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Ray S, Sil S, Kannan M, Periyasamy P, Buch S. Role of the gut-brain axis in HIV and drug abuse-mediated neuroinflammation. ADVANCES IN DRUG AND ALCOHOL RESEARCH 2023; 3:11092. [PMID: 38389809 PMCID: PMC10880759 DOI: 10.3389/adar.2023.11092] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 02/23/2023] [Indexed: 02/24/2024]
Abstract
Drug abuse and related disorders are a global public health crisis affecting millions, but to date, limited treatment options are available. Abused drugs include but are not limited to opioids, cocaine, nicotine, methamphetamine, and alcohol. Drug abuse and human immunodeficiency virus-1/acquired immune deficiency syndrome (HIV-1/AIDS) are inextricably linked. Extensive research has been done to understand the effect of prolonged drug use on neuronal signaling networks and gut microbiota. Recently, there has been rising interest in exploring the interactions between the central nervous system and the gut microbiome. This review summarizes the existing research that points toward the potential role of the gut microbiome in the pathogenesis of HIV-1-linked drug abuse and subsequent neuroinflammation and neurodegenerative disorders. Preclinical data about gut dysbiosis as a consequence of drug abuse in the context of HIV-1 has been discussed in detail, along with its implications in various neurodegenerative disorders. Understanding this interplay will help elucidate the etiology and progression of drug abuse-induced neurodegenerative disorders. This will consequently be beneficial in developing possible interventions and therapeutic options for these drug abuse-related disorders.
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Affiliation(s)
- Sudipta Ray
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, United States
| | - Susmita Sil
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, United States
| | - Muthukumar Kannan
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, United States
| | - Palsamy Periyasamy
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, United States
| | - Shilpa Buch
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE, United States
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2
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Zhou X, Lv X, Zhang L, Yan J, Hu R, Sun Y, Xi S, Jiang H. Ketamine promotes the neural differentiation of mouse embryonic stem cells by activating mTOR. Mol Med Rep 2020; 21:2443-2451. [PMID: 32236601 PMCID: PMC7185302 DOI: 10.3892/mmr.2020.11043] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2017] [Accepted: 08/31/2018] [Indexed: 12/23/2022] Open
Abstract
Ketamine is a widely used general anesthetic and has been reported to demonstrate neurotoxicity and neuroprotection. Investigation into the regulatory mechanism of ketamine on influencing neural development is of importance for a better and safer way of relieving pain. Reverse transcription‑quantitative polymerase chain reaction and western blotting were used to detect the critical neural associated gene expression, and flow cytometry to detect the neural differentiation effect. Hence, in the present study the underlying mechanism of ketamine (50 nM) on neural differentiation of the mouse embryonic stem cell (mESC) line 46C was investigated. The results demonstrated that a low dose of ketamine (50 nM) promoted the differentiation of mESCs to neural stem cells (NSCs) and activated mammalian target of rapamycin (mTOR) by upregulating the expression levels of phosphorylated (p)‑mTOR. Furthermore, inhibition of the mTOR signaling pathway by rapamycin or knockdown of mTOR suppressed neural differentiation. A rescue experiment further confirmed that downregulation of mTOR inhibited the promotion of neural differentiation induced by ketamine. Taken together, the present study indicated that a low level of ketamine upregulated p‑mTOR expression levels, promoting neural differentiation.
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Affiliation(s)
- Xuhui Zhou
- Department of Anesthesiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Center for Specialty Strategy Research of Shanghai Jiao Tong University China Hospital Development Institute, Shanghai 200011, P.R. China
| | - Xiang Lv
- Department of Anesthesiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Center for Specialty Strategy Research of Shanghai Jiao Tong University China Hospital Development Institute, Shanghai 200011, P.R. China
| | - Lei Zhang
- Department of Anesthesiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Center for Specialty Strategy Research of Shanghai Jiao Tong University China Hospital Development Institute, Shanghai 200011, P.R. China
| | - Jia Yan
- Department of Anesthesiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Center for Specialty Strategy Research of Shanghai Jiao Tong University China Hospital Development Institute, Shanghai 200011, P.R. China
| | - Rong Hu
- Department of Anesthesiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Center for Specialty Strategy Research of Shanghai Jiao Tong University China Hospital Development Institute, Shanghai 200011, P.R. China
| | - Yu Sun
- Department of Anesthesiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Center for Specialty Strategy Research of Shanghai Jiao Tong University China Hospital Development Institute, Shanghai 200011, P.R. China
| | - Siwei Xi
- Department of Anesthesiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Center for Specialty Strategy Research of Shanghai Jiao Tong University China Hospital Development Institute, Shanghai 200011, P.R. China
| | - Hong Jiang
- Department of Anesthesiology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Center for Specialty Strategy Research of Shanghai Jiao Tong University China Hospital Development Institute, Shanghai 200011, P.R. China
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3
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Sun J, Lin J, Feng X, Lu Z, Liu T, Lin L, Chen Y, Hu Y, Li Y, Xu S, Guo H. Prenatal Exposure to Ketamine Leads to Anxiety-Like Behaviors and Dysfunction in Bed Nucleus of Stria Terminalis. Int J Neuropsychopharmacol 2020; 23:181-191. [PMID: 31990032 PMCID: PMC7171933 DOI: 10.1093/ijnp/pyaa002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 01/02/2020] [Accepted: 01/24/2020] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Both the clinical and preclinical studies have suggested embryonic or infant exposure to ketamine, a general anesthetic, pose a great threat to the developing brain. However, it remains unclear how ketamine may contribute to the brain dysfunctions. METHODS A mouse model of prenatal exposure to ketamine was generated by i.m. injection and continuous i.p. infusion of pregnant mice. Open field test and elevated plus maze test were used to analyze the behavioral alterations induced by ketamine. Immunostaining by c-Fos was used to map the neuron activity. Chemogenetic modulation of the neurons was used to rescue the abnormal neuron activity and behaviors. RESULTS Here we show that mice prenatally exposed to ketamine displayed anxiety-like behaviors during adulthood, but not during puberty. C-Fos immunostaining identified abnormal neuronal activity in Bed Nucleus of the Stria Terminalis, the silencing of which by chemogenetics restores the anxiety-like behaviors. CONCLUSIONS Taken together, these results demonstrate a circuitry mechanism of ketamine-induced anxiety-like behaviors.
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Affiliation(s)
- Jing Sun
- The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China,Department of Anesthesiology, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, China,Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, The Brain Cognition and Brain Disease Institute, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Jianbang Lin
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, The Brain Cognition and Brain Disease Institute, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Xiaolong Feng
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, The Brain Cognition and Brain Disease Institute, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Zhonghua Lu
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, The Brain Cognition and Brain Disease Institute, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Taian Liu
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, The Brain Cognition and Brain Disease Institute, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Li Lin
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, The Brain Cognition and Brain Disease Institute, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Yefei Chen
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, The Brain Cognition and Brain Disease Institute, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Yu Hu
- Guangdong Provincial Key Laboratory of Brain Connectome and Behavior, The Brain Cognition and Brain Disease Institute, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Yuantao Li
- Department of Anesthesiology, Affiliated Shenzhen Maternity & Child Healthcare Hospital, Southern Medical University, Shenzhen, China
| | - Shiyuan Xu
- Department of Anesthesiology, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Hongbo Guo
- The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Guangzhou, China,Correspondence: Hongbo Guo, PhD, The National Key Clinical Specialty, The Engineering Technology Research Center of Education Ministry of China, Guangdong Provincial Key Laboratory on Brain Function Repair and Regeneration, Department of Neurosurgery, Zhujiang Hospital, Southern Medical University, Gongye Avenue NO.253, Guangzhou 510282 ()
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4
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Li X, Guo C, Li Y, Li L, Wang Y, Zhang Y, Li Y, Chen Y, Liu W, Gao L. Ketamine administered pregnant rats impair learning and memory in offspring via the CREB pathway. Oncotarget 2018; 8:32433-32449. [PMID: 28430606 PMCID: PMC5464800 DOI: 10.18632/oncotarget.15405] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2016] [Accepted: 01/27/2017] [Indexed: 12/11/2022] Open
Abstract
Ketamine has been reported to impair the capacity for learning and memory. This study examined whether these capacities were also altered in the offspring and investigated the role of the CREB signaling pathway in pregnant rats, subjected to ketamine-induced anesthesia. On the 14th day of gestation (P14), female rats were anesthetized for 3 h via intravenous ketamine injection (200 mg/Kg). Morris water maze task, contextual and cued fear conditioning, and olfactory tasks were executed between the 25th to 30th day after birth (B25-30) on rat pups, and rats were sacrificed on B30. Nerve density and dendritic spine density were examined via Nissl’s and Golgi staining. Simultaneously, the contents of Ca2+/Calmodulin-Dependent Protein Kinase II (CaMKII), p-CaMKII, CaMKIV, p-CaMKIV, Extracellular Regulated Protein Kinases (ERK), p-ERK, Protein Kinase A (PKA), p-PKA, cAMP-Response Element Binding Protein (CREB), p-CREB, and Brain Derived Neurotrophic Factor (BDNF) were detected in the hippocampus. We pretreated PC12 cells with both PKA inhibitor (H89) and ERK inhibitor (SCH772984), thus detecting levels of ERK, p-ERK, PKA, p-PKA, p-CREB, and BDNF. The results revealed that ketamine impaired the learning ability and spatial as well as conditioned memory in the offspring, and significantly decreased the protein levels of ERK, p-ERK, PKA, p-PKA, p-CREB, and BDNF. We found that ERK and PKA (but not CaMKII or CaMKIV) have the ability to regulate the CREB-BDNF pathway during ketamine-induced anesthesia in pregnant rats. Furthermore, ERK and PKA are mutually compensatory for the regulation of the CREB-BDNF pathway.
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Affiliation(s)
- Xinran Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Cen Guo
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Yanan Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Lina Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Yuxin Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Yiming Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Yue Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Yu Chen
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Wenhan Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
| | - Li Gao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
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5
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Li Y, Li X, Guo C, Li L, Wang Y, Zhang Y, Chen Y, Liu W, Gao L. Long-term neurocognitive dysfunction in offspring via NGF/ ERK/CREB signaling pathway caused by ketamine exposure during the second trimester of pregnancy in rats. Oncotarget 2018; 8:30956-30970. [PMID: 28415680 PMCID: PMC5458180 DOI: 10.18632/oncotarget.16042] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Accepted: 03/01/2017] [Indexed: 02/06/2023] Open
Abstract
Early life exposure to ketamine caused neurohistopathologic changes and persistent cognitive dysfunction. For this study, a pregnant rat model was developed to investigate neurocognitive effects in the offspring, following ketamine exposure during the second trimester. Pregnant rats on gestational day 14 (equal to midtrimester pregnancy in humans), intravenously received 200 mg/kg ketamine for 3 h. Their behavior was tested (Morris water maze, odor recognition test, and fear conditioning) at postnatal days (P25-30). Furthermore, hippocampal morphology of the offspring (P30) was examined via Nissl staining and hippocampal dendritic spine density was determined via Golgi staining. The hippocampal protein levels of nerve growth factor (NGF), extracellular signal-regulated kinase (ERK), phosphorylated-ERK (p-ERK), cyclic adenosine monophosphate response element-binding (CREB), p-CREB, synaptophysin (SYP), synapsin (SYN), and postsynaptic density-95 (PSD95) were measured via western blot. Additionally, SCH772984 (an ERK inhibitor) was used to evaluate both role and underlying mechanism of the ERK pathway in PC12 cells. We found that ketamine caused long-term neurocognitive dysfunction, reduced the density of the dendritic spin, caused neuronal loss, and down-regulated the expression of NGF, ERK, p-ERK, mitogen, and stress-activated protein kinase (MSK), CREB, p-CREB, SYP, SYN, and PSD95 in the hippocampus. These results suggest that ketamine induced maternal anesthesia during period of the fetal brain development can cause long-term neurocognitive dysfunction in the offspring, which likely happens via inhibition of the NGF-ERK-CREB pathway in the hippocampus. Our results highlight the central role of ERK in neurocognition.
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Affiliation(s)
- Yanan Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Xinran Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Cen Guo
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Lina Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Yuxin Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Yiming Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Yu Chen
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Wenhan Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
| | - Li Gao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin 150030, China
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6
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Li X, Li Y, Zhao J, Li L, Wang Y, Zhang Y, Li Y, Chen Y, Liu W, Gao L. Administration of Ketamine Causes Autophagy and Apoptosis in the Rat Fetal Hippocampus and in PC12 Cells. Front Cell Neurosci 2018; 12:21. [PMID: 29456493 PMCID: PMC5801406 DOI: 10.3389/fncel.2018.00021] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Accepted: 01/15/2018] [Indexed: 11/18/2022] Open
Abstract
Drug abuse during pregnancy is a serious problem. Like alcohol, anticonvulsants, sedatives, and anesthetics, such as ketamine, can pass through the placental barrier and affect the growing fetus. However, the mechanism by which ketamine causes damage to fetal rats is not well understood. Therefore, in this study, we anesthetized pregnant rats with ketamine and evaluated the Total Antioxidant Capacity (T-AOC), Reactive Oxygen Species (ROS), and Malondialdehyde (MDA). Moreover, we determined changes in the levels of Cleaved-Caspase-3 (C-Caspase-3), Beclin-1, B-cell lymphoma-2 (Bcl-2), Bcl-2 Associated X Protein (Bax), Autophagy-related gene 4 (Atg4), Atg5, p62 (SQSTM1), and marker of autophagy Light Chain 3 (LC3). In addition, we cultured PC12 cells in vitro to determine the relationship between ROS, autophagy, and apoptosis following ketamine treatment. The results showed that ketamine induced changes in autophagy- and apoptosis-related proteins, reduced T-AOC, and generated excessive levels of ROS and MDA. In vitro experiments showed similar results, indicating that apoptosis levels can be inhibited by 3-MA. We also found that autophagy and apoptosis can be inhibited by N-acetyl-L-cysteine (Nac). Thus, anesthesia with ketamine in pregnant rats may increase the rate of autophagy and apoptosis in the fetal hippocampus and the mechanism may be through inhibition of antioxidant activity and ROS accumulation.
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Affiliation(s)
- Xinran Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Yanan Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Jinghua Zhao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Lina Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Yuxin Wang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Yiming Zhang
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Yue Li
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Yu Chen
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Wenhan Liu
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
| | - Li Gao
- College of Veterinary Medicine, Northeast Agricultural University, Harbin, China
- Key Laboratory of the Provincial Education, Department of Heilongjiang for Common Animal Disease Prevention and Treatment, Northeast Agricultural University, Harbin, China
- Heilongjiang Key Laboratory for Laboratory Animals and Comparative Medicine, Northeast Agricultural University, Harbin, China
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7
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Rofael HZ, Turkall RM, Abdel-Rahman MS. Effect of Ketamine on Cocaine-Induced Immunotoxicity in Rats. Int J Toxicol 2016; 22:343-58. [PMID: 14555406 DOI: 10.1177/109158180302200503] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
The abuse of cocaine (COC) with ketamine (KET) is currently popular among young drug abusers and has been associated with increased risk of human immunodeficiency virus (HIV) infection. The effect of subacute exposure to COC and KET alone and in combination on the immune system was assessed in adult male Sprague-Dawley (SD) rats. To simulate the route and mode of human exposure, rats were treated with COC alone (5 mg/kg, IV), KET alone (100 mg/kg, PO) or KET followed immediately by COC (same doses and routes of administration) once-a-day for 7 consecutive days. Rats were sacrified 30 minutes following the last treatment. Total circulating leukocyte and lymphocyte counts were decreased with relative neutrophilia, whereas immunoglobulin M (Ig M) antibody response to sheep erythrocytes (SRBCs) was increased in animals treated with COC. Moreover, treatment with COC alone increased serum interleukin-10 (IL-10) concentration; however, it did not affect serum interferon gamma (INF-γ) concentration. Spleen histology showed hyperplasia of white pulp whereas thymus gland demonstrated mild cortical degeneration. On the other hand, KET treatment did not produce any significant change of any of these parameters. However, when coadministered with COC, significant reduction of bodyweight, spleen/bodyweight, and thymus/bodyweight ratios with degeneration of splenic white pulp and thymic cortex occurred. Moreover, the primary immunoglobulin response to SRBC and serum IL-10 concentration were decreased without significant change in serum IFN-γ or circulating leukocytic counts. COC caused a significant increase in serum corticosterone concentration that KET effectively prevented. On the other hand, a significant increase in plasma and tissue concentrations of norcocaine (NC) resulted following KET and COC administration in combination. Daily SKF-525A pretreatment at a dose of 30 mg/kg, IP, for 7 days 1 hour prior to KET and COC in combination effectively reversed the effects of this combination on body weight, organ/bodyweight ratios, histopathology, and serum Ig M and IL-10 concentrations without affecting leukocytic counts. On the other hand, SKF-525A pretreatment did not change the immunomodulatory effects of COC compared to non-pretreated animals. The results suggest that COC-induced immunomodulation most likely occurred through neuroendocrinal mechanisms. On the other hand, enhanced oxidative metabolism of COC in the presence of KET-induced immunosuppression.
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Affiliation(s)
- H Z Rofael
- Department of Pharmacology and Physiology, New Jersey Medical School, University of Medicine and Dentistry of New Jersey, Newark, New Jersey 07103-2714, USA
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8
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Félix LM, Serafim C, Valentim AM, Antunes LM, Campos S, Matos M, Coimbra AM. Embryonic Stage-Dependent Teratogenicity of Ketamine in Zebrafish (Danio rerio). Chem Res Toxicol 2016; 29:1298-309. [DOI: 10.1021/acs.chemrestox.6b00122] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Luís M. Félix
- Centre
for the Research and Technology of Agro-Environmental and Biological
Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
- Laboratory
Animal Science (LAS), Institute for Molecular and Cell Biology (IBMC), University of Porto (UP), Porto, Portugal
- Institute
for Research and Innovation in Health (i3S), University of Porto (UP), Porto, Portugal
| | - Cindy Serafim
- Life
Sciences and Environment School (ECVA), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Ana M. Valentim
- Centre
for the Research and Technology of Agro-Environmental and Biological
Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
- Laboratory
Animal Science (LAS), Institute for Molecular and Cell Biology (IBMC), University of Porto (UP), Porto, Portugal
- Institute
for Research and Innovation in Health (i3S), University of Porto (UP), Porto, Portugal
| | - Luís M. Antunes
- Centre
for the Research and Technology of Agro-Environmental and Biological
Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
- Laboratory
Animal Science (LAS), Institute for Molecular and Cell Biology (IBMC), University of Porto (UP), Porto, Portugal
- Institute
for Research and Innovation in Health (i3S), University of Porto (UP), Porto, Portugal
- School
of Agrarian and Veterinary Sciences (ECAV), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Sónia Campos
- Centre
for the Research and Technology of Agro-Environmental and Biological
Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
- Laboratory
Animal Science (LAS), Institute for Molecular and Cell Biology (IBMC), University of Porto (UP), Porto, Portugal
- Institute
for Research and Innovation in Health (i3S), University of Porto (UP), Porto, Portugal
| | - Manuela Matos
- Biosystems & Integrative Sciences Institute (BioISI), Faculty of Sciences, University of Lisboa, Lisboa, Portugal
- Department
of Genetics and Biotechnology (DGB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
| | - Ana M. Coimbra
- Centre
for the Research and Technology of Agro-Environmental and Biological
Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
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9
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Araos P, Pedraz M, Serrano A, Lucena M, Barrios V, García-Marchena N, Campos-Cloute R, Ruiz JJ, Romero P, Suárez J, Baixeras E, de la Torre R, Montesinos J, Guerri C, Rodríguez-Arias M, Miñarro J, Martínez-Riera R, Torrens M, Chowen JA, Argente J, Mason BJ, Pavón FJ, Rodríguez de Fonseca F. Plasma profile of pro-inflammatory cytokines and chemokines in cocaine users under outpatient treatment: influence of cocaine symptom severity and psychiatric co-morbidity. Addict Biol 2015; 20:756-72. [PMID: 24854157 DOI: 10.1111/adb.12156] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The treatment for cocaine use constitutes a clinical challenge because of the lack of appropriate therapies and the high rate of relapse. Recent evidence indicates that the immune system might be involved in the pathogenesis of cocaine addiction and its co-morbid psychiatric disorders. This work examined the plasma pro-inflammatory cytokine and chemokine profile in abstinent cocaine users (n = 82) who sought outpatient cocaine treatment and age/sex/body mass-matched controls (n = 65). Participants were assessed with the diagnostic interview Psychiatric Research Interview for Substance and Mental Diseases according to the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition, Text Revision (DSM-IV-TR). Tumor necrosis factor-alpha, chemokine (C-C motif) ligand 2/monocyte chemotactic protein-1 and chemokine (C-X-C motif) ligand 12 (CXCL12)/stromal cell-derived factor-1 (SDF-1) were decreased in cocaine users, although all cytokines were identified as predictors of a lifetime pathological use of cocaine. Interleukin-1 beta (IL-1β), chemokine (C-X3-C motif) ligand 1 (CX3CL1)/fractalkine and CXCL12/SDF-1 positively correlated with the cocaine symptom severity when using the DSM-IV-TR criteria for cocaine abuse/dependence. These cytokines allowed the categorization of the outpatients into subgroups according to severity, identifying a subgroup of severe cocaine users (9-11 criteria) with increased prevalence of co-morbid psychiatric disorders [mood (54%), anxiety (32%), psychotic (30%) and personality (60%) disorders]. IL-1β was observed to be increased in users with such psychiatric disorders relative to those users with no diagnosis. In addition to these clinical data, studies in mice demonstrated that plasma IL-1β, CX3CL1 and CXCL12 were also affected after acute and chronic cocaine administration, providing a preclinical model for further research. In conclusion, cocaine exposure modifies the circulating levels of pro-inflammatory mediators. Plasma cytokine/chemokine monitoring could improve the stratification of cocaine consumers seeking treatment and thus facilitate the application of appropriate interventions, including management of heightened risk of psychiatric co-morbidity. Further research is necessary to elucidate the role of the immune system in the etiology of cocaine addiction.
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Affiliation(s)
- Pedro Araos
- Unidad Gestión Clínica de Salud Mental; Instituto de Investigación Biomédica de Málaga (IBIMA); Hospital Regional Universitario de Málaga; Málaga Spain
| | - María Pedraz
- Unidad Gestión Clínica de Salud Mental; Instituto de Investigación Biomédica de Málaga (IBIMA); Hospital Regional Universitario de Málaga; Málaga Spain
| | - Antonia Serrano
- Unidad Gestión Clínica de Salud Mental; Instituto de Investigación Biomédica de Málaga (IBIMA); Hospital Regional Universitario de Málaga; Málaga Spain
| | - Miguel Lucena
- Unidad Gestión Clínica de Salud Mental; Instituto de Investigación Biomédica de Málaga (IBIMA); Hospital Regional Universitario de Málaga; Málaga Spain
| | - Vicente Barrios
- Department of Endocrinology; Hospital Infantil Universitario Niño Jesús; Madrid Spain
| | - Nuria García-Marchena
- Unidad Gestión Clínica de Salud Mental; Instituto de Investigación Biomédica de Málaga (IBIMA); Hospital Regional Universitario de Málaga; Málaga Spain
| | | | | | - Pablo Romero
- Unidad Gestión Clínica de Salud Mental; Instituto de Investigación Biomédica de Málaga (IBIMA); Hospital Regional Universitario de Málaga; Málaga Spain
| | - Juan Suárez
- Unidad Gestión Clínica de Salud Mental; Instituto de Investigación Biomédica de Málaga (IBIMA); Hospital Regional Universitario de Málaga; Málaga Spain
| | - Elena Baixeras
- Unidad Gestión Clínica de Salud Mental; Instituto de Investigación Biomédica de Málaga (IBIMA); Hospital Regional Universitario de Málaga; Málaga Spain
| | - Rafael de la Torre
- Neurosciences Program; Institut Hospital del Mar d'Investigacions Mèdiques (IMIM); Barcelona Spain
- Facultat de Ciencies de la Salut i de la Vida; Universitat Pompeu Fabra (CEXS-UPF); Barcelona Spain
| | - Jorge Montesinos
- Department of Cellular Pathology; Príncipe Felipe Research Centre; Valencia Spain
| | - Consuelo Guerri
- Department of Cellular Pathology; Príncipe Felipe Research Centre; Valencia Spain
| | - Marta Rodríguez-Arias
- Unidad de Investigación Psicobiología de las Drogodependencias; Facultad de Psicología; Universitat de Valencia; Valencia Spain
| | - José Miñarro
- Unidad de Investigación Psicobiología de las Drogodependencias; Facultad de Psicología; Universitat de Valencia; Valencia Spain
| | - Roser Martínez-Riera
- Neurosciences Program; Institut Hospital del Mar d'Investigacions Mèdiques (IMIM); Barcelona Spain
- Institut de Neuropsiquiatria i Addiccions (INAD) del Parc de Salut MAR; Barcelona Spain
- Department of Psychiatry; Universitat Autònoma de Barcelona (UAB); Barcelona Spain
| | - Marta Torrens
- Neurosciences Program; Institut Hospital del Mar d'Investigacions Mèdiques (IMIM); Barcelona Spain
- Institut de Neuropsiquiatria i Addiccions (INAD) del Parc de Salut MAR; Barcelona Spain
- Department of Psychiatry; Universitat Autònoma de Barcelona (UAB); Barcelona Spain
| | - Julie A. Chowen
- Department of Endocrinology; Hospital Infantil Universitario Niño Jesús; Madrid Spain
| | - Jesús Argente
- Department of Endocrinology; Hospital Infantil Universitario Niño Jesús; Madrid Spain
| | - Barbara J. Mason
- Committee on the Neurobiology of Addictive Disorders; The Scripps Research Institute (TSRI); La Jolla CA USA
| | - Francisco J. Pavón
- Unidad Gestión Clínica de Salud Mental; Instituto de Investigación Biomédica de Málaga (IBIMA); Hospital Regional Universitario de Málaga; Málaga Spain
| | - Fernando Rodríguez de Fonseca
- Unidad Gestión Clínica de Salud Mental; Instituto de Investigación Biomédica de Málaga (IBIMA); Hospital Regional Universitario de Málaga; Málaga Spain
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Meng C, Liu Z, Liu GL, Fu LS, Zhang M, Zhang Z, Xia HM, Zhang SH, Xu YN. Ketamine promotes inflammation through increasing TLR4 expression in RAW264.7 cells. ACTA ACUST UNITED AC 2015; 35:419-425. [DOI: 10.1007/s11596-015-1447-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2014] [Revised: 03/19/2015] [Indexed: 10/23/2022]
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11
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Zhao T, Li Y, Wei W, Savage S, Zhou L, Ma D. Ketamine administered to pregnant rats in the second trimester causes long-lasting behavioral disorders in offspring. Neurobiol Dis 2014; 68:145-55. [DOI: 10.1016/j.nbd.2014.02.009] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2013] [Revised: 02/21/2014] [Accepted: 02/25/2014] [Indexed: 12/29/2022] Open
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12
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De Kock M, Loix S, Lavand'homme P. Ketamine and peripheral inflammation. CNS Neurosci Ther 2013; 19:403-10. [PMID: 23574634 DOI: 10.1111/cns.12104] [Citation(s) in RCA: 127] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/29/2012] [Revised: 03/01/2013] [Accepted: 03/01/2013] [Indexed: 12/11/2022] Open
Abstract
The old anesthetic ketamine has demonstrated interactions with the inflammatory response. This review intends to qualify the nature and the mechanism underlying this interaction. For this purpose, preclinical data will be presented starting with the initial works, and then, the probable mechanisms will be discussed. A summary of the most relevant clinical data will be presented. In conclusion, ketamine appears as a unique "homeostatic regulator" of the acute inflammatory reaction and the stress-induced immune disturbances. This is of some interest at a moment when the short- and long-term deleterious consequences of inadequate inflammatory reactions are increasingly reported. Large-scale studies showing improved patient's outcome are, however, required before to definitively assert the clinical reality of this positive effect.
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Affiliation(s)
- Marc De Kock
- Department of Anesthesia, Perioperative Medicine, Institute of Neurosciences, Catholic University of Louvain, Brussels, Belgium.
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13
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Mantri CK, Pandhare Dash J, Mantri JV, Dash CCV. Cocaine enhances HIV-1 replication in CD4+ T cells by down-regulating MiR-125b. PLoS One 2012; 7:e51387. [PMID: 23251514 PMCID: PMC3520918 DOI: 10.1371/journal.pone.0051387] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2012] [Accepted: 11/02/2012] [Indexed: 11/22/2022] Open
Abstract
The main objective of this study was to examine effects of cocaine on HIV-1 replication in primary CD4+ T cells. Cocaine a commonly used drug among HIV-1 positive individuals serves as a cofactor for HIV-1 infection and progression to acquired immunodeficiency syndrome (AIDS). Accumulating evidence suggest that cocaine increases HIV-1 replication in cell cultures, peripheral blood mononuclear cells (PBMCs) and animal models. Intriguingly, there are no studies on cocaine-induced alterations in HIV-1 replication in primary CD4+ T cells that serve as the main targets for HIV-1 replication in vivo. In this report, we demonstrate cocaine-induced enhancement of HIV-1 replication in primary CD4+ T cells isolated from human PBMCs. To decipher a potential mechanism, we examined whether cocaine targets the innate antiviral immunity of CD4+ T cells mediated by cellular microRNAs (miRNAs). This is because recently a network of anti-HIV miRNAs in CD4+ T cells is highlighted to suppress viral replication. Our genome wide miRNA expression analysis indicated downregulation of several anti-HIV miRNAs (miR-28, miR-125b, miR-150, miR-223, and miR-382) in cocaine treated CD4+ T cells. However, our real-time quantitative PCR analysis revealed significant downregulation of miR-125b only. Our results illustrated that miR-125b knockdown enhances HIV-1 replication, whereas overexpression of miR-125b decreases HIV-1 replication in these cells. Therefore, we believe miR-125b is a key player for the cocaine induced enhancement of HIV-1 replication in CD4+ T cells. Since, miR-125b targets the 3′ UTR regions of HIV-1 transcripts and inhibits viral protein translation, our data suggest modulation of post entry steps of HIV-1 by cocaine. Given that a plethora of studies suggest that cocaine regulates HIV entry, our results implicate a potentially novel mechanism by which cocaine can increase viral replication in CD4+ T cells.
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Affiliation(s)
- Chinmay K. Mantri
- The Laboratory of Retrovirology and Epigenetics, Center For AIDS Health Disparities Research, Vanderbilt-Meharry Center for AIDS Research, Department of Biochemistry and Cancer Biology, Meharry Medical College, Nashville, Tennessee, United States of America
| | - Jui Pandhare Dash
- The Laboratory of Retrovirology and Epigenetics, Center For AIDS Health Disparities Research, Vanderbilt-Meharry Center for AIDS Research, Department of Biochemistry and Cancer Biology, Meharry Medical College, Nashville, Tennessee, United States of America
| | - Jyoti Velamarti Mantri
- The Laboratory of Retrovirology and Epigenetics, Center For AIDS Health Disparities Research, Vanderbilt-Meharry Center for AIDS Research, Department of Biochemistry and Cancer Biology, Meharry Medical College, Nashville, Tennessee, United States of America
| | - Chandravanu C. V. Dash
- The Laboratory of Retrovirology and Epigenetics, Center For AIDS Health Disparities Research, Vanderbilt-Meharry Center for AIDS Research, Department of Biochemistry and Cancer Biology, Meharry Medical College, Nashville, Tennessee, United States of America
- * E-mail:
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14
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Kinoshita M, Matsuoka Y, Suzuki T, Mirrielees J, Yang J. Sigma-1 receptor alters the kinetics of Kv1.3 voltage gated potassium channels but not the sensitivity to receptor ligands. Brain Res 2012; 1452:1-9. [PMID: 22433979 PMCID: PMC3670091 DOI: 10.1016/j.brainres.2012.02.070] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2011] [Revised: 02/10/2012] [Accepted: 02/28/2012] [Indexed: 12/24/2022]
Abstract
Sigma1 receptors (Sigma1R) are intracellular chaperone proteins that bind psychotropic drugs and also clinically used drugs such as ketamine and haloperidol. Co-expression of the Sigma1R has been reported to enhance the sensitivity of several voltage-gated ion channels to Sigma1R ligands. Kv1.3 is the predominant voltage-gated potassium channel expressed in T lymphocytes with a documented role in immune activation. To gain a better understanding of Sigma1R modulation of Kv ion channels, we investigated the effects of Sigma1R co-expression on Kv1.3 physiology and pharmacology in ion channels expressed in Xenopus oocytes. We also explored the protein domains of Kv1.3 necessary for protein:protein interaction between Kv1.3 and Sigma1R through co-immunoprecipitation studies. Slowly inactivating outward-going currents consistent with Kv1.3 expression were elicited on step depolarizations. The current characterized by E(rev), V(1/2), and slope factor remained unchanged when co-expressed with Sigma1R. Analysis of inactivation time constant revealed a faster Kv1.3 current decay when co-expressed with Sigma1R. However the sensitivity to Sigma1R ligands remained unaltered when co-expressed with the Sigma1R in contrast to the previously reported modulation of ligand sensitivity in closely related Kv1.4 and Kv1.5 voltage gated potassium channels. Co-immunoprecipitation assays of various Kv1.3 truncation constructs indicated that the transmembrane domain of the Kv1.3 protein was responsible for the protein:protein interaction with the Sigma1R. Sigma1R likely interacts with different domains of Kv ion channel family proteins resulting in distinct modulation of different channels.
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Affiliation(s)
- Maho Kinoshita
- Department of Anesthesiology, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53706, USA
| | - Yoshikazu Matsuoka
- Department of Anesthesiology, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53706, USA
| | - Takeshi Suzuki
- Department of Anesthesiology, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53706, USA
| | - Jennifer Mirrielees
- Molecular & Cellular Pharmacology Graduate Program, University of Wisconsin School of Medicine and Public Health, Madison, WI 53706, USA
| | - Jay Yang
- Department of Anesthesiology, University of Wisconsin School of Medicine and Public Health, Madison, WI, 53706, USA
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Cearley CN, Blindheim K, Sorg BA, Krueger JM, Churchill L. Acute cocaine increases interleukin-1β mRNA and immunoreactive cells in the cortex and nucleus accumbens. Neurochem Res 2011; 36:686-92. [PMID: 21399909 DOI: 10.1007/s11064-011-0410-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/11/2011] [Indexed: 10/18/2022]
Abstract
The cytokine, interleukin-1β (IL1β) is a sleep regulatory substance whose expression is enhanced in response to neuronal stimulation. In this study, IL1β mRNA and immunoreactivity (IR) are evaluated after acute cocaine. First, IL1β mRNA levels were measured at the start or end of the light period after saline or acute exposure to a low dose of cocaine (5 mg/kg, intraperitoneal (ip)). IL1β mRNA levels after an acute exposure to cocaine (5 mg/kg, ip) at dark onset were significantly higher than those obtained from rats sacrificed after an acute exposure to saline in the piriform and somatosensory cortex, and nucleus accumbens. Acute exposure of cocaine at 5 mg/kg at dark onset also increased the number of IL1β-immunoreactive astrocytes in layer I-V of the prefrontal cortex, somatosensory cortex and nucleus accumbens. These data suggest that IL1β mRNA and protein levels in some of the dopaminergically innervated brain regions are responsive to cocaine.
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16
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Signal-transducing mechanisms of ketamine-caused inhibition of interleukin-1β gene expression in lipopolysaccharide-stimulated murine macrophage-like Raw 264.7 cells. Toxicol Appl Pharmacol 2009; 240:15-25. [DOI: 10.1016/j.taap.2009.06.013] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2009] [Revised: 06/07/2009] [Accepted: 06/15/2009] [Indexed: 01/08/2023]
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17
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Dietert RR. Developmental immunotoxicology (DIT): windows of vulnerability, immune dysfunction and safety assessment. J Immunotoxicol 2009; 5:401-12. [PMID: 19404874 DOI: 10.1080/15476910802483324] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023] Open
Abstract
Developmental immunotoxicity (DIT) is an increasing health concern since DIT outcomes predispose children to those diseases that have been on the rise in recent decades (e.g., childhood asthma, allergic diseases, autoimmune conditions, childhood infections). The enhanced vulnerability of the developing immune system for environmental insult is based on unique immune maturational events that occur during critical windows of vulnerability in early life. The semi-allogeneic pregnancy state, with suppression of graft rejection and associated skewing of the fetal and neonatal immune system, also influences the specific nature of DIT outcomes. In the exposed offspring, targeted immunosuppression can co-exist with an increased risk of allergic and/or autoimmune disease. Because with DIT immune dysfunction rather than profound immunosuppression is the greater concern, testing approaches should emphasize multi-functional assessment. Beyond T-cells, dendritic cells and macrophages are sensitive targets. The last-trimester fetus and the neonate are normally depressed in T(H)1-dependent functions and postnatal acquisition of needed T(H)1 capacity is a major concern with DIT. With this in mind, assessment should include a measure of T(H)1-dependent cell-mediated immunity [cytotoxic T-lymphocyte (CTL) activity or delayed-type hypersensitivity (DTH) response] in conjunction with a multi-isotype T-dependent antibody response (TDAR) and evaluation of innate immunity (e.g., NK activity). Other parameters such as immune histology, immunophenotyping, cytokine responses, and organ weights can be useful when included with immune functional evaluation. A multifunctional DIT protocol using influenza challenge is presented as one example of an approach that permits dysfunction and misregulation to be evaluated.
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Affiliation(s)
- Rodney R Dietert
- Department of Microbiology and Immunology, College of Veterinary Medicine, Cornell University, Ithaca, NY 14853, USA.
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Dalley D, Davé D, Lesellier S, Palmer S, Crawshaw T, Hewinson R, Chambers M. Development and evaluation of a gamma-interferon assay for tuberculosis in badgers (Meles meles). Tuberculosis (Edinb) 2008; 88:235-43. [DOI: 10.1016/j.tube.2007.11.001] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2007] [Revised: 10/18/2007] [Accepted: 11/04/2007] [Indexed: 11/28/2022]
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Smith KS, Morrell JI. Behavioral responses during the initial exposures to a low dose of cocaine in late preweanling and adult rats. Neurotoxicol Teratol 2008; 30:202-12. [PMID: 18276106 DOI: 10.1016/j.ntt.2008.01.003] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2007] [Revised: 01/03/2008] [Accepted: 01/12/2008] [Indexed: 10/22/2022]
Abstract
Human drug experimentation begins during late childhood and early adolescence, a critical time in physical and CNS development, when the immature CNS is vulnerable to the long-term effects of psychoactive drugs. Few preclinical animal studies have investigated responses to such drugs in a developmental stage equivalent to late childhood of humans. We used a rodent model to examine behavioral responses of female Sprague-Dawley late preweanling and adult rats during acute and repeated exposures to a low dose of cocaine. Results show that after cocaine injection, preweanling rats (18-21 days old) have locomotor responses that differ from adults, but after postnatal day 22, the responses are indistinguishable from adults even though rats are still not weaned. Before day 22, locomotor effects of cocaine differ from those in adults in three ways: preweanlings are active for a longer time after cocaine injection at day 18; preweanling activity peaks more rapidly after subcutaneous administration; and after only three injections of cocaine, a tolerance-like pattern is seen in preweanlings whereas an emerging pattern of sensitization to cocaine is seen in adults. The behavioral patterns of this age group offer a preclinical model of the early effects of drugs of abuse.
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Affiliation(s)
- Kiersten S Smith
- Center for Molecular and Behavioral Neuroscience, Rutgers University, USA.
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Crawford FC, Wood ML, Wilson SE, Mathura VS, Hollen TR, Geall F, Kolippakkam DN, Mullan MJ. Cocaine induced inflammatory response in human neuronal progenitor cells. J Neurochem 2006; 97:662-74. [PMID: 16539665 DOI: 10.1111/j.1471-4159.2006.03760.x] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
We have employed a genomic approach in homogenous cell culture to investigate the fundamental transcriptional responses which occur in neurons over time as a consequence of a single 30-min exposure to cocaine. Data from 24 Affymetrix microarrays, representing eight treatment groups, were analyzed by GeneChip Operating Software and then further mined by hierarchical clustering, anova, and Ingenuity Pathway Analysis software to examine known molecular pathways impacted by the observed transcriptional changes. For each time point under investigation, the data sets of genes exhibiting altered expression in treated cells compared with control were interrogated with a specific focus on differential expression of genes involved in immunomodulation and inflammation. The existing literature on the effects of cocaine in a diverse array of experimental paradigms demonstrates a significant modulation of inflammation and immune mechanisms, but these have typically been studies of chronic exposure in immune-competent cells. Our data show a time-dependent up-regulation of genes associated with pro-inflammatory and immune responses, peaking at 24 h as confirmed by all methods of analysis, suggesting a specific neuronal immunomodulatory response to acute cocaine exposure.
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Ferguson SA, Cisneros FJ, Gough BJ, Ali SF. Four weeks of oral isotretinoin treatment causes few signs of general toxicity in male and female Sprague–Dawley rats. Food Chem Toxicol 2005; 43:1289-96. [PMID: 15950819 DOI: 10.1016/j.fct.2005.02.016] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2004] [Revised: 02/14/2005] [Accepted: 02/23/2005] [Indexed: 11/17/2022]
Abstract
Despite widespread use of isotretinoin for its anti-acne effects and its current evaluation in clinical trials as a cancer treatment, little is known about its general toxicity in adult nonpregnant animals, particularly after oral administration which mimics the human route. Here, adult male and female Sprague-Dawley rats were gavaged daily with 0 (soy oil), 7.5, or 15 mg/kg isotretinoin for 28 days during which time body weight, food/water intake, and estrous phase were measured. At sacrifice, organ weights were collected and concentrations of dopamine (DA), serotonin and metabolites were measured in frontal cortex, striatum, hippocampus, and diencephalon. Food intake was mildly decreased in both treated groups (approximately 15% in males and 7% in females); however, body weight and water consumption were unaffected. The estrous cycle appeared slightly affected (i.e., lengthened by 15 mg/kg, and both treated groups appeared to have less time in diestrus and more time in estrus). Kidney/body weight ratio was decreased by 7.5 and 15 mg/kg isotretinoin and spleen/body weight ratio was increased in the 7.5 mg/kg group. Males of the 7.5 mg/kg group exhibited significantly higher gonad/body weight ratios than did same-sex controls. Concentrations of monoamine and metabolites in the frontal cortex and diencephalon were unaffected. Nor were striatal DA and DOPAC concentrations affected; however, there were isolated effects on striatal HVA and 5-HIAA. Hippocampal DA concentrations were marginally increased. These data indicate mild effects resulting from oral isotretinoin treatment at doses which likely produce serum levels within the range of humans.
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Affiliation(s)
- Sherry A Ferguson
- Division of Neurotoxicology, HFT-132, National Center for Toxicological Research/FDA, 3900, NCTR Road, Jefferson, AR 72079, USA.
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Yamada K, Nabeshima T. Pro- and anti-addictive neurotrophic factors and cytokines in psychostimulant addiction: mini review. Ann N Y Acad Sci 2005; 1025:198-204. [PMID: 15542718 DOI: 10.1196/annals.1316.025] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Drug addiction is defined as a chronically relapsing disorder that is characterized by compulsive drug taking, inability to limit the intake, and intense drug craving. While the positive reinforcing effects of psychostimulants such as cocaine and amphetamines depend on the mesocorticolimbic dopamine system innervating nucleus accumbens, chronic drug exposure causes stable changes in the structure and function of the brain that may underlie the long-lived behavioral abnormalities in drug addiction. Recent evidence has suggested that various neurotrophic factors and cytokines are involved in the effects of psychomotor stimulants, suggesting that these factors play a role in drug addiction. In this article, a role of neurotrophic factors and cytokines in psychostimulant addiction is discussed.
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Affiliation(s)
- Kiyofumi Yamada
- Laboratory of Neuropsychopharmacology, Faculty of Pharmaceutical Sciences, Kanazawa University, Japan
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