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Leconte C, Mongeau R, Noble F. Traumatic Stress-Induced Vulnerability to Addiction: Critical Role of the Dynorphin/Kappa Opioid Receptor System. Front Pharmacol 2022; 13:856672. [PMID: 35571111 PMCID: PMC9091501 DOI: 10.3389/fphar.2022.856672] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 04/07/2022] [Indexed: 11/13/2022] Open
Abstract
Substance use disorders (SUD) may emerge from an individual’s attempt to limit negative affective states and symptoms linked to stress. Indeed, SUD is highly comorbid with chronic stress, traumatic stress, or post-traumatic stress disorder (PTSD), and treatments approved for each pathology individually often failed to have a therapeutic efficiency in such comorbid patients. The kappa-opioid receptor (KOR) and its endogenous ligand dynorphin (DYN), seem to play a key role in the occurrence of this comorbidity. The DYN/KOR function is increased either in traumatic stress or during drug use, dependence acquisition and DYN is released during stress. The behavioural effects of stress related to the DYN/KOR system include anxiety, dissociative and depressive symptoms, as well as increased conditioned fear response. Furthermore, the DYN/KOR system is implicated in negative reinforcement after the euphoric effects of a drug of abuse ends. During chronic drug consumption DYN/KOR functions increase and facilitate tolerance and dependence. The drug-seeking behaviour induced by KOR activation can be retrieved either during the development of an addictive behaviour, or during relapse after withdrawal. DYN is known to be one of the most powerful negative modulators of dopamine signalling, notably in brain structures implicated in both reward and fear circuitries. KOR are also acting as inhibitory heteroreceptors on serotonin neurons. Moreover, the DYN/KOR system cross-regulate with corticotropin-releasing factor in the brain. The sexual dimorphism of the DYN/KOR system could be the cause of the gender differences observed in patients with SUD or/and traumatic stress-related pathologies. This review underlies experimental and clinical results emphasizing the DYN/KOR system as common mechanisms shared by SUD or/and traumatic stress-related pathologies, and suggests KOR antagonist as a new pharmacological strategy to treat this comorbidity.
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García-Domínguez M, González-Rodríguez S, Hidalgo A, Baamonde A, Menéndez L. Kappa-opioid receptor-mediated thermal analgesia evoked by the intrathecal administration of the chemokine CCL1 in mice. Fundam Clin Pharmacol 2021; 35:1109-1118. [PMID: 33905573 DOI: 10.1111/fcp.12685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2020] [Indexed: 11/30/2022]
Abstract
BACKGROUND The chemokine CC motif ligand 1 (CCL1) participates in immune cell recruitment and, as other chemokines, is also involved in nociceptive processing. In contrast with previous reports indicating its participation in allodynia and cold hypernociception when spinally administered, its ability to evoke heat thermal analgesia, mediated by circulating leukocytes and endocannabinoids, after systemic administration has recently been reported. OBJECTIVES Aiming to explore the role played by CCL1 on spinal nociception, we study here the effect of its intrathecal administration on thermal nociception in mice. METHODS Behavioral nociceptive assays, immunohistochemical experiments, white cell blood depletion procedures and qRT-PCR experiments were performed. RESULTS The intrathecal administration of CCL1 (0.3-30 ng) produced analgesia as measured by the unilateral hot plate test. This effect peaked 1 h after injection, was prevented by the CCR8 antagonist R243 and was accompanied by a reduction of c-Fos expression in spinal neurons. Whereas blood leukocyte depletion did not modify it, analgesia was abolished by the microglial inhibitor minocycline, but not the astroglial inhibitor aminoadipate. Furthermore, antinociception remained unmodified by the coadministration of cannabinoid type 1 or 2 receptors antagonists. However, it was reversed by naloxone but not by selective blockade of mu- or delta-opioid receptors. The inhibitory effect induced by the selective kappa-opioid receptor antagonist, nor-binaltorphimine, and by an anti-dynorphin A 1-17 antibody indicates that analgesia evoked by spinal CCL1 is mediated by endogenous dynorphins acting on kappa-opioid receptors. CONCLUSIONS Endogenous dynorphin and microglia behave as key players in heat thermal analgesia evoked by spinal CCL1 in mice.
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Affiliation(s)
- Mario García-Domínguez
- Laboratorio de Farmacología, Facultad de Medicina, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
| | - Sara González-Rodríguez
- Laboratorio de Farmacología, Facultad de Medicina, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
| | - Agustín Hidalgo
- Laboratorio de Farmacología, Facultad de Medicina, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
| | - Ana Baamonde
- Laboratorio de Farmacología, Facultad de Medicina, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
| | - Luis Menéndez
- Laboratorio de Farmacología, Facultad de Medicina, Instituto Universitario de Oncología del Principado de Asturias (IUOPA), Universidad de Oviedo, Instituto de Investigación Sanitaria del Principado de Asturias (ISPA), Oviedo, Spain
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Emery MA, Akil H. Endogenous Opioids at the Intersection of Opioid Addiction, Pain, and Depression: The Search for a Precision Medicine Approach. Annu Rev Neurosci 2020; 43:355-374. [PMID: 32109184 PMCID: PMC7646290 DOI: 10.1146/annurev-neuro-110719-095912] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Opioid addiction and overdose are at record levels in the United States. This is driven, in part, by their widespread prescription for the treatment of pain, which also increased opportunity for diversion by sensation-seeking users. Despite considerable research on the neurobiology of addiction, treatment options for opioid abuse remain limited. Mood disorders, particularly depression, are often comorbid with both pain disorders and opioid abuse. The endogenous opioid system, a complex neuromodulatory system, sits at the neurobiological convergence point of these three comorbid disease states. We review evidence for dysregulation of the endogenous opioid system as a mechanism for the development of opioid addiction and/or mood disorder. Specifically, individual differences in opioid system function may underlie differences in vulnerability to opioid addiction and mood disorders. We also review novel research, which promises to provide more detailed understanding of individual differences in endogenous opioid neurobiology and its contribution to opioid addiction susceptibility.
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Affiliation(s)
- Michael A Emery
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor, Michigan 48109, USA;
| | - Huda Akil
- Michigan Neuroscience Institute, University of Michigan, Ann Arbor, Michigan 48109, USA;
- Department of Psychiatry, University of Michigan, Ann Arbor, Michigan 48109, USA
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4
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He XP, Tian H. Lightening Up Membrane Receptors with Fluorescent Molecular Probes and Supramolecular Materials. Chem 2018. [DOI: 10.1016/j.chempr.2017.11.006] [Citation(s) in RCA: 42] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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5
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Opiates Modulate Noxious Chemical Nociception through a Complex Monoaminergic/Peptidergic Cascade. J Neurosci 2017; 36:5498-508. [PMID: 27194330 DOI: 10.1523/jneurosci.4520-15.2016] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2015] [Accepted: 04/13/2016] [Indexed: 01/11/2023] Open
Abstract
UNLABELLED The ability to detect noxious stimuli, process the nociceptive signal, and elicit an appropriate behavioral response is essential for survival. In Caenorhabditis elegans, opioid receptor agonists, such as morphine, mimic serotonin, and suppress the overall withdrawal from noxious stimuli through a pathway requiring the opioid-like receptor, NPR-17. This serotonin- or morphine-dependent modulation can be rescued in npr-17-null animals by the expression of npr-17 or a human κ opioid receptor in the two ASI sensory neurons, with ASI opioid signaling selectively inhibiting ASI neuropeptide release. Serotonergic modulation requires peptides encoded by both nlp-3 and nlp-24, and either nlp-3 or nlp-24 overexpression mimics morphine and suppresses withdrawal. Peptides encoded by nlp-3 act differentially, with only NLP-3.3 mimicking morphine, whereas other nlp-3 peptides antagonize NLP-3.3 modulation. Together, these results demonstrate that opiates modulate nociception in Caenorhabditis elegans through a complex monoaminergic/peptidergic cascade, and suggest that this model may be useful for dissecting opiate signaling in mammals. SIGNIFICANCE STATEMENT Opiates are used extensively to treat chronic pain. In Caenorhabditis elegans, opioid receptor agonists suppress the overall withdrawal from noxious chemical stimuli through a pathway requiring an opioid-like receptor and two distinct neuropeptide-encoding genes, with individual peptides from the same gene functioning antagonistically to modulate nociception. Endogenous opioid signaling functions as part of a complex, monoaminergic/peptidergic signaling cascade and appears to selectively inhibit neuropeptide release, mediated by a α-adrenergic-like receptor, from two sensory neurons. Importantly, receptor null animals can be rescued by the expression of the human κ opioid receptor, and injection of human opioid receptor ligands mimics exogenous opiates, highlighting the utility of this model for dissecting opiate signaling in mammals.
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Dou WT, Kong Y, He XP, Chen GR, Zang Y, Li J, Tian H. GPCR Activation and Endocytosis Induced by a 2D Material Agonist. ACS APPLIED MATERIALS & INTERFACES 2017; 9:14709-14715. [PMID: 28401756 DOI: 10.1021/acsami.7b02754] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Agonist-induced activation and endocytosis of G protein-coupled receptors (GPCRs) are crucial for a number of physiological and pathological processes. However, tools that are available for probing GPCR endocytosis have been insufficient. Here, we developed a two-dimensional (2D) material agonist by supramolecular self-assembly between an endogenous agonist of κ-opioid receptor (KOR) and 2D molybdenum disulfide. The 2D material agonist has proven to be amenable for eliciting GPCR activation and endocytosis in cells stably expressing KOR rather than in those without KOR expression. Using super-resolution microscopy, we also show that the 2D material agonist colocalizes well with GFP-fused KOR intracellularly. Further, the endocytosed 2D material agonist can selectively produce reactive oxygen species in cells that overly express KOR, as controlled by light irradiation.
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Affiliation(s)
- Wei-Tao Dou
- Key Laboratory for Advanced Materials & Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology , 130 Meilong Road, Shanghai 200237, P. R. China
| | - Ya Kong
- National Center for Drug Screening, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 189 Guo Shoujing Road, Shanghai 201203, P. R. China
- University of Chinese Academy of Sciences, UCAS , No. 19A, Yuquan Road, Beijing 100049, P. R. China
| | - Xiao-Peng He
- Key Laboratory for Advanced Materials & Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology , 130 Meilong Road, Shanghai 200237, P. R. China
| | - Guo-Rong Chen
- Key Laboratory for Advanced Materials & Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology , 130 Meilong Road, Shanghai 200237, P. R. China
| | - Yi Zang
- National Center for Drug Screening, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 189 Guo Shoujing Road, Shanghai 201203, P. R. China
- University of Chinese Academy of Sciences, UCAS , No. 19A, Yuquan Road, Beijing 100049, P. R. China
| | - Jia Li
- National Center for Drug Screening, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences , 189 Guo Shoujing Road, Shanghai 201203, P. R. China
- University of Chinese Academy of Sciences, UCAS , No. 19A, Yuquan Road, Beijing 100049, P. R. China
| | - He Tian
- Key Laboratory for Advanced Materials & Institute of Fine Chemicals, School of Chemistry and Molecular Engineering, East China University of Science and Technology , 130 Meilong Road, Shanghai 200237, P. R. China
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7
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Panahi Y, Saboory E, Rassouli A, Sadeghi‐Hashjin G, Roshan‐Milani S, Derafshpour L, Rasmi Y. The effect of selective opioid receptor agonists and antagonists on epileptiform activity in morphine‐dependent infant mice hippocampal slices. Int J Dev Neurosci 2017; 60:56-62. [DOI: 10.1016/j.ijdevneu.2017.04.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2017] [Revised: 04/01/2017] [Accepted: 04/24/2017] [Indexed: 01/13/2023] Open
Affiliation(s)
- Yousef Panahi
- Department of Pharmacology, Faculty of Veterinary MedicineUniversity of TehranTehranIran
| | - Ehsan Saboory
- Neurophysiology Research Center, Urmia University of Medical SciencesUrmiaIran
| | - Ali Rassouli
- Department of Pharmacology, Faculty of Veterinary MedicineUniversity of TehranTehranIran
| | | | - Shiva Roshan‐Milani
- Department of Physiology, Faculty of MedicineUrmia University of Medical SciencesUrmiaIran
| | - Leila Derafshpour
- Neurophysiology Research Center, Urmia University of Medical SciencesUrmiaIran
| | - Yousef Rasmi
- Cellular and Molecular Research Center, Urmia University of Medical SciencesUrmiaIran
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8
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Orduna AR, Beaudry F. Characterization of endoproteolytic processing of dynorphins by proprotein convertases using mouse spinal cord S9 fractions and mass spectrometry. Neuropeptides 2016; 57:85-94. [PMID: 26578270 DOI: 10.1016/j.npep.2015.10.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 10/09/2015] [Accepted: 10/11/2015] [Indexed: 12/21/2022]
Abstract
Dynorphins are important neuropeptides with a central role in nociception and pain alleviation. Many mechanisms regulate endogenous dynorphin concentrations, including proteolysis. Proprotein convertases (PCs) are widely expressed in the central nervous system and specifically cleave at C-terminal of either a pair of basic amino acids, or a single basic residue. The proteolysis control of endogenous big dynorphin (BDyn) and dynorphin A (Dyn A) levels has a profound impact on pain perception and the role of PCs remain unclear. The objective of this study was to decipher the role of PC1 and PC2 in the proteolysis control of BDyn and Dyn A levels using cellular fractions of spinal cords from wild-type (WT), PC1(-/+) and PC2(-/+) animals and mass spectrometry. Our results clearly demonstrate that both PC1 and PC2 are involved in the proteolysis regulation of BDyn and Dyn A with a more important role for PC1. C-terminal processing of BDyn generates specific peptide fragments dynorphin 1-19, dynorphin 1-13, dynorphin 1-11 and dynorphin 1-7, and C-terminal processing of Dyn A generates dynorphin 1-13, dynorphin 1-11 and dynorphin 1-7, all these peptide fragments are associated with PC1 or PC2 processing. Moreover, the proteolysis of BDyn leads to the formation of Dyn A and Leu-Enk, two important opioid peptides. The rate of formation of both is significantly reduced in cellular fractions of spinal cord mutant mice. As a consequence, even the partial inhibition of PC1 or PC2 may impair the endogenous opioid system.
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Affiliation(s)
- Alberto Ruiz Orduna
- Groupe de Recherche en Pharmacologie Animal du Québec (GREPAQ), Faculté de Médecine Vétérinaire, Département de Biomédecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, Québec, Canada
| | - Francis Beaudry
- Groupe de Recherche en Pharmacologie Animal du Québec (GREPAQ), Faculté de Médecine Vétérinaire, Département de Biomédecine Vétérinaire, Université de Montréal, Saint-Hyacinthe, Québec, Canada.
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9
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Shagiakhmetov FS, Proskuryakova TV, Shamakina IY. The dynorphin/kappa-opioid system of the brain as a promising target for therapy for dependence on psychoactive substances. NEUROCHEM J+ 2015. [DOI: 10.1134/s1819712415040157] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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10
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Zhou L, Stahl EL, Lovell KM, Frankowski KJ, Prisinzano TE, Aubé J, Bohn LM. Characterization of kappa opioid receptor mediated, dynorphin-stimulated [35S]GTPγS binding in mouse striatum for the evaluation of selective KOR ligands in an endogenous setting. Neuropharmacology 2015; 99:131-41. [PMID: 26160155 DOI: 10.1016/j.neuropharm.2015.07.001] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/09/2015] [Revised: 06/07/2015] [Accepted: 07/03/2015] [Indexed: 11/29/2022]
Abstract
Differential modulation of kappa opioid receptor (KOR) signaling has been a proposed strategy for developing therapies for drug addiction and depression by either activating or blocking this receptor. Hence, there have been significant efforts to generate ligands with diverse pharmacological properties including partial agonists, antagonists, allosteric modulators as well as ligands that selectively activate some pathways while not engaging others (biased agonists). It is becoming increasingly evident that G protein coupled receptor signaling events are context dependent and that what may occur in cell based assays may not be fully indicative of signaling events that occur in the naturally occurring environment. As new ligands are developed, it is important to assess their signaling capacity in relevant endogenous systems in comparison to the performance of endogenous agonists. Since KOR is considered the cognate receptor for dynorphin peptides we have evaluated the selectivity profiles of dynorphin peptides in wild-type (WT), KOR knockout (KOR-KO), and mu opioid receptor knockout (MOR-KO) mice using [35S]GTPγS binding assay in striatal membrane preparations. We find that while the small molecule KOR agonist U69,593, is very selective for KOR, dynorphin peptides promiscuously stimulate G protein signaling in striatum. Furthermore, our studies demonstrate that norBNI and 5'GNTI are highly nonselective antagonists as they maintain full potency and efficacy against dynorphin signaling in the absence of KOR. Characterization of a new KOR antagonist, which may be more selective than NorBNI and 5'GNTI, is presented using this approach.
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Affiliation(s)
- Lei Zhou
- Department of Molecular Therapeutics, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458, USA; Department of Neuroscience, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458, USA
| | - Edward L Stahl
- Department of Molecular Therapeutics, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458, USA; Department of Neuroscience, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458, USA
| | - Kimberly M Lovell
- Department of Molecular Therapeutics, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458, USA; Department of Neuroscience, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458, USA
| | - Kevin J Frankowski
- Department of Medicinal Chemistry, University of Kansas, Lawrence, KS 66047, USA
| | - Thomas E Prisinzano
- Department of Medicinal Chemistry, University of Kansas, Lawrence, KS 66047, USA
| | - Jeffrey Aubé
- Department of Medicinal Chemistry, University of Kansas, Lawrence, KS 66047, USA
| | - Laura M Bohn
- Department of Molecular Therapeutics, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458, USA; Department of Neuroscience, The Scripps Research Institute, 130 Scripps Way, Jupiter, FL 33458, USA.
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11
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Gein SV. Dynorphins in regulation of immune system functions. BIOCHEMISTRY (MOSCOW) 2015; 79:397-405. [PMID: 24954590 DOI: 10.1134/s0006297914050034] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
Dynorphins constitute a family of opioid peptides manifesting the highest affinity for κ-opiate receptors. Immune system cells are known to express a κ-receptor similar to that in the central nervous system, and as a consequence dynorphins are involved in the interaction between cells of the nervous and immune systems. In this review, data on dynorphin structure are analyzed and generalized, the κ-opiate receptor is characterized, and data on the regulation by dynorphins of functioning of the innate and adaptive immunity cells are summarized.
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Affiliation(s)
- S V Gein
- Institute of Ecology and Genetics of Microorganisms, Ural Branch of the Russian Academy of Sciences, Perm, 614081, Russia.
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12
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Chen X, Wang T, Lin C, Chen B. Effect of adenoviral delivery of prodynorphin gene on experimental inflammatory pain induced by formalin in rats. Int J Clin Exp Med 2014; 7:4877-4886. [PMID: 25663984 PMCID: PMC4307431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 11/13/2014] [Indexed: 06/04/2023]
Abstract
Circumstantial evidences suggest that dynorphins and their common precursor prodynorphin (PDYN) are involved in antinociception and neuroendocrine signaling. DREAM knockout mice had increased levels of PDYN and dynorphin expression, and reduced sensitivity to painful stimuli. However, some data support the notion that the up-regulation of spinal dynorphin expression is a common critical feature in neuropathic pain. It is not clear whether the production of dynorphin A can be increased when more PDYN is present. In this study we investigated the changes in pain behaviors, spinal PDYN mRNA expression and dynorphin A production on formalin-induced pain in rats receiving the pretreatment of adenoviral delivery of PDYN. Our results showed that the adenoviral transfer of PDYN gene was sufficient to reduce pain behaviors resulting from formalin injection, and the antinociceptive effect after receiving the pretreatment of adenoviral delivery of PDYN was mediated at the level of the spinal cord via KOR.
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Affiliation(s)
- Xionggang Chen
- Department of Anesthesiology, The First Affiliated Hospital of Fujian Medical UniversityFuzhou 350005, P. R. China
| | - Tingting Wang
- Department of Ophthalmology, The First Affiliated Hospital of Fujian Medical UniversityFuzhou 350005, P. R. China
| | - Caizhu Lin
- Department of Anesthesiology, The First Affiliated Hospital of Fujian Medical UniversityFuzhou 350005, P. R. China
| | - Baihong Chen
- Department of Anesthesiology, The First Affiliated Hospital of Fujian Medical UniversityFuzhou 350005, P. R. China
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13
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Jalali-Yazdi F, Corbin JM, Takahashi TT, Roberts RW. Robust, quantitative analysis of proteins using peptide immunoreagents, in vitro translation, and an ultrasensitive acoustic resonant sensor. Anal Chem 2014; 86:4715-22. [PMID: 24749546 PMCID: PMC4030805 DOI: 10.1021/ac500084d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
Abstract
![]()
A major benefit of
proteomic and genomic data is the potential
for developing thousands of novel diagnostic and analytical tests
of cells, tissues, and clinical samples. Monoclonal antibody technologies,
phage display and mRNA display, are methods that could be used to
generate affinity ligands against each member of the proteome. Increasingly,
the challenge is not ligand generation, rather the analysis and affinity
rank-ordering of the many ligands generated by these methods. Here,
we developed a quantitative method to analyze protein interactions
using in vitro translated ligands. In this assay, in vitro translated
ligands generate a signal by simultaneously binding to a target immobilized
on a magnetic bead and to a sensor surface in a commercial acoustic
sensing device. We then normalize the binding of each ligand with
its relative translation efficiency in order to rank-order the different
ligands. We demonstrate the method with peptides directed against
the cancer marker Bcl-xL. Our method has 4- to 10-fold
higher sensitivity, using 100-fold less protein and 5-fold less antibody
per sample, as compared directly with ELISA. Additionally, all analysis
can be conducted in complex mixtures at physiological ionic strength.
Lastly, we demonstrate the ability to use peptides as ultrahigh affinity
reagents that function in complex matrices, as would be needed in
diagnostic applications.
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Affiliation(s)
- Farzad Jalali-Yazdi
- 3710 McClintock Avenue, RTH 507, Los Angeles, California 90089-2905, United States
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14
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Al-Hasani R, McCall JG, Bruchas MR. Exposure to chronic mild stress prevents kappa opioid-mediated reinstatement of cocaine and nicotine place preference. Front Pharmacol 2013; 4:96. [PMID: 23964239 PMCID: PMC3734353 DOI: 10.3389/fphar.2013.00096] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2013] [Accepted: 07/16/2013] [Indexed: 01/20/2023] Open
Abstract
Stress increases the risk of drug abuse, causes relapse to drug seeking, and potentiates the rewarding properties of both nicotine and cocaine. Understanding the mechanisms by which stress regulates the rewarding properties of drugs of abuse provides valuable insight into potential treatments for drug abuse. Prior reports have demonstrated that stress causes dynorphin release, activating kappa opioid receptors (KOR) in monoamine circuits resulting in both potentiation and reinstatement of cocaine and nicotine conditioned place preference. Here we report that kappa opioid-dependent reinstatement of cocaine and nicotine place preference is reduced when the mice are exposed to a randomized chronic mild stress (CMS) regime prior to training in a conditioned place preference-reinstatement paradigm. The CMS schedule involves seven different stressors (removal of nesting for 24 h, 5 min forced swim stress at 15°C, 8 h food and water deprivation, damp bedding overnight, white noise, cage tilt, and disrupted home cage lighting) rotated over a 3-week period. This response is KOR-selective, as CMS does not protect against cocaine or nicotine drug-primed reinstatement. This protection from reinstatement is also observed following sub-chronic social defeat stress, where each mouse is placed in an aggressor mouse home cage for a period of 20 min over 5 days. In contrast, a single acute stressor resulted in a potentiation of KOR-induced reinstatement, as previously reported. Prior studies have shown that stress alters sensitivity to opioids and prior stress can influence the pharmacodynamics of the opioid receptor system. Together, these findings suggest that exposure to different forms of stress may cause a dysregulation of kappa opioid circuitry and that changes resulting from mild stress can have protective and adaptive effects against drug relapse.
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Affiliation(s)
- Ream Al-Hasani
- Basic Research Division, Department of Anesthesiology, Washington University School of Medicine St. Louis, MO, USA ; Department of Anatomy and Neurobiology, Washington University School of Medicine St. Louis,MO, USA
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Trifilieff P, Martinez D. Kappa-opioid receptor signaling in the striatum as a potential modulator of dopamine transmission in cocaine dependence. Front Psychiatry 2013; 4:44. [PMID: 23760592 PMCID: PMC3669800 DOI: 10.3389/fpsyt.2013.00044] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/17/2013] [Accepted: 05/14/2013] [Indexed: 11/13/2022] Open
Abstract
Cocaine addiction is accompanied by a decrease in striatal dopamine signaling, measured as a decrease in dopamine D2 receptor binding as well as blunted dopamine release in the striatum. These alterations in dopamine transmission have clinical relevance, and have been shown to correlate with cocaine-seeking behavior and response to treatment for cocaine dependence. However, the mechanisms contributing to the hypodopaminergic state in cocaine addiction remain unknown. Here we review the positron emission tomography (PET) imaging studies showing alterations in D2 receptor binding potential and dopamine transmission in cocaine abusers and their significance in cocaine-seeking behavior. Based on animal and human studies, we propose that the kappa receptor/dynorphin system, because of its impact on dopamine transmission and upregulation following cocaine exposure, could contribute to the hypodopaminergic state reported in cocaine addiction, and could thus be a relevant target for treatment development.
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Affiliation(s)
- Pierre Trifilieff
- New York State Psychiatric Institute, Columbia University , New York, NY , USA ; NutriNeuro, UMR 1286 INRA, University Bordeaux 2 , Bordeaux , France
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Tejeda HA, Shippenberg TS, Henriksson R. The dynorphin/κ-opioid receptor system and its role in psychiatric disorders. Cell Mol Life Sci 2012; 69:857-96. [PMID: 22002579 PMCID: PMC11114766 DOI: 10.1007/s00018-011-0844-x] [Citation(s) in RCA: 115] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/23/2011] [Revised: 09/16/2011] [Accepted: 09/19/2011] [Indexed: 10/16/2022]
Abstract
The dynorphin/κ-opioid receptor system has been implicated in the pathogenesis and pathophysiology of several psychiatric disorders. In the present review, we present evidence indicating a key role for this system in modulating neurotransmission in brain circuits that subserve mood, motivation, and cognitive function. We overview the pharmacology, signaling, post-translational, post-transcriptional, transcriptional, epigenetic and cis regulation of the dynorphin/κ-opioid receptor system, and critically review functional neuroanatomical, neurochemical, and pharmacological evidence, suggesting that alterations in this system may contribute to affective disorders, drug addiction, and schizophrenia. We also overview the dynorphin/κ-opioid receptor system in the genetics of psychiatric disorders and discuss implications of the reviewed material for therapeutics development.
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Affiliation(s)
- H. A. Tejeda
- Integrative Neuroscience Section, Integrative Neuroscience Research Branch, NIDA-IRP, NIH, 333 Cassell Dr., Baltimore, MD 21224 USA
- Department of Anatomy and Neurobiology, University of Maryland, Baltimore, 20 Penn St., Baltimore, MD 21201 USA
| | - T. S. Shippenberg
- Integrative Neuroscience Section, Integrative Neuroscience Research Branch, NIDA-IRP, NIH, 333 Cassell Dr., Baltimore, MD 21224 USA
| | - R. Henriksson
- Integrative Neuroscience Section, Integrative Neuroscience Research Branch, NIDA-IRP, NIH, 333 Cassell Dr., Baltimore, MD 21224 USA
- Department of Clinical Neuroscience, Karolinska Institutet, CMM, L8:04, 17176 Stockholm, Sweden
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Gupta DS, Hubscher CH. Estradiol treatment prevents injury induced enhancement in spinal cord dynorphin expression. Front Physiol 2012; 3:28. [PMID: 22371702 PMCID: PMC3284198 DOI: 10.3389/fphys.2012.00028] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2011] [Accepted: 02/04/2012] [Indexed: 12/13/2022] Open
Abstract
Administration of the ovarian steroid estradiol in male and female animals has been shown to have neuromodulatory and neuroprotective effects in a variety of experimental models. In the present study, spinal tissues from dermatomes just above (T5–T7, at level) a severe chronic spinal cord injury (SCI) at T8 were analyzed for expression levels of prodynorphin (PRDN) and phospho-(serine 369) κ-opioid receptor (KOR-P) in 17 β estradiol (EB)- and placebo-treated adult male rats. Dynorphin was targeted since (1) it has previously been shown to be elevated post-SCI, (2) intrathecal injection of dynorphin produces several of the same adverse effects seen with a SCI, and (3) its increased expression is known to occur in a variety of different experimental models of central neuropathic pain. A significant elevation of extracellular levels of both PRDN and KOR-P in the placebo-treated SCI group relative to uninjured surgical sham controls was found in spinal tissues above the injury level, indicating increased dynorphin levels. Importantly, the EB-treated SCI group did not show elevations of PRDN levels at 6 weeks post-injury. Immunohistochemical analysis of at level tissues revealed that EB treatment significantly prevented a post-SCI increase in expression of PRDN puncta co-labeling synapsin I, a nerve terminal marker. The dynorphin-containing terminals co-labeled vesicular glutamate receptor-2 (a marker of glutamatergic terminals), a finding consistent with a non-opioid basis for the adverse effects of dynorphin. These results support a beneficial role for EB treatment post-SCI through a reduction in excessive spinal cord levels of dynorphin. Studies manipulating the timing of the EB treatment post-injury along with specific functional assessments will address whether the beneficial effects are due to EB’s potential neuromodulatory or neuroprotective action.
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Affiliation(s)
- Daya S Gupta
- Department of Anatomical Sciences and Neurobiology, University of Louisville Louisville, KY, USA
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Mu P, Panksepp J, Schlüter O, Dong Y, Dong Y. Exposure to cocaine alters dynorphin-mediated regulation of excitatory synaptic transmission in nucleus accumbens neurons. Biol Psychiatry 2011; 69:228-35. [PMID: 21030009 PMCID: PMC3790254 DOI: 10.1016/j.biopsych.2010.09.014] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2010] [Revised: 08/23/2010] [Accepted: 09/08/2010] [Indexed: 10/18/2022]
Abstract
BACKGROUND Dysregulation of excitatory synaptic input to nucleus accumbens (NAc) medium spiny neurons (MSNs) underlies a key pathophysiology of drug addiction and addiction-associated emotional and motivational alterations. Dynorphin peptides, which exhibit higher affinity to κ type opioid receptors, are upregulated within the NAc upon exposure to cocaine administration, and the increased dynorphin-signaling in the NAc has been critically implicated in negative mood observed in cocaine- or stress-exposed animals. Despite such apparent behavioral significance of the NAc dynorphins, the understanding of how dynorphins regulate excitatory synaptic transmission in the NAc remains incomplete. METHODS We used electrophysiological recording in brain slices to examine the effects of dynorphins on excitatory synaptic transmission in the NAc. RESULTS We focused on two key dynorphins, dynorphin A and B. Our current results show that dynorphin A and B differentially regulated excitatory postsynaptic currents (EPSCs) in NAc MSNs. Whereas perfusions of both dynorphin A and B to NAc slices decreased EPSCs in MSNs, the effect of dynorphin A but not dynorphin B was completely reversed by the κ receptor-selective antagonist nor-binaltorphimine. These results implicate κ receptor-independent mechanisms in dynorphin B-mediated synaptic effects in the NAc. Furthermore, repeated exposure to cocaine (15 mg/kg/day via intraperitoneal injection for 5 days, with 1, 2, or 14 days withdrawal) completely abolished dynorphin A-mediated modulation of EPSCs in NAc MSNs, whereas the effect of dynorphin B remained largely unchanged. CONCLUSIONS Given the quantitatively higher abundance of dynorphin B in the NAc, our present results suggest that the dynorphin B-mediated, κ receptor-independent pathways predominate in the overall effect of dynorphins in cocaine-pretreated animals and potentially in cocaine-induced alterations in mood.
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Affiliation(s)
- Ping Mu
- Program in Neuroscience, Washington State University, Pullman, WA 99164-6520
| | - Jaak Panksepp
- Program in Neuroscience, Washington State University, Pullman, WA 99164-6520
| | - Oliver Schlüter
- Department of Molecular Neurobiology, European Neuroscience Institute, Grisebachstr. 5, 37077 Göttingen, Germany
| | - Yan Dong
- Program in Neuroscience, Washington State University, Pullman, WA 99164-6520
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Smith FG, Qi W. Cardiorenal Effects of Kappa Opioid Peptides During Ontogeny. Pharmaceuticals (Basel) 2011. [PMCID: PMC4052547 DOI: 10.3390/ph4010154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
This review focuses on the physiological roles for kappa opioid receptors (KORs) in adult animals and humans, as well as in the developing newborn animal. Our recent findings have provided new information that under physiological conditions in conscious newborn animals, activation of KORs with the selective agonist, U-50488H, results in an aquaresis, as previously observed in adult animals and humans. In addition, we have shown in conscious lambs that KORs modulate systemic and renal haemodynamics as well as the arterial baroreflex control of heart rate, providing a previously unidentified role for KORs.
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The role of kappa-opioid receptor activation in mediating antinociception and addiction. Acta Pharmacol Sin 2010; 31:1065-70. [PMID: 20729876 DOI: 10.1038/aps.2010.138] [Citation(s) in RCA: 51] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
The kappa-opioid receptor (KOR), a member of the opioid receptor family, is widely expressed in the central nervous system and peripheral tissues. Substantial evidence has shown that activation of KOR by agonists and endogenous opioid peptides in vivo may produce a strong analgesic effect that is free from the abuse potential and the adverse side effects of mu-opioid receptor (MOR) agonists, such as morphine. In addition, activation of the KOR has also been shown to exert an inverse effect on morphine-induced adverse actions, such as tolerance, reward, and impairment of learning and memory. Therefore, the KOR has received much attention in the effort to develop alternative analgesics to MOR agonists and agents for the treatment of drug addiction. However, KOR agonists also produce several severe undesirable side effects such as dysphoria, water diuresis, salivation, emesis, and sedation in nonhuman primates, which may limit the clinical utility of KOR agonists for pain and drug abuse treatment. This article will review the role of KOR activation in mediating antinociception and addiction. The possible therapeutic application of kappa-agonists in the treatment of pain and drug addiction is also discussed.
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Bruchas MR, Chavkin C. Kinase cascades and ligand-directed signaling at the kappa opioid receptor. Psychopharmacology (Berl) 2010; 210:137-47. [PMID: 20401607 PMCID: PMC3671863 DOI: 10.1007/s00213-010-1806-y] [Citation(s) in RCA: 230] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2009] [Accepted: 02/15/2010] [Indexed: 12/27/2022]
Abstract
BACKGROUND AND RATIONALE The dynorphin/kappa opioid receptor (KOR) system has been implicated as a critical component of the stress response. Stress-induced activation of dynorphin-KOR is well known to produce analgesia, and more recently, it has been implicated as a mediator of stress-induced responses including anxiety, depression, and reinstatement of drug seeking. OBJECTIVE Drugs selectively targeting specific KOR signaling pathways may prove potentially useful as therapeutic treatments for mood and addiction disorders. RESULTS KOR is a member of the seven transmembrane spanning (7TM) G-protein coupled receptor (GPCR) superfamily. KOR activation of pertussis toxin-sensitive G proteins leads to Galphai/o inhibition of adenylyl cyclase production of cAMP and releases Gbetagamma, which modulates the conductances of Ca(+2) and K(+) channels. In addition, KOR agonists activate kinase cascades including G-protein coupled Receptor Kinases (GRK) and members of the mitogen-activated protein kinase (MAPK) family: ERK1/2, p38 and JNK. Recent pharmacological data suggests that GPCRs exist as dynamic, multi-conformational protein complexes that can be directed by specific ligands towards distinct signaling pathways. Ligand-induced conformations of KOR that evoke beta-arrestin-dependent p38 MAPK activation result in aversion; whereas ligand-induced conformations that activate JNK without activating arrestin produce long-lasting inactivation of KOR signaling. CONCLUSIONS In this review, we discuss the current status of KOR signal transduction research and the data that support two novel hypotheses: (1) KOR selective partial agonists that do not efficiently activate p38 MAPK may be useful analgesics without producing the dysphoric or hallucinogenic effects of selective, highly efficacious KOR agonists and (2) KOR antagonists that do not activate JNK may be effective short-acting drugs that may promote stress-resilience.
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Affiliation(s)
- Michael R Bruchas
- Department of Pharmacology, University of Washington, Seattle, WA 98195, USA
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Abstract
This paper is the thirtieth consecutive installment of the annual review of research concerning the endogenous opioid system. It summarizes papers published during 2007 that studied the behavioral effects of molecular, pharmacological and genetic manipulation of opioid peptides, opioid receptors, opioid agonists and opioid antagonists. The particular topics that continue to be covered include the molecular-biochemical effects and neurochemical localization studies of endogenous opioids and their receptors related to behavior, and the roles of these opioid peptides and receptors in pain and analgesia; stress and social status; tolerance and dependence; learning and memory; eating and drinking; alcohol and drugs of abuse; sexual activity and hormones, pregnancy, development and endocrinology; mental illness and mood; seizures and neurologic disorders; electrical-related activity and neurophysiology; general activity and locomotion; gastrointestinal, renal and hepatic functions; cardiovascular responses; respiration and thermoregulation; and immunological responses.
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Affiliation(s)
- Richard J Bodnar
- Department of Psychology and Neuropsychology Doctoral Sub-Program, Queens College, City University of New York, 65-30 Kissena Blvd.,Flushing, NY 11367, United States.
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