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Quezada M, Ponce C, Berríos‐Cárcamo P, Santapau D, Gallardo J, De Gregorio C, Quintanilla ME, Morales P, Ezquer M, Herrera‐Marschitz M, Israel Y, Andrés‐Herrera P, Hipólito L, Ezquer F. Amelioration of morphine withdrawal syndrome by systemic and intranasal administration of mesenchymal stem cell-derived secretome in preclinical models of morphine dependence. CNS Neurosci Ther 2024; 30:e14517. [PMID: 37927136 PMCID: PMC11017443 DOI: 10.1111/cns.14517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 09/21/2023] [Accepted: 10/12/2023] [Indexed: 11/07/2023] Open
Abstract
BACKGROUND Morphine is an opiate commonly used in the treatment of moderate to severe pain. However, prolonged administration can lead to physical dependence and strong withdrawal symptoms upon cessation of morphine use. These symptoms can include anxiety, irritability, increased heart rate, and muscle cramps, which strongly promote morphine use relapse. The morphine-induced increases in neuroinflammation, brain oxidative stress, and alteration of glutamate levels in the hippocampus and nucleus accumbens have been associated with morphine dependence and a higher severity of withdrawal symptoms. Due to its rich content in potent anti-inflammatory and antioxidant factors, secretome derived from human mesenchymal stem cells (hMSCs) is proposed as a preclinical therapeutic tool for the treatment of this complex neurological condition associated with neuroinflammation and brain oxidative stress. METHODS Two animal models of morphine dependence were used to evaluate the therapeutic efficacy of hMSC-derived secretome in reducing morphine withdrawal signs. In the first model, rats were implanted subcutaneously with mini-pumps which released morphine at a concentration of 10 mg/kg/day for seven days. Three days after pump implantation, animals were treated with a simultaneous intravenous and intranasal administration of hMSC-derived secretome or vehicle, and withdrawal signs were precipitated on day seven by i.p. naloxone administration. In this model, brain alterations associated with withdrawal were also analyzed before withdrawal precipitation. In the second animal model, rats voluntarily consuming morphine for three weeks were intravenously and intranasally treated with hMSC-derived secretome or vehicle, and withdrawal signs were induced by morphine deprivation. RESULTS In both animal models secretome administration induced a significant reduction of withdrawal signs, as shown by a reduction in a combined withdrawal score. Secretome administration also promoted a reduction in morphine-induced neuroinflammation in the hippocampus and nucleus accumbens, while no changes were observed in extracellular glutamate levels in the nucleus accumbens. CONCLUSION Data presented from two animal models of morphine dependence suggest that administration of secretome derived from hMSCs reduces the development of opioid withdrawal signs, which correlates with a reduction in neuroinflammation in the hippocampus and nucleus accumbens.
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Affiliation(s)
- Mauricio Quezada
- Center for Regenerative Medicine, Faculty of MedicineClínica Alemana‐Universidad del DesarrolloSantiagoChile
| | - Carolina Ponce
- Department of Neuroscience, Faculty of MedicineUniversidad de ChileSantiagoChile
| | - Pablo Berríos‐Cárcamo
- Center for Regenerative Medicine, Faculty of MedicineClínica Alemana‐Universidad del DesarrolloSantiagoChile
| | - Daniela Santapau
- Center for Regenerative Medicine, Faculty of MedicineClínica Alemana‐Universidad del DesarrolloSantiagoChile
| | - Javiera Gallardo
- Center for Regenerative Medicine, Faculty of MedicineClínica Alemana‐Universidad del DesarrolloSantiagoChile
| | - Cristian De Gregorio
- Center for Regenerative Medicine, Faculty of MedicineClínica Alemana‐Universidad del DesarrolloSantiagoChile
| | - María Elena Quintanilla
- Molecular and Clinical Pharmacology Program, Institute of Biomedical Science, Faculty of MedicineUniversidad de ChileSantiagoChile
| | - Paola Morales
- Department of Neuroscience, Faculty of MedicineUniversidad de ChileSantiagoChile
- Molecular and Clinical Pharmacology Program, Institute of Biomedical Science, Faculty of MedicineUniversidad de ChileSantiagoChile
| | - Marcelo Ezquer
- Center for Regenerative Medicine, Faculty of MedicineClínica Alemana‐Universidad del DesarrolloSantiagoChile
| | - Mario Herrera‐Marschitz
- Department of Neuroscience, Faculty of MedicineUniversidad de ChileSantiagoChile
- Molecular and Clinical Pharmacology Program, Institute of Biomedical Science, Faculty of MedicineUniversidad de ChileSantiagoChile
| | - Yedy Israel
- Molecular and Clinical Pharmacology Program, Institute of Biomedical Science, Faculty of MedicineUniversidad de ChileSantiagoChile
| | - Paula Andrés‐Herrera
- Department of Pharmacy and Pharmaceutical Technology and ParasitologyUniversity of ValenciaValenciaSpain
- University Institute of Biotechnology and Biomedicine (BIOTECMED)University of ValenciaValenciaSpain
| | - Lucia Hipólito
- Department of Pharmacy and Pharmaceutical Technology and ParasitologyUniversity of ValenciaValenciaSpain
- University Institute of Biotechnology and Biomedicine (BIOTECMED)University of ValenciaValenciaSpain
| | - Fernando Ezquer
- Center for Regenerative Medicine, Faculty of MedicineClínica Alemana‐Universidad del DesarrolloSantiagoChile
- Research Center for the Development of Novel Therapeutic Alternatives for Alcohol Use DisordersSantiagoChile
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Mirmohammadi M, Eskandari K, Koruji M, Shabani R, Ahadi R, Haghparast A. Intra-Accumbal D1- But not D2-Like Dopamine Receptor Antagonism Reverses the Inhibitory Effects of Cannabidiol on Extinction and Reinstatement of Methamphetamine Seeking Behavior in Rats. Cannabis Cannabinoid Res 2024; 9:89-110. [PMID: 36048545 DOI: 10.1089/can.2022.0017] [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] [Indexed: 11/13/2022] Open
Abstract
Introduction: Methamphetamine (METH) is an addictive psychostimulant that facilitates dopamine transmission to the nucleus accumbens (NAc), resulting in alterations in the mesocorticolimbic brain regions. Cannabidiol (CBD) is considered the second most abundant component of cannabis and is believed to decrease the METH effects. Reversing psychostimulant-induced abnormalities in the mesolimbic dopamine system is the main mechanism for this effect. Various other mechanisms have been proposed: increasing endocannabinoid system activity and modulating gamma-aminobutyric acid (GABA) and glutamate neurons in NAc. However, the exact CBD action mechanisms in reducing drug addiction and relapse vulnerability remain unclear. Methods and Results: The present study aimed to investigate the effects of intracerebroventricular (ICV) administrating 5, 10, and 50 μg/5 μL CBD solutions on the extinction period and reinstatement phase of a METH-induced conditioned place preference. This research also aimed to examine the NAc D1-like dopamine receptor (D1R) and D2-like dopamine receptor (D2R) roles in the effects of CBD on these phases, as mentioned earlier, using SCH23390 and sulpiride microinjections as an antagonist of D1R and D2R. The obtained results showed that microinjection of CBD (10 and 50 μg/5 μL, ICV) suppressed the METH-induced reinstatement and significantly decreased mean extinction latency in treated groups compared to both vehicles and/or untreated control groups. In addition, the results demonstrated that administrating intra-accumbal SCH23390 (1 and 4 μg/0.5 μL saline) reversed the inhibitory effects of CBD on extinction and reinstatement phases while different doses of sulpiride (0.25, 1, and 4 μg/0.5 μL; dimethyl sulfoxide 12%) could not alter the CBD effects. Conclusions: In summary, this study showed that CBD made shorter extinction latencies and suppressed the METH reinstatement, in part, by interacting with D1R but not D2R in the NAc.
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Affiliation(s)
- Mahboobeh Mirmohammadi
- Department of Anatomy, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Kiarash Eskandari
- Neuroscience Research Center, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Morteza Koruji
- Department of Anatomy, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Ronak Shabani
- Department of Anatomy, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Reza Ahadi
- Department of Anatomy, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Abbas Haghparast
- Neuroscience Research Center, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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3
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Kupnicka P, Listos J, Tarnowski M, Kolasa A, Kapczuk P, Surówka A, Kwiatkowski J, Janawa K, Chlubek D, Baranowska-Bosiacka I. The Effect of Prenatal and Neonatal Fluoride Exposure to Morphine-Induced Neuroinflammation. Int J Mol Sci 2024; 25:826. [PMID: 38255899 PMCID: PMC10815549 DOI: 10.3390/ijms25020826] [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: 12/03/2023] [Revised: 01/01/2024] [Accepted: 01/05/2024] [Indexed: 01/24/2024] Open
Abstract
Physical dependence is associated with the formation of neuroadaptive changes in the central nervous system (CNS), both at the molecular and cellular levels. Various studies have demonstrated the immunomodulatory and proinflammatory properties of morphine. The resulting neuroinflammation in drug dependence exacerbates substance abuse-related behaviors and increases morphine tolerance. Studies prove that fluoride exposure may also contribute to the development of neuroinflammation and neurodegenerative changes. Morphine addiction is a major social problem. Neuroinflammation increases tolerance to morphine, and neurodegenerative effects caused by fluoride in structures related to the development of dependence may impair the functioning of neuronal pathways, change the concentration of neurotransmitters, and cause memory and learning disorders, which implies this element influences the development of dependence. Therefore, our study aimed to evaluate the inflammatory state of selected brain structures in morphine-dependent rats pre-exposed to fluoride, including changes in cyclooxygenase-1 (COX-1) and cyclooxygenase-2 (COX-2) expression as well as microglial and astroglial activity via the evaluation of Iba1 and GFAP expression. We provide evidence that both morphine administration and fluoride exposure have an impact on the inflammatory response by altering the expression of COX-1, COX-2, ionized calcium-binding adapter molecule (Iba1), and glial fibrillary acidic protein (GFAP) in brain structures involved in dependence development, such as the prefrontal cortex, striatum, hippocampus, and cerebellum. We observed that the expression of COX-1 and COX-2 in morphine-dependent rats is influenced by prior fluoride exposure, and these changes vary depending on the specific brain region. Additionally, we observed active astrogliosis, as indicated by increased GFAP expression, in all brain structures of morphine-dependent rats, regardless of fluoride exposure. Furthermore, the effect of morphine on Iba1 expression varied across different brain regions, and fluoride pre-exposure may influence microglial activation. However, it remains unclear whether these changes are a result of the direct or indirect actions of morphine and fluoride on the factors analyzed.
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Affiliation(s)
- Patrycja Kupnicka
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wlkp. 72, 70-111 Szczecin, Poland
| | - Joanna Listos
- Department of Pharmacology and Pharmacodynamics, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland
| | - Maciej Tarnowski
- Department of Physiology in Health Sciences, Pomeranian Medical University, 70-210 Szczecin, Poland
| | - Agnieszka Kolasa
- Department of Histology and Embryology, Pomeranian Medical University, Powstańców Wlkp. 72, 70-111 Szczecin, Poland
| | - Patrycja Kapczuk
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wlkp. 72, 70-111 Szczecin, Poland
| | - Anna Surówka
- Department of Plastic, Endocrine and General Surgery, Pomeranian Medical University, 72-010 Szczecin, Poland
| | - Jakub Kwiatkowski
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wlkp. 72, 70-111 Szczecin, Poland
| | - Kamil Janawa
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wlkp. 72, 70-111 Szczecin, Poland
| | - Dariusz Chlubek
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wlkp. 72, 70-111 Szczecin, Poland
| | - Irena Baranowska-Bosiacka
- Department of Biochemistry and Medical Chemistry, Pomeranian Medical University in Szczecin, Powstańców Wlkp. 72, 70-111 Szczecin, Poland
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Aslan A, Hatırnaz-Ng Ö, Taşar O, Özbek U, Yamantürk-Çelik P. Memantine and SKF82958 but not an enriched environment modulate naloxone-precipitated morphine abstinence syndrome without affecting hippocampal tPA mRNA levels in rats. Pharmacol Biochem Behav 2024; 234:173688. [PMID: 38056696 DOI: 10.1016/j.pbb.2023.173688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2023] [Revised: 11/30/2023] [Accepted: 12/01/2023] [Indexed: 12/08/2023]
Abstract
There is accumulating evidence supporting the involvement of tissue-plasminogen activator (tPA) in the mechanisms underlying the effects of morphine and an enriched environment. This study was designed to investigate possible interactive roles of the glutamatergic and the dopaminergic systems regarding hippocampal tPA in the neurobiology of morphine dependence. For this purpose, Wistar albino rats, housed in either a standard- (SE) or an enriched environment (EE) were implanted subcutaneously with morphine (150 mg base) or placebo pellets. Behavioral and somatic signs of morphine abstinence precipitated by an opioid-receptor antagonist naloxone (1 mg/kg, i.p.) 72 h after the pellet implantation were observed individually for 15 min in all groups. Memantine (10 mg/kg i.p.), an antagonist of N-methyl-D-aspartic acid class of glutamatergic receptor-subtype decreased teeth-chattering, ptosis, diarrhea and the loss of body weight. SKF82958 (1 mg/kg, i.p.), a dopamine D1-receptor agonist decreased jumping and ptosis but increased rearing and loss of body weight. On the other hand, co-administration of SKF82958 with memantine prevented some of their effects that occur when administered alone at the same doses. Furthermore, the EE did not change the intensity of morphine abstinence. The level of hippocampal tPA mRNA was found to be lower in the SE morphine abstinence group than in the placebo group and close to the EE morphine abstinence group, whereas there was no significant alteration of its level in the memantine or SKF82958 groups. These findings suggest that the interaction between the glutamatergic and the dopaminergic systems may be an important component of the neurobiology of morphine dependence, and the role of tPA in this interaction should be further investigated.
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Affiliation(s)
- Abdurrahman Aslan
- Department of Medical Pharmacology, Istanbul Faculty of Medicine, Istanbul University, 34093 Çapa, İstanbul, Turkey; Institute of Health Sciences, Istanbul University, 34126 Vezneciler, İstanbul, Turkey
| | - Özden Hatırnaz-Ng
- Department of Genetics, Aziz Sancar Institute of Experimental Medicine, Istanbul University, 34093 Çapa, İstanbul, Turkey
| | - Orçun Taşar
- Department of Genetics, Aziz Sancar Institute of Experimental Medicine, Istanbul University, 34093 Çapa, İstanbul, Turkey
| | - Uğur Özbek
- Department of Genetics, Aziz Sancar Institute of Experimental Medicine, Istanbul University, 34093 Çapa, İstanbul, Turkey
| | - Pınar Yamantürk-Çelik
- Department of Medical Pharmacology, Istanbul Faculty of Medicine, Istanbul University, 34093 Çapa, İstanbul, Turkey; Institute of Health Sciences, Istanbul University, 34126 Vezneciler, İstanbul, Turkey.
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Li C, Lin Y, Lin R, Chen Z, Zhou Q, Luo C, Mo Z. Host miR-129-5p reverses effects of ginsenoside Rg1 on morphine reward possibly mediated by changes in B. vulgatus and serotonin metabolism in hippocampus. Gut Microbes 2023; 15:2254946. [PMID: 37698853 PMCID: PMC10498813 DOI: 10.1080/19490976.2023.2254946] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Revised: 07/31/2023] [Accepted: 08/30/2023] [Indexed: 09/13/2023] Open
Abstract
Morphine addiction is closely associated with dysbiosis of the gut microbiota. miRNAs play a crucial role in regulating intestinal bacterial growth and are involved in the development of disease. Ginsenoside Rg1 exhibits an anti-addiction effect and significantly improves intestinal microbiota disorders. In pseudo-germfree mice, supplementation with Bacteroides vulgatus (B. vulgatus) synergistically enhanced Rg1 to alleviate morphine addiction. However, it is currently unknown the relationship between fecal miRNAs in morphine-exposed mice and their potential modulation of gut microbiome, as well as their role in mediating the resistance of ginsenoside Rg1 to drug addiction. Here, we studied the fecal miRNA abundance in mice treated with morphine to explore the different miRNAs expressed, their association with B. vulgatus and their role in the amelioration of morphine reward by ginsenoside Rg1. Our results indicated ginsenoside Rg1 attenuated the significant increase in miR-129-5p expression observed in the feces of morphine-treated mice. The miR-129-5p, specifically, inhibited the growth of B. vulgatus by modulating the transcript of the site-tag BVU_RS11835 and increased the levels of 5-hydroxytryptophan and indole-3-carboxaldehyde in vitro. Subsequently, we noticed that oral administration of synthetic miR-129-5p increased 5-HT levels in the hippocampus and inhibited the reversal effect of ginsenoside Rg1 both on the relative abundance of B. vulgatus in the feces and CPP effect induced by morphine exposure. In short, Ginsenoside Rg1 might play an indirect role in remodeling the B. vulgatus against morphine reward by suppressing miR-129-5p expression. These results highlight the role of miR-129-5p and B. vulgatus in morphine reward and the anti-morphine addiction of ginsenoside Rg1.
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Affiliation(s)
- Chan Li
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Yingbo Lin
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
- Department of Pharmacy, Jiangmen Central Hospital, Jiangmen, China
| | - Rukun Lin
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Zhijie Chen
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Qichun Zhou
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Chaohua Luo
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Zhixian Mo
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
- Department of Chinese Medicine, Zhujiang Hospital, Southern Medical University, Guangzhou, China
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Ochandarena NE, Niehaus JK, Tassou A, Scherrer G. Cell-type specific molecular architecture for mu opioid receptor function in pain and addiction circuits. Neuropharmacology 2023; 238:109597. [PMID: 37271281 PMCID: PMC10494323 DOI: 10.1016/j.neuropharm.2023.109597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2023] [Accepted: 05/13/2023] [Indexed: 06/06/2023]
Abstract
Opioids are potent analgesics broadly used for pain management; however, they can produce dangerous side effects including addiction and respiratory depression. These harmful effects have led to an epidemic of opioid abuse and overdose deaths, creating an urgent need for the development of both safer pain medications and treatments for opioid use disorders. Both the analgesic and addictive properties of opioids are mediated by the mu opioid receptor (MOR), making resolution of the cell types and neural circuits responsible for each of the effects of opioids a critical research goal. Single-cell RNA sequencing (scRNA-seq) technology is enabling the identification of MOR-expressing cell types throughout the nervous system, creating new opportunities for mapping distinct opioid effects onto newly discovered cell types. Here, we describe molecularly defined MOR-expressing neuronal cell types throughout the peripheral and central nervous systems and their potential contributions to opioid analgesia and addiction.
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Affiliation(s)
- Nicole E Ochandarena
- Neuroscience Curriculum, Biological and Biomedical Sciences Program, The University of North Carolina School of Medicine, Chapel Hill, NC, 27599, USA; Department of Cell Biology and Physiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA; UNC Neuroscience Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA; Department of Pharmacology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
| | - Jesse K Niehaus
- Department of Cell Biology and Physiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA; UNC Neuroscience Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA; Department of Pharmacology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Adrien Tassou
- Department of Cell Biology and Physiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA; UNC Neuroscience Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA; Department of Pharmacology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA
| | - Grégory Scherrer
- Department of Cell Biology and Physiology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA; UNC Neuroscience Center, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA; Department of Pharmacology, The University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA; New York Stem Cell Foundation - Robertson Investigator, University of North Carolina at Chapel Hill, Chapel Hill, NC, 27599, USA.
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Akbari M, Parsaei H, Sedaghat K, Mousavi F. Attenuation of morphine conditioned place preference and reinstatement by vitamin D. Behav Pharmacol 2023; 34:404-410. [PMID: 37581227 DOI: 10.1097/fbp.0000000000000747] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/16/2023]
Abstract
Opioid action in the brain involves the dopamine-reward system as well as non-dopamine pathways. Since vitamin D also modulates the brain's dopamine system, the question of this study was how vitamin D might affect the opioid influences on the reward system. Therefore, the objective of this study was to investigate the possible effect of vitamin D on the conditioned place preference (CPP) induced by morphine, as a valuable model of assessment of the reinforcing properties of opioids by associating the context to the rewarding properties of the addictive drugs. Male Wistar rats were randomly divided into two main groups that either received saline (morphine vehicle) or morphine (5 mg/kg, intraperitoneally) for CPP. Each of the main groups was divided into three vitamin D treatment subgroups: vitamin D vehicle and vitamin D (5 and 10 μg/kg, intraperitoneally). Vitamin D injections were started 1 week ahead of the experiment (two injections) or immediately after post-conditioning and in both cases, it was continued twice weekly throughout the CPP. Administration of vitamin D (10 μg/kg) before conditioning in CPP markedly attenuated morphine expression in the post-conditioning test. Receiving vitamin D (5 or 10 μg/kg) before or after conditioning significantly attenuated morphine reinstatement. Administration of vitamin D after opioid conditioning facilitated morphine memory extinction and attenuated morphine reinstatement. Vitamin D is probably a valuable addition to be considered as a part of the treatment for prevention or minimizing the dependency or relapse to opioids.
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Affiliation(s)
- Mahdieh Akbari
- Research Center of Physiology, Semnan University of Medical Sciences, Semnan
| | - Houman Parsaei
- Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Katayoun Sedaghat
- Research Center of Physiology, Semnan University of Medical Sciences, Semnan
| | - Fatemeh Mousavi
- Research Center of Physiology, Semnan University of Medical Sciences, Semnan
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Jiang Y, Wei D, Xie Y. Functional modular networks identify the pivotal genes associated with morphine addiction and potential drug therapies. BMC Anesthesiol 2023; 23:151. [PMID: 37138216 PMCID: PMC10155436 DOI: 10.1186/s12871-023-02111-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 04/25/2023] [Indexed: 05/05/2023] Open
Abstract
BACKGROUND Chronic morphine usage induces lasting molecular and microcellular adaptations in distinct brain areas, resulting in addiction-related behavioural abnormalities, drug-seeking, and relapse. Nonetheless, the mechanisms of action of the genes responsible for morphine addiction have not been exhaustively studied. METHODS We obtained morphine addiction-related datasets from the Gene Expression Omnibus (GEO) database and screened for Differentially Expressed Genes (DEGs). Weighted Gene Co-expression Network Analysis (WGCNA) functional modularity constructs were analyzed for genes associated with clinical traits. Venn diagrams were filtered for intersecting common DEGs (CDEGs). Gene Ontology (GO) enrichment analysis and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway enrichment analysis for functional annotation. Protein-protein interaction network (PPI) and CytoHubba were used to screen for hub genes. Potential treatments for morphine addiction were figured out with the help of an online database. RESULTS Sixty-five common differential genes linked to morphine addiction were identified, and functional enrichment analysis showed that they were primarily involved in ion channel activity, protein transport, the oxytocin signalling pathway, neuroactive ligand-receptor interactions, and other signalling pathways. Based on the PPI network, ten hub genes (CHN2, OLIG2, UGT8A, CACNB2, TIMP3, FKBP5, ZBTB16, TSC22D3, ISL1, and SLC2A1) were checked. In the data set GSE7762, all of the Area Under Curve (AUC) values for the hub gene Receiver Operating Characteristic (ROC) curves were greater than 0.8. We also used the DGIdb database to look for eight small-molecule drugs that might be useful for treating morphine addiction. CONCLUSIONS The hub genes are crucial genes associated with morphine addiction in the mouse striatum. The oxytocin signalling pathway may play a vital role in developing morphine addiction.
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Affiliation(s)
- Yage Jiang
- Department of Anesthesiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021 China
| | - Donglei Wei
- Department of Traumatology Orthopedic Hand Surgery, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021 China
| | - Yubo Xie
- Department of Anesthesiology, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021 China
- Guangxi Key Laboratory of Enhanced Recovery After Surgery for Gastrointestinal Cancer, The First Affiliated Hospital of Guangxi Medical University, Nanning, 530021 China
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Mazzeo F, Meccariello R, Guatteo E. Molecular and Epigenetic Aspects of Opioid Receptors in Drug Addiction and Pain Management in Sport. Int J Mol Sci 2023; 24:ijms24097831. [PMID: 37175536 PMCID: PMC10178540 DOI: 10.3390/ijms24097831] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 04/14/2023] [Accepted: 04/21/2023] [Indexed: 05/15/2023] Open
Abstract
Opioids are substances derived from opium (natural opioids). In its raw state, opium is a gummy latex extracted from Papaver somniferum. The use of opioids and their negative health consequences among people who use drugs have been studied. Today, opioids are still the most commonly used and effective analgesic treatments for severe pain, but their use and abuse causes detrimental side effects for health, including addiction, thus impacting the user's quality of life and causing overdose. The mesocorticolimbic dopaminergic circuitry represents the brain circuit mediating both natural rewards and the rewarding aspects of nearly all drugs of abuse, including opioids. Hence, understanding how opioids affect the function of dopaminergic circuitry may be useful for better knowledge of the process and to develop effective therapeutic strategies in addiction. The aim of this review was to summarize the main features of opioids and opioid receptors and focus on the molecular and upcoming epigenetic mechanisms leading to opioid addiction. Since synthetic opioids can be effective for pain management, their ability to induce addiction in athletes, with the risk of incurring doping, is also discussed.
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Affiliation(s)
- Filomena Mazzeo
- Department of Economics, Law, Cybersecurity and Sports Sciences, University of Naples "Parthenope", 80133 Naples, Italy
- Department of Movement Sciences and Wellbeing, University of Naples "Parthenope", 80133 Naples, Italy
| | - Rosaria Meccariello
- Department of Movement Sciences and Wellbeing, University of Naples "Parthenope", 80133 Naples, Italy
| | - Ezia Guatteo
- Department of Movement Sciences and Wellbeing, University of Naples "Parthenope", 80133 Naples, Italy
- IRCCS Santa Lucia Foundation, Via del Fosso di Fiorano 64, 00143 Rome, Italy
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McDermott MV, Ram A, Mattoon MT, Haderlie EE, Raddatz MC, Thomason MK, Bobeck EN. A small molecule ligand for the novel pain target, GPR171, produces minimal reward in mice. Pharmacol Biochem Behav 2023; 224:173543. [PMID: 36933620 DOI: 10.1016/j.pbb.2023.173543] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 03/10/2023] [Accepted: 03/12/2023] [Indexed: 03/19/2023]
Abstract
ProSAAS is one of the most abundant proteins in the brain and is processed into several smaller peptides. One of which, BigLEN, is an endogenous ligand for the G protein-coupled receptor, GPR171. Recent work in rodent models has shown that a small-molecule ligand for GPR171, MS15203, increases morphine antinociception and is effective in lessening chronic pain. While these studies provide evidence for GPR171 as a possible pain target, its abuse liability has not yet been assessed and was evaluated in the current study. We first mapped the distribution of GPR171 and ProSAAS throughout the reward circuit of the brain using immunohistochemistry and showed that GPR171 and ProSAAS are localized in the hippocampus, basolateral amygdala, nucleus accumbens, prefrontal cortex. In the major dopaminergic structure, the ventral tegmental area (VTA), GPR171 appeared to be primarily localized in dopamine neurons while ProSAAS is outside of dopamine neurons. Next, MS15203 was administered to mice with or without morphine, and VTA slices were stained for the immediate early gene c-Fos as a marker of neuronal activation. Quantification of c-Fos-positive cells revealed no statistical difference between MS15203 and saline, suggesting that MS15203 does not increase VTA activation and dopamine release. The results of a conditioned place preference experiment showed that treatment with MS15203 produced no place preference indicating a lack of reward-related behavior. Taken together this data provides evidence that the novel pain therapeutic, MS15203, has minimal reward liability. Therefore, GPR171 deserves further exploration as a pain target. SIGNIFICANCE STATEMENT: MS15203, a drug that activates the receptor GPR171, was previously shown to increase morphine analgesia. The authors use in vivo and histological techniques to show that it fails to activate the rodent reward circuitry, providing support for the continued exploration of MS15203 as a novel pain drug, and GPR171 a novel pain target.
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Affiliation(s)
- Max V McDermott
- Dept. of Biology, Utah State University, 5305 Old Main Hill, Logan, UT 84322-5305, United States of America; Interdisciplinary Neuroscience Program, Utah State University, 5305 Old Main Hill, Logan, UT 84322-5305, United States of America
| | - Akila Ram
- Dept. of Biology, Utah State University, 5305 Old Main Hill, Logan, UT 84322-5305, United States of America
| | - Matthew T Mattoon
- Dept. of Biology, Utah State University, 5305 Old Main Hill, Logan, UT 84322-5305, United States of America
| | - Emmaline E Haderlie
- Dept. of Biology, Utah State University, 5305 Old Main Hill, Logan, UT 84322-5305, United States of America
| | - Megan C Raddatz
- Dept. of Biology, Utah State University, 5305 Old Main Hill, Logan, UT 84322-5305, United States of America; Interdisciplinary Neuroscience Program, Utah State University, 5305 Old Main Hill, Logan, UT 84322-5305, United States of America
| | - Madi K Thomason
- Dept. of Biology, Utah State University, 5305 Old Main Hill, Logan, UT 84322-5305, United States of America
| | - Erin N Bobeck
- Dept. of Biology, Utah State University, 5305 Old Main Hill, Logan, UT 84322-5305, United States of America; Interdisciplinary Neuroscience Program, Utah State University, 5305 Old Main Hill, Logan, UT 84322-5305, United States of America.
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11
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Deng L, Chu Z, Liu P, Li B, Lei G, Li S, Ma Y, Dang Y. Effects of brain-derived neurotrophic factor and adeno-associated viral vector on morphine-induced condition through target concentration changes in the ventral tegmental area and nucleus accumbens. Behav Brain Res 2023; 445:114385. [PMID: 36889465 DOI: 10.1016/j.bbr.2023.114385] [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: 01/17/2023] [Revised: 02/25/2023] [Accepted: 03/05/2023] [Indexed: 03/08/2023]
Abstract
Morphine remains the standard analgesic for severe pain. However, the clinical use of morphine is limited by the innate tendency of opiates to become addictive. Brain-derived neurotrophic factor (BDNF) is a growth factor that is protective against many mental disorders. This study aimed to evaluate the protective function of BDNF on morphine addiction based on the behavioural sensitisation (BS) model and assess potential changes in downstream molecular tropomyosin-related kinase receptor B (TrkB) and cyclic adenosine monophosphate response element binding protein (CREB) expression caused by overexpression of BDNF. We divided 64 male C57BL/6 J mice into saline, morphine, morphine plus adeno-associated viral vector (AAV), and morphine plus BDNF groups. After administering the treatments, behavioural tests were conducted during the development and expression phases of BS, followed by a western blot analysis. All data were analysed by one- or two-way analysis of variance. The overexpression of BDNF in the ventral tegmental area (VTA) caused by BDNF-AAV injection decreased the total distance of locomotion in mice who underwent morphine-induced BS and increased the concentrations of BDNF, TrkB, and CREB in the VTA and nucleus accumbens (NAc). BDNF exerts protective effects against morphine-induced BS by altering target gene expression in the VTA and NAc.
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Affiliation(s)
- Lisha Deng
- Department of Psychiatry, First Affiliated Hospital of Xi'an Jiaotong University Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, China; College of Medicine & Forensics, Xi'an Jiaotong University Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Zheng Chu
- Department of Forensic Medicine, Xuzhou Medical University, Xuzhou, Jiangsu, China
| | - Peng Liu
- Department of Pharmacology and Toxicology, Institute of Basic Medicine Science, Xi'an Medical University, Xi'an, Shaanxi, China
| | - Baijia Li
- Department of Psychiatry, First Affiliated Hospital of Xi'an Jiaotong University Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Gang Lei
- College of Medicine & Forensics, Xi'an Jiaotong University Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Shaofu Li
- College of Medicine & Forensics, Xi'an Jiaotong University Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Yongkang Ma
- College of Medicine & Forensics, Xi'an Jiaotong University Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, China
| | - Yonghui Dang
- College of Medicine & Forensics, Xi'an Jiaotong University Health Science Center, Xi'an Jiaotong University, Xi'an, Shaanxi, China.
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12
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Ahmadi S, Mohammadi Talvar S, Masoudi K, Zobeiri M. Repeated Use of Morphine Induces Anxiety by Affecting a Proinflammatory Cytokine Signaling Pathway in the Prefrontal Cortex in Rats. Mol Neurobiol 2023; 60:1425-1439. [PMID: 36450935 DOI: 10.1007/s12035-022-03144-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2022] [Accepted: 11/17/2022] [Indexed: 12/05/2022]
Abstract
We examined the role of toll-like receptors (TLRs) and proinflammatory cytokine signaling pathways in the prefrontal cortex (PFC) in anxiety-like behaviors after repeated use of morphine. Morphine (10 mg/kg) was used twice daily for 8 days to induce morphine dependence in male Wistar rats. On day 8, opioid dependence was confirmed by measuring naloxone-precipitated withdrawal signs. On days 1 and 8, anxiety-like behaviors were evaluated using a light/dark box test. Expression of TLR1 and 4, proinflammatory cytokines, and some of the downstream signaling molecules was also evaluated in the bilateral PFC at mRNA and protein levels following morphine dependence. The results revealed that morphine caused anxiolytic-like effects on day 1 while induced anxiety following 8 days of repeated injection. On day 8, a significant decrease in TLR1 expression was detected in the PFC in morphine-dependent rats, but TLR4 remained unaffected. Repeated morphine injection significantly increased IL1-β, TNFα, and IL6 expression, but decreased IL1R and TNFR at mRNA and protein levels except for IL6R at the protein level in the PFC. The p38α mitogen-activated protein (MAP) kinase expression significantly increased but the JNK3 expression decreased in the PFC in morphine-dependent rats. Repeated injection of morphine also significantly increased the NF-κB expression in the PFC. Further, significant increases in Let-7c, mir-133b, and mir-365 were detected in the PFC in morphine-dependent rats. We conclude that TLR1 and proinflammatory cytokines signaling pathways in the PFC are associated with the anxiogenic-like effects of morphine following its chronic use in rats via a MAP kinase/NF-κB pathway.
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Affiliation(s)
- Shamseddin Ahmadi
- Department of Biological Science, Faculty of Science, University of Kurdistan, P.O. Box 416, Sanandaj, Iran.
| | - Shiva Mohammadi Talvar
- Department of Biological Science, Faculty of Science, University of Kurdistan, P.O. Box 416, Sanandaj, Iran
| | - Kayvan Masoudi
- Department of Biological Science, Faculty of Science, University of Kurdistan, P.O. Box 416, Sanandaj, Iran
| | - Mohammad Zobeiri
- Department of Biological Science, Faculty of Science, University of Kurdistan, P.O. Box 416, Sanandaj, Iran
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Marinho EAV, Oliveira-Lima AJ, Reis HS, Santos-Baldaia R, Wuo-Silva R, Hollais AW, Yokoyama TS, Frussa-Filho R, Berro LF. Context-dependent effects of the CB1 receptor antagonist rimonabant on morphine-induced behavioral sensitization in female mice. Front Pharmacol 2023; 14:1100527. [PMID: 36814501 PMCID: PMC9939462 DOI: 10.3389/fphar.2023.1100527] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Accepted: 01/26/2023] [Indexed: 02/09/2023] Open
Abstract
Introduction: The endocannabinoid system has been implicated in the neurobiology of opioid use disorder. While the CB1 receptor antagonist rimonabant has been shown to block some of the behavioral effects of opioids, studies suggest that the treatment environment (i.e., receiving treatment in the drug-associated environment, and/or novelty) can influence its effects. In the present study, we investigated the role of the treatment environment in the effects of rimonabant on the expression of morphine-induced behavioral sensitization. Methods: Adult female Swiss mice were submitted to a behavioral sensitization protocol, during which they received morphine (20 mg/kg, i.p.) in the open-field apparatus, and were subsequently treated with vehicle or rimonabant (1 or 10 mg/kg, i.p.) either in the open-field, in the home-cage or in an activity box (novel environment). The expression of conditioned locomotion (increased locomotor activity in the open-field apparatus in the absence of morphine) and of morphine-induced behavioral sensitization (increased locomotor activity in animals sensitized to morphine) was evaluated during asubsequent saline and morphine challenge, respectively. Results: Animals treated with morphine expressed behavioral sensitization, showing a significant increase in locomotor activity over time. Animals sensitized to morphine and treated with vehicle in the home-cage expressed conditioned locomotion, an effect that was blocked by home-cage treatment with rimonabant. During a saline challenge, only animals sensitized to morphine and treated with saline in the home-cage expressed morphine-induced conditioned locomotion. All morphine-treated animals that received saline during the treatment phase (control groups) expressed behavioral sensitization during the morphine challenge. Treatment with rimonabant in the open-field and in the activity box, but not in the home-cage, blocked the expression of morphine-induced behavioral sensitization. Discussion: Our findings suggest that CB1 receptor antagonism can modulate conditioned responses to morphine even when administered in the home-cage. However, exposure to the drug-associated environment or to a novel environment is necessary for the expression of rimonabant's effects on morphine-induced behavioral sensitization during a morphine challenge.
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Affiliation(s)
- Eduardo A. V. Marinho
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Ilhéus, BA, Brazil,Department of Pharmacology, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Alexandre Justo Oliveira-Lima
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Ilhéus, BA, Brazil,Department of Pharmacology, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Henrique S. Reis
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Ilhéus, BA, Brazil
| | - Renan Santos-Baldaia
- Department of Pharmacology, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Raphael Wuo-Silva
- Department of Pharmacology, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Andre W. Hollais
- Department of Pharmacology, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Thais S. Yokoyama
- Department of Pharmacology, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Roberto Frussa-Filho
- Department of Pharmacology, Universidade Federal de São Paulo, São Paulo, SP, Brazil
| | - Lais F. Berro
- Department of Health Sciences, Universidade Estadual de Santa Cruz, Ilhéus, BA, Brazil,Department of Pharmacology, Universidade Federal de São Paulo, São Paulo, SP, Brazil,Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, United States,*Correspondence: Lais F. Berro,
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Amohashemi E, Alaei H, Reisi P. Effects of GABA B receptor blockade on lateral habenula glutamatergic neuron activity following morphine injection in the rat: an electrophysiological study. Res Pharm Sci 2022; 18:16-23. [PMID: 36846735 PMCID: PMC9951782 DOI: 10.4103/1735-5362.363592] [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: 05/31/2022] [Revised: 08/22/2022] [Accepted: 11/15/2022] [Indexed: 12/25/2022] Open
Abstract
Background and purpose The lateral habenula (LHb), a key area in the regulation of the reward system, exerts a major influence on midbrain neurons. It has been shown that the gamma-aminobutyric acid (GABA)- ergic system plays the main role in morphine dependency. The role of GABA type B receptors (GABABRs) in the regulation of LHb neural activity in response to morphine, remains unknown. In this study, the effect of GABABRs blockade in response to morphine was assessed on the neuronal activity in the LHb. Experimental approach The baseline firing rate was recorded for 15 min, then morphine (5 mg/kg; s.c) and phaclofen (0, 0.5, 1, and 2 μg/rat), a GABABRs' antagonist, were microinjected into the LHb. Their effects on firing LHb neurons were investigated using an extracellular single-unit recording in male rats. Findings/Results The results revealed that morphine decreased neuronal activity, and GABABRs blockade alone did not have any effect on the neuronal activity of the LHb. A low dose of the antagonist had no significant effect on neuronal firing rate, while blockade with doses of 1 and 2 μg/rat of the antagonist could significantly prevent the inhibitory effects of morphine on the LHb neuronal activity. Conclusion and implications This result indicated that GABABRs have a potential modulator effect, in response to morphine in the LHb.
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Affiliation(s)
- Elahe Amohashemi
- Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, I.R. Iran
| | - Hojjatallah Alaei
- Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, I.R. Iran
| | - Parham Reisi
- Department of Physiology, School of Medicine, Isfahan University of Medical Sciences, Isfahan, I.R. Iran,Corresponding author: P. Reisi Tel.: +98-3137929033; Fax: +98-3136688597
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Effect of human mesenchymal stem cell secretome administration on morphine self-administration and relapse in two animal models of opioid dependence. Transl Psychiatry 2022; 12:462. [PMID: 36333316 PMCID: PMC9636200 DOI: 10.1038/s41398-022-02225-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 10/14/2022] [Accepted: 10/19/2022] [Indexed: 11/06/2022] Open
Abstract
The present study investigates the possible therapeutic effects of human mesenchymal stem cell-derived secretome on morphine dependence and relapse. This was studied in a new model of chronic voluntary morphine intake in Wistar rats which shows classic signs of morphine intoxication and a severe naloxone-induced withdrawal syndrome. A single intranasal-systemic administration of MSCs secretome fully inhibited (>95%; p < 0.001) voluntary morphine intake and reduced the post-deprivation relapse intake by 50% (p < 0.02). Since several studies suggest a significant genetic contribution to the chronic use of many addictive drugs, the effect of MSCs secretome on morphine self-administration was further studied in rats bred as high alcohol consumers (UChB rats). Sub-chronic intraperitoneal administration of morphine before access to increasing concentrations of morphine solutions and water were available to the animals, led UChB rats to prefer ingesting morphine solutions over water, attaining levels of oral morphine intake in the range of those in the Wistar model. Intranasally administered MSCs secretome to UChB rats dose-dependently inhibited morphine self-administration by 72% (p < 0.001); while a single intranasal dose of MSC-secretome administered during a morphine deprivation period imposed on chronic morphine consumer UChB rats inhibited re-access morphine relapse intake by 80 to 85% (p < 0.0001). Both in the Wistar and the UChB rat models, MSCs-secretome administration reversed the morphine-induced increases in brain oxidative stress and neuroinflammation, considered as key engines perpetuating drug relapse. Overall, present preclinical studies suggest that products secreted by human mesenchymal stem cells may be of value in the treatment of opioid addiction.
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Involvement of GABAA receptors of lateral habenula in the acquisition and expression phases of morphine-induced place preference in male rats. Behav Pharmacol 2022; 33:452-465. [PMID: 36148835 DOI: 10.1097/fbp.0000000000000695] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The lateral habenula (LHb) is a critical brain structure involved in the aversive response to drug abuse. It has been determined that the gamma-aminobutyric acid (GABA)-ergic system plays the main role in morphine dependency. The role of GABA type A receptors (GABAARs) in LHb on morphine-induced conditioned place preference (CPP) remains unknown. In this study, the effect of bilateral intra-LHb microinjection of GABAAR agonist and antagonist on the acquisition and expression phases of CPP, utilizing a 5-day CPP paradigm in male rats, was evaluated. Subcutaneous administration of different doses of morphine caused a dose-dependent CPP. Intra-LHb microinjection of the GABAAR agonist, muscimol, in combination with morphine (5 mg/kg; subcutaneously) enhanced CPP scores in the acquisition phase of morphine CPP, whereas the GABAAR antagonist, bicuculline, significantly reduced the conditioning scores in the acquisition phase. Furthermore, pretreatment with a high dose of bicuculline reversed the additive effect of muscimol during the acquisition phase, yet the low dose of antagonist had no significant effect on agonist-induced CPP scores. On the other hand, muscimol (3 µg/rat) significantly increased CPP scores in the expression phase but bicuculline did not induce a significant effect on CPP scores. Bicuculline and muscimol microinjections did not affect locomotor activity in the testing sessions. Our results confirm that GABAARs in LHb play an active role in morphine reward. In addition, microinjections of bicuculline/muscimol may alter the morphine response through the GABAergic system.
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Dysregulation of iron homeostasis and methamphetamine reward behaviors in Clk1-deficient mice. Acta Pharmacol Sin 2022; 43:1686-1698. [PMID: 34811513 PMCID: PMC9253021 DOI: 10.1038/s41401-021-00806-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 10/28/2021] [Indexed: 11/08/2022] Open
Abstract
Chronic administration of methamphetamine (METH) leads to physical and psychological dependence. It is generally accepted that METH exerts rewarding effects via competitive inhibition of the dopamine transporter (DAT), but the molecular mechanism of METH addiction remains largely unknown. Accumulating evidence shows that mitochondrial function is important in regulation of drug addiction. In this study, we investigated the role of Clk1, an essential mitochondrial hydroxylase for ubiquinone (UQ), in METH reward effects. We showed that Clk1+/- mutation significantly suppressed METH-induced conditioned place preference (CPP), accompanied by increased expression of DAT in plasma membrane of striatum and hippocampus due to Clk1 deficiency-induced inhibition of DAT degradation without influencing de novo synthesis of DAT. Notably, significantly decreased iron content in striatum and hippocampus was evident in both Clk1+/- mutant mice and PC12 cells with Clk1 knockdown. The decreased iron content was attributed to increased expression of iron exporter ferroportin 1 (FPN1) that was associated with elevated expression of hypoxia-inducible factor-1α (HIF-1α) in response to Clk1 deficiency both in vivo and in vitro. Furthermore, we showed that iron played a critical role in mediating Clk1 deficiency-induced alteration in DAT expression, presumably via upstream HIF-1α. Taken together, these data demonstrated that HIF-1α-mediated changes in iron homostasis are involved in the Clk1 deficiency-altered METH reward behaviors.
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Custodio RJP, Kim M, Sayson LV, Ortiz DM, Buctot D, Lee HJ, Cheong JH, Kim HJ. Regulation of clock and clock-controlled genes during morphine reward and reinforcement: Involvement of the period 2 circadian clock. J Psychopharmacol 2022; 36:875-891. [PMID: 35486444 DOI: 10.1177/02698811221089040] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND Morphine abuse is a devastating disorder that affects millions of people worldwide, and literature evidence indicates a relationship between opioid abuse and the circadian clock. AIM We explored morphine reward and reinforcement using mouse models with Per2 gene modifications (knockout (KO); overexpression (OE)). METHODS Mice were exposed to various behavioral, electroencephalographic, pharmacological, and molecular tests to assess the effects of morphine and identify the underlying mechanisms with a focus on reward and reinforcement and the corresponding involvement of circadian and clock-controlled gene regulation. RESULTS Per2 deletion enhances morphine-induced analgesia, locomotor sensitization, conditioned place preference (CPP), and self-administration (SA) in mice, whereas its overexpression attenuated these effects. In addition, reduced withdrawal was observed in Per2 KO mice, whereas an augmented withdrawal response was observed in Per2 OE mice. Moreover, naloxone and SCH 23390 blocked morphine CPP in Per2 KO and wild-type (WT) mice. The rewarding (CPP) and reinforcing effects (SA) observed in morphine-conditioned and morphine self-administered Per2 KO and WT mice were accompanied by activated μ-opioid and dopamine D1 receptors and TH in the mesolimbic (VTA/NAcc) system. Furthermore, genetic modifications of Per2 in mice innately altered some clock genes in response to morphine. CONCLUSION These findings improve our understanding of the role of Per2 in morphine-induced psychoactive effects. Our data and those obtained in previous studies indicate that targeting Per2 may have applicability in the treatment of substance abuse.
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Affiliation(s)
- Raly James Perez Custodio
- School of Pharmacy, Jeonbuk National University, Jeonju-si, Republic of Korea.,Uimyung Research Institute for Neuroscience, Department of Pharmacy, Sahmyook University, Seoul, Republic of Korea
| | - Mikyung Kim
- Department of Chemistry & Life Science, Sahmyook University, Seoul, Republic of Korea
| | - Leandro Val Sayson
- Uimyung Research Institute for Neuroscience, Department of Pharmacy, Sahmyook University, Seoul, Republic of Korea
| | - Darlene Mae Ortiz
- Uimyung Research Institute for Neuroscience, Department of Pharmacy, Sahmyook University, Seoul, Republic of Korea
| | - Danilo Buctot
- Uimyung Research Institute for Neuroscience, Department of Pharmacy, Sahmyook University, Seoul, Republic of Korea
| | - Hyun Jun Lee
- Uimyung Research Institute for Neuroscience, Department of Pharmacy, Sahmyook University, Seoul, Republic of Korea
| | - Jae Hoon Cheong
- School of Pharmacy, Jeonbuk National University, Jeonju-si, Republic of Korea
| | - Hee Jin Kim
- Uimyung Research Institute for Neuroscience, Department of Pharmacy, Sahmyook University, Seoul, Republic of Korea
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Toxic desomorphine encephalopathy due to the use of “Krokodil”: clinical and neuroimaging features. КЛИНИЧЕСКАЯ ПРАКТИКА 2022. [DOI: 10.17816/clinpract96475] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022] Open
Abstract
Background: Toxic desomorphine encephalopathy (TDE) is a pathological condition that develops as a result of the intravenous use of a drug called Krokodil containing desomorphine, made in the artisanal conditions using codeine-containing drugs, organic solvents (gasoline), iodine and red phosphorus. This disease is more often observed in the CIS countries. In addition to the acute and chronic pathological conditions with the damage to various organs, the use of Krokodil is characterized by pronounced extrapyramidal manifestations in the form of dystonia, parkinsonism, postural disorders, as well as the occurrence of cognitive and affective disorders.
Aims: To find the clinical and neuroimaging features of toxic desomorphine encephalopathy, as well as possible methods of its treatment.
Methods: A clinical analysis of the medical documentation of 21 TDE patients (11 women and 10 men) with a history of the use of Krokodil was carried out, the patients had been under observation from 2014 to 2021. All the patients underwent a clinical physical and neurological examination, 14 of them underwent neuroimaging (brain MRI and/or MSCT). The observation of these patients revealed a number of characteristic clinical and neuroimaging features inherent in the majority of drug addicts.
Results: The clinical picture of patients with TDE was dominated by movement disorders. All the patients had pronounced postural disorders and gait disturbance. Parkinsonism was observed in 20 of 21 patients. The hyperkinetic syndrome was presented in 17 patients (80.9%) and was manifested by dystonia of various localization with polymorphic manifestations. The brain MRI data taken from the Krokodil users for 3 years were characterized by symmetrical focal changes in the basal ganglia, brainstem, cerebellum and internal capsule of the thalamus in the form of an increase in the intensity of the MR signal in the T1 mode and attenuation in the T2-weighted images mode (7 of 11 cases), with the subsequent regression of these characteristics based on the results of the subsequent MRI studies.
Conclusion: The study results have revealed the clinical manifestations characteristic of TDE polymorphic extrapyramidal disorders, as well as neuroimaging changes reflecting these data.
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Chen L, Wu H, Li Y, Feng X, Zhu S, Xie K, Wu X, Sun Z, Shu G, Wang S, Gao P, Zhu X, Zhu C, Jiang Q, Wang L. Corticotropin-releasing factor receptor type 2 in the midbrain critically contributes to the hedonic feeding behavior of mice under heat stress. Biochem Biophys Res Commun 2022; 602:77-83. [DOI: 10.1016/j.bbrc.2022.02.109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2021] [Revised: 01/23/2022] [Accepted: 02/26/2022] [Indexed: 11/26/2022]
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21
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Soto-Montenegro ML, García-Vázquez V, Lamanna-Rama N, López-Montoya G, Desco M, Ambrosio E. Neuroimaging reveals distinct brain glucose metabolism patterns associated with morphine consumption in Lewis and Fischer 344 rat strains. Sci Rep 2022; 12:4643. [PMID: 35301397 PMCID: PMC8931060 DOI: 10.1038/s41598-022-08698-9] [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] [Received: 04/28/2021] [Accepted: 03/08/2022] [Indexed: 11/14/2022] Open
Abstract
Vulnerability to addiction may be given by the individual's risk of developing an addiction during their lifetime. A challenge in the neurobiology of drug addiction is understanding why some people become addicted to drugs. Here, we used positron emission tomography (PET) and statistical parametric mapping (SPM) to evaluate changes in brain glucose metabolism in response to chronic morphine self-administration (MSA) in two rat strains with different vulnerability to drug abuse, Lewis (LEW) and Fischer 344 (F344). Four groups of animals were trained to self-administer morphine or saline for 15 days. 2-deoxy-2-[18F]-fluoro-d-glucose (FDG)-PET studies were performed on the last day of MSA (acquisition phase) and after 15 days of withdrawal. PET data were analyzed using SPM12. LEW-animals self-administered more morphine injections per session than F344-animals. We found significant brain metabolic differences between LEW and F344 strains in the cortex, hypothalamus, brainstem, and cerebellum. In addition, the different brain metabolic patterns observed after the MSA study between these rat strains indicate differences in the efficiency of neural substrates to translate the drug effects, which could explain the differences in predisposition to morphine abuse between one individual and another. These findings have important implications for the use of these rat strains in translational morphine and opiate research.
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Affiliation(s)
- Mª Luisa Soto-Montenegro
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain. .,CIBER de Salud Mental (CIBERSAM), Madrid, Spain. .,Laboratorio de Imagen, Medicina Experimental, Hospital General Universitario Gregorio Marañón, Dr. Esquerdo, 46, 28007, Madrid, Spain.
| | | | - Nicolás Lamanna-Rama
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.,Departamento de Bioingeniería E Ingeniería Aeroespacial, Universidad Carlos III de Madrid, Madrid, Spain
| | - Gonzalo López-Montoya
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain.,Departamento de Psicobiología, Facultad de Psicología, Universidad de Educación Nacional a Distancia (UNED), Madrid, Spain
| | - Manuel Desco
- Instituto de Investigación Sanitaria Gregorio Marañón, Madrid, Spain. .,CIBER de Salud Mental (CIBERSAM), Madrid, Spain. .,Departamento de Bioingeniería E Ingeniería Aeroespacial, Universidad Carlos III de Madrid, Madrid, Spain. .,Centro Nacional de Investigaciones Cardiovasculares, CNIC, Madrid, Spain. .,Laboratorio de Imagen, Medicina Experimental, Hospital General Universitario Gregorio Marañón, Dr. Esquerdo, 46, 28007, Madrid, Spain.
| | - Emilio Ambrosio
- Departamento de Psicobiología, Facultad de Psicología, Universidad de Educación Nacional a Distancia (UNED), Madrid, Spain. .,Laboratorio de Imagen, Medicina Experimental, Hospital General Universitario Gregorio Marañón, Dr. Esquerdo, 46, 28007, Madrid, Spain.
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22
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Context evoked morphine conditioned effects can be equivalent to morphine induced drug effects in terms of behavioral response and ERK activation in reward associated subcortical brain structures. Pharmacol Biochem Behav 2022; 214:173356. [PMID: 35181379 DOI: 10.1016/j.pbb.2022.173356] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/22/2021] [Revised: 02/09/2022] [Accepted: 02/10/2022] [Indexed: 12/29/2022]
Abstract
Conditioned drug cues can evoke brief drug-like responses. In this report we show that using brief test sessions, contextual cues can induce conditioned hyperlocomotion and ERK responses equivalent to morphine induced responses. To assess acute unconditioned effects, rats that received morphine (MOR-1) or vehicle (VEH-1), were immediately placed onto an arena for a 5-min locomotion recording session after which ERK was measured in the ventral tegmental area (VTA) and nucleus accumbens (NAc). There were no differences in locomotion between the groups. However, the MOR-1 group had strong ERK activation in VTA and NAc. To assess MOR-conditioned effects, a chronic phase was carried out according to a Pavlovian conditioning protocol. There were two MOR paired groups (MORP), one MOR unpaired (MOR-UP) group and two VEH groups. The treatments were administered over 5 daily five minute test sessions. The final conditioning test was on day 6, in which one of the MOR-P groups and one of the VEH groups received VEH (MOR-P/VEH-6 and VEH/VEH-6, respectively). The other MOR-P group and VEH group received MOR (MOR-P/MOR; VEH/MOR-6, respectively). The MOR-UP group received VEH (MOR-UP/VEH-6). Rats received the treatments immediately prior to a 5-min arena test, and after the session ERK was measured. No morphine induced locomotor stimulation was observed on day 1 but on days 2 to 5, hyperlocomotion in both MOR-P groups occurred. On test day 6, the MOR-P/VEH-6 and the MOR-P/MOR-6 groups had comparable locomotor stimulant responses and similar ERK activity in the VTA and NAc. The MOR-UP group did not differ from the VEH group. We suggest that ERK activation evoked by acute morphine served as a Pavlovian unconditioned stimulus to enable the contextual cues to acquire morphine conditioned stimulus properties and increase the incentive value of the contextual cues.
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23
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Involvement of Hippocampal Astrocytic Connexin-43 in Morphine dependence. Physiol Behav 2022; 247:113710. [DOI: 10.1016/j.physbeh.2022.113710] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2021] [Revised: 01/17/2022] [Accepted: 01/18/2022] [Indexed: 11/20/2022]
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24
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Sun Z, Huai Z, He Q, Liu Z. A General Picture of Cucurbit[8]uril Host-Guest Binding. J Chem Inf Model 2021; 61:6107-6134. [PMID: 34818004 DOI: 10.1021/acs.jcim.1c01208] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Describing, understanding, and designing complex interaction networks within macromolecular systems remain challenging in modern chemical research. Host-guest systems, despite their relative simplicity in both the structural feature and interaction patterns, still pose problems in theoretical modeling. The barrel-shaped supramolecular container cucurbit[8]uril (CB8) shows promising functionalities in various areas, e.g., catalysis and molecular recognition. It can stably coordinate a series of structurally diverse guests with high affinities. In this work, we examine the binding of seven commonly abused drugs to the CB8 host, aiming at providing a general picture of CB8-guest binding. Extensive sampling of the configurational space of these host-guest systems is performed, and the binding pathway and interaction patterns of CB8-guest complexes are investigated. A thorough comparison of widely used fixed-charge models for drug-like molecules is presented. Iterative refitting of the atomic charges suggests significant conformation dependence of charge generation. The initial model generated at the original conformation could be inaccurate for new conformations explored during conformational search, and the newly fitted charge set improves the prediction-experiment correlation significantly. Our investigations of the configurational space of CB8-drug complexes suggest that the host-guest interactions are more complex than expected. Despite the structural simplicities of these molecules, the conformational fluctuations of the host and the guest molecules and orientations of functional groups lead to the existence of an ensemble of binding modes. The insights of the binding thermodynamics, performance of fixed-charge models, and binding patterns of the CB8-guest systems are useful for studying and elucidating the binding mechanism of other host-guest complexes.
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Affiliation(s)
- Zhaoxi Sun
- Beijing National Laboratory for Molecular Sciences, Institute of Theoretical and Computational Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Zhe Huai
- XtalPi-AI Research Center (XARC), 9F, Tower A, Dongsheng Building, No. 8, Zhongguancun East Road, Haidian District, Beijing 100083, P.R. China
| | - Qiaole He
- AI Department of Enzymaster (Ningbo) Bio-Engineering Co., Ltd., North Century Avenue 333, Ningbo 315100, China
| | - Zhirong Liu
- Beijing National Laboratory for Molecular Sciences, Institute of Theoretical and Computational Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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25
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Li X, Xiong J, Zhang B, Zhangsun D, Luo S. α-Conotoxin TxIB Inhibits Development of Morphine-Induced Conditioned Place Preference in Mice via Blocking α6β2* Nicotinic Acetylcholine Receptors. Front Pharmacol 2021; 12:772990. [PMID: 34925031 PMCID: PMC8681874 DOI: 10.3389/fphar.2021.772990] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2021] [Accepted: 11/03/2021] [Indexed: 11/28/2022] Open
Abstract
Morphine, the main component of opium, is a commonly used analgesic in clinical practice, but its abuse potential limits its clinical application. Nicotinic acetylcholine receptors (nAChRs) in the mesolimbic circuitry play an important role in the rewarding effects of abused drugs. Previous studies have showed that α6β2* (* designated other subunits) nAChRs are mainly distributed in dopaminergic neurons in the midbrain area, which regulates the release of dopamine. So α6β2* nAChRs are regarded as a new target to treat drug abuse. α-Conotoxin TxIB was discovered in our lab, which is the most selective ligand to inhibit α6β2* nAChRs only. Antagonists of α6β2* nAChRs decreased nicotine, cocaine, and ethanol rewarding effects previously. However, their role in morphine addiction has not been reported so far. Thus, it is worth evaluating the effect of α-conotoxin TxIB on the morphine-induced conditioned place preference (CPP) and its behavioral changes in mice. Our results showed that TxIB inhibited expression and acquisition of morphine-induced CPP and did not produce a rewarding effect by itself. Moreover, repeated injections of TxIB have no effect on learning, memory, locomotor activity, and anxiety-like behavior. Therefore, blocking α6/α3β2β3 nAChRs inhibits the development of morphine-induced CPP. α-Conotoxin TxIB may be a potentially useful compound to mitigate the acquisition and/or retention of drug-context associations.
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Affiliation(s)
- Xiaodan Li
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou, China
| | - Jian Xiong
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou, China
| | - Baojian Zhang
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou, China
| | - Dongting Zhangsun
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou, China.,Medical School, Guangxi University, Nanning, China
| | - Sulan Luo
- Key Laboratory of Tropical Biological Resources of Ministry of Education, School of Pharmaceutical Sciences, Hainan University, Haikou, China.,Medical School, Guangxi University, Nanning, China
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26
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Zhou Q, Zhang Z, Long S, Li W, Wang B, Liang N. Opioids in cancer: The κ‑opioid receptor (Review). Mol Med Rep 2021; 25:44. [PMID: 34878160 PMCID: PMC8674701 DOI: 10.3892/mmr.2021.12560] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Accepted: 11/17/2021] [Indexed: 12/24/2022] Open
Abstract
The κ‑opioid receptor (KOR) is one of the primary receptors of opioids and serves a vital role in the regulation of pain, anesthesia, addiction and other pathological and physiological processes. KOR is associated with several types of cancer and may influence cancer progression. It has been proposed that KOR may represent a new tumor molecular marker and provide a novel basis for molecular targeted therapies for cancer. However, the association between KOR and cancer remains to be explored comprehensively. The present review introduces KOR and its association with different types of cancer. Improved understanding of KOR may facilitate development of novel antitumor therapies.
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Affiliation(s)
- Qier Zhou
- Department of Anesthesiology, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Zhiwei Zhang
- Key Laboratory of Cancer Cellular and Molecular Pathology, Cancer Research Institute of Hengyang Medical College, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Songkai Long
- Department of Anesthesiology, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Wanjun Li
- Department of Anesthesiology, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Baiyun Wang
- Department of Anesthesiology, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, P.R. China
| | - Na Liang
- Department of Anesthesiology, The Affiliated Nanhua Hospital, Hengyang Medical School, University of South China, Hengyang, Hunan 421001, P.R. China
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27
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Alshehri FS, Alghamdi BS, Hakami AY, Alshehri AA, Althobaiti YS. Melatonin attenuates morphine-induced conditioned place preference in Wistar rats. Brain Behav 2021; 11:e2397. [PMID: 34710287 PMCID: PMC8671767 DOI: 10.1002/brb3.2397] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 08/04/2021] [Accepted: 09/06/2021] [Indexed: 02/03/2023] Open
Abstract
PURPOSE Morphine is the predominantly used drug for postoperative and cancer pain management. However, the abuse potential of morphine is the primary disadvantage of using opioids in pain management. Melatonin is a neurohormone synthesized in the pineal gland and is involved in circadian rhythms in mammals, as well as other physiological functions. Melatonin provenly attenuates alcohol-seeking and relapse behaviors in rats. Therefore, we aimed to investigate the involvement of the melatonergic system in attenuating morphine dependence. MATERIALS AND METHODS Male Wistar rats were divided into three groups: control, morphine, and morphine + melatonin. Animals were habituated for 3 days, and the initial preference was evaluated. Following the initial preference, the control group received the vehicle and was placed for a 45-min session in the assigned chamber every day, alternating between the two chambers, for 8 days. The morphine group received a morphine injection (5 mg/kg, IP) and was placed for a 45-min session in the white chamber, for a total of four sessions. The morphine + melatonin group received the morphine injection (5 mg/kg, IP) for a total of four sessions over an 8-day period. In the posttest session, the control and morphine groups received a vehicle injection 30 min before placement in the conditioned place preference (CPP). The morphine + melatonin group received a single injection of melatonin (50 mg/kg, IP) 30 min before the preference test. RESULTS Statistical analysis revealed that repeated administration of morphine for four sessions produced a significant increase in the CPP score in the morphine group compared to the control group. However, a single melatonin injection administered 30 min before the posttest attenuated morphine-seeking behavior and reduced morphine-induced place preference. CONCLUSION These findings provide novel evidence for the role of the melatonergic system as a potential target in modulating morphine-seeking behavior.
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Affiliation(s)
- Fahad S Alshehri
- Department of Pharmacology and Toxicology, College of Pharmacy, Umm Al-Qura University, Makkah, Saudi Arabia
| | - Badrah S Alghamdi
- Department of Physiology, Neuroscience Unit, Faculty of Medicine, King Abdulaziz University, Jeddah, Saudi Arabia.,Pre-Clinical Research Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Alqassem Y Hakami
- College of Medicine, King Saud bin Abdulaziz University for Health Sciences, Jeddah, Saudi Arabia.,King Abdullah International Medical Research Center, Jeddah, Saudi Arabia
| | - Abdullah A Alshehri
- Pre-Clinical Research Unit, King Fahd Medical Research Center, King Abdulaziz University, Jeddah, Saudi Arabia
| | - Yusuf S Althobaiti
- Department of Pharmacology and Toxicology, College of Pharmacy, Taif University, P.O. Box 11099, Taif, 21944, Saudi Arabia.,College of Pharmacy, Addiction and Neuroscience Research Unit, Taif University, Taif, 21944, Saudi Arabia
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28
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Fu X, Chen T, Cai J, Liu B, Zeng Y, Zhang X. The Microbiome-Gut-Brain Axis, a Potential Therapeutic Target for Substance-Related Disorders. Front Microbiol 2021; 12:738401. [PMID: 34690981 PMCID: PMC8526971 DOI: 10.3389/fmicb.2021.738401] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Accepted: 08/31/2021] [Indexed: 12/31/2022] Open
Abstract
Substance addiction is a complex worldwide public health problem. It endangers both personal life and social stability, causing great loss on economy. Substance-related disorder is considered to be a complicated chronic brain disorder. It resulted from interactions among pharmacological properties of addictive substances, individual susceptibility, and social–environmental factors. Unfortunately, there is still no ideal treatment for this disorder. Recent lines of evidence suggest that gut microbiome may play an important role in the pathogenesis of neuropsychiatric disorders, including substance-related disorders. This review summarizes the research on the relationship between gut microbiome and substance-related disorders, including different types of substance, different individual susceptibility, and the occurrence and development of substance-induced mental disorders. We also discuss the potentiation of gut microbiome in the treatment of substance-related disorders, especially in the treatment of substance-induced mental disorders and manipulation on individuals’ responsiveness to addictive substances.
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Affiliation(s)
- Xuan Fu
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center on Mental Disorders, Changsha, China.,National Technology Institute on Mental Disorders, Changsha, China.,Hunan Medical Center for Mental Health, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China.,Mental Health Institute of Central South University, Changsha, China
| | - Ti Chen
- Department of Laboratory Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Jingda Cai
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center on Mental Disorders, Changsha, China.,National Technology Institute on Mental Disorders, Changsha, China.,Hunan Medical Center for Mental Health, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China.,Mental Health Institute of Central South University, Changsha, China
| | - Bo Liu
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center on Mental Disorders, Changsha, China.,National Technology Institute on Mental Disorders, Changsha, China.,Hunan Medical Center for Mental Health, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China.,Mental Health Institute of Central South University, Changsha, China
| | - Yaohui Zeng
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center on Mental Disorders, Changsha, China.,National Technology Institute on Mental Disorders, Changsha, China.,Hunan Medical Center for Mental Health, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China.,Mental Health Institute of Central South University, Changsha, China
| | - Xiaojie Zhang
- Department of Psychiatry, The Second Xiangya Hospital, Central South University, Changsha, China.,National Clinical Research Center on Mental Disorders, Changsha, China.,National Technology Institute on Mental Disorders, Changsha, China.,Hunan Medical Center for Mental Health, Changsha, China.,Hunan Key Laboratory of Psychiatry and Mental Health, Changsha, China.,Mental Health Institute of Central South University, Changsha, China
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29
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Saeedi N, Darvishmolla M, Tavassoli Z, Davoudi S, Heysieattalab S, Hosseinmardi N, Janahmadi M, Behzadi G. The role of hippocampal glial glutamate transporter (GLT-1) in morphine-induced behavioral responses. Brain Behav 2021; 11:e2323. [PMID: 34363739 PMCID: PMC8442590 DOI: 10.1002/brb3.2323] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 07/18/2021] [Accepted: 07/19/2021] [Indexed: 11/07/2022] Open
Abstract
Opioid abuse modifies synaptic plasticity, which leads to behavioral changes, such as morphine dependence, but the mechanism remains poorly understood. Glial cells play an important role in the modulation of synaptic plasticity and are involved in addictive-like behaviors. The indisputable role of glutamate in opiate addiction has been shown. Astrocytes, a type of glial cells, which are integral functional elements of synapses, modulate the concentration of glutamate in the synaptic space. One of the most important mechanisms for glutamate concentration regulation is its uptake from the synaptic cleft. In this study, we evaluated the role of hippocampal glial glutamate transporter (GLT-1) in morphine dependence. Male rats received subcutaneous (s.c.) morphine sulfate (10 mg/kg) at an interval of 12 h for 9 days. In order to activate GLT-1, animals received an intrahippocampal injection of ceftriaxone (0.5 mmol/0.5 μl) in the CA1 region of the hippocampus, 30 min before each morphine administration. Rats were assessed for morphine dependence by monitoring naloxone hydrochloride-induced morphine withdrawal. Our results showed that hippocampal microinjection of ceftriaxone, as an activator of GLT-1, reduced some signs of morphine withdrawal, such as activity, diarrhea, head tremor, freezing, and ptosis. It seems that hippocampal GLT-1 can be affected by chronic morphine administration and involved in morphine dependence. Therefore, its activation may reduce morphine side effects by reducing hippocampal glutamate.
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Affiliation(s)
- Negin Saeedi
- Department of PhysiologyMedical SchoolShahid Beheshti University of Medical SciencesTehranIran
- Neuroscience Research CenterShahid Beheshti University of Medical SciencesTehranIran
| | - Mahgol Darvishmolla
- Department of PhysiologyMedical SchoolShahid Beheshti University of Medical SciencesTehranIran
- Neuroscience Research CenterShahid Beheshti University of Medical SciencesTehranIran
| | - Zohreh Tavassoli
- Department of PhysiologyMedical SchoolShahid Beheshti University of Medical SciencesTehranIran
- Neuroscience Research CenterShahid Beheshti University of Medical SciencesTehranIran
| | - Shima Davoudi
- Department of PhysiologyMedical SchoolShahid Beheshti University of Medical SciencesTehranIran
| | | | - Narges Hosseinmardi
- Department of PhysiologyMedical SchoolShahid Beheshti University of Medical SciencesTehranIran
- Neuroscience Research CenterShahid Beheshti University of Medical SciencesTehranIran
| | - Mahyar Janahmadi
- Department of PhysiologyMedical SchoolShahid Beheshti University of Medical SciencesTehranIran
- Neuroscience Research CenterShahid Beheshti University of Medical SciencesTehranIran
| | - Gila Behzadi
- Department of PhysiologyMedical SchoolShahid Beheshti University of Medical SciencesTehranIran
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30
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Effect of histone acetylation on maintenance and reinstatement of morphine-induced conditioned place preference and ΔFosB expression in the nucleus accumbens and prefrontal cortex of male rats. Behav Brain Res 2021; 414:113477. [PMID: 34302880 DOI: 10.1016/j.bbr.2021.113477] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2021] [Revised: 07/10/2021] [Accepted: 07/16/2021] [Indexed: 01/14/2023]
Abstract
Recently, epigenetic mechanisms are considered as the new potential targets for addiction treatment. This research was designed to explore the effect of histone acetylation on ΔFosB gene expression in morphine-induced conditioned place preference (CPP) in male rats. CPP was induced via morphine injection (5 mg/kg) for three consecutive days. Animals received low-dose theophylline (LDT) or Suberoylanilide Hydroxamic acid (SAHA), as an histone deacetylase (HDAC) activator or inhibitor, respectively, and a combination of both in subsequent extinction days. Following extinction, a priming dose of morphine (1 mg/kg) was administered to induce reinstatement. H4 acetylation and ΔFosB expression in the nucleus accumbens (NAc) and medial prefrontal cortex (mPFC) were assessed on the last day of extinction and the following CPP reinstatement. Our results demonstrated that daily administration of SAHA (25 mg/kg; i.p.), facilitated morphine-extinction and decreased CPP score in reinstatement of place preference. Conversely, injections of LDT (20 mg/kg; i.p.) prolonged extinction in animals. Co-administration of LDT and SAHA on extinction days counterbalanced each other, such that maintenance and reinstatement were no different than the control group. The gene expression of ΔFosB was increased by SAHA in NAc and mPFC compared to the control group. Administration of SAHA during extinction days, also altered histone acetylation in the NAc and mPFC on the last day of extinction, but not on reinstatement day. Collectively, administration of SAHA facilitated extinction and reduced reinstatement of morphine-induced CPP in rats. This study confirms the essential role of epigenetic mechanisms, specifically histone acetylation, in regulating drug-induced plasticity and seeking behaviors.
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The Paradoxical Effect Hypothesis of Abused Drugs in a Rat Model of Chronic Morphine Administration. J Clin Med 2021; 10:jcm10153197. [PMID: 34361981 PMCID: PMC8348660 DOI: 10.3390/jcm10153197] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2021] [Revised: 07/13/2021] [Accepted: 07/19/2021] [Indexed: 12/22/2022] Open
Abstract
A growing body of studies has recently shown that abused drugs could simultaneously induce the paradoxical effect in reward and aversion to influence drug addiction. However, whether morphine induces reward and aversion, and which neural substrates are involved in morphine’s reward and aversion remains unclear. The present study first examined which doses of morphine can simultaneously produce reward in conditioned place preference (CPP) and aversion in conditioned taste aversion (CTA) in rats. Furthermore, the aversive dose of morphine was determined. Moreover, using the aversive dose of 10 mg/kg morphine tested plasma corticosterone (CORT) levels and examined which neural substrates were involved in the aversive morphine-induced CTA on conditioning, extinction, and reinstatement. Further, we analyzed c-Fos and p-ERK expression to demonstrate the paradoxical effect—reward and aversion and nonhomeostasis or disturbance by morphine-induced CTA. The results showed that a dose of more than 20 mg/kg morphine simultaneously induced reward in CPP and aversion in CTA. A dose of 10 mg/kg morphine only induced the aversive CTA, and it produced higher plasma CORT levels in conditioning and reacquisition but not extinction. High plasma CORT secretions by 10 mg/kg morphine-induced CTA most likely resulted from stress-related aversion but were not a rewarding property of morphine. For assessments of c-Fos and p-ERK expression, the cingulate cortex 1 (Cg1), prelimbic cortex (PrL), infralimbic cortex (IL), basolateral amygdala (BLA), nucleus accumbens (NAc), and dentate gyrus (DG) were involved in the morphine-induced CTA, and resulted from the aversive effect of morphine on conditioning and reinstatement. The c-Fos data showed fewer neural substrates (e.g., PrL, IL, and LH) on extinction to be hyperactive. In the context of previous drug addiction data, the evidence suggests that morphine injections may induce hyperactivity in many neural substrates, which mediate reward and/or aversion due to disturbance and nonhomeostasis in the brain. The results support the paradoxical effect hypothesis of abused drugs. Insight from the findings could be used in the clinical treatment of drug addiction.
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Wang YC, Chiu WC, Cheng CN, Lee C, Chih Wei Huang A. Examination of neuroinflammatory cytokine interleukin-1 beta expression in the medial prefrontal cortex, amygdala, and hippocampus for the paradoxical effects of reward and aversion induced by morphine. Neurosci Lett 2021; 760:136076. [PMID: 34153368 DOI: 10.1016/j.neulet.2021.136076] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Revised: 06/14/2021] [Accepted: 06/16/2021] [Indexed: 10/21/2022]
Abstract
A growing body of evidence has shown that abused drugs could simultaneously induce the paradoxical effect-reward and aversion. Moreover, the medial prefrontal cortex (mPFC), amygdala, and hippocampus were involved in this paradoxical effect by abused drugs. However, no research examined whether neuroinflammatory changes in the mPFC [including cingulate cortex area 1 (Cg1); prelimbic cortex (PrL); infralimbic cortex (IL)], basolateral amygdala, and hippocampus [e.g., CA1, CA2, CA3, and dentate gyrus (DG)] after morphine-induced reward in conditioned place preference (CPP) and aversion in conditioned taste aversion (CTA). The results showed that after morphine administration, the consumption of a 0.1% saccharin solution decreased; the mean time spent in the morphine-paired side compartment of the CPP box increased, indicating that morphine simultaneously induced the paradoxical effects of reward and aversion. The PrL and IL of the mPFC, the BLA of the amygdala, the CA1, CA2, CA3, and DG of the hippocampus but not the Cg1 presented hyperactive IL-1β expression in response to morphine's aversion and reward. The mPFC, amygdala, and hippocampus may appear neuroinflammation activity following morphine-induced paradoxical effect-reward in CPP and aversion in CTA. The present data may provide a better understanding of the relationship between neuroinflammation and morphine addiction.
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Affiliation(s)
- Ying-Chou Wang
- Department of Clinical Psychology, Fu Jen Catholic University, New Taipei City 24205, Taiwan
| | - Wei-Che Chiu
- Department of Psychiatry, Cathay General Hospital, Taipei, Taiwan; School of Medicine, Fu Jen Catholic University, Taipei, Taiwan
| | - Cai-N Cheng
- Department of Psychology, Fo Guang University, Yilan County 26247, Taiwan; Department of Life Sciences, National Central University, Jhong-Li District, Taoyuan City 32001, Taiwan
| | - Chiang Lee
- Department of Psychology, Fo Guang University, Yilan County 26247, Taiwan
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Jiménez-González A, Gómez-Acevedo C, Ochoa-Aguilar A, Chavarría A. The Role of Glia in Addiction: Dopamine as a Modulator of Glial Responses in Addiction. Cell Mol Neurobiol 2021; 42:2109-2120. [PMID: 34057683 DOI: 10.1007/s10571-021-01105-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Accepted: 05/19/2021] [Indexed: 02/07/2023]
Abstract
Addiction is a chronic and potentially deadly disease considered a global health problem. Nevertheless, there is still no ideal treatment for its management. The alterations in the reward system are the most known pathophysiological mechanisms. Dopamine is the pivotal neurotransmitter involved in neuronal drug reward mechanisms and its neuronal mechanisms have been intensely investigated in recent years. However, neuroglial interactions and their relation to drug addiction development and maintenance of drug addiction have been understudied. Many reports have found that most neuroglial cells express dopamine receptors and that dopamine activity may induce neuroimmunomodulatory effects. Furthermore, current research has also shown that pro- and anti-inflammatory molecules modulate dopaminergic neuron activity. Thus, studying the immune mechanisms of dopamine associated with drug abuse is vital in researching new pathophysiological mechanisms and new therapeutic targets for addiction management.
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Affiliation(s)
- Ariadna Jiménez-González
- Laboratorio de Biomembranas, Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Claudia Gómez-Acevedo
- Laboratorio de Biomembranas, Departamento de Farmacología, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Abraham Ochoa-Aguilar
- Plan de Estudios Combinados en Medicina, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico
| | - Anahí Chavarría
- Unidad de Investigación en Medicina Experimental, Facultad de Medicina, Universidad Nacional Autónoma de México, Mexico City, Mexico.
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Wang T, Zhu X, Yi H, Gu J, Liu S, Izenwasser S, Lemmon VP, Roy S, Hao S. Viral vector-mediated gene therapy for opioid use disorders. Exp Neurol 2021; 341:113710. [PMID: 33781732 DOI: 10.1016/j.expneurol.2021.113710] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Revised: 02/26/2021] [Accepted: 03/24/2021] [Indexed: 12/13/2022]
Abstract
Chronic exposure to opioids typically results in adverse consequences. Opioid use disorder (OUD) is a disease of the CNS with behavioral, psychological, neurobiological, and medical manifestations. OUD induces a variety of changes of neurotransmitters/neuropeptides in the nervous system. Existing pharmacotherapy, such as opioid maintenance therapy (OMT) is the mainstay for the treatment of OUD, however, current opioid replacement therapy is far from effective for the majority of patients. Pharmacological therapy for OUD has been challenging for many reasons including debilitating side-effects. Therefore, developing an effective, non-pharmacological approach would be a critical advancement in improving and expanding treatment for OUD. Viral vector mediated gene therapy provides a potential new approach for treating opioid abused patients. Gene therapy can supply targeting gene products directly linked to the mechanisms of OUD to restore neurotransmitter and/or neuropeptides imbalance, and avoid the off-target effects of systemic administration of drugs. The most commonly used viral vectors in rodent studies of treatment of opioid-used disorder are based on recombinant adenovirus (AV), adeno-associated virus (AAV), lentiviral (LV) vectors, and herpes simplex virus (HSV) vectors. In this review, we will focus on the recent progress of viral vector mediated gene therapy in OUD, especially morphine tolerance and withdrawal.
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Affiliation(s)
- Tao Wang
- Department of Anesthesiology, Perioperative Medicine & Pain Management, University of Miami Miller School of Medicine, Miami, FL, United States of America
| | - Xun Zhu
- Department of Anesthesiology, Perioperative Medicine & Pain Management, University of Miami Miller School of Medicine, Miami, FL, United States of America
| | - Hyun Yi
- Department of Anesthesiology, Perioperative Medicine & Pain Management, University of Miami Miller School of Medicine, Miami, FL, United States of America
| | - Jun Gu
- Department of Anesthesiology, Perioperative Medicine & Pain Management, University of Miami Miller School of Medicine, Miami, FL, United States of America
| | - Shue Liu
- Department of Anesthesiology, Perioperative Medicine & Pain Management, University of Miami Miller School of Medicine, Miami, FL, United States of America
| | - Sari Izenwasser
- Department of Psychiatry & Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL, United States of America
| | - Vance P Lemmon
- Department of Neurological Surgery, University of Miami Miller School of Medicine, Miami, FL, United States of America
| | - Sabita Roy
- Department of Surgery, University of Miami Miller School of Medicine, Miami, FL, United States of America
| | - Shuanglin Hao
- Department of Anesthesiology, Perioperative Medicine & Pain Management, University of Miami Miller School of Medicine, Miami, FL, United States of America.
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Yazdanfar N, Ali Mard S, Mahmoudi J, Bakhtiari N, Sarkaki A, Farnam A. Maternal Morphine Exposure and Post-Weaning Social Isolation Impair Memory and Ventral Striatum Dopamine System in Male Offspring: Is an Enriched Environment Beneficial? Neuroscience 2021; 461:80-90. [PMID: 33662528 DOI: 10.1016/j.neuroscience.2021.02.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 02/18/2021] [Accepted: 02/19/2021] [Indexed: 12/19/2022]
Abstract
Maternal opioids abuse has some deleterious consequences on next generations. Besides, children's rearing conditions can affect the behavioral states and brain plasticity in their later life. In the present study, we investigated the effects of maternal morphine (MOR) treatment and post-weaning rearing conditions on memory, pain threshold, and the ventral striatum dopaminergic activity in male offspring. Female Wistar rats were treated twice daily either with escalating doses of MOR or with normal saline (NS) one week before mating, during pregnancy and lactation. After weaning, the male pups were assigned to six groups and then raised for an 8-week period under three different conditions: standard (STD), isolated (ISO) or enriched environment (EE). The behavioral tests, including passive avoidance task, novel object recognition, and tail-flick test, were also performed. Moreover, the ventral striatum dopamine's content (DA), mRNA expressions of dopamine receptor 1(D1R) and dopamine receptor 2 (D2R), and dopamine transporter (DAT) were evaluated. The obtained data showed that maternal MOR exposure and post-weaning social isolation could dramatically impair memory in offspring, while EE could reverse these adverse outcomes. Moreover, results of tail flick latency indicated the increased pain threshold in EE animals. At molecular level, maternal MOR injections and social isolation reduced DA levels and altered expressions of D1R, D2R, and DAT within the ventral striatum of these male offspring. However, post-weaning EE partially buffered these changes. Our finding signified the effects of maternal MOR exposure and social isolation on the behaviors and neurochemistry of brain in next generation, and it also provided evidence on reversibility of these alterations following EE.
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Affiliation(s)
- Neda Yazdanfar
- Department of Neuroscience and Cognition, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran; Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Seyed Ali Mard
- The Persian Gulf Physiology Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Department of Physiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Javad Mahmoudi
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nima Bakhtiari
- Pain Research Center, Imam Khomeini Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Alireza Sarkaki
- The Persian Gulf Physiology Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Department of Physiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Alireza Farnam
- Research Center of Psychiatry and Behavioral Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
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Activation of proline biosynthesis is critical to maintain glutamate homeostasis during acute methamphetamine exposure. Sci Rep 2021; 11:1422. [PMID: 33446840 PMCID: PMC7809342 DOI: 10.1038/s41598-020-80917-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2020] [Accepted: 12/30/2020] [Indexed: 01/29/2023] Open
Abstract
Methamphetamine (METH) is a highly addictive psychostimulant that causes long-lasting effects in the brain and increases the risk of developing neurodegenerative diseases. The cellular and molecular effects of METH in the brain are functionally linked to alterations in glutamate levels. Despite the well-documented effects of METH on glutamate neurotransmission, the underlying mechanism by which METH alters glutamate levels is not clearly understood. In this study, we report an essential role of proline biosynthesis in maintaining METH-induced glutamate homeostasis. We observed that acute METH exposure resulted in the induction of proline biosynthetic enzymes in both undifferentiated and differentiated neuronal cells. Proline level was also increased in these cells after METH exposure. Surprisingly, METH treatment did not increase glutamate levels nor caused neuronal excitotoxicity. However, METH exposure resulted in a significant upregulation of pyrroline-5-carboxylate synthase (P5CS), the key enzyme that catalyzes synthesis of proline from glutamate. Interestingly, depletion of P5CS by CRISPR/Cas9 resulted in a significant increase in glutamate levels upon METH exposure. METH exposure also increased glutamate levels in P5CS-deficient proline-auxotropic cells. Conversely, restoration of P5CS expression in P5CS-deficient cells abrogated the effect of METH on glutamate levels. Consistent with these findings, P5CS expression was significantly enhanced in the cortical brain region of mice administered with METH and in the slices of cortical brain tissues treated with METH. Collectively, these results uncover a key role of P5CS for the molecular effects of METH and highlight that excess glutamate can be sequestered for proline biosynthesis as a protective mechanism to maintain glutamate homeostasis during drug exposure.
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Berger AA, Urits I, Hasoon J, Kaye AD, Viswanath O, Eskander J. Pain Alleviation and Opioid Weaning in an 80-Year-Old with Chronic Foot Pain Following Injection Therapy with Perineural Dexmedetomidine and Dexamethasone. Surg J (N Y) 2021; 7:e1-e2. [PMID: 33437869 PMCID: PMC7790527 DOI: 10.1055/s-0040-1722176] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Accepted: 09/22/2020] [Indexed: 12/03/2022] Open
Abstract
Opiates are routinely used for chronic pain patients, and up to 44% of them will have a prescription for an opiate medication for pain alleviation. However, of the 76 million adults prescribed opiates for pain management, about 12% report misuse, and a large number of these may find themselves addicted to opioid medications. Opioid addiction is an ongoing epidemic, costing many lives. Withdrawal is very difficult. This requires providers to consider alternative analgesic plans and minimize opiate use. Here we report the use of a dexamethasone-dexmedetomidine combination for a regional nerve block in an elderly woman chronically treated with opiate medications who had previously failed opiate weaning. Following her nerve block, she was able to completely wean off of opioids and continues having good pain control with an opioid-free regimen.
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Affiliation(s)
- Amnon A Berger
- Department of Anesthesia, Critical Care, and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Ivan Urits
- Department of Anesthesia, Critical Care, and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Jamal Hasoon
- Department of Anesthesia, Critical Care, and Pain Medicine, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, Massachusetts
| | - Alan D Kaye
- Department of Anesthesiology, Louisiana State University Health Shreveport, Shreveport, Louisiana
| | - Omar Viswanath
- Valley Anesthesiology and Pain Consultants - Envision Physician Services, Phoenix, Arizona.,Department of Anesthesiology, University of Arizona College of Medicine - Phoenix, Phoenix, Arizona.,Department of Anesthesiology, Creighton University School of Medicine, Omaha, Nebraska
| | - Jonathan Eskander
- Anesthesiology and Pain Medicine, Portsmouth Anesthesia Associates, Portsmouth, Virginia
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Jiang C, Wang X, Le Q, Liu P, Liu C, Wang Z, He G, Zheng P, Wang F, Ma L. Morphine coordinates SST and PV interneurons in the prelimbic cortex to disinhibit pyramidal neurons and enhance reward. Mol Psychiatry 2021; 26:1178-1193. [PMID: 31413370 PMCID: PMC7985023 DOI: 10.1038/s41380-019-0480-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 06/28/2019] [Accepted: 07/09/2019] [Indexed: 12/21/2022]
Abstract
Opioids, such as morphine, are clinic analgesics which induce euphoria. Morphine exposure modifies the excitability and functional interactions between neurons, while the underlying cellular and molecular mechanisms, especially how morphine assembles heterogeneous interneurons (INs) in prelimbic cortex (PrL) to mediate disinhibition and reward, are not clear. Using approaches of optogenetics, electrophysiology, and cell type-specific RNA-seq, we show that morphine attenuates the inhibitory synaptic transmission from parvalbumin+ (PV)-INs onto pyramidal neurons in PrL via μ-opioid receptor (MOR) in PV-INs. Meanwhile, morphine enhances the inhibitory inputs from somatostatin+ (SST)-INs onto PV-INs, and thus disinhibits pyramidal neurons via δ-opioid receptor (DOR)-dependent Rac1 upregulation in SST-INs. We show that MOR in PV-INs is required for morphine-induced behavioral sensitization, while DOR as well as Rac1 activity in SST-INs is required for morphine-induced conditioned place preference and hyper-locomotion. These results reveal that SST- and PV-INs, functioning in PrL as a disinhibitory architecture, are coordinated by morphine via different opioid receptors to disinhibit pyramidal neurons and enhance reward.
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Affiliation(s)
- Changyou Jiang
- grid.8547.e0000 0001 0125 2443Department of Neurology, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, School of Basic Medical Sciences, Institutes of Brain Science and Zhongshan Hospital, Fudan University, 200032 Shanghai, China
| | - Xueying Wang
- grid.8547.e0000 0001 0125 2443Department of Neurology, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, School of Basic Medical Sciences, Institutes of Brain Science and Zhongshan Hospital, Fudan University, 200032 Shanghai, China
| | - Qiumin Le
- grid.8547.e0000 0001 0125 2443Department of Neurology, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, School of Basic Medical Sciences, Institutes of Brain Science and Zhongshan Hospital, Fudan University, 200032 Shanghai, China
| | - Peipei Liu
- grid.8547.e0000 0001 0125 2443Department of Neurology, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, School of Basic Medical Sciences, Institutes of Brain Science and Zhongshan Hospital, Fudan University, 200032 Shanghai, China
| | - Cao Liu
- grid.8547.e0000 0001 0125 2443Department of Neurology, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, School of Basic Medical Sciences, Institutes of Brain Science and Zhongshan Hospital, Fudan University, 200032 Shanghai, China
| | - Zhilin Wang
- grid.8547.e0000 0001 0125 2443Department of Neurology, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, School of Basic Medical Sciences, Institutes of Brain Science and Zhongshan Hospital, Fudan University, 200032 Shanghai, China
| | - Guanhong He
- grid.8547.e0000 0001 0125 2443Department of Neurology, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, School of Basic Medical Sciences, Institutes of Brain Science and Zhongshan Hospital, Fudan University, 200032 Shanghai, China
| | - Ping Zheng
- grid.8547.e0000 0001 0125 2443Department of Neurology, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, School of Basic Medical Sciences, Institutes of Brain Science and Zhongshan Hospital, Fudan University, 200032 Shanghai, China
| | - Feifei Wang
- Department of Neurology, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, School of Basic Medical Sciences, Institutes of Brain Science and Zhongshan Hospital, Fudan University, 200032, Shanghai, China.
| | - Lan Ma
- Department of Neurology, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, School of Basic Medical Sciences, Institutes of Brain Science and Zhongshan Hospital, Fudan University, 200032, Shanghai, China.
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Kim MS, Fan Y, Lee SM, Chang SC, Kim HK, Ryu Y, Steffensen SC, Yang CH, Kim HY. Role of the central amygdala in acupuncture inhibition of methamphetamine-induced behaviors in rats. Addict Biol 2021; 26:e12862. [PMID: 31997525 DOI: 10.1111/adb.12862] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2019] [Revised: 11/13/2019] [Accepted: 11/26/2019] [Indexed: 01/16/2023]
Abstract
Methamphetamine (METH) enhances dopamine (DA) transmission in the mesolimbic system implicated in its reinforcing effects. Our previous studies have shown that acupuncture attenuates drug-seeking behaviors by modulating GABAergic transmission in the ventral tegmental area and DA release in the nucleus accumbens (NAc) of the striatum. The effects of acupuncture on METH-induced behaviors and its mediation by neural pathways remain a relatively understudied area of research. The central amygdala (CeA) plays a critical role in physiological and behavioral responses to somatosensory and drug stimuli and has been implicated in negative reinforcement. Thus, we evaluated the role of the CeA in acupuncture effects on locomotor activity, positive affective states, and DA release in the NAc following acute administration of METH. Acupuncture at acupoint HT7 reduced locomotor activity, 50-kHz ultrasonic vocalizations (USVs), and NAc DA release following systemic injection of METH, which was prevented by electrolytic lesions or optogenetic inhibition of the CeA. Acupuncture alone excited CeA neurons and reversed the suppression of CeA neurons induced by METH. These results suggest that acupuncture can relieve psychomotor responses and positive affective states following METH by inhibiting NAc DA release and this effect is mediated by activation of CeA neurons.
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Affiliation(s)
- Mi Seon Kim
- College of Korean Medicine Daegu Haany University Daegu South Korea
| | - Yu Fan
- College of Korean Medicine Daegu Haany University Daegu South Korea
| | - Soo Min Lee
- College of Korean Medicine Daegu Haany University Daegu South Korea
| | - Su Chan Chang
- College of Korean Medicine Daegu Haany University Daegu South Korea
| | - Hyung Kyu Kim
- College of Korean Medicine Daegu Haany University Daegu South Korea
| | - Yeonhee Ryu
- Clinical Medicine Division Korea Institute of Oriental Medicine Daejeon South Korea
| | | | - Chae Ha Yang
- College of Korean Medicine Daegu Haany University Daegu South Korea
| | - Hee Young Kim
- College of Korean Medicine Daegu Haany University Daegu South Korea
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Kashefi A, Tomaz C, Jamali S, Rashidy-Pour A, Vafaei AA, Haghparast A. Cannabidiol attenuated the maintenance and reinstatement of extinguished methylphenidate-induced conditioned place preference in rats. Brain Res Bull 2020; 166:118-127. [PMID: 33264654 DOI: 10.1016/j.brainresbull.2020.11.021] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Revised: 11/25/2020] [Accepted: 11/26/2020] [Indexed: 12/21/2022]
Abstract
Methylphenidate (MPH) is a mild CNS stimulant that has been used in hyperactive children, and patients with neurodegenerative and major depressive disorders. Exposure to MPH-associated cues enhances craving and arousal in drug users. On the other hand, cannabidiol (CBD) has antipsychotic potential that might be useful in alleviating symptoms of drug addiction. The aim of this study was to investigate the effect of CBD administration on extinction and reinstatement of MPH-induced conditioning place preference (CPP) in rats. Male rats received MPH (1, 2.5 or 5 mg/kg, i.p) or morphine (5 or 10 mg/kg, s.c.) during the conditioning phase. Following the establishment of CPP, during extinction training, 60 min prior to every CPP session, animals were given daily ICV CBD (10 or 50 μg/5 μL), vehicle alone (DMSO) 10 % or were treatment-naïve. On the reinstatement day animals after receiving the initial dose of MPH, 0.5 mg/kg, and were placed into the CPP box to evaluate the CPP scoring for 10-min. Our findings indicated that morphine (5 and 10 mg/kg; s.c.) and MPH (1 and 2.5 mg/kg; i.p.) induced a CPP. The ICV administration of both doses of CBD (10 and 50 μg/5 μL) prevented the reinstatement of MPH-induced CPP, which displayed shorter extinction latency compared to treatment-naïve or DMSO 10 % groups. Therefore, CBD's site of action is a potential target for reducing the risk of MPH relapse; however, more investigation is required.
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Affiliation(s)
- Adel Kashefi
- Laboratory of Neuroscience and Behavior, Department of Physiological Sciences, University of Brasilia, Brasília, Brazil; Neuroscience Research Center, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; Research Center of Physiology, Semnan University of Medical Sciences, Semnan, Iran
| | - Carlos Tomaz
- Laboratory of Neuroscience and Behavior, University CEUMA, São Luís, Maranhão, Brazil
| | - Shole Jamali
- Neuroscience Research Center, Student Research Committee, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ali Rashidy-Pour
- Research Center of Physiology, Semnan University of Medical Sciences, Semnan, Iran
| | - Abbas Ali Vafaei
- Research Center of Physiology, Semnan University of Medical Sciences, Semnan, Iran
| | - Abbas Haghparast
- Neuroscience Research Center, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
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Carlson HN, Weiner JL. The neural, behavioral, and epidemiological underpinnings of comorbid alcohol use disorder and post-traumatic stress disorder. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2020; 157:69-142. [PMID: 33648676 DOI: 10.1016/bs.irn.2020.09.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Alcohol use disorder (AUD) and (PTSD) frequently co-occur and individuals suffering from this dual diagnosis often exhibit increased symptom severity and poorer treatment outcomes than those with only one of these diseases. Although there have been significant advances in our understanding of the neurobiological mechanisms underlying each of these disorders, the neural underpinnings of the comorbid condition remain poorly understood. This chapter summarizes recent epidemiological findings on comorbid AUD and PTSD, with a focus on vulnerable populations, the temporal relationship between these disorders, and the clinical consequences associated with the dual diagnosis. We then review animal models of the comorbid condition and emerging human and non-human animal research that is beginning to identify maladaptive neural changes common to both disorders, primarily involving functional changes in brain reward and stress networks. We end by proposing a neural framework, based on the emerging field of affective valence encoding, that may better explain the epidemiological and neural findings on AUD and PTSD.
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Affiliation(s)
- Hannah N Carlson
- Department of Physiology and Pharmacology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Jeff L Weiner
- Department of Physiology and Pharmacology, Wake Forest School of Medicine, Winston-Salem, NC, United States.
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Neurochemical regulators of food behavior for pharmacological treatment of obesity: current status and future prospects. Future Med Chem 2020; 12:1865-1884. [PMID: 33040605 DOI: 10.4155/fmc-2019-0361] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
In recent decades, obesity has become a pandemic disease and appears to be an ultimate medical and social problem. Existing antiobesity drugs show low efficiency and a wide variety of side effects. In this review, we discuss possible mechanisms underlying brain-gut-adipose tissue axis, as well as molecular biochemical characteristics of various neurochemical regulators of body weight and appetite. Multiple brain regions are responsible for eating behavior, hedonic eating and food addiction. The existing pharmacological targets for treatment of obesity were reviewed as well.
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Beneficial effects of physical activity on depressive and OCD-like behaviors in the male offspring of morphine-abstinent rats. Brain Res 2020; 1744:146908. [DOI: 10.1016/j.brainres.2020.146908] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2020] [Revised: 05/23/2020] [Accepted: 05/25/2020] [Indexed: 12/20/2022]
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44
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The Potential Role of Dual Mechanistic Opioids in Combating Opioid Misuse. CURRENT ANESTHESIOLOGY REPORTS 2020. [DOI: 10.1007/s40140-020-00414-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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45
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A Systematic Review of the Relative Frequency and Risk Factors for Prolonged Opioid Prescription Following Surgery and Trauma Among Adults. Ann Surg 2020; 271:845-854. [PMID: 31188226 DOI: 10.1097/sla.0000000000003403] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Qi B, Fiori LM, Turecki G, Trakadis YJ. Machine Learning Analysis of Blood microRNA Data in Major Depression: A Case-Control Study for Biomarker Discovery. Int J Neuropsychopharmacol 2020; 23:505-510. [PMID: 32365192 PMCID: PMC7689198 DOI: 10.1093/ijnp/pyaa029] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2019] [Revised: 04/14/2020] [Accepted: 04/26/2020] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND There is a lack of reliable biomarkers for major depressive disorder (MDD) in clinical practice. However, several studies have shown an association between alterations in microRNA levels and MDD, albeit none of them has taken advantage of machine learning (ML). METHOD Supervised and unsupervised ML were applied to blood microRNA expression profiles from a MDD case-control dataset (n = 168) to distinguish between (1) case vs control status, (2) MDD severity levels defined based on the Montgomery-Asberg Depression Rating Scale, and (3) antidepressant responders vs nonresponders. RESULTS MDD cases were distinguishable from healthy controls with an area-under-the receiver-operating characteristic curve (AUC) of 0.97 on testing data. High- vs low-severity cases were distinguishable with an AUC of 0.63. Unsupervised clustering of patients, before supervised ML analysis of each cluster for MDD severity, improved the performance of the classifiers (AUC of 0.70 for cluster 1 and 0.76 for cluster 2). Antidepressant responders could not be successfully separated from nonresponders, even after patient stratification by unsupervised clustering. However, permutation testing of the top microRNA, identified by the ML model trained to distinguish responders vs nonresponders in each of the 2 clusters, showed an association with antidepressant response. Each of these microRNA markers was only significant when comparing responders vs nonresponders of the corresponding cluster, but not using the heterogeneous unclustered patient set. CONCLUSIONS Supervised and unsupervised ML analysis of microRNA may lead to robust biomarkers for monitoring clinical evolution and for more timely assessment of treatment in MDD patients.
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Affiliation(s)
- Bill Qi
- Department of Human Genetics, McGill University, Montreal, QC, Canada
| | - Laura M Fiori
- Department of Psychiatry, McGill Group for Suicide Studies, Douglas Mental Health University Institute, McGill University, Montreal, Quebec, Canada
| | - Gustavo Turecki
- Department of Psychiatry, McGill Group for Suicide Studies, Douglas Mental Health University Institute, McGill University, Montreal, Quebec, Canada
| | - Yannis J Trakadis
- Department of Human Genetics, McGill University, Montreal, QC, Canada,Department of Psychiatry, McGill Group for Suicide Studies, Douglas Mental Health University Institute, McGill University, Montreal, Quebec, Canada,Department of Medical Genetics, McGill University Health Center, Montreal, QC, Canada,Correspondence: Yannis J. Trakadis, MD MSc FRCPC FCCMG, Human Genetics, McGill University Health Centre, Room A04.3140, Montreal Children’s Hospital, 1001 Boul. Décarie, Montreal, Quebec, Canada, H4A 3J1 ()
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Zhang Y, Zhai H. Bilobalide assuages morphine-induced addiction in hippocampal neuron cells through upregulation of microRNA-101. J Biochem Mol Toxicol 2020; 34:e22493. [PMID: 32319158 DOI: 10.1002/jbt.22493] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2019] [Revised: 12/24/2019] [Accepted: 03/03/2020] [Indexed: 11/09/2022]
Abstract
Bilobalide exhibits many biological activities, but its effects on morphine stimulation have not been elucidated. The research aims to explore the function and underlying mechanisms of bilobalide in morphine-led hippocampal neuron cells. Cells were treated with or without morphine or oxaliplatin (OXA), bilobalide, or SCH772984 dilutions. miR-101 inhibitor and negative control were transfected into cells. Western blot and quantitative reverse transcription-polymerase chain reaction were, respectively, conducted to measure the relative expression of proteins or RNAs. Morphine improved the expression levels of orexin1 receptor (OX1R) and c-FOS, the p/t-ERK/PKC as well. The c-FOS protein level and p/t-ERK/PKC were significantly elevated by morphine + OXA. Bilobalide had no effect on OX1R and p/t-PKC but evidently decreased the c-FOS and p/t-ERK. The p-ERK and the c-FOS accumulation levels were remarkably reduced by SCH772984. The production of miR-101 was promoted by bilobalide but inhibited by the miR-101 inhibitor. miR-101 inhibitor abolished bilobalide's inhibitory effects on p/t-ERK. Bilobalide exhibited morphine-induced effects on hippocampal neuron cells by upregulating miR-101.
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Affiliation(s)
- Yan Zhang
- Department of Pathology, Huaihe Hospital, Henan University, Kaifeng, China
| | - Hongyin Zhai
- Department of Children Rehabilitation Medicine, The Third Affiliated Hospital of Zhengzhou University, Zhengzhou, Henan, China
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Wang D, Zhang J, Bai Y, Zheng X, Alizamini MM, Shang W, Yang Q, Li M, Li Y, Sui N. Melanin-concentrating hormone in rat nucleus accumbens or lateral hypothalamus differentially impacts morphine and food seeking behaviors. J Psychopharmacol 2020; 34:478-489. [PMID: 31909693 DOI: 10.1177/0269881119895521] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
BACKGROUND Identifying neural substrates that are differentially affected by drugs of abuse and natural rewards is key to finding a target for an efficacious treatment for substance abuse. Melanin-concentrating hormone is a polypeptide with an inhibitory effect on the mesolimbic dopamine system. Here we test the hypothesis that melanin-concentrating hormone in the lateral hypothalamus and nucleus accumbens shell is differentially involved in the regulation of morphine and food-rewarded behaviors. METHODS Male Sprague-Dawley rats were trained with morphine (5.0 mg/kg, subcutaneously) or food pellets (standard chow, 10-14 g) to induce a conditioned place preference, immediately followed by extinction training. Melanin-concentrating hormone (1.0 µg/side) or saline was infused into the nucleus accumbens shell or lateral hypothalamus before the reinstatement primed by morphine or food, and locomotor activity was simultaneously monitored. As the comparison, melanin-concentrating hormone was also microinjected into the nucleus accumbens shell or lateral hypothalamus before the expression of food or morphine-induced conditioned place preference. RESULTS Microinfusion of melanin-concentrating hormone into the nucleus accumbens shell (but not into the lateral hypothalamus) prevented the reinstatement of morphine conditioned place preference but had no effect on the reinstatement of food conditioned place preference. In contrast, microinfusion of melanin-concentrating hormone into the lateral hypothalamus (but not in the nucleus accumbens shell) inhibited the reinstatement of food conditioned place preference but had no effect on the reinstatement of morphine conditioned place preference. CONCLUSIONS These results suggest a clear double dissociation of melanin-concentrating hormone in morphine/food rewarding behaviors and melanin-concentrating hormone in the nucleus accumbens shell. Melanin-concentrating hormone could be a potential target for therapeutic intervention for morphine abuse without affecting natural rewards.
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Affiliation(s)
- Dongmei Wang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Jianjun Zhang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Yunjing Bai
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Xigeng Zheng
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Mirmohammadali M Alizamini
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Wen Shang
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Qingxiong Yang
- School of Karst Science, Guizhou Normal University/State Engineering Technology Institute for Karst Desertification Control, Guiyang, China
| | - Ming Li
- Department of Psychology, University of Nebraska-Lincoln, Lincoln, NE, USA
| | - Yonghui Li
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Nan Sui
- CAS Key Laboratory of Mental Health, Institute of Psychology, Beijing, China.,Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
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Scheggi S, Braccagni G, De Montis MG, Gambarana C. Heightened reward response is associated with HCN2 overexpression in the ventral tegmental area in morphine-sensitized rats. Behav Pharmacol 2020; 31:283-292. [DOI: 10.1097/fbp.0000000000000545] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Malboosi N, Nasehi M, Hashemi M, Vaseghi S, Zarrindast MR. The neuroprotective effect of NeuroAid on morphine-induced amnesia with respect to the expression of TFAM, PGC-1α, ΔfosB and CART genes in the hippocampus of male Wistar rats. Gene 2020; 742:144601. [PMID: 32198124 DOI: 10.1016/j.gene.2020.144601] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2020] [Revised: 02/16/2020] [Accepted: 03/16/2020] [Indexed: 02/07/2023]
Abstract
Morphine is a natural alkaloid which derived from the opium poppy Papaver somniferum. Many studies have reported the effect of morphine on learning, memory and gene expression. CART (cocaine-amphetamine regulated transcript)is an important neuropeptide which has a critical role in physiological processes including drug dependence and antioxidant activity. ΔfosB is a transcription factor which modulates synaptic plasticity and affects learning and memory. TFAM (the mitochondrial transcription factor A) and PGC-1α (Peroxisome proliferator-activated receptor γ coactivator-1α) are critically involved in mitochondrial biogenesis and antioxidant pathways. NeuroAid is a Chinese medicine that induces neuroprotective and anti-apoptotic effects. In this research, we aimed to investigate the effect of NeuroAid on morphine-induced amnesia with respect to the expression of TFAM, PGC-1α, ΔfosB and CART in the rat's hippocampus. In this study, Morphine sulfate (at increasing doses), Naloxone hydrochloride (2.5 mg/kg) and NeuroAid (2.5 mg/kg) were administered intraperitoneal and real-time PCR reactions were done to assess gene expression. The results showed, morphine impaired memory of step-through passive avoidance, while NeuroAid had no effect. NeuroAid attenuated (but not reversed) morphine-induced memory impairment in morphine-addicted rats. Morphine increased the expression of PGC-1α and decreased the expression of CART. However, NeuroAid increased the expression of TFAM, PGC-1α, ΔfosB and CART. NeuroAid restored the effect of morphine on the expression of CART and PGC-1α. In conclusion, morphine impaired memory of step-through passive avoidance and NeuroAid attenuated this effect. The effect of NeuroAid on morphine-induced memory impairment/gene expression may be related to its anti-apoptotic and neuroprotective effects.
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Affiliation(s)
- Nasrin Malboosi
- Department of Genetics, Faculty of Advanced Science and Technology, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Mohammad Nasehi
- Cognitive and Neuroscience Research Center (CNRC), Amir-Almomenin Hospital, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran.
| | - Mehrdad Hashemi
- Department of Genetics, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran
| | - Salar Vaseghi
- Cognitive and Neuroscience Research Center (CNRC), Amir-Almomenin Hospital, Tehran Medical Sciences, Islamic Azad University, Tehran, Iran; Institute for Cognitive Science Studies (ICSS), Tehran, Iran
| | - Mohammad-Reza Zarrindast
- Institute for Cognitive Science Studies (ICSS), Tehran, Iran; Department of Pharmacology School of Medicine, Tehran University of Medical Sciences, Tehran, Iran; Department of Neuroendocrinology, Endocrinology and Metabolism Research Institute, Tehran University of Medical Sciences, Tehran, Iran
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