSTDL) and the lateral region of central nucleus of the amygdala (CeL). Projection specific modulation of these pathways has been shown to regulate appetitive and aversive behavioral responses. The present investigation applied an intersectional monosynaptic rabies tracing approach to quantify the brain-wide sources of afferent input to PVT neurons that primarily project to the NAcSh, BSTDL and CeL. The results demonstrate that these projection neurons receive monosynaptic input from similar brain regions. The prefrontal cortex and the ventral subiculum of the hippocampus were major sources of input to the PVT projection neurons. In addition, the lateral septal nucleus, thalamic reticular nucleus and the hypothalamic medial preoptic area, dorsomedial, ventromedial, and arcuate nuclei were sources of input. The subfornical organ, parasubthalamic nucleus, periaqueductal gray matter, lateral parabrachial nucleus, and nucleus of the solitary tract were consistent but lesser sources of input. This input-output relationship is consistent with recent observations that PVT neurons have axons that bifurcate extensively to divergently innervate the NAcSh, BSTDL and CeL.
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Affiliation(s)
- Shuang Hong Li
- Department of Oral Biology, Dr. Gerald Niznick College of Dentistry, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba R3E 0W2, Canada
| | - Sa Li
- Department of Oral Biology, Dr. Gerald Niznick College of Dentistry, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba R3E 0W2, Canada
| | - Gilbert J Kirouac
- Department of Oral Biology, Dr. Gerald Niznick College of Dentistry, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba R3E 0W2, Canada; Department of Psychiatry, Max Rady College of Medicine, Rady Faculty of Health Sciences, University of Manitoba, Winnipeg, Manitoba R3E 0W2, Canada.
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19
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Beas S, Khan I, Gao C, Loewinger G, Macdonald E, Bashford A, Rodriguez-Gonzalez S, Pereira F, Penzo MA. Dissociable encoding of motivated behavior by parallel thalamo-striatal projections. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2023.07.07.548113. [PMID: 37781624 PMCID: PMC10541145 DOI: 10.1101/2023.07.07.548113] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/03/2023]
Abstract
The successful pursuit of goals requires the coordinated execution and termination of actions that lead to positive outcomes. This process is thought to rely on motivational states that are guided by internal drivers, such as hunger or fear. However, the mechanisms by which the brain tracks motivational states to shape instrumental actions are not fully understood. The paraventricular nucleus of the thalamus (PVT) is a midline thalamic nucleus that shapes motivated behaviors via its projections to the nucleus accumbens (NAc)1-8 and monitors internal state via interoceptive inputs from the hypothalamus and brainstem3,9-14. Recent studies indicate that the PVT can be subdivided into two major neuronal subpopulations, namely PVTD2(+) and PVTD2(-), which differ in genetic identity, functionality, and anatomical connectivity to other brain regions, including the NAc4,15,16. In this study, we used fiber photometry to investigate the in vivo dynamics of these two distinct PVT neuronal types in mice performing a reward foraging-like behavioral task. We discovered that PVTD2(+) and PVTD2(-) neurons encode the execution and termination of goal-oriented actions, respectively. Furthermore, activity in the PVTD2(+) neuronal population mirrored motivation parameters such as vigor and satiety. Similarly, PVTD2(-) neurons, also mirrored some of these parameters but to a much lesser extent. Importantly, these features were largely preserved when activity in PVT projections to the NAc was selectively assessed. Collectively, our results highlight the existence of two parallel thalamo-striatal projections that participate in the dynamic regulation of goal pursuits and provide insight into the mechanisms by which the brain tracks motivational states to shape instrumental actions.
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Affiliation(s)
- Sofia Beas
- Unit on the Neurobiology of Affective Memory, National Institute of Mental Health, Bethesda, MD, USA
- Department of Neurobiology, University of Alabama at Birmingham, Birmingham, AL, USA
| | - Isbah Khan
- Unit on the Neurobiology of Affective Memory, National Institute of Mental Health, Bethesda, MD, USA
| | - Claire Gao
- Unit on the Neurobiology of Affective Memory, National Institute of Mental Health, Bethesda, MD, USA
| | - Gabriel Loewinger
- Machine Learning Team, National Institute of Mental Health, Bethesda, MD, USA
| | - Emma Macdonald
- Unit on the Neurobiology of Affective Memory, National Institute of Mental Health, Bethesda, MD, USA
| | - Alison Bashford
- Unit on the Neurobiology of Affective Memory, National Institute of Mental Health, Bethesda, MD, USA
| | | | - Francisco Pereira
- Machine Learning Team, National Institute of Mental Health, Bethesda, MD, USA
| | - Mario A. Penzo
- Unit on the Neurobiology of Affective Memory, National Institute of Mental Health, Bethesda, MD, USA
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20
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Wang H, Flores RJ, Yarur HE, Limoges A, Bravo-Rivera H, Casello SM, Loomba N, Enriquez-Traba J, Arenivar M, Wang Q, Ganley R, Ramakrishnan C, Fenno LE, Kim Y, Deisseroth K, Or G, Dong C, Hoon MA, Tian L, Tejeda HA. Prefrontal cortical dynorphin peptidergic transmission constrains threat-driven behavioral and network states. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.01.08.574700. [PMID: 38283686 PMCID: PMC10822088 DOI: 10.1101/2024.01.08.574700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/30/2024]
Abstract
Prefrontal cortical (PFC) circuits provide top-down control of threat reactivity. This includes ventromedial PFC (vmPFC) circuitry, which plays a role in suppressing fear-related behavioral states. Dynorphin (Dyn) has been implicated in mediating negative affect and mal-adaptive behaviors induced by severe threats and is expressed in limbic circuits, including the vmPFC. However, there is a critical knowledge gap in our understanding of how vmPFC Dyn-expressing neurons and Dyn transmission detect threats and regulate expression of defensive behaviors. Here, we demonstrate that Dyn cells are broadly activated by threats and release Dyn locally in the vmPFC to limit passive defensive behaviors. We further demonstrate that vmPFC Dyn-mediated signaling promotes a switch of vmPFC networks to a fear-related state. In conclusion, we reveal a previously unknown role of vmPFC Dyn neurons and Dyn neuropeptidergic transmission in suppressing defensive behaviors in response to threats via state-driven changes in vmPFC networks.
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Affiliation(s)
- Huikun Wang
- Neuromodulation and Synaptic Integration Unit, National Institute of Mental Health Intramural Research Program, National Institutes of Health, Bethesda, MD, USA
| | - Rodolfo J. Flores
- Neuromodulation and Synaptic Integration Unit, National Institute of Mental Health Intramural Research Program, National Institutes of Health, Bethesda, MD, USA
| | - Hector E. Yarur
- Neuromodulation and Synaptic Integration Unit, National Institute of Mental Health Intramural Research Program, National Institutes of Health, Bethesda, MD, USA
| | - Aaron Limoges
- Neuromodulation and Synaptic Integration Unit, National Institute of Mental Health Intramural Research Program, National Institutes of Health, Bethesda, MD, USA
- Columbia University - NIH Graduate Partnership Program, National Institutes of Health, Bethesda, MD, USA
| | - Hector Bravo-Rivera
- Neuromodulation and Synaptic Integration Unit, National Institute of Mental Health Intramural Research Program, National Institutes of Health, Bethesda, MD, USA
| | - Sanne M. Casello
- Neuromodulation and Synaptic Integration Unit, National Institute of Mental Health Intramural Research Program, National Institutes of Health, Bethesda, MD, USA
| | - Niharika Loomba
- Neuromodulation and Synaptic Integration Unit, National Institute of Mental Health Intramural Research Program, National Institutes of Health, Bethesda, MD, USA
| | - Juan Enriquez-Traba
- Neuromodulation and Synaptic Integration Unit, National Institute of Mental Health Intramural Research Program, National Institutes of Health, Bethesda, MD, USA
| | - Miguel Arenivar
- Neuromodulation and Synaptic Integration Unit, National Institute of Mental Health Intramural Research Program, National Institutes of Health, Bethesda, MD, USA
- Brown University - NIH Graduate Partnership Program, National Institutes of Health, Bethesda, MD, USA
| | - Queenie Wang
- Neuromodulation and Synaptic Integration Unit, National Institute of Mental Health Intramural Research Program, National Institutes of Health, Bethesda, MD, USA
| | - Robert Ganley
- Molecular Genetics Section, Laboratory of Sensory Biology, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, USA
| | - Charu Ramakrishnan
- Departments of Bioengineering and Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA
| | - Lief E Fenno
- Departments of Bioengineering and Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA
- Current affiliation: Departments of Psychiatry and Neuroscience, University of Texas, Austin, Dell Medical School, Austin, TX, USA
| | - Yoon Kim
- Departments of Bioengineering and Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA
| | - Karl Deisseroth
- Departments of Bioengineering and Psychiatry and Behavioral Sciences, Stanford University, Stanford, CA, USA
| | - Grace Or
- Department of Biochemistry and Molecular Medicine, University of California, Davis, Davis, CA, USA
| | - Chunyang Dong
- Department of Biochemistry and Molecular Medicine, University of California, Davis, Davis, CA, USA
| | - Mark A. Hoon
- Molecular Genetics Section, Laboratory of Sensory Biology, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, MD, USA
| | - Lin Tian
- Department of Biochemistry and Molecular Medicine, University of California, Davis, Davis, CA, USA
- Max Planck Florida Institute for Neuroscience, Jupiter, FL, USA
| | - Hugo A. Tejeda
- Neuromodulation and Synaptic Integration Unit, National Institute of Mental Health Intramural Research Program, National Institutes of Health, Bethesda, MD, USA
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21
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Fan S, Guo W, Xiao D, Guan M, Liao T, Peng S, Feng A, Wang Z, Yin H, Li M, Chen J, Xiong W. Microbiota-gut-brain axis drives overeating disorders. Cell Metab 2023; 35:2011-2027.e7. [PMID: 37794596 DOI: 10.1016/j.cmet.2023.09.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2023] [Revised: 08/10/2023] [Accepted: 09/11/2023] [Indexed: 10/06/2023]
Abstract
Overeating disorders (ODs), usually stemming from dieting history and stress, remain a pervasive issue in contemporary society, with the pathological mechanisms largely unresolved. Here, we show that alterations in intestinal microbiota are responsible for the excessive intake of palatable foods in OD mice and patients with bulimia nervosa (BN). Stress combined with a history of dieting causes significant changes in the microbiota and the intestinal metabolism, which disinhibit the vagus nerve terminals in the gut and thereby lead to a subsequent hyperactivation of the gut-brain axis passing through the vagus, the solitary tract nucleus, and the paraventricular nucleus of the thalamus. The transplantation of a probiotic Faecalibacterium prausnitzii or dietary supplement of key metabolites restores the activity of the gut-to-brain pathway and thereby alleviates the OD symptoms. Thus, our study delineates how the microbiota-gut-brain axis mediates energy balance, unveils the underlying pathogenesis of the OD, and provides potential therapeutic strategies.
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Affiliation(s)
- Sijia Fan
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230001, China
| | - Weiwei Guo
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230001, China
| | - Dan Xiao
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230001, China
| | - Mengyuan Guan
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230001, China
| | - Tiepeng Liao
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230001, China; Anhui Province Key Laboratory of Biomedical Imaging and Intelligent Processing, Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, Hefei 230088, China
| | - Sufang Peng
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Airong Feng
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230001, China
| | - Ziyi Wang
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230001, China
| | - Hao Yin
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230001, China
| | - Min Li
- Department of Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei 230026, China.
| | - Jue Chen
- Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China.
| | - Wei Xiong
- Department of Neurology, The First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, Hefei National Research Center for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230001, China; Anhui Province Key Laboratory of Biomedical Imaging and Intelligent Processing, Institute of Artificial Intelligence, Hefei Comprehensive National Science Center, Hefei 230088, China; Anhui Province Key Laboratory of Biomedical Aging Research, Hefei 230026, China.
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22
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Shima Y, Skibbe H, Sasagawa Y, Fujimori N, Iwayama Y, Isomura-Matoba A, Yano M, Ichikawa T, Nikaido I, Hattori N, Kato T. Distinctiveness and continuity in transcriptome and connectivity in the anterior-posterior axis of the paraventricular nucleus of the thalamus. Cell Rep 2023; 42:113309. [PMID: 37862168 DOI: 10.1016/j.celrep.2023.113309] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 09/20/2023] [Accepted: 10/04/2023] [Indexed: 10/22/2023] Open
Abstract
The paraventricular nucleus of the thalamus (PVT) projects axons to multiple areas, mediates a wide range of behaviors, and exhibits regional heterogeneity in both functions and axonal projections. Still, questions regarding the cell types present in the PVT and the extent of their differences remain inadequately addressed. We applied single-cell RNA sequencing to depict the transcriptomic characteristics of mouse PVT neurons. We found that one of the most significant variances in the PVT transcriptome corresponded to the anterior-posterior axis. While the single-cell transcriptome classified PVT neurons into five types, our transcriptomic and histological analyses showed continuity among the cell types. We discovered that anterior and posterior subpopulations had nearly non-overlapping projection patterns, while another population showed intermediate patterns. In addition, these subpopulations responded differently to appetite-related neuropeptides, with their activation showing opposing effects on food consumption. Our studies unveiled the contrasts and the continuity of PVT neurons that underpin their function.
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Affiliation(s)
- Yasuyuki Shima
- Neurodegenerative Disorders Collaborative Laboratory, RIKEN, Wako, Saitama 351-0198, Japan; Laboratory of Molecular Dynamics of Mental Disorders, RIKEN, Wako, Saitama 351-0198, Japan.
| | - Henrik Skibbe
- Brain Image Analysis Unit, RIKEN, Wako, Saitama 351-0198, Japan
| | - Yohei Sasagawa
- Laboratory for Bioinformatics Research, Center for Biosystems Dynamics Research, RIKEN, Wako, Saitama 351-0198, Japan; Department of Functional Genome Informatics, Division of Biological Data Science, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Hongo, Bunkyo City, Tokyo 113-8519, Japan
| | - Noriko Fujimori
- Laboratory of Molecular Dynamics of Mental Disorders, RIKEN, Wako, Saitama 351-0198, Japan; Support Unit for Bio-Material Analysis, Research Resource Division, Center for Brain Science, RIKEN, Wako, Saitama 351-0198, Japan
| | - Yoshimi Iwayama
- Laboratory for Bioinformatics Research, Center for Biosystems Dynamics Research, RIKEN, Wako, Saitama 351-0198, Japan; Department of Functional Genome Informatics, Division of Biological Data Science, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Hongo, Bunkyo City, Tokyo 113-8519, Japan
| | - Ayako Isomura-Matoba
- Laboratory for Bioinformatics Research, Center for Biosystems Dynamics Research, RIKEN, Wako, Saitama 351-0198, Japan
| | - Minoru Yano
- Department of Functional Genome Informatics, Division of Biological Data Science, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Hongo, Bunkyo City, Tokyo 113-8519, Japan
| | - Takumi Ichikawa
- Laboratory for Bioinformatics Research, Center for Biosystems Dynamics Research, RIKEN, Wako, Saitama 351-0198, Japan; Department of Functional Genome Informatics, Division of Biological Data Science, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Hongo, Bunkyo City, Tokyo 113-8519, Japan
| | - Itoshi Nikaido
- Laboratory for Bioinformatics Research, Center for Biosystems Dynamics Research, RIKEN, Wako, Saitama 351-0198, Japan; Department of Functional Genome Informatics, Division of Biological Data Science, Medical Research Institute, Tokyo Medical and Dental University (TMDU), Hongo, Bunkyo City, Tokyo 113-8519, Japan
| | - Nobutaka Hattori
- Neurodegenerative Disorders Collaborative Laboratory, RIKEN, Wako, Saitama 351-0198, Japan; Department of Neurology, Juntendo University, Hongo, Bunkyo City, Tokyo 113-8421, Japan
| | - Tadafumi Kato
- Laboratory of Molecular Dynamics of Mental Disorders, RIKEN, Wako, Saitama 351-0198, Japan; Department of Psychiatry, Juntendo University, Hongo, Bunkyo City, Tokyo 113-8421, Japan; Department of Molecular Pathology of Mood Disorders, Juntendo University, Hongo, Bunkyo City, Tokyo 113-8421, Japan.
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23
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Kooiker CL, Chen Y, Birnie MT, Baram TZ. Genetic Tagging Uncovers a Robust, Selective Activation of the Thalamic Paraventricular Nucleus by Adverse Experiences Early in Life. BIOLOGICAL PSYCHIATRY GLOBAL OPEN SCIENCE 2023; 3:746-755. [PMID: 37881549 PMCID: PMC10593902 DOI: 10.1016/j.bpsgos.2023.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2022] [Revised: 01/09/2023] [Accepted: 01/13/2023] [Indexed: 01/26/2023] Open
Abstract
Background Early-life adversity (ELA) is associated with increased risk for mood disorders, including depression and substance use disorders. These disorders are characterized by impaired reward-related behaviors, suggesting compromised operations of reward-related brain circuits. However, the brain regions engaged by ELA that mediate these enduring consequences of ELA remain largely unknown. In an animal model of ELA, we identified aberrant reward-seeking behaviors, a discovery that provides a framework for assessing the underlying circuits. Methods Employing TRAP2 (targeted recombination in active populations) male and female mice, in which neurons activated within a defined time frame are permanently tagged, we compared ELA- and control-reared mice, assessing the quantity and distribution of ELA-related neuronal activation. After validating the TRAP2 results using native c-Fos labeling, we defined the molecular identity of this population of activated neurons. Results We uniquely demonstrated that the TRAP2 system is feasible and efficacious in neonatal mice. Surprisingly, the paraventricular nucleus of the thalamus was robustly and almost exclusively activated by ELA and was the only region distinguishing ELA from typical rearing. Remarkably, a large proportion of ELA-activated paraventricular nucleus of the thalamus neurons expressed CRF1, the receptor for the stress-related peptide, corticotropin-releasing hormone, but these neurons did not express corticotropin-releasing hormone itself. Conclusions The paraventricular nucleus of the thalamus, an important component of reward circuits that is known to encode remote, emotionally salient experiences to influence future motivated behaviors, encodes adverse experiences as remote as those occurring during the early postnatal period and is thus poised to contribute to the enduring deficits in reward-related behaviors consequent to ELA.
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Affiliation(s)
- Cassandra L. Kooiker
- Department of Anatomy and Neurobiology, University of California Irvine, Irvine, California
| | - Yuncai Chen
- Department of Pediatrics, University of California Irvine, Irvine, California
| | - Matthew T. Birnie
- Department of Pediatrics, University of California Irvine, Irvine, California
| | - Tallie Z. Baram
- Department of Anatomy and Neurobiology, University of California Irvine, Irvine, California
- Department of Pediatrics, University of California Irvine, Irvine, California
- Department of Neurology, University of California Irvine, Irvine, California
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24
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Oldham S, Ball G. A phylogenetically-conserved axis of thalamocortical connectivity in the human brain. Nat Commun 2023; 14:6032. [PMID: 37758726 PMCID: PMC10533558 DOI: 10.1038/s41467-023-41722-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023] Open
Abstract
The thalamus enables key sensory, motor, emotive, and cognitive processes via connections to the cortex. These projection patterns are traditionally considered to originate from discrete thalamic nuclei, however recent work showing gradients of molecular and connectivity features in the thalamus suggests the organisation of thalamocortical connections occurs along a continuous dimension. By performing a joint decomposition of densely sampled gene expression and non-invasive diffusion tractography in the adult human thalamus, we define a principal axis of genetic and connectomic variation along a medial-lateral thalamic gradient. Projections along this axis correspond to an anterior-posterior cortical pattern and are aligned with electrophysiological properties of the cortex. The medial-lateral axis demonstrates phylogenetic conservation, reflects transitions in neuronal subtypes, and shows associations with neurodevelopment and common brain disorders. This study provides evidence for a supra-nuclear axis of thalamocortical organisation characterised by a graded transition in molecular properties and anatomical connectivity.
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Affiliation(s)
- Stuart Oldham
- Developmental Imaging, Murdoch Children's Research Institute, Parkville, VIC, Australia.
- The Turner Institute for Brain and Mental Health, School of Psychological Sciences and Monash Biomedical Imaging, Monash University, Clayton, VIC, Australia.
| | - Gareth Ball
- Developmental Imaging, Murdoch Children's Research Institute, Parkville, VIC, Australia
- Department of Paediatrics, University of Melbourne, Parkville, VIC, Australia
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25
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Greiner EM, Witt ME, Moran SJ, Petrovich GD. Activation patterns in male and female forebrain circuitries during food consumption under novelty. RESEARCH SQUARE 2023:rs.3.rs-3328570. [PMID: 37790415 PMCID: PMC10543437 DOI: 10.21203/rs.3.rs-3328570/v1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/05/2023]
Abstract
The influence of novelty on feeding behavior is significant and can override both homeostatic and hedonic drives due to the uncertainty of potential danger. Previous work found that novel food hypophagia is enhanced in a novel environment and that males habituate faster than females. The current study's aim was to identify the neural substrates of separate effects of food and context novelty. Adult male and female rats were tested for consumption of a novel or family food in either a familiar or in a novel context. Test-induced Fos expression was measured in the amygdalar, thalamic, striatal, and prefrontal cortex regions that are important for appetitive responding, contextual processing, and reward motivation. Food and context novelty induced strikingly different activation patterns. Novel context induced Fos robustly in almost every region analyzed, including the central (CEA) and basolateral complex nuclei of the amygdala, the thalamic paraventricular (PVT) and reuniens nuclei, the nucleus accumbens (ACB), the medial prefrontal cortex prelimbic and infralimbic areas, and the dorsal agranular insular cortex (AI). Novel food induced Fos in a few select regions: the CEA, anterior basomedial nucleus of the amygdala, anterior PVT, and posterior AI. There were also sex differences in activation patterns. The capsular and lateral CEA had greater activation for male groups and the anterior PVT, ACB ventral core and shell had greater activation for female groups. These activation patterns and correlations between regions, suggest that distinct functional circuitries control feeding behavior when food is novel and when eating occurs in a novel environment.
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26
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Nagaeva E, Schäfer A, Linden AM, Elsilä LV, Egorova K, Umemori J, Ryazantseva M, Korpi ER. Somatostatin-Expressing Neurons in the Ventral Tegmental Area Innervate Specific Forebrain Regions and Are Involved in Stress Response. eNeuro 2023; 10:ENEURO.0149-23.2023. [PMID: 37553240 PMCID: PMC10464661 DOI: 10.1523/eneuro.0149-23.2023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2023] [Revised: 07/31/2023] [Accepted: 07/31/2023] [Indexed: 08/10/2023] Open
Abstract
Expanding knowledge about the cellular composition of subcortical brain regions demonstrates large heterogeneity and differences from the cortical architecture. Previously we described three subtypes of somatostatin-expressing (Sst) neurons in the mouse ventral tegmental area (VTA) and showed their local inhibitory action on the neighboring dopaminergic neurons (Nagaeva et al., 2020). Here, we report that Sst+ neurons especially from the anterolateral part of the mouse VTA also project far outside the VTA and innervate forebrain regions that are mainly involved in the regulation of emotional behavior, including the ventral pallidum, lateral hypothalamus, the medial part of the central amygdala, anterolateral division of the bed nucleus of stria terminalis, and paraventricular thalamic nucleus. Deletion of these VTASst neurons in mice affected several behaviors, such as home cage activity, sensitization of locomotor activity to morphine, fear conditioning responses, and reactions to the inescapable stress of forced swimming, often in a sex-dependent manner. Together, these data demonstrate that VTASst neurons have selective projection targets distinct from the main targets of VTA dopamine neurons. VTASst neurons are involved in the regulation of behaviors primarily associated with the stress response, making them a relevant addition to the efferent VTA pathways and stress-related neuronal network.
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Affiliation(s)
- Elina Nagaeva
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland
| | - Annika Schäfer
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland
| | - Anni-Maija Linden
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland
| | - Lauri V. Elsilä
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland
| | - Ksenia Egorova
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland
| | - Juzoh Umemori
- Gene and Cell Technology, A. I. Virtanen Institute for Molecular Science, University of Eastern Finland, 70210 Kuopio, Finland
| | - Maria Ryazantseva
- HiLIFE Neuroscience Center, University of Helsinki, 00014 Helsinki, Finland
| | - Esa R. Korpi
- Department of Pharmacology, Faculty of Medicine, University of Helsinki, 00014 Helsinki, Finland
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27
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Rivera-Irizarry JK, Hámor PU, Rowson SA, Asfouri J, Liu D, Zallar LJ, Garcia AF, Skelly MJ, Pleil KE. Valence and salience encoding by parallel circuits from the paraventricular thalamus to the nucleus accumbens. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.07.03.547570. [PMID: 37461604 PMCID: PMC10349961 DOI: 10.1101/2023.07.03.547570] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2023]
Abstract
The anterior and posterior subregions of the paraventricular thalamus (aPVT and pPVT, respectively) play unique roles in learned behaviors, from fear conditioning to alcohol/drug intake, potentially through differentially organized projections to limbic brain regions including the nucleus accumbens medial shell (mNAcSh). Here, we found that the aPVT projects broadly to the mNAcSh and that the aPVT-mNAcSh circuit encodes positive valence, such that in vivo manipulations of the circuit modulated both innately programmed and learned behavioral responses to positively and negatively valenced stimuli, particularly in females. Further, the endogenous activity of aPVT presynaptic terminals in the mNAcSh was greater in response to positively than negatively valenced stimuli, and the probability of synaptic glutamate release from aPVT neurons in the mNAcSh was higher in females than males. In contrast, we found that the pPVT-mNAcSh circuit encodes stimulus salience regardless of valence. While pPVT-mNAcSh circuit inhibition suppressed behavioral responses in both sexes, circuit activation increased behavioral responses to stimuli only in males. Our results point to circuit-specific stimulus feature encoding by parallel PVT-mNAcSh circuits that have sex-dependent biases in organization and function.
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Biro L, Miskolczi C, Szebik H, Bruzsik B, Varga ZK, Szente L, Toth M, Halasz J, Mikics E. Post-weaning social isolation in male mice leads to abnormal aggression and disrupted network organization in the prefrontal cortex: Contribution of parvalbumin interneurons with or without perineuronal nets. Neurobiol Stress 2023; 25:100546. [PMID: 37323648 PMCID: PMC10265620 DOI: 10.1016/j.ynstr.2023.100546] [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: 04/03/2023] [Revised: 05/10/2023] [Accepted: 05/28/2023] [Indexed: 06/17/2023] Open
Abstract
Adverse social experiences during childhood increase the risk of developing aggression-related psychopathologies. The prefrontal cortex (PFC) is a key regulator of social behavior, where experience-dependent network development is tied to the maturation of parvalbumin-positive (PV+) interneurons. Maltreatment in childhood could impact PFC development and lead to disturbances in social behavior during later life. However, our knowledge regarding the impact of early-life social stress on PFC operation and PV+ cell function is still scarce. Here, we used post-weaning social isolation (PWSI) to model early-life social neglect in mice and to study the associated neuronal changes in the PFC, additionally distinguishing between the two main subpopulations of PV+ interneurons, i.e. those without or those enwrapped by perineuronal nets (PNN). For the first time to such detailed extent in mice, we show that PWSI induced disturbances in social behavior, including abnormal aggression, excessive vigilance and fragmented behavioral organization. PWSI mice showed altered resting-state and fighting-induced co-activation patterns between orbitofrontal and medial PFC (mPFC) subregions, with a particularly highly elevated activity in the mPFC. Surprisingly, aggressive interaction was associated with a higher recruitment of mPFC PV+ neurons that were surrounded by PNN in PWSI mice that seemed to mediate the emergence of social deficits. PWSI did not affect the number of PV+ neurons and PNN density, but enhanced PV and PNN intensity as well as cortical and subcortical glutamatergic drive onto mPFC PV+ neurons. Our results suggest that the increased excitatory input of PV+ cells could emerge as a compensatory mechanism for the PV+ neuron-mediated impaired inhibition of mPFC layer 5 pyramidal neurons, since we found lower numbers of GABAergic PV+ puncta on the perisomatic region of these cells. In conclusion, PWSI leads to altered PV-PNN activity and impaired excitatory/inhibitory balance in the mPFC, which possibly contributes to social behavioral disruptions seen in PWSI mice. Our data advances our understanding on how early-life social stress can impact the maturing PFC and lead to the development of social abnormalities in adulthood.
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Affiliation(s)
- Laszlo Biro
- Institute of Experimental Medicine, Laboratory of Translational Behavioural Neuroscience, 1083 Budapest, Szigony utca 43., Hungary
| | - Christina Miskolczi
- Institute of Experimental Medicine, Laboratory of Translational Behavioural Neuroscience, 1083 Budapest, Szigony utca 43., Hungary
- Janos Szentagothai Doctoral School of Neurosciences, Semmelweis University, 1085 Budapest, Ulloi ut 26., Hungary
| | - Huba Szebik
- Institute of Experimental Medicine, Laboratory of Translational Behavioural Neuroscience, 1083 Budapest, Szigony utca 43., Hungary
- Janos Szentagothai Doctoral School of Neurosciences, Semmelweis University, 1085 Budapest, Ulloi ut 26., Hungary
| | - Biborka Bruzsik
- Institute of Experimental Medicine, Laboratory of Translational Behavioural Neuroscience, 1083 Budapest, Szigony utca 43., Hungary
| | - Zoltan Kristof Varga
- Institute of Experimental Medicine, Laboratory of Translational Behavioural Neuroscience, 1083 Budapest, Szigony utca 43., Hungary
| | - Laszlo Szente
- Institute of Experimental Medicine, Laboratory of Translational Behavioural Neuroscience, 1083 Budapest, Szigony utca 43., Hungary
- Janos Szentagothai Doctoral School of Neurosciences, Semmelweis University, 1085 Budapest, Ulloi ut 26., Hungary
| | - Mate Toth
- Institute of Experimental Medicine, Laboratory of Translational Behavioural Neuroscience, 1083 Budapest, Szigony utca 43., Hungary
| | - Jozsef Halasz
- Institute of Experimental Medicine, Laboratory of Translational Behavioural Neuroscience, 1083 Budapest, Szigony utca 43., Hungary
| | - Eva Mikics
- Institute of Experimental Medicine, Laboratory of Translational Behavioural Neuroscience, 1083 Budapest, Szigony utca 43., Hungary
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Zhao T, Wei N, Li T, Chen K, Cui W, Wang Z, Wang F, Lin Y, Zhu J. Transplantation of glutamatergic neuronal precursor cells in the paraventricular thalamus and claustrum facilitates awakening with recovery of consciousness. CNS Neurosci Ther 2023; 29:1785-1804. [PMID: 36880283 PMCID: PMC10324366 DOI: 10.1111/cns.14137] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Revised: 12/09/2022] [Accepted: 02/15/2023] [Indexed: 03/08/2023] Open
Abstract
BACKGROUND Stem cells offer a promising therapeutic strategy for patients with disorders of consciousness (DOC) after severe traumatic brain injury (TBI), but the optimal transplantation sites and cells are not clear. Although the paraventricular thalamus (PVT) and claustrum (CLA) are associated with consciousness and are candidate transplantation targets, few studies have been designed to investigate this possibility. METHODS Controlled cortical injury (CCI) was performed to establish a mouse model of DOC. CCI-DOC paradigm was established to investigate the role of excitatory neurons of PVT and CLA in disorders of consciousness. The role of excitatory neuron transplantation in promoting arousal and recovery of consciousness was determined by optogenetics, chemogenetics, electrophysiology, Western blot, RT-PCR, double immunofluorescence labeling, and neurobehavioral experiments. RESULTS After CCI-DOC, neuronal apoptosis was found to be concentrated in the PVT and CLA. Prolonged awaking latency and cognitive decline were also seen after destruction of the PVT and CLA, suggesting that the PVT and CLA may be key nuclei in DOC. Awaking latency and cognitive performance could be altered by inhibiting or activating excitatory neurons, implying that excitatory neurons may play an important role in DOC. Furthermore, we found that the PVT and CLA function differently, with the PVT mainly involved in arousal maintenance while the CLA plays a role mainly in the generation of conscious content. Finally, we found that by transplanting excitatory neuron precursor cells in the PVT and CLA, respectively, we could facilitate awakening with recovery of consciousness, which was mainly manifested by shortened awaking latency, reduced duration of loss of consciousness (LOC), enhanced cognitive ability, enhanced memory, and improved limb sensation. CONCLUSION In this study, we found that the deterioration in the level and content of consciousness after TBI was associated with a large reduction in glutamatergic neurons within the PVT and CLA. Transplantation of glutamatergic neuronal precursor cells could play a beneficial role in promoting arousal and recovery of consciousness. Thus, these findings have the potential to provide a favorable basis for promoting awakening and recovery in patients with DOC.
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Affiliation(s)
- Tong Zhao
- Department of Neurosurgery, The First Affiliated Hospital, Neurosurgery Research InstituteFujian Medical UniversityFuzhouFujianChina
- Department of Neurosurgery, State Key laboratory of Medical Neurobiology, Shanghai Key Laboratory of Brain Function and Regeneration, Shanghai Medical College, Fudan University Huashan Hospital, Institute of Brain ScienceFudan UniversityShanghaiChina
| | - Naili Wei
- Department of NeurosurgeryThe First Affiliated Hospital of Shantou University Medical CollegeShantouGuangdongChina
| | - Tianwen Li
- Department of Neurosurgery, State Key laboratory of Medical Neurobiology, Shanghai Key Laboratory of Brain Function and Regeneration, Shanghai Medical College, Fudan University Huashan Hospital, Institute of Brain ScienceFudan UniversityShanghaiChina
| | - Kezhu Chen
- Department of Neurosurgery, State Key laboratory of Medical Neurobiology, Shanghai Key Laboratory of Brain Function and Regeneration, Shanghai Medical College, Fudan University Huashan Hospital, Institute of Brain ScienceFudan UniversityShanghaiChina
| | - Wenqiang Cui
- Department of NeurologyAffiliated Hospital of Shandong University of Traditional Chinese MedicineJinanShandongChina
| | - Zhifu Wang
- Department of Neurosurgery, State Key laboratory of Medical Neurobiology, Shanghai Key Laboratory of Brain Function and Regeneration, Shanghai Medical College, Fudan University Huashan Hospital, Institute of Brain ScienceFudan UniversityShanghaiChina
| | - Fan Wang
- Department of NeurologyPeking University Third HospitalBeijingChina
| | - Yuanxiang Lin
- Department of Neurosurgery, The First Affiliated Hospital, Neurosurgery Research InstituteFujian Medical UniversityFuzhouFujianChina
| | - Jianhong Zhu
- Department of Neurosurgery, State Key laboratory of Medical Neurobiology, Shanghai Key Laboratory of Brain Function and Regeneration, Shanghai Medical College, Fudan University Huashan Hospital, Institute of Brain ScienceFudan UniversityShanghaiChina
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Jing P, Shan Q. Exogenous oxytocin microinjection into the nucleus accumbens shell attenuates social dominance in group-housed male mice. Physiol Behav 2023:114253. [PMID: 37270150 DOI: 10.1016/j.physbeh.2023.114253] [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: 03/29/2023] [Revised: 05/29/2023] [Accepted: 05/31/2023] [Indexed: 06/05/2023]
Abstract
The nucleus accumbens (NAc), a part of the brain's limbic system, is involved in a variety of brain functions, including reward motivation and social hierarchy. Here, the study investigated the effect of intra-NAc different subregions microinjections of oxytocin on social hierarchy regulation. The hierarchical ranking of group-housed male mice in laboratory settings was determined through the tube test, and a new reliable and robust behavior assay-the mate competition test-was proposed. The mice were randomly divided into two groups, and the bilateral guide cannula was implanted into the shell and core of the NAc, respectively. After social dominance stabilized, changes in social hierarchy were determined through the tube test, warm spot, and mate competition tests. Intra-NAc shell microinjections of oxytocin (0.5 μg/site), but not the core (0.5 μg/site), significantly reduced the social dominance of mice. In addition, oxytocin microinjection into both the shell and core of the NAc significantly increased locomotor ability without affecting anxious behaviors. These findings are tremendously important in understanding the functions of the NAc subregions for social dominance and are more likely to indicate the potential of an oxytocin therapeutic strategy for psychiatric disorders and social impairments.
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Affiliation(s)
- Pengbo Jing
- Laboratory for Synaptic Plasticity, Shantou University Medical College, Shantou, Guangdong, 515041, China
| | - Qiang Shan
- Laboratory for Synaptic Plasticity, Shantou University Medical College, Shantou, Guangdong, 515041, China.
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Rodríguez FD, Sánchez ML, Coveñas R. Neurotensin and Alcohol Use Disorders: Towards a Pharmacological Treatment. Int J Mol Sci 2023; 24:ijms24108656. [PMID: 37240004 DOI: 10.3390/ijms24108656] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2023] [Revised: 05/06/2023] [Accepted: 05/10/2023] [Indexed: 05/28/2023] Open
Abstract
Harmful alcohol use is responsible for a group of disorders collectively named alcohol use disorders (AUDs), according to the DSM-5 classification. The damage induced by alcohol depends on the amount, time, and consumption patterns (continuous and heavy episodic drinking). It affects individual global well-being and social and familial environments with variable impact. Alcohol addiction manifests with different degrees of organ and mental health detriment for the individual, exhibiting two main traits: compulsive drinking and negative emotional states occurring at withdrawal, frequently causing relapse episodes. Numerous individual and living conditions, including the concomitant use of other psychoactive substances, lie in the complexity of AUD. Ethanol and its metabolites directly impact the tissues and may cause local damage or alter the homeostasis of brain neurotransmission, immunity scaffolding, or cell repair biochemical pathways. Brain modulator and neurotransmitter-assembled neurocircuitries govern reward, reinforcement, social interaction, and consumption of alcohol behaviors in an intertwined manner. Experimental evidence supports the participation of neurotensin (NT) in preclinical models of alcohol addiction. For example, NT neurons in the central nucleus of the amygdala projecting to the parabrachial nucleus strengthen alcohol consumption and preference. In addition, the levels of NT in the frontal cortex were found to be lower in rats bred to prefer alcohol to water in a free alcohol-water choice compared to wild-type animals. NT receptors 1 and 2 seem to be involved in alcohol consumption and alcohol effects in several models of knockout mice. This review aims to present an updated picture of the role of NT systems in alcohol addiction and the possible use of nonpeptide ligands modulating the activity of the NT system, applied to experimental animal models of harmful drinking behavior mimicking alcohol addiction leading to health ruin in humans.
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Affiliation(s)
- Francisco D Rodríguez
- Department of Biochemistry and Molecular Biology, Faculty of Chemical Sciences, University of Salamanca, 37008 Salamanca, Spain
- Group GIR-USAL: BMD (Bases Moleculares del Desarrollo), University of Salamanca, 37008 Salamanca, Spain
| | - Manuel Lisardo Sánchez
- Laboratory of Neuroanatomy of the Peptidergic Systems, Institute of Neurosciences of Castilla and León (INCYL), University of Salamanca, C/Pintor Fernando Gallego 1, 37007 Salamanca, Spain
| | - Rafael Coveñas
- Group GIR-USAL: BMD (Bases Moleculares del Desarrollo), University of Salamanca, 37008 Salamanca, Spain
- Laboratory of Neuroanatomy of the Peptidergic Systems, Institute of Neurosciences of Castilla and León (INCYL), University of Salamanca, C/Pintor Fernando Gallego 1, 37007 Salamanca, Spain
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Rao STRB, Turek I, Ratcliffe J, Beckham S, Cianciarulo C, Adil SSBMY, Kettle C, Whelan DR, Irving HR. 5-HT 3 Receptors on Mitochondria Influence Mitochondrial Function. Int J Mol Sci 2023; 24:ijms24098301. [PMID: 37176009 PMCID: PMC10179570 DOI: 10.3390/ijms24098301] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2023] [Revised: 04/30/2023] [Accepted: 05/01/2023] [Indexed: 05/15/2023] Open
Abstract
The 5-hydroxytryptamine 3 (5-HT3) receptor belongs to the pentameric ligand-gated cation channel superfamily. Humans have five different 5-HT3 receptor subunits: A to E. The 5-HT3 receptors are located on the cell membrane, but a previous study suggested that mitochondria could also contain A subunits. In this article, we explored the distribution of 5-HT3 receptor subunits in intracellular and cell-free mitochondria. Organelle prediction software supported the localization of the A and E subunits on the inner membrane of the mitochondria. We transiently transfected HEK293T cells that do not natively express the 5-HT3 receptor with an epitope and fluorescent protein-tagged 5HT3A and 5HT3E subunits. Fluorescence microscopy and cell fractionation indicated that both subunits, A and E, localized to the mitochondria, while transmission electron microscopy revealed the location of the subunits on the mitochondrial inner membrane, where they could form heteromeric complexes. Cell-free mitochondria isolated from cell culture media colocalized with the fluorescent signal for A subunits. The presence of A and E subunits influenced changes in the membrane potential and mitochondrial oxygen consumption rates upon exposure to serotonin; this was inhibited by pre-treatment with ondansetron. Therefore, it is likely that the 5-HT3 receptors present on mitochondria directly impact mitochondrial function and that this may have therapeutic implications.
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Affiliation(s)
- Santosh T R B Rao
- La Trobe Institute for Molecular Science, La Trobe University, P.O. Box 199, Bendigo, VIC 3552, Australia
- Department of Rural Clinical Sciences, La Trobe University, P.O. Box 199, Bendigo, VIC 3552, Australia
| | - Ilona Turek
- La Trobe Institute for Molecular Science, La Trobe University, P.O. Box 199, Bendigo, VIC 3552, Australia
- Department of Rural Clinical Sciences, La Trobe University, P.O. Box 199, Bendigo, VIC 3552, Australia
| | - Julian Ratcliffe
- La Trobe Institute for Molecular Science, La Trobe University, P.O. Box 199, Bendigo, VIC 3552, Australia
- Bio Imaging Platform, La Trobe University, Kingsbury Dr, Bundoora, VIC 3086, Australia
| | - Simone Beckham
- Regional Science Operations, La Trobe University, P.O. Box 199, Bendigo, VIC 3552, Australia
| | - Cassandra Cianciarulo
- La Trobe Institute for Molecular Science, La Trobe University, P.O. Box 199, Bendigo, VIC 3552, Australia
- Department of Rural Clinical Sciences, La Trobe University, P.O. Box 199, Bendigo, VIC 3552, Australia
| | - Siti S B M Y Adil
- Department of Rural Clinical Sciences, La Trobe University, P.O. Box 199, Bendigo, VIC 3552, Australia
| | - Christine Kettle
- La Trobe Institute for Molecular Science, La Trobe University, P.O. Box 199, Bendigo, VIC 3552, Australia
- Department of Rural Clinical Sciences, La Trobe University, P.O. Box 199, Bendigo, VIC 3552, Australia
| | - Donna R Whelan
- La Trobe Institute for Molecular Science, La Trobe University, P.O. Box 199, Bendigo, VIC 3552, Australia
- Department of Rural Clinical Sciences, La Trobe University, P.O. Box 199, Bendigo, VIC 3552, Australia
| | - Helen R Irving
- La Trobe Institute for Molecular Science, La Trobe University, P.O. Box 199, Bendigo, VIC 3552, Australia
- Department of Rural Clinical Sciences, La Trobe University, P.O. Box 199, Bendigo, VIC 3552, Australia
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Smith-Osborne L, Duong A, Resendez A, Palme R, Fadok JP. Female dominance hierarchies influence responses to psychosocial stressors. Curr Biol 2023; 33:1535-1549.e5. [PMID: 37003262 PMCID: PMC10321215 DOI: 10.1016/j.cub.2023.03.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 01/26/2023] [Accepted: 03/07/2023] [Indexed: 04/03/2023]
Abstract
Social species form dominance hierarchies to ensure survival and promote reproductive success. Traditionally studied in males, rodent hierarchies are considered despotic, and dominant social rank results from a history of winning agonistic encounters. By contrast, female hierarchies are thought to be less despotic, and rank is conferred by intrinsic traits. Both social buffering and elevated social status confer resilience to depression, anxiety, and other consequences of chronic stress. Here, we investigate whether female social hierarchies and individual traits related to social rank likewise influence stress resilience. We observe the formation of dyadic female hierarchies under varying conditions of ambient light and circadian phase and subject mice to two forms of chronic psychosocial stress: social isolation or social instability. We find that stable female hierarchies emerge rapidly in dyads. Individual behavioral and endocrinological traits are characteristic of rank, some of which are circadian phase dependent. Further, female social rank is predicted by behavior and stress status prior to social introduction. Other behavioral characteristics suggest that rank is motivation-based, indicating that female rank identity serves an evolutionarily relevant purpose. Rank is associated with alterations in behavior in response to social instability stress and prolonged social isolation, but the different forms of stress produce disparate rank responses in endocrine status. Histological examination of c-Fos protein expression identified brain regions that respond to social novelty or social reunion following chronic isolation in a rank-specific manner. Collectively, female rank is linked to neurobiology, and hierarchies exert context-specific influence upon stress outcomes.
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Affiliation(s)
- Lydia Smith-Osborne
- Department of Psychology, Tulane University, New Orleans, LA 70118, USA; Tulane National Primate Research Center, Covington, LA 70433, USA.
| | - Anh Duong
- Department of Psychology, Tulane University, New Orleans, LA 70118, USA; Neuroscience Program, Tulane University, New Orleans, LA 70118, USA
| | - Alexis Resendez
- Department of Psychology, Tulane University, New Orleans, LA 70118, USA; Tulane Brain Institute, Tulane University, New Orleans, LA 70118, USA
| | - Rupert Palme
- Department of Biomedical Sciences, University of Veterinary Medicine, Veterinärplatz 1, 1210 Vienna, Austria
| | - Jonathan P Fadok
- Department of Psychology, Tulane University, New Orleans, LA 70118, USA; Tulane Brain Institute, Tulane University, New Orleans, LA 70118, USA.
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Venkataraman A, Dias BG. Expanding the canon: An inclusive neurobiology of thalamic and subthalamic fear circuits. Neuropharmacology 2023; 226:109380. [PMID: 36572176 PMCID: PMC9984284 DOI: 10.1016/j.neuropharm.2022.109380] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 12/09/2022] [Accepted: 12/13/2022] [Indexed: 12/24/2022]
Abstract
Appropriate expression of fear in the face of threats in the environment is essential for survival. The sustained expression of fear in the absence of threat signals is a central pathological feature of trauma- and anxiety-related disorders. Our understanding of the neural circuitry that controls fear inhibition coalesces around the amygdala, hippocampus, and prefrontal cortex. By discussing thalamic and sub-thalamic influences on fear-related learning and expression in this review, we suggest a more inclusive neurobiological framework that expands our canonical view of fear. First, we visit how fear-related learning and expression is influenced by the aforementioned canonical brain regions. Next, we review emerging data that shed light on new roles for thalamic and subthalamic nuclei in fear-related learning and expression. Then, we highlight how these neuroanatomical hubs can modulate fear via integration of sensory and salient stimuli, gating information flow and calibrating behavioral responses, as well as maintaining and updating memory representations. Finally, we propose that the presence of this thalamic and sub-thalamic neuroanatomy in parallel with the tripartite prefrontal cortex-amygdala-hippocampus circuit allows for dynamic modulation of information based on interoceptive and exteroceptive signals. This article is part of the Special Issue on "Fear, Anxiety and PTSD".
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Affiliation(s)
- Archana Venkataraman
- Department of Cellular & Molecular Pharmacology, University of San Francisco, San Francisco, CA, United States
| | - Brian George Dias
- Department of Pediatrics, Keck School of Medicine of USC, Los Angeles, CA, United States; Division of Endocrinology, Children's Hospital Los Angeles, Los Angeles, CA, United States; Developmental Neuroscience and Neurogenetics Program, The Saban Research Institute, Los Angeles, CA, United States.
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Gao C, Gohel CA, Leng Y, Ma J, Goldman D, Levine AJ, Penzo MA. Molecular and spatial profiling of the paraventricular nucleus of the thalamus. eLife 2023; 12:81818. [PMID: 36867023 PMCID: PMC10014079 DOI: 10.7554/elife.81818] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2022] [Accepted: 03/02/2023] [Indexed: 03/04/2023] Open
Abstract
The paraventricular nucleus of the thalamus (PVT) is known to regulate various cognitive and behavioral processes. However, while functional diversity among PVT circuits has often been linked to cellular differences, the molecular identity and spatial distribution of PVT cell types remain unclear. To address this gap, here we used single nucleus RNA sequencing (snRNA-seq) and identified five molecularly distinct PVT neuronal subtypes in the mouse brain. Additionally, multiplex fluorescent in situ hybridization of top marker genes revealed that PVT subtypes are organized by a combination of previously unidentified molecular gradients. Lastly, comparing our dataset with a recently published single-cell sequencing atlas of the thalamus yielded novel insight into the PVT's connectivity with the cortex, including unexpected innervation of auditory and visual areas. This comparison also revealed that our data contains a largely non-overlapping transcriptomic map of multiple midline thalamic nuclei. Collectively, our findings uncover previously unknown features of the molecular diversity and anatomical organization of the PVT and provide a valuable resource for future investigations.
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Affiliation(s)
- Claire Gao
- National Institute of Mental HealthBethesdaUnited States
- Department of Neuroscience, Brown UniversityProvidenceUnited States
| | - Chiraag A Gohel
- National Institute on Alcohol Abuse and AlcoholismRockvilleUnited States
| | - Yan Leng
- National Institute of Mental HealthBethesdaUnited States
| | - Jun Ma
- National Institute of Mental HealthBethesdaUnited States
| | - David Goldman
- National Institute on Alcohol Abuse and AlcoholismRockvilleUnited States
| | - Ariel J Levine
- National Institute of Child Health and Human DevelopmentBethesdaUnited States
| | - Mario A Penzo
- National Institute of Mental HealthBethesdaUnited States
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Curtis GR, Gargiulo AT, Carpenter BA, Pirino BE, Hawks A, Coleman SA, Syed NA, Gupta A, Barson JR. Sex-related differences in endogenous pituitary adenylate cyclase-activating polypeptide (PACAP) in the thalamic paraventricular nucleus: Implications for addiction neuroscience. ADDICTION NEUROSCIENCE 2023; 5:100058. [PMID: 36798694 PMCID: PMC9928148 DOI: 10.1016/j.addicn.2022.100058] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/18/2023]
Abstract
Males and females exhibit differences in motivated and affective behavior; however, the neural substrates underlying these differences remain poorly understood. In the paraventricular nucleus of the thalamus (PVT), sex-related differences in neuronal activity have been identified in response to motivated behavior tasks and affective challenges. Within the PVT, the neuropeptide, pituitary adenylate cyclase-activating polypeptide (PACAP), is highly expressed and is also involved in motivated and affective behavior. The purpose of this study was to compare the expression of PACAP mRNA and peptide in the PVT of males and females. Analysis with quantitative real-time PCR in mice revealed that females had significantly higher levels of PACAP mRNA than males in the whole PVT, but no differences in the neuropeptides enkephalin or corticotropin releasing factor (CRF) in this brain region. While in rats, females demonstrated a trend for greater gene expression than males in the anterior/middle and middle/posterior PVT, they again showed no differences in enkephalin or CRF. Analysis with immunofluorescent histochemistry revealed that female mice had significantly more PACAP-containing cells than males as a function of area throughout the PVT, and that female rats had significantly more PACAP-27 and PACAP-38-containing cells than males, both as a percentage of total cells and as a function of PVT area. For PACAP-27, this specifically occurred in the anterior PVT, and for PACAP-38, it occurred throughout the anterior, middle, and posterior PVT. These results suggest that sex-related differences in PVT PACAP may underly some of the established sex-related differences in motivated and affective behavior.
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Affiliation(s)
- Genevieve R. Curtis
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, U.S.A
| | - Andrew T. Gargiulo
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, U.S.A
| | - Brody A. Carpenter
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, U.S.A
| | - Breanne E. Pirino
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, U.S.A
| | - Annie Hawks
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, U.S.A
| | - Sierra A. Coleman
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, U.S.A
| | - Nawal A. Syed
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, U.S.A
| | - Anuranita Gupta
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, U.S.A
| | - Jessica R. Barson
- Department of Neurobiology and Anatomy, Drexel University College of Medicine, Philadelphia, PA 19129, U.S.A
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Valyear MD, Britt JP. A new circuit underlying the renewal of appetitive Pavlovian responses: Commentary on Brown and Chaudhri (2022). Eur J Neurosci 2023; 57:780-783. [PMID: 36700576 DOI: 10.1111/ejn.15924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Accepted: 01/23/2023] [Indexed: 01/27/2023]
Affiliation(s)
- Milan D Valyear
- Department of Psychology, McGill University, Montréal, QC, Canada.,Center for Studies in Behavioral Neurobiology, Concordia University, Montréal, QC, Canada
| | - Jonathan Philip Britt
- Department of Psychology, McGill University, Montréal, QC, Canada.,Center for Studies in Behavioral Neurobiology, Concordia University, Montréal, QC, Canada
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Brown A, Chaudhri N. Optogenetic stimulation of infralimbic cortex projections to the paraventricular thalamus attenuates context-induced renewal. Eur J Neurosci 2023; 57:762-779. [PMID: 36373226 DOI: 10.1111/ejn.15862] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 10/11/2022] [Accepted: 10/27/2022] [Indexed: 11/16/2022]
Abstract
Contexts associated with prior reinforcement can renew extinguished conditioned responding. The prelimbic (PL) and infralimbic (IL) cortices are thought to mediate the expression and suppression of conditioned responding, respectively. Evidence suggests that PL inputs to the paraventricular nucleus of the thalamus (PVT) drive the expression of cue-induced reinstatement of drug seeking and that IL inputs to the PVT mediate fear extinction retrieval. However, the role of these projections in renewal of appetitive Pavlovian conditioned responding is unknown. We trained male and female Long-Evans rats to associate a conditioned stimulus (CS; 10 s white noise) with delivery of a 10% sucrose unconditioned stimulus (US; .2 ml/CS) to a fluid port in a distinct context (Context A). We then extinguished responding by presenting the CS without the US in a different context (Context B). At test, rats were returned to Context A, and optogenetic stimulation was delivered to either the IL-to-PVT or PL-to-PVT pathway during CS presentations. Optically stimulating the IL-to-PVT, but not the PL-to-PVT pathway, attenuated ABA renewal of CS port entries, and this effect was similar in males and females. Further, rats self-administered optical stimulation of the IL-to-PVT but not the PL-to-PVT pathway suggesting that activation of the IL-to-PVT pathway is reinforcing. The effectiveness of optical stimulation parameters to activate neurons in the IL, PL and PVT was confirmed using Fos immunohistochemistry. These findings provide evidence for novel neural mechanisms in renewal of responding to a sucrose-predictive CS, as well as more generally in contextual processing and appetitive associative learning.
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Affiliation(s)
- Alexa Brown
- Center for Studies in Behavioural Neurobiology, Department of Psychology, Concordia University, Montreal, Quebec, Canada
| | - Nadia Chaudhri
- Center for Studies in Behavioural Neurobiology, Department of Psychology, Concordia University, Montreal, Quebec, Canada
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Brown A, Villaruel FR, Chaudhri N. Neural correlates of recall and extinction in a rat model of appetitive Pavlovian conditioning. Behav Brain Res 2023; 440:114248. [PMID: 36496079 DOI: 10.1016/j.bbr.2022.114248] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2022] [Revised: 11/30/2022] [Accepted: 12/04/2022] [Indexed: 12/12/2022]
Abstract
Extinction is a fundamental form of inhibitory learning that is important for adapting to changing environmental contingencies. While numerous studies have investigated the neural correlates of extinction using Pavlovian fear conditioning and appetitive operant reward-seeking procedures, less is known about the neural circuitry mediating the extinction of appetitive Pavlovian responding. Here, we aimed to generate an extensive brain activation map of extinction learning in a rat model of appetitive Pavlovian conditioning. Male Long-Evans rats were trained to associate a conditioned stimulus (CS; 20 s white noise) with the delivery of a 10% sucrose unconditioned stimulus (US; 0.3 ml/CS) to a fluid port. Control groups also received CS presentations, but sucrose was delivered either during the inter-trial interval or in the home-cage. After conditioning, 1 or 6 extinction sessions were conducted in which the CS was presented but sucrose was withheld. We performed Fos immunohistochemistry and network connectivity analyses on a set of cortical, striatal, thalamic, and amygdalar brain regions. Neural activity in the prelimbic cortex, ventral orbitofrontal cortex, nucleus accumbens core, and paraventricular nucleus of the thalamus was greater during recall relative to extinction. Conversely, prolonged extinction following 6 sessions induced increased neural activity in the infralimbic cortex, medial orbitofrontal cortex, and nucleus accumbens shell compared to home-cage controls. All these structures were similarly recruited during recall on the first extinction session. These findings provide novel evidence for the contribution of brain areas and neural networks that are differentially involved in the recall versus extinction of appetitive Pavlovian conditioned responding.
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Affiliation(s)
- Alexa Brown
- Center for Studies in Behavioural Neurobiology, Department of Psychology, Concordia University, Montreal, QC, Canada.
| | - Franz R Villaruel
- Center for Studies in Behavioural Neurobiology, Department of Psychology, Concordia University, Montreal, QC, Canada
| | - Nadia Chaudhri
- Center for Studies in Behavioural Neurobiology, Department of Psychology, Concordia University, Montreal, QC, Canada
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40
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Bouras NN, Mack NR, Gao WJ. Prefrontal modulation of anxiety through a lens of noradrenergic signaling. Front Syst Neurosci 2023; 17:1173326. [PMID: 37139472 PMCID: PMC10149815 DOI: 10.3389/fnsys.2023.1173326] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 03/30/2023] [Indexed: 05/05/2023] Open
Abstract
Anxiety disorders are the most common class of mental illness in the U.S., affecting 40 million individuals annually. Anxiety is an adaptive response to a stressful or unpredictable life event. Though evolutionarily thought to aid in survival, excess intensity or duration of anxiogenic response can lead to a plethora of adverse symptoms and cognitive dysfunction. A wealth of data has implicated the medial prefrontal cortex (mPFC) in the regulation of anxiety. Norepinephrine (NE) is a crucial neuromodulator of arousal and vigilance believed to be responsible for many of the symptoms of anxiety disorders. NE is synthesized in the locus coeruleus (LC), which sends major noradrenergic inputs to the mPFC. Given the unique properties of LC-mPFC connections and the heterogeneous subpopulation of prefrontal neurons known to be involved in regulating anxiety-like behaviors, NE likely modulates PFC function in a cell-type and circuit-specific manner. In working memory and stress response, NE follows an inverted-U model, where an overly high or low release of NE is associated with sub-optimal neural functioning. In contrast, based on current literature review of the individual contributions of NE and the PFC in anxiety disorders, we propose a model of NE level- and adrenergic receptor-dependent, circuit-specific NE-PFC modulation of anxiety disorders. Further, the advent of new techniques to measure NE in the PFC with unprecedented spatial and temporal resolution will significantly help us understand how NE modulates PFC function in anxiety disorders.
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41
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Zhao J, Liu C, Zhang F, Zheng Z, Luo F, Xia J, Wang Y, Zhang Z, Tang J, Song Z, Li S, Xu K, Chen M, Jiang C, He C, Tang L, Hu Z, Gao D, Ren S. A paraventricular thalamus to central amygdala neural circuit modulates acute stress-induced heightened wakefulness. Cell Rep 2022; 41:111824. [PMID: 36516774 DOI: 10.1016/j.celrep.2022.111824] [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: 03/18/2022] [Revised: 10/24/2022] [Accepted: 11/21/2022] [Indexed: 12/15/2022] Open
Abstract
Heightened wakefulness in response to stressors is essential for survival but can also lead to sleep disorders like insomnia. The paraventricular thalamus (PVT) is both a critical thalamic area for wakefulness and a stress-sensitive brain region. However, whether the PVT and its neural circuitries are involved in controlling wakefulness in stress conditions remains unknown. Here, we find that PVT neurons projecting to the central amygdala (CeA) are activated by different stressors. These neurons are wakefulness-active and increase their activities upon sleep to wakefulness transitions. Optogenetic activation of the PVT-CeA circuit evokes transitions from sleep to wakefulness, whereas selectively silencing the activity of this circuit decreases time spent in wakefulness. Specifically, chemogenetic inhibition of CeA-projecting PVT neurons not only alleviates stress responses but also attenuates the acute stress-induced increase of wakefulness. Thus, our results demonstrate that the PVT-CeA circuit controls physiological wakefulness and modulates acute stress-induced heightened wakefulness.
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Affiliation(s)
- Juanjuan Zhao
- Department of Sleep and Psychology, Daping Hospital, Army Medical University, Chongqing 400042, China; Department of Neurology, University-Town Hospital of Chongqing Medical University, Chongqing 401331, China
| | - Chengyu Liu
- Department of Sleep and Psychology, Daping Hospital, Army Medical University, Chongqing 400042, China; Department of Neurology, The Affiliated Rehabilitation Hospital of Chongqing Medical University, Chongqing 400050, China
| | - Fenyan Zhang
- Department of Neurology, University-Town Hospital of Chongqing Medical University, Chongqing 401331, China
| | - Ziyi Zheng
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing 400038, China
| | - Fenlan Luo
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing 400038, China
| | - Jianxia Xia
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing 400038, China
| | - Yaling Wang
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing 400038, China
| | - Zehui Zhang
- Department of Physiology, College of Basic Medical Sciences, Jilin University, Changchun 130021, China
| | - Jinxiang Tang
- Sleep and Psychology Center, Bishan Hospital of Chongqing Medical University, Chongqing 402760, China
| | - Zhenbo Song
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing 400038, China
| | - Siyu Li
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing 400038, China
| | - Kan Xu
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing 400038, China
| | - Mengting Chen
- Department of Sleep and Psychology, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Chenggang Jiang
- Psychology Department, Women and Children's Hospital of Chongqing Medical University, Chongqing Health Center for Women and Children, Chongqing 401147, China
| | - Chao He
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing 400038, China
| | - Ling Tang
- Department of Neurology, University-Town Hospital of Chongqing Medical University, Chongqing 401331, China.
| | - Zhian Hu
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing 400038, China; Chongqing Institute for Brain and Intelligence, Guangyang Bay Laboratory, Chongqing 400064, China.
| | - Dong Gao
- Department of Sleep and Psychology, Daping Hospital, Army Medical University, Chongqing 400042, China.
| | - Shuancheng Ren
- Department of Physiology, College of Basic Medical Sciences, Army Medical University, Chongqing 400038, China; Army 953 Hospital, Army Medical University, Shigatse 857000, China.
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42
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Vollmer KM, Green LM, Grant RI, Winston KT, Doncheck EM, Bowen CW, Paniccia JE, Clarke RE, Tiller A, Siegler PN, Bordieanu B, Siemsen BM, Denton AR, Westphal AM, Jhou TC, Rinker JA, McGinty JF, Scofield MD, Otis JM. An opioid-gated thalamoaccumbal circuit for the suppression of reward seeking in mice. Nat Commun 2022; 13:6865. [PMID: 36369508 PMCID: PMC9652456 DOI: 10.1038/s41467-022-34517-w] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2022] [Accepted: 10/26/2022] [Indexed: 11/13/2022] Open
Abstract
Suppression of dangerous or inappropriate reward-motivated behaviors is critical for survival, whereas therapeutic or recreational opioid use can unleash detrimental behavioral actions and addiction. Nevertheless, the neuronal systems that suppress maladaptive motivated behaviors remain unclear, and whether opioids disengage those systems is unknown. In a mouse model using two-photon calcium imaging in vivo, we identify paraventricular thalamostriatal neuronal ensembles that are inhibited upon sucrose self-administration and seeking, yet these neurons are tonically active when behavior is suppressed by a fear-provoking predator odor, a pharmacological stressor, or inhibitory learning. Electrophysiological, optogenetic, and chemogenetic experiments reveal that thalamostriatal neurons innervate accumbal parvalbumin interneurons through synapses enriched with calcium permeable AMPA receptors, and activity within this circuit is necessary and sufficient for the suppression of sucrose seeking regardless of the behavioral suppressor administered. Furthermore, systemic or intra-accumbal opioid injections rapidly dysregulate thalamostriatal ensemble dynamics, weaken thalamostriatal synaptic innervation of downstream neurons, and unleash reward-seeking behaviors in a manner that is reversed by genetic deletion of thalamic µ-opioid receptors. Overall, our findings reveal a thalamostriatal to parvalbumin interneuron circuit that is both required for the suppression of reward seeking and rapidly disengaged by opioids.
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Affiliation(s)
- Kelsey M Vollmer
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Lisa M Green
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Roger I Grant
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Kion T Winston
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Elizabeth M Doncheck
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Christopher W Bowen
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Jacqueline E Paniccia
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC, 29425, USA
- Anesthesiology and Perioperative Medicine, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Rachel E Clarke
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC, 29425, USA
- Anesthesiology and Perioperative Medicine, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Annika Tiller
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Preston N Siegler
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Bogdan Bordieanu
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Benjamin M Siemsen
- Anesthesiology and Perioperative Medicine, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Adam R Denton
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC, 29425, USA
- Anesthesiology and Perioperative Medicine, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Annaka M Westphal
- Anesthesiology and Perioperative Medicine, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Thomas C Jhou
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Jennifer A Rinker
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Jacqueline F McGinty
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - Michael D Scofield
- Anesthesiology and Perioperative Medicine, Medical University of South Carolina, Charleston, SC, 29425, USA
| | - James M Otis
- Department of Neuroscience, Medical University of South Carolina, Charleston, SC, 29425, USA.
- Hollings Cancer Center, Medical University of South Carolina, Charleston, SC, 29425, USA.
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43
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Kupferschmidt DA, Cummings KA, Joffe ME, MacAskill A, Malik R, Sánchez-Bellot C, Tejeda HA, Yarur Castillo H. Prefrontal Interneurons: Populations, Pathways, and Plasticity Supporting Typical and Disordered Cognition in Rodent Models. J Neurosci 2022; 42:8468-8476. [PMID: 36351822 PMCID: PMC9665918 DOI: 10.1523/jneurosci.1136-22.2022] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2022] [Revised: 08/31/2022] [Accepted: 09/01/2022] [Indexed: 11/17/2022] Open
Abstract
Prefrontal cortex (PFC) inhibitory microcircuits regulate the gain and timing of pyramidal neuron firing, coordinate neural ensemble interactions, and gate local and long-range neural communication to support adaptive cognition and contextually tuned behavior. Accordingly, perturbations of PFC inhibitory microcircuits are thought to underlie dysregulated cognition and behavior in numerous psychiatric diseases and relevant animal models. This review, based on a Mini-Symposium presented at the 2022 Society for Neuroscience Meeting, highlights recent studies providing novel insights into: (1) discrete medial PFC (mPFC) interneuron populations in the mouse brain; (2) mPFC interneuron connections with, and regulation of, long-range mPFC afferents; and (3) circuit-specific plasticity of mPFC interneurons. The contributions of such populations, pathways, and plasticity to rodent cognition are discussed in the context of stress, reward, motivational conflict, and genetic mutations relevant to psychiatric disease.
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Affiliation(s)
- David A Kupferschmidt
- Integrative Neuroscience Section, National Institute of Neurological Disorders and Stroke, Bethesda, Maryland, 20892
| | - Kirstie A Cummings
- Department of Neurobiology, University of Alabama at Birmingham School of Medicine, Birmingham, Alabama, 35233
| | - Max E Joffe
- Translational Neuroscience Program, Department of Psychiatry, University of Pittsburgh, Pittsburgh, Pennsylvania, 15213
| | - Andrew MacAskill
- Department of Neuroscience, Physiology and Pharmacology, University College London, London, United Kingdom, WC1E 6BT
| | - Ruchi Malik
- Department of Psychiatry and Behavioral Sciences, UCSF Weill Institute for Neurosciences, Kavli Institute for Fundamental Neuroscience, University of California San Francisco, San Francisco, California, 94158
| | - Candela Sánchez-Bellot
- Department of Neuroscience, Physiology and Pharmacology, University College London, London, United Kingdom, WC1E 6BT
- Laboratorio de Circuitos Neuronales, Instituto Cajal, Consejo Superior de Investigaciones Científicas, Madrid, Spain, 28002
| | - Hugo A Tejeda
- Unit on Neuromodulation and Synaptic Integration, National Institute of Mental Health, Bethesda, Maryland, 20892
| | - Hector Yarur Castillo
- Unit on Neuromodulation and Synaptic Integration, National Institute of Mental Health, Bethesda, Maryland, 20892
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44
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Parsons W, Greiner E, Buczek L, Migliaccio J, Corbett E, Madden AMK, Petrovich GD. Sex differences in activation of extra-hypothalamic forebrain areas during hedonic eating. Brain Struct Funct 2022; 227:2857-2878. [PMID: 36258044 PMCID: PMC9724631 DOI: 10.1007/s00429-022-02580-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 10/07/2022] [Indexed: 12/01/2022]
Abstract
Palatable foods can stimulate appetite without hunger, and unconstrained overeating underlies obesity and binge eating disorder. Women are more prone to obesity and binge eating than men but the neural causes of individual differences are unknown. In an animal model of hedonic eating, a prior study found that females were more susceptible than males to eat palatable food when sated and that the neuropeptide orexin/hypocretin (ORX) was crucial in both sexes. The current study examined potential extra-hypothalamic forebrain targets of ORX signaling during hedonic eating. We measured Fos induction in the cortical, thalamic, striatal, and amygdalar areas that receive substantial ORX inputs and contain their receptors in hungry and sated male and female rats during palatable (high-sucrose) food consumption. During the test, hungry rats of both sexes ate substantial amounts, and while sated males ate much less than hungry rats, sated females ate as much as hungry rats. The Fos induction analysis identified sex differences in recruitment of specific areas of the medial prefrontal cortex, paraventricular nucleus of the thalamus (PVT), nucleus accumbens (ACB), and central nucleus of the amygdala (CEA), and similar patterns across sexes in the insular cortex. There was a striking activation of the infralimbic cortex in sated males, who consumed the least amount food and unique correlations between the insular cortex, PVT, and CEA, as well as the prelimbic cortex, ACB, and CEA in sated females but not sated males. The study identified key functional circuits that may drive hedonic eating in a sex-specific manner.
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Affiliation(s)
- William Parsons
- Department of Psychology and Neuroscience, Boston College, Chestnut Hill, MA, 02467, USA
| | - Eliza Greiner
- Department of Psychology and Neuroscience, Boston College, Chestnut Hill, MA, 02467, USA
| | - Laura Buczek
- Department of Psychology and Neuroscience, Boston College, Chestnut Hill, MA, 02467, USA
| | - Jennifer Migliaccio
- Department of Psychology and Neuroscience, Boston College, Chestnut Hill, MA, 02467, USA
| | - Erin Corbett
- Department of Psychology and Neuroscience, Boston College, Chestnut Hill, MA, 02467, USA
| | - Amanda M K Madden
- Department of Psychology and Neuroscience, Boston College, Chestnut Hill, MA, 02467, USA
| | - Gorica D Petrovich
- Department of Psychology and Neuroscience, Boston College, Chestnut Hill, MA, 02467, USA.
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45
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Wang X, Xing K, He M, He T, Xiang X, Chen T, Zhang L, Li H. Time-restricted feeding is an intervention against excessive dark-phase sleepiness induced by obesogenic diet. Natl Sci Rev 2022; 10:nwac222. [PMID: 36825118 PMCID: PMC9942665 DOI: 10.1093/nsr/nwac222] [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: 09/20/2022] [Revised: 10/05/2022] [Accepted: 10/05/2022] [Indexed: 11/14/2022] Open
Abstract
High-fat diet (HFD)-induced obesity is a growing epidemic and major health concern. While excessive daytime sleepiness (EDS) is a common symptom of HFD-induced obesity, preliminary findings suggest that reduced wakefulness could be improved with time-restricted feeding (TRF). At present, however, the underlying neural mechanisms remain largely unknown. The paraventricular thalamic nucleus (PVT) plays a role in maintaining wakefulness. We found that chronic HFD impaired the activity of PVT neurons. Notably, inactivation of the PVT was sufficient to reduce and fragment wakefulness during the active phase in lean mice, similar to the sleep-wake alterations observed in obese mice with HFD-induced obesity. On the other hand, enhancing PVT neuronal activity consolidated wakefulness in mice with HFD-induced obesity. We observed that the fragmented wakefulness could be eliminated and reversed by TRF. Furthermore, TRF prevented the HFD-induced disruptions on synaptic transmission in the PVT, in a feeding duration-dependent manner. Collectively, our findings demonstrate that ad libitum access to a HFD results in inactivation of the PVT, which is critical to impaired nocturnal wakefulness and increased sleep, while TRF can prevent and reverse diet-induced PVT dysfunction and excessive sleepiness. We establish a link between TRF and neural activity, through which TRF can potentially serve as a lifestyle intervention against diet/obesity-related EDS.
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Affiliation(s)
- Xu Wang
- Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China,MOE Key Laboratory for Biomedical Photonics, Collaborative Innovation Center for Biomedical Engineering, School of Engineering Sciences, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Keke Xing
- Department of Anatomy, Histology & Embryology, Fourth Military Medical University, Xi’an 710032, China
| | - Mengge He
- Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China,MOE Key Laboratory for Biomedical Photonics, Collaborative Innovation Center for Biomedical Engineering, School of Engineering Sciences, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Ting He
- Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China,MOE Key Laboratory for Biomedical Photonics, Collaborative Innovation Center for Biomedical Engineering, School of Engineering Sciences, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Xinkuan Xiang
- Britton Chance Center for Biomedical Photonics, Wuhan National Laboratory for Optoelectronics, Huazhong University of Science and Technology, Wuhan 430074, China,MOE Key Laboratory for Biomedical Photonics, Collaborative Innovation Center for Biomedical Engineering, School of Engineering Sciences, Huazhong University of Science and Technology, Wuhan 430074, China
| | - Tao Chen
- Department of Anatomy, Histology & Embryology, Fourth Military Medical University, Xi’an 710032, China
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46
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Dong R, Lv P, Han Y, Jiang L, Wang Z, Peng L, Ma Z, Xia T, Zhang B, Gu X. Enhancement of astrocytic gap junctions Connexin43 coupling can improve long-term isoflurane anesthesia-mediated brain network abnormalities and cognitive impairment. CNS Neurosci Ther 2022; 28:2281-2297. [PMID: 36153812 PMCID: PMC9627365 DOI: 10.1111/cns.13974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 08/31/2022] [Accepted: 09/03/2022] [Indexed: 02/06/2023] Open
Abstract
AIM Astrocytes are connected by gap junctions Connexin43 (GJs-Cx43) forming an extensive intercellular network and maintain brain homeostasis. Perioperative neurocognitive disorder (PND) occurs frequently after anesthesia/surgery and worsens patient outcome, but the neural circuit mechanisms remain unclear. This study aimed to determine the effects of the GJs-Cx43-mediated astrocytic network on PND and ascertain the underlying neural circuit mechanism. METHODS Male C57BL/6 mice were treated with long-term isoflurane exposure to construct a mouse model of PND. We also exposed primary mouse astrocytes to long-term isoflurane exposure to simulate the conditions of in vivo cognitive dysfunction. Behavioral tests were performed using the Y-maze and fear conditioning (FC) tests. Manganese-enhanced magnetic resonance imaging (MEMRI) and resting-state functional magnetic resonance imaging (rs-fMRI) were used to investigate brain activity and functional connectivity. Western blot and flow cytometry analysis were used to assess protein expression. RESULTS Reconfiguring the astrocytic network by increasing GJs-Cx43 expression can modulate 22 subregions affected by PND in three ways: reversed activation, reversed inhibition, and intensified activation. The brain functional connectivity analysis further suggests that PND is a brain network disorder that includes sleep-wake rhythm-related brain regions, contextual and fear memory-related subregions, the hippocampal-amygdala circuit, the septo-hippocampal circuit, and the entorhinal-hippocampal circuit. Notably, remodeling the astrocytic network by upregulation of GJs-Cx43 can partially reverse the abnormalities in the above circuits. Pathophysiological degeneration in hippocampus is one of the primary hallmarks of PND pathology, and long-term isoflurane anesthesia contributes to oxidative stress and neuroinflammation in the hippocampus. However, promoting the formation of GJs-Cx43 ameliorated cognitive dysfunction induced by long-term isoflurane anesthesia through the attenuation of oxidative stress in hippocampus. CONCLUSION Enhancing GJs-Cx43 coupling can improve brain network abnormalities and cognitive impairment induced by long-term isoflurane anesthesia, its mechanisms might be associated with the regulation of oxidative stress and neuroinflammation.
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Affiliation(s)
- Rui Dong
- Department of AnesthesiologyThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjingChina
| | - Pin Lv
- Department of RadiologyThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjingChina
| | - Yuqiang Han
- Department of AnesthesiologyThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjingChina
| | - Linhao Jiang
- Department of AnesthesiologyThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjingChina
| | - Zimo Wang
- Department of AnesthesiologyThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjingChina
| | - Liangyu Peng
- Department of AnesthesiologyThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjingChina
| | - Zhengliang Ma
- Department of AnesthesiologyThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjingChina
| | - Tianjiao Xia
- Medical SchoolNanjing UniversityNanjingChina,Jiangsu Key Laboratory of Molecular MedicineNanjingChina
| | - Bing Zhang
- Department of RadiologyThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjingChina,Jiangsu Key Laboratory of Molecular MedicineNanjingChina,Institute of Medical Imaging and Artificial IntelligenceNanjing UniversityNanjingChina,Institute of Brain ScienceNanjing UniversityNanjingChina
| | - Xiaoping Gu
- Department of AnesthesiologyThe Affiliated Drum Tower Hospital of Nanjing University Medical SchoolNanjingChina
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Vertes RP, Linley SB, Rojas AKP. Structural and functional organization of the midline and intralaminar nuclei of the thalamus. Front Behav Neurosci 2022; 16:964644. [PMID: 36082310 PMCID: PMC9445584 DOI: 10.3389/fnbeh.2022.964644] [Citation(s) in RCA: 18] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2022] [Accepted: 07/07/2022] [Indexed: 12/03/2022] Open
Abstract
The midline and intralaminar nuclei of the thalamus form a major part of the "limbic thalamus;" that is, thalamic structures anatomically and functionally linked with the limbic forebrain. The midline nuclei consist of the paraventricular (PV) and paratenial nuclei, dorsally and the rhomboid and nucleus reuniens (RE), ventrally. The rostral intralaminar nuclei (ILt) consist of the central medial (CM), paracentral (PC) and central lateral (CL) nuclei. We presently concentrate on RE, PV, CM and CL nuclei of the thalamus. The nucleus reuniens receives a diverse array of input from limbic-related sites, and predominantly projects to the hippocampus and to "limbic" cortices. The RE participates in various cognitive functions including spatial working memory, executive functions (attention, behavioral flexibility) and affect/fear behavior. The PV receives significant limbic-related afferents, particularly the hypothalamus, and mainly distributes to "affective" structures of the forebrain including the bed nucleus of stria terminalis, nucleus accumbens and the amygdala. Accordingly, PV serves a critical role in "motivated behaviors" such as arousal, feeding/consummatory behavior and drug addiction. The rostral ILt receives both limbic and sensorimotor-related input and distributes widely over limbic and motor regions of the frontal cortex-and throughout the dorsal striatum. The intralaminar thalamus is critical for maintaining consciousness and directly participates in various sensorimotor functions (visuospatial or reaction time tasks) and cognitive tasks involving striatal-cortical interactions. As discussed herein, while each of the midline and intralaminar nuclei are anatomically and functionally distinct, they collectively serve a vital role in several affective, cognitive and executive behaviors - as major components of a brainstem-diencephalic-thalamocortical circuitry.
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Affiliation(s)
- Robert P. Vertes
- Center for Complex Systems and Brain Sciences, Florida Atlantic University, Boca Raton, FL, United States
- Department of Psychology, Florida Atlantic University, Boca Raton, FL, United States
| | - Stephanie B. Linley
- Center for Complex Systems and Brain Sciences, Florida Atlantic University, Boca Raton, FL, United States
- Department of Psychology, Florida Atlantic University, Boca Raton, FL, United States
- Department of Psychological Science, University of North Georgia, Dahlonega, GA, United States
| | - Amanda K. P. Rojas
- Center for Complex Systems and Brain Sciences, Florida Atlantic University, Boca Raton, FL, United States
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Neural activity in afferent projections to the infralimbic cortex is associated with individual differences in the recall of fear extinction. Sci Rep 2022; 12:13703. [PMID: 35953525 PMCID: PMC9372091 DOI: 10.1038/s41598-022-17895-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Accepted: 08/02/2022] [Indexed: 11/08/2022] Open
Abstract
Post-traumatic stress disorder (PTSD) is characterized by an impaired ability to extinguish fear responses to trauma-associated cues. Studies in humans and non-human animals point to differences in the engagement of certain frontal cortical regions as key mediators determining whether or not fear extinction is successful, however the neural circuit interactions that dictate the differential involvement of these regions are not well understood. To better understand how individual differences in extinction recall are reflected in differences in neural circuit activity, we labeled projections to the infralimbic cortex (IL) in rats using a retrograde tracer and compared neural activity within, and outside, of IL-projecting neurons. We analyzed these data in groups separated on the basis of how well rats retained extinction memory. We found that within IL-projecting cells, neurons in the posterior paraventricular thalamus showed heightened activity in rats that showed good extinction recall. Outside of the IL-projecting cells, increased Fos activity was observed in good extinction rats in select regions of the claustrum and ventral hippocampus. Our results indicate that differences in extinction recall are associated with a specific pattern of neural activity both within and outside of projections to the IL.
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Gargiulo AT, Badve PS, Curtis GR, Pirino BE, Barson JR. Inactivation of the thalamic paraventricular nucleus promotes place preference and sucrose seeking in male rats. Psychopharmacology (Berl) 2022; 239:2659-2671. [PMID: 35524009 PMCID: PMC9296579 DOI: 10.1007/s00213-022-06160-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/14/2021] [Accepted: 04/30/2022] [Indexed: 11/30/2022]
Abstract
RATIONALE The experience of reward entails both positive affect and motivation. While the brain regions responsible for these distinct aspects of reward are dissociable from each other, the paraventricular nucleus of the thalamus (PVT) may play a role in both. OBJECTIVES To investigate the role of the PVT in both affect and motivation, and to identify neuropeptides that might mediate these effects. METHODS Male rats were tested for conditioned place preference following temporary inactivation of the anterior or posterior PVT with local injections of the GABAB and GABAA agonists, baclofen + muscimol. They were tested for sucrose seeking under a fixed ratio 3 (FR3) schedule of reinforcement and after extinction, following injection into the posterior PVT of baclofen + muscimol or saline vehicle. Finally, quantitative real-time PCR was used to examine local neuropeptide gene expression following injection into the posterior PVT of baclofen + muscimol or saline vehicle. RESULTS Conditioned place preference was induced by temporary inactivation of the posterior but not anterior PVT. While sucrose seeking under an FR3 schedule of reinforcement was unaffected by inactivation of the posterior PVT, reinstatement of sucrose seeking was promoted by posterior PVT inactivation. Local gene expression of pituitary adenylate cyclase-activating polypeptide (PACAP), but not enkephalin or neurotensin, was reduced following inactivation of the posterior PVT. CONCLUSIONS Temporary inactivation of the posterior PVT affects both affect and motivation as well as local gene expression of PACAP. These results suggest that the posterior PVT is one brain region that may participate in both major aspects of reward.
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Affiliation(s)
- Andrew T. Gargiulo
- Drexel University College of Medicine, Department of Neurobiology and Anatomy, 2900 Queen Lane, Philadelphia, PA 19129, USA
| | - Preeti S. Badve
- Drexel University College of Medicine, Department of Neurobiology and Anatomy, 2900 Queen Lane, Philadelphia, PA 19129, USA
| | - Genevieve R. Curtis
- Drexel University College of Medicine, Department of Neurobiology and Anatomy, 2900 Queen Lane, Philadelphia, PA 19129, USA
| | - Breanne E. Pirino
- Drexel University College of Medicine, Department of Neurobiology and Anatomy, 2900 Queen Lane, Philadelphia, PA 19129, USA
| | - Jessica R. Barson
- Drexel University College of Medicine, Department of Neurobiology and Anatomy, 2900 Queen Lane, Philadelphia, PA 19129, USA
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Diet-induced inflammation in the anterior paraventricular thalamus induces compulsive sucrose-seeking. Nat Neurosci 2022; 25:1009-1013. [PMID: 35915173 DOI: 10.1038/s41593-022-01129-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2021] [Accepted: 06/22/2022] [Indexed: 11/08/2022]
Abstract
Overconsumption of palatable food may initiate neuroadaptive responses in brain reward circuitry that may contribute to eating disorders. Here we report that high-fat diet (HFD) consumption impedes threat-cue-induced suppression of sucrose-seeking in mice. This compulsive sucrose-seeking was due to enhanced cue-triggered neuronal activity in the anterior paraventricular thalamus (aPVT) resulting from HFD-induced microglia activation. Thus, metabolic inflammation in the aPVT produces an adaptive response to threat cues, leading to compulsive food-seeking.
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