1
|
Mazaheri S, Zendehdel M, Haghparast A. Restraint stress potentiates sensitivity to the antinociceptive effect of morphine through orexin receptors in the ventral tegmental area. Neuropeptides 2023; 101:102353. [PMID: 37385145 DOI: 10.1016/j.npep.2023.102353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Revised: 06/12/2023] [Accepted: 06/14/2023] [Indexed: 07/01/2023]
Abstract
Orexin signaling in the ventral tegmental area (VTA) plays a critical role in stress and addictive behaviors. On the other hand, exposure to stress potentiates behavioral sensitization to drugs of abuse such as morphine. This study aimed to elucidate the role of orexin receptors within the VTA in restraint stress (RS)-induced morphine sensitization. Adult male albino Wistar rats underwent stereotaxic surgery, and two stainless steel guide cannulae were bilaterally implanted into the VTA. Different doses of SB334867 or TCS OX2 29 as orexin-1 (OX1) and orexin-2 (OX2) receptor antagonists were microinjected into the VTA five min before exposure to RS, respectively. A duration of three hours was considered for applying the RS, and 10 min after RS exposure, animals received a subcutaneous injection of an ineffective dose of morphine (1 mg/kg) for three consecutive days followed by a five-day drug/stress-free period. On the ninth day, the tail-flick test evaluated the sensitivity to the antinociceptive effects of morphine. The results demonstrated that the sole application of RS or morphine (1 mg/kg) could not induce morphine sensitization; however, concurrent application of RS and morphine could induce morphine sensitization. Besides, intra-VTA administration of OX1 R or OX2 R antagonists before paired administration of morphine and RS blocked morphine sensitization. The role of OX1 R and OX2 R in the induction of stress-induced morphine sensitization was almost identical. This study provides new insight into the role of orexin signaling in the VTA in the potentiation of morphine sensitization induced by RS and morphine co-administration.
Collapse
Affiliation(s)
- Sajad Mazaheri
- Neuroscience Research Center, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Morteza Zendehdel
- Department of Physiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Abbas Haghparast
- Neuroscience Research Center, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran; School of Cognitive Sciences, Institute for Research in Fundamental Sciences, Tehran, Iran; Department of Basic Sciences, Iranian Academy of Medical Sciences, Tehran, Iran.
| |
Collapse
|
2
|
Mazaheri S, Zendehdel M, Haghparast A. Role of orexinergic receptors within the ventral tegmental area in the development of morphine sensitization induced by forced swim stress in the rat. Prog Neuropsychopharmacol Biol Psychiatry 2022; 116:110539. [PMID: 35217126 DOI: 10.1016/j.pnpbp.2022.110539] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 02/17/2022] [Accepted: 02/18/2022] [Indexed: 02/05/2023]
Abstract
The ventral tegmental area (VTA) has been suggested as part of a common system for reward, stress, and morphine sensitization. Repeated exposure to stress enhances sensitivity to drugs such as morphine. The role of orexin receptor type 1 (OX1R) and type 2 (OX2R) within the VTA in cross-sensitization of morphine with stress was assessed in this study. Various doses of OX1R antagonist (SB334867) and OX2R antagonist (TCS OX2 29) were microinjected into the VTA of 134 adult male albino Wistar rats through cannulae, which had been bilaterally implanted above this region. Five min after microinjection, animals were forced to swim for 6 min, and 10 min after forced swim stress (FSS) termination, a low dose of morphine (i.e., ineffective dose for sensitization) was subcutaneously injected (1 mg/kg; sc). This procedure was repeated for three consecutive days as a sensitization period followed by a 5-day drug/stress-free period. On the 9th day, sensitivity to morphine was examined by measuring antinociceptive responses to the ineffective dose of morphine via tail-flick test. The obtained findings revealed that while concurrent administration of FSS and an ineffective dose of morphine (1 mg/kg; sc) for three consecutive days induced sensitivity to morphine, intra-VTA administration of OX1R- and OX2R antagonists, dose-dependently blocked this sensitization. These results suggested that both orexin receptors located in the VTA have a considerable role in morphine sensitization induced by concurrent administration of FSS and a low dose of morphine. So, there is a contribution of the orexin system partly to stress-induced sensitization to morphine.
Collapse
Affiliation(s)
- Sajad Mazaheri
- Department of Physiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Morteza Zendehdel
- Department of Physiology, Faculty of Veterinary Medicine, University of Tehran, Tehran, Iran
| | - Abbas Haghparast
- Neuroscience Research Center, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
3
|
Charmchi E, Faramarzi G, Rashvand M, Zendehdel M, Haghparast A. Restraint Stress Potentiated Morphine Sensitization: Involvement of Dopamine Receptors within the Nucleus Accumbens. Neurochem Res 2021; 46:648-659. [PMID: 33389471 DOI: 10.1007/s11064-020-03199-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Revised: 12/06/2020] [Accepted: 12/08/2020] [Indexed: 11/25/2022]
Abstract
Sensitization to psychostimulant drugs, as well as morphine, subjected to cross-sensitization with stress. The development of morphine sensitization is associated with enhancements in dopamine overflow in the Nucleus accumbens (NAc). This study aimed to examine the role of accumbal D1/D2-like dopamine receptors in restraint stress (RS) induced sensitization to morphine antinociceptive effects. Adult male Wistar rats weighing 220-250 g underwent stereotaxic surgery. Two stainless steel guide cannulae were bilaterally implanted, 1 mm above the NAc injection site. Different solutions of SCH-23390, as a D1-like receptor antagonist or sulpiride, as a D2-like receptor antagonist, were microinjected into the NAc five min before exposure to RS. Restraint stress lasted for 3 h, 10 min after RS termination; animals received a subcutaneous injection of morphine (1 mg/kg) for 3 consecutive days. The procedure was followed by a 5-day drug and/or stress-free period. After that, on the 9th day, the nociceptive response was evaluated by the tail-flick test. The results revealed that intra-NAc administration of D1/D2-like dopamine receptor antagonists, SCH-23390 or sulpiride, respectively, blocked morphine sensitization-induced by RS and morphine co-administration in rats for three consecutive days. This work provides new insight into the determinant role of accumbal dopamine receptors in morphine sensitization produced by RS-morphine co-administration.
Collapse
Affiliation(s)
- Elham Charmchi
- Faculty of Veterinary Medicine, Department of Physiology, University of Tehran, Tehran, Iran
| | - Golnaz Faramarzi
- Faculty of Veterinary Medicine, Department of Physiology, University of Tehran, Tehran, Iran
| | - Mina Rashvand
- Neuroscience Research Center, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Morteza Zendehdel
- Faculty of Veterinary Medicine, Department of Physiology, University of Tehran, Tehran, Iran
| | - Abbas Haghparast
- Neuroscience Research Center, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
| |
Collapse
|
4
|
Madison CA, Wellman PJ, Eitan S. Pre-exposure of adolescent mice to morphine results in stronger sensitization and reinstatement of conditioned place preference than pre-exposure to hydrocodone. J Psychopharmacol 2020; 34:771-777. [PMID: 32489137 DOI: 10.1177/0269881120926675] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Opioids are commonly prescribed to treat moderate-to-severe pain. However, their use can trigger the development of opioid use disorder. A major problem in treating opioid use disorder remains the high rate of relapse. AIM The purpose of this study was to determine whether there are differences among opioids in their ability to trigger relapse after pre-exposure during adolescence. METHODS On postnatal day 33, mice were examined for the acute locomotor response to saline, morphine, or hydrocodone (5 mg/kg). They were administered with the corresponding opioid or saline during postnatal days 34-38 (20 mg/kg) and 40-44 (40 mg/kg). On postnatal day 45, they were recorded for the development of locomotor sensitization (5 mg/kg). Starting on postnatal day 55, mice were examined for the acquisition (1, 5, 10, 20, and 40 mg/kg), extinction, and drug-induced reinstatement (1, 2.5, and 5 mg/kg) of conditioned place preference. RESULTS There were no significant differences in the acute locomotor response to morphine and hydrocodone. Morphine induced significantly stronger locomotor sensitization as compared to hydrocodone. Pre-exposure to morphine, but not hydrocodone, sensitized the acquisition of conditioned place preference. There were no significant differences in extinction rates. Mice pre-exposed to morphine reinstate conditioned place preference after priming with a 1 mg/kg dose. In contrast, higher priming doses were required for reinstatement in all other experimental groups. CONCLUSIONS Adolescent mice administered with morphine develop greater sensitization to its effects and subsequently reinstate conditioned place preference more readily than mice administered with hydrocodone. This suggests higher risk for relapse after pre-exposure to morphine during adolescence as compared to hydrocodone.
Collapse
Affiliation(s)
- Caitlin A Madison
- Department of Psychological and Brain Sciences, Texas A&M University, College Station, USA
| | - Paul J Wellman
- Department of Psychological and Brain Sciences, Texas A&M University, College Station, USA
| | - Shoshana Eitan
- Department of Psychological and Brain Sciences, Texas A&M University, College Station, USA
| |
Collapse
|
5
|
Involvement of orexinergic receptors in the nucleus accumbens, in the effect of forced swim stress on the reinstatement of morphine seeking behaviors. Behav Brain Res 2019; 356:279-287. [DOI: 10.1016/j.bbr.2018.08.021] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2017] [Revised: 08/03/2018] [Accepted: 08/23/2018] [Indexed: 12/28/2022]
|
6
|
Involvement of opioid system in behavioral despair induced by social isolation stress in mice. Biomed Pharmacother 2018; 109:938-944. [PMID: 30551548 DOI: 10.1016/j.biopha.2018.10.144] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 10/07/2018] [Accepted: 10/24/2018] [Indexed: 02/02/2023] Open
Abstract
Social isolation stress (SIS) as a type of chronic stress could induce depressive- and anxiety-like behaviors. Our study evaluates the role of opioid system on negative behavioral impacts of SIS in male NMRI mice. We investigated effects of morphine, a nonselective opioid receptor (OR) agonist, naltrexone (NLX), an OR antagonist, naltrindole (NLT), a delta opioid receptor (DOR) antagonist, SNC80, a DOR agonist, U-69593, a kappa opioid receptor (KOR) agonist, nor-Binaltorphimine, a selective KOR antagonist and cyprodime hydrochloride a selective mu opioid receptor (MOR) antagonist on depressive- and anxiety-like behaviors. Using RT-PCR we evaluated ORs gene expression in mice brain. Our findings showed that SIS induced anxiety- and depressive-like behavior in the forced swimming test, open field test, splash test and hole-board test. Moreover, administration of SNC-80 significantly mitigated anxiety- and depressive-like behaviors. NLT decreased grooming-activity in the splash test. Excitingly, administration of agents affecting KOR failed to alter the negative effects of SIS. RT-PCR demonstrated that MOR and KOR gene expression decreased in socially isolated mice; however, SIS did not affect DORs expression. Our findings suggest that SIS at least in part, probably via altering endogenous opioids particularly MORs and KORs but not DORs mediated negative impacts on behavior; also, it could be concluded that DORs might be considered as a novel target for studying depression and anxiety.
Collapse
|
7
|
Katebi N, Farahimanesh S, Fatahi Z, Zarrabian S, Haghparast A. Involvement of D1- and D2-like dopamine receptors in the dentate gyrus in the acquisition, expression, and extinction of the morphine-induced conditioned place preference in rats. Behav Brain Res 2018; 353:185-193. [DOI: 10.1016/j.bbr.2018.07.018] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 07/22/2018] [Accepted: 07/23/2018] [Indexed: 01/23/2023]
|
8
|
Comparison of the Role of D1- and D2-Like Receptors in the CA1 Region of the Hippocampus in the Reinstatement Induced by a Subthreshold Dose of Morphine and Forced Swim Stress in Extinguished Morphine-CPP in Rats. Neurochem Res 2018; 43:2092-2101. [DOI: 10.1007/s11064-018-2631-7] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2018] [Revised: 09/02/2018] [Accepted: 09/05/2018] [Indexed: 12/19/2022]
|
9
|
Bates MLS, Hofford RS, Emery MA, Wellman PJ, Eitan S. The role of the vasopressin system and dopamine D1 receptors in the effects of social housing condition on morphine reward. Drug Alcohol Depend 2018; 188:113-118. [PMID: 29772497 DOI: 10.1016/j.drugalcdep.2018.03.021] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Revised: 02/07/2018] [Accepted: 03/05/2018] [Indexed: 01/17/2023]
Abstract
BACKGROUND The association with opioid-abusing individuals or even the perception of opioid abuse by peers are risk factors for the initiation and escalation of abuse. Similarly, we demonstrated that morphine-treated animals housed with only morphine-treated animals (referred to as morphine only) acquire morphine conditioned place-preference (CPP) more readily than morphine-treated animals housed with drug-naïve animals (referred to as morphine cage-mates). However, the molecular mechanisms underlying these effects are still elusive. METHODS Mice received repeated morphine or saline while housed as saline only, morphine only, or cage-mates. Then, they were examined for the expression levels of D1 dopamine receptor (D1DR), D2 dopamine receptor (D2DR), dopamine transporter (DAT), oxytocin, and Arginine-vasopressin (AVP) in the striatum using qPCR. Additionally, we examined the effects of the AVP-V1b receptor antagonist, SSR149415, on the acquisition of morphine conditioned place-preference (CPP). RESULTS Increased striatal expression of D1DR and AVP was observed in morphine only animals, but not morphine cage-mates. No significant effects were observed on the striatal expression of D2DR, DAT, or oxytocin. Antagonizing the AVP-V1b receptors decreased the acquisition of morphine CPP in the morphine only mice, but did not alter the acquisition of morphine CPP in the morphine cage-mate mice. CONCLUSIONS Housing with drug-naïve animals protects against the increase in striatal expression of D1DR and AVP elicited by morphine exposure. Moreover, our studies suggest that the protective effect of housing with drug-naïve animals on the acquisition of morphine reward might be, at least partially, mediated by AVP.
Collapse
Affiliation(s)
- M L Shawn Bates
- Department of Psychological and Brain Sciences, Behavioral and Cellular Neuroscience, Interdisciplinary Program in Neuroscience, Texas A&M Institute for Neuroscience (TAMIN), Texas A&M University, 4235 TAMU, College Station, TX 77843, USA
| | - Rebeca S Hofford
- Department of Psychological and Brain Sciences, Behavioral and Cellular Neuroscience, Interdisciplinary Program in Neuroscience, Texas A&M Institute for Neuroscience (TAMIN), Texas A&M University, 4235 TAMU, College Station, TX 77843, USA
| | - Michael A Emery
- Department of Psychological and Brain Sciences, Behavioral and Cellular Neuroscience, Interdisciplinary Program in Neuroscience, Texas A&M Institute for Neuroscience (TAMIN), Texas A&M University, 4235 TAMU, College Station, TX 77843, USA
| | - Paul J Wellman
- Department of Psychological and Brain Sciences, Behavioral and Cellular Neuroscience, Interdisciplinary Program in Neuroscience, Texas A&M Institute for Neuroscience (TAMIN), Texas A&M University, 4235 TAMU, College Station, TX 77843, USA
| | - Shoshana Eitan
- Department of Psychological and Brain Sciences, Behavioral and Cellular Neuroscience, Interdisciplinary Program in Neuroscience, Texas A&M Institute for Neuroscience (TAMIN), Texas A&M University, 4235 TAMU, College Station, TX 77843, USA.
| |
Collapse
|
10
|
Ferdousi M, Finn DP. Stress-induced modulation of pain: Role of the endogenous opioid system. PROGRESS IN BRAIN RESEARCH 2018; 239:121-177. [DOI: 10.1016/bs.pbr.2018.07.002] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
|
11
|
Ghrelin receptor antagonism of morphine-induced conditioned place preference and behavioral and accumbens dopaminergic sensitization in rats. Neurochem Int 2017; 110:101-113. [DOI: 10.1016/j.neuint.2017.09.013] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2016] [Revised: 08/17/2017] [Accepted: 09/24/2017] [Indexed: 01/06/2023]
|