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Li J, Wu Y, Xue T, He J, Zhang L, Liu Y, Zhao J, Chen Z, Xie M, Xiao B, Ye Y, Qin S, Tang Q, Huang M, Zhu H, Liu N, Guo F, Zhang L, Zhang L. Cdc42 signaling regulated by dopamine D2 receptor correlatively links specific brain regions of hippocampus to cocaine addiction. Biochim Biophys Acta Mol Basis Dis 2023; 1869:166569. [PMID: 36243293 DOI: 10.1016/j.bbadis.2022.166569] [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: 05/23/2022] [Revised: 09/18/2022] [Accepted: 10/06/2022] [Indexed: 11/19/2022]
Abstract
BACKGROUND Hippocampus plays critical roles in drug addiction. Cocaine-induced modifications in dopamine receptor function and the downstream signaling are important regulation mechanisms in cocaine addiction. Rac regulates actin filament accumulation while Cdc42 stimulates the formation of filopodia and neurite outgrowth. Based on the region specific roles of small GTPases in brain, we focused on the hippocampal subregions to detect the regulation of Cdc42 signaling in long-term morphological and behavioral adaptations to cocaine. METHODS Genetically modified mouse models of Cdc42, dopamine receptor D1 (D1R) and D2 (D2R) and expressed Cdc42 point mutants that are defective in binding to and activation of its downstream effector molecules PAK and N-WASP were generated, respectively, in CA1 or dentate gyrus (DG) subregion. RESULTS Cocaine induced upregulation of Cdc42 signaling activity. Cdc42 knockout or mutants blocked cocaine-induced increase in spine plasticity in hippocampal CA1 pyramidal neurons, leading to a decreased conditional place preference (CPP)-associated memories and spatial learning and memory in water maze. Cdc42 knockout or mutants promoted cocaine-induced loss of neurogenesis in DG, leading to a decreased CPP-associated memories and spatial learning and memory in water maze. Furthermore, by using D1R knockout, D2R knockout, and D2R/Cdc42 double knockout mice, we found that D2R, but not D1R, regulated Cdc42 signaling in cocaine-induced neural plasticity and behavioral changes. CONCLUSIONS Cdc42 acts downstream of D2R in the hippocampus and plays an important role in cocaine-induced neural plasticity through N-WASP and PAK-LIMK-Cofilin, and Cdc42 signaling pathway correlatively links specific brain regions (CA1, dentate gyrus) to cocaine-induced CPP behavior.
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Affiliation(s)
- Juan Li
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China; Department of Histology and Embryology, NMPA Key Laboratory for Safety Evaluation of Cosmetics, Key Laboratory of Construction and Detection in Tissue Engineering of Guangdong Province, School of Basic Medical Sciences, Center for Orthopaedic Surgery of the Third Affiliated Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yue Wu
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Tao Xue
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Jing He
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Lei Zhang
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yutong Liu
- Department of Histology and Embryology, NMPA Key Laboratory for Safety Evaluation of Cosmetics, Key Laboratory of Construction and Detection in Tissue Engineering of Guangdong Province, School of Basic Medical Sciences, Center for Orthopaedic Surgery of the Third Affiliated Hospital, Southern Medical University, Guangzhou 510515, China
| | - Jinlan Zhao
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Zhenzhong Chen
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Minjuan Xie
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Bin Xiao
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Yingshan Ye
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Sifei Qin
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Qingqiu Tang
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Mengfan Huang
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Hangfei Zhu
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China
| | - N Liu
- Institute of Comparative Medicine & Laboratory Animal Center, Elderly Health Services Research Center, Southern Medical University, Guangzhou 510515, China
| | - Fukun Guo
- Division of Experimental Hematology and Cancer Biology, Children's Hospital Research Foundation, Cincinnati, OH, USA
| | - Lin Zhang
- Department of Histology and Embryology, NMPA Key Laboratory for Safety Evaluation of Cosmetics, Key Laboratory of Construction and Detection in Tissue Engineering of Guangdong Province, School of Basic Medical Sciences, Center for Orthopaedic Surgery of the Third Affiliated Hospital, Southern Medical University, Guangzhou 510515, China.
| | - Lu Zhang
- Guangdong Provincial Key Laboratory of Functional Proteomics, Key Laboratory of Mental Health of the Ministry of Education, School of Basic Medical Sciences, Pediatric Center of Zhujiang Hospital, Southern Medical University, Guangzhou 510515, China.
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Li H, Wan X, Wu Z, Zhou Y, Chen R, Xu W, Zhang J, Yang Z, Bai L, Zhang J, Qin F, Wang L, Chen Y, Jiang L, He Y, Wang X, Wei Q, Li S, Dai Y, Chen Y, Wang Y, Wang H, Tian J, Zhao Y, Cen X. β-hydroxybutyrate reduces reinstatement of cocaine conditioned place preference through hippocampal CaMKII-α β-hydroxybutyrylation. Cell Rep 2022; 41:111724. [PMID: 36450263 DOI: 10.1016/j.celrep.2022.111724] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2022] [Revised: 08/29/2022] [Accepted: 10/03/2022] [Indexed: 12/02/2022] Open
Abstract
Studies have shown the therapeutic effects of a ketogenic diet (KD) on epilepsy, but the effect of a KD on drug reinstatement is largely unclear. This study aims to investigate whether KD consumption possesses therapeutic potential for cocaine reinstatement and the molecular mechanism. We find that a KD significantly reduces cocaine-induced reinstatement in mice, which is accompanied by a markedly elevated level of β-hydroxybutyrate (β-OHB), the most abundant ketone body, in the hippocampus. The underlying mechanism is that β-OHB posttranslationally modifies CaMKII-α with β-hydroxybutyrylation, resulting in significant inhibition of T286 autophosphorylation and downregulation of CaMKII activity. Collectively, our results reveal that β-hydroxybutyrylation is a posttranslational modification of CaMKII-α that plays a critical role in mediating the effect of KD consumption in reducing cocaine reinstatement.
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Affiliation(s)
- Hongchun Li
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xuemei Wan
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhixiang Wu
- Faculty of Environmental and Life Science, Beijing University of Technology, Beijing 100124, China
| | - Yuanyi Zhou
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Rong Chen
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Wei Xu
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China; Shenzhen Key Laboratory of Drug Addiction, The Brain Cognition and Brain Disease Institute, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences (CAS), Shenzhen 518055, China
| | - Jiamei Zhang
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Zhen Yang
- Histology and Imaging Platform, Core Facilities of West China Hospital, Sichuan University, Chengdu 610041, China
| | - Lin Bai
- Histology and Imaging Platform, Core Facilities of West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jie Zhang
- Histology and Imaging Platform, Core Facilities of West China Hospital, Sichuan University, Chengdu 610041, China
| | - Feng Qin
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Liang Wang
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yaxing Chen
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Linhong Jiang
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yuman He
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xiaojie Wang
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qingfan Wei
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Shu Li
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yanping Dai
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yuanyuan Chen
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yonghai Wang
- Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Hongbo Wang
- Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Jingwei Tian
- Ministry of Education, Collaborative Innovation Center of Advanced Drug Delivery System and Biotech Drugs in Universities of Shandong, Yantai University, Yantai 264005, China
| | - Yinglan Zhao
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Xiaobo Cen
- National Chengdu Center for Safety Evaluation of Drugs, State Key Laboratory of Biotherapy/Collaborative Innovation Center for Biotherapy, West China Hospital, Sichuan University, Chengdu 610041, China.
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Rezaeian L, Khaksari M, Rafaiee R, Kalalian Moghaddam H, Kalalian Moghaddam H. Neuroprotective Effects of Berberine Hydrochloride on Methamphetamine-induced Cognitive Dysfunction: Immunohistochemical and Behavioral Studies in Rats. Basic Clin Neurosci 2022; 13:443-453. [PMID: 36561238 PMCID: PMC9759777 DOI: 10.32598/bcn.2021.1444.2] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2020] [Revised: 09/29/2020] [Accepted: 10/06/2020] [Indexed: 12/25/2022] Open
Abstract
Introduction Methamphetamine (MA) as an addictive psychostimulant drug affects the central nervous system. The current research aimed to evaluate the impact of berberine hydrochloride on improving cognitive function and neuroprotective effects in rats addicted to MA. Methods In this study, 27 male Wistar rats were randomly assigned to three groups, including control, MA addiction, and MA addiction with berberine hydrochloride (100 mg/kg/d) orally during the three weeks of withdrawal. Two groups received self-administered inhaled MA for two weeks (up to 10 mg/kg). Following the experimental procedures, a Morris water maze (MWM) and shuttle box were used to assess memory, and hippocampal sections from the animals were examined for caspase-3, Ki-67, and glial fibrillary acidic protein (GFAP) expression. Results The obtained results from the Morris water maze (MWM) showed that berberine hydrochloride decreases (P<0.01) the distance moved and the time spent to reach the hidden platform in the four-day learning trails phase and significant differences were observed in the distance moved, spent time, and frequency of motion in target quadrant on probe test day between groups. Berberine hydrochloride also reduced the latency of animals entering the dark chamber in the treated group compared to the control group (P<0.05). A significant decrease in activation of caspases-3, higher percentages of Ki-67 expression, and an increase in glial fibrillary acidic protein (GFAP) expression of cells was observed in the addicted group compared to the berberine-treated and control groups (P<0.05). Conclusion Administration of berberine hydrochloride for 3 weeks improves cognitive function in MA addiction and it has potential neuroprotective efficacy. Highlights Methamphetamine (MA) as an addictive psychostimulant drug affects the central nervous system.The berberine hydrochloride effects on improving cognitive function and neuroprotective.No approved pharmacotherapy, as well as confirmed medication, is available to treat MA abuse. Plain Language Summary Methamphetamine (MA) is known as a strong addictive stimulant with high addiction and no approved pharmaco-therapy, as well as confirmed medication, is available to treat MA abuse. The study on the long-term effect of MA exposure on cognitive function during an object recognition memory test showed cognitive dysfunction after MA exposure. Berberine can reduce induced amnesia, which can be due to the increased peripheral and central cholinergic neuronal system functions, in addition, the most important mechanism in the protective effect of berberine against amnesia is the inhabitation of inflammation; however, the berberine impact on cells should be more investigated.
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Affiliation(s)
- Leila Rezaeian
- Department of Addiction Studies, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Mehdi Khaksari
- Addiction Research Center, Shahroud University of Medical Sciences, Shahroud, Iran
| | - Raheleh Rafaiee
- Department of Neuroscience, School of Advanced Technologies in Medicine, Mazandaran University of Medical Sciences, Sari, Iran
| | - Hamid Kalalian Moghaddam
- Department of Physiology, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran.,Corresponding Author: Hamid Kalalian Moghaddam, PhD.Address: Department of Physiology, School of Medicine, Shahroud University of Medical Sciences, Shahroud, Iran. Tel: +98 (912) 3731855 E-mail:
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4
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Cai J, Che X, Xu T, Luo Y, Yin M, Lu X, Wu C, Yang J. Repeated oxytocin treatment during abstinence inhibited context- or restraint stress-induced reinstatement of methamphetamine-conditioned place preference and promoted adult hippocampal neurogenesis in mice. Exp Neurol 2021; 347:113907. [PMID: 34715133 DOI: 10.1016/j.expneurol.2021.113907] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 10/06/2021] [Accepted: 10/23/2021] [Indexed: 12/28/2022]
Abstract
Propensity to relapse, even after long-term abstinence, is a crucial feature of methamphetamine (METH) abuse. We and other laboratories have reported that acute treatment of oxytocin (OXT), a hormone and neuropeptide, could inhibit reinstatement of METH seeking in animal studies. However, the effects of repeated OXT treatment on METH reinstatement as well as underlying mechanisms are still unclear. In the present study, the effects of repeated OXT treatment during abstinence on context- or restraint stress-induced reinstatement were investigated using the mice conditioned place preference (CPP) paradigm. After three intermittent injections of METH (2 mg/kg, i.p.) to induce CPP, mice received a daily bilateral intra-hippocampus injection of OXT (0.625, 1.25 or 2.5 μg) for 8 consecutive days before the context- or restraint stress-induced reinstatement test. Meanwhile, adult hippocampal neurogenesis (AHN) level was detected using immunostaining. To further clarify the role of AHN underlying OXT's effects on METH-CPP reinstatement, temozolomide (TMZ, 25 mg/kg, i.p.) was employed to deplete AHN prior to OXT treatment. The data showed that repeated OXT treatment (1.25 and 2.5 μg, intra-hippocampus) significantly inhibited both context- and restraint stress-induced METH-CPP reinstatement and concomitantly promoted AHN in a dose-dependent manner. Notably, TMZ pre-treatment markedly abolished all the above-mentioned effects of OXT, suggesting that AHN was closely involved in OXT's inhibition on reinstatement induced by both triggers. Taken together, the present study indicated that repeated OXT treatment during abstinence could inhibit both context- and restraint stress-induced METH-CPP reinstatement possibly by promoting AHN in mice, which provided a better understanding for OXT's beneficial effects on METH addiction.
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Affiliation(s)
- Jialing Cai
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Xiaohang Che
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Tianyu Xu
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Yuanchao Luo
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Meixue Yin
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Xianda Lu
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Chunfu Wu
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang 110016, PR China
| | - Jingyu Yang
- Department of Pharmacology, Shenyang Pharmaceutical University, Shenyang 110016, PR China.
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Shukla M, Vincent B. Methamphetamine abuse disturbs the dopaminergic system to impair hippocampal-based learning and memory: An overview of animal and human investigations. Neurosci Biobehav Rev 2021; 131:541-559. [PMID: 34606820 DOI: 10.1016/j.neubiorev.2021.09.016] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Revised: 08/09/2021] [Accepted: 09/12/2021] [Indexed: 12/12/2022]
Abstract
Diverse intellectual functions including memory are some important aspects of cognition. Dopamine is a neurotransmitter of the catecholamine family, which contributes to the experience of pleasure and/or emotional states but also plays crucial roles in learning and memory. Methamphetamine is an illegal drug, the abuse of which leads to long lasting pathological manifestations in the brain. Chronic methamphetamine-induced neurotoxicity results in an alteration of various parts of the memory systems by affecting learning processes, an effect attributed to the structural similarities of this drug with dopamine. An evolving field of research established how cognitive deficits in abusers arise and how they could possibly trigger neurodegenerative disorders. Thus, the drugs-induced tenacious neurophysiological changes of the dopamine system trigger cognitive deficits, thereby affirming the influence of this addictive drug on learning, memory and executive function in human abusers. Here we present an overview of the effects of methamphetamine abuse on cognitive functions, dopaminergic transmission and hippocampal integrity as they have been validated in animals and in humans during the past 20 years.
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Affiliation(s)
- Mayuri Shukla
- Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, 73170, Thailand
| | - Bruno Vincent
- Institute of Molecular Biosciences, Mahidol University, Nakhon Pathom, 73170, Thailand; Centre National de la Recherche Scientifique, 2 Rue Michel Ange, 75016, Paris, France.
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Rodrigues RS, Paulo SL, Moreira JB, Tanqueiro SR, Sebastião AM, Diógenes MJ, Xapelli S. Adult Neural Stem Cells as Promising Targets in Psychiatric Disorders. Stem Cells Dev 2021; 29:1099-1117. [PMID: 32723008 DOI: 10.1089/scd.2020.0100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
The development of new therapies for psychiatric disorders is of utmost importance, given the enormous toll these disorders pose to society nowadays. This should be based on the identification of neural substrates and mechanisms that underlie disease etiopathophysiology. Adult neural stem cells (NSCs) have been emerging as a promising platform to counteract brain damage. In this perspective article, we put forth a detailed view of how NSCs operate in the adult brain and influence brain homeostasis, having profound implications at both behavioral and functional levels. We appraise evidence suggesting that adult NSCs play important roles in regulating several forms of brain plasticity, particularly emotional and cognitive flexibility, and that NSC dynamics are altered upon brain pathology. Furthermore, we discuss the potential therapeutic value of utilizing adult endogenous NSCs as vessels for regeneration, highlighting their importance as targets for the treatment of multiple mental illnesses, such as affective disorders, schizophrenia, and addiction. Finally, we speculate on strategies to surpass current challenges in neuropsychiatric disease modeling and brain repair.
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Affiliation(s)
- Rui S Rodrigues
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.,Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Sara L Paulo
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.,Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - João B Moreira
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.,Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Sara R Tanqueiro
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.,Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Ana M Sebastião
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.,Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Maria J Diógenes
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.,Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
| | - Sara Xapelli
- Instituto de Farmacologia e Neurociências, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal.,Instituto de Medicina Molecular João Lobo Antunes, Faculdade de Medicina, Universidade de Lisboa, Lisboa, Portugal
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7
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Razavi Y, Keyhanfar F, Haghparast A, Shabani R, Mehdizadeh M. Cannabidiol promotes neurogenesis in the dentate gyrus during an abstinence period in rats following chronic exposure to methamphetamine. Metab Brain Dis 2021; 36:1381-1390. [PMID: 34143376 DOI: 10.1007/s11011-021-00774-9] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/01/2021] [Accepted: 06/06/2021] [Indexed: 10/21/2022]
Abstract
Chronic methamphetamine (meth) abuse can lead to certain deficits in the hippocampal function by affecting the hippocampal neurogenesis and plasticity. To determine whether cannabidiol (CBD) can promote proliferation and maturation of neuronal progenitor cells, this study investigated the CBD effect on neurogenesis in the hippocampal dentate gyrus (DG) following chronic exposure to meth in rats. The rats received 2 mg/kg of meth twice a day for ten days. Next, immunofluorescence was performed to evaluate the effect of intracerebroventricular (ICV) administration of CBD (50 μg/5 μL) over an abstinence period (ten days) on the expression levels of neurogenesis markers, such as Ki67, NeuN, and doublecortin (DCX). Moreover, neuronal degeneration in the hippocampus was assessed using Nissl staining. According to our findings, repeated ICV administration of CBD improved cell proliferation and neurogenesis and increased the number of Ki-67 and DCX-positive cells in the abstinence period. Meanwhile, meth treatment subjects caused a significant decrease in the number of neurogenesis makers, as compared to the control group. The neurogenesis markers (Ki-67 and DCX) could be somewhat reversed, while NeuN did not show any significant increase in the CBD group. Our findings demonstrated that CBD can induce neuroprotective effects by modulating neurogenesis. Therefore, it can provide a promising therapeutic approach to improve cognitive performance following chronic exposure to psychostimulant drugs, including meth.
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Affiliation(s)
- Yasaman Razavi
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran
| | - Fariborz Keyhanfar
- Department of Pharmacology, 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
| | - Ronak Shabani
- Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Mehdi Mehdizadeh
- Cellular and Molecular Research Center, Iran University of Medical Sciences, Tehran, Iran.
- Department of Anatomy, School of Medicine, Iran University of Medical Sciences, Tehran, Iran.
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4R Tau Modulates Cocaine-Associated Memory through Adult Dorsal Hippocampal Neurogenesis. J Neurosci 2021; 41:6753-6774. [PMID: 34099513 DOI: 10.1523/jneurosci.2848-20.2021] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2020] [Revised: 04/28/2021] [Accepted: 05/25/2021] [Indexed: 02/05/2023] Open
Abstract
The development, persistence and relapse of drug addiction require drug memory that generally develops with drug administration-paired contextual stimuli. Adult hippocampal neurogenesis (AHN) contributes to cocaine memory formation; however, the underlying mechanism remains unclear. Male mice hippocampal expression of Tau was significantly decreased during the cocaine-associated memory formation. Genetic overexpression of four microtubule-binding repeats Tau (4R Tau) in the mice hippocampus disrupted cocaine memory by suppressing AHN. Furthermore, 4R Tau directly interacted with phosphoinositide 3-kinase (PI3K)-p85 and impaired its nuclear translocation and PI3K-AKT signaling, processes required for hippocampal neuron proliferation. Collectively, 4R Tau modulates cocaine memory formation by disrupting AHN, suggesting a novel mechanism underlying cocaine memory formation and provide a new strategy for the treatment of cocaine addiction.SIGNIFICANCE STATEMENT Drug memory that generally develops with drug-paired contextual stimuli and drug administration is critical for the development, persistence and relapse of drug addiction. Previous studies have suggested that adult hippocampal neurogenesis (AHN) plays a role in cocaine memory formation. Here, we showed that Tau was significantly downregulated in the hippocampus in the cocaine memory formation. Tau knock-out (KO) promoted AHN in the hippocampal dentate gyrus (DG), resulting in the enhanced memory formation evoked by cocaine-cue stimuli. In contrast, genetically overexpressed 4R Tau in the hippocampus disrupted cocaine-cue memory by suppressing AHN. In addition, 4R Tau interacted directly with phosphoinositide 3-kinase (PI3K)-p85 and hindered its nuclear translocation, eventually repressing PI3K-AKT signaling, which is essential for hippocampal neuronal proliferation.
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Caffino L, Mottarlini F, Zita G, Gawliński D, Gawlińska K, Wydra K, Przegaliński E, Fumagalli F. The effects of cocaine exposure in adolescence: Behavioural effects and neuroplastic mechanisms in experimental models. Br J Pharmacol 2021; 179:4233-4253. [PMID: 33963539 PMCID: PMC9545182 DOI: 10.1111/bph.15523] [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: 01/13/2021] [Revised: 04/15/2021] [Accepted: 05/04/2021] [Indexed: 01/23/2023] Open
Abstract
Drug addiction is a devastating disorder with a huge economic and social burden for modern society. Although an individual may slip into drug abuse throughout his/her life, adolescents are at higher risk, but, so far, only a few studies have attempted to elucidate the underlying cellular and molecular bases of such vulnerability. Indeed, preclinical evidence indicates that psychostimulants and adolescence interact and contribute to promoting a dysfunctional brain. In this review, we have focused our attention primarily on changes in neuroplasticity brought about by cocaine, taking into account that there is much less evidence from exposure to cocaine in adolescence, compared with that from adults. This review clearly shows that exposure to cocaine during adolescence, acute or chronic, as well as contingent or non‐contingent, confers a vulnerable endophenotype, primarily, by causing changes in neuroplasticity. Given the close relationship between drug abuse and psychiatric disorders, we also discuss the translational implications providing an interpretative framework for clinical studies involving addictive as well as affective or psychotic behaviours.
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Affiliation(s)
- Lucia Caffino
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Francesca Mottarlini
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
| | - Gianmaria Zita
- Dipartimento di Salute Mentale e Dipendenze, ASST Fatebenefratelli-Sacco, Milan, Italy
| | - Dawid Gawliński
- Department of Drug Addiction Pharmacology, Maj Institute of Pharmacology Polish Academy of Sciences, Kraków, Poland
| | - Kinga Gawlińska
- Department of Drug Addiction Pharmacology, Maj Institute of Pharmacology Polish Academy of Sciences, Kraków, Poland
| | - Karolina Wydra
- Department of Drug Addiction Pharmacology, Maj Institute of Pharmacology Polish Academy of Sciences, Kraków, Poland
| | - Edmund Przegaliński
- Department of Drug Addiction Pharmacology, Maj Institute of Pharmacology Polish Academy of Sciences, Kraków, Poland
| | - Fabio Fumagalli
- Department of Pharmacological and Biomolecular Sciences, Università degli Studi di Milano, Milan, Italy
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10
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Rivera P, Aranda J, Alén F, Vargas A, Serrano A, Pavón FJ, Orio L, Rubio L, Moratalla R, de Fonseca FR, Suárez J. Sex-specific behavioral and neurogenic responses to cocaine in mice lacking and blocking dopamine D1 or dopamine D2 receptors. J Comp Neurol 2020; 529:1724-1742. [PMID: 33047300 DOI: 10.1002/cne.25052] [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: 03/19/2020] [Revised: 07/21/2020] [Accepted: 10/03/2020] [Indexed: 12/22/2022]
Abstract
Adult neurogenesis in rodents is modulated by dopaminergic signaling and inhibited by cocaine. However, the sex-specific role of dopamine D1 and D2 receptors (D1R, D2R) in the deleterious effect of cocaine on adult neurogenesis has not been described yet. Here, we explored sex differences in (a) cell proliferation (5'-bromo-2'-deoxyuridine [BrdU]), (b) neural precursor (nestin), (c) neuronal phenotype (BrdU/β3-tubulin), and (d) neuronal maturity (NeuN) in the subventricular zone (SVZ) of the lateral ventricles and striatum of mice with genetic deletion (D1-/- , D2-/- ) or pharmacological blockage (SCH23390: 0.1 mg/kg/day/5 days; Raclopride: 0.3 mg/kg/day/5 days) of D1R and D2R, and treated (10 mg/kg/day/5 days) and then challenged (5 mg/kg, 48 hr later) with cocaine. Results indicated that hyperactivity responses to cocaine were absent in D1-/- mice and reduced in SCH23390-treated mice. Activity responses to cocaine were reduced in D2-/- males, but absent in D2-/- females and increased in Raclopride-treated females. D1R deletion blocked the deleterious effect of cocaine on SVZ cell proliferation in males. Cocaine-exposed D1-/- males also had reduced neuronal phenotype of SVZ newborn cells and increased striatal neuronal maturity. D2-/- mice had lower proliferative and neural precursor responses. Cocaine in D2-/- females or coadministered with Raclopride in wild-type females improved SVZ cell proliferation, an effect that positively correlated with plasma brain-derived neurotrophic factor (BDNF) concentrations. In conclusion, the sex-specific D1R and D2R signaling on SVZ cell proliferation, neural progenitor and neuronal maturity is differentially perturbed by cocaine, and BDNF may be required to link D2R to neuroplasticity in cocaine addiction in females.
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Affiliation(s)
- Patricia Rivera
- UGC Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, Universidad de Málaga, Málaga, Spain
| | - Jesús Aranda
- UGC Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, Universidad de Málaga, Málaga, Spain
| | - Francisco Alén
- Departamento de Psicobiología, Universidad Complutense de Madrid, Madrid, Spain
| | - Antonio Vargas
- UGC Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, Universidad de Málaga, Málaga, Spain
| | - Antonia Serrano
- UGC Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, Universidad de Málaga, Málaga, Spain
| | - Francisco Javier Pavón
- UGC Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, Universidad de Málaga, Málaga, Spain.,CIBERCV, Instituto de Salud Carlos III, Madrid, Spain; and UGC Corazón, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Virgen de la Victoria, Universidad de Málaga, Málaga, Spain
| | - Laura Orio
- Departamento de Psicobiología, Universidad Complutense de Madrid, Madrid, Spain
| | - Leticia Rubio
- Departamento de Anatomía Humana y Medicina Legal, Universidad de Málaga, Málaga, Spain
| | - Rosario Moratalla
- Instituto Cajal de Madrid, Consejo Superior de Investigaciones Científica, Madrid, Spain
| | - Fernando Rodríguez de Fonseca
- UGC Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, Universidad de Málaga, Málaga, Spain
| | - Juan Suárez
- UGC Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Universitario Regional de Málaga, Universidad de Málaga, Málaga, Spain
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11
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Luján MÁ, Cantacorps L, Valverde O. The pharmacological reduction of hippocampal neurogenesis attenuates the protective effects of cannabidiol on cocaine voluntary intake. Addict Biol 2020; 25:e12778. [PMID: 31162770 DOI: 10.1111/adb.12778] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 02/26/2019] [Accepted: 05/02/2019] [Indexed: 12/24/2022]
Abstract
The administration of cannabidiol has shown promising evidence in the treatment of some neuropsychiatric disorders, including cocaine addiction. However, little information is available as to the mechanisms by which cannabidiol reduces drug use and compulsive seeking. We investigated the role of adult hippocampal neurogenesis in reducing cocaine voluntary intake produced by repeated cannabidiol treatment in mice. Cocaine intake was modelled using the intravenous cocaine self-administration procedure in CD1 male mice. Cannabidiol (20 mg/kg) reduced cocaine self-administration behaviour acquisition and total cocaine intake and enhanced adult hippocampal neurogenesis. Our results show that a 6-day repeated temozolomide treatment (25 mg/kg/day), a chemotherapy drug that blocks hippocampal neurogenesis, prevented cannabidiol-induced increment in the early stages of neuronal maturation and differentiation, without altering the basal levels of BrdU/NeuN and doublecortin immunostaining. The reduction of total cocaine intake and operant behaviour acquisition observed following cannabidiol exposure was attenuated by temozolomide treatment. Our results also show a similar effect of temozolamide on a cannabidiol-induced improvement of novel object recognition memory, a task influenced by the proneurogenic effects of cannabidiol (10 and 20 mg/kg). The anxiolytic effects of cannabidiol (10 and 20 mg/kg), however, remained unaffected after its proneurogenic effects decreased. The present study confirms that adult hippocampal neurogenesis is one of the mechanisms by which cannabidiol lowers cocaine reinforcement and demonstrates the functional implication of adult hippocampal neurogenesis in cocaine voluntary consumption in mice. Such findings highlight the possible use of cannabidiol for developing new pharmacotherapies to manage cocaine use disorders.
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Affiliation(s)
- Miguel Ángel Luján
- Neurobiology of Behaviour Research Group (GReNeC—NeuroBio), Department of Experimental and Health Sciences Universitat Pompeu Fabra Barcelona Spain
| | - Lídia Cantacorps
- Neurobiology of Behaviour Research Group (GReNeC—NeuroBio), Department of Experimental and Health Sciences Universitat Pompeu Fabra Barcelona Spain
| | - Olga Valverde
- Neurobiology of Behaviour Research Group (GReNeC—NeuroBio), Department of Experimental and Health Sciences Universitat Pompeu Fabra Barcelona Spain
- Neuroscience Research Programme IMIM‐Hospital del Mar Research Institute Barcelona Spain
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12
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Indices of dentate gyrus neurogenesis are unaffected immediately after or following withdrawal from morphine self-administration compared to saline self-administering control male rats. Behav Brain Res 2019; 381:112448. [PMID: 31870778 DOI: 10.1016/j.bbr.2019.112448] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 12/01/2019] [Accepted: 12/19/2019] [Indexed: 12/16/2022]
Abstract
Opiates - including morphine - are powerful analgesics with high abuse potential. In rodents, chronic opiate exposure or self-administration negatively impacts hippocampal-dependent function, an effect perhaps due in part to the well-documented opiate-induced inhibition of dentate gyrus (DG) precursor proliferation and neurogenesis. Recently, however, intravenous (i.v.) morphine self-administration (MSA) was reported to enhance the survival of new rat DG neurons. To reconcile these disparate results, we used rat i.v. MSA to assess 1) whether a slightly-higher dose MSA paradigm also increases new DG neuron survival; 2) how MSA influences cells in different stages of DG neurogenesis, particularly maturation and survival; and 3) if MSA-induced changes in DG neurogenesis persist through a period of abstinence. To label basal levels of proliferation, rats received the S-phase marker bromodeoxyuridine (BrdU, i.p.) 24 -h prior to 21 days (D) of i.v. MSA or saline self-administration (SSA). Either immediately after SA (0-D) or after 4 weeks in the home cage (28-D withdrawal), stereology was used to quantify DG proliferating precursors (or cells in cell cycle; Ki67+ cells), neuroblast/immature neurons (DCX+ cells), and surviving DG granule cells (BrdU+ cells). Analysis revealed the number of DG cells immunopositive for these neurogenesis-relevant markers was similar between MSA and SSA rats at the 0-D or 28-D timepoints. These negative data highlight the impact experimental parameters, timepoint selection, and quantification approach have on neurogenesis results, and are discussed in the context of the large literature showing the negative impact of opiates on DG neurogenesis.
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13
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Castilla-Ortega E, Santín LJ. Adult hippocampal neurogenesis as a target for cocaine addiction: a review of recent developments. Curr Opin Pharmacol 2019; 50:109-116. [PMID: 31708413 DOI: 10.1016/j.coph.2019.10.002] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2019] [Revised: 08/23/2019] [Accepted: 10/01/2019] [Indexed: 11/16/2022]
Abstract
Basic research in rodents has shown that adult hippocampal neurogenesis (AHN) plays a key role in neuropsychiatric disorders that compromise hippocampal functioning. The discovery that dependence-inducing drugs regulate AHN has led to escalating interest in the potential involvement of AHN in drug addiction over the last decade, with cocaine being one of the most frequently investigated drugs. This review argues that, unlike other drugs of abuse, preclinical studies do not, overall, support that cocaine induces a marked or persistent impairment in AHN. Nevertheless, experimental reduction of AHN consistently exacerbates vulnerability to cocaine. Interestingly, preliminary evidence suggests that, on the contrary, increasing AHN might help both to prevent and treat addiction.
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Affiliation(s)
- Estela Castilla-Ortega
- Instituto de Investigación Biomédica de Málaga-IBIMA, Spain; Unidad de Gestión Clínica de Salud Mental, Hospital Regional Universitario de Málaga, Spain.
| | - Luis J Santín
- Instituto de Investigación Biomédica de Málaga-IBIMA, Spain; Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Facultad de Psicología, Universidad de Málaga, Spain.
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14
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Rivera PD, Simmons SJ, Reynolds RP, Just AL, Birnbaum SG, Eisch AJ. Image-guided cranial irradiation-induced ablation of dentate gyrus neurogenesis impairs extinction of recent morphine reward memories. Hippocampus 2019; 29:726-735. [PMID: 30779299 DOI: 10.1002/hipo.23071] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 12/10/2018] [Accepted: 12/17/2018] [Indexed: 12/25/2022]
Abstract
Dentate gyrus adult neurogenesis is implicated in the formation of hippocampal-dependent contextual associations. However, the role of adult neurogenesis during reward-based context-dependent paradigms-such as conditioned place preference (CPP)-is understudied. Therefore, we used image-guided, hippocampal-targeted X-ray irradiation (IG-IR) and morphine CPP to explore whether dentate gyrus adult neurogenesis plays a role in reward memories created in adult C57BL/6J male mice. In addition, as adult neurogenesis appears to participate to a greater extent in retrieval and extinction of recent (<48 hr posttraining) versus remote (>1 week posttraining) memories, we specifically examined the role of adult neurogenesis in reward-associated contextual memories probed at recent and remote timepoints. Six weeks post-IG-IR or Sham treatment, mice underwent morphine CPP. Using separate groups, retrieval of recent and remote reward memories was found to be similar between IG-IR and Sham treatments. Interestingly, IG-IR mice showed impaired extinction-or increased persistence-of the morphine-associated reward memory when it was probed 24-hr (recent) but not 3-weeks (remote) postconditioning relative to Sham mice. Taken together, these data show that hippocampal-directed irradiation and the associated decrease in dentate gyrus adult neurogenesis affect the persistence of recently-but not remotely-probed reward memory. These data indicate a novel role for adult neurogenesis in reward-based memories and particularly the extinction rate of these memories. Consideration of this work may lead to better understanding of extinction-based behavioral interventions for psychiatric conditions characterized by dysregulated reward processing.
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Affiliation(s)
- Phillip D Rivera
- Department of Psychiatry, UT Southwestern Medical Center, Dallas, Texas
| | - Steven J Simmons
- Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Ryan P Reynolds
- Department of Psychiatry, UT Southwestern Medical Center, Dallas, Texas.,Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania
| | - Alanna L Just
- Department of Psychiatry, UT Southwestern Medical Center, Dallas, Texas
| | - Shari G Birnbaum
- Department of Psychiatry, UT Southwestern Medical Center, Dallas, Texas
| | - Amelia J Eisch
- Department of Psychiatry, UT Southwestern Medical Center, Dallas, Texas.,Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, Philadelphia, Pennsylvania.,Department of Neuroscience, Perelman School of Medicine, University of Pennsylvania, Philadelphia, Pennsylvania
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15
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Depleting adult dentate gyrus neurogenesis increases cocaine-seeking behavior. Mol Psychiatry 2019; 24:312-320. [PMID: 29507372 DOI: 10.1038/s41380-018-0038-0] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Revised: 01/16/2018] [Accepted: 02/02/2018] [Indexed: 12/11/2022]
Abstract
The hippocampus is the main locus for adult dentate gyrus (DG) neurogenesis. A number of studies have shown that aberrant DG neurogenesis correlates with many neuropsychiatric disorders, including drug addiction. Although clear causal relationships have been established between DG neurogenesis and memory dysfunction or mood-related disorders, evidence of the causal role of DG neurogenesis in drug-seeking behaviors has not been established. Here we assessed the role of new DG neurons in cocaine self-administration using an inducible transgenic approach that selectively depletes adult DG neurogenesis. Our results show that transgenic mice with decreased adult DG neurogenesis exhibit increased motivation to self-administer cocaine and a higher seeking response to cocaine-related cues. These results identify adult hippocampal neurogenesis as a key factor in vulnerability to cocaine addiction.
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16
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Goode TD, Maren S. Common neurocircuitry mediating drug and fear relapse in preclinical models. Psychopharmacology (Berl) 2019; 236:415-437. [PMID: 30255379 PMCID: PMC6373193 DOI: 10.1007/s00213-018-5024-3] [Citation(s) in RCA: 47] [Impact Index Per Article: 9.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2018] [Accepted: 09/03/2018] [Indexed: 12/21/2022]
Abstract
BACKGROUND Comorbidity of anxiety disorders, stressor- and trauma-related disorders, and substance use disorders is extremely common. Moreover, therapies that reduce pathological fear and anxiety on the one hand, and drug-seeking on the other, often prove short-lived and are susceptible to relapse. Considerable advances have been made in the study of the neurobiology of both aversive and appetitive extinction, and this work reveals shared neural circuits that contribute to both the suppression and relapse of conditioned responses associated with trauma or drug use. OBJECTIVES The goal of this review is to identify common neural circuits and mechanisms underlying relapse across domains of addiction biology and aversive learning in preclinical animal models. We focus primarily on neural circuits engaged during the expression of relapse. KEY FINDINGS After extinction, brain circuits involving the medial prefrontal cortex and hippocampus come to regulate the expression of conditioned responses by the amygdala, bed nucleus of the stria terminalis, and nucleus accumbens. During relapse, hippocampal projections to the prefrontal cortex inhibit the retrieval of extinction memories resulting in a loss of inhibitory control over fear- and drug-associated conditional responding. CONCLUSIONS The overlapping brain systems for both fear and drug memories may explain the co-occurrence of fear and drug-seeking behaviors.
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Affiliation(s)
- Travis D Goode
- Department of Psychological and Brain Sciences and Institute for Neuroscience, Texas A&M University, 301 Old Main Dr., College Station, TX, 77843-3474, USA
| | - Stephen Maren
- Department of Psychological and Brain Sciences and Institute for Neuroscience, Texas A&M University, 301 Old Main Dr., College Station, TX, 77843-3474, USA.
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17
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Luján MÁ, Castro-Zavala A, Alegre-Zurano L, Valverde O. Repeated Cannabidiol treatment reduces cocaine intake and modulates neural proliferation and CB1R expression in the mouse hippocampus. Neuropharmacology 2018; 143:163-175. [DOI: 10.1016/j.neuropharm.2018.09.043] [Citation(s) in RCA: 63] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2018] [Revised: 09/04/2018] [Accepted: 09/26/2018] [Indexed: 12/18/2022]
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18
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Hayes DM, Nickell CG, Chen KY, McClain JA, Heath MM, Deeny MA, Nixon K. Activation of neural stem cells from quiescence drives reactive hippocampal neurogenesis after alcohol dependence. Neuropharmacology 2018; 133:276-288. [PMID: 29378214 PMCID: PMC6620048 DOI: 10.1016/j.neuropharm.2018.01.032] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2017] [Revised: 11/30/2017] [Accepted: 01/24/2018] [Indexed: 02/07/2023]
Abstract
Neural stem cell-driven adult neurogenesis contributes to the integrity of the hippocampus. Excessive alcohol consumption in alcoholism results in hippocampal degeneration that may recover with abstinence. Reactive, increased adult neurogenesis during abstinence following alcohol dependence may contribute to recovery, but the mechanism driving reactive neurogenesis is not known. Therefore, adult, male rats were exposed to alcohol for four days and various markers were used to examine cell cycle dynamics, the percentage and number of neural progenitor cell subtypes, and the percentage of quiescent versus activated progenitors. Using a screen for cell cycle perturbation, we showed that the cell cycle is not likely altered at 7 days in abstinence. As the vast majority of Bromodeoxyuridine-positive (+) cells were co-labeled with progenitor cell marker, Sox2, we then developed a quadruple fluorescent labeling scheme to examine Type-1, -2a, -2b and -3 progenitor cells simultaneously. Prior alcohol dependence indiscriminately increased all subtypes at 7 days, the peak of the reactive proliferation. An evaluation of the time course of reactive cell proliferation revealed that cells begin proliferating at 5 days post alcohol, where only actively dividing Type 2 progenitors were increased by alcohol. Furthermore, prior alcohol increased the percentage of actively dividing Sox2+ progenitors, which supported that reactive neurogenesis is likely due to the activation of progenitors out of quiescence. These observations were associated with granule cell number returning to normal at 28 days. Therefore, activating stem and progenitor cells out of quiescence may be the mechanism underlying hippocampal recovery in abstinence following alcohol dependence.
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Affiliation(s)
- Dayna M Hayes
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY 40536-0596, USA.
| | - Chelsea G Nickell
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY 40536-0596, USA.
| | - Kevin Y Chen
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY 40536-0596, USA.
| | - Justin A McClain
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY 40536-0596, USA.
| | - Megan M Heath
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY 40536-0596, USA.
| | - M Ayumi Deeny
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY 40536-0596, USA.
| | - Kimberly Nixon
- Department of Pharmaceutical Sciences, College of Pharmacy, University of Kentucky, Lexington, KY 40536-0596, USA.
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19
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Bulin SE, Mendoza ML, Richardson DR, Song KH, Solberg TD, Yun S, Eisch AJ. Dentate gyrus neurogenesis ablation via cranial irradiation enhances morphine self-administration and locomotor sensitization. Addict Biol 2018. [PMID: 28626932 DOI: 10.1111/adb.12524] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Adult dentate gyrus (DG) neurogenesis is important for hippocampal-dependent learning and memory, but the role of new neurons in addiction-relevant learning and memory is unclear. To test the hypothesis that neurogenesis is involved in the vulnerability to morphine addiction, we ablated adult DG neurogenesis and examined morphine self-administration (MSA) and locomotor sensitization. Male Sprague-Dawley rats underwent hippocampal-focused, image-guided X-ray irradiation (IRR) to eliminate new DG neurons or sham treatment (Sham). Six weeks later, rats underwent either MSA (Sham = 16, IRR = 15) or locomotor sensitization (Sham = 12, IRR = 12). Over 21 days of MSA, IRR rats self-administered ~70 percent more morphine than Sham rats. After 28 days of withdrawal, IRR rats pressed the active lever 40 percent more than Sham during extinction. This was not a general enhancement of learning or locomotion, as IRR and Sham groups had similar operant learning and inactive lever presses. For locomotor sensitization, both IRR and Sham rats sensitized, but IRR rats sensitized faster and to a greater extent. Furthermore, dose-response revealed that IRR rats were more sensitive at a lower dose. Importantly, these increases in locomotor activity were not apparent after acute morphine administration and were not a byproduct of irradiation or post-irradiation recovery time. Therefore, these data, along with other previously published data, indicate that reduced hippocampal neurogenesis confers vulnerability for multiple classes of drugs. Thus, therapeutics to specifically increase or stabilize hippocampal neurogenesis could aid in preventing initial addiction as well as future relapse.
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Affiliation(s)
- Sarah E. Bulin
- Department of Psychiatry; University of Texas Southwestern Medical Center; Dallas TX USA
- Department of Pharmacology; University of Texas Health Science Center; San Antonio TX USA
| | - Matthew L. Mendoza
- Department of Psychiatry; University of Texas Southwestern Medical Center; Dallas TX USA
| | - Devon R. Richardson
- Department of Psychiatry; University of Texas Southwestern Medical Center; Dallas TX USA
| | - Kwang H. Song
- Department of Radiology Oncology; University of Texas Southwestern Medical Center; Dallas TX USA
- Texas Oncology PA; Fort Worth TX USA
| | - Timothy D. Solberg
- Department of Radiology Oncology; University of Texas Southwestern Medical Center; Dallas TX USA
- Department of Radiation Oncology; University of California; San Francisco CA USA
| | - Sanghee Yun
- Mahoney Institute of Neurosciences; University of Pennsylvania Perelman School of Medicine; Philadelphia PA USA
- Department of Anesthesiology and Critical Care Medicine; Children's Hospital of Philadelphia; Philadelphia PA USA
| | - Amelia J. Eisch
- Department of Psychiatry; University of Texas Southwestern Medical Center; Dallas TX USA
- Mahoney Institute of Neurosciences; University of Pennsylvania Perelman School of Medicine; Philadelphia PA USA
- Department of Anesthesiology and Critical Care Medicine; Children's Hospital of Philadelphia; Philadelphia PA USA
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20
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Galinato MH, Takashima Y, Fannon MJ, Quach LW, Morales Silva RJ, Mysore KK, Terranova MJ, Dutta RR, Ostrom RW, Somkuwar SS, Mandyam CD. Neurogenesis during Abstinence Is Necessary for Context-Driven Methamphetamine-Related Memory. J Neurosci 2018; 38:2029-2042. [PMID: 29363584 PMCID: PMC5824740 DOI: 10.1523/jneurosci.2011-17.2018] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2017] [Revised: 12/05/2017] [Accepted: 01/09/2018] [Indexed: 12/22/2022] Open
Abstract
Abstinence from methamphetamine addiction enhances proliferation and differentiation of neural progenitors and increases adult neurogenesis in the dentate gyrus (DG). We hypothesized that neurogenesis during abstinence contributes to context-driven drug-seeking behaviors. To test this hypothesis, the pharmacogenetic rat model (GFAP-TK rats) was used to conditionally and specifically ablate neurogenesis in the DG. Male GFAP-TK rats were trained to self-administer methamphetamine or sucrose and were administered the antiviral drug valganciclovir (Valcyte) to produce apoptosis of actively dividing GFAP type 1 stem-like cells to inhibit neurogenesis during abstinence. Hippocampus tissue was stained for Ki-67, NeuroD, and DCX to measure levels of neural progenitors and immature neurons, and was stained for synaptoporin to determine alterations in mossy fiber tracts. DG-enriched tissue punches were probed for CaMKII to measure alterations in plasticity-related proteins. Whole-cell patch-clamp recordings were performed in acute brain slices from methamphetamine naive (controls) and methamphetamine experienced animals (+/-Valcyte). Spontaneous EPSCs and intrinsic excitability were recorded from granule cell neurons (GCNs). Reinstatement of methamphetamine seeking enhanced autophosphorylation of CaMKII, reduced mossy fiber density, and induced hyperexcitability of GCNs. Inhibition of neurogenesis during abstinence prevented context-driven methamphetamine seeking, and these effects correlated with reduced autophosphorylation of CaMKII, increased mossy fiber density, and reduced the excitability of GCNs. Context-driven sucrose seeking was unaffected. Together, the loss-of-neurogenesis data demonstrate that neurogenesis during abstinence assists with methamphetamine context-driven memory in rats, and that neurogenesis during abstinence is essential for the expression of synaptic proteins and plasticity promoting context-driven drug memory.SIGNIFICANCE STATEMENT Our work uncovers a mechanistic relationship between neurogenesis in the dentate gyrus and drug seeking. We report that the suppression of excessive neurogenesis during abstinence from methamphetamine addiction by a confirmed phamacogenetic approach blocked context-driven methamphetamine reinstatement and prevented maladaptive changes in expression and activation of synaptic proteins and basal synaptic function associated with learning and memory in the dentate gyrus. Our study is the first to demonstrate an interesting and dysfunctional role of adult hippocampal neurogenesis during abstinence to drug-seeking behavior in animals self-administering escalating amounts of methamphetamine. Together, these results support a direct role for the importance of adult neurogenesis during abstinence in compulsive-like drug reinstatement.
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Affiliation(s)
- Melissa H Galinato
- Departments of Neuroscience
- Veterans Medical Research Foundation, VA San Diego Healthcare System, San Diego, California 92161, and
- Department of Neuroscience, The Scripps Research Institute, La Jolla, California 92037
| | - Yoshio Takashima
- Anesthesiology, University of California San Diego, San Diego, California 92093
- Veterans Medical Research Foundation, VA San Diego Healthcare System, San Diego, California 92161, and
| | - McKenzie J Fannon
- Veterans Medical Research Foundation, VA San Diego Healthcare System, San Diego, California 92161, and
| | - Leon W Quach
- Veterans Medical Research Foundation, VA San Diego Healthcare System, San Diego, California 92161, and
| | | | - Karthik K Mysore
- Veterans Medical Research Foundation, VA San Diego Healthcare System, San Diego, California 92161, and
| | - Michael J Terranova
- Veterans Medical Research Foundation, VA San Diego Healthcare System, San Diego, California 92161, and
| | - Rahul R Dutta
- Department of Neuroscience, The Scripps Research Institute, La Jolla, California 92037
| | - Ryan W Ostrom
- Veterans Medical Research Foundation, VA San Diego Healthcare System, San Diego, California 92161, and
| | - Sucharita S Somkuwar
- Veterans Medical Research Foundation, VA San Diego Healthcare System, San Diego, California 92161, and
| | - Chitra D Mandyam
- Departments of Neuroscience,
- Anesthesiology, University of California San Diego, San Diego, California 92093
- Veterans Medical Research Foundation, VA San Diego Healthcare System, San Diego, California 92161, and
- Department of Neuroscience, The Scripps Research Institute, La Jolla, California 92037
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21
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Maza-Quiroga R, García-Marchena N, Romero-Sanchiz P, Barrios V, Pedraz M, Serrano A, Nogueira-Arjona R, Ruiz JJ, Soria M, Campos R, Chowen JA, Argente J, Torrens M, López-Gallardo M, Marco EM, Rodríguez de Fonseca F, Pavón FJ, Araos P. Evaluation of plasma cytokines in patients with cocaine use disorders in abstinence identifies transforming growth factor alpha (TGFα) as a potential biomarker of consumption and dual diagnosis. PeerJ 2017; 5:e3926. [PMID: 29038767 PMCID: PMC5641428 DOI: 10.7717/peerj.3926] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2017] [Accepted: 09/24/2017] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND Cocaine use disorder (CUD) is a complex health condition, especially when it is accompanied by comorbid psychiatric disorders (dual diagnosis). Dual diagnosis is associated with difficulties in the stratification and treatment of patients. One of the major challenges in clinical practice of addiction psychiatry is the lack of objective biological markers that indicate the degree of consumption, severity of addiction, level of toxicity and response to treatment in patients with CUD. These potential biomarkers would be fundamental players in the diagnosis, stratification, prognosis and therapeutic orientation in addiction. Due to growing evidence of the involvement of the immune system in addiction and psychiatric disorders, we tested the hypothesis that patients with CUD in abstinence might have altered circulating levels of signaling proteins related to systemic inflammation. METHODS The study was designed as a cross-sectional study of CUD treatment-seeking patients. These patients were recruited from outpatient programs in the province of Malaga (Spain). The study was performed with a total of 160 white Caucasian subjects, who were divided into the following groups: patients diagnosed with CUD in abstinence (N = 79, cocaine group) and matched control subjects (N = 81, control group). Participants were clinically evaluated with the diagnostic interview PRISM according to the DSM-IV-TR, and blood samples were collected for the determination of chemokine C-C motif ligand 11 (CCL11, eotaxin-1), interferon gamma (IFNγ), interleukin-4 (IL-4), interleukin-8 (IL-8), interleukin-17α (IL-17α), macrophage inflammatory protein 1α (MIP-1α) and transforming growth factor α (TGFα) levels in the plasma. Clinical and biochemical data were analyzed in order to find relationships between variables. RESULTS While 57% of patients with CUD were diagnosed with dual diagnosis, approximately 73% of patients had other substance use disorders. Cocaine patients displayed greater cocaine symptom severity when they were diagnosed with psychiatric comorbidity. Regarding inflammatory factors, we observed significantly lower plasma levels of IL-17α (p < 0.001), MIP-1α (p < 0.001) and TGFα (p < 0.05) in the cocaine group compared with the levels in the control group. Finally, there was a significant primary effect of dual diagnosis on the plasma concentrations of TGFα (p < 0.05) in the cocaine group, and these levels were lower in patients with dual diagnoses. DISCUSSION IL-17α, MIP-1α and TGFα levels are different between the cocaine and control groups, and TGFα levels facilitate the identification of patients with dual diagnosis. Because TGFα reduction is associated with enhanced responses to cocaine in preclinical models, we propose TGFα as a potential biomarker of complex CUD in humans.
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Affiliation(s)
- Rosa Maza-Quiroga
- Hospital Regional Universitario de Málaga, Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
| | - Nuria García-Marchena
- Hospital Regional Universitario de Málaga, Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
| | - Pablo Romero-Sanchiz
- Hospital Regional Universitario de Málaga, Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
| | - Vicente Barrios
- Department of Endocrinology, Hospital Universitario Niño Jesús, Madrid, Spain
| | - María Pedraz
- Hospital Regional Universitario de Málaga, Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
| | - Antonia Serrano
- Hospital Regional Universitario de Málaga, Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
| | - Raquel Nogueira-Arjona
- Hospital Regional Universitario de Málaga, Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
| | - Juan Jesus Ruiz
- Diputación de Málaga, Centro Provincial de Drogodependencias, Málaga, Spain
| | - Maribel Soria
- Diputación de Málaga, Centro Provincial de Drogodependencias, Málaga, Spain
| | - Rafael Campos
- Diputación de Málaga, Centro Provincial de Drogodependencias, Málaga, Spain
| | - Julie Ann Chowen
- Department of Endocrinology, Hospital Universitario Niño Jesús, Madrid, Spain
| | - Jesus Argente
- Department of Endocrinology, Hospital Universitario Niño Jesús, Madrid, Spain
| | - Marta Torrens
- Institut de Neuropsiquiatria i Addiccions (INAD) del Parc de Salut Mar, Barcelona, Spain
| | | | - Eva María Marco
- Department of Physiology II Faculty of Biology, Universidad Complutense de Madrid, Madrid, Spain
| | - Fernando Rodríguez de Fonseca
- Hospital Regional Universitario de Málaga, Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
| | - Francisco Javier Pavón
- Hospital Regional Universitario de Málaga, Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Málaga, Spain
| | - Pedro Araos
- Department of Physiology II Faculty of Biology, Universidad Complutense de Madrid, Madrid, Spain
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22
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Castilla-Ortega E, Ladrón de Guevara-Miranda D, Serrano A, Pavón FJ, Suárez J, Rodríguez de Fonseca F, Santín LJ. The impact of cocaine on adult hippocampal neurogenesis: Potential neurobiological mechanisms and contributions to maladaptive cognition in cocaine addiction disorder. Biochem Pharmacol 2017; 141:100-117. [DOI: 10.1016/j.bcp.2017.05.003] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Accepted: 05/03/2017] [Indexed: 12/14/2022]
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23
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Parvaz MA, Moeller SJ, Uquillas FD, Pflumm A, Maloney T, Alia-Klein N, Goldstein RZ. Prefrontal gray matter volume recovery in treatment-seeking cocaine-addicted individuals: a longitudinal study. Addict Biol 2017; 22:1391-1401. [PMID: 27126701 PMCID: PMC5085900 DOI: 10.1111/adb.12403] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2015] [Revised: 03/08/2016] [Accepted: 03/16/2016] [Indexed: 12/17/2022]
Abstract
Deficits in prefrontal cortical (PFC) function have been consistently reported in individuals with cocaine use disorders (iCUD), and have separately been shown to improve with longer-term abstinence. However, it is less clear whether the PFC structural integrity possibly underlying these deficits is also modulated by sustained reduction in drug use in iCUD. Here, T1-weighted magnetic resonance imaging scans were acquired, and performance on a neuropsychological test battery was assessed, in 19 initially abstinent treatment-seeking iCUD, first at baseline and then after six months of significantly reduced or no drug use (follow-up). A comparison cohort of 12 healthy controls was also scanned twice with a similar inter-scan interval. The iCUD showed increased gray matter volume in the left inferior frontal gyrus and bilaterally in the ventromedial prefrontal cortex at follow-up compared to baseline; healthy controls, as expected, showed no changes over this same time period. The iCUD also showed improved decision making and cognitive flexibility, with the latter correlated significantly with the gray matter volume increases in the inferior frontal gyrus. Given its association with improved cognitive function, the longitudinal recovery in cortical gray matter volume, particularly in regions where structure and function are adversely affected by chronic drug use, reflects a quantifiable positive impact of significantly reduced drug use on cortical structural integrity.
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Affiliation(s)
| | | | | | | | - Tom Maloney
- Icahn School of Medicine at Mount Sinai, New York, NY
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24
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Ladrón de Guevara-Miranda D, Millón C, Rosell-Valle C, Pérez-Fernández M, Missiroli M, Serrano A, Pavón FJ, Rodríguez de Fonseca F, Martínez-Losa M, Álvarez-Dolado M, Santín LJ, Castilla-Ortega E. Long-lasting memory deficits in mice withdrawn from cocaine are concomitant with neuroadaptations in hippocampal basal activity, GABAergic interneurons and adult neurogenesis. Dis Model Mech 2017; 10:323-336. [PMID: 28138095 PMCID: PMC5374316 DOI: 10.1242/dmm.026682] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2016] [Accepted: 01/23/2017] [Indexed: 01/01/2023] Open
Abstract
Cocaine addiction disorder is notably aggravated by concomitant cognitive and emotional pathology that impedes recovery. We studied whether a persistent cognitive/emotional dysregulation in mice withdrawn from cocaine holds a neurobiological correlate within the hippocampus, a limbic region with a key role in anxiety and memory but that has been scarcely investigated in cocaine addiction research. Mice were submitted to a chronic cocaine (20 mg/kg/day for 12 days) or vehicle treatment followed by 44 drug-free days. Some mice were then assessed on a battery of emotional (elevated plus-maze, light/dark box, open field, forced swimming) and cognitive (object and place recognition memory, cocaine-induced conditioned place preference, continuous spontaneous alternation) behavioral tests, while other mice remained in their home cage. Relevant hippocampal features [basal c-Fos activity, GABA+, parvalbumin (PV)+ and neuropeptide Y (NPY)+ interneurons and adult neurogenesis (cell proliferation and immature neurons)] were immunohistochemically assessed 73 days after the chronic cocaine or vehicle protocol. The cocaine-withdrawn mice showed no remarkable exploratory or emotional alterations but were consistently impaired in all the cognitive tasks. All the cocaine-withdrawn groups, independent of whether they were submitted to behavioral assessment or not, showed enhanced basal c-Fos expression and an increased number of GABA+ cells in the dentate gyrus. Moreover, the cocaine-withdrawn mice previously submitted to behavioral training displayed a blunted experience-dependent regulation of PV+ and NPY+ neurons in the dentate gyrus, and neurogenesis in the hippocampus. Results highlight the importance of hippocampal neuroplasticity for the ingrained cognitive deficits present during chronic cocaine withdrawal.
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Affiliation(s)
- David Ladrón de Guevara-Miranda
- Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Instituto de Investigación Biomédica de Málaga (IBIMA), Facultad de Psicología, Universidad de Málaga, 29071 Málaga, Spain
| | - Carmelo Millón
- Departamento de Fisiología, Instituto de Investigación Biomédica de Málaga (IBIMA), Facultad de Medicina, Universidad de Málaga, 29071 Málaga, Spain
| | - Cristina Rosell-Valle
- Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Instituto de Investigación Biomédica de Málaga (IBIMA), Facultad de Psicología, Universidad de Málaga, 29071 Málaga, Spain
| | - Mercedes Pérez-Fernández
- Laboratory of Cell-based Therapy for Neuropathologies, Centro Andaluz de Biología Molecular y Medicina Regenerativa (CABIMER), 41092 Sevilla, Spain
| | - Michele Missiroli
- Laboratory of Cell-based Therapy for Neuropathologies, Centro Andaluz de Biología Molecular y Medicina Regenerativa (CABIMER), 41092 Sevilla, Spain
| | - Antonia Serrano
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, 29010 Málaga, Spain
| | - Francisco J Pavón
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, 29010 Málaga, Spain
| | - Fernando Rodríguez de Fonseca
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, 29010 Málaga, Spain
| | - Magdalena Martínez-Losa
- Laboratory of Cell-based Therapy for Neuropathologies, Centro Andaluz de Biología Molecular y Medicina Regenerativa (CABIMER), 41092 Sevilla, Spain
| | - Manuel Álvarez-Dolado
- Laboratory of Cell-based Therapy for Neuropathologies, Centro Andaluz de Biología Molecular y Medicina Regenerativa (CABIMER), 41092 Sevilla, Spain
| | - Luis J Santín
- Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Instituto de Investigación Biomédica de Málaga (IBIMA), Facultad de Psicología, Universidad de Málaga, 29071 Málaga, Spain
| | - Estela Castilla-Ortega
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, 29010 Málaga, Spain
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25
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Selvas A, Coria SM, Kastanauskaite A, Fernaud-Espinosa I, DeFelipe J, Ambrosio E, Miguéns M. Rat-strain dependent changes of dendritic and spine morphology in the hippocampus after cocaine self-administration. Addict Biol 2017; 22:78-92. [PMID: 26332690 DOI: 10.1111/adb.12294] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2015] [Revised: 07/15/2015] [Accepted: 07/15/2015] [Indexed: 12/24/2022]
Abstract
We previously showed that cocaine self-administration increases spine density in CA1 hippocampal neurons in Lewis (LEW) but not in Fischer 344 (F344) rats. Dendritic spine morphology is intimately related to its function. Thus, we conducted a 3D morphological analysis of CA1 dendrites and dendritic spines in these two strains of rats. Strain-specific differences were observed prior to cocaine self-administration: LEW rats had significantly larger dendritic diameters but lower spine density than the F344 strain. After cocaine self-administration, proximal dendritic volume, dendritic surface area and spine density were increased in LEW rats, where a higher percentage of larger spines were also observed. In addition, we found a strong positive correlation between dendritic volume and spine morphology, and a moderate correlation between dendritic volume and spine density in cocaine self-administered LEW rats, an effect that was not evident in any other condition. By contrast, after cocaine self-administration, F334 rats showed decreased spine head volumes. Our findings suggest that genetic differences could play a key role in the structural plasticity induced by cocaine in CA1 pyramidal neurons. These cocaine-induced alterations could be related to differences in the memory processing of drug reward cues that could potentially explain differential individual vulnerability to cocaine addiction.
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Affiliation(s)
- Abraham Selvas
- Departamento de Psicobiología, Facultad de Psicología; Universidad Nacional de Educación a Distancia, (UNED); Spain
- Laboratorio Cajal de Circuitos Corticales (CTB); Universidad Politécnica de Madrid; Spain
| | - Santiago M. Coria
- Departamento de Psicobiología, Facultad de Psicología; Universidad Nacional de Educación a Distancia, (UNED); Spain
| | - Asta Kastanauskaite
- Laboratorio Cajal de Circuitos Corticales (CTB); Universidad Politécnica de Madrid; Spain
| | | | - Javier DeFelipe
- Laboratorio Cajal de Circuitos Corticales (CTB); Universidad Politécnica de Madrid; Spain
- Instituto Cajal (CSIC); Spain
- CIBERNED; Spain
| | - Emilio Ambrosio
- Departamento de Psicobiología, Facultad de Psicología; Universidad Nacional de Educación a Distancia, (UNED); Spain
| | - Miguel Miguéns
- Departamento de Psicología Básica I, Facultad de Psicología; Universidad Nacional de Educación a Distancia (UNED); Spain
- Laboratorio Cajal de Circuitos Corticales (CTB); Universidad Politécnica de Madrid; Spain
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26
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Pomierny-Chamiolo L, Miszkiel J, Frankowska M, Bystrowska B, Filip M. Cocaine self-administration, extinction training and drug-induced relapse change metabotropic glutamate mGlu5 receptors expression: Evidence from radioligand binding and immunohistochemistry assays. Brain Res 2016; 1655:66-76. [PMID: 27871824 DOI: 10.1016/j.brainres.2016.11.014] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2016] [Revised: 10/28/2016] [Accepted: 11/11/2016] [Indexed: 12/24/2022]
Abstract
Several behavioral findings highlight the importance of glutamatergic transmission and its metabotropic receptor type 5 (mGlu5) in the controlling of cocaine reward and seeking behaviors. The molecular or neurochemical nature of such interactions is not well recognized, so in the present paper we determine if cocaine self-administration and extinction/reinstatement models with the yoked triad control procedure alter mGlu5 receptor density in rats. [³H]MPEP was used to evaluate mGlu5 receptors density and affinity in selected brain structures, while immunofluorescence analysis was used to detect changes in mGlu5 receptors' brain location. Cocaine self-administration and yoked cocaine delivery evoked a significant elevation in mGlu5 receptors' density in the dorsal striatum, while receptor protein expression was importantly elevated in the substantia nigra and reduced in the nucleus accumbens shell. Cocaine administration followed by 10 extinction training sessions resulted in biphasic mGlu5 receptor density changes in the prefrontal cortex-nucleus accumbens pathway. mGlu5 receptors' up-regulation was noted for cocaine self-administration and extinction training in the hippocampus and in yoked cocaine controls following drug abstinence in the dorsal striatum. A cocaine priming dose (but not a saline priming) resulted in a significant decrease of mGlu5 receptors' density in the nucleus accumbens of rats previously treated with the drug and in the hippocampus of rats previously self-administered cocaine. The latter decrease in mGlu5 receptors' density and protein expression in the hippocampus was parallel to an increase in [³H]MPEP affinity and opposite to a rise observed after single cocaine administration (ip) to drug-naïve yoked saline controls. Additionally, we also observed a significant elevation in the protein expression of the tested receptors in the limbic cortex in both cocaine groups. The present results shown modality dependent and brain-region specific changes in mGlu5 receptors' localization and membrane specific binding.
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Affiliation(s)
- Lucyna Pomierny-Chamiolo
- Department of Toxicology, Faculty of Pharmacy, Jagiellonian University, Medical College, Medyczna 9, PL 30-688 Kraków, Poland.
| | - Joanna Miszkiel
- Institute of Pharmacology Polish Academy of Sciences, Laboratory of Drug Addiction Pharmacology, Smętna 12, PL 31-343 Kraków, Poland
| | - Malgorzata Frankowska
- Institute of Pharmacology Polish Academy of Sciences, Laboratory of Drug Addiction Pharmacology, Smętna 12, PL 31-343 Kraków, Poland
| | - Beata Bystrowska
- Department of Toxicology, Faculty of Pharmacy, Jagiellonian University, Medical College, Medyczna 9, PL 30-688 Kraków, Poland
| | - Malgorzata Filip
- Institute of Pharmacology Polish Academy of Sciences, Laboratory of Drug Addiction Pharmacology, Smętna 12, PL 31-343 Kraków, Poland
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27
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Kang E, Wen Z, Song H, Christian KM, Ming GL. Adult Neurogenesis and Psychiatric Disorders. Cold Spring Harb Perspect Biol 2016; 8:cshperspect.a019026. [PMID: 26801682 DOI: 10.1101/cshperspect.a019026] [Citation(s) in RCA: 125] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Psychiatric disorders continue to be among the most challenging disorders to diagnose and treat because there is no single genetic or anatomical locus that is causative for the disease. Current treatments are often blunt tools used to ameliorate the most severe symptoms, at the risk of disrupting functional neural systems. There is a critical need to develop new therapeutic strategies that can target circumscribed functional or anatomical domains of pathology. Adult hippocampal neurogenesis may be one such domain. Here, we review the evidence suggesting that adult hippocampal neurogenesis plays a role in emotional regulation and forms of learning and memory that include temporal and spatial memory encoding and context discrimination, and that its dysregulation is associated with psychiatric disorders, such as affective disorders, schizophrenia, and drug addiction. Further, adult neurogenesis has proven to be an effective model to investigate basic processes of neuronal development and converging evidence suggests that aberrant neural development may be an etiological factor, even in late-onset diseases. Constitutive neurogenesis in the hippocampus of the mature brain reflects large-scale plasticity unique to this region and could be a potential hub for modulation of a subset of cognitive and affective behaviors that are affected by multiple psychiatric disorders.
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Affiliation(s)
- Eunchai Kang
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205 Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - Zhexing Wen
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205 Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - Hongjun Song
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205 Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205 The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205 Graduate Program in Cellular and Molecular Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - Kimberly M Christian
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205 Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
| | - Guo-Li Ming
- Institute for Cell Engineering, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205 Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205 The Solomon H. Snyder Department of Neuroscience, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205 Graduate Program in Cellular and Molecular Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205 Department of Psychiatry and Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205
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28
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Ohana D, Maayan R, Delayahu Y, Roska P, Ponizovsky AM, Weizman A, Yadid G, Yechiam E. Effect of dehydroepiandrosterone add-on therapy on mood, decision making and subsequent relapse of polydrug users. Addict Biol 2016; 21:885-94. [PMID: 25818161 DOI: 10.1111/adb.12241] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A major problem in the treatment of addiction is predicting and preventing relapse following a rehabilitation program. Recently, in preclinical rodent studies dehydroepiandrosterone (DHEA) was found to markedly improve the resistance to drug reuse. In a double-blind, placebo-controlled study, we examined the effect of DHEA on relapse rates in adult polydrug users taking part in a detoxification program enriched with intensive psychosocial interventions and aftercare. During treatment, participants (79 percent males, mean age 28) consumed DHEA (100 mg/day) or placebo daily for at least 30 days. Of the 121 initial volunteers, 64 participated for at least 1 month. While in treatment, DHEA reduced negative affect on the Positive and Negative Affect Scale (F = 4.25, P = 0.04). Furthermore, in a 16-month follow-up, we found that reuse rates in the DHEA condition were about a third compared with placebo (12 versus 38 percent; χ(2) = 5.03, P = 0.02). DHEA treatment also resulted in an increase in DHEA sulfate (DHEA-S) 1 month following treatment, and the level of DHEA-S predicted relapse in the follow-up assessment.
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Affiliation(s)
- David Ohana
- Max Wertheimer Minerva Center; Technion-Israel Institute of Technology; Israel
- Gonda Multidisciplinary Brain Research Center; Bar Ilan University; Israel
| | - Rachel Maayan
- Laboratory of Biological Psychiatry; Felsenstein Medical Research Center; Research Unit; Geha Mental Health Center; Tel-Aviv University; Israel
| | - Yael Delayahu
- Laboratory of Biological Psychiatry; Felsenstein Medical Research Center; Research Unit; Geha Mental Health Center; Tel-Aviv University; Israel
- Abarbanel Mental Health Center; Israel
| | - Paola Roska
- Department for the Treatment of Substance Abuse and Mental Health Services; Israeli Ministry of Health; Israel
- Hebrew University; Israel
| | - Alexander M. Ponizovsky
- Department for the Treatment of Substance Abuse and Mental Health Services; Israeli Ministry of Health; Israel
| | - Abraham Weizman
- Laboratory of Biological Psychiatry; Felsenstein Medical Research Center; Research Unit; Geha Mental Health Center; Tel-Aviv University; Israel
| | - Gal Yadid
- Gonda Multidisciplinary Brain Research Center; Bar Ilan University; Israel
| | - Eldad Yechiam
- Max Wertheimer Minerva Center; Technion-Israel Institute of Technology; Israel
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29
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Castilla-Ortega E, Blanco E, Serrano A, Ladrón de Guevara-Miranda D, Pedraz M, Estivill-Torrús G, Pavón FJ, Rodríguez de Fonseca F, Santín LJ. Pharmacological reduction of adult hippocampal neurogenesis modifies functional brain circuits in mice exposed to a cocaine conditioned place preference paradigm. Addict Biol 2016; 21:575-88. [PMID: 25870909 DOI: 10.1111/adb.12248] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
We investigated the role of adult hippocampal neurogenesis in cocaine-induced conditioned place preference (CPP) behaviour and the functional brain circuitry involved. Adult hippocampal neurogenesis was pharmacologically reduced with temozolomide (TMZ), and mice were tested for cocaine-induced CPP to study c-Fos expression in the hippocampus and in extrahippocampal addiction-related areas. Correlational and multivariate analysis revealed that, under normal conditions, the hippocampus showed widespread functional connectivity with other brain areas and strongly contributed to the functional brain module associated with CPP expression. However, the neurogenesis-reduced mice showed normal CPP acquisition but engaged an alternate brain circuit where the functional connectivity of the dentate gyrus was notably reduced and other areas (the medial prefrontal cortex, accumbens and paraventricular hypothalamic nucleus) were recruited instead of the hippocampus. A second experiment unveiled that mice acquiring the cocaine-induced CPP under neurogenesis-reduced conditions were delayed in extinguishing their drug-seeking behaviour. But if the inhibited neurons were generated after CPP acquisition, extinction was not affected but an enhanced long-term CPP retention was found, suggesting that some roles of the adult-born neurons may differ depending on whether they are generated before or after drug-contextual associations are established. Importantly, cocaine-induced reinstatement of CPP behaviour was increased in the TMZ mice, regardless of the time of neurogenesis inhibition. The results show that adult hippocampal neurogenesis sculpts the addiction-related functional brain circuits, and reduction of the adult-born hippocampal neurons increases cocaine seeking in the CPP model.
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Affiliation(s)
- Estela Castilla-Ortega
- Unidad de Gestión Clínica de Salud Mental; Instituto de Investigación Biomédica de Málaga (IBIMA); Hospital Regional Universitario de Málaga; Spain
| | - Eduardo Blanco
- Departament de Pedagogia i Psicología; Facultat d'Educació, Psicologia i Treball Social; Universitat de Lleida; Spain
| | - Antonia Serrano
- Unidad de Gestión Clínica de Salud Mental; Instituto de Investigación Biomédica de Málaga (IBIMA); Hospital Regional Universitario de Málaga; Spain
| | - David Ladrón de Guevara-Miranda
- Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento; Instituto de Investigación Biomédica de Málaga (IBIMA); Facultad de Psicología; Universidad de Málaga; Spain
| | - María Pedraz
- Unidad de Gestión Clínica de Salud Mental; Instituto de Investigación Biomédica de Málaga (IBIMA); Hospital Regional Universitario de Málaga; Spain
| | - Guillermo Estivill-Torrús
- Unidad de Gestión Clínica Intercentros de Neurociencias y ECAI de Microscopía; Instituto de Investigación Biomédica de Málaga (IBIMA); Hospitales Universitarios Regional de Málaga y Virgen de la Victoria; Spain
| | - Francisco Javier Pavón
- Unidad de Gestión Clínica de Salud Mental; Instituto de Investigación Biomédica de Málaga (IBIMA); Hospital Regional Universitario de Málaga; Spain
| | - Fernando Rodríguez de Fonseca
- Unidad de Gestión Clínica de Salud Mental; Instituto de Investigación Biomédica de Málaga (IBIMA); Hospital Regional Universitario de Málaga; Spain
| | - Luis J. Santín
- Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento; Instituto de Investigación Biomédica de Málaga (IBIMA); Facultad de Psicología; Universidad de Málaga; Spain
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Castilla-Ortega E, Serrano A, Blanco E, Araos P, Suárez J, Pavón FJ, Rodríguez de Fonseca F, Santín LJ. A place for the hippocampus in the cocaine addiction circuit: Potential roles for adult hippocampal neurogenesis. Neurosci Biobehav Rev 2016; 66:15-32. [PMID: 27118134 DOI: 10.1016/j.neubiorev.2016.03.030] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2015] [Revised: 03/08/2016] [Accepted: 03/08/2016] [Indexed: 02/07/2023]
Abstract
Cocaine addiction is a chronic brain disease in which the drug seeking habits and profound cognitive, emotional and motivational alterations emerge from drug-induced neuroadaptations on a vulnerable brain. Therefore, a 'cocaine addiction brain circuit' has been described to explain this disorder. Studies in both cocaine patients and rodents reveal the hippocampus as a main node in the cocaine addiction circuit. The contribution of the hippocampus to cocaine craving and the associated memories is essential to understand the chronic relapsing nature of addiction, which is the main obstacle for the recovery. Interestingly, the hippocampus holds a particular form of plasticity that is rare in the adult brain: the ability to generate new functional neurons. There is an active scientific debate on the contributions of these new neurons to the addicted brain. This review focuses on the potential role(s) of adult hippocampal neurogenesis (AHN) in cocaine addiction. Although the current evidence primarily originates from animal research, these preclinical studies support AHN as a relevant component for the hippocampal effects of cocaine.
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Affiliation(s)
- Estela Castilla-Ortega
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Spain.
| | - Antonia Serrano
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Spain
| | - Eduardo Blanco
- Departament de Pedagogia i Psicologia, Facultat d'Educació, Psicologia i Treball Social, Universitat de Lleida, Spain
| | - Pedro Araos
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Spain
| | - Juan Suárez
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Spain
| | - Francisco J Pavón
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Spain
| | - Fernando Rodríguez de Fonseca
- Unidad de Gestión Clínica de Salud Mental, Instituto de Investigación Biomédica de Málaga (IBIMA), Hospital Regional Universitario de Málaga, Spain
| | - Luis J Santín
- Departamento de Psicobiología y Metodología de las Ciencias del Comportamiento, Instituto de Investigación Biomédica de Málaga (IBIMA), Facultad de Psicología, Universidad de Málaga, Spain.
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Korpi ER, den Hollander B, Farooq U, Vashchinkina E, Rajkumar R, Nutt DJ, Hyytiä P, Dawe GS. Mechanisms of Action and Persistent Neuroplasticity by Drugs of Abuse. Pharmacol Rev 2015; 67:872-1004. [DOI: 10.1124/pr.115.010967] [Citation(s) in RCA: 101] [Impact Index Per Article: 11.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
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García-Cabrerizo R, Keller B, García-Fuster MJ. Hippocampal cell fate regulation by chronic cocaine during periods of adolescent vulnerability: Consequences of cocaine exposure during adolescence on behavioral despair in adulthood. Neuroscience 2015. [PMID: 26215918 DOI: 10.1016/j.neuroscience.2015.07.040] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Abstract
Given that adolescence represents a critical moment for shaping adult behavior and may predispose to disease vulnerability later in life, the aim of this study was to find a vulnerable period during adolescence in which hippocampal cell fate regulation was altered by cocaine exposure, and to evaluate the long-term consequences of a cocaine experience during adolescence in affecting hippocampal plasticity and behavioral despair in adulthood. Study I: Male rats were treated with cocaine (15mg/kg, i.p.) or saline for 7 consecutive days during adolescence (early post-natal day (PND) 33-39, mid PND 40-46, late PND 47-53). Hippocampal plasticity (i.e., cell fate regulation, cell genesis) was evaluated 24h after the last treatment dose during the course of adolescence (PND 40, PND 47, PND 54). Study II: The consequences of cocaine exposure during adolescence (PND 33-39 or PND 33-46; 7 or 14days) were measured in adulthood at the behavioral (i.e., forced swim test, PND 62-63) and molecular (hippocampal cell markers, PND 64) levels. Chronic cocaine during early adolescence dysregulated FADD forms only in the hippocampus (HC), as compared to other brain regions, and during mid adolescence, impaired cell proliferation (Ki-67) and increased PARP-1 cleavage (a cell death maker) in the HC. Interestingly, chronic cocaine exposure during adolescence did not alter the time adult rats spent immobile in the forced swim test. These results suggest that this paradigm of chronic cocaine administration during adolescence did not contribute to the later manifestation of behavioral despair (i.e., one pro-depressive symptom) as measured by the forced swim test in adulthood.
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Affiliation(s)
- R García-Cabrerizo
- Neurobiology of Drug Abuse Group, IUNICS/IdISPa, University of the Balearic Islands, Palma de Mallorca, Spain; Redes Temáticas de Investigación Cooperativa en Salud-Red de Trastornos Adictivos (RETICS-RTA), ISCIII, Madrid, Spain
| | - B Keller
- Neurobiology of Drug Abuse Group, IUNICS/IdISPa, University of the Balearic Islands, Palma de Mallorca, Spain; Redes Temáticas de Investigación Cooperativa en Salud-Red de Trastornos Adictivos (RETICS-RTA), ISCIII, Madrid, Spain
| | - M J García-Fuster
- Neurobiology of Drug Abuse Group, IUNICS/IdISPa, University of the Balearic Islands, Palma de Mallorca, Spain; Redes Temáticas de Investigación Cooperativa en Salud-Red de Trastornos Adictivos (RETICS-RTA), ISCIII, Madrid, Spain.
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Giannotti G, Caffino L, Malpighi C, Melfi S, Racagni G, Fumagalli F. A single exposure to cocaine during development elicits regionally-selective changes in basal basic Fibroblast Growth Factor (FGF-2) gene expression and alters the trophic response to a second injection. Psychopharmacology (Berl) 2015; 232:713-9. [PMID: 25124315 DOI: 10.1007/s00213-014-3708-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2014] [Accepted: 07/29/2014] [Indexed: 12/19/2022]
Abstract
RATIONALE During adolescence, the brain is maturing and more sensitive to drugs of abuse that can influence its developmental trajectory. Recently, attention has been focused on basic fibroblast growth factor (FGF-2) given that its administration early in life enhances the acquisition of cocaine self-administration and sensitization at adulthood (Turner et al. (Pharmacol Biochem Behav 92:100-4, 2009), Clinton et al. (Pharmacol Biochem Behav103:6-17, 2012)). Additionally, we found that abstinence from adolescent cocaine exposure long lastingly dysregulates FGF-2 transcription (Giannotti et al. (Psychopharmacology (Berl) 225:553-60, 2013 ). OBJECTIVES The objectives of the study are to evaluate if (1) a single injection of cocaine (20 mg/kg) at postnatal day 35 alters FGF-2 messenger RNA (mRNA) levels and (2) the first injection influences the trophic response to a second injection (10 mg/kg) provided 24 h or 7 days later. RESULTS We found regional differences in the FGF-2 expression pattern as either the first or the second injection of cocaine by themselves upregulated FGF-2 mRNA in the medial prefrontal cortex and nucleus accumbens while downregulating it in the hippocampus. The first injection influences the trophic response of the second. Of note, 24 h after the first injection, accumbal and hippocampal FGF-2 changes produced by cocaine in saline-pretreated rats were prevented in cocaine-pretreated rats. Conversely, in the medial prefrontal cortex and hippocampus 7 days after the first injection, the cocaine-induced FGF-2 changes were modified by the subsequent exposure to the psychostimulant. CONCLUSIONS These findings show that a single cocaine injection is sufficient to produce enduring changes in the adolescent brain and indicate that early cocaine priming alters the mechanisms regulating the trophic response in a brain region-specific fashion.
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Affiliation(s)
- Giuseppe Giannotti
- Dipartimento di Scienze Farmacologiche e Biomolecolari, Università degli Studi di Milano, Via Balzaretti 9, 20133, Milano, Italy
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Somkuwar SS, Staples MC, Galinato MH, Fannon MJ, Mandyam CD. Role of NG2 expressing cells in addiction: a new approach for an old problem. Front Pharmacol 2014; 5:279. [PMID: 25566075 PMCID: PMC4271769 DOI: 10.3389/fphar.2014.00279] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2014] [Accepted: 11/30/2014] [Indexed: 12/17/2022] Open
Abstract
Neuron-glial antigen 2 (NG2) is a proteoglycan expressed predominantly in oligodendrocyte progenitor cells (OPCs). NG2-expressing OPCs (NG2-OPCs) are self-renewing cells that are widely distributed in the gray and white matter areas of the central nervous system. NG2-OPCs can mature into premyelinating oligodendrocytes and myelinating oligodendroglia which serve as the primary source of myelin in the brain. This review characterizes NG2-OPCs in brain structure and function, conceptualizes the role of NG2-OPCs in brain regions associated with negative reinforcement and relapse to drug seeking and discusses how NG2-OPCs are regulated by neuromodulators linked to motivational withdrawal. We hope to provide the readers with an overview of the role of NG2-OPCs in brain structure and function in the context of negative affect state in substance abuse disorders and to integrate our current understanding of the physiological significance of the NG2-OPCs in the adult brain.
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Affiliation(s)
- Sucharita S Somkuwar
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute La Jolla, CA, USA
| | - Miranda C Staples
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute La Jolla, CA, USA
| | - Melissa H Galinato
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute La Jolla, CA, USA
| | - McKenzie J Fannon
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute La Jolla, CA, USA
| | - Chitra D Mandyam
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute La Jolla, CA, USA
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Galinato MH, Orio L, Mandyam CD. Methamphetamine differentially affects BDNF and cell death factors in anatomically defined regions of the hippocampus. Neuroscience 2014; 286:97-108. [PMID: 25463524 DOI: 10.1016/j.neuroscience.2014.11.042] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2014] [Revised: 10/25/2014] [Accepted: 11/08/2014] [Indexed: 01/05/2023]
Abstract
Methamphetamine exposure reduces hippocampal long-term potentiation (LTP) and neurogenesis and these alterations partially contribute to hippocampal maladaptive plasticity. The potential mechanisms underlying methamphetamine-induced maladaptive plasticity were identified in the present study. Expression of brain-derived neurotrophic factor (BDNF; a regulator of LTP and neurogenesis), and its receptor tropomyosin-related kinase B (TrkB) were studied in the dorsal and ventral hippocampal tissue lysates in rats that intravenously self-administered methamphetamine in a limited access (1h/day) or extended access (6h/day) paradigm for 17days post baseline sessions. Extended access methamphetamine enhanced expression of BDNF with significant effects observed in the dorsal and ventral hippocampus. Methamphetamine-induced enhancements in BDNF expression were not associated with TrkB receptor activation as indicated by phospho (p)-TrkB-706 levels. Conversely, methamphetamine produced hypophosphorylation of N-methyl-d-aspartate (NMDA) receptor subunit 2B (GluN2B) at Tyr-1472 in the ventral hippocampus, indicating reduced receptor activation. In addition, methamphetamine enhanced expression of anti-apoptotic protein Bcl-2 and reduced pro-apoptotic protein Bax levels in the ventral hippocampus, suggesting a mechanism for reducing cell death. Analysis of Akt, a pro-survival kinase that suppresses apoptotic pathways and pAkt at Ser-473 demonstrated that extended access methamphetamine reduces Akt expression in the ventral hippocampus. These data reveal that alterations in Bcl-2 and Bax levels by methamphetamine were not associated with enhanced Akt expression. Given that hippocampal function and neurogenesis vary in a subregion-specific fashion, where dorsal hippocampus regulates spatial processing and has higher levels of neurogenesis, whereas ventral hippocampus regulates anxiety-related behaviors, these data suggest that methamphetamine self-administration initiates distinct allostatic changes in hippocampal subregions that may contribute to the altered synaptic activity in the hippocampus, which may underlie enhanced negative affective symptoms and perpetuation of the addiction cycle.
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Affiliation(s)
- M H Galinato
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute, La Jolla, CA 92037, USA; Department of Neurosciences, University of California San Diego, La Jolla, CA 92037, USA
| | - L Orio
- Departamento de Psicobiología, Facultad Psicología, Universidad Complutense de Madrid, Campus Somosaguas, 28223 Pozuelo de Alarcón, Madrid, Spain
| | - C D Mandyam
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute, La Jolla, CA 92037, USA; Department of Neurosciences, University of California San Diego, La Jolla, CA 92037, USA.
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Barr JL, Unterwald EM. Activity-regulated gene expression in immature neurons in the dentate gyrus following re-exposure to a cocaine-paired environment. Hippocampus 2014; 25:354-62. [PMID: 25294309 DOI: 10.1002/hipo.22377] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2014] [Revised: 09/30/2014] [Accepted: 10/03/2014] [Indexed: 12/12/2022]
Abstract
Intense craving for drug and relapse are observed in addicts who are exposed to environmental stimuli associated with drug-taking behavior even after long periods of abstinence. The hippocampus is a brain region known to be involved in contextual processing, taking place predominantly in the septal hippocampus, and emotional processing, taking place predominantly in the temporal hippocampus. Conditioned place preference is an animal model of context-conditioned reward. The dentate gyrus is a hippocampal sub-region particularly important for the acquisition of cocaine-induced place preference and is a site of continuous neurogenesis, which has been implicated in the vulnerability to drug-taking behavior. Therefore, these experiments explored the role of newly generated neurons in drug reward-context association by examining the activation, as determined by expression of the immediate early gene cfos, of young and mature granule cells in the septal and temporal dentate gyrus of adult rats that were re-exposed to a drug-paired environment following the development of cocaine place preference. The overall level of cfos expression was increased in both the septal and temporal dentate gyrus of animals that developed place preference and were re-exposed to the drug paired environment compared with re-exposure to a neutral environment. Overall level of neurogenesis, as detected by the S-phase marker 5'-bromo-2'-deoxyuridine (BrdU) and the immature neuron marker doublecortin (DCX), was unaltered by cocaine conditioning. However, the number of activated new neurons (DCX + cfos) was greater in the temporal dentate gyrus of cocaine-conditioned rats re-exposed to the drug-paired environment as compared to those re-exposed to a neutral environment. Further understanding of the role of dentate gyrus neurogenesis on the conditioned effects of drugs of abuse may provide new insights into the role of this process in the expression of addictive behaviors.
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Affiliation(s)
- Jeffrey L Barr
- Department of Pharmacology and Center for Substance Abuse Research, Temple University School of Medicine, Philadelphia, Pennsylvania
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Kim A, Mandyam CD. Methamphetamine affects cell proliferation in the medial prefrontal cortex: a new niche for toxicity. Pharmacol Biochem Behav 2014; 126:90-6. [PMID: 25260424 DOI: 10.1016/j.pbb.2014.09.012] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/01/2014] [Revised: 08/21/2014] [Accepted: 09/16/2014] [Indexed: 12/20/2022]
Abstract
Methamphetamine addicts demonstrate impaired frontal cortical-dependent cognitive function that could result from methamphetamine-induced maladaptive plasticity in the prefrontal cortex. Reduced adult gliogenesis observed in a rodent model of compulsive methamphetamine self-administration could contribute to the maladaptive plasticity in the medial prefrontal cortex (mPFC) as excessive methamphetamine intake is associated with loss of gliogenesis. The present study explored the vulnerability of mPFC progenitors to the duration of various sessions of methamphetamine self-administration in limited and extended access schedule of reinforcement. Proliferation of progenitors via Ki-67 labeling and apoptosis via activated caspase-3 labeling were studied in rats that intravenously self-administered methamphetamine in a limited access (1h/day: short access (ShA)) or extended access (6h/day: long access (LgA)) paradigm over 4, 13, 22 or 42 sessions, and in rats that experienced 22 sessions and were withdrawn from self-administration for a period of 4weeks. Four sessions of LgA methamphetamine enhanced proliferation and apoptosis and forty-two sessions of ShA and LgA methamphetamine reduced proliferation without effecting apoptosis. Withdrawal from twenty-two sessions of methamphetamine enhanced proliferation in LgA animals. Our findings demonstrate that proliferation of mPFC progenitors is vulnerable to psychostimulant exposure and withdrawal with distinct underlying mechanisms relating to methamphetamine toxicity. The susceptibility of mPFC progenitors to even modest doses of methamphetamine could account for the pronounced neuroadaptation in the mPFC linked to methamphetamine abuse.
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Affiliation(s)
- Airee Kim
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute, La Jolla, CA, USA
| | - Chitra D Mandyam
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute, La Jolla, CA, USA.
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Blanco-Calvo E, Rivera P, Arrabal S, Vargas A, Pavón FJ, Serrano A, Castilla-Ortega E, Galeano P, Rubio L, Suárez J, Rodriguez de Fonseca F. Pharmacological blockade of either cannabinoid CB1 or CB2 receptors prevents both cocaine-induced conditioned locomotion and cocaine-induced reduction of cell proliferation in the hippocampus of adult male rat. Front Integr Neurosci 2014; 7:106. [PMID: 24409127 PMCID: PMC3884150 DOI: 10.3389/fnint.2013.00106] [Citation(s) in RCA: 40] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2013] [Accepted: 12/18/2013] [Indexed: 11/14/2022] Open
Abstract
Addiction to major drugs of abuse, such as cocaine, has recently been linked to alterations in adult neurogenesis in the hippocampus. The endogenous cannabinoid system modulates this proliferative response as demonstrated by the finding that pharmacological activation/blockade of cannabinoid CB1 and CB2 receptors not only modulates neurogenesis but also modulates cell death in the brain. In the present study, we evaluated whether the endogenous cannabinoid system affects cocaine-induced alterations in cell proliferation. To this end, we examined whether pharmacological blockade of either CB1 (Rimonabant, 3 mg/kg) or CB2 receptors (AM630, 3 mg/kg) would affect cell proliferation [the cells were labeled with 5-bromo-2′-deoxyuridine (BrdU)] in the subventricular zone (SVZ) of the lateral ventricle and the dentate subgranular zone (SGZ). Additionally, we measured cell apoptosis (as monitored by the expression of cleaved caspase-3) and glial activation [by analyzing the expression of glial fibrillary acidic protein (GFAP) and Iba-1] in the striatum and hippocampus during acute and repeated (4 days) cocaine administration (20 mg/kg). The results showed that acute cocaine exposure decreased the number of BrdU-immunoreactive (ir) cells in the SVZ and SGZ. In contrast, repeated cocaine exposure reduced the number of BrdU-ir cells only in the SVZ. Both acute and repeated cocaine exposure increased the number of cleaved caspase-3-, GFAP- and Iba1-ir cells in the hippocampus, and this effect was counteracted by AM630 or Rimonabant, which increased the number of BrdU-, GFAP-, and Iba1-ir cells in the hippocampus. These results indicate that the changes in neurogenic, apoptotic and gliotic processes that were produced by repeated cocaine administration were normalized by pharmacological blockade of CB1 and CB2. The restorative effects of cannabinoid receptor blockade on hippocampal cell proliferation were associated with the prevention of the induction of conditioned locomotion but not with the prevention of cocaine-induced sensitization.
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Affiliation(s)
- Eduardo Blanco-Calvo
- Departament de Pedagogia i Psicologia, Facultat de Ciències de l'Educació, Universitat de Lleida Lleida, Spain ; Laboratorio de Investigación-UGC de Salud Mental, Instituto de Investigación Biomédica de Málaga, Universidad de Málaga, Hospital Regional Universitario de Málaga Málaga, Spain
| | - Patricia Rivera
- Laboratorio de Investigación-UGC de Salud Mental, Instituto de Investigación Biomédica de Málaga, Universidad de Málaga, Hospital Regional Universitario de Málaga Málaga, Spain
| | - Sergio Arrabal
- Laboratorio de Investigación-UGC de Salud Mental, Instituto de Investigación Biomédica de Málaga, Universidad de Málaga, Hospital Regional Universitario de Málaga Málaga, Spain
| | - Antonio Vargas
- Laboratorio de Investigación-UGC de Salud Mental, Instituto de Investigación Biomédica de Málaga, Universidad de Málaga, Hospital Regional Universitario de Málaga Málaga, Spain
| | - Francisco Javier Pavón
- Laboratorio de Investigación-UGC de Salud Mental, Instituto de Investigación Biomédica de Málaga, Universidad de Málaga, Hospital Regional Universitario de Málaga Málaga, Spain
| | - Antonia Serrano
- Laboratorio de Investigación-UGC de Salud Mental, Instituto de Investigación Biomédica de Málaga, Universidad de Málaga, Hospital Regional Universitario de Málaga Málaga, Spain
| | - Estela Castilla-Ortega
- Laboratorio de Investigación-UGC de Salud Mental, Instituto de Investigación Biomédica de Málaga, Universidad de Málaga, Hospital Regional Universitario de Málaga Málaga, Spain
| | - Pablo Galeano
- Instituto de Investigaciones Cardiológicas Prof. Dr. Alberto C. Taquini, Universidad de Buenos Aires-CONICET Ciudad de Buenos Aires, Argentina
| | - Leticia Rubio
- Departamento de Anatomía y Medicina Legal y Forense, Facultad de Medicina, Universidad de Málaga Málaga, Spain
| | - Juan Suárez
- Laboratorio de Investigación-UGC de Salud Mental, Instituto de Investigación Biomédica de Málaga, Universidad de Málaga, Hospital Regional Universitario de Málaga Málaga, Spain
| | - Fernando Rodriguez de Fonseca
- Laboratorio de Investigación-UGC de Salud Mental, Instituto de Investigación Biomédica de Málaga, Universidad de Málaga, Hospital Regional Universitario de Málaga Málaga, Spain
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Gancarz-Kausch AM, Schroeder GL, Panganiban C, Adank D, Humby MS, Kausch MA, Clark SD, Dietz DM. Transforming growth factor beta receptor 1 is increased following abstinence from cocaine self-administration, but not cocaine sensitization. PLoS One 2013; 8:e83834. [PMID: 24386286 PMCID: PMC3875479 DOI: 10.1371/journal.pone.0083834] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Accepted: 11/15/2013] [Indexed: 12/24/2022] Open
Abstract
The addicted phenotype is characterized as a long-lasting, chronically relapsing disorder that persists following long periods of abstinence, suggesting that the underlying molecular changes are stable and endure for long periods even in the absence of drug. Here, we investigated Transforming Growth Factor-Beta Type I receptor (TGF-β R1) expression in the nucleus accumbens (NAc) following periods of withdrawal from cocaine self-administration (SA) and a sensitizing regimen of non-contingent cocaine. Rats were exposed to either (i) repeated systemic injections (cocaine or saline), or (ii) self-administration (cocaine or saline) and underwent a period of forced abstinence (either 1 or 7 days of drug cessation). Withdrawal from cocaine self-administration resulted in an increase in TGF-β R1 protein expression in the NAc compared to saline controls. This increase was specific for volitional cocaine intake as no change in expression was observed following a sensitizing regimen of experimenter-administered cocaine. These findings implicate TGF-β signaling as a novel potential therapeutic target for treating drug addiction.
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Affiliation(s)
- Amy M. Gancarz-Kausch
- Department of Pharmacology & Toxicology, University at Buffalo, Buffalo, New York, United States of America
- Research Institute on Addictions, University at Buffalo, Buffalo, New York, United States of America
| | - Gabrielle L. Schroeder
- Department of Pharmacology & Toxicology, University at Buffalo, Buffalo, New York, United States of America
| | - Clarisse Panganiban
- Department of Pharmacology & Toxicology, University at Buffalo, Buffalo, New York, United States of America
| | - Danielle Adank
- Department of Pharmacology & Toxicology, University at Buffalo, Buffalo, New York, United States of America
| | - Monica S. Humby
- Department of Pharmacology & Toxicology, University at Buffalo, Buffalo, New York, United States of America
| | - Michael A. Kausch
- Department of Pharmacology & Toxicology, University at Buffalo, Buffalo, New York, United States of America
| | - Stewart D. Clark
- Department of Pharmacology & Toxicology, University at Buffalo, Buffalo, New York, United States of America
- Research Institute on Addictions, University at Buffalo, Buffalo, New York, United States of America
| | - David M. Dietz
- Department of Pharmacology & Toxicology, University at Buffalo, Buffalo, New York, United States of America
- Research Institute on Addictions, University at Buffalo, Buffalo, New York, United States of America
- * E-mail:
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Chambers RA. Adult hippocampal neurogenesis in the pathogenesis of addiction and dual diagnosis disorders. Drug Alcohol Depend 2013; 130:1-12. [PMID: 23279925 PMCID: PMC3640791 DOI: 10.1016/j.drugalcdep.2012.12.005] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2012] [Revised: 11/19/2012] [Accepted: 12/06/2012] [Indexed: 12/11/2022]
Abstract
BACKGROUND As knowledge deepens about how new neurons are born, differentiate, and wire into the adult mammalian brain, growing evidence depicts hippocampal neurogenesis as a special form of neuroplasticity that may be impaired across psychiatric disorders. This review provides an integrated-evidence based framework describing a neurogenic basis for addictions and addiction vulnerability in mental illness. METHODS Basic studies conducted over the last decade examining the effects of addictive drugs on adult neurogenesis and the impact of neurogenic activity on addictive behavior were compiled and integrated with relevant neurocomputational and human studies. RESULTS While suppression of hippocampal neurogenic proliferation appears to be a universal property of addictive drugs, the pathophysiology of addictions involves neuroadaptative processes within frontal-cortical-striatal motivation circuits that the neurogenic hippocampus regulates via direct projections. States of suppressed neurogenic activity may simultaneously underlie psychiatric and cognitive symptoms, but also confer or signify hippocampal dysfunction that heightens addiction vulnerability in mental illness as a basis for dual diagnosis disorders. CONCLUSIONS Research on pharmacological, behavioral and experiential strategies that enhance adaptive regulation of hippocampal neurogenesis holds potential in advancing preventative and integrative treatment strategies for addictions and dual diagnosis disorders.
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Affiliation(s)
- R Andrew Chambers
- Laboratory for Translational Neuroscience of Dual Diagnosis & Development, Department of Psychiatry, Indiana University School of Medicine, 791 Union Drive, Indianapolis, IN 46202, United States.
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Gass JT, Chandler LJ. The Plasticity of Extinction: Contribution of the Prefrontal Cortex in Treating Addiction through Inhibitory Learning. Front Psychiatry 2013; 4:46. [PMID: 23750137 PMCID: PMC3667556 DOI: 10.3389/fpsyt.2013.00046] [Citation(s) in RCA: 75] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2013] [Accepted: 05/16/2013] [Indexed: 01/04/2023] Open
Abstract
Theories of drug addiction that incorporate various concepts from the fields of learning and memory have led to the idea that classical and operant conditioning principles underlie the compulsiveness of addictive behaviors. Relapse often results from exposure to drug-associated cues, and the ability to extinguish these conditioned behaviors through inhibitory learning could serve as a potential therapeutic approach for those who suffer from addiction. This review will examine the evidence that extinction learning alters neuronal plasticity in specific brain regions and pathways. In particular, subregions of the prefrontal cortex (PFC) and their projections to other brain regions have been shown to differentially modulate drug-seeking and extinction behavior. Additionally, there is a growing body of research demonstrating that manipulation of neuronal plasticity can alter extinction learning. Therefore, the ability to alter plasticity within areas of the PFC through pharmacological manipulation could facilitate the acquisition of extinction and provide a novel intervention to aid in the extinction of drug-related memories.
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Affiliation(s)
- J T Gass
- Department of Neurosciences, Medical University of South Carolina , Charleston, SC , USA
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Mandyam CD. The Interplay between the Hippocampus and Amygdala in Regulating Aberrant Hippocampal Neurogenesis during Protracted Abstinence from Alcohol Dependence. Front Psychiatry 2013; 4:61. [PMID: 23818882 PMCID: PMC3694261 DOI: 10.3389/fpsyt.2013.00061] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2013] [Accepted: 06/12/2013] [Indexed: 12/27/2022] Open
Abstract
The development of alcohol dependence involves elevated anxiety, low mood, and increased sensitivity to stress, collectively labeled negative affect. Particularly interesting is the recent accumulating evidence that sensitized extrahypothalamic stress systems [e.g., hyperglutamatergic activity, blunted hypothalamic-pituitary-adrenal (HPA) hormonal levels, altered corticotropin-releasing factor signaling, and altered glucocorticoid receptor signaling in the extended amygdala] are evident in withdrawn dependent rats, supporting the hypothesis that pathological neuroadaptations in the extended amygdala contribute to the negative affective state. Notably, hippocampal neurotoxicity observed as aberrant dentate gyrus (DG) neurogenesis (neurogenesis is a process where neural stem cells in the adult hippocampal subgranular zone generate DG granule cell neurons) and DG neurodegeneration are observed in withdrawn dependent rats. These correlations between withdrawal and aberrant neurogenesis in dependent rats suggest that alterations in the DG could be hypothesized to be due to compromised HPA axis activity and associated hyperglutamatergic activity originating from the basolateral amygdala in withdrawn dependent rats. This review discusses a possible link between the neuroadaptations in the extended amygdala stress systems and the resulting pathological plasticity that could facilitate recruitment of new emotional memory circuits in the hippocampus as a function of aberrant DG neurogenesis.
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Affiliation(s)
- Chitra D Mandyam
- Committee on the Neurobiology of Addictive Disorders, The Scripps Research Institute , La Jolla, CA , USA
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