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Wunsch AM, Hwang EK, Funke JR, Baker R, Moutier A, Milovanovic M, Green TA, Wolf ME. Retinoic acid-mediated homeostatic plasticity in the nucleus accumbens core contributes to incubation of cocaine craving. Psychopharmacology (Berl) 2024:10.1007/s00213-024-06612-x. [PMID: 38935096 DOI: 10.1007/s00213-024-06612-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/18/2023] [Accepted: 05/10/2024] [Indexed: 06/28/2024]
Abstract
RATIONALE Incubation of cocaine craving refers to the progressive intensification of cue-induced craving during abstinence from cocaine self-administration. We showed previously that homomeric GluA1 Ca2+-permeable AMPARs (CP-AMPAR) accumulate in excitatory synapses of nucleus accumbens core (NAcc) medium spiny neurons (MSN) after ∼1 month of abstinence and thereafter their activation is required for expression of incubation. Therefore, it is important to understand mechanisms underlying CP-AMPAR plasticity. OBJECTIVES We hypothesize that CP-AMPAR upregulation represents a retinoic acid (RA)-dependent form of homeostatic plasticity, previously described in other brain regions, in which a reduction in neuronal activity disinhibits RA synthesis, leading to GluA1 translation and CP-AMPAR synaptic insertion. We tested this using viral vectors to bidirectionally manipulate RA signaling in NAcc during abstinence following extended-access cocaine self-administration. RESULTS We used shRNA targeted to the RA degradative enzyme Cyp26b1 to increase RA signaling. This treatment accelerated incubation; rats expressed incubation on abstinence day (AD) 15, when it is not yet detected in control rats. It also accelerated CP-AMPAR synaptic insertion measured with slice physiology. CP-AMPARs were detected in Cyp26b1 shRNA-expressing MSN, but not control MSN, on AD15-18. Next, we used shRNA targeted to the major RA synthetic enzyme Aldh1a1 to reduce RA signaling. In MSN expressing Aldh1a1 shRNA, synaptic CP-AMPARs were reduced in late withdrawal (AD42-60) compared to controls. However, we did not detect an effect of this manipulation on incubated cocaine seeking (AD40). CONCLUSIONS These findings support the hypothesis that increased RA signaling during abstinence contributes to CP-AMPAR accumulation and incubation of cocaine craving.
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Affiliation(s)
- Amanda M Wunsch
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, 97212, USA
- Department of Neuroscience, Rosalind Franklin University of Medicine and Science, North Chicago, IL, 60064, USA
| | - Eun-Kyung Hwang
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, 97212, USA
| | - Jonathan R Funke
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, 97212, USA
- Department of Neuroscience, Rosalind Franklin University of Medicine and Science, North Chicago, IL, 60064, USA
- Graduate School of Biomedical Sciences, Tufts University, Boston, MA, 02111, USA
| | - Raines Baker
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, 97212, USA
- College of Education, Health, and Human Sciences, Florida State University, Tallahassee, FL, 32306, USA
| | - Alana Moutier
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, 97212, USA
- Yecuris Corporation, Tualatin, OR, 97062, USA
| | - Mike Milovanovic
- Department of Neuroscience, Rosalind Franklin University of Medicine and Science, North Chicago, IL, 60064, USA
| | - Thomas A Green
- Department of Pharmacology & Toxicology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Marina E Wolf
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, OR, 97212, USA.
- Department of Neuroscience, Rosalind Franklin University of Medicine and Science, North Chicago, IL, 60064, USA.
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Martínez-Rivera FJ, Holt LM, Minier-Toribio A, Estill M, Yeh SY, Tofani S, Futamura R, Browne CJ, Mews P, Shen L, Nestler EJ. Transcriptional characterization of cocaine withdrawal versus extinction within nucleus accumbens. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.03.12.584637. [PMID: 38559084 PMCID: PMC10980003 DOI: 10.1101/2024.03.12.584637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/04/2024]
Abstract
Substance use disorder is characterized by a maladaptive imbalance wherein drug seeking persists despite negative consequences or drug unavailability. This imbalance correlates with neurobiological alterations some of which are amplified during forced abstinence, thereby compromising the capacity of extinction-based approaches to prevent relapse. Cocaine use disorder (CUD) exemplifies this phenomenon in which neurobiological modifications hijack brain reward regions such as the nucleus accumbens (NAc) to manifest craving and withdrawal-like symptoms. While increasing evidence links transcriptional changes in the NAc to specific phases of addiction, genome-wide changes in gene expression during withdrawal vs. extinction (WD/Ext) have not been examined in a context- and NAc-subregion-specific manner. Here, we used cocaine self-administration (SA) in rats combined with RNA-sequencing (RNA-seq) of NAc subregions (core and shell) to transcriptionally profile the impact of experiencing withdrawal in the home cage or in the previous drug context or experiencing extinction training. As expected, home-cage withdrawal maintained drug seeking in the previous drug context, whereas extinction training reduced it. By contrast, withdrawal involving repetitive exposure to the previous drug context increased drug-seeking behavior. Bioinformatic analyses of RNA-seq data revealed gene expression patterns, networks, motifs, and biological functions specific to these behavioral conditions and NAc subregions. Comparing transcriptomic analysis of the NAc of patients with CUD highlighted conserved gene signatures, especially with rats that were repetitively exposed to the previous drug context. Collectively, these behavioral and transcriptional correlates of several withdrawal-extinction settings reveal fundamental and translational information about potential molecular mechanisms to attenuate drug-associated memories.
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3
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Mármol Contreras Y, Vasquez TES, Shah P, Payne K, Di Re J, Laezza F, Green TA. Bar press durations as a reliable and robust measure of frustration-related operant behavior: Sensitivity to incentive downshift and dose-response paradigms. PLoS One 2023; 18:e0296090. [PMID: 38127939 PMCID: PMC10734988 DOI: 10.1371/journal.pone.0296090] [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: 09/25/2023] [Accepted: 12/05/2023] [Indexed: 12/23/2023] Open
Abstract
In humans, frustrating experiences are known to trigger relapse events and individuals with higher frustration intolerance show increased risk of developing substance use disorders (SUDs). Despite this clear relationship, frustration-related behavior is seldom studied concurrently with self-administration behavior in rodent models. A major obstacle has been the lack of robust, quantitative assays of frustration-related operant behavior thus far. In previous work, we identified increased bar press (BP) durations in response to frustrating conditions in rats self-administering natural or drug rewards. Here, to propose BP durations as a measure of frustration-related behavior, we conducted an operant successive negative contrast (oSNC) study and found that increases in BP durations are observed in the absence of increased effort, providing evidence that this is a psychological phenomenon. Moreover, we assess the viability of widespread use of BP duration measurements as a behavioral tool by quantifying performance as it pertains to sensitivity, robustness, replicability, and sex differences. We conclude that increases in BP durations are a highly sensitive psychological response to frustrating conditions and that this measure is robust, replicable, and applicable to both sexes.
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Affiliation(s)
- Yorkiris Mármol Contreras
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, Texas, United States of America
- Center for Addiction Sciences and Therapeutics, The University of Texas Medical Branch, Galveston, Texas, United States of America
- Mental Health Research Group, The University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Tileena E. S. Vasquez
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, Texas, United States of America
- Center for Addiction Sciences and Therapeutics, The University of Texas Medical Branch, Galveston, Texas, United States of America
- Mental Health Research Group, The University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Poonam Shah
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, Texas, United States of America
- Center for Addiction Sciences and Therapeutics, The University of Texas Medical Branch, Galveston, Texas, United States of America
- Mental Health Research Group, The University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Kelsey Payne
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, Texas, United States of America
- Center for Addiction Sciences and Therapeutics, The University of Texas Medical Branch, Galveston, Texas, United States of America
- Mental Health Research Group, The University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Jessica Di Re
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, Texas, United States of America
- Center for Addiction Sciences and Therapeutics, The University of Texas Medical Branch, Galveston, Texas, United States of America
- Mental Health Research Group, The University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Fernanda Laezza
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, Texas, United States of America
- Center for Addiction Sciences and Therapeutics, The University of Texas Medical Branch, Galveston, Texas, United States of America
- Mental Health Research Group, The University of Texas Medical Branch, Galveston, Texas, United States of America
| | - Thomas A. Green
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, Texas, United States of America
- Center for Addiction Sciences and Therapeutics, The University of Texas Medical Branch, Galveston, Texas, United States of America
- Mental Health Research Group, The University of Texas Medical Branch, Galveston, Texas, United States of America
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4
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Dvorak NM, Domingo ND, Tapia CM, Wadsworth PA, Marosi M, Avchalumov Y, Fongsaran C, Koff L, Di Re J, Sampson CM, Baumgartner TJ, Wang P, Villarreal PP, Solomon OD, Stutz SJ, Aditi, Porter J, Gbedande K, Prideaux B, Green TA, Seeley EH, Samir P, Dineley KT, Vargas G, Zhou J, Cisneros I, Stephens R, Laezza F. TNFR1 signaling converging on FGF14 controls neuronal hyperactivity and sickness behavior in experimental cerebral malaria. J Neuroinflammation 2023; 20:306. [PMID: 38115011 PMCID: PMC10729485 DOI: 10.1186/s12974-023-02992-7] [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: 08/25/2023] [Accepted: 12/11/2023] [Indexed: 12/21/2023] Open
Abstract
BACKGROUND Excess tumor necrosis factor (TNF) is implicated in the pathogenesis of hyperinflammatory experimental cerebral malaria (eCM), including gliosis, increased levels of fibrin(ogen) in the brain, behavioral changes, and mortality. However, the role of TNF in eCM within the brain parenchyma, particularly directly on neurons, remains underdefined. Here, we investigate electrophysiological consequences of eCM on neuronal excitability and cell signaling mechanisms that contribute to observed phenotypes. METHODS The split-luciferase complementation assay (LCA) was used to investigate cell signaling mechanisms downstream of tumor necrosis factor receptor 1 (TNFR1) that could contribute to changes in neuronal excitability in eCM. Whole-cell patch-clamp electrophysiology was performed in brain slices from eCM mice to elucidate consequences of infection on CA1 pyramidal neuron excitability and cell signaling mechanisms that contribute to observed phenotypes. Involvement of identified signaling molecules in mediating behavioral changes and sickness behavior observed in eCM were investigated in vivo using genetic silencing. RESULTS Exploring signaling mechanisms that underlie TNF-induced effects on neuronal excitability, we found that the complex assembly of fibroblast growth factor 14 (FGF14) and the voltage-gated Na+ (Nav) channel 1.6 (Nav1.6) is increased upon tumor necrosis factor receptor 1 (TNFR1) stimulation via Janus Kinase 2 (JAK2). On account of the dependency of hyperinflammatory experimental cerebral malaria (eCM) on TNF, we performed patch-clamp studies in slices from eCM mice and showed that Plasmodium chabaudi infection augments Nav1.6 channel conductance of CA1 pyramidal neurons through the TNFR1-JAK2-FGF14-Nav1.6 signaling network, which leads to hyperexcitability. Hyperexcitability of CA1 pyramidal neurons caused by infection was mitigated via an anti-TNF antibody and genetic silencing of FGF14 in CA1. Furthermore, knockdown of FGF14 in CA1 reduced sickness behavior caused by infection. CONCLUSIONS FGF14 may represent a therapeutic target for mitigating consequences of TNF-mediated neuroinflammation.
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Affiliation(s)
- Nolan M Dvorak
- Department of Pharmacology & Toxicology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Nadia D Domingo
- Department of Internal Medicine, Division of Infectious Diseases, University of Texas Medical Branch, Galveston, TX, 77555, USA
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Cynthia M Tapia
- Department of Pharmacology & Toxicology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Paul A Wadsworth
- Department of Pharmacology & Toxicology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Mate Marosi
- Department of Pharmacology & Toxicology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Yosef Avchalumov
- Department of Pharmacology & Toxicology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Chanida Fongsaran
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Leandra Koff
- Department of Pharmacology & Toxicology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Jessica Di Re
- Department of Pharmacology & Toxicology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Catherine M Sampson
- Department of Pharmacology & Toxicology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Timothy J Baumgartner
- Department of Pharmacology & Toxicology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Pingyuan Wang
- Department of Pharmacology & Toxicology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Paula P Villarreal
- Department of Neurobiology, University of Texas Medical Branch, Galveston, TX, 77555, USA
- Clinical Sciences Program, The Institute for Translational Sciences, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Olivia D Solomon
- Department of Neurobiology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Sonja J Stutz
- Center for Addiction Sciences and Therapeutics, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Aditi
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Jacob Porter
- Department of Chemistry, University of Texas, Austin, TX, 78712, USA
| | - Komi Gbedande
- Department of Internal Medicine, Division of Infectious Diseases, University of Texas Medical Branch, Galveston, TX, 77555, USA
- Center for Immunity and Inflammation and Department of Pharmacology, Physiology and Neuroscience, Rutgers New Jersey Medical School, Newark, NJ, 07301, USA
| | - Brendan Prideaux
- Department of Neurobiology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Thomas A Green
- Department of Pharmacology & Toxicology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Erin H Seeley
- Department of Chemistry, University of Texas, Austin, TX, 78712, USA
| | - Parimal Samir
- Department of Microbiology & Immunology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Kelley T Dineley
- Center for Addiction Sciences and Therapeutics, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Gracie Vargas
- Department of Neurobiology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Jia Zhou
- Department of Pharmacology & Toxicology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Irma Cisneros
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Robin Stephens
- Department of Internal Medicine, Division of Infectious Diseases, University of Texas Medical Branch, Galveston, TX, 77555, USA.
- Department of Pathology, University of Texas Medical Branch, Galveston, TX, 77555, USA.
- Center for Immunity and Inflammation and Department of Pharmacology, Physiology and Neuroscience, Rutgers New Jersey Medical School, Newark, NJ, 07301, USA.
| | - Fernanda Laezza
- Department of Pharmacology & Toxicology, University of Texas Medical Branch, Galveston, TX, 77555, USA.
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5
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Dvorak NM, Di Re J, Vasquez TES, Marosi M, Shah P, Contreras YMM, Bernabucci M, Singh AK, Stallone J, Green TA, Laezza F. Fibroblast growth factor 13-mediated regulation of medium spiny neuron excitability and cocaine self-administration. Front Neurosci 2023; 17:1294567. [PMID: 38099204 PMCID: PMC10720079 DOI: 10.3389/fnins.2023.1294567] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Accepted: 10/31/2023] [Indexed: 12/17/2023] Open
Abstract
Cocaine use disorder (CUD) is a prevalent neuropsychiatric disorder with few existing treatments. Thus, there is an unmet need for the identification of new pharmacological targets for CUD. Previous studies using environmental enrichment versus isolation paradigms have found that the latter induces increased cocaine self-administration with correlative increases in the excitability of medium spiny neurons (MSN) of the nucleus accumbens shell (NAcSh). Expanding upon these findings, we sought in the present investigation to elucidate molecular determinants of these phenomena. To that end, we first employed a secondary transcriptomic analysis and found that cocaine self-administration differentially regulates mRNA for fibroblast growth factor 13 (FGF13), which codes for a prominent auxiliary protein of the voltage-gated Na+ (Nav) channel, in the NAcSh of environmentally enriched rats (i.e., resilient behavioral phenotype) compared to environmentally isolated rats (susceptible phenotype). Based upon this finding, we used in vivo genetic silencing to study the causal functional and behavioral consequences of knocking down FGF13 in the NAcSh. Functional studies revealed that knockdown of FGF13 in the NAcSh augmented excitability of MSNs by increasing the activity of Nav channels. These electrophysiological changes were concomitant with a decrease in cocaine demand elasticity (i.e., susceptible phenotype). Taken together, these data support FGF13 as being protective against cocaine self-administration, which positions it well as a pharmacological target for CUD.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - Thomas A. Green
- Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX, United States
| | - Fernanda Laezza
- Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX, United States
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6
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Towers EB, Shapiro DA, Abel JM, Bakhti-Suroosh A, Kupkova K, Auble DT, Grant PA, Lynch WJ. Transcriptional Profile of Exercise-Induced Protection Against Relapse to Cocaine Seeking in a Rat Model. BIOLOGICAL PSYCHIATRY GLOBAL OPEN SCIENCE 2023; 3:734-745. [PMID: 37881559 PMCID: PMC10593899 DOI: 10.1016/j.bpsgos.2023.01.007] [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: 12/07/2022] [Revised: 01/23/2023] [Accepted: 01/25/2023] [Indexed: 02/05/2023] Open
Abstract
Background Exercise has shown promise as a treatment for cocaine use disorder; however, the mechanism underlying its efficacy has remained elusive. Methods We used a rat model of relapse (cue-induced reinstatement) and exercise (wheel running, 2 hours/day) coupled with RNA sequencing to establish transcriptional profiles associated with the protective effects of exercise (during early withdrawal [days 1-7] or throughout withdrawal [days 1-14]) versus noneffective exercise (during late withdrawal [days 8-14]) against cocaine-seeking and sedentary conditions. Results As expected, cue-induced cocaine seeking was highest in the sedentary and late-withdrawal exercise groups; both groups also showed upregulation of a Grin1-associated transcript and enrichment of Drd1-Nmdar1 complex and glutamate receptor complex terms. Surprisingly, these glutamate markers were also enriched in the early- and throughout-withdrawal exercise groups, despite lower levels of cocaine seeking. However, a closer examination of the Grin1-associated transcript revealed a robust loss of transcripts spanning exons 9 and 10 in the sedentary condition relative to saline controls that was normalized by early- and throughout-withdrawal exercise, but not late-withdrawal exercise, indicating that these exercise conditions may normalize RNA mis-splicing induced by cocaine seeking. Our findings also revealed novel mechanisms by which exercise initiated during early withdrawal may modulate glutamatergic signaling in dorsomedial prefrontal cortex (e.g., via transcripts associated with non-NMDA glutamate receptors or those affecting signaling downstream of NMDA receptors), along with mechanisms outside of glutamatergic signaling such as circadian rhythm regulation and neuronal survival. Conclusions These findings provide a rich resource for future studies aimed at manipulating these molecular networks to better understand how exercise decreases cocaine seeking.
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Affiliation(s)
- Eleanor Blair Towers
- Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, Virginia
- Medical Scientist Training Program, University of Virginia, Charlottesville, Virginia
| | - Daniel A. Shapiro
- Center for Brain Immunology and Glia, Department of Neuroscience, University of Virginia, Charlottesville, Virginia
| | - Jean M. Abel
- Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, Virginia
| | - Anousheh Bakhti-Suroosh
- Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, Virginia
| | - Kristyna Kupkova
- Department of Biochemistry and Molecular Genetics, University of Virginia, Charlottesville, Virginia
| | - David T. Auble
- Department of Biochemistry and Molecular Genetics, University of Virginia, Charlottesville, Virginia
| | - Patrick A. Grant
- Department of Biomedical Science, Florida Atlantic University, Boca Raton, Florida
| | - Wendy J. Lynch
- Department of Psychiatry and Neurobehavioral Sciences, University of Virginia, Charlottesville, Virginia
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7
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Godino A, Salery M, Durand-de Cuttoli R, Estill MS, Holt LM, Futamura R, Browne CJ, Mews P, Hamilton PJ, Neve RL, Shen L, Russo SJ, Nestler EJ. Transcriptional control of nucleus accumbens neuronal excitability by retinoid X receptor alpha tunes sensitivity to drug rewards. Neuron 2023; 111:1453-1467.e7. [PMID: 36889314 PMCID: PMC10164098 DOI: 10.1016/j.neuron.2023.02.013] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Revised: 12/06/2022] [Accepted: 02/07/2023] [Indexed: 03/09/2023]
Abstract
The complex nature of the transcriptional networks underlying addictive behaviors suggests intricate cooperation between diverse gene regulation mechanisms that go beyond canonical activity-dependent pathways. Here, we implicate in this process a nuclear receptor transcription factor, retinoid X receptor alpha (RXRα), which we initially identified bioinformatically as associated with addiction-like behaviors. In the nucleus accumbens (NAc) of male and female mice, we show that although its own expression remains unaltered after cocaine exposure, RXRα controls plasticity- and addiction-relevant transcriptional programs in both dopamine receptor D1- and D2-expressing medium spiny neurons, which in turn modulate intrinsic excitability and synaptic activity of these NAc cell types. Behaviorally, bidirectional viral and pharmacological manipulation of RXRα regulates drug reward sensitivity in both non-operant and operant paradigms. Together, this study demonstrates a key role for NAc RXRα in promoting drug addiction and paves the way for future studies of rexinoid signaling in psychiatric disease states.
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Affiliation(s)
- Arthur Godino
- Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Marine Salery
- Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Romain Durand-de Cuttoli
- Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Molly S Estill
- Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Leanne M Holt
- Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Rita Futamura
- Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Caleb J Browne
- Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Philipp Mews
- Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Peter J Hamilton
- Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Rachael L Neve
- Gene Delivery Technology Core, Massachusetts General Hospital, Boston, MA 02114, USA
| | - Li Shen
- Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Scott J Russo
- Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Eric J Nestler
- Nash Family Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA.
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8
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Interaction between maternal immune activation and peripubertal stress in rats: impact on cocaine addiction-like behaviour, morphofunctional brain parameters and striatal transcriptome. Transl Psychiatry 2023; 13:84. [PMID: 36890154 PMCID: PMC9995324 DOI: 10.1038/s41398-023-02378-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Revised: 02/09/2023] [Accepted: 02/22/2023] [Indexed: 03/10/2023] Open
Abstract
Substance use disorders are more prevalent in schizophrenia, but the causal links between both conditions remain unclear. Maternal immune activation (MIA) is associated with schizophrenia which may be triggered by stressful experiences during adolescence. Therefore, we used a double-hit rat model, combining MIA and peripubertal stress (PUS), to study cocaine addiction and the underlying neurobehavioural alterations. We injected lipopolysaccharide or saline on gestational days 15 and 16 to Sprague-Dawley dams. Their male offspring underwent five episodes of unpredictable stress every other day from postnatal day 28 to 38. When animals reached adulthood, we studied cocaine addiction-like behaviour, impulsivity, Pavlovian and instrumental conditioning, and several aspects of brain structure and function by MRI, PET and RNAseq. MIA facilitated the acquisition of cocaine self-administration and increased the motivation for the drug; however, PUS reduced cocaine intake, an effect that was reversed in MIA + PUS rats. We found concomitant brain alterations: MIA + PUS altered the structure and function of the dorsal striatum, increasing its volume and interfering with glutamatergic dynamics (PUS decreased the levels of NAA + NAAG but only in LPS animals) and modulated specific genes that could account for the restoration of cocaine intake such as the pentraxin family. On its own, PUS reduced hippocampal volume and hyperactivated the dorsal subiculum, also having a profound effect on the dorsal striatal transcriptome. However, these effects were obliterated when PUS occurred in animals with MIA experience. Our results describe an unprecedented interplay between MIA and stress on neurodevelopment and the susceptibility to cocaine addiction.
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9
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Malone SG, Shaykin JD, Stairs DJ, Bardo MT. Neurobehavioral effects of environmental enrichment and drug abuse vulnerability: An updated review. Pharmacol Biochem Behav 2022; 221:173471. [PMID: 36228739 DOI: 10.1016/j.pbb.2022.173471] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 09/16/2022] [Accepted: 10/05/2022] [Indexed: 12/14/2022]
Abstract
Environmental enrichment consisting of social peers and novel objects is known to alter neurobiological functioning and have an influence on the behavioral effects of drugs of abuse in preclinical rodent models. An earlier review from our laboratory (Stairs and Bardo, 2009) provided an overview of enrichment-specific changes in addiction-like behaviors and neurobiology. The current review updates the literature in this extensive field. Key findings from this updated review indicate that enrichment produces positive outcomes in drug abuse vulnerability beyond just psychostimulants. Additionally, recent studies indicate that enrichment activates key genes involved in cell proliferation and protein synthesis in nucleus accumbens and enhances growth factors in hippocampus and neurotransmitter signaling pathways in prefrontal cortex, amygdala, and hypothalamus. Remaining gaps in the literature and future directions for environmental enrichment and drug abuse research are identified.
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Affiliation(s)
- Samantha G Malone
- Department of Psychology, University of Kentucky, BBSRB, 741 S. Limestone, Lexington, KY, USA
| | - Jakob D Shaykin
- Department of Psychology, University of Kentucky, BBSRB, 741 S. Limestone, Lexington, KY, USA
| | - Dustin J Stairs
- Department of Psychological Science, Creighton University, Hixson-Lied Science Building, 2500 California Plaza, Omaha, NE, USA
| | - Michael T Bardo
- Department of Psychology, University of Kentucky, BBSRB, 741 S. Limestone, Lexington, KY, USA.
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10
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Gunturkun MH, Flashner E, Wang T, Mulligan MK, Williams RW, Prins P, Chen H. GeneCup: mining PubMed and GWAS catalog for gene-keyword relationships. G3 (BETHESDA, MD.) 2022; 12:jkac059. [PMID: 35285473 PMCID: PMC9073678 DOI: 10.1093/g3journal/jkac059] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Accepted: 03/04/2022] [Indexed: 11/13/2022]
Abstract
Interpreting and integrating results from omics studies typically requires a comprehensive and time consuming survey of extant literature. GeneCup is a literature mining web service that retrieves sentences containing user-provided gene symbols and keywords from PubMed abstracts. The keywords are organized into an ontology and can be extended to include results from human genome-wide association studies. We provide a drug addiction keyword ontology that contains over 300 keywords as an example. The literature search is conducted by querying the PubMed server using a programming interface, which is followed by retrieving abstracts from a local copy of the PubMed archive. The main results presented to the user are sentences where gene symbol and keywords co-occur. These sentences are presented through an interactive graphical interface or as tables. All results are linked to the original abstract in PubMed. In addition, a convolutional neural network is employed to distinguish sentences describing systemic stress from those describing cellular stress. The automated and comprehensive search strategy provided by GeneCup facilitates the integration of new discoveries from omic studies with existing literature. GeneCup is free and open source software. The source code of GeneCup and the link to a running instance is available at https://github.com/hakangunturkun/GeneCup.
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Affiliation(s)
- Mustafa H Gunturkun
- Department of Pharmacology, Addiction Science and Toxicology, University of Tennessee Health Science, Memphis, TN 38103, USA
| | - Efraim Flashner
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science, Memphis, TN 38103, USA
| | - Tengfei Wang
- Department of Pharmacology, Addiction Science and Toxicology, University of Tennessee Health Science, Memphis, TN 38103, USA
| | - Megan K Mulligan
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science, Memphis, TN 38103, USA
| | - Robert W Williams
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science, Memphis, TN 38103, USA
| | - Pjotr Prins
- Department of Genetics, Genomics and Informatics, University of Tennessee Health Science, Memphis, TN 38103, USA
| | - Hao Chen
- Department of Pharmacology, Addiction Science and Toxicology, University of Tennessee Health Science, Memphis, TN 38103, USA
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11
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Thapliyal S, Arendt KL, Lau AG, Chen L. Retinoic acid-gated BDNF synthesis in neuronal dendrites drives presynaptic homeostatic plasticity. eLife 2022; 11:79863. [PMID: 36515276 PMCID: PMC9797192 DOI: 10.7554/elife.79863] [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: 04/29/2022] [Accepted: 11/23/2022] [Indexed: 12/15/2022] Open
Abstract
Homeostatic synaptic plasticity is a non-Hebbian synaptic mechanism that adjusts synaptic strength to maintain network stability while achieving optimal information processing. Among the molecular mediators shown to regulate this form of plasticity, synaptic signaling through retinoic acid (RA) and its receptor, RARα, has been shown to be critically involved in the homeostatic adjustment of synaptic transmission in both hippocampus and sensory cortices. In this study, we explore the molecular mechanism through which postsynaptic RA and RARα regulates presynaptic neurotransmitter release during prolonged synaptic inactivity at mouse glutamatertic synapses. We show that RARα binds to a subset of dendritically sorted brain-derived neurotrophic factor (Bdnf) mRNA splice isoforms and represses their translation. The RA-mediated translational de-repression of postsynaptic BDNF results in the retrograde activation of presynaptic tropomyosin receptor kinase B (TrkB) receptors, facilitating presynaptic homeostatic compensation through enhanced presynaptic release. Together, our study illustrates an RA-mediated retrograde synaptic signaling pathway through which postsynaptic protein synthesis during synaptic inactivity drives compensatory changes at the presynaptic site.
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Affiliation(s)
- Shruti Thapliyal
- Departments of Neurosurgery, Neuropsychiatry and Behavioral Sciences, Stanford University School of MedicineStanfordUnited States
| | - Kristin L Arendt
- Departments of Neurosurgery, Neuropsychiatry and Behavioral Sciences, Stanford University School of MedicineStanfordUnited States
| | - Anthony G Lau
- Departments of Neurosurgery, Neuropsychiatry and Behavioral Sciences, Stanford University School of MedicineStanfordUnited States
| | - Lu Chen
- Departments of Neurosurgery, Neuropsychiatry and Behavioral Sciences, Stanford University School of MedicineStanfordUnited States
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12
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Reduction of DNMT3a and RORA in the nucleus accumbens plays a causal role in post-traumatic stress disorder-like behavior: reversal by combinatorial epigenetic therapy. Mol Psychiatry 2021; 26:7481-7497. [PMID: 34253866 DOI: 10.1038/s41380-021-01178-y] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/21/2017] [Revised: 04/28/2021] [Accepted: 05/19/2021] [Indexed: 02/06/2023]
Abstract
Post-traumatic stress disorder (PTSD) is an incapacitating trauma-related disorder, with no reliable therapy. Although PTSD has been associated with epigenetic alterations in peripheral white blood cells, it is unknown where such changes occur in the brain, and whether they play a causal role in PTSD. Using an animal PTSD model, we show distinct DNA methylation profiles of PTSD susceptibility in the nucleus accumbens (NAc). Data analysis revealed overall hypomethylation of different genomic CG sites in susceptible animals. This was correlated with the reduction in expression levels of the DNA methyltransferase, DNMT3a. Since epigenetic changes in diseases involve different gene pathways, rather than single candidate genes, we next searched for pathways that may be involved in PTSD. Analysis of differentially methylated sites identified enrichment in the RAR activation and LXR/RXR activation pathways that regulate Retinoic Acid Receptor (RAR) Related Orphan Receptor A (RORA) activation. Intra-NAc injection of a lentiviral vector expressing either RORA or DNMT3a reversed PTSD-like behaviors while knockdown of RORA and DNMT3a increased PTSD-like behaviors. To translate our results into a potential pharmacological therapeutic strategy, we tested the effect of systemic treatment with the global methyl donor S-adenosyl methionine (SAM), for supplementing DNA methylation, or retinoic acid, for activating RORA downstream pathways. We found that combined treatment with the methyl donor SAM and retinoic acid reversed PTSD-like behaviors. Thus, our data point to a novel approach to the treatment of PTSD, which is potentially translatable to humans.
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13
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Individual Differences in Frustrative Nonreward Behavior for Sucrose in Rats Predict Motivation for Fentanyl under Progressive Ratio. eNeuro 2021; 8:ENEURO.0136-21.2021. [PMID: 34607807 PMCID: PMC8555888 DOI: 10.1523/eneuro.0136-21.2021] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 09/09/2021] [Accepted: 09/12/2021] [Indexed: 11/21/2022] Open
Abstract
Frustrative nonreward (FN) is a construct in the Negative Valence Systems domain of the Research Domain Criteria (RDoC) from the National Institute of Mental Health. An organism’s response to frustrating situations (e.g., inability to obtain an expected reward) has broad implications for a variety of neuropsychiatric conditions, including substance use disorders. The current project developed a first of its kind rat operant behavioral model of FN based loosely on the human Point Subtraction Aggression Paradigm (PSAP). The current study shows that individual differences in FN for sucrose pellets are consistent across sessions at baseline and that the task is sensitive to reward size in male rats. More importantly, high FN behavior for sucrose predicts early “breaking” for intravenous fentanyl self-administration under a progressive ratio (PR) schedule. These results solidify frustration/ FN as an important factor for substance use disorders in addition to craving, impulsivity, and habit.
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14
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Zocher S, Overall RW, Lesche M, Dahl A, Kempermann G. Environmental enrichment preserves a young DNA methylation landscape in the aged mouse hippocampus. Nat Commun 2021; 12:3892. [PMID: 34162876 PMCID: PMC8222384 DOI: 10.1038/s41467-021-23993-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2019] [Accepted: 05/20/2021] [Indexed: 02/05/2023] Open
Abstract
The decline of brain function during aging is associated with epigenetic changes, including DNA methylation. Lifestyle interventions can improve brain function during aging, but their influence on age-related epigenetic changes is unknown. Using genome-wide DNA methylation sequencing, we here show that experiencing a stimulus-rich environment counteracts age-related DNA methylation changes in the hippocampal dentate gyrus of mice. Specifically, environmental enrichment prevented the aging-induced CpG hypomethylation at target sites of the methyl-CpG-binding protein Mecp2, which is critical to neuronal function. The genes at which environmental enrichment counteracted aging effects have described roles in neuronal plasticity, neuronal cell communication and adult hippocampal neurogenesis and are dysregulated with age-related cognitive decline in the human brain. Our results highlight the stimulating effects of environmental enrichment on hippocampal plasticity at the level of DNA methylation and give molecular insights into the specific aspects of brain aging that can be counteracted by lifestyle interventions.
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Affiliation(s)
- Sara Zocher
- German Center for Neurodegenerative Diseases (DZNE) Dresden, Dresden, Germany
- Center for Regenerative Therapies Dresden (CRTD), Technische Universität Dresden, Dresden, Germany
| | - Rupert W Overall
- German Center for Neurodegenerative Diseases (DZNE) Dresden, Dresden, Germany
- Center for Regenerative Therapies Dresden (CRTD), Technische Universität Dresden, Dresden, Germany
| | - Mathias Lesche
- Center for Regenerative Therapies Dresden (CRTD), Technische Universität Dresden, Dresden, Germany
- DRESDEN-concept Genome Center c/o Center for Molecular and Cellular Bioengineering (CMCB), Technische Universität Dresden, Dresden, Germany
| | - Andreas Dahl
- Center for Regenerative Therapies Dresden (CRTD), Technische Universität Dresden, Dresden, Germany
- DRESDEN-concept Genome Center c/o Center for Molecular and Cellular Bioengineering (CMCB), Technische Universität Dresden, Dresden, Germany
| | - Gerd Kempermann
- German Center for Neurodegenerative Diseases (DZNE) Dresden, Dresden, Germany.
- Center for Regenerative Therapies Dresden (CRTD), Technische Universität Dresden, Dresden, Germany.
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15
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Espeso-Gil S, Holik AZ, Bonnin S, Jhanwar S, Chandrasekaran S, Pique-Regi R, Albaigès-Ràfols J, Maher M, Permanyer J, Irimia M, Friedländer MR, Pons-Espinal M, Akbarian S, Dierssen M, Maass PG, Hor CN, Ossowski S. Environmental Enrichment Induces Epigenomic and Genome Organization Changes Relevant for Cognition. Front Mol Neurosci 2021; 14:664912. [PMID: 34025350 PMCID: PMC8131874 DOI: 10.3389/fnmol.2021.664912] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2021] [Accepted: 04/09/2021] [Indexed: 01/11/2023] Open
Abstract
In early development, the environment triggers mnemonic epigenomic programs resulting in memory and learning experiences to confer cognitive phenotypes into adulthood. To uncover how environmental stimulation impacts the epigenome and genome organization, we used the paradigm of environmental enrichment (EE) in young mice constantly receiving novel stimulation. We profiled epigenome and chromatin architecture in whole cortex and sorted neurons by deep-sequencing techniques. Specifically, we studied chromatin accessibility, gene and protein regulation, and 3D genome conformation, combined with predicted enhancer and chromatin interactions. We identified increased chromatin accessibility, transcription factor binding including CTCF-mediated insulation, differential occupancy of H3K36me3 and H3K79me2, and changes in transcriptional programs required for neuronal development. EE stimuli led to local genome re-organization by inducing increased contacts between chromosomes 7 and 17 (inter-chromosomal). Our findings support the notion that EE-induced learning and memory processes are directly associated with the epigenome and genome organization.
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Affiliation(s)
- Sergio Espeso-Gil
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- Genetics and Genome Biology Program, SickKids Research Institute, Toronto, ON, Canada
| | - Aliaksei Z. Holik
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Sarah Bonnin
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Shalu Jhanwar
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Sandhya Chandrasekaran
- MD/PhD Program in the Graduate School of Biomedical Sciences, Icahn School of Medicine at Mount Sinai, New York, NY, United States
- Department of Psychiatry and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Roger Pique-Regi
- Center for Molecular Medicine and Genetics, Wayne State University, Detroit, MI, United States
| | - Júlia Albaigès-Ràfols
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Michael Maher
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Jon Permanyer
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
| | - Manuel Irimia
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
- ICREA, Pg. Lluis Companys 23, Barcelona, Spain
| | - Marc R. Friedländer
- Science for Life Laboratory, Department of Molecular Biosciences, The Wenner-Gren Institute, Stockholm University, Stockholm, Sweden
| | - Meritxell Pons-Espinal
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Schahram Akbarian
- Department of Psychiatry and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Mara Dierssen
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Philipp G. Maass
- Genetics and Genome Biology Program, SickKids Research Institute, Toronto, ON, Canada
- Department of Molecular Genetics, University of Toronto, Toronto, ON, Canada
| | - Charlotte N. Hor
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
| | - Stephan Ossowski
- Centre for Genomic Regulation (CRG), The Barcelona Institute of Science and Technology, Barcelona, Spain
- Universitat Pompeu Fabra (UPF), Barcelona, Spain
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16
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Yazdanfar N, Farnam A, Sadigh-Eteghad S, Mahmoudi J, Sarkaki A. Enriched environment and social isolation differentially modulate addiction-related behaviors in male offspring of morphine-addicted dams: The possible role of μ-opioid receptors and ΔFosB in the brain reward pathway. Brain Res Bull 2021; 170:98-105. [PMID: 33592274 DOI: 10.1016/j.brainresbull.2021.02.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 01/19/2021] [Accepted: 02/02/2021] [Indexed: 12/20/2022]
Abstract
Prenatal opioids exposure negatively affects the neurobehavioral abilities of children born from dependence dams. Adolescent housing conditions can buffer the detrimental impacts of early life experiences or contradictory can worsen individual psychosocial functions. The present study investigated the effects of maternal morphine dependence and different rearing conditions on behaviors and protein expression in brain reward circuits of male pups. Female Wistar rats a week before conception, during pregnancy and lactation were injected twice daily with escalating doses of morphine or saline. On a postnatal day 21, male pups were weaned and subjected to three different environments for two months: standard (STD), isolated (ISO), or enriched environment (EE). The anxiety and drug-related reward were measured using elevated plus maze, open field test, and conditioned place preference. Western blotting was used to determine the protein level of ΔFosB and μ-opioid receptor proteins in the striatum and the midbrain of male offspring, respectively. Results showed that maternal morphine administration dramatically increased anxiety-like and morphine place preference behaviors in offspring. Also, ISO condition aggravated these behavioral outcomes. While, rearing in EE could attenuate anxiety and morphine conditioning in pups. At molecular levels, maternal morphine exposure and social isolation markedly increased both of ΔFosB and μ-opioid receptor proteins expression. However, rearing in the EE declined ΔFosB protein expression. Together, these findings help to elucidate long lasting impacts of early life morphine exposure and rearing environment on the behavioral and molecular profile of addicted individuals.
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Affiliation(s)
- Neda Yazdanfar
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Neuroscience, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alireza Farnam
- Research Center of Psychiatry and Behavioral Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeed Sadigh-Eteghad
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Javad Mahmoudi
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Alireza Sarkaki
- The Persian Gulf Physiology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Department of Physiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
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17
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Vasquez TES, McAuley RJ, Gupta NS, Koshy S, Marmol-Contreras Y, Green TA. Lever-press duration as a measure of frustration in sucrose and drug reinforcement. Psychopharmacology (Berl) 2021; 238:959-968. [PMID: 33420805 PMCID: PMC8238410 DOI: 10.1007/s00213-020-05742-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Accepted: 12/01/2020] [Indexed: 01/13/2023]
Abstract
RATIONALE Currently there is little research into the role of frustration in substance use disorders despite research showing that frustration tolerance in humans is associated with a lower likelihood of developing substance use problems, better outcomes in recovery, and fewer relapses. OBJECTIVE In order to address this need, our studies use a rat model to focus on frustration-related behavior in natural reward and addiction-related behavioral procedures. Frustration is defined as when a subject is unable to achieve a reinforcer, receives less of a reinforcer than anticipated, or has to work harder to achieve a reinforcer. RESULTS In these studies, bar-press durations increase when rats are in a state of frustration during self-administration of sucrose, fentanyl, or cocaine. CONCLUSIONS These data also show that average bar-press durations do not correlate with the number of bar presses, meaning that press duration is an independent measurement that represents a behavioral construct distinct from craving, which is typically measured with number of bar presses. Essentially, these results support that bar press durations can be used as a real-time measure of frustration as a 4th major facet of addiction-related behavior, adding to craving, impulsivity, and habit.
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Affiliation(s)
- Tileena E. S. Vasquez
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch,Neuroscience Graduate Program, The University of Texas Medical Branch,Center for Addiction Research, The University of Texas Medical Branch,Mental Health Research Group, The University of Texas Medical Branch
| | - Ryan J. McAuley
- Neuroscience Graduate Program, The University of Texas Medical Branch
| | - Nikita S. Gupta
- Neuroscience Graduate Program, The University of Texas Medical Branch
| | - Shyny Koshy
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch,Center for Addiction Research, The University of Texas Medical Branch,Mental Health Research Group, The University of Texas Medical Branch
| | | | - Thomas A. Green
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch,Neuroscience Graduate Program, The University of Texas Medical Branch,Center for Addiction Research, The University of Texas Medical Branch,Mental Health Research Group, The University of Texas Medical Branch
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18
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Crofton EJ, Nenov MN, Zhang Y, Tapia CM, Donnelly J, Koshy S, Laezza F, Green TA. Topographic transcriptomics of the nucleus accumbens shell: Identification and validation of fatty acid binding protein 5 as target for cocaine addiction. Neuropharmacology 2021; 183:108398. [PMID: 33181146 PMCID: PMC7755097 DOI: 10.1016/j.neuropharm.2020.108398] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2020] [Revised: 10/09/2020] [Accepted: 11/09/2020] [Indexed: 12/22/2022]
Abstract
Substance use disorders for cocaine are major public health concerns with few effective treatment options. Therefore, identification of novel pharmacotherapeutic targets is critical for future therapeutic development. Evolution has ensured that genes are expressed largely only where they are needed. Therefore, examining the gene expression landscape of the nucleus accumbens shell (NAcSh), a brain region important for reward related behaviors, may lead to the identification of novel targets for cocaine use disorder. In this study, we conducted a novel two-step topographic transcriptomic analysis using five seed transcripts with enhanced expression in the NAcSh to identify transcripts with similarly enhanced expression utilizing the correlation feature to search the more than 20,000 in situ hybridization experiments of the Allen Mouse Brain Atlas. Transcripts that correlated with at least three seed transcripts were analyzed with Ingenuity Pathway Analysis (IPA). We identified 7-fold more NAcSh-enhanced transcripts than our previous analysis using single voxels in the NAcSh as the seed. Analysis of the resulting transcripts with IPA identified many previously identified signaling pathways such as retinoic acid signaling as well as novel pathways. Manipulation of the retinoic acid pathway specifically in the NAcSh of male rats via viral vector-mediated RNA interference targeting fatty acid binding protein 5 (FABP5) decreased cocaine self-administration and modulates excitability of medium spiny neurons in the NAcSh. These results not only validate the prospective strategy of conducting a topographic transcriptomic analysis, but also further validate retinoic acid signaling as a promising pathway for pharmacotherapeutic development against cocaine use disorder.
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Affiliation(s)
- Elizabeth J Crofton
- Dept. of Pharmacology and Toxicology, Center for Addiction Research, Mitchell Center for Neurodegenerative Diseases, University of Texas Medical Branch, Galveston, TX, 77555, USA; Neuroscience Graduate Program University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Miroslav N Nenov
- Dept. of Pharmacology and Toxicology, Center for Addiction Research, Mitchell Center for Neurodegenerative Diseases, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Yafang Zhang
- Dept. of Pharmacology and Toxicology, Center for Addiction Research, Mitchell Center for Neurodegenerative Diseases, University of Texas Medical Branch, Galveston, TX, 77555, USA; Pharmacology and Toxicology Graduate Program University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Cynthia M Tapia
- Dept. of Pharmacology and Toxicology, Center for Addiction Research, Mitchell Center for Neurodegenerative Diseases, University of Texas Medical Branch, Galveston, TX, 77555, USA; Pharmacology and Toxicology Graduate Program University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Joseph Donnelly
- Dept. of Pharmacology and Toxicology, Center for Addiction Research, Mitchell Center for Neurodegenerative Diseases, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Shyny Koshy
- Dept. of Pharmacology and Toxicology, Center for Addiction Research, Mitchell Center for Neurodegenerative Diseases, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Fernanda Laezza
- Dept. of Pharmacology and Toxicology, Center for Addiction Research, Mitchell Center for Neurodegenerative Diseases, University of Texas Medical Branch, Galveston, TX, 77555, USA
| | - Thomas A Green
- Dept. of Pharmacology and Toxicology, Center for Addiction Research, Mitchell Center for Neurodegenerative Diseases, University of Texas Medical Branch, Galveston, TX, 77555, USA.
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19
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Choi MR, Jin YB, Kim HN, Chai YG, Im CN, Lee SR, Kim DJ. Gene expression in the striatum of cynomolgus monkeys after chronic administration of cocaine and heroin. Basic Clin Pharmacol Toxicol 2021; 128:686-698. [PMID: 33404192 DOI: 10.1111/bcpt.13554] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 12/26/2020] [Accepted: 01/01/2021] [Indexed: 01/16/2023]
Abstract
Cocaine and heroin cause impairment of neural plasticity in the brain including striatum. This study aimed to identify genes differentially expressed in the striatum of cynomolgus monkeys in response to cocaine and heroin. After chronic administration of cocaine and heroin in the monkeys, we performed large-scale transcriptome profiling in the striatum using RNA-Seq technology and analysed functional annotation. We found that 547 and 1238 transcripts were more than 1.5-fold up- or down-regulated in cocaine- and heroin-treated groups, respectively, compared to the control group, and 3432 transcripts exhibited differential expression between cocaine- and heroin-treated groups. Functional annotation analysis indicated that genes associated with nervous system development (NAGLU, MOBP and TTL7) and stress granule disassembly (KIF5B and KLC1) were differentially expressed in the cocaine-treated group compared to the control group, whereas gene associated with neuron apoptotic process (ERBB3) was differentially expressed in the heroin-treated group. In addition, IPA network analysis indicated that genes (TRAF6 and TRAF3IP2) associated with inflammation were increased by the chronic administration of cocaine and heroin. These results provide insight into the correlated molecular mechanisms as well as the upregulation and down-regulation of genes in the striatum after chronic exposure to cocaine and heroin.
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Affiliation(s)
- Mi Ran Choi
- Department of Psychiatry, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Republic of Korea
| | - Yeung-Bae Jin
- Department of Laboratory Animal Medicine, College of Veterinary Medicine, Gyeongsang National University, Jinju, Republic of Korea
| | - Han-Na Kim
- National Primate Research Center (NPRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, Republic of Korea
| | - Young Gyu Chai
- Department of Molecular and Life Sciences, Hanyang University, Ansan, Republic of Korea
| | - Chang-Nim Im
- Department of Psychiatry, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Republic of Korea
| | - Sang-Rae Lee
- National Primate Research Center (NPRC), Korea Research Institute of Bioscience and Biotechnology (KRIBB), Cheongju, Republic of Korea.,Department of Functional Genomics, University of Science and Technology, Daejeon, Republic of Korea
| | - Dai-Jin Kim
- Department of Psychiatry, Seoul St. Mary's Hospital, The Catholic University of Korea College of Medicine, Seoul, Republic of Korea
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20
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Environmental enrichment-inspired pharmacological tools for the treatment of addiction. Curr Opin Pharmacol 2020; 56:22-28. [PMID: 32966941 DOI: 10.1016/j.coph.2020.09.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2020] [Revised: 09/02/2020] [Accepted: 09/03/2020] [Indexed: 12/16/2022]
Abstract
Environmental enrichment (EE) has been shown to produce powerful beneficial effects in animal models of addiction. In particular, the ability of EE to promote abstinence and prevent relapse may allow for the identification of brain mechanisms responsible for the recovery from addiction. Indeed, the effects of EE on specific brain mechanisms could be mimicked by old or new molecules, which may become novel medications, called enviromimetics. Here, we review the best known enviromimetics for the treatment of addiction and suggest that, whereas these compounds may be relatively ineffective by themselves, they may be useful complements for existing therapeutic approaches to manage addiction which includes behavioural, environmental and pharmacological interventions.
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21
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Environmental enrichment during forced abstinence from cocaine self-administration opposes gene network expression changes associated with the incubation effect. Sci Rep 2020; 10:11291. [PMID: 32647308 PMCID: PMC7347882 DOI: 10.1038/s41598-020-67966-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Accepted: 04/22/2020] [Indexed: 12/16/2022] Open
Abstract
Environmental enrichment (EE) is a robust intervention for reducing cocaine-seeking behaviors in animals when given during forced abstinence. However, the mechanisms that underlie these effects are not well-established. We investigated the adult male rat transcriptome using RNA-sequencing (RNA-seq) following differential housing during forced abstinence from cocaine self-administration for either 1 or 21 days. Enriched, 21-day forced abstinence rats displayed a significant reduction in cocaine-seeking behavior compared to rats housed in isolation. RNA-seq of the nucleus accumbens shell revealed hundreds of differentially regulated transcripts between rats of different forced abstinence length and housing environment, as well as within specific contrasts such as enrichment (isolated 21 days vs. enriched 21 days) or incubation (isolated 1 day vs. isolated 21 days). Ingenuity Pathway Analysis affirmed several pathways as differentially enriched based on housing condition and forced abstinence length including RELN, the Eif2 signaling pathway, synaptogenesis and neurogenesis pathways. Numerous pathways showed upregulation with incubation, but downregulation with EE, suggesting that EE may prevent or reverse changes in gene expression associated with protracted forced abstinence. The findings reveal novel candidate mechanisms involved in the protective effects of EE against cocaine seeking, which may inform efforts to develop pharmacological and gene therapies for treating cocaine use disorders. Furthermore, the finding that EE opposes multiple pathway changes associated with incubation of cocaine seeking strongly supports EE as a therapeutic intervention and suggests EE is capable of preventing or reversing the widespread dysregulation of signaling pathways that occurs during cocaine forced abstinence.
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Green TA, Bardo MT. Opposite regulation of conditioned place preference and intravenous drug self-administration in rodent models: Motivational and non-motivational examples. Neurosci Biobehav Rev 2020; 116:89-98. [PMID: 32534899 DOI: 10.1016/j.neubiorev.2020.06.006] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 06/01/2020] [Accepted: 06/03/2020] [Indexed: 12/13/2022]
Abstract
Although developed from a common antecedent, conditioned place preference (CPP) and intravenous drug self-administration (SA) represent different behavioral paradigms, each with strong face validity. The field has treated results from these studies largely interchangeably; however, there is considerable evidence of opposite modulation of CPP vs. SA. This review outlines four manipulations that differentially affect CPP and SA based on alterations of motivation. These examples are contrasted with one example of differential CPP and SA results that can be explained by simple parallel shifts in dose-response functions. The final two examples have yet to be classified as motivation-based or parallel shifts. Important aspects, including motivation, volitional control of drug administration, reward, and the role of cues are discussed. One major conclusion of this paper is that explanations for apparent discrepancies between CPP and SA require full dose effect functions and assessment of PR breakpoints. Overall, this manuscript offers a more nuanced insight into how CPP and SA can be used to study different aspects of substance use disorders.
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Affiliation(s)
- Thomas A Green
- Department of Pharmacology and Toxicology, University of Texas Medical Branch, United States.
| | - Michael T Bardo
- Department of Psychology, University of Kentucky, United States.
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Sholler DJ, Merritt CR, Davis-Reyes BD, Golovko G, Anastasio NC, Cunningham KA. Inherent Motor Impulsivity Associates with Specific Gene Targets in the Rat Medial Prefrontal Cortex. Neuroscience 2020; 435:161-173. [PMID: 32240784 DOI: 10.1016/j.neuroscience.2020.03.045] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2020] [Revised: 03/22/2020] [Accepted: 03/26/2020] [Indexed: 01/23/2023]
Abstract
High impulsivity characterizes a myriad of neuropsychiatric diseases, and identifying targets for neuropharmacological intervention to reduce impulsivity could reveal transdiagnostic treatment strategies. Motor impulsivity (impulsive action) reflects in part the failure of "top-down" executive control by the medial prefrontal cortex (mPFC). The present study profiled the complete set of mRNA molecules expressed from genes (transcriptome) in the mPFC of male, outbred rats stably expressing high (HI) or low (LI) motor impulsivity based upon premature responses in the 1-choice serial reaction time (1-CSRT) task. RNA-sequencing identified expression of 18 genes that was higher in the mPFC of HI vs. LI rats. Functional gene enrichment revealed that biological processes related to calcium homeostasis and G protein-coupled receptor (GPCR) signaling pathways, particularly glutamatergic, were overrepresented in the mPFC of HI vs. LI rats. Transcription factor enrichment identified mothers against decapentaplegic homolog 4 (SMAD4) and RE1 silencing transcription factor (REST) as overrepresented in the mPFC of HI rats relative to LI rats, while in silico analysis predicted a conserved SMAD binding site within the voltage-gated calcium channel subunit alpha1 E (CACNA1E) promoter region. qRT-PCR analyses confirmed that mRNA expression of CACNA1E, as well as expression of leucyl and cystinyl aminopeptidase (LNPEP), were higher in the mPFC of HI vs. LI rats. These outcomes establish a transcriptomic landscape in the mPFC that is related to individual differences in motor impulsivity and propose novel gene targets for future impulsivity research.
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Affiliation(s)
- Dennis J Sholler
- Center for Addiction Research, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX 77555, USA; Department of Pharmacology and Toxicology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX 77555, USA
| | - Christina R Merritt
- Center for Addiction Research, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX 77555, USA; Department of Pharmacology and Toxicology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX 77555, USA
| | - Brionna D Davis-Reyes
- Center for Addiction Research, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX 77555, USA
| | - George Golovko
- Department of Pharmacology and Toxicology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX 77555, USA
| | - Noelle C Anastasio
- Center for Addiction Research, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX 77555, USA; Department of Pharmacology and Toxicology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX 77555, USA
| | - Kathryn A Cunningham
- Center for Addiction Research, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX 77555, USA; Department of Pharmacology and Toxicology, University of Texas Medical Branch, 301 University Boulevard, Galveston, TX 77555, USA.
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Biological intersection of sex, age, and environment in the corticotropin releasing factor (CRF) system and alcohol. Neuropharmacology 2020; 170:108045. [PMID: 32217364 DOI: 10.1016/j.neuropharm.2020.108045] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2019] [Revised: 02/13/2020] [Accepted: 03/06/2020] [Indexed: 01/21/2023]
Abstract
The neuropeptide corticotropin-releasing factor (CRF) is critical in neural circuit function and behavior, particularly in the context of stress, anxiety, and addiction. Despite a wealth of preclinical evidence for the efficacy of CRF receptor 1 antagonists in reducing behavioral pathology associated with alcohol exposure, several clinical trials have had disappointing outcomes, possibly due to an underappreciation of the role of biological variables. Although he National Institutes of Health (NIH) now mandate the inclusion of sex as a biological variable in all clinical and preclinical research, the current state of knowledge in this area is based almost entirely on evidence from male subjects. Additionally, the influence of biological variables other than sex has received even less attention in the context of neuropeptide signaling. Age (particularly adolescent development) and housing conditions have been shown to affect CRF signaling and voluntary alcohol intake, and the interaction between these biological variables is particularly relevant to the role of the CRF system in the vulnerability or resilience to the development of alcohol use disorder (AUD). Going forward, it will be important to include careful consideration of biological variables in experimental design, reporting, and interpretation. As new research uncovers conditions in which sex, age, and environment play major roles in physiological and/or pathological processes, our understanding of the complex interaction between relevant biological variables and critical signaling pathways like the CRF system in the cellular and behavioral consequences of alcohol exposure will continue to expand ultimately improving the ability of preclinical research to translate to the clinic. This article is part of the special issue on Neuropeptides.
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Yang CD, Cheng ML, Liu W, Zeng DH. Association of serum retinoic acid with depression in patients with acute ischemic stroke. Aging (Albany NY) 2020; 12:2647-2658. [PMID: 32040942 PMCID: PMC7041768 DOI: 10.18632/aging.102767] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2019] [Accepted: 01/12/2020] [Indexed: 12/17/2022]
Abstract
Retinoic acid (RA), produced by the metabolism of vitamin A, makes effects on depression and stroke. This study was aimed to evaluate the relationship between RA levels in serum and post-stroke depression (PSD). A single-center (Chengdu, China) prospective cohort study was conducted on patients with acute ischemic stroke. The RA serum level was measured at admission. The PSD was assessed in the 3-month follow-up. The RA-PSD relationship was evaluated with conditional logistic regression. In total, 239 ischemic stroke cases and 100 healthy controls were included. The median RA serum level in patients with ischemic stroke was 2.45 ng/ml (interquartile range [IQR], 0.72-4.33), lower(P<0.001) than 3.89 ng/ml of those in control cases ([IQR]: 2.62-5.39). The crude and adjusted odds ratios [OR] (and 95% confidence intervals [CI]) of PSD associated with an IQR increase for RA were 0.54 (0.44, 0.67) and 0.66 (0.52, 0.79), respectively. Higher ORs of PSD associated with reduced RA levels (
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Affiliation(s)
- Cai-Di Yang
- Department of Neurology, Eastern Hospital, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu 610101, China
| | - Ming-Li Cheng
- Department of Neurology, People's Hospital of Jianyang, Jianyang 641400, China
| | - Wen Liu
- The Clinical Laboratory Department, Affiliated Hospital of North Sichuan Medical College, Nanchong 637000, China
| | - Ding-Hua Zeng
- Department of Neurology, Eastern Hospital, Sichuan Academy of Medical Sciences and Sichuan Provincial People's Hospital, Chengdu 610101, China
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Zhang Y, Crofton EJ, Smith TES, Koshy S, Li D, Green TA. Manipulation of retinoic acid signaling in the nucleus accumbens shell alters rat emotional behavior. Behav Brain Res 2019; 376:112177. [PMID: 31449909 PMCID: PMC7359447 DOI: 10.1016/j.bbr.2019.112177] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2019] [Revised: 08/22/2019] [Accepted: 08/22/2019] [Indexed: 01/05/2023]
Abstract
Novel targets for depression and anxiety disorders are necessary for the development of more effective pharmacotherapeutics. Our previous study found that the retinoic acid (RA) signaling pathway is the signaling pathway most enhanced in the nucleus accumbens (NAc) shell, a region important for depression, anxiety, and addiction. Genetic manipulations of RA signaling in the NAc affecting addiction-related behavior prompted our study of the role of retinoic acid signaling in depression-related and anxiety-related behavior using in vivo RNA interference. Knockdown of the retinoic acid degradation enzyme cytochrome p450 family 26 subfamily b member 1 (Cyp26b1) in the nucleus accumbens shell increased depression-related behavior while decreasing anxiety-like behavior. Knockdown of the retinoic acid binding protein, cellular RA binding protein 2 (Crabp2), also increased depression-related behavior. Knockdown of another RA binding partner fatty acid binding protein 5 (Fabp5), did not alter these behaviors. These results further support the contention that RA signaling in the NAc shell can affect emotional behavior and that targeting some components of this pathway could be a promising avenue for developing novel treatments for depression and anxiety.
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Affiliation(s)
- Yafang Zhang
- Mental Health Research Group, Center for Addiction Research, Mitchell Center for Neurodegenerative Diseases, Dept. of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX, USA
| | - Elizabeth J Crofton
- Mental Health Research Group, Center for Addiction Research, Mitchell Center for Neurodegenerative Diseases, Dept. of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX, USA
| | - Tileena E S Smith
- Mental Health Research Group, Center for Addiction Research, Mitchell Center for Neurodegenerative Diseases, Dept. of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX, USA
| | - Shyny Koshy
- Mental Health Research Group, Center for Addiction Research, Mitchell Center for Neurodegenerative Diseases, Dept. of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX, USA
| | - Dingge Li
- Mental Health Research Group, Center for Addiction Research, Mitchell Center for Neurodegenerative Diseases, Dept. of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX, USA
| | - Thomas A Green
- Mental Health Research Group, Center for Addiction Research, Mitchell Center for Neurodegenerative Diseases, Dept. of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX, USA.
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Alshammari TK, Alghamdi H, Green TA, Niazy A, Alkahdar L, Alrasheed N, Alhosaini K, Alswayyed M, Elango R, Laezza F, Alshammari MA, Yacoub H. Assessing the role of toll-like receptor in isolated, standard and enriched housing conditions. PLoS One 2019; 14:e0222818. [PMID: 31647818 PMCID: PMC6812767 DOI: 10.1371/journal.pone.0222818] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2019] [Accepted: 09/06/2019] [Indexed: 12/27/2022] Open
Abstract
Depression is a common psychiatric disorder that has been poorly understood. Consequently, current antidepressant agents have clinical limitations. Until today, most have exhibited the slow onset of therapeutic action and, more importantly, their effect on remission has been minimal. Thus, the need to find new forms of therapeutic intervention is urgent. The inflammation hypothesis of depression is widely acknowledged and is one that theories the relationship between the function of the immune system and its contribution to the neurobiology of depression. In this research, we utilized an environmental isolation (EI) approach as a valid animal model of depression, employing biochemical, molecular, and behavioral studies. The aim was to investigate the anti-inflammatory effect of etanercept, a tumor necrosis factor-α inhibitor on a toll-like receptor 7 (TLR 7) signaling pathway in a depressive rat model, and compare these actions to fluoxetine, a standard antidepressant agent. The behavioral analysis indicates that depression-related symptoms are reduced after acute administration of fluoxetine and, to a lesser extent, etanercept, and are prevented by enriched environment (EE) housing conditions. Experimental studies were conducted by evaluating immobility time in the force swim test and pleasant feeling in the sucrose preference test. The mRNA expression of the TLR 7 pathway in the hippocampus showed that TLR 7, MYD88, and TRAF6 were elevated in isolated rats compared to the standard group, and that acute treatment with an antidepressant and anti-inflammatory drugs reversed these effects. This research indicates that stressful events have an impact on behavioral well-being, TLR7 gene expression, and the TLR7 pathway. We also found that peripheral administration of etanercept reduces depressive-like behaviour in isolated rats: this could be due to the indirect modulation of the TLR7 pathway and other TLRs in the brain. Furthermore, fluoxetine treatment reversed depressive-like behaviour and molecularly modulated the expression of TLR7, suggesting that fluoxetine exerts antidepressant effects partially by modulating the TLR7 signaling pathway.
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Affiliation(s)
- Tahani K. Alshammari
- Department of Pharmacology and Toxicology, Pharmacy College, King Saud University, Riyadh, Saudi Arabia
- * E-mail:
| | - Hajar Alghamdi
- Pharmacology & Toxicology Graduate Program, Pharmacy College, King Saud University, Riyadh, Saudi Arabia
| | - Thomas A. Green
- Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX, United States of America
| | - Abdurahman Niazy
- Prince Naïf Bin Abdul-Aziz Health Research Center, King Saud University, Riyadh, Saudi Arabia
| | - Lama Alkahdar
- Department of Pharmacology and Toxicology, Pharmacy College, King Saud University, Riyadh, Saudi Arabia
| | - Nouf Alrasheed
- Department of Pharmacology and Toxicology, Pharmacy College, King Saud University, Riyadh, Saudi Arabia
| | - Khalid Alhosaini
- Department of Pharmacology and Toxicology, Pharmacy College, King Saud University, Riyadh, Saudi Arabia
| | - Mohammed Alswayyed
- Department of Pathology and Laboratory Medicine, College of Medicine, King Saud University Medical City, King Saud University, Riyadh, Saudi Arabia
| | - Ramesh Elango
- Stem Cell Unit, Department of Anatomy, College of Medicine, King Saud University, Riyadh, Saudi Arabia
| | - Fernanda Laezza
- Department of Pharmacology and Toxicology, University of Texas Medical Branch, Galveston, TX, United States of America
| | - Musaad A. Alshammari
- Department of Pharmacology and Toxicology, Pharmacy College, King Saud University, Riyadh, Saudi Arabia
| | - Hazar Yacoub
- Department of Pharmacology and Toxicology, Pharmacy College, King Saud University, Riyadh, Saudi Arabia
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Vestlund J, Kalafateli AL, Studer E, Westberg L, Jerlhag E. Neuromedin U induces self-grooming in socially-stimulated mice. Neuropharmacology 2019; 162:107818. [PMID: 31647973 DOI: 10.1016/j.neuropharm.2019.107818] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 09/17/2019] [Accepted: 10/18/2019] [Indexed: 11/19/2022]
Abstract
Emerging evidence suggest that appetite-regulating peptides modulate social behaviors. We here investigate whether the anorexigenic peptide neuromedin U (NMU) modulates sexual behavior in male mice. However, instead of modulating sexual behaviors, NMU administered into the third ventricle increased self-grooming behavior. In addition, NMU-treatment increased self-grooming behavior when exposed to other mice or olfactory social-cues, but not when exposed to non-social environments. As the neuropeptide oxytocin is released during social investigation and exogenous oxytocin induces self-grooming, its role in NMU-induced self-grooming behavior was investigated. In line with our hypothesis, the oxytocin receptor antagonist inhibited NMU-induced self-grooming behavior in mice exposed to olfactory social-cues. Moreover, dopamine in the mesocorticolimbic system is known to be a key regulator of self-grooming behavior. In line with this, we proved that infusion of NMU into nucleus accumbens increased self-grooming behavior in mice confronted with an olfactory social-cue and that this behavior was inhibited by antagonism of dopamine D2, but not D1/D5, receptors. Moreover repeated NMU treatment enhanced ex vivo dopamine levels and decreased the expression of dopamine D2 receptors in nucleus accumbens in socially housed mice. On the other hand, the olfactory stimuli-dependent NMU-induced self-grooming was not affected by a corticotrophin-releasing hormone antagonist, and NMU-treatment did not influence repetitive behaviors in the marble burying test. In conclusion, our results suggest that NMU treatment and, social cues - potentially triggering oxytocin release - together induce excessive grooming behavior in male mice. The mesolimbic dopamine system, including accumbal dopamine D2 receptors, was identified as a crucial downstream mechanism.
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Affiliation(s)
- Jesper Vestlund
- Institute of Neuroscience and Physiology, Department of Pharmacology, The Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Aimilia Lydia Kalafateli
- Institute of Neuroscience and Physiology, Department of Pharmacology, The Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Erik Studer
- Institute of Neuroscience and Physiology, Department of Pharmacology, The Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Lars Westberg
- Institute of Neuroscience and Physiology, Department of Pharmacology, The Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden
| | - Elisabet Jerlhag
- Institute of Neuroscience and Physiology, Department of Pharmacology, The Sahlgrenska Academy at the University of Gothenburg, Gothenburg, Sweden.
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Forero DA, González-Giraldo Y. Convergent functional genomics of cocaine misuse in humans and animal models. THE AMERICAN JOURNAL OF DRUG AND ALCOHOL ABUSE 2019; 46:22-30. [DOI: 10.1080/00952990.2019.1636384] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Diego A. Forero
- Laboratory of NeuroPsychiatric Genetics, Biomedical Sciences Research Group, School of Medicine, Universidad Antonio Nariño, Bogotá, Colombia
- Health Sciences, School of Medicine, Universidad Antonio Nariño, Bogotá, Colombia
| | - Yeimy González-Giraldo
- Departamento de Nutrición y Bioquímica, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, Colombia
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Walker DM, Cates HM, Loh YHE, Purushothaman I, Ramakrishnan A, Cahill KM, Lardner CK, Godino A, Kronman HG, Rabkin J, Lorsch ZS, Mews P, Doyle MA, Feng J, Labonté B, Koo JW, Bagot RC, Logan RW, Seney ML, Calipari ES, Shen L, Nestler EJ. Cocaine Self-administration Alters Transcriptome-wide Responses in the Brain's Reward Circuitry. Biol Psychiatry 2018; 84:867-880. [PMID: 29861096 PMCID: PMC6202276 DOI: 10.1016/j.biopsych.2018.04.009] [Citation(s) in RCA: 107] [Impact Index Per Article: 17.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Revised: 03/15/2018] [Accepted: 04/17/2018] [Indexed: 11/29/2022]
Abstract
BACKGROUND Global changes in gene expression underlying circuit and behavioral dysregulation associated with cocaine addiction remain incompletely understood. Here, we show how a history of cocaine self-administration (SA) reprograms transcriptome-wide responses throughout the brain's reward circuitry at baseline and in response to context and/or cocaine re-exposure after prolonged withdrawal (WD). METHODS We assigned male mice to one of six groups: saline/cocaine SA + 24-hour WD or saline/cocaine SA + 30-day WD + an acute saline/cocaine challenge within the previous drug-paired context. RNA sequencing was conducted on six interconnected brain reward regions. Using pattern analysis of gene expression and factor analysis of behavior, we identified genes that are strongly associated with addiction-related behaviors and uniquely altered by a history of cocaine SA. We then identified potential upstream regulators of these genes. RESULTS We focused on three patterns of gene expression that reflect responses to 1) acute cocaine, 2) context re-exposure, and 3) drug + context re-exposure. These patterns revealed region-specific regulation of gene expression. Further analysis revealed that each of these gene expression patterns correlated with an addiction index-a composite score of several addiction-like behaviors during cocaine SA-in a region-specific manner. Cyclic adenosine monophosphate response element binding protein and nuclear receptor families were identified as key upstream regulators of genes associated with such behaviors. CONCLUSIONS This comprehensive picture of transcriptome-wide regulation in the brain's reward circuitry by cocaine SA and prolonged WD provides new insight into the molecular basis of cocaine addiction, which will guide future studies of the key molecular pathways involved.
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Affiliation(s)
- Deena M Walker
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Hannah M Cates
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Yong-Hwee E Loh
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Immanuel Purushothaman
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Aarthi Ramakrishnan
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Kelly M Cahill
- Department of Biostatistics, Graduate School of Public Health, University of Pittsburgh, Pittsburgh, Pennsylvania
| | - Casey K Lardner
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Arthur Godino
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Hope G Kronman
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Jacqui Rabkin
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Zachary S Lorsch
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Philipp Mews
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Marie A Doyle
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Jian Feng
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Benoit Labonté
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Ja Wook Koo
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Rosemary C Bagot
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Ryan W Logan
- Department of Psychiatry, University of Pittsburgh Medical School, Pittsburgh, Pennsylvania; Translational Neuroscience Program, University of Pittsburgh Medical School, Pittsburgh, Pennsylvania; Center for Systems Neurogenetics of Addiction, The Jackson Laboratory, Bar Harbor, Maine
| | - Marianne L Seney
- Department of Psychiatry, University of Pittsburgh Medical School, Pittsburgh, Pennsylvania; Translational Neuroscience Program, University of Pittsburgh Medical School, Pittsburgh, Pennsylvania
| | - Erin S Calipari
- Department of Pharmacology, Vanderbilt Center for Addiction Research, Vanderbilt University School of Medicine, Nashville, Tennessee.
| | - Li Shen
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York
| | - Eric J Nestler
- Fishberg Department of Neuroscience and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, New York.
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De Sa Nogueira D, Merienne K, Befort K. Neuroepigenetics and addictive behaviors: Where do we stand? Neurosci Biobehav Rev 2018; 106:58-72. [PMID: 30205119 DOI: 10.1016/j.neubiorev.2018.08.018] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2018] [Revised: 07/28/2018] [Accepted: 08/29/2018] [Indexed: 12/21/2022]
Abstract
Substance use disorders involve long-term changes in the brain that lead to compulsive drug seeking, craving, and a high probability of relapse. Recent findings have highlighted the role of epigenetic regulations in controlling chromatin access and regulation of gene expression following exposure to drugs of abuse. In the present review, we focus on data investigating genome-wide epigenetic modifications in the brain of addicted patients or in rodent models exposed to drugs of abuse, with a particular focus on DNA methylation and histone modifications associated with transcriptional studies. We highlight critical factors for epigenomic studies in addiction. We discuss new findings related to psychostimulants, alcohol, opiate, nicotine and cannabinoids. We examine the possible transmission of these changes across generations. We highlight developing tools, specifically those that allow investigation of structural reorganization of the chromatin. These have the potential to increase our understanding of alteration of chromatin architecture at gene regulatory regions. Neuroepigenetic mechanisms involved in addictive behaviors could explain persistent phenotypic effects of drugs and, in particular, vulnerability to relapse.
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Affiliation(s)
- David De Sa Nogueira
- Laboratoire de Neurosciences Cognitives et Adaptatives (LNCA), UMR 7364, CNRS, Université de Strasbourg, Team 3 « Abuse of Drugs and Neuroadaptations », Faculté de Psychologie, 12 rue Goethe, F-67000, France
| | - Karine Merienne
- Laboratoire de Neurosciences Cognitives et Adaptatives (LNCA), UMR 7364, CNRS, Université de Strasbourg, Team 1 « Dynamics of Memory and Epigenetics », Faculté de Psychologie, 12 rue Goethe, F-67000, France
| | - Katia Befort
- Laboratoire de Neurosciences Cognitives et Adaptatives (LNCA), UMR 7364, CNRS, Université de Strasbourg, Team 3 « Abuse of Drugs and Neuroadaptations », Faculté de Psychologie, 12 rue Goethe, F-67000, France.
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Vannan A, Powell GL, Scott SN, Pagni BA, Neisewander JL. Animal Models of the Impact of Social Stress on Cocaine Use Disorders. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2018; 140:131-169. [PMID: 30193703 DOI: 10.1016/bs.irn.2018.07.005] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Cocaine use disorders are strongly influenced by the social conditions prior, during, and after exposure to cocaine. In this chapter, we discuss how social factors such as early life stress, social rank stress, and environmental stress impact vulnerability and resilience to cocaine. The discussion of each animal model begins with a brief review of examples from the human literature, which provide the psychosocial background these models attempt to capture. We then discuss preclinical findings from use of each model, with emphasis on how social factors influence cocaine-related behaviors and how sex and age influence the behaviors and neurobiology. Models discussed include (1) early life social stress, such as maternal separation and neonatal isolation, (2) social defeat stress, (3) social hierarchies, and (4) social isolation and environmental enrichment. The cocaine-related behaviors reviewed for each of these animal models include cocaine-induced conditioned place preference, behavioral sensitization, and self-administration. Together, our review suggests that the degree of psychosocial stress experienced yields robust effects on cocaine-related behaviors and neurobiology, and these preclinical findings have translational impact for the future of cocaine use disorder treatment.
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Affiliation(s)
- Annika Vannan
- School of Life Sciences, Arizona State University, Tempe, AZ, United States
| | - Gregory L Powell
- School of Life Sciences, Arizona State University, Tempe, AZ, United States
| | - Samantha N Scott
- School of Life Sciences, Arizona State University, Tempe, AZ, United States
| | - Broc A Pagni
- School of Life Sciences, Arizona State University, Tempe, AZ, United States
| | - Janet L Neisewander
- School of Life Sciences, Arizona State University, Tempe, AZ, United States.
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Scala F, Nenov MN, Crofton EJ, Singh AK, Folorunso O, Zhang Y, Chesson BC, Wildburger NC, James TF, Alshammari MA, Alshammari TK, Elfrink H, Grassi C, Kasper JM, Smith AE, Hommel JD, Lichti CF, Rudra JS, D'Ascenzo M, Green TA, Laezza F. Environmental Enrichment and Social Isolation Mediate Neuroplasticity of Medium Spiny Neurons through the GSK3 Pathway. Cell Rep 2018; 23:555-567. [PMID: 29642012 PMCID: PMC6150488 DOI: 10.1016/j.celrep.2018.03.062] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2017] [Revised: 02/05/2018] [Accepted: 03/14/2018] [Indexed: 11/29/2022] Open
Abstract
Resilience and vulnerability to neuropsychiatric disorders are linked to molecular changes underlying excitability that are still poorly understood. Here, we identify glycogen-synthase kinase 3β (GSK3β) and voltage-gated Na+ channel Nav1.6 as regulators of neuroplasticity induced by environmentally enriched (EC) or isolated (IC) conditions-models for resilience and vulnerability. Transcriptomic studies in the nucleus accumbens from EC and IC rats predicted low levels of GSK3β and SCN8A mRNA as a protective phenotype associated with reduced excitability in medium spiny neurons (MSNs). In vivo genetic manipulations demonstrate that GSK3β and Nav1.6 are molecular determinants of MSN excitability and that silencing of GSK3β prevents maladaptive plasticity of IC MSNs. In vitro studies reveal direct interaction of GSK3β with Nav1.6 and phosphorylation at Nav1.6T1936 by GSK3β. A GSK3β-Nav1.6T1936 competing peptide reduces MSNs excitability in IC, but not EC rats. These results identify GSK3β regulation of Nav1.6 as a biosignature of MSNs maladaptive plasticity.
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Affiliation(s)
- Federico Scala
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX 77550, USA; Biophysics Graduate Program, Institute of Human Physiology, Università Cattolica, Rome, Italy
| | - Miroslav N Nenov
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX 77550, USA
| | - Elizabeth J Crofton
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX 77550, USA; Neuroscience Graduate Program, The University of Texas Medical Branch, Galveston, TX 77550, USA
| | - Aditya K Singh
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX 77550, USA
| | - Oluwarotimi Folorunso
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX 77550, USA
| | - Yafang Zhang
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX 77550, USA; Pharmacology and Toxicology Graduate Program, The University of Texas Medical Branch, Galveston, TX 77550, USA
| | - Brent C Chesson
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX 77550, USA; Pharmacology and Toxicology Graduate Program, The University of Texas Medical Branch, Galveston, TX 77550, USA
| | - Norelle C Wildburger
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX 77550, USA
| | - Thomas F James
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX 77550, USA; Neuroscience Graduate Program, The University of Texas Medical Branch, Galveston, TX 77550, USA
| | - Musaad A Alshammari
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX 77550, USA; Pharmacology and Toxicology Graduate Program, The University of Texas Medical Branch, Galveston, TX 77550, USA; Studies Abroad Program, King Saud University, Riyadh, Saudi Arabia
| | - Tahani K Alshammari
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX 77550, USA; Pharmacology and Toxicology Graduate Program, The University of Texas Medical Branch, Galveston, TX 77550, USA; Studies Abroad Program, King Saud University, Riyadh, Saudi Arabia
| | - Hannah Elfrink
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX 77550, USA; Bench Tutorials Program: Scientific Research and Design, The University of Texas Medical Branch, Galveston, TX 77550, USA
| | - Claudio Grassi
- Institute of Human Physiology, Università Cattolica, Rome, Italy; Fondazione Policlinico Universitario A. Gemelli, Rome, Italy
| | - James M Kasper
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX 77550, USA; Center for Addiction Research, The University of Texas Medical Branch, Galveston, TX 77550, USA
| | - Ashley E Smith
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX 77550, USA; Center for Addiction Research, The University of Texas Medical Branch, Galveston, TX 77550, USA; Cell Biology Graduate Program, The University of Texas Medical Branch, Galveston, TX 77550, USA
| | - Jonathan D Hommel
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX 77550, USA; Center for Addiction Research, The University of Texas Medical Branch, Galveston, TX 77550, USA
| | - Cheryl F Lichti
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX 77550, USA; Mitchell Center for Neurodegenerative Diseases, The University of Texas Medical Branch, Galveston, TX 77550, USA
| | - Jai S Rudra
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX 77550, USA
| | | | - Thomas A Green
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX 77550, USA; Center for Addiction Research, The University of Texas Medical Branch, Galveston, TX 77550, USA
| | - Fernanda Laezza
- Department of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX 77550, USA; Mitchell Center for Neurodegenerative Diseases, The University of Texas Medical Branch, Galveston, TX 77550, USA; Center for Addiction Research, The University of Texas Medical Branch, Galveston, TX 77550, USA.
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Zhang Y, Crofton EJ, Fan X, Li D, Kong F, Sinha M, Luxon BA, Spratt HM, Lichti CF, Green TA. Convergent transcriptomics and proteomics of environmental enrichment and cocaine identifies novel therapeutic strategies for addiction. Neuroscience 2016; 339:254-266. [PMID: 27717806 DOI: 10.1016/j.neuroscience.2016.09.051] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2016] [Revised: 09/21/2016] [Accepted: 09/30/2016] [Indexed: 11/25/2022]
Abstract
Transcriptomic and proteomic approaches have separately proven effective at identifying novel mechanisms affecting addiction-related behavior; however, it is difficult to prioritize the many promising leads from each approach. A convergent secondary analysis of proteomic and transcriptomic results can glean additional information to help prioritize promising leads. The current study is a secondary analysis of the convergence of recently published separate transcriptomic and proteomic analyses of nucleus accumbens (NAc) tissue from rats subjected to environmental enrichment vs. isolation and cocaine self-administration vs. saline. Multiple bioinformatics approaches (e.g. Gene Ontology (GO) analysis, Ingenuity Pathway Analysis (IPA), and Gene Set Enrichment Analysis (GSEA)) were used to interrogate these rich data sets. Although there was little correspondence between mRNA vs. protein at the individual target level, good correspondence was found at the level of gene/protein sets, particularly for the environmental enrichment manipulation. These data identify gene sets where there is a positive relationship between changes in mRNA and protein (e.g. glycolysis, ATP synthesis, translation elongation factor activity, etc.) and gene sets where there is an inverse relationship (e.g. ribosomes, Rho GTPase signaling, protein ubiquitination, etc.). Overall environmental enrichment produced better correspondence than cocaine self-administration. The individual targets contributing to mRNA and protein effects were largely not overlapping. As a whole, these results confirm that robust transcriptomic and proteomic data sets can provide similar results at the gene/protein set level even when there is little correspondence at the individual target level and little overlap in the targets contributing to the effects.
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Affiliation(s)
- Yafang Zhang
- Center for Addiction Research, The University of Texas Medical Branch, Galveston, TX, USA; Dept. of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX, USA; Mitchell Center for Neurodegenerative Diseases, The University of Texas Medical Branch, Galveston, TX, USA
| | - Elizabeth J Crofton
- Center for Addiction Research, The University of Texas Medical Branch, Galveston, TX, USA; Dept. of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX, USA; Mitchell Center for Neurodegenerative Diseases, The University of Texas Medical Branch, Galveston, TX, USA
| | - Xiuzhen Fan
- Center for Addiction Research, The University of Texas Medical Branch, Galveston, TX, USA; Dept. of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX, USA; Mitchell Center for Neurodegenerative Diseases, The University of Texas Medical Branch, Galveston, TX, USA
| | - Dingge Li
- Center for Addiction Research, The University of Texas Medical Branch, Galveston, TX, USA; Dept. of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX, USA; Mitchell Center for Neurodegenerative Diseases, The University of Texas Medical Branch, Galveston, TX, USA
| | - Fanping Kong
- Dept. of Biochemistry and Molecular Biology, The University of Texas Medical Branch, Galveston, TX, USA
| | - Mala Sinha
- Sealy Center for Molecular Medicine, Institute for Translational Science, The University of Texas Medical Branch, Galveston, TX, USA
| | - Bruce A Luxon
- Dept. of Biochemistry and Molecular Biology, The University of Texas Medical Branch, Galveston, TX, USA; Sealy Center for Molecular Medicine, Institute for Translational Science, The University of Texas Medical Branch, Galveston, TX, USA
| | - Heidi M Spratt
- Dept. of Biochemistry and Molecular Biology, The University of Texas Medical Branch, Galveston, TX, USA; Sealy Center for Molecular Medicine, Institute for Translational Science, The University of Texas Medical Branch, Galveston, TX, USA; Dept. of Preventative Medicine and Community Health, The University of Texas Medical Branch, Galveston, TX, USA
| | - Cheryl F Lichti
- Dept. of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX, USA; Mitchell Center for Neurodegenerative Diseases, The University of Texas Medical Branch, Galveston, TX, USA
| | - Thomas A Green
- Center for Addiction Research, The University of Texas Medical Branch, Galveston, TX, USA; Dept. of Pharmacology and Toxicology, The University of Texas Medical Branch, Galveston, TX, USA; Mitchell Center for Neurodegenerative Diseases, The University of Texas Medical Branch, Galveston, TX, USA.
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