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Cayir S, Zhornitsky S, Barzegary A, Sotomayor-Carreño E, Sarfo-Ansah W, Funaro MC, Matuskey D, Angarita G. A review of the kappa opioid receptor system in opioid use. Neurosci Biobehav Rev 2024; 162:105713. [PMID: 38733895 DOI: 10.1016/j.neubiorev.2024.105713] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2024] [Revised: 04/23/2024] [Accepted: 05/03/2024] [Indexed: 05/13/2024]
Abstract
The kappa opioid receptor (KOR) system is implicated in dysphoria and as an "anti-reward system" during withdrawal from opioids. However, no clear consensus has been made in the field, as mixed findings have been reported regarding the relationship between the KOR system and opioid use. This review summarizes the studies to date on the KOR system and opioids. A systematic scoping review was reported following PRISMA guidelines and conducted based on the published protocol. Comprehensive searches of several databases were done in the following databases: MEDLINE, Embase, PsycINFO, Web of Science, Scopus, and Cochrane. We included preclinical and clinical studies that tested the administration of KOR agonists/antagonists or dynorphin and/or measured dynorphin levels or KOR expression during opioid intoxication or withdrawal from opioids. One hundred studies were included in the final analysis. Preclinical administration of KOR agonists decreased drug-seeking/taking behaviors and opioid withdrawal symptoms. KOR antagonists showed mixed findings, depending on the agent and/or type of withdrawal symptom. Administration of dynorphins attenuated opioid withdrawal symptoms both in preclinical and clinical studies. In the limited number of available studies, dynorphin levels were found to increase in cerebrospinal fluid (CSF) and peripheral blood lymphocytes (PBL) of opioid use disorder subjects (OUD). In animals, dynorphin levels and/or KOR expression showed mixed findings during opioid use. The KOR/dynorphin system appears to have a multifaceted and complex nature rather than simply functioning as an anti-reward system. Future research in well-controlled study settings is necessary to better understand the clinical role of the KOR system in opioid use.
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Affiliation(s)
- Salih Cayir
- Department of Radiology and Biomedical Imaging, Yale University, New Haven, CT 06510, USA
| | - Simon Zhornitsky
- Department of Psychology, Southern Connecticut State University, New Haven, CT 06515, USA
| | - Alireza Barzegary
- Islamic Azad University Tehran Medical Sciences School of Medicine, Iran
| | | | | | - Melissa C Funaro
- Harvey Cushing/John Hay Whitney Medical Library, Yale University, New Haven, CT 06510, USA
| | - David Matuskey
- Department of Radiology and Biomedical Imaging, Yale University, New Haven, CT 06510, USA; Department of Psychiatry, Yale University School of Medicine, 300 George Street, Suite 901, New Haven, CT 06511, USA; Department of Neurology, Yale University, New Haven, CT 06510, USA
| | - Gustavo Angarita
- Department of Psychiatry, Yale University School of Medicine, 300 George Street, Suite 901, New Haven, CT 06511, USA; Clinical Neuroscience Research Unit, Connecticut Mental Health Center, 34 Park Street, New Haven, CT 06519, USA.
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2
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Wallace CW, Holleran KM, Slinkard CY, Centanni SW, Jones SR. Kappa Opioid Receptors Negatively Regulate Real Time Spontaneous Dopamine Signals by Reducing Release and Increasing Uptake. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2024:2024.02.05.578840. [PMID: 38370660 PMCID: PMC10871279 DOI: 10.1101/2024.02.05.578840] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/20/2024]
Abstract
The role of the dynorphin/kappa opioid receptor (KOR) system in dopamine (DA) regulation has been extensively investigated. KOR activation reduces extracellular DA concentrations and increases DA transporter (DAT) activity and trafficking to the membrane. To explore KOR influences on real-time DA fluctuations, we used the photosensor dLight1.2 with fiber photometry in the nucleus accumbens (NAc) core of freely moving male and female C57BL/6 mice. First, we established that the rise and fall of spontaneous DA signals were due to DA release and reuptake, respectively. Then mice were systemically administered the KOR agonist U50,488H (U50), with or without pretreatment with the KOR antagonist aticaprant (ATIC). U50 reduced both the amplitude and width of spontaneous signals in males, but only reduced width in females. Further, the slope of the correlation between amplitude and width was increased in both sexes, suggesting that DA uptake rates were increased. U50 also reduced the frequency of signals in both males and females. All effects of KOR activation were stronger in males. Overall, KORs exerted significant inhibitory control over spontaneous DA signaling, acting through at least three mechanisms - inhibiting DA release, promoting DAT-mediated uptake, and reducing the frequency of signals.
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Affiliation(s)
- Conner W Wallace
- Department of Translational Neuroscience, Wake Forest University School of Medicine, Winston-Salem, NC
| | - Katherine M Holleran
- Department of Translational Neuroscience, Wake Forest University School of Medicine, Winston-Salem, NC
| | - Clare Y Slinkard
- Department of Translational Neuroscience, Wake Forest University School of Medicine, Winston-Salem, NC
| | - Samuel W Centanni
- Department of Translational Neuroscience, Wake Forest University School of Medicine, Winston-Salem, NC
| | - Sara R Jones
- Department of Translational Neuroscience, Wake Forest University School of Medicine, Winston-Salem, NC
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3
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Zhang J, Lu Y, Jia M, Bai Y, Sun L, Dong Z, Tian W, Yin F, Wei S, Wang Y. Kappa opioid receptor in nucleus accumbens regulates depressive-like behaviors following prolonged morphine withdrawal in mice. iScience 2023; 26:107536. [PMID: 37636073 PMCID: PMC10448166 DOI: 10.1016/j.isci.2023.107536] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/12/2023] [Accepted: 07/28/2023] [Indexed: 08/29/2023] Open
Abstract
Prolonged withdrawal from opioids leads to negative emotions. Kappa opioid receptor (KOR) plays an important role in opioid addiction and affective disorders. However, the underlying mechanism of KOR in withdrawal-related depression is still lacking. We found that escitalopram treatment had a limited effect in improving depression symptoms in heroin-dependent patients. In mice, we demonstrated prolonged (4 weeks) but not acute (24 h) withdrawal from morphine induced depressive-like behaviors. The number of c-Fos positive cells and the expression of KOR in the nucleus accumbens (NAc), were significantly increased in the prolonged morphine withdrawal mice. Conditional KOR knockdown in NAc significantly improved depressive-like behaviors. Repeated but not acute treatment with the KOR antagonist norBNI improved depressive-like behaviors and reversed PSD95, synaptophysin, p-ERK, p-CREB, and BDNF in NAc. This study demonstrated the important role of striatal KOR in morphine withdrawal-related depressive-like behaviors and offered therapeutic potential for the treatment of withdrawal-related depression.
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Affiliation(s)
- Jinyu Zhang
- Department of Psychiatry and Center for Brain Science, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
- College of Forensic Science, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
| | - Ye Lu
- College of Forensic Science, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
| | - Min Jia
- Department of Psychiatry and Center for Brain Science, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
- Shaanxi Belt and Road Joint Laboratory of Precision Medicine in Psychiatry, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
| | - Yuying Bai
- College of Forensic Science, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
| | - Lulu Sun
- College of Forensic Science, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
| | - Ziqing Dong
- Department of Psychiatry and Center for Brain Science, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
- Shaanxi Belt and Road Joint Laboratory of Precision Medicine in Psychiatry, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
| | - Wenrong Tian
- College of Forensic Science, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
| | - Fangyuan Yin
- College of Forensic Science, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
| | - Shuguang Wei
- College of Forensic Science, School of Medicine, Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
| | - Yunpeng Wang
- Department of Psychiatry and Center for Brain Science, The First Affiliated Hospital of Xi’an Jiaotong University, Xi’an, Shaanxi 710061, China
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Jiang Y, Zou M, Wang Y, Wang Y. Nucleus accumbens in the pathogenesis of major depressive disorder: A brief review. Brain Res Bull 2023; 196:68-75. [PMID: 36889362 DOI: 10.1016/j.brainresbull.2023.03.004] [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: 11/09/2022] [Revised: 02/16/2023] [Accepted: 03/05/2023] [Indexed: 03/08/2023]
Abstract
Major depressive disorder (MDD) is the most prevalent mental disorder characterized by anhedonia, loss of motivation, avolition, behavioral despair and cognitive abnormalities. Despite substantial advancements in the pathophysiology of MDD in recent years, the pathogenesis of this disorder is not fully understood. Meanwhile,the treatment of MDD with currently available antidepressants is inadequate, highlighting the urgent need for clarifying the pathophysiology of MDD and developing novel therapeutics. Extensive studies have demonstrated the involvement of nuclei such as the prefrontal cortex (PFC), hippocampus (HIP), nucleus accumbens (NAc), hypothalamus, etc., in MDD. NAc,a region critical for reward and motivation,dysregulation of its activity seems to be a hallmark of this mood disorder. In this paper, we present a review of NAc related circuits, cellular and molecular mechanisms underlying MDD and share an analysis of the gaps in current research and possible future research directions.
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Affiliation(s)
- Yajie Jiang
- Institute of Innovation and Applied Research in Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China; Hunan Key Laboratory of Traditional Chinese Medicine Prevention & Treatment of Depressive Diseases, Changsha, China
| | - Manshu Zou
- Hunan Key Laboratory of Traditional Chinese Medicine Prevention & Treatment of Depressive Diseases, Changsha, China
| | - Yeqing Wang
- State Key Laboratory of Developmental Biology of Freshwater Fish, Hunan Provincial Key Laboratory of Animal Intestinal Function and Regulation, Laboratory of Animal Nutrition and Human Health, College of Life Sciences, Hunan Normal University, Changsha 410081, China
| | - Yuhong Wang
- Institute of Innovation and Applied Research in Chinese Medicine, Hunan University of Chinese Medicine, Changsha, China; Hunan Key Laboratory of Traditional Chinese Medicine Prevention & Treatment of Depressive Diseases, Changsha, China.
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Chen Y, Wang CY, Zan GY, Yao SY, Deng YZ, Shu XL, Wu WW, Ma Y, Wang YJ, Yu CX, Liu JG. Upregulation of dynorphin/kappa opioid receptor system in the dorsal hippocampus contributes to morphine withdrawal-induced place aversion. Acta Pharmacol Sin 2023; 44:538-545. [PMID: 36127507 PMCID: PMC9958091 DOI: 10.1038/s41401-022-00987-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Accepted: 08/22/2022] [Indexed: 11/09/2022] Open
Abstract
Aversive emotion of opioid withdrawal generates motivational state leading to compulsive drug seeking and taking. Kappa opioid receptor (KOR) and its endogenous ligand dynorphin have been shown to participate in the regulation of aversive emotion. In the present study, we investigated the role of dynorphin/KOR system in the aversive emotion following opioid withdrawal in acute morphine-dependent mice. We found that blockade of KORs before pairing by intracerebroventricular injection of KOR antagonist norBNI (20, 40 μg) attenuated the development of morphine withdrawal-induced conditioned place aversion (CPA) behavior. We further found that morphine withdrawal increased dynorphin A expression in the dorsal hippocampus, but not in the amygdala, prefrontal cortex, nucleus accumbens, and thalamus. Microinjection of norBNI (20 μg) into the dorsal hippocampus significantly decreased morphine withdrawal-induced CPA behavior. We further found that p38 MAPK was significantly activated in the dorsal hippocampus after morphine withdrawal, and the activation of p38 MAPK was blocked by pretreatment with norBNI. Accordingly, microinjection of p38 MAPK inhibitor SB203580 (5 μg) into the dorsal hippocampus significantly decreased morphine withdrawal-produced CPA behavior. This study demonstrates that upregulation of dynorphin/KOR system in the dorsal hippocampus plays a critical role in the formation of aversive emotion associated with morphine withdrawal, suggesting that KOR antagonists may have therapeutic value for the treatment of opioid withdrawal-induced mood-related disorders.
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Affiliation(s)
- Yan Chen
- Department of Pharmacology, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China
| | - Chen-Yao Wang
- CAS Key Laboratory of Receptor Research and State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 555 Zuchongzhi Road, Shanghai, 201203, China
- University of Chinese Academy of Sciences, No. 19 A Yuquan Road, Beijing, 100049, China
| | - Gui-Ying Zan
- CAS Key Laboratory of Receptor Research and State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 555 Zuchongzhi Road, Shanghai, 201203, China
| | - Song-Yu Yao
- School of Chinese Materia Medica, Nanjing University of Chinese Medicine, Nanjing, 210023, China
| | - Ying-Zhi Deng
- CAS Key Laboratory of Receptor Research and State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 555 Zuchongzhi Road, Shanghai, 201203, China
| | - Xue-Lian Shu
- CAS Key Laboratory of Receptor Research and State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 555 Zuchongzhi Road, Shanghai, 201203, China
- University of Chinese Academy of Sciences, No. 19 A Yuquan Road, Beijing, 100049, China
| | - Wei-Wei Wu
- CAS Key Laboratory of Receptor Research and State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 555 Zuchongzhi Road, Shanghai, 201203, China
| | - Yan Ma
- CAS Key Laboratory of Receptor Research and State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 555 Zuchongzhi Road, Shanghai, 201203, China
| | - Yu-Jun Wang
- CAS Key Laboratory of Receptor Research and State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 555 Zuchongzhi Road, Shanghai, 201203, China.
| | - Chang-Xi Yu
- Department of Pharmacology, School of Pharmacy, Fujian Medical University, Fuzhou, 350122, China.
| | - Jing-Gen Liu
- CAS Key Laboratory of Receptor Research and State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Chinese Academy of Sciences, No. 555 Zuchongzhi Road, Shanghai, 201203, China
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6
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Ji J, Yan N, Zhang Z, Li B, Xue R, Dang Y. Characterized profiles of gut microbiota in morphine abstinence-induced depressive-like behavior. Neurosci Lett 2022; 788:136857. [PMID: 36038030 DOI: 10.1016/j.neulet.2022.136857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2022] [Revised: 08/20/2022] [Accepted: 08/22/2022] [Indexed: 10/15/2022]
Abstract
Morphine is the most widely used analgesic for pain management worldwide. Abstinence of morphine could lead to neuropsychiatric symptoms, including depression. Gut microbiota is believed to contribute to the development of depression. However, the characteristics and potential role of gut microbiota in morphine abstinence-induced depression remain unclear. In the present study, we first established morphine abstinence-induced depressive behavior in mice. After dividing the mice into depressive and non-depressive groups, the gut microbiota of the mice was detected by 16S rRNA gene sequencing. The difference in the diversities and abundance of the gut microbiota were analyzed between groups. Then, the representative microbial markers that could distinguish each group were identified. In addition, gene function prediction of the operational taxonomic units (OTUs) with differential abundance between the depressive and non-depressive groups after morphine abstinence was conducted. Our results suggested that four weeks of abstinence from morphine did not change the richness of the gut microbiota. However, morphine abstinence influenced the gut microbial composition. Several specific genera of gut microbiota were identified as markers for each group. Interestingly, gene function prediction found that the fatty acid metabolism pathway was enriched in the OUTs in the depressive group compared with the non-depressive group after morphine abstinence. Our data suggested that gut microbiota dysbiosis was associated with morphine abstinence-induced depressive behavior, possibly by implicating the fatty acid metabolism pathway.
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Affiliation(s)
- Jinshan Ji
- Xi'an Jiaotong University Health Science Center, Xi'an 710061, Shaanxi, China; Department of Preventive Medicine, Medical College of Yan'an University, Yan'an 716000, Shanxi, China
| | - Ni Yan
- Xi'an Jiaotong University Health Science Center, Xi'an 710061, Shaanxi, China; Department of Disease Control and Prevention, The Affiliated Ninth Hospital of Xi'an of Xi'an Jiaotong University, Xi'an 710054, Shaanxi, China
| | - Zhengxiang Zhang
- Department of Preventive Medicine, Medical College of Yan'an University, Yan'an 716000, Shanxi, China
| | - Baoli Li
- Department of Preventive Medicine, Medical College of Yan'an University, Yan'an 716000, Shanxi, China
| | - Ruiyang Xue
- Department of Preventive Medicine, Medical College of Yan'an University, Yan'an 716000, Shanxi, China
| | - Yonghui Dang
- Xi'an Jiaotong University Health Science Center, Xi'an 710061, Shaanxi, China.
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Abstract
The endogenous opioid peptide system, comprised of enkephalins, endorphins, dynorphins, and nociceptin, is a highly complex neurobiological system. Opioid peptides are derived from four precursor molecules and undergo several processing events yielding over 20 unique opioid peptides. This diversity together with low in vivo concentration and complex processing and release dynamics has challenged research into each peptide's unique function. Despite the subsequent challenges in detecting and quantifying opioid peptides in vivo, researchers have pioneered several techniques to directly or indirectly assay the roles of opioid peptides during behavioral manipulations. In this review, we describe the limitations of the traditional techniques used to study the role of endogenous opioid peptides in food and drug reward and bring focus to the wealth of new techniques to measure endogenous opioid peptides in reward processing.
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Abraham AD, Casello SM, Schattauer SS, Wong BA, Mizuno GO, Mahe K, Tian L, Land BB, Chavkin C. Release of endogenous dynorphin opioids in the prefrontal cortex disrupts cognition. Neuropsychopharmacology 2021; 46:2330-2339. [PMID: 34545197 PMCID: PMC8580977 DOI: 10.1038/s41386-021-01168-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 08/20/2021] [Accepted: 08/21/2021] [Indexed: 02/06/2023]
Abstract
Following repeated opioid use, some dependent individuals experience persistent cognitive deficits that contribute to relapse of drug-taking behaviors, and one component of this response may be mediated by the endogenous dynorphin/kappa opioid system in neocortex. In C57BL/6 male mice, we find that acute morphine withdrawal evokes dynorphin release in the medial prefrontal cortex (PFC) and disrupts cognitive function by activation of local kappa opioid receptors (KORs). Immunohistochemical analyses using a phospho-KOR antibody confirmed that both withdrawal-induced and optically evoked dynorphin release activated KOR in PFC. Using a genetically encoded sensor based on inert KOR (kLight1.2a), we revealed the in vivo dynamics of endogenous dynorphin release in the PFC. Local activation of KOR in PFC produced multi-phasic disruptions of memory processing in an operant-delayed alternation behavioral task, which manifest as reductions in response number and accuracy during early and late phases of an operant session. Local pretreatment in PFC with the selective KOR antagonist norbinaltorphimine (norBNI) blocked the disruptive effect of systemic KOR activation during both early and late phases of the session. The early, but not late phase disruption was blocked by viral excision of PFC KORs, suggesting an anatomically dissociable contribution of pre- and postsynaptic KORs. Naloxone-precipitated withdrawal in morphine-dependent mice or optical stimulation of pdynCre neurons using Channelrhodopsin-2 disrupted delayed alternation performance, and the dynorphin-induced effect was blocked by local norBNI. Our findings describe a mechanism for control of cortical function during opioid dependence and suggest that KOR antagonism could promote abstinence.
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Affiliation(s)
- Antony D. Abraham
- grid.34477.330000000122986657Center for Neurobiology of Addiction, Pain, and Emotion, University of Washington, Seattle, WA USA ,grid.34477.330000000122986657Department of Pharmacology, University of Washington, Seattle, WA USA
| | - Sanne M. Casello
- grid.34477.330000000122986657Department of Pharmacology, University of Washington, Seattle, WA USA
| | - Selena S. Schattauer
- grid.34477.330000000122986657Center for Neurobiology of Addiction, Pain, and Emotion, University of Washington, Seattle, WA USA ,grid.34477.330000000122986657Department of Pharmacology, University of Washington, Seattle, WA USA
| | - Brenden A. Wong
- grid.34477.330000000122986657Department of Bioengineering, University of Washington, Seattle, WA USA
| | - Grace O. Mizuno
- grid.27860.3b0000 0004 1936 9684Department of Biochemistry and Molecular Medicine, University of California, Davis, Davis, CA USA
| | - Karan Mahe
- grid.27860.3b0000 0004 1936 9684Department of Biochemistry and Molecular Medicine, University of California, Davis, Davis, CA USA
| | - Lin Tian
- grid.27860.3b0000 0004 1936 9684Department of Biochemistry and Molecular Medicine, University of California, Davis, Davis, CA USA
| | - Benjamin B. Land
- grid.34477.330000000122986657Center for Neurobiology of Addiction, Pain, and Emotion, University of Washington, Seattle, WA USA ,grid.34477.330000000122986657Department of Pharmacology, University of Washington, Seattle, WA USA
| | - Charles Chavkin
- Center for Neurobiology of Addiction, Pain, and Emotion, University of Washington, Seattle, WA, USA. .,Department of Pharmacology, University of Washington, Seattle, WA, USA.
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Paul AK, Smith CM, Rahmatullah M, Nissapatorn V, Wilairatana P, Spetea M, Gueven N, Dietis N. Opioid Analgesia and Opioid-Induced Adverse Effects: A Review. Pharmaceuticals (Basel) 2021; 14:1091. [PMID: 34832873 PMCID: PMC8620360 DOI: 10.3390/ph14111091] [Citation(s) in RCA: 70] [Impact Index Per Article: 23.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2021] [Revised: 10/26/2021] [Accepted: 10/26/2021] [Indexed: 01/08/2023] Open
Abstract
Opioids are widely used as therapeutic agents against moderate to severe acute and chronic pain. Still, these classes of analgesic drugs have many potential limitations as they induce analgesic tolerance, addiction and numerous behavioural adverse effects that often result in patient non-compliance. As opium and opioids have been traditionally used as painkillers, the exact mechanisms of their adverse reactions over repeated use are multifactorial and not fully understood. Older adults suffer from cancer and non-cancer chronic pain more than younger adults, due to the physiological changes related to ageing and their reduced metabolic capabilities and thus show an increased number of adverse reactions to opioid drugs. All clinically used opioids are μ-opioid receptor agonists, and the major adverse effects are directly or potentially connected to this receptor. Multifunctional opioid ligands or peripherally restricted opioids may elicit fewer adverse effects, as shown in preclinical studies, but these results need reproducibility from further extensive clinical trials. The current review aims to overview various mechanisms involved in the adverse effects induced by opioids, to provide a better understanding of the underlying pathophysiology and, ultimately, to help develop an effective therapeutic strategy to better manage pain.
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Affiliation(s)
- Alok K. Paul
- School of Pharmacy and Pharmacology, University of Tasmania, Hobart, TAS 7001, Australia;
| | - Craig M. Smith
- School of Medicine, Institute for Mental and Physical Health and Clinical Translation, Deakin University, Geelong, VIC 3216, Australia;
| | - Mohammed Rahmatullah
- Department of Biotechnology & Genetic Engineering, University of Development Alternative, Dhanmondi, Dhaka 1207, Bangladesh;
| | - Veeranoot Nissapatorn
- School of Allied Health Sciences, World Union for Herbal Drug Discovery (WUHeDD) and Research Excellence Center for Innovation and Health Products (RECIHP), Walailak University, Nakhon Si Thammarat 80160, Thailand;
| | - Polrat Wilairatana
- Department of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok 10400, Thailand
| | - Mariana Spetea
- Department of Pharmaceutical Chemistry, Institute of Pharmacy and Center for Molecular Biosciences (CMBI), University of Innsbruck, Innrain 80–82, 6020 Innsbruck, Austria;
| | - Nuri Gueven
- School of Pharmacy and Pharmacology, University of Tasmania, Hobart, TAS 7001, Australia;
| | - Nikolas Dietis
- Medical School, University of Cyprus, Nicosia 1678, Cyprus;
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10
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Blue light insertion at night is involved in sleep and arousal-promoting response delays and depressive-like emotion in mice. Biosci Rep 2021; 41:227923. [PMID: 33624794 PMCID: PMC7938454 DOI: 10.1042/bsr20204033] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 02/19/2021] [Accepted: 02/23/2021] [Indexed: 12/17/2022] Open
Abstract
Light plays a direct crucial role in the switch between sleep and arousal and the regulation of physiology and behaviour, such as circadian rhythms and emotional change. Artificial lights, which are different from natural light sources with a continuous light spectrum, are composed of three single-colour lights and are increasingly applied in modern society. However, in vivo research on the mechanisms of blue light-regulated sleep and arousal is still insufficient. In this work, we detected the effects of inserting white or blue light for 1 h during the dark period on the wheel-running activity and sucrose preference of C57 mice. The results showed that blue light could induce delays in sleep and arousal-promoting responses. Furthermore, this lighting pattern, including blue light alone, induced depressive-like emotions. The c-fos expression in the blue light group was significantly higher in the arcuate hypothalamic nucleus (Arc) and significantly lower in the cingulate cortex (Cg) and anterior part of the paraventricular thalamic nucleus (PVA) than in the white light group. Compared with the white light group, the phospho-ERK expression in the paraventricular hypothalamic nucleus (PVN) and PVA was lower in the blue light group. These molecular changes indicated that certain brain regions are involved in blue light-induced response processes. This study may provide useful information to explore the specific mechanism of special light-regulated physiological function.
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11
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Xu L, Nan J, Lan Y. The Nucleus Accumbens: A Common Target in the Comorbidity of Depression and Addiction. Front Neural Circuits 2020; 14:37. [PMID: 32694984 PMCID: PMC7338554 DOI: 10.3389/fncir.2020.00037] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Accepted: 05/22/2020] [Indexed: 12/21/2022] Open
Abstract
The comorbidity of depression and addiction has become a serious public health issue, and the relationship between these two disorders and their potential mechanisms has attracted extensive attention. Numerous studies have suggested that depression and addiction share common mechanisms and anatomical pathways. The nucleus accumbens (NAc) has long been considered a key brain region for regulating many behaviors, especially those related to depression and addiction. In this review article, we focus on the association between addiction and depression, highlighting the potential mediating role of the NAc in this comorbidity via the regulation of changes in the neural circuits and molecular signaling. To clarify the mechanisms underlying this association, we summarize evidence from overlapping reward neurocircuitry, the resemblance of cellular and molecular mechanisms, and common treatments. Understanding the interplay between these disorders should help guide clinical comorbidity prevention and the search for a new target for comorbidity treatment.
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Affiliation(s)
- Le Xu
- Department of Physiology and Pathophysiology, College of Medicine, Yanbian University School of Medicine, Yanji City, China
| | - Jun Nan
- Department of Orthopedics, Affiliated Hospital of Yanbian University, Yanji City, China
| | - Yan Lan
- Department of Physiology and Pathophysiology, College of Medicine, Yanbian University School of Medicine, Yanji City, China
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12
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Martins CC, Rosa SG, Recchi AMS, Nogueira CW, Zeni G. m-Trifluoromethyl-diphenyl diselenide (m-CF 3-PhSe) 2 modulates the hippocampal neurotoxic adaptations and abolishes a depressive-like phenotype in a short-term morphine withdrawal in mice. Prog Neuropsychopharmacol Biol Psychiatry 2020; 98:109803. [PMID: 31689445 DOI: 10.1016/j.pnpbp.2019.109803] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Revised: 10/17/2019] [Accepted: 10/31/2019] [Indexed: 12/21/2022]
Abstract
The opioid withdrawal syndrome is defined as a complex phenomenon involving multiple cellular adaptations, which leads to the emergence of aversive physical and affective signs. The m-trifluoromethyl-diphenyl diselenide (m-CF3-PhSe)2 elicits an antidepressant-like effect by modulating the opioid system in different animal models of mood disorders. Notably, repeated exposure to (m-CF3-PhSe)2 developed neither tolerance nor withdrawal signs in mice. The aim of the present study was to investigate whether (m-CF3-PhSe)2 attenuates the physical signs and the depressive-like phenotype during morphine withdrawal through its neuroprotective effects on oxidative stress, the NMDA receptor and the proBDNF/mBDNF signaling in the hippocampus of mice. Adult Swiss mice received saline solution or escalating doses (20-100 mg/kg, sc) of morphine for six days. For the next three days, the animals were treated with canola oil, (m-CF3-PhSe)2 (5 and 10 mg/kg, ig) or methadone (5 mg/kg, sc) whereas morphine injections were discontinued. On day 9, physical withdrawal signs and depressive-like behavior were assessed 30 min after the last administration of (m-CF3-PhSe)2. Although short-term treatment with (m-CF3-PhSe)2 at both doses suppressed the aversive physical and affective signs in morphine withdrawn-mice, the highest dose of (m-CF3-PhSe)2 per se increased the teeth chattering manifestation. The intrinsic antioxidant property of (m-CF3-PhSe)2 modulated oxidative stress, it also restored the NMDA receptor levels in the hippocampus of morphine withdrawn-mice. Besides, (m-CF3-PhSe)2 downregulated the proBDNF/p-75NTR/JNK pro-apoptotic pathway without affecting the mBDNF/TrkB/ERK/CREB pro-survival signaling in the hippocampus of morphine withdrawn-mice. The results show that (m-CF3-PhSe)2 treatment modulated the hippocampal neurotoxic adaptations and abolished the depressive-like phenotype following morphine withdrawal in mice.
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Affiliation(s)
- Carolina C Martins
- Laboratory of Synthesis, Reactivity, Pharmacological and Toxicological Evaluation of Organochalcogen Compounds, Department of Biochemistry and Molecular Biology, Center of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS 97105-900, Brazil
| | - Suzan G Rosa
- Laboratory of Synthesis, Reactivity, Pharmacological and Toxicological Evaluation of Organochalcogen Compounds, Department of Biochemistry and Molecular Biology, Center of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS 97105-900, Brazil
| | - Ana M S Recchi
- Laboratory of Synthesis, Reactivity, Pharmacological and Toxicological Evaluation of Organochalcogen Compounds, Department of Biochemistry and Molecular Biology, Center of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS 97105-900, Brazil
| | - Cristina W Nogueira
- Laboratory of Synthesis, Reactivity, Pharmacological and Toxicological Evaluation of Organochalcogen Compounds, Department of Biochemistry and Molecular Biology, Center of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS 97105-900, Brazil
| | - Gilson Zeni
- Laboratory of Synthesis, Reactivity, Pharmacological and Toxicological Evaluation of Organochalcogen Compounds, Department of Biochemistry and Molecular Biology, Center of Natural and Exact Sciences, Federal University of Santa Maria, Santa Maria, RS 97105-900, Brazil.
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Yuanyuan J, Junyan Z, Cuola D, Jingjing C, Yuhui S, Dan X, Wei D, Yongsheng Z. Memantine attenuated alcohol withdrawal-induced anxiety-like behaviors through down-regulating NR1-CaMKII-ERK signaling pathway. Neurosci Lett 2018; 686:133-139. [PMID: 30213620 DOI: 10.1016/j.neulet.2018.09.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Revised: 09/01/2018] [Accepted: 09/04/2018] [Indexed: 11/19/2022]
Abstract
Alcohol abuse and anxiety disorders often occur concurrently, but their underlying cellular mechanisms remain unclear. N-methyl-D-aspartic acid receptors (NMDARs) have recently received attention from those interested in the neurobiology of anxiety. A chronic alcohol exposure rat model (28 consecutive days of 20% alcohol intake and 6 h of withdrawal) was established. Here, we investigated the NMDAR1 (NR1), Ca2+/calmodulin-dependent protein kinase II (CaMKII) and extracellular signal-regulated kinases (ERK) pathway in the modulation of anxiety-like behaviors in rats exposed to an open field and elevated plus maze (EPM) through systematic injections of memantine (a NMDAR inhibitor). We found that the NR1-CaMKII-ERK signaling pathway was activated after alcohol withdrawal in medial prefrontal cortex (mPFC) and nucleus accumbens shell (NAcSh) but not core (NAcC). Memantine treatment greatly ameliorated anxiety-like behavior in the rats experiencing alcohol withdrawal. Moreover, memantine uniformly suppressed the phosphorylation of NR1-CaMKII-ERK pathway induced by alcohol withdrawal. Our results suggest that activation of the NR1-CaMKII-ERK pathway in the mPFC and NAcSh is an important contributor to the molecular mechanisms underlying alcohol withdrawal-induced anxiety behaviors. NMDAR signaling pathway inhibitors are thus potential therapeutics for treating alcohol abuse.
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Affiliation(s)
- Ji Yuanyuan
- College of Forensic Science, School of Medicine, Xi'an Jiaotong University, No. 76, Yanta West Road, Xi'an, Shaanxi 710061, China
| | - Zhu Junyan
- Xi'an Mental Health Center, Xi'an, Shannxi, China
| | - DeJi Cuola
- College of Forensic Science, School of Medicine, Xi'an Jiaotong University, No. 76, Yanta West Road, Xi'an, Shaanxi 710061, China
| | - Cui Jingjing
- College of Forensic Science, School of Medicine, Xi'an Jiaotong University, No. 76, Yanta West Road, Xi'an, Shaanxi 710061, China
| | - Shi Yuhui
- College of Forensic Science, School of Medicine, Xi'an Jiaotong University, No. 76, Yanta West Road, Xi'an, Shaanxi 710061, China
| | - Xu Dan
- College of Forensic Science, School of Medicine, Xi'an Jiaotong University, No. 76, Yanta West Road, Xi'an, Shaanxi 710061, China
| | - Dang Wei
- College of Forensic Science, School of Medicine, Xi'an Jiaotong University, No. 76, Yanta West Road, Xi'an, Shaanxi 710061, China; Xi'an Mental Health Center, Xi'an, Shannxi, China; Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an, Shaanxi 710061, China
| | - Zhu Yongsheng
- College of Forensic Science, School of Medicine, Xi'an Jiaotong University, No. 76, Yanta West Road, Xi'an, Shaanxi 710061, China; Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an, Shaanxi 710061, China.
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McHugh KL, Kelly JP. Modulation of the central opioid system as an antidepressant target in rodent models. PROGRESS IN BRAIN RESEARCH 2018; 239:49-87. [DOI: 10.1016/bs.pbr.2018.07.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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15
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Lalanne L, Ayranci G, Filliol D, Gavériaux-Ruff C, Befort K, Kieffer BL, Lutz PE. Kappa opioid receptor antagonism and chronic antidepressant treatment have beneficial activities on social interactions and grooming deficits during heroin abstinence. Addict Biol 2017; 22:1010-1021. [PMID: 27001273 PMCID: PMC5590636 DOI: 10.1111/adb.12392] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 01/14/2016] [Accepted: 02/18/2016] [Indexed: 01/11/2023]
Abstract
Addiction is a chronic brain disorder that progressively invades all aspects of personal life. Accordingly, addiction to opiates severely impairs interpersonal relationships, and the resulting social isolation strongly contributes to the severity and chronicity of the disease. Uncovering new therapeutic strategies that address this aspect of addiction is therefore of great clinical relevance. We recently established a mouse model of heroin addiction in which, following chronic heroin exposure, 'abstinent' mice progressively develop a strong and long-lasting social avoidance phenotype. Here, we explored and compared the efficacy of two pharmacological interventions in this mouse model. Because clinical studies indicate some efficacy of antidepressants on emotional dysfunction associated with addiction, we first used a chronic 4-week treatment with the serotonergic antidepressant fluoxetine, as a reference. In addition, considering prodepressant effects recently associated with kappa opioid receptor signaling, we also investigated the kappa opioid receptor antagonist norbinaltorphimine (norBNI). Finally, we assessed whether fluoxetine and norBNI could reverse abstinence-induced social avoidance after it has established. Altogether, our results show that two interspaced norBNI administrations are sufficient both to prevent and to reverse social impairment in heroin abstinent animals. Therefore, kappa opioid receptor antagonism may represent a useful approach to alleviate social dysfunction in addicted individuals.
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Affiliation(s)
- L Lalanne
- Translational Medicine and Neurogenetics Department, Institut de Génétique et de Biologie Moléculaire et Cellulaire, INSERM U 964, CNRS UMR 7104, Université de Strasbourg, France
- Département de Psychiatrie I, Hôpital Civil, Centre Hospitalier Régional Universitaire de Strasbourg, France
| | - G Ayranci
- Translational Medicine and Neurogenetics Department, Institut de Génétique et de Biologie Moléculaire et Cellulaire, INSERM U 964, CNRS UMR 7104, Université de Strasbourg, France
- Douglas Institute Research Centre, McGill University, Canada
| | - D Filliol
- Translational Medicine and Neurogenetics Department, Institut de Génétique et de Biologie Moléculaire et Cellulaire, INSERM U 964, CNRS UMR 7104, Université de Strasbourg, France
- Laboratoire de Neurosciences Cognitives et Adaptatives, UMR 7364, Université de Strasbourg, CNRS, Faculté de Psychologie, Neuropôle de Strasbourg, France
| | - C Gavériaux-Ruff
- Translational Medicine and Neurogenetics Department, Institut de Génétique et de Biologie Moléculaire et Cellulaire, INSERM U 964, CNRS UMR 7104, Université de Strasbourg, France
| | - K Befort
- Translational Medicine and Neurogenetics Department, Institut de Génétique et de Biologie Moléculaire et Cellulaire, INSERM U 964, CNRS UMR 7104, Université de Strasbourg, France
- Laboratoire de Neurosciences Cognitives et Adaptatives, UMR 7364, Université de Strasbourg, CNRS, Faculté de Psychologie, Neuropôle de Strasbourg, France
| | - B L Kieffer
- Translational Medicine and Neurogenetics Department, Institut de Génétique et de Biologie Moléculaire et Cellulaire, INSERM U 964, CNRS UMR 7104, Université de Strasbourg, France
- Douglas Institute Research Centre, McGill University, Canada
| | - P-E Lutz
- Translational Medicine and Neurogenetics Department, Institut de Génétique et de Biologie Moléculaire et Cellulaire, INSERM U 964, CNRS UMR 7104, Université de Strasbourg, France
- McGill Group for Suicide Studies, Douglas Institute Research Centre, McGill University, Canada
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Turner CA, Flagel SB, Blandino P, Watson SJ, Akil H. Utilizing a unique animal model to better understand human temperament. Curr Opin Behav Sci 2017; 14:108-114. [PMID: 28966969 DOI: 10.1016/j.cobeha.2017.02.002] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Individual differences in temperament are associated with psychopathology in humans. Moreover, the relationship between temperament and anxiety-, depression-, PTSD- and addiction-related behaviors can be modeled in animals. This review will highlight these relationships with a focus on individual differences in the response to stressors, fear conditioning and drugs of abuse using animals that differ in their response to a novel environment. We will discuss behavioral and neurobiological commonalities amongst these behaviors with a focus on the hippocampus and, in particular, growth factors as promising novel targets for therapeutic intervention.
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Affiliation(s)
- Cortney A Turner
- Molecular and Behavioral Neuroscience Institute, University of Michigan, Ann Arbor, MI. 48109
| | - Shelly B Flagel
- Molecular and Behavioral Neuroscience Institute, University of Michigan, Ann Arbor, MI. 48109
- Department of Psychiatry, University of Michigan, Ann Arbor, MI. 48109
| | - Peter Blandino
- Molecular and Behavioral Neuroscience Institute, University of Michigan, Ann Arbor, MI. 48109
| | - Stanley J Watson
- Molecular and Behavioral Neuroscience Institute, University of Michigan, Ann Arbor, MI. 48109
- Department of Psychiatry, University of Michigan, Ann Arbor, MI. 48109
| | - Huda Akil
- Molecular and Behavioral Neuroscience Institute, University of Michigan, Ann Arbor, MI. 48109
- Department of Psychiatry, University of Michigan, Ann Arbor, MI. 48109
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Abstract
This paper is the thirty-eighth consecutive installment of the annual review of research concerning the endogenous opioid system. It summarizes papers published during 2015 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, drug abuse and alcohol, 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, Flushing, NY 11367, United States.
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Abstract
INTRODUCTION Treatment of patients suffering from major depression could be highly challenging for psychiatrists. Intractability as well as relapse is commonly seen among these patients, leading to functional impairment and poor quality of life. The present review discusses some of the novel investigational drugs that are under pre-clinical or clinical phases in the treatment of major depression. Areas covered: Molecules belonging to different classes such as triple reuptake inhibitors, opioid receptors, ionotropic and metabotropic glutamate receptors, and neurotrophin in the treatment of major depression are covered in this article. Expert opinion: Although the historical discovery of earlier antidepressant molecules (iproniazid and imipramine) is through serendipitous discovery, the present research focuses on discovering novel molecules based on our current pathophysiological knowledge of the disease condition. The fast-acting antidepressant property of N-methyl-d-aspartate (NMDA) receptor molecules, including ketamine is an exciting area of research. Other drug molecules such as amitifadine (triple reuptake inhibitor), ALKS-5461 (kappa receptor antagonist and mu opioidergic receptor agonist), rapastinel (NMDA glutamatergic receptor modulator) are under Phase-III clinical trials and could be approved in the near future for the treatment of major depression.
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Affiliation(s)
- Ashish Dhir
- a Department of Neurology, School of Medicine , University of California Davis , Sacramento , CA , USA
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Wang Q, Long Y, Hang A, Zan GY, Shu XH, Wang YJ, Liu JG. The anxiolytic- and antidepressant-like effects of ATPM-ET, a novel κ agonist and μ partial agonist, in mice. Psychopharmacology (Berl) 2016; 233:2411-8. [PMID: 27113225 DOI: 10.1007/s00213-016-4292-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/24/2015] [Accepted: 04/01/2016] [Indexed: 01/21/2023]
Abstract
RATIONALE Opioid receptors are implicated in the regulation of motivation and emotion. However, animal studies show that activation of κ opioid receptor produces contrasting mood-altering effects in models of anxiety-like and depressive-like behaviors, and consequently, the role of κ receptor in mood control remains unsettled. The effect of κ/μ opioid combination in emotion regulation was unexplored. OBJECTIVES The aim of the study was to investigate the effects of (-)-3-N-ethylaminothiazolo [5,4-b]-N-cyclopropylmethylmorphinan hydrochloride (ATPM-ET), a novel κ agonist and μ partial agonist, in regulating emotional responses. METHODS The emotional responses of ATPM-ET were detected in the elevated plus maze (EPM), open field test (OFT), forced swim test (FST), and tail suspension test (TST). Selective κ antagonist nor-binaltorphimine (nor-BNI) and μ antagonist β-funaltrexamine (β-FNA) were applied to determine the type of receptor involved. The conditioned place aversion model was used to evaluate the effects on aversive emotion. RESULTS In the EPM and OFT, ATPM-ET (1 and 2 mg/kg, s.c.) significantly increased the time spent in the open arm and in the central area, respectively. In the FST and TST, ATPM-ET (0.5 and 1 mg/kg, s.c.) significantly reduced the duration of immobility. These effects were prevented by nor-BNI (10 mg/kg, i.p., -24 h), but not by β-FNA (10 and20 mg/kg, i.p., -24 h) pretreatment. At the dose of 2 mg/kg, ATPM-ET did not induce conditioned place aversion. CONCLUSIONS ATPM-ET, at doses from 0.5 to 2 mg/kg, produced anxiolytic- and antidepressant-like effects without inducing aversive emotion. These effects were more closely mediated by activation of κ receptor than μ receptor.
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Affiliation(s)
- Qian Wang
- College of Pharmacy, Dalian Medical University, Dalian, 116044, China
| | - Yu Long
- College of Pharmacy, Dalian Medical University, Dalian, 116044, China
| | - Ai Hang
- Pharmacology and Toxicology Department, Shanghai Institute for Food and Drug Control, Shanghai, 201203, China
| | - Gui-Ying Zan
- Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica and Collaborative Innovation Center for Brain Science, Chinese Academy of Sciences, Shanghai, 201203, China
| | - Xiao-Hong Shu
- College of Pharmacy, Dalian Medical University, Dalian, 116044, China.
| | - Yu-Jun Wang
- Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica and Collaborative Innovation Center for Brain Science, Chinese Academy of Sciences, Shanghai, 201203, China.
| | - Jing-Gen Liu
- Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica and Collaborative Innovation Center for Brain Science, Chinese Academy of Sciences, Shanghai, 201203, China
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Wang YJ, Hang A, Lu YC, Long Y, Zan GY, Li XP, Wang Q, Zhao ZX, He L, Chi ZQ, Liu JG. κ Opioid receptor activation in different brain regions differentially modulates anxiety-related behaviors in mice. Neuropharmacology 2016; 110:92-101. [PMID: 27106167 DOI: 10.1016/j.neuropharm.2016.04.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2015] [Revised: 04/15/2016] [Accepted: 04/17/2016] [Indexed: 12/31/2022]
Abstract
κ Opioid receptor system is widely implicated in the regulation of emotion. However, the findings about the role on anxiety in rodents are highly controversial, since both anxiogenic- and anxiolytic-like effects have been reported with κ opioid receptor activation. The mechanism and the underlying neuroanatomical substrates are unexplored. In the present study, we first investigated the effects of κ agonist U50,488H on anxiety-related behaviors over a wide range of doses, and we found that U50,488H produced dual effects in anxiety, with low dose being anxiogenic and high dose being anxiolytic. To assess the potential neuroanatomical substrates, we used phosphorylation of extracellular signal-related kinase1/2 (pERK1/2) to map the underlying neural circuits. We found that the anxiogenic effect of U50,488H was paralleled by an increase of pERK1/2 in the nucleus accumbens, whereas the anxiolytic effect was paralleled by an increase of pERK1/2 in the lateral septal nucleus. We then examined the behavioral consequences with locally microinjection of U50,488H, and we found that microinjection of U50,488H into the nucleus accumbens exerted anxiogenic-like effects, whereas microinjection of U50,488H into the lateral septal nucleus. Both effects can be abolished by κ antagonist nor-BNI pretreatment. To the best of our knowledge, the present work firstly provides the neuroanatomical sites that mediating the dual anxiogenic- and anxiolytic-like effects of U50,488H in mice. This study may help to explain current controversial role of κ receptor activation in anxiety-related behaviors in rodents, and may open new perspectives in the areas of anxiety disorders and κ receptor function.
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Affiliation(s)
- Yu-Jun Wang
- Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica and Collaborative Innovation Center for Brain Science, Chinese Academy of Science, Shanghai 201203, China
| | - Ai Hang
- Pharmacology and Toxicology Department, Shanghai Institute for Food and Drug Control, Shanghai 201203, China; Department of Pharmacology, China Pharmaceutical University, Nanjing 210009, China
| | - Yu-Chen Lu
- Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica and Collaborative Innovation Center for Brain Science, Chinese Academy of Science, Shanghai 201203, China
| | - Yu Long
- Department of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Gui-Ying Zan
- Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica and Collaborative Innovation Center for Brain Science, Chinese Academy of Science, Shanghai 201203, China
| | - Xue-Ping Li
- Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica and Collaborative Innovation Center for Brain Science, Chinese Academy of Science, Shanghai 201203, China
| | - Qian Wang
- Department of Pharmacy, Dalian Medical University, Dalian 116044, China
| | - Zeng-Xiang Zhao
- Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica and Collaborative Innovation Center for Brain Science, Chinese Academy of Science, Shanghai 201203, China
| | - Ling He
- Department of Pharmacology, China Pharmaceutical University, Nanjing 210009, China
| | - Zhi-Qiang Chi
- Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica and Collaborative Innovation Center for Brain Science, Chinese Academy of Science, Shanghai 201203, China
| | - Jing-Gen Liu
- Key Laboratory of Receptor Research, Shanghai Institute of Materia Medica and Collaborative Innovation Center for Brain Science, Chinese Academy of Science, Shanghai 201203, China.
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p38 mitogen-activated protein kinase activation in amygdala mediates κ opioid receptor agonist U50,488H-induced conditioned place aversion. Neuroscience 2016; 320:122-8. [DOI: 10.1016/j.neuroscience.2016.01.052] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2015] [Revised: 01/01/2016] [Accepted: 01/22/2016] [Indexed: 12/27/2022]
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