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Tu W, Zhang T, Li C, Jia W, Yao Z, Yi S, Chen H, Liu Y, Zhou D, Wang C, Zhang R, Shi Z, Yuan T, Zhao B, Wei L. The α 1 adrenoceptor antagonist prazosin potentiates morphine induced conditioned place preference in rats. Brain Res 2023; 1821:148614. [PMID: 37783262 DOI: 10.1016/j.brainres.2023.148614] [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: 06/10/2023] [Revised: 08/31/2023] [Accepted: 09/29/2023] [Indexed: 10/04/2023]
Abstract
The norepinephrine (NE) system is involved in pathways that regulate morphine addiction. Here, we investigated the role of α1 adrenoceptor in the ventrolateral orbital cortex (VLO) of rats with repeated morphine treatment and underlying molecular mechanisms. The rewarding properties of morphine were assessed by the conditioned place preference (CPP) paradigm. Prazosin, an α1 adrenoceptor antagonist, was microinjected into the VLO. The expression of α1 adrenoceptor, p-CaMKII/CaMKII, CRTC1, BDNF and PSD95 in the VLO were determined by immunohistochemistry or western blotting. Neurotransmitter NE in the VLO and inflammatory factors in serum were detected separately through high-performance liquid chromatography and enzyme-linked immunosorbent assay. Our experimental results showed that repeated morphine administration induced stable CPP and prazosin promoted the morphine-induced CPP. Microinjection of prazosin in the VLO not only blocked the activity of α1 adrenoceptor, decreased CaMKII phosphorylation and CRTC1, which eventually resulted in a regression of synaptic plasticity-related proteins, but also was accompanied by significantly decreasing of NE in the VLO and increasing of inflammatory cytokines in peripheral blood. These findings suggested that prazosin potentiates the addictive effects of morphine. The effect of increased CPP through reducing α1 adrenoceptor and NE was associated with the CaMKII-CRTC1 pathway and synaptic plasticity-related proteins in the VLO and inflammatory cytokines in the peripheral blood. The NE system may therefore be an underlying therapeutic target in morphine addiction. Additionally, we believe that the clinical use of prazosin in hypertensive patients with morphine abuse may be a potential risk because of its reinforcing effect on addiction.
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Affiliation(s)
- Wanyu Tu
- Xinxiang Key Laboratory of Forensic Toxicology, School of Forensic Medicine, Xinxiang Medical University, Xinxiang 453003, Henan, China
| | - Tengteng Zhang
- Xinxiang Key Laboratory of Forensic Toxicology, School of Forensic Medicine, Xinxiang Medical University, Xinxiang 453003, Henan, China
| | - Chenchen Li
- Xinxiang Key Laboratory of Forensic Toxicology, School of Forensic Medicine, Xinxiang Medical University, Xinxiang 453003, Henan, China
| | - Wenge Jia
- Xinxiang Key Laboratory of Forensic Toxicology, School of Forensic Medicine, Xinxiang Medical University, Xinxiang 453003, Henan, China
| | - Zhijun Yao
- School of Basic Medical Sciences, Xinxiang Medical University, Xinxiang 453003, Henan, China
| | - Shanyong Yi
- Xinxiang Key Laboratory of Forensic Toxicology, School of Forensic Medicine, Xinxiang Medical University, Xinxiang 453003, Henan, China
| | - Hongyun Chen
- Xinxiang Key Laboratory of Forensic Toxicology, School of Forensic Medicine, Xinxiang Medical University, Xinxiang 453003, Henan, China
| | - Yuan Liu
- Xinxiang Key Laboratory of Forensic Toxicology, School of Forensic Medicine, Xinxiang Medical University, Xinxiang 453003, Henan, China
| | - Danya Zhou
- Xinxiang Key Laboratory of Forensic Toxicology, School of Forensic Medicine, Xinxiang Medical University, Xinxiang 453003, Henan, China
| | - Chuansheng Wang
- Henan Key Laboratory of Biological Psychiatry, the Second affiliated hospital of Xinxiang Medical University, Xinxiang 453003, Henan, China
| | - Ruiling Zhang
- Henan Key Laboratory of Biological Psychiatry, the Second affiliated hospital of Xinxiang Medical University, Xinxiang 453003, Henan, China
| | - Zhe Shi
- National Clinical Research Center for Mental Disorders, and Department of Psychaitry, the Second Xiangya Hospital of Central South University, Changsha 410011, Hunan, China
| | - Tifei Yuan
- Shanghai Key Laboratory of Psychotic Disorders, Shanghai Mental Health Center, Shanghai Jiao Tong University School of Medicine, Shanghai 200030, China
| | - Bin Zhao
- Xinxiang Key Laboratory of Forensic Toxicology, School of Forensic Medicine, Xinxiang Medical University, Xinxiang 453003, Henan, China; Henan Key Laboratory of Biological Psychiatry, the Second affiliated hospital of Xinxiang Medical University, Xinxiang 453003, Henan, China.
| | - Lai Wei
- Xinxiang Key Laboratory of Forensic Toxicology, School of Forensic Medicine, Xinxiang Medical University, Xinxiang 453003, Henan, China; Henan Key Laboratory of Biological Psychiatry, the Second affiliated hospital of Xinxiang Medical University, Xinxiang 453003, Henan, China.
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Wang Y, Liu L, Gu JH, Wang CN, Guan W, Liu Y, Tang WQ, Ji CH, Chen YM, Huang J, Li WY, Shi TS, Chen WJ, Zhu BL, Jiang B. Salt-inducible kinase 1-CREB-regulated transcription coactivator 1 signalling in the paraventricular nucleus of the hypothalamus plays a role in depression by regulating the hypothalamic-pituitary-adrenal axis. Mol Psychiatry 2022:10.1038/s41380-022-01881-4. [PMID: 36434056 DOI: 10.1038/s41380-022-01881-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 10/30/2022] [Accepted: 11/09/2022] [Indexed: 11/27/2022]
Abstract
Elucidating the molecular mechanism underlying the hyperactivity of the hypothalamic-pituitary-adrenal axis during chronic stress is critical for understanding depression and treating depression. The secretion of corticotropin-releasing hormone (CRH) from neurons in the paraventricular nucleus (PVN) of the hypothalamus is controlled by salt-inducible kinases (SIKs) and CREB-regulated transcription co-activators (CRTCs). We hypothesised that the SIK-CRTC system in the PVN might contribute to the pathogenesis of depression. Thus, the present study employed chronic social defeat stress (CSDS) and chronic unpredictable mild stress (CUMS) models of depression, various behavioural tests, virus-mediated gene transfer, enzyme-linked immunosorbent assay, western blotting, co-immunoprecipitation, quantitative real-time reverse transcription polymerase chain reaction, and immunofluorescence to investigate this connection. Our results revealed that both CSDS and CUMS induced significant changes in SIK1-CRTC1 signalling in PVN neurons. Both genetic knockdown of SIK1 and genetic overexpression of CRTC1 in the PVN simulated chronic stress, producing a depression-like phenotype in naive mice, and the CRTC1-CREB-CRH pathway mediates the pro-depressant actions induced by SIK1 knockdown in the PVN. In contrast, both genetic overexpression of SIK1 and genetic knockdown of CRTC1 in the PVN protected against CSDS and CUMS, leading to antidepressant-like effects in mice. Moreover, stereotactic infusion of TAT-SIK1 into the PVN also produced beneficial effects against chronic stress. Furthermore, the SIK1-CRTC1 system in the PVN played a role in the antidepressant actions of fluoxetine, paroxetine, venlafaxine, and duloxetine. Collectively, SIK1 and CRTC1 in PVN neurons are closely involved in depression neurobiology, and they could be viable targets for novel antidepressants.
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Affiliation(s)
- Yuan Wang
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, 226001, Jiangsu, China
- Provincial Key Laboratory of Inflammation and Molecular Drug Target, Nantong, Jiangsu, China
| | - Ling Liu
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, 226001, Jiangsu, China
- Provincial Key Laboratory of Inflammation and Molecular Drug Target, Nantong, Jiangsu, China
| | - Jiang-Hong Gu
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, 226001, Jiangsu, China
- Provincial Key Laboratory of Inflammation and Molecular Drug Target, Nantong, Jiangsu, China
| | - Cheng-Niu Wang
- Basic Medical Research Centre, Medical College, Nantong University, Nantong, 226001, Jiangsu, China
| | - Wei Guan
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, 226001, Jiangsu, China
- Provincial Key Laboratory of Inflammation and Molecular Drug Target, Nantong, Jiangsu, China
| | - Yue Liu
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, 226001, Jiangsu, China
- Provincial Key Laboratory of Inflammation and Molecular Drug Target, Nantong, Jiangsu, China
| | - Wen-Qian Tang
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, 226001, Jiangsu, China
- Provincial Key Laboratory of Inflammation and Molecular Drug Target, Nantong, Jiangsu, China
| | - Chun-Hui Ji
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, 226001, Jiangsu, China
- Provincial Key Laboratory of Inflammation and Molecular Drug Target, Nantong, Jiangsu, China
| | - Yan-Mei Chen
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, 226001, Jiangsu, China
- Provincial Key Laboratory of Inflammation and Molecular Drug Target, Nantong, Jiangsu, China
| | - Jie Huang
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, 226001, Jiangsu, China
- Provincial Key Laboratory of Inflammation and Molecular Drug Target, Nantong, Jiangsu, China
| | - Wei-Yu Li
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, 226001, Jiangsu, China
- Provincial Key Laboratory of Inflammation and Molecular Drug Target, Nantong, Jiangsu, China
| | - Tian-Shun Shi
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, 226001, Jiangsu, China
- Provincial Key Laboratory of Inflammation and Molecular Drug Target, Nantong, Jiangsu, China
| | - Wei-Jia Chen
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, 226001, Jiangsu, China
| | - Bao-Lun Zhu
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, 226001, Jiangsu, China
| | - Bo Jiang
- Department of Pharmacology, School of Pharmacy, Nantong University, Nantong, 226001, Jiangsu, China.
- Provincial Key Laboratory of Inflammation and Molecular Drug Target, Nantong, Jiangsu, China.
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Munier JJ, Marty VN, Spigelman I. Sex differences in α-adrenergic receptor function contribute to impaired hypothalamic metaplasticity following chronic intermittent ethanol exposure. Alcohol Clin Exp Res 2022; 46:1384-1396. [PMID: 35791038 PMCID: PMC9612407 DOI: 10.1111/acer.14900] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Revised: 06/03/2022] [Accepted: 06/23/2022] [Indexed: 01/31/2023]
Abstract
BACKGROUND Individuals with alcohol use disorder (AUD) exhibit maladaptive responses of the hypothalamic-pituitary-adrenal (HPA) axis to stress, which has been linked to high rates of relapse to drinking among abstinent individuals. Corticotropin-releasing factor (CRF) parvocellular neuroendocrine cells (PNCs) within the paraventricular nucleus of the hypothalamus (PVN) are critical to stress-induced HPA axis activation. Here, we investigate sex differences in synaptic transmission and plasticity in PNCs following the application of the stress-associated neurotransmitter norepinephrine (NE) in a rat model of AUD. METHODS Adult Sprague-Dawley rats were exposed to 40 days of chronic intermittent ethanol (CIE) vapor and 30 to 108 days of protracted withdrawal. We measured changes in holding current, evoked synaptic currents, and short-term glutamatergic plasticity (STP) in putative PNCs following the application of NE (10 μM) with and without the selective α1 adrenergic receptor (AR) antagonist prazosin (10 μM) or the α2AR antagonist atipamezole (10 μM). The experiments were performed using whole-cell patch clamp recordings in slices from CIE rats and air-exposed controls. RESULTS NE application caused two distinct effects: a depolarizing, inward, postsynaptic current and a reduction in amplitude of an evoked glutamatergic excitatory postsynaptic current (eEPSC). Both effects were sex- and CIE-specific. Prazosin blocked the postsynaptic inward current, while atipamezole blocked the NE-mediated suppression of eEPSCs. Additionally, STP formation was facilitated following NE application only in stress-naïve males and this response was lost in stressed animals exposed to a 30-min restraint stress following CIE exposure. Furthermore, NE + prazosin restored STP formation in stressed CIE males. CONCLUSIONS NE exerts excitatory and inhibitory effects on CRF PVN PNCs, and both effects are influenced by sex and CIE. Behavioral and hormonal responses to stress are influenced by STP formation within the PVN, which is lost following CIE and restored with the preapplication of prazosin. The selective blockade of α1AR may, therefore, ameliorate CIE-induced deficits in HPA responses to stress in a sex-specific manner.
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Affiliation(s)
- Joseph J. Munier
- Department of Molecular, Cellular, and Integrative Physiology, University of California, Los Angeles, CA, USA,Laboratory of Neuropharmacology, Section of Biosystems and Function, School of Dentistry, University of California, Los Angeles, CA, USA
| | - Vincent N. Marty
- Laboratory of Neuropharmacology, Section of Biosystems and Function, School of Dentistry, University of California, Los Angeles, CA, USA
| | - Igor Spigelman
- Laboratory of Neuropharmacology, Section of Biosystems and Function, School of Dentistry, University of California, Los Angeles, CA, USA
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Pintér-Kübler B, Ferenczi S, Núnez C, Zelei E, Polyák Á, Milanés MV, Kovács KJ. Differential Changes in Expression of Stress- and Metabolic-Related Neuropeptides in the Rat Hypothalamus during Morphine Dependence and Withdrawal. PLoS One 2013; 8:e67027. [PMID: 23805290 PMCID: PMC3689674 DOI: 10.1371/journal.pone.0067027] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2013] [Accepted: 05/13/2013] [Indexed: 12/27/2022] Open
Abstract
Chronic morphine treatment and naloxone precipitated morphine withdrawal activates stress-related brain circuit and results in significant changes in food intake, body weight gain and energy metabolism. The present study aimed to reveal hypothalamic mechanisms underlying these effects. Adult male rats were made dependent on morphine by subcutaneous implantation of constant release drug pellets. Pair feeding revealed significantly smaller weight loss of morphine treated rats compared to placebo implanted animals whose food consumption was limited to that eaten by morphine implanted pairs. These results suggest reduced energy expenditure of morphine-treated animals. Chronic morphine exposure or pair feeding did not significantly affect hypothalamic expression of selected stress- and metabolic related neuropeptides - corticotropin-releasing hormone (CRH), urocortin 2 (UCN2) and proopiomelanocortin (POMC) compared to placebo implanted and pair fed animals. Naloxone precipitated morphine withdrawal resulted in a dramatic weight loss starting as early as 15–30 min after naloxone injection and increased adrenocorticotrophic hormone, prolactin and corticosterone plasma levels in morphine dependent rats. Using real-time quantitative PCR to monitor the time course of relative expression of neuropeptide mRNAs in the hypothalamus we found elevated CRH and UCN2 mRNA and dramatically reduced POMC expression. Neuropeptide Y (NPY) and arginine vasopressin (AVP) mRNA levels were transiently increased during opiate withdrawal. These data highlight that morphine withdrawal differentially affects expression of stress- and metabolic-related neuropeptides in the rat hypothalamus, while relative mRNA levels of these neuropeptides remain unchanged either in rats chronically treated with morphine or in their pair-fed controls.
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Affiliation(s)
- Bernadett Pintér-Kübler
- Laboratory of Molecular Neuroendocrinology, Institute of Experimental Medicine, Budapest, Hungary
| | - Szilamér Ferenczi
- Laboratory of Molecular Neuroendocrinology, Institute of Experimental Medicine, Budapest, Hungary
| | - Cristina Núnez
- Group of Cellular and Molecular Pharmacology, Faculty of Medicine, University of Murcia, Murcia, Spain
| | - Edina Zelei
- Laboratory of Molecular Neuroendocrinology, Institute of Experimental Medicine, Budapest, Hungary
| | - Ágnes Polyák
- Laboratory of Molecular Neuroendocrinology, Institute of Experimental Medicine, Budapest, Hungary
| | - M. Victoria Milanés
- Group of Cellular and Molecular Pharmacology, Faculty of Medicine, University of Murcia, Murcia, Spain
| | - Krisztina J. Kovács
- Laboratory of Molecular Neuroendocrinology, Institute of Experimental Medicine, Budapest, Hungary
- * E-mail:
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