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Duffy EP, Ward JO, Hale LH, Brown KT, Kwilasz AJ, Saba LM, Ehringer MA, Bachtell RK. Genetic background and sex influence somatosensory sensitivity and oxycodone analgesia in the Hybrid Rat Diversity Panel. Genes Brain Behav 2024; 23:e12894. [PMID: 38597363 PMCID: PMC11005106 DOI: 10.1111/gbb.12894] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/26/2023] [Revised: 01/25/2024] [Accepted: 03/06/2024] [Indexed: 04/11/2024]
Abstract
Opioid use disorder (OUD) is an ongoing public health concern in the United States, and relatively little work has addressed how genetic background contributes to OUD. Understanding the genetic contributions to oxycodone-induced analgesia could provide insight into the early stages of OUD development. Here, we present findings from a behavioral phenotyping protocol using several inbred strains from the Hybrid Rat Diversity Panel. Our behavioral protocol included a modified "up-down" von Frey procedure to measure inherent strain differences in the sensitivity to a mechanical stimulus on the hindpaw. We also performed the tail immersion assay, which measures the latency to display tail withdrawal in response to a hot water bath. Initial withdrawal thresholds were taken in drug-naïve animals to record baseline thermal sensitivity across the strains. Oxycodone-induced analgesia was measured after administration of oxycodone over the course of 2 h. Both mechanical and thermal sensitivity are shaped by genetic factors and display moderate heritability (h2 = 0.23-0.40). All strains displayed oxycodone-induced analgesia that peaked at 15-30 min and returned to baseline by 2 h. There were significant differences between the strains in the magnitude and duration of their analgesic response to oxycodone, although the heritability estimates were quite modest (h2 = 0.10-0.15). These data demonstrate that genetic background confers differences in mechanical sensitivity, thermal sensitivity, and oxycodone-induced analgesia.
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Affiliation(s)
- Eamonn P. Duffy
- Department of Integrative PhysiologyUniversity of Colorado BoulderBoulderColoradoUSA
- Institute for Behavioral GeneticsUniversity of Colorado BoulderBoulderColoradoUSA
| | - J. O. Ward
- Department of Psychology and NeuroscienceUniversity of Colorado BoulderBoulderColoradoUSA
| | - L. H. Hale
- Department of Psychology and NeuroscienceUniversity of Colorado BoulderBoulderColoradoUSA
| | - K. T. Brown
- Department of Psychology and NeuroscienceUniversity of Colorado BoulderBoulderColoradoUSA
| | - Andrew J. Kwilasz
- Department of Psychology and NeuroscienceUniversity of Colorado BoulderBoulderColoradoUSA
| | - Laura M. Saba
- Department of Pharmaceutical SciencesSkaggs School of Pharmacy and Pharmaceutical Sciences, University of Colorado Anschutz Medical CampusAuroraColoradoUSA
| | - Marissa A. Ehringer
- Department of Integrative PhysiologyUniversity of Colorado BoulderBoulderColoradoUSA
- Institute for Behavioral GeneticsUniversity of Colorado BoulderBoulderColoradoUSA
| | - Ryan K. Bachtell
- Institute for Behavioral GeneticsUniversity of Colorado BoulderBoulderColoradoUSA
- Department of Psychology and NeuroscienceUniversity of Colorado BoulderBoulderColoradoUSA
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Inan S, Meissler JJ, Bessho S, Wiah S, Tukel C, Eisenstein TK, Rawls SM. Blocking IL-17A prevents oxycodone-induced depression-like effects and elevation of IL-6 levels in the ventral tegmental area and reduces oxycodone-derived physical dependence in rats. Brain Behav Immun 2024; 117:100-111. [PMID: 38199516 DOI: 10.1016/j.bbi.2024.01.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 12/01/2023] [Accepted: 01/03/2024] [Indexed: 01/12/2024] Open
Abstract
Oxycodone is the most prescribed opioid for pain management and has been available in clinics for almost a century, but effects of chronic oxycodone have been studied less than morphine in preclinical and clinical studies. Newly developed depression has been coupled with chronic oxycodone use in a few clinical studies, but no preclinical studies have investigated the pathogenesis of oxycodone-induced depression. Gut microbiome changes following oxycodone use is an understudied area, and interleukin-17A (IL-17A) is linked to both the development of mood disorders and regulation of gut microbiome. The present study investigated effects of chronic oxycodone exposure on mood-related behaviors (depression and anxiety), pain hypersensitivity, physical dependence, immune markers, and the gut microbiome and tested the hypothesis that blocking IL-17A with a systemically administered monoclonal antibody reduces oxycodone-derived effects. Oxycodone (using an incremental dosing regimen) or saline was injected twice a day for 12 days. IL-17A Ab (200 µg/100 µl) or saline was administered every 3rd day during the 12-day interval. Chronic oxycodone induced a depression-like effect, but not anxiogenic- or anxiolytic-like effects; promoted hyperalgesia; increased IL-17A and IL-6 levels in the ventral tegmental area (VTA); and induced physical dependence. IL-17A Ab co-administration with oxycodone prevented the depression-like effect and hyperalgesia, reduced naloxone-precipitated withdrawal signs, and normalized the increase in cytokine levels. Chronic oxycodone exposure did not affect gut microbiome and integrity. Our results identify a role for IL-17A in oxycodone-related behavioral and neuroimmune effects and show that IL-17A Ab has potential therapeutic value in blocking these effects. Given that humanized IL-17A Ab is approved for treatment of psoriasis and psoriatic arthritis, our findings point toward studying it for use in the treatment of oxycodone use disorder.
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Affiliation(s)
- Saadet Inan
- Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA.
| | - Joseph J Meissler
- Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Shingo Bessho
- Center for Microbiology and Immunology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Sonita Wiah
- Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Cagla Tukel
- Center for Microbiology and Immunology, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA; Department of Microbiology, Immunology, and Inflammation, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Toby K Eisenstein
- Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA; Department of Neural Sciences, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA; Department of Microbiology, Immunology, and Inflammation, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
| | - Scott M Rawls
- Center for Substance Abuse Research, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA; Department of Neural Sciences, Lewis Katz School of Medicine at Temple University, Philadelphia, PA, USA
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Zhang Y, Randesi M, Blendy JA, Kreek MJ, Butelman ER. Impact of OPRM1 (Mu-opioid Receptor Gene) A112G Polymorphism on Dual Oxycodone and Cocaine Self-administration Behavior in a Mouse Model. Neuroscience 2024; 539:76-85. [PMID: 38211933 DOI: 10.1016/j.neuroscience.2024.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Revised: 12/28/2023] [Accepted: 01/05/2024] [Indexed: 01/13/2024]
Abstract
The use of mu-opioid receptor (MOP-r) agonists such as oxycodone together with cocaine is prevalent, and deaths attributed to using these combinations have increased. RATIONALE It is unknown if functional single nucleotide polymorphisms (SNPs), such as the OPRM1 (MOP-r gene) SNP A118G, can predispose individuals to more dual opioid and psychostimulant intake. The dual self-administration (SA) of MOP-r agonists and cocaine has not been thoroughly examined, especially with regard to neurobiological changes. OBJECTIVES We examined oxycodone SA and subsequent dual oxycodone and cocaine SA in male and female A112G (A/G and G/G, heterozygote and homozygote, respectively) mice, models of human A118G carriers, versus wild-type (A/A) mice. METHODS Adult male and female A/G, G/G and A/A mice self-administered oxycodone (0.25 mg/kg/infusion, 4hr/session, FR 1.) for 10 consecutive days (sessions 1-10). Mice then self-administered cocaine (2 hr) following oxycodone SA (4 hr, as above) in each session for a further 10 consecutive days (sessions 11-20). Message RNA transcripts of 24 reward-related genes were examined in the dorsal striatum. RESULTS Male and female A/G and G/G mice had greater oxycodone SA than A/A mice did in the initial 10 days and in the last 10 sessions. Further, A/G and G/G mice showed greater cocaine intake than A/A mice. Dorsal striatal mRNA levels of Pdyn, Fkbp5, Oprk1, and Oprm1 were altered following oxycodone and cocaine SA. CONCLUSIONS These studies demonstrated that this functional genetic variation in Oprm1 affected dual opioid and cocaine SA and altered specific gene expression in the striatum.
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Affiliation(s)
- Yong Zhang
- Laboratory of the Biology of Addictive Diseases, the Rockefeller University, New York, NY 10065, United States.
| | - Matthew Randesi
- Laboratory of the Biology of Addictive Diseases, the Rockefeller University, New York, NY 10065, United States
| | - Julie A Blendy
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Mary Jeanne Kreek
- Laboratory of the Biology of Addictive Diseases, the Rockefeller University, New York, NY 10065, United States
| | - Eduardo R Butelman
- Laboratory of the Biology of Addictive Diseases, the Rockefeller University, New York, NY 10065, United States; Neuropsychoimaging of Addictions and Related Conditions Research Program, Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY 10029, United States
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Zamarripa CA, Huskinson SL, Townsend EA, Prisinzano TE, Blough BE, Rowlett JK, Freeman KB. Contingent administration of typical and biased kappa opioid agonists reduces cocaine and oxycodone choice in a drug vs. food choice procedure in male rhesus monkeys. Psychopharmacology (Berl) 2024; 241:305-314. [PMID: 37870564 DOI: 10.1007/s00213-023-06486-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2023] [Accepted: 10/10/2023] [Indexed: 10/24/2023]
Abstract
RATIONALE Combinations of mu and kappa-opioid receptor (KOR) agonists have been proposed as analgesic formulations with reduced abuse potential. The feasibility of this approach has been increased by the development of KOR agonists with biased signaling profiles that produce KOR-typical antinociception with fewer KOR-typical side effects. OBJECTIVE The present study determined if the biased KOR agonists, nalfurafine and triazole 1.1, could reduce choice for oxycodone in rhesus monkeys as effectively as the typical KOR agonist, salvinorin A. METHODS Adult male rhesus monkeys (N = 5) responded under a concurrent schedule of food delivery and intravenous cocaine injections (0.018 mg/kg/injection). Once trained, cocaine (0.018 mg/kg/injection) or oxycodone (0.0056 mg/kg/injection) was tested alone or in combination with contingent injections of salvinorin A (0.1-3.2 µg/kg/injection), nalfurafine (0.0032-0.1 µg/kg/injection), triazole 1.1 (3.2-100.0 µg/kg/injection), or vehicle. In each condition, the cocaine or oxycodone dose, as well as the food amount, was held constant across choice components, while the dose of the KOR agonist was increased across choice components. RESULTS Cocaine and oxycodone were chosen over food on more than 80% of trials when administered alone or contingently with vehicle. When KOR agonists were administered contingently with either cocaine or oxycodone, drug choice decreased in a dose-dependent manner. Salvinorin A and triazole 1.1 decreased drug-reinforcer choice without altering total trials completed (i.e., choice allocation shifted to food), while nalfurafine dose dependently decreased total trials completed. CONCLUSIONS These results demonstrate that salvinorin A and triazole 1.1, but not nalfurafine, selectively reduce cocaine and oxycodone self-administration independent of nonspecific effects on behavior, suggesting that G-protein bias does not appear to be a moderating factor in this outcome. Triazole 1.1 represents an important prototypical compound for developing novel KOR agonists as deterrents for prescription opioid abuse.
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Affiliation(s)
- C Austin Zamarripa
- Program in Neuroscience, University of Mississippi Medical Center, Jackson, MS, 39216, USA
| | - Sally L Huskinson
- Program in Neuroscience, University of Mississippi Medical Center, Jackson, MS, 39216, USA
- Division of Neurobiology and Behavior Research, Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, 2500 N. State Street, Jackson, MS, 39216, USA
- Center for Innovation and Discovery in Addictions, University of Mississippi Medical Center, Jackson, MS, 39216, USA
| | - E Andrew Townsend
- Division of Therapeutics and Medical Consequences, National Institute on Drug Abuse, North Bethesda, MD, 20852, USA
| | - Thomas E Prisinzano
- Department of Pharmaceutical Sciences, University of Kentucky, Lexington, KY, 40536, USA
| | | | - James K Rowlett
- Program in Neuroscience, University of Mississippi Medical Center, Jackson, MS, 39216, USA
- Division of Neurobiology and Behavior Research, Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, 2500 N. State Street, Jackson, MS, 39216, USA
- Center for Innovation and Discovery in Addictions, University of Mississippi Medical Center, Jackson, MS, 39216, USA
| | - Kevin B Freeman
- Program in Neuroscience, University of Mississippi Medical Center, Jackson, MS, 39216, USA.
- Division of Neurobiology and Behavior Research, Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, 2500 N. State Street, Jackson, MS, 39216, USA.
- Center for Innovation and Discovery in Addictions, University of Mississippi Medical Center, Jackson, MS, 39216, USA.
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Zhang Y, Butelman ER, Kreek MJ. Effect of prenatal and early post-natal oxycodone exposure on the reinforcing and antinociceptive effects of oxycodone in adult C57BL/6 J mice. Psychopharmacology (Berl) 2024; 241:359-377. [PMID: 38086926 DOI: 10.1007/s00213-023-06493-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2023] [Accepted: 10/25/2023] [Indexed: 01/24/2024]
Abstract
Abuse of opioids (mu-opioid agonists such as oxycodone) among parents during the gestation and early post-natal period is a concern for the long-term health of the offspring, beyond potential neonatal withdrawal symptoms. However, there is only limited information on such effects. OBJECTIVES We examined how prenatal, and early-post natal oxycodone exposure affected opioid addiction behaviors. METHODS Adult male and female C57BL/CJ mice housed separately were first injected with ascending doses of oxycodone 1 time/day (1 mg/kg × 10 days, 1.5 mg/kg × 10 days, 2 mg/kg × 10 days, s.c.) whereas control mice were injected with saline. Newly formed parental dyads were then housed together and continued to receive ascending doses of oxycodone (3 mg/kg × 10 days, 4 mg/kg × 10 days, 5 mg/kg × 10 days, 6 mg/kg × 10 days or saline, s.c.) or saline during mating and gestation until the birth of the litter. The dams continued to receive oxycodone or saline through lactation, until F1 offspring were weaned. Upon reaching adulthood (12 weeks of age), male and female F1 offspring were examined in intravenous self-administration (IVSA) of oxycodone, on oxycodone-induced conditioned place preference (CPP) and oxycodone-induced antinociception. RESULTS Adult F1 male and female offspring of parental dyads exposed to oxycodone self-administered more oxycodone, compared to offspring of control parental dyads. Ventral and dorsal striatal mRNA levels of genes such as Fkbp5 and Oprm1 were altered following oxycodone self-administration. CONCLUSION Prenatal and early post-natal oxycodone exposure enhanced oxycodone self-administration during adulthood in the C57BL/6 J mice.
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Affiliation(s)
- Yong Zhang
- Laboratory of the Biology of Addictive Diseases, The Rockefeller University, 1230 York Avenue, Box 171, New York, NY, 10065, USA.
| | - Eduardo R Butelman
- Laboratory of the Biology of Addictive Diseases, The Rockefeller University, 1230 York Avenue, Box 171, New York, NY, 10065, USA
- Neuropsychoimaging of Addictions and Related Conditions Research Program, Department of Psychiatry, Icahn School of Medicine at Mount Sinai, New York, NY, 10029, USA
| | - Mary Jeanne Kreek
- Laboratory of the Biology of Addictive Diseases, The Rockefeller University, 1230 York Avenue, Box 171, New York, NY, 10065, USA
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Khatri SN, Ulangkaya H, Maher EE, Sadek S, Hong M, Woodcox AM, Stoops WW, Gipson CD. Oxycodone withdrawal is associated with increased cocaine self-administration and aberrant accumbens glutamate plasticity in rats. Neuropharmacology 2024; 242:109773. [PMID: 37865136 PMCID: PMC10842432 DOI: 10.1016/j.neuropharm.2023.109773] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Revised: 10/11/2023] [Accepted: 10/18/2023] [Indexed: 10/23/2023]
Abstract
Individuals with opioid use disorder (OUD) frequently use other substances, including cocaine. Opioid withdrawal is associated with increased likelihood of cocaine use, which may represent an attempt to ameliorate opioid withdrawal effects. Clinically, 30% of co-using individuals take opioids and cocaine exclusively in a sequential manner. Preclinical studies evaluating mechanisms of drug use typically study drugs in isolation. However, polysubstance use is a highly prevalent clinical issue and thus, we established a novel preclinical model of sequential oxycodone and cocaine self-administration (SA) whereby rats acquired oxycodone and cocaine SA in an A-B-A-B design. Somatic signs of withdrawal were evaluated at 0, 22, and 24h following oxycodone SA, with the 24h timepoint representing somatic signs immediately following cocaine SA. Preclinically, aberrant glutamate signaling within the nucleus accumbens core (NAcore) occurs following use of cocaine or opioids, whereby medium spiny neurons (MSNs) rest in a potentiated or depotentiated state, respectively. Further, NAcore glial glutamate transport via GLT-1 is downregulated following SA of either drug alone. However, it is not clear if cocaine can exacerbate opioid-induced changes in glutamate signaling. In this study, NAcore GLT-1 protein and glutamate plasticity were measured (via AMPA/NMDA ratio) following SA. Rats acquired SA of both oxycodone and cocaine regardless of sex, and the acute oxycodone-induced increase in somatic signs at 22h was positively correlated with cocaine consumption during the cocaine testing phase. Cocaine use following oxycodone SA downregulated GLT-1 and reduced AMPA/NMDA ratios compared to cocaine use following food SA. Further, oxycodone SA alone was associated with reduced AMPA/NMDA ratio. Together, behavioral signs of oxycodone withdrawal may drive cocaine use and further dysregulate NAcore glutamate signaling.
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Affiliation(s)
- Shailesh N Khatri
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, KY, USA
| | - Hanaa Ulangkaya
- Department of Psychology, Arizona State University, Tempe, AZ, USA
| | - Erin E Maher
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, KY, USA
| | - Safiyah Sadek
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, KY, USA
| | - Mei Hong
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, KY, USA
| | - Andrea M Woodcox
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, KY, USA
| | - William W Stoops
- Department of Behavioral Science, University of Kentucky, Lexington, KY, USA
| | - Cassandra D Gipson
- Department of Pharmacology and Nutritional Sciences, University of Kentucky, Lexington, KY, USA.
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Zhou Q, Ye F, Ye Z, Gao N, Kong Q, Hu X, Qian J, Wu B. The effect of icotinib or apatinib on the pharmacokinetic profile of oxycodone in rats and the underlying mechanism. PeerJ 2023; 11:e16601. [PMID: 38089912 PMCID: PMC10712305 DOI: 10.7717/peerj.16601] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2023] [Accepted: 11/15/2023] [Indexed: 12/18/2023] Open
Abstract
This study aimed to investigate the interactions between icotinib/apatinib and oxycodone in rats and to unveil the underlying mechanism. An ultra-performance liquid chromatography-tandem mass spectrometry (UPLC-MS/MS) method was developed and validated to determine oxycodone and its demethylated metabolite simultaneously. In vivo, Sprague-Dawley (SD) male rats were administered oxycodone with or without icotinib or apatinib. Blood samples were collected and subjected to UPLC-MS/MS analysis. An enzyme incubation assay was performed to investigate the mechanism of drug-drug interaction using both rat and human liver microsomes (RLM and HLM). The results showed that icotinib markedly increased the AUC(0-t) and AUC(0-∞) of oxycodone but decreased the CLz/F. The Cmax of oxycodone increased significantly upon co-administration of apatinib. In vitro, the Km value of oxycodone metabolism was 101.7 ± 5.40 μM and 529.6 ± 19.60 μM in RLMs and HLMs, respectively. Icotinib and apatinib inhibited the disposition of oxycodone, with a mixed mechanism in RLM (IC50 = 3.29 ± 0.090 μM and 0.95 ± 0.88 μM, respectively) and a competitive and mixed mechanism in HLM (IC50 = 22.34 ± 0.81 μM and 0.48 ± 0.05 μM, respectively). In conclusion, both icotinib and apatinib inhibit the metabolism of oxycodone in vitro and in vivo. Therefore, the dose of oxycodone should be reconsidered when co-administered with icotinib or apatinib.
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Affiliation(s)
- Qi Zhou
- Wenzhou Medical University, Wenzhou, China
| | - Feng Ye
- Wenzhou Medical University, Wenzhou, China
| | - Zhize Ye
- Shaoxing People’s Hospital, Shaoxing, China
| | | | - Qihui Kong
- Wenzhou Medical University, Wenzhou, China
| | - Xiaoqin Hu
- Wenzhou Medical University, Wenzhou, China
| | | | - Bin Wu
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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Olsen CM, Glaeser BL, Szabo A, Raff H, Everson CA. The effects of sleep restriction during abstinence on oxycodone seeking: Sex-dependent moderating effects of behavioral and hypothalamic-pituitary-adrenal axis-related phenotypes. Physiol Behav 2023; 272:114372. [PMID: 37805135 PMCID: PMC10841994 DOI: 10.1016/j.physbeh.2023.114372] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Revised: 09/11/2023] [Accepted: 10/04/2023] [Indexed: 10/09/2023]
Abstract
During opioid use and abstinence, sleep disturbances are common and are thought to exacerbate drug craving. In this study, we tested the hypothesis that sleep restriction during abstinence from oxycodone self-administration would increase drug seeking during extinction and footshock reinstatement tests. We also performed behavioral phenotyping to determine if individual variation in responses to stressors and/or pain are associated with oxycodone seeking during abstinence, as stress, pain and sleep disturbance are often co-occurring phenomena. Sleep restriction during abstinence did not have selective effects on oxycodone seeking for either sex in extinction and footshock reinstatement tests. Some phenotypes were associated with drug seeking; these associations differed by sex and type of drug seeking assessment. In female rats, pain-related phenotypes were related to high levels of drug seeking during the initial extinction session. In male rats, lower anxiety-like behavior in the open field was associated with greater drug seeking, although this effect was lost when correcting for oxycodone intake. Adrenal sensitivity prior to oxycodone exposure was positively associated with footshock reinstatement in females. This work identifies sex-dependent relationships between HPA axis function and opioid seeking, indicating that HPA axis function could be a therapeutic target for the treatment of opioid use disorder, with tailored approaches based on sex. Sleep disturbance during abstinence did not appear to be a major contributing factor to opioid seeking.
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Affiliation(s)
- Christopher M Olsen
- Departments of Pharmacology & Toxicology and Neurosurgery, Neuroscience Research Center, Medical College of Wisconsin, 8701 Watertown Plank, Milwaukee, WI 53226, USA.
| | - Breanna L Glaeser
- Department of Pharmacology & Toxicology and Neuroscience Research Center, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Aniko Szabo
- Division of Biostatistics, Institute for Health & Equity, Medical College of Wisconsin, Milwaukee, WI, USA
| | - Hershel Raff
- Department of Medicine (Endocrinology and Molecular Medicine), Surgery, and Physiology, Medical College of Wisconsin, Milwaukee, WI, USA; Endocrine Research Laboratory, Aurora St. Luke's Medical Center, Advocate Aurora Research Institute, Milwaukee, WI, USA
| | - Carol A Everson
- Department of Medicine (Endocrinology and Molecular Medicine) and Cell Biology, Neurobiology & Anatomy, Medical College of Wisconsin, Milwaukee, WI, USA
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Hill R, Sanchez J, Lemel L, Antonijevic M, Hosking Y, Mistry SN, Kruegel AC, Javitch JA, Lane JR, Canals M. Assessment of the potential of novel and classical opioids to induce respiratory depression in mice. Br J Pharmacol 2023; 180:3160-3174. [PMID: 37489013 PMCID: PMC10952895 DOI: 10.1111/bph.16199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Revised: 06/08/2023] [Accepted: 07/15/2023] [Indexed: 07/26/2023] Open
Abstract
BACKGROUND AND PURPOSE Opioid-induced respiratory depression limits the use of μ-opioid receptor agonists in clinical settings and is the main cause of opioid overdose fatalities. The relative potential of different opioid agonists to induce respiratory depression at doses exceeding those producing analgesia is understudied despite its relevance to assessments of opioid safety. Here we evaluated the respiratory depressant and anti-nociceptive effects of three novel opioids and relate these measurements to their in vitro efficacy. EXPERIMENTAL APPROACH Respiration was measured in awake, freely moving male CD-1 mice using whole body plethysmography. Anti-nociception was measured using the hot plate test. Morphine, oliceridine and tianeptine were administered intraperitoneally, whereas methadone, oxycodone and SR-17018 were administered orally. Receptor activation and arrestin-3 recruitment were measured in HEK293 cells using BRET assays. KEY RESULTS Across the dose ranges examined, all opioids studied depressed respiration in a dose-dependent manner, with similar effects at the highest doses, and with tianeptine and oliceridine showing reduced duration of effect, when compared with morphine, oxycodone, methadone and SR-17018. When administered at doses that induced similar respiratory depression, all opioids induced similar anti-nociception, with tianeptine and oliceridine again showing reduced duration of effect. These data were consistent with the in vitro agonist activity of the tested compounds. CONCLUSION AND IMPLICATIONS In addition to providing effective anti-nociception, the novel opioids, oliceridine, tianeptine and SR-17018 depress respiration in male mice. However, the different potencies and kinetics of effect between these novel opioids may be relevant to their therapeutic application in different clinical settings.
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Affiliation(s)
- Rob Hill
- Division of Physiology, Pharmacology and Neuroscience, School of Life Sciences, Queen's Medical CentreUniversity of NottinghamNottinghamUK
- Centre of Membrane Proteins and Receptors, Universities of Nottingham and BirminghamMidlandsUK
| | - Julie Sanchez
- Division of Physiology, Pharmacology and Neuroscience, School of Life Sciences, Queen's Medical CentreUniversity of NottinghamNottinghamUK
- Centre of Membrane Proteins and Receptors, Universities of Nottingham and BirminghamMidlandsUK
| | - Laura Lemel
- Division of Physiology, Pharmacology and Neuroscience, School of Life Sciences, Queen's Medical CentreUniversity of NottinghamNottinghamUK
- Centre of Membrane Proteins and Receptors, Universities of Nottingham and BirminghamMidlandsUK
| | - Mirjana Antonijevic
- Division of Biomolecular Science and Medicinal Chemistry, School of Pharmacy, University of Nottingham Biodiscovery InstituteUniversity ParkNottinghamUK
| | - Yselkla Hosking
- Division of Biomolecular Science and Medicinal Chemistry, School of Pharmacy, University of Nottingham Biodiscovery InstituteUniversity ParkNottinghamUK
| | - Shailesh N. Mistry
- Division of Biomolecular Science and Medicinal Chemistry, School of Pharmacy, University of Nottingham Biodiscovery InstituteUniversity ParkNottinghamUK
| | | | - Jonathan A. Javitch
- Departments of Psychiatry and Molecular Pharmacology and TherapeuticsColumbia University Vagelos College of Physicians & SurgeonsNew YorkNew YorkUSA
- Division of Molecular TherapeuticsNew York State Psychiatric InstituteNew YorkNew YorkUSA
| | - J. Robert Lane
- Division of Physiology, Pharmacology and Neuroscience, School of Life Sciences, Queen's Medical CentreUniversity of NottinghamNottinghamUK
- Centre of Membrane Proteins and Receptors, Universities of Nottingham and BirminghamMidlandsUK
| | - Meritxell Canals
- Division of Physiology, Pharmacology and Neuroscience, School of Life Sciences, Queen's Medical CentreUniversity of NottinghamNottinghamUK
- Centre of Membrane Proteins and Receptors, Universities of Nottingham and BirminghamMidlandsUK
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10
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Blejewski RC, Van Heukelom JT, Langford JS, Hunt KH, Rinkert IR, Wagner TJ, Pitts RC, Hughes CE. Behavioral mechanisms of oxycodone's effects in female and male rats: Reinforcement delay and impulsive choice. Exp Clin Psychopharmacol 2023; 31:1050-1068. [PMID: 37199913 PMCID: PMC10656366 DOI: 10.1037/pha0000646] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/19/2023]
Abstract
μ-Opioid agonists (e.g., morphine) typically increase impulsive choice, which has been interpreted as an opioid-induced increase in sensitivity to reinforcement delay. Relatively little research has been done with opioids other than morphine (e.g., oxycodone), or on sex differences in opioid effects, on impulsive choice. The present study investigated the effects of acute (0.1-1.0 mg/kg) and chronic (1.0 mg/kg twice/day) administration of oxycodone on choice controlled by reinforcement delay, a primary mechanism implicated in impulsive choice, in female and male rats. Rats responded under a concurrent-chains procedure designed to quantify the effects of reinforcement delay on choice within each session. For both sexes, choice was sensitive to delay under this procedure. Sensitivity to delay under baseline was slightly higher for males than females, suggesting more impulsive choice with males. When given acutely, intermediate and higher doses of oxycodone decreased sensitivity to delay; this effect was larger and more reliable in males than females. When given chronically, sex differences were also observed: tolerance developed to the sensitivity-decreasing effects in females, whereas sensitization developed in males. These data suggest that reinforcement delay may play an important role in sex differences in impulsive choice, as well as in the effects of acute and chronic administration of opioids in impulsive choice. However, drug-induced changes in impulsive choice could be related to at least two potential behavioral mechanisms: reinforcement delay and/or reinforcement magnitude. Effects of oxycodone on sensitivity to reinforcement magnitude remain to be fully characterized. (PsycInfo Database Record (c) 2023 APA, all rights reserved).
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Affiliation(s)
| | | | - Jeremy S. Langford
- Department of Psychology, University of North Carolina Wilmington
- Department of Psychology, West Virginia University
| | - Katelyn H. Hunt
- Department of Psychology, University of North Carolina Wilmington
| | | | - Thomas J. Wagner
- Department of Psychology, University of North Carolina Wilmington
| | - Raymond C. Pitts
- Department of Psychology, University of North Carolina Wilmington
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11
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Drinkuth CR, Lehane MJ, Sartor GC. The effects of (2R,6R)-hydroxynorketamine on oxycodone withdrawal and reinstatement. Drug Alcohol Depend 2023; 253:110987. [PMID: 37864957 PMCID: PMC10842506 DOI: 10.1016/j.drugalcdep.2023.110987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 09/13/2023] [Accepted: 09/30/2023] [Indexed: 10/23/2023]
Abstract
Despite the thousands of lives lost during the ongoing opioid crisis, a scarcity of new and effective clinical treatments for opioid use disorder (OUD) remains. To address this unmet need, some researchers have turned to dissociative and psychedelic drugs to treat multiple psychiatric conditions. In particular, low doses of ketamine have been shown to attenuate opioid withdrawal and drug use in clinical and preclinical studies. However, ketamine has misuse liability and dissociative side effects that may limit its widespread application as a treatment for OUD. More recently, (2R,6R)-hydroxynorketamine (HNK), a ketamine metabolite that lacks misuse potential, has gained attention for its effectiveness in depression and stress models. To uncover its role in OUD, we tested the time-dependent effects of (2R,6R)-HNK on oxycodone withdrawal and reinstatement of oxycodone conditioned place preference (CPP). In male and female oxycodone-dependent mice, we found that 24h pretreatment with (2R,6R)-HNK (10 or 30mg/kg, s.c.) reduced the frequency of withdrawal-like behaviors and global withdrawal scores during naloxone-precipitated withdrawal, whereas 1h pretreatment with (2R,6R)-HNK only reduced paw tremors and the sum of global withdrawal scores but not GWS Z-scores. In other experiments, both 1h and 24h pretreatment with (2R,6R)-HNK (30mg/kg, s.c.) blocked drug-induced reinstatement of oxycodone CPP. Finally, we found (2R,6R)-HNK (30mg/kg, sc) had no effect on locomotor activity and thigmotaxis. Together, these results indicate that acute (2R,6R)-HNK has efficacy in some preclinical models of OUD without producing locomotor or anxiety-like side effects.
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Affiliation(s)
- Caryssa R Drinkuth
- Department of Pharmaceutical Sciences, Connecticut Institute for the Brain and Cognitive Sciences (IBACS), University of Connecticut, Storrs, CT 06269, United States
| | - Michael J Lehane
- Department of Pharmaceutical Sciences, Connecticut Institute for the Brain and Cognitive Sciences (IBACS), University of Connecticut, Storrs, CT 06269, United States
| | - Gregory C Sartor
- Department of Pharmaceutical Sciences, Connecticut Institute for the Brain and Cognitive Sciences (IBACS), University of Connecticut, Storrs, CT 06269, United States.
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12
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Illenberger JM, Flores-Ramirez FJ, Pascasio G, Matzeu A, Martin-Fardon R. Daily treatment with the dual orexin receptor antagonist DORA-12 during oxycodone abstinence decreases oxycodone conditioned reinstatement. Neuropharmacology 2023; 239:109685. [PMID: 37579870 PMCID: PMC10529002 DOI: 10.1016/j.neuropharm.2023.109685] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2023] [Revised: 08/02/2023] [Accepted: 08/07/2023] [Indexed: 08/16/2023]
Abstract
Chronic opioid use disturbs circadian rhythm and sleep, encouraging opioid use and relapse. The orexin (OX) system is recruited by opioids and regulates physiological processes including sleep. Dual OX receptor antagonists (DORAs), developed for insomnia treatment, may relieve withdrawal-associated sleep disturbances. This study investigated whether DORA-12, a recently developed DORA, reduces physiological activity disturbances during oxycodone abstinence and consequently prevents oxycodone-seeking behavior. Male and female Wistar rats were trained to intravenously self-administer oxycodone (0.15 mg/kg, 21 sessions; 8 h/session) in the presence of a contextual/discriminative stimulus (SD). The rats were subsequently housed individually (22 h/day) to monitor activity, food and water intake. They received DORA-12 (0-30 mg/kg, p.o.) after undergoing daily 1-h extinction training (14 days). After extinction, the rats were tested for oxycodone-seeking behavior elicited by the SD. Hypothalamus sections were processed to assess oxycodone- or DORA-12-associated changes to the OX cell number. In males, oxycodone-associated increases in activity during the light-phase, reinstatement, and decreases in the number of OX cells observed in the vehicle-treated group were not observed with DORA-12-treatment. Oxycodone-associated increases in light-phase food and water intake were not observed by day 14 of 3 mg/kg DORA-12-treatment and dark-phase water intake was increased across treatment days. In females, OX cell number was unaffected by oxycodone or DORA-12. Three and 30 mg/kg DORA-12 increased females' day 7 dark-phase activity and decreased reinstatement. Thirty mg/kg DORA-12 reduced oxycodone-associated increases in light-phase food and water intake. The results suggest that DORA-12 improves oxycodone-induced disruptions to physiological activities and reduces relapse.
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Affiliation(s)
- Jessica M Illenberger
- The Scripps Research Institute, 10550 North Torrey Pines Road, SR-107, La Jolla, CA, 92037, USA.
| | | | - Glenn Pascasio
- The Scripps Research Institute, 10550 North Torrey Pines Road, SR-107, La Jolla, CA, 92037, USA
| | - Alessandra Matzeu
- The Scripps Research Institute, 10550 North Torrey Pines Road, SR-107, La Jolla, CA, 92037, USA
| | - Rémi Martin-Fardon
- The Scripps Research Institute, 10550 North Torrey Pines Road, SR-107, La Jolla, CA, 92037, USA
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13
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Chong S, Comer SD. Comment on: Effects of selective dopamine D3 receptor partial agonist/antagonists on oxycodone self-administration and antinociception in monkeys. Neuropsychopharmacology 2023; 48:1703-1704. [PMID: 37684521 PMCID: PMC10579295 DOI: 10.1038/s41386-023-01726-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/22/2023] [Revised: 08/25/2023] [Accepted: 08/27/2023] [Indexed: 09/10/2023]
Affiliation(s)
- Samantha Chong
- Division on Substance Use Disorders, New York State Psychiatric Institute, New York, NY, USA
| | - Sandra D Comer
- Division on Substance Use Disorders, New York State Psychiatric Institute, New York, NY, USA.
- Columbia University Irving Medical Center Department of Psychiatry, New York, NY, USA.
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14
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Illenberger JM, Flores-Ramirez FJ, Matzeu A, Lütjens R, Martin-Fardon R. ADX106772, an mGlu2 receptor positive allosteric modulator, selectively attenuates oxycodone taking and seeking. Neuropharmacology 2023; 238:109666. [PMID: 37463637 PMCID: PMC10529136 DOI: 10.1016/j.neuropharm.2023.109666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2023] [Revised: 06/29/2023] [Accepted: 07/10/2023] [Indexed: 07/20/2023]
Abstract
Opioid abuse and overdose have risen to epidemic proportions in the United States. Oxycodone is the most abused prescription opioid. Treatments for opioid use disorder (OUD) seek to reduce vulnerability to relapse by reducing sources of reinforcement to seek drug (i.e., acute drug effects or drug withdrawal/craving). Accumulating evidence that glutamate release elicits drug-seeking behaviors has generated interest in pharmacotherapies targeting the glutamate system. Agonists and positive allosteric modulators of the metabotropic glutamate 2 (mGlu2) receptor decrease glutamate activity, reducing drug taking and seeking. The present study tested whether the mGlu2 receptor positive allosteric modulator ADX106772 reduces oxycodone self-administration and the conditioned reinstatement of oxycodone seeking without affecting behaviors directed toward a highly palatable nondrug reinforcer (sweetened condensed milk). Male Wistar rats were trained to self-administer oxycodone (0.15 mg/kg/infusion, i.v., 12 h/day) or sweetened condensed milk (SCM; diluted 2:1 v/v in H2O, orally, 30 min/day) for 13 days in the presence of a contextual/discriminative stimulus (SD), and the ability of ADX106772 (0, 0.3, 1, 3 and-10 mg/kg, s. c.) to decrease self-administration was tested. The rats then underwent extinction training, during which oxycodone, SCM, and the SD were withheld. After extinction, the ability of ADX106772 to prevent SD-induced conditioned reinstatement of oxycodone and SCM seeking was tested. ADX106772 reduced oxycodone self-administration and conditioned reinstatement without affecting SCM self-administration or conditioned reinstatement. ADX106772 reduced oxycodone taking and seeking and did not affect the motivation for the palatable conventional reinforcer, SCM, suggesting that activating mGlu2 receptors with a positive allosteric modulator is a potential approach for prescription OUD treatment.
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Affiliation(s)
- Jessica M Illenberger
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, USA.
| | | | - Alessandra Matzeu
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, USA
| | | | - Rémi Martin-Fardon
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, USA
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15
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Huskinson SL, Platt DM, Smith ZR, Doyle WS, Zamarripa CA, Dunaway K, Prisinzano TE, Freeman KB. Quantification of observable behaviors following oral administration of oxycodone and nalfurafine in male rhesus monkeys. Drug Alcohol Depend 2023; 252:110953. [PMID: 37734282 PMCID: PMC10615792 DOI: 10.1016/j.drugalcdep.2023.110953] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/19/2023] [Revised: 08/08/2023] [Accepted: 08/28/2023] [Indexed: 09/23/2023]
Abstract
BACKGROUND Recent preclinical studies have investigated the atypical kappa-opioid receptor (KOR) agonist, nalfurafine, as a co-formulary with mu-opioid receptor (MOR) agonists as a potential deterrent for misuse. However, no study has investigated effects of nalfurafine combined with a MOR agonist using an oral route of administration. The objective of the current study was to measure behavioral effects of orally administered oxycodone and nalfurafine, alone and combined, in rhesus monkeys using a quantitative behavioral observation procedure. METHODS Adult male rhesus monkeys (N=5) were orally administered vehicle, oxycodone (0.56-1.8mg/kg), nalfurafine (0.001-0.0056mg/kg), or mixtures (1.0mg/kg oxycodone/0.001-0.0056mg/kg nalfurafine) in a Jell-O vehicle at multiple timepoints (10-320min). Species-typical and drug-induced behaviors were recorded by observers blinded to conditions. RESULTS Oxycodone alone significantly increased scratch and face-rub behaviors without affecting other behaviors. Nalfurafine decreased baseline levels of scratch without affecting other behaviors, and oxycodone-nalfurafine combinations resulted in reduced oxycodone-induced scratching at a dose (0.001mg/kg) that did not produce sedation-like effects. Oxycodone combined with larger nalfurafine doses (0.0032-0.0056mg/kg) also reduced oxycodone induced scratch that were accompanied with sedation-like effects (i.e., increased lip droop). CONCLUSIONS Nalfurafine was orally active in rhesus monkeys, and it reduced oxycodone-induced pruritus at a dose that did not produce sedation-like effects that are commonly observed with prototypical KOR agonists. Combinations of low doses of nalfurafine with MOR agonists such as oxycodone may be well-tolerated by humans who are prescribed MOR agonists for the treatment of pain.
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Affiliation(s)
- Sally L Huskinson
- Division of Neurobiology and Behavior Research, Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS 39216, USA; Program in Neuroscience, University of Mississippi Medical Center, Jackson, MS 39216.
| | - Donna M Platt
- Division of Neurobiology and Behavior Research, Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS 39216, USA; Program in Neuroscience, University of Mississippi Medical Center, Jackson, MS 39216
| | - Zachary R Smith
- Division of Neurobiology and Behavior Research, Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - William S Doyle
- Program in Neuroscience, University of Mississippi Medical Center, Jackson, MS 39216
| | - C Austin Zamarripa
- Department of Psychiatry and Behavioral Science, Johns Hopkins University School of Medicine, Baltimore, MD 21224, USA
| | - Kristen Dunaway
- Division of Neurobiology and Behavior Research, Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS 39216, USA
| | - Thomas E Prisinzano
- Department of Pharmaceutical Sciences, University of Kentucky, Lexington, KY 40506, USA
| | - Kevin B Freeman
- Division of Neurobiology and Behavior Research, Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS 39216, USA; Program in Neuroscience, University of Mississippi Medical Center, Jackson, MS 39216
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16
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Schmidt HD, Zhang Y, Xi J, Zanni G, Liu R, Barr GA. A new formulation of dezocine, Cyc-dezocine, reduces oxycodone self-administration in female and male rats. Neurosci Lett 2023; 815:137479. [PMID: 37714288 DOI: 10.1016/j.neulet.2023.137479] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 08/30/2023] [Accepted: 09/12/2023] [Indexed: 09/17/2023]
Abstract
Dezocine is a partial mu opioid receptor agonist previously used as an analgesic for perioperative acute pain in the US and is now the most used perioperative analgesic in China. In general, dezocine is well-tolerated, with relatively minimal risk of fatal respiratory depression. To our knowledge, there are no reports of dezocine addiction, which suggests that the abuse liability of dezocine is low. The overarching goal of this study was to determine the efficacy of a novel formulation of dezocine (Cyc-dezocine), developed for intraperitoneal or intranasal administration, to reduce voluntary opioid taking in rats. One cohort of male rats self-administered intravenous oxycodone on a fixed-ratio 5 schedule of reinforcement. Once oxycodone taking stabilized, rats were pretreated with systemic injections of vehicle or Cyc-dezocine. Cyc-dezocine dose-dependently reduced intravenous oxycodone self-administration. A second cohort of male and female rats self-administered oral oxycodone from drinking water. Once oxycodone taking stabilized, rats were pretreated with intra-nasal Cyc-dezocine. Consistent with the effects of i.p. Cyc-dezocine in our intravenous oxycodone studies, intra-nasal Cyc-dezocine attenuated oral oxycodone self-administration. Together, these findings support the need for further studies investigating the therapeutic potential of Cyc-dezocine for treating opioid use disorder.
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Affiliation(s)
- Heath D Schmidt
- Department of Biobehavioral Health Sciences, School of Nursing, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Yafang Zhang
- Department of Biobehavioral Health Sciences, School of Nursing, University of Pennsylvania, Philadelphia, PA 19104, USA; Department of Psychiatry, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Jin Xi
- Department of Anesthesiology and Critical Care Medicine, Perelman School of Medicine, University of Pennsylvania, USA
| | - Giulia Zanni
- Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, USA
| | - Renyu Liu
- Department of Anesthesiology and Critical Care Medicine, Perelman School of Medicine, University of Pennsylvania, USA
| | - Gordon A Barr
- Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, USA; Department of Anesthesiology and Critical Care Medicine, Perelman School of Medicine, University of Pennsylvania, USA; Department of Psychology, University of Pennsylvania, USA.
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17
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Olaniran A, Altshuler RD, Burke MAM, Lin H, Firlie J, Linshitz I, Li X. Role of oestrous cycle and orbitofrontal cortex in oxycodone seeking after 15-day abstinence in female rats. Addict Biol 2023; 28:e13325. [PMID: 37753563 DOI: 10.1111/adb.13325] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2023] [Revised: 07/24/2023] [Accepted: 07/28/2023] [Indexed: 09/28/2023]
Abstract
Relapse to oxycodone seeking progressively increases after abstinence in rats, a phenomenon termed incubation of oxycodone craving. We have previously shown that the orbitofrontal cortex (OFC) plays a critical role in incubation of oxycodone craving in male rats. Here, we examined the effect of oestrous cycle on incubated oxycodone seeking in female rats, and whether the critical role of OFC in incubated oxycodone seeking generalizes to female rats. We first assessed oxycodone self-administration and incubated oxycodone seeking on abstinence day 15 across the oestrous cycle. Next, we determined the effect of chemogenetic inactivation of OFC by JHU37160 (J60), a novel agonist for Designer Receptors Exclusively Activated by Designer Drugs (DREADDs), on incubated oxycodone seeking on abstinence day 15. Finally, we determined the effect of J60 alone on incubated oxycodone seeking on abstinence day 15. We found no difference in oxycodone intake across oestrus, pro-oestrus, and metoestrus stages during oxycodone self-administration training. Incubated oxycodone seeking was also similar between nonoestrus and oestrus female rats. Moreover, chemogenetic inactivation of OFC by J60 decreased incubated oxycodone seeking on abstinence day 15, while J60 alone had no effect on incubated oxycodone seeking in no-DREADD control rats. Taken together, results here show that the oestrous cycle has no effect on oxycodone intake and incubated oxycodone seeking in female rats under our experimental conditions. Furthermore, consistent with our previous findings in male rats, results here show that OFC also plays a critical role in incubated oxycodone seeking in female rats.
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Affiliation(s)
- Adedayo Olaniran
- Department of Psychology, University of Maryland College Park, College Park, Maryland, USA
| | - Rachel D Altshuler
- Department of Psychology, University of Maryland College Park, College Park, Maryland, USA
| | - Megan A M Burke
- Department of Psychology, University of Maryland College Park, College Park, Maryland, USA
| | - Hongyu Lin
- Department of Psychology, University of Maryland College Park, College Park, Maryland, USA
| | - Julia Firlie
- Department of Psychology, University of Maryland College Park, College Park, Maryland, USA
| | - Ilan Linshitz
- Department of Psychology, University of Maryland College Park, College Park, Maryland, USA
| | - Xuan Li
- Department of Psychology, University of Maryland College Park, College Park, Maryland, USA
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18
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Athota P, Nguyen NM, Schaal VL, Jagadesan S, Guda C, Yelamanchili SV, Pendyala G. Novel RNA-Seq Signatures Post-Methamphetamine and Oxycodone Use in a Model of HIV-Associated Neurocognitive Disorders. Viruses 2023; 15:1948. [PMID: 37766354 PMCID: PMC10534928 DOI: 10.3390/v15091948] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2023] [Revised: 08/24/2023] [Accepted: 09/15/2023] [Indexed: 09/29/2023] Open
Abstract
In the 21st century, the effects of HIV-associated neurocognitive disorders (HAND) have been significantly reduced in individuals due to the development of antiretroviral therapies (ARTs). However, the growing epidemic of polysubstance use (PSU) has led to concern for the effects of PSU on HIV-seropositive individuals. To effectively treat individuals affected by HAND, it is critical to understand the biological mechanisms affected by PSU, including the identification of novel markers. To fill this important knowledge gap, we used an in vivo HIV-1 Transgenic (HIV-1 Tg) animal model to investigate the effects of the combined use of chronic methamphetamine (METH) and oxycodone (oxy). A RNA-Seq analysis on the striatum-a brain region that is primarily targeted by both HIV and drugs of abuse-identified key differentially expressed markers post-METH and oxy exposure. Furthermore, ClueGO analysis and Ingenuity Pathway Analysis (IPA) revealed crucial molecular and biological functions associated with ATP-activated adenosine receptors, neuropeptide hormone activity, and the oxytocin signaling pathway to be altered between the different treatment groups. The current study further reveals the harmful effects of chronic PSU and HIV infection that can subsequently impact neurological outcomes in polysubstance users with HAND.
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Affiliation(s)
- Pranavi Athota
- Department of Anesthesiology, University of Nebraska Medical Center (UNMC), Omaha, NE 68198, USA; (P.A.); (N.M.N.); (V.L.S.); (S.V.Y.)
| | - Nghi M. Nguyen
- Department of Anesthesiology, University of Nebraska Medical Center (UNMC), Omaha, NE 68198, USA; (P.A.); (N.M.N.); (V.L.S.); (S.V.Y.)
- Department of Genetics, Cell Biology, and Anatomy, University of Nebraska Medical Center (UNMC), Omaha, NE 68198, USA; (S.J.); (C.G.)
| | - Victoria L. Schaal
- Department of Anesthesiology, University of Nebraska Medical Center (UNMC), Omaha, NE 68198, USA; (P.A.); (N.M.N.); (V.L.S.); (S.V.Y.)
| | - Sankarasubramanian Jagadesan
- Department of Genetics, Cell Biology, and Anatomy, University of Nebraska Medical Center (UNMC), Omaha, NE 68198, USA; (S.J.); (C.G.)
| | - Chittibabu Guda
- Department of Genetics, Cell Biology, and Anatomy, University of Nebraska Medical Center (UNMC), Omaha, NE 68198, USA; (S.J.); (C.G.)
| | - Sowmya V. Yelamanchili
- Department of Anesthesiology, University of Nebraska Medical Center (UNMC), Omaha, NE 68198, USA; (P.A.); (N.M.N.); (V.L.S.); (S.V.Y.)
- Department of Genetics, Cell Biology, and Anatomy, University of Nebraska Medical Center (UNMC), Omaha, NE 68198, USA; (S.J.); (C.G.)
- National Strategic Research Institute, Nebraska Medical Center, Omaha, NE 68198, USA
| | - Gurudutt Pendyala
- Department of Anesthesiology, University of Nebraska Medical Center (UNMC), Omaha, NE 68198, USA; (P.A.); (N.M.N.); (V.L.S.); (S.V.Y.)
- Department of Genetics, Cell Biology, and Anatomy, University of Nebraska Medical Center (UNMC), Omaha, NE 68198, USA; (S.J.); (C.G.)
- National Strategic Research Institute, Nebraska Medical Center, Omaha, NE 68198, USA
- Child Health Research Institute, Omaha, NE 68198, USA
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19
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Babb JA, Constantino NJ, Kaplan GB, Chartoff EH. Estrous cycle dependent expression of oxycodone conditioned reward in rats. Sci Rep 2023; 13:13946. [PMID: 37626154 PMCID: PMC10457365 DOI: 10.1038/s41598-023-40971-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2023] [Accepted: 08/19/2023] [Indexed: 08/27/2023] Open
Abstract
Oxycodone is one of the most widely prescribed and misused opioid painkillers in the United States. Evidence suggests that biological sex and hormonal status can impact drug reward in humans and rodents, but the extent to which these factors can influence the rewarding effects of oxycodone is unclear. The purpose of this study was to utilize place conditioning to determine the effects of sex and female hormonal status on the expression of oxycodone conditioned reward in rats. Gonadally intact adult Sprague-Dawley male and female rats were used to test: (1) whether both sexes express conditioned reward to oxycodone at similar doses, (2) the impact of conditioning session length on oxycodone conditioned reward expression in both sexes, and (3) the influence of female estrous cycle stage on oxycodone conditioned reward expression. Both sexes expressed conditioned reward at the same doses of oxycodone. Increasing the length of conditioning sessions did not reveal an effect of sex and resulted in lower magnitude conditioned reward expression. Importantly however, female stage of estrous cycle significantly influenced oxycodone conditioned reward expression. These results suggest that female hormonal status can impact the rewarding effects of opioids and thus have important implications for prescription opioid treatment practices.
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Affiliation(s)
- Jessica A Babb
- Research and Mental Health Services, VA Boston Healthcare System, Boston, Massachusetts, USA.
- Department of Psychiatry, Harvard Medical School, Boston, Massachusetts, USA.
| | | | - Gary B Kaplan
- Research and Mental Health Services, VA Boston Healthcare System, Boston, Massachusetts, USA
- Department of Psychiatry, Harvard Medical School, Boston, Massachusetts, USA
- Department of Psychiatry, Boston University School of Medicine, Boston, Massachusetts, USA
| | - Elena H Chartoff
- Department of Psychiatry, Harvard Medical School, Boston, Massachusetts, USA
- Division of Basic Neuroscience, McLean Hospital, Belmont, Massachusetts, USA
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20
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Pryce KD, Serafini RA, Ramakrishnan A, Nicolais A, Giosan IM, Polizu C, Torres-Berrío A, Vuppala S, Kronman H, Ruiz A, Gaspari S, Peña CJ, Sakloth F, Mitsi V, van Duzer J, Mazitschek R, Jarpe M, Shen L, Nestler EJ, Zachariou V. Oxycodone withdrawal induces HDAC1/HDAC2-dependent transcriptional maladaptations in the reward pathway in a mouse model of peripheral nerve injury. Nat Neurosci 2023; 26:1229-1244. [PMID: 37291337 PMCID: PMC10752505 DOI: 10.1038/s41593-023-01350-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2021] [Accepted: 04/25/2023] [Indexed: 06/10/2023]
Abstract
The development of physical dependence and addiction disorders due to misuse of opioid analgesics is a major concern with pain therapeutics. We developed a mouse model of oxycodone exposure and subsequent withdrawal in the presence or absence of chronic neuropathic pain. Oxycodone withdrawal alone triggered robust gene expression adaptations in the nucleus accumbens, medial prefrontal cortex and ventral tegmental area, with numerous genes and pathways selectively affected by oxycodone withdrawal in mice with peripheral nerve injury. Pathway analysis predicted that histone deacetylase (HDAC) 1 is a top upstream regulator in opioid withdrawal in nucleus accumbens and medial prefrontal cortex. The novel HDAC1/HDAC2 inhibitor, Regenacy Brain Class I HDAC Inhibitor (RBC1HI), attenuated behavioral manifestations of oxycodone withdrawal, especially in mice with neuropathic pain. These findings suggest that inhibition of HDAC1/HDAC2 may provide an avenue for patients with chronic pain who are dependent on opioids to transition to non-opioid analgesics.
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Affiliation(s)
- Kerri D Pryce
- Nash Family Department of Neuroscience, Department of Pharmacological Sciences, and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Randal A Serafini
- Nash Family Department of Neuroscience, Department of Pharmacological Sciences, and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Aarthi Ramakrishnan
- Nash Family Department of Neuroscience, Department of Pharmacological Sciences, and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Andrew Nicolais
- Nash Family Department of Neuroscience, Department of Pharmacological Sciences, and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Ilinca M Giosan
- Nash Family Department of Neuroscience, Department of Pharmacological Sciences, and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
- Boston University Chobanian and Avedisian School of Medicine, Boston, MA, USA
| | - Claire Polizu
- Nash Family Department of Neuroscience, Department of Pharmacological Sciences, and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Angélica Torres-Berrío
- Nash Family Department of Neuroscience, Department of Pharmacological Sciences, and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Sreeya Vuppala
- Nash Family Department of Neuroscience, Department of Pharmacological Sciences, and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Hope Kronman
- Nash Family Department of Neuroscience, Department of Pharmacological Sciences, and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Anne Ruiz
- Nash Family Department of Neuroscience, Department of Pharmacological Sciences, and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Sevasti Gaspari
- Nash Family Department of Neuroscience, Department of Pharmacological Sciences, and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | - Farhana Sakloth
- Nash Family Department of Neuroscience, Department of Pharmacological Sciences, and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Vasiliki Mitsi
- Nash Family Department of Neuroscience, Department of Pharmacological Sciences, and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | | | - Ralph Mazitschek
- Center for Systems Biology, Massachusetts General Hospital, Boston, MA, USA
| | | | - Li Shen
- Nash Family Department of Neuroscience, Department of Pharmacological Sciences, and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Eric J Nestler
- Nash Family Department of Neuroscience, Department of Pharmacological Sciences, and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA
| | - Venetia Zachariou
- Nash Family Department of Neuroscience, Department of Pharmacological Sciences, and Friedman Brain Institute, Icahn School of Medicine at Mount Sinai, New York, NY, USA.
- Boston University Chobanian and Avedisian School of Medicine, Boston, MA, USA.
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21
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Chiariello R, McCarthy C, Glaeser BL, Shah AS, Budde MD, Stemper BD, Olsen CM. Chronicity of repeated blast traumatic brain injury associated increase in oxycodone seeking in rats. Behav Brain Res 2023; 438:114181. [PMID: 36330906 PMCID: PMC9993345 DOI: 10.1016/j.bbr.2022.114181] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 10/18/2022] [Accepted: 10/25/2022] [Indexed: 11/06/2022]
Abstract
Numerous epidemiological studies have found co-morbidity between non-severe traumatic brain injury (TBI) and substance misuse in both civilian and military populations. Preclinical studies have also identified this relationship for some misused substances. We have previously demonstrated that repeated blast traumatic brain injury (rbTBI) increased oxycodone seeking without increasing oxycodone self-administration, suggesting that the neurological sequelae of traumatic brain injury can elevate opioid misuse liability. Here, we determined the chronicity of this effect by testing different durations of time between injury and oxycodone self-administration and durations of abstinence. We found that the subchronic (four weeks), but not the acute (three days) or chronic (four months) duration between injury and oxycodone self-administration was associated with increased drug seeking and re-acquisition of self-administration following a 10-day abstinence. Examination of other abstinence durations (two days, four weeks, or four months) revealed no effect of rbTBI on drug seeking at any of the abstinence durations tested. Together, these data indicate that there is a window of vulnerability after TBI when oxycodone self-administration is associated with elevated drug seeking and relapse-related behaviors.
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Affiliation(s)
- Rachel Chiariello
- Department of Neurosurgery, Medical College of Wisconsin, United States; Clement J. Zablocki Veterans Affairs Medical Center, United States
| | - Cassandra McCarthy
- Department of Neurosurgery, Medical College of Wisconsin, United States; Clement J. Zablocki Veterans Affairs Medical Center, United States
| | - Breanna L Glaeser
- Department of Pharmacology and Toxicology, Medical College of Wisconsin, United States; Neuroscience Research Center, Medical College of Wisconsin, United States
| | - Alok S Shah
- Department of Neurosurgery, Medical College of Wisconsin, United States; Clement J. Zablocki Veterans Affairs Medical Center, United States
| | - Matthew D Budde
- Department of Neurosurgery, Medical College of Wisconsin, United States; Clement J. Zablocki Veterans Affairs Medical Center, United States; Neuroscience Research Center, Medical College of Wisconsin, United States
| | - Brian D Stemper
- Clement J. Zablocki Veterans Affairs Medical Center, United States; Neuroscience Research Center, Medical College of Wisconsin, United States; Joint Department of Biomedical Engineering, Marquette University and Medical College of Wisconsin, United States
| | - Christopher M Olsen
- Department of Neurosurgery, Medical College of Wisconsin, United States; Department of Pharmacology and Toxicology, Medical College of Wisconsin, United States; Neuroscience Research Center, Medical College of Wisconsin, United States.
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22
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Harris HM, Gul W, ElSohly MA, Sufka KJ. Differential Effects of Cannabidiol and a Novel Cannabidiol Analog on Oxycodone Place Preference and Analgesia in Mice: an Opioid Abuse Deterrent with Analgesic Properties. Cannabis Cannabinoid Res 2022; 7:804-813. [PMID: 34962133 PMCID: PMC9784596 DOI: 10.1089/can.2021.0050] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
Background and Purpose: This study sought to determine whether cannabidiol (CBD) or a CBD derivative, CBD monovalinate monohemisuccinate (CBD-val-HS), could attenuate the development of oxycodone reward while retaining its analgesic effects. Experimental Approach: To determine the effect on oxycodone reward, animals were enrolled in the conditioned place preference paradigm and received either saline or oxycodone (3.0 mg/kg) in combination with either CBD or CBD-val-HS utilizing three sets of drug-/no drug-conditioning trials. To determine if the doses of CBD or CBD-val-HS that blocked opioid reward would affect nociceptive processes, animals were enrolled in the hot plate and abdominal writhing assays when administered alone or in combination with a subanalgesic (1.0 mg/kg) or analgesic (3.0 mg/kg) dose of oxycodone. Key Results: Results from condition place preference demonstrated CBD was not able attenuate oxycodone place preference while CBD-val-HS attenuated these rewarding effects at 8.0 mg/kg and was void of rewarding or aversive properties. In contrast to CBD, CBD-val-HS alone produced analgesic effects in both nociceptive assays but was most effective compared with oxycodone against thermal nociception. Of interest, there was a differential interaction of CBD and CBD-val-HS×oxycodone across the two nociceptive assays producing subadditive responses on the hot plate assay, whereas additive responses were observed in the abdominal writhing assay. Conclusion: These findings suggest CBD-val-HS alone, a nonrewarding analgesic compound, could be useful in pain management and addiction treatment settings.
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Affiliation(s)
- Hannah M. Harris
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, Mississippi, USA
| | - Waseem Gul
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, Mississippi, USA
- ElSohly Laboratories, Inc., Oxford, Mississippi, USA
| | - Mahmoud A. ElSohly
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, Mississippi, USA
- ElSohly Laboratories, Inc., Oxford, Mississippi, USA
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, University, Mississippi, USA
| | - Kenneth J. Sufka
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, Mississippi, USA
- Department of Psychology, University of Mississippi, University, Mississippi, USA
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23
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Wong B, Zimbelman AR, Milovanovic M, Wolf ME, Stefanik MT. GluA2-lacking AMPA receptors in the nucleus accumbens core and shell contribute to the incubation of oxycodone craving in male rats. Addict Biol 2022; 27:e13237. [PMID: 36301206 PMCID: PMC10655598 DOI: 10.1111/adb.13237] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 07/31/2022] [Accepted: 09/22/2022] [Indexed: 01/24/2023]
Abstract
One of the most challenging issues in the treatment of substance use disorder, including misuse of opioids such as oxycodone, is persistent vulnerability to relapse, often triggered by cues or contexts previously associated with drug use. In rats, cue-induced craving progressively intensifies ('incubates') during withdrawal from extended-access self-administration of several classes of misused drugs, including the psychostimulants cocaine and methamphetamine. For these psychostimulants, incubation is associated with strengthening of excitatory synapses in the nucleus accumbens (NAc) through incorporation of α-amino-3-hydroxy-5-methyl-4-isoxazole propionic acid receptors that lack the GluA2 subunit and are therefore Ca2+ -permeable (CP-AMPARs). Once CP-AMPAR upregulation occurs, their stimulation is required for expression of incubation. It is not known if a similar mechanism contributes to incubation of oxycodone craving. Using male rats, we established that incubation occurs by withdrawal day (WD) 15 and persists through WD30. Then, using cell-surface biotinylation, we found that surface levels of the AMPAR subunit GluA1 but not GluA2 are elevated in NAc core and shell of oxycodone rats on WD15, although this wanes by WD30. Next, using intra-NAc injection of the selective CP-AMPAR antagonist Naspm before a seeking test, we demonstrate that CP-AMPAR blockade in either subregion decreases oxycodone seeking on WD15 or WD30 (after incubation), but not WD1, and has no effect in saline self-administering animals. The Naspm results suggest CP-AMPARs persist in synapses through WD30 even if total cell surface levels wane. These results suggest that a common neurobiological mechanism contributes to expression of incubation of craving for oxycodone and psychostimulants.
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Affiliation(s)
- Benjamin Wong
- Department of Psychology and Neuroscience, North Central College, Naperville, Illinois, USA
| | - Alexa R. Zimbelman
- Department of Psychology and Neuroscience, North Central College, Naperville, Illinois, USA
| | - Mike Milovanovic
- Department of Neuroscience, Chicago Medical School at Rosalind Franklin University of Medicine and Science, North Chicago, Illinois, USA
| | - Marina E. Wolf
- Department of Neuroscience, Chicago Medical School at Rosalind Franklin University of Medicine and Science, North Chicago, Illinois, USA
- Department of Behavioral Neuroscience, Oregon Health & Science University, Portland, Oregon, USA
| | - Michael T. Stefanik
- Department of Psychology and Neuroscience, North Central College, Naperville, Illinois, USA
- Department of Neuroscience, Chicago Medical School at Rosalind Franklin University of Medicine and Science, North Chicago, Illinois, USA
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24
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Mitra S, Thomas SA, Martin JA, Williams J, Woodhouse K, Chandra R, Li JX, Lobo MK, Sim FJ, Dietz DM. EGR3 regulates opioid-related nociception and motivation in male rats. Psychopharmacology (Berl) 2022; 239:3539-3550. [PMID: 36098762 PMCID: PMC10094589 DOI: 10.1007/s00213-022-06226-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/19/2022] [Accepted: 08/24/2022] [Indexed: 01/11/2023]
Abstract
Chronic pain can be a debilitating condition, leading to profound changes in nearly every aspect of life. However, the reliance on opioids such as oxycodone for pain management is thought to initiate dependence and addiction liability. The neurobiological intersection at which opioids relieve pain and possibly transition to addiction is poorly understood. Using RNA sequencing pathway analysis in rats with complete Freund's adjuvant (CFA)-induced chronic inflammation, we found that the transcriptional signatures in the medial prefrontal cortex (mPFC; a brain region where pain and reward signals integrate) elicited by CFA in combination with oxycodone differed from those elicited by CFA or oxycodone alone. However, the expression of Egr3 was augmented in all animals receiving oxycodone. Furthermore, virus-mediated overexpression of EGR3 in the mPFC increased mechanical pain relief but not the affective aspect of pain in animals receiving oxycodone, whereas pharmacological inhibition of EGR3 via NFAT attenuated mechanical pain relief. Egr3 overexpression also increased the motivation to obtain oxycodone infusions in a progressive ratio test without altering the acquisition or maintenance of oxycodone self-administration. Taken together, these data suggest that EGR3 in the mPFC is at the intersection of nociceptive and addictive-like behaviors.
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Affiliation(s)
- Swarup Mitra
- Program in Neuroscience, Department of Pharmacology and Toxicology, The State University of New York at Buffalo, 955 Main Street, Buffalo, NY, 14203, USA.
- Department of Biomedical Sciences, John C. Edwards School of Medicine, Marshall University, 1700, 3rd Avenue, Huntington, WV, 25755, USA.
| | - Shruthi A Thomas
- Program in Neuroscience, Department of Pharmacology and Toxicology, The State University of New York at Buffalo, 955 Main Street, Buffalo, NY, 14203, USA
| | - Jennifer A Martin
- Program in Neuroscience, Department of Pharmacology and Toxicology, The State University of New York at Buffalo, 955 Main Street, Buffalo, NY, 14203, USA
| | - Jamal Williams
- Program in Neuroscience, Department of Pharmacology and Toxicology, The State University of New York at Buffalo, 955 Main Street, Buffalo, NY, 14203, USA
| | - Kristen Woodhouse
- Program in Neuroscience, Department of Pharmacology and Toxicology, The State University of New York at Buffalo, 955 Main Street, Buffalo, NY, 14203, USA
| | - Ramesh Chandra
- Department of Anatomy and Neurobiology, University of Maryland, Baltimore, MD, USA
| | - Jun Xu Li
- Program in Neuroscience, Department of Pharmacology and Toxicology, The State University of New York at Buffalo, 955 Main Street, Buffalo, NY, 14203, USA
| | - Mary Kay Lobo
- Department of Anatomy and Neurobiology, University of Maryland, Baltimore, MD, USA
| | - Fraser J Sim
- Program in Neuroscience, Department of Pharmacology and Toxicology, The State University of New York at Buffalo, 955 Main Street, Buffalo, NY, 14203, USA
| | - David M Dietz
- Program in Neuroscience, Department of Pharmacology and Toxicology, The State University of New York at Buffalo, 955 Main Street, Buffalo, NY, 14203, USA.
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25
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Samson KR, Xu W, Kortagere S, España RA. Intermittent access to oxycodone decreases dopamine uptake in the nucleus accumbens core during abstinence. Addict Biol 2022; 27:e13241. [PMID: 36301217 PMCID: PMC10262085 DOI: 10.1111/adb.13241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 07/29/2022] [Accepted: 09/27/2022] [Indexed: 01/24/2023]
Abstract
A major obstacle in treating opioid use disorder is the persistence of drug seeking or craving during periods of abstinence, which is believed to contribute to relapse. Dopamine transmission in the mesolimbic pathway is posited to contribute to opioid reinforcement, but the processes by which dopamine influences drug seeking have not been completely elucidated. To examine whether opioid seeking during abstinence is associated with alterations in dopamine transmission, female and male rats self-administered oxycodone under an intermittent access schedule of reinforcement. Following self-administration, rats underwent a forced abstinence period, and cue-induced seeking tests were conducted to assess oxycodone seeking. One day following the final seeking test, rats were sacrificed to perform ex vivo fast scan cyclic voltammetry and western blotting in the nucleus accumbens. Rats displayed reduced dopamine uptake rate on abstinence day 2 and abstinence day 15, compared to oxycodone-naïve rats. Further, on abstinence day 15, rats had reduced phosphorylation of the dopamine transporter. Additionally, local application of oxycodone to the nucleus accumbens reduced dopamine uptake in oxycodone-naïve rats and in rats during oxycodone abstinence, on abstinence day 2 and abstinence day 15. These observations suggest that abstinence from oxycodone results in dysfunctional dopamine transmission, which may contribute to sustained oxycodone seeking during abstinence.
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Affiliation(s)
- Kyle R. Samson
- Drexel University College of Medicine, Department of Neurobiology and Anatomy
| | - Wei Xu
- Drexel University College of Medicine, Department of Microbiology and Immunology
| | - Sandhya Kortagere
- Drexel University College of Medicine, Department of Microbiology and Immunology
| | - Rodrigo A. España
- Drexel University College of Medicine, Department of Neurobiology and Anatomy
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26
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Florian J, van der Schrier R, Gershuny V, Davis MC, Wang C, Han X, Burkhart K, Prentice K, Shah A, Racz R, Patel V, Matta M, Ismaiel OA, Weaver J, Boughner R, Ford K, Rouse R, Stone M, Sanabria C, Dahan A, Strauss DG. Effect of Paroxetine or Quetiapine Combined With Oxycodone vs Oxycodone Alone on Ventilation During Hypercapnia: A Randomized Clinical Trial. JAMA 2022; 328:1405-1414. [PMID: 36219407 PMCID: PMC9554704 DOI: 10.1001/jama.2022.17735] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
IMPORTANCE Opioids can cause severe respiratory depression by suppressing feedback mechanisms that increase ventilation in response to hypercapnia. Following the addition of boxed warnings to benzodiazepine and opioid products about increased respiratory depression risk with simultaneous use, the US Food and Drug Administration evaluated whether other drugs that might be used in place of benzodiazepines may cause similar effects. OBJECTIVE To study whether combining paroxetine or quetiapine with oxycodone, compared with oxycodone alone, decreases the ventilatory response to hypercapnia. DESIGN, SETTING, AND PARTICIPANTS Randomized, double-blind, crossover clinical trial at a clinical pharmacology unit (West Bend, Wisconsin) with 25 healthy participants from January 2021 through May 25, 2021. INTERVENTIONS Oxycodone 10 mg on days 1 and 5 and the following in a randomized order for 5 days: paroxetine 40 mg daily, quetiapine twice daily (increasing daily doses from 100 mg to 400 mg), or placebo. MAIN OUTCOMES AND MEASURES Ventilation at end-tidal carbon dioxide of 55 mm Hg (hypercapnic ventilation) using rebreathing methodology assessed for paroxetine or quetiapine with oxycodone, compared with placebo and oxycodone, on days 1 and 5 (primary) and for paroxetine or quetiapine alone compared with placebo on day 4 (secondary). RESULTS Among 25 participants (median age, 35 years [IQR, 30-40 years]; 11 female [44%]), 19 (76%) completed the trial. The mean hypercapnic ventilation was significantly decreased with paroxetine plus oxycodone vs placebo plus oxycodone on day 1 (29.2 vs 34.1 L/min; mean difference [MD], -4.9 L/min [1-sided 97.5% CI, -∞ to -0.6]; P = .01) and day 5 (25.1 vs 35.3 L/min; MD, -10.2 L/min [1-sided 97.5% CI, -∞ to -6.3]; P < .001) but was not significantly decreased with quetiapine plus oxycodone vs placebo plus oxycodone on day 1 (33.0 vs 34.1 L/min; MD, -1.2 L/min [1-sided 97.5% CI, -∞ to 2.8]; P = .28) or on day 5 (34.7 vs 35.3 L/min; MD, -0.6 L/min [1-sided 97.5% CI, -∞ to 3.2]; P = .37). As a secondary outcome, mean hypercapnic ventilation was significantly decreased on day 4 with paroxetine alone vs placebo (32.4 vs 41.7 L/min; MD, -9.3 L/min [1-sided 97.5% CI, -∞ to -3.9]; P < .001), but not with quetiapine alone vs placebo (42.8 vs 41.7 L/min; MD, 1.1 L/min [1-sided 97.5% CI, -∞ to 6.4]; P = .67). No drug-related serious adverse events were reported. CONCLUSIONS AND RELEVANCE In this preliminary study involving healthy participants, paroxetine combined with oxycodone, compared with oxycodone alone, significantly decreased the ventilatory response to hypercapnia on days 1 and 5, whereas quetiapine combined with oxycodone did not cause such an effect. Additional investigation is needed to characterize the effects after longer-term treatment and to determine the clinical relevance of these findings. TRIAL REGISTRATION ClinicalTrials.gov Identifier: NCT04310579.
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Affiliation(s)
- Jeffry Florian
- Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland
| | | | - Victoria Gershuny
- Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland
| | - Michael C. Davis
- Division of Psychiatry, Office of Neuroscience, Office of New Drugs, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland
| | - Celine Wang
- Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland
| | - Xiaomei Han
- Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland
| | - Keith Burkhart
- Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland
| | - Kristin Prentice
- Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland
- Booz Allen Hamilton Inc, McLean, Virginia
| | - Aanchal Shah
- Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland
- Booz Allen Hamilton Inc, McLean, Virginia
| | - Rebecca Racz
- Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland
| | - Vikram Patel
- Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland
| | - Murali Matta
- Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland
| | - Omnia A. Ismaiel
- Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland
| | - James Weaver
- Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland
| | | | - Kevin Ford
- Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland
| | - Rodney Rouse
- Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland
| | - Marc Stone
- Division of Psychiatry, Office of Neuroscience, Office of New Drugs, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland
| | | | - Albert Dahan
- Department of Anesthesiology, Leiden University Medical Center, Leiden, the Netherlands
| | - David G. Strauss
- Division of Applied Regulatory Science, Office of Clinical Pharmacology, Office of Translational Sciences, Center for Drug Evaluation and Research, US Food and Drug Administration, Silver Spring, Maryland
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27
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Meyer D, Athota P, Gowen A, Nguyen NM, Schaal VL, Yelamanchili SV, Pendyala G. Effect of Combined Methamphetamine and Oxycodone Use on the Synaptic Proteome in an In Vitro Model of Polysubstance Use. Genes (Basel) 2022; 13:genes13101816. [PMID: 36292701 PMCID: PMC9601452 DOI: 10.3390/genes13101816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 10/04/2022] [Accepted: 10/06/2022] [Indexed: 01/03/2023] Open
Abstract
Polysubstance use (PSU) generally involves the simultaneous use of an opioid along with a stimulant. In recent years, this problem has escalated into a nationwide epidemic. Understanding the mechanisms and effects underlying the interaction between these drugs is essential for the development of treatments for those suffering from addiction. Currently, the effect of PSU on synapses-critical points of contact between neurons-remains poorly understood. Using an in vitro model of primary neurons, we examined the combined effects of the psychostimulant methamphetamine (METH) and the prescription opioid oxycodone (oxy) on the synaptic proteome using quantitative mass-spectrometry-based proteomics. A further ClueGO analysis and Ingenuity Pathway Analysis (IPA) indicated the dysregulation of several molecular functions, biological processes, and pathways associated with neural plasticity and structural development. We identified one key synaptic protein, Striatin-1, which plays a vital role in many of these processes and functions, to be downregulated following METH+oxy treatment. This downregulation of Striatin-1 was further validated by Western blot. Overall, the present study indicates several damaging effects of the combined use of METH and oxy on neural function and warrants further detailed investigation into mechanisms contributing to synaptic dysfunction.
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Affiliation(s)
- Daniel Meyer
- Department of Anesthesiology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Pranavi Athota
- Department of Anesthesiology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Austin Gowen
- Department of Anesthesiology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Nghi M. Nguyen
- Department of Anesthesiology, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Department of Genetics, Cell Biology, and Anatomy; University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Victoria L. Schaal
- Department of Anesthesiology, University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Sowmya V. Yelamanchili
- Department of Anesthesiology, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Department of Genetics, Cell Biology, and Anatomy; University of Nebraska Medical Center, Omaha, NE 68198, USA
| | - Gurudutt Pendyala
- Department of Anesthesiology, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Department of Genetics, Cell Biology, and Anatomy; University of Nebraska Medical Center, Omaha, NE 68198, USA
- National Strategic Research Institute, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Child Health Research Institute, University of Nebraska Medical Center, Omaha, NE 68198, USA
- Correspondence: ; Tel.: +1-402-559-8690
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Amico KN, Arnold ME, Dourron MS, Solomon MG, Schank JR. The effect of concurrent access to alcohol and oxycodone on self-administration and reinstatement in rats. Psychopharmacology (Berl) 2022; 239:3277-3286. [PMID: 35972517 DOI: 10.1007/s00213-022-06210-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 08/01/2022] [Indexed: 11/26/2022]
Abstract
RATIONALE Although polysubstance use is highly prevalent, preclinical studies that assess voluntary consumption of multiple substances at the same time are rather uncommon. Overlooking drug taking patterns commonly observed in humans may limit the translational value of preclinical models. OBJECTIVES Here, we aimed to develop a model of polysubstance use that could be used to assess oral operant self-administration patterns under concurrent access to alcohol and the prescription opioid oxycodone. METHODS After a training period where animals associated specific cues and levers with each drug, rats self-administered alcohol and oxycodone solutions concurrently in daily sessions. Oxycodone was then removed to assess potential changes in alcohol consumption. The role of cues and stress on alcohol consumption and oxycodone seeking was also examined under reinstatement conditions. RESULTS We found that females consumed more alcohol and oxycodone than males when given access to both drugs, and this effect on alcohol intake persisted when oxycodone was removed. Additionally, re-exposure to oxycodone cues in combination with the administration of the pharmacological stressor yohimbine drove reinstatement of oxycodone seeking in females but did not have a strong effect in males, possibly due to low levels of oxycodone intake during active self-administration in male rats. Additionally, yohimbine drove increased alcohol consumption, in line with prior findings from our group and others. CONCLUSIONS Taken together, this study demonstrates that rats will concurrently self-administer both oxycodone and alcohol in operant chambers, and this procedure can serve as a platform for future investigations in polysubstance use and relapse-like behavior.
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Affiliation(s)
- Kristen N Amico
- Department of Physiology and Pharmacology, College of Veterinary Medicine, University of Georgia, 501 DW Brooks Drive, Athens, GA, 30602, USA
| | - Miranda E Arnold
- Department of Physiology and Pharmacology, College of Veterinary Medicine, University of Georgia, 501 DW Brooks Drive, Athens, GA, 30602, USA
| | - Morgan S Dourron
- Department of Physiology and Pharmacology, College of Veterinary Medicine, University of Georgia, 501 DW Brooks Drive, Athens, GA, 30602, USA
| | - Matthew G Solomon
- Department of Physiology and Pharmacology, College of Veterinary Medicine, University of Georgia, 501 DW Brooks Drive, Athens, GA, 30602, USA
| | - Jesse R Schank
- Department of Physiology and Pharmacology, College of Veterinary Medicine, University of Georgia, 501 DW Brooks Drive, Athens, GA, 30602, USA.
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Smith CJ, Lintz T, Clark MJ, Malacon KE, Abiad A, Constantino NJ, Kim VJ, Jo YC, Alonso-Caraballo Y, Bilbo SD, Chartoff EH. Prenatal opioid exposure inhibits microglial sculpting of the dopamine system selectively in adolescent male offspring. Neuropsychopharmacology 2022; 47:1755-1763. [PMID: 35835992 PMCID: PMC9372181 DOI: 10.1038/s41386-022-01376-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 06/22/2022] [Accepted: 06/25/2022] [Indexed: 02/08/2023]
Abstract
The current opioid epidemic has dramatically increased the number of children who are prenatally exposed to opioids, including oxycodone. A number of social and cognitive abnormalities have been documented in these children as they reach young adulthood. However, little is known about the mechanisms underlying developmental effects of prenatal opioid exposure. Microglia, the resident immune cells of the brain, respond to acute opioid exposure in adulthood. Moreover, microglia are known to sculpt neural circuits during typical development. Indeed, we recently found that microglial phagocytosis of dopamine D1 receptors (D1R) in the nucleus accumbens (NAc) is required for the natural developmental decline in NAc-D1R that occurs between adolescence and adulthood in rats. This microglial pruning occurs only in males, and is required for the normal developmental trajectory of social play behavior. However, virtually nothing is known as to whether this developmental program is altered by prenatal exposure to opioids. Here, we show in rats that maternal oxycodone self-administration during pregnancy leads to reduced adolescent microglial phagocytosis of D1R and subsequently higher D1R density within the NAc in adult male, but not female, offspring. Finally, we show prenatal and adult behavioral deficits in opioid-exposed offspring, including impaired extinction of oxycodone-conditioned place preference in males. This work demonstrates for the first time that microglia play a key role in translating prenatal opioid exposure to changes in neural systems and behavior.
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Affiliation(s)
- Caroline J Smith
- Department of Psychology and Neuroscience, Duke University, Durham, NC, USA.
| | - Tania Lintz
- Department of Psychiatry, Harvard Medical School and Basic Neuroscience Division, Mclean Hospital, Belmont, MA, USA
| | - Madeline J Clark
- Department of Psychology and Neuroscience, Duke University, Durham, NC, USA
| | - Karen E Malacon
- Department of Psychology and Neuroscience, Duke University, Durham, NC, USA
| | - Alia Abiad
- Department of Psychiatry, Harvard Medical School and Basic Neuroscience Division, Mclean Hospital, Belmont, MA, USA
| | - Nicholas J Constantino
- Department of Psychiatry, Harvard Medical School and Basic Neuroscience Division, Mclean Hospital, Belmont, MA, USA
| | - Veronica J Kim
- Department of Psychology and Neuroscience, Duke University, Durham, NC, USA
| | - Young C Jo
- Department of Psychology and Neuroscience, Duke University, Durham, NC, USA
| | - Yanaira Alonso-Caraballo
- Department of Psychiatry, Harvard Medical School and Basic Neuroscience Division, Mclean Hospital, Belmont, MA, USA
| | - Staci D Bilbo
- Department of Psychology and Neuroscience, Duke University, Durham, NC, USA
| | - Elena H Chartoff
- Department of Psychiatry, Harvard Medical School and Basic Neuroscience Division, Mclean Hospital, Belmont, MA, USA
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30
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Bruijnzeel AW, Behnood-Rod A, Malphurs W, Chellian R, Caudle RM, Febo M, Setlow B, Neubert JK. Oxycodone decreases anxiety-like behavior in the elevated plus-maze test in male and female rats. Behav Pharmacol 2022; 33:418-426. [PMID: 35947068 PMCID: PMC9373716 DOI: 10.1097/fbp.0000000000000690] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
The prescription opioid oxycodone is widely used for the treatment of pain in humans. Oxycodone misuse is more common among people with an anxiety disorder than those without one. Therefore, oxycodone might be misused for its anxiolytic properties. We investigated if oxycodone affects anxiety-like behavior in adult male and female rats. The rats were treated with oxycodone (0.178, 0.32, 0.56, or 1 mg/kg), and anxiety-like behavior was investigated in the elevated plus-maze test. Immediately after the elevated plus-maze test, a small open field test was conducted to determine the effects of oxycodone on locomotor activity. In the elevated plus-maze test, oxycodone increased the percentage of time spent on the open arms, the percentage of open arm entries, time on the open arms, open arm entries, and the distance traveled. The males treated with vehicle had a lower percentage of open arm entries than the females treated with vehicle, and oxycodone treatment led to a greater increase in the percentage of open arm entries in the males than females. Furthermore, the females spent more time on the open arms, made more open arm entries, spent less time in the closed arms, and traveled a greater distance than the males. In the small open field test, treatment with oxycodone did not affect locomotor activity or rearing. Sex differences were observed; the females traveled a greater distance and displayed more rearing than the males. In conclusion, oxycodone decreases anxiety-like behavior in rats, and oxycodone has a greater anxiolytic-like effect in males than females.
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Affiliation(s)
- Adriaan W Bruijnzeel
- Department of Psychiatry, University of Florida
- Center for Addiction Research and Education, University of Florida
| | | | | | | | - Robert M Caudle
- Oral and Maxillofacial Surgery, University of Florida, Gainesville, Florida, USA
| | - Marcelo Febo
- Department of Psychiatry, University of Florida
- Center for Addiction Research and Education, University of Florida
| | - Barry Setlow
- Department of Psychiatry, University of Florida
- Center for Addiction Research and Education, University of Florida
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31
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Adhikary S, Koita O, Lebowitz JJ, Birdsong WT, Williams JT. Agonist-Specific Regulation of G Protein-Coupled Receptors after Chronic Opioid Treatment. Mol Pharmacol 2022; 101:300-308. [PMID: 35193934 PMCID: PMC9092468 DOI: 10.1124/molpharm.121.000453] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2021] [Accepted: 02/16/2022] [Indexed: 01/21/2023] Open
Abstract
Chronic treatment of animals with morphine results in a long lasting cellular tolerance in the locus coeruleus and alters the kinase dependent desensitization of opioid and nonopioid G protein-coupled receptors (GPCRs). This study examined the development of tolerance and altered regulation of kinase activity after chronic treatment of animals with clinically relevant opioids that differ in efficacy at the µ-opioid receptors (MOR). In slices from oxycodone treated animals, no tolerance to opioids was observed when measuring the MOR induced increase in potassium conductance, but the G protein receptor kinase 2/3 blocker, compound 101, no longer inhibited desensitization of somatostatin (SST) receptors. Chronic fentanyl treatment induced a rightward shift in the concentration response to [Met5]enkephalin, but there was no change in the kinase regulation of desensitization of the SST receptor. When total phosphorylation deficient MORs that block desensitization, internalization, and tolerance were virally expressed, chronic treatment with fentanyl resulted in the altered kinase regulation of SST receptors. The results suggest that sustained opioid receptor signaling initiates the process that results in altered kinase regulation of not only opioid receptors, but also other GPCRs. This study highlights two very distinct downstream adaptive processes that are specifically regulated by an agonist dependent mechanism. SIGNIFICANCE STATEMENT: Persistent signaling of MORs results in altered kinase regulation of nonopioid GPCRs after chronic treatment with morphine and oxycodone. Profound tolerance develops after chronic treatment with fentanyl without affecting kinase regulation. The homeostatic change in the kinase regulation of nonopioid GPCRs could account for the systems level in vivo development of tolerance that is seen with opioid agonists, such as morphine and oxycodone, that develop more rapidly than the tolerance induced by efficacious agonists, such as fentanyl and etorphine.
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Affiliation(s)
- Sweta Adhikary
- Vollum Institute, Oregon Health and Science University, Portland, Oregon (S.A., O.K., J.J.L., J.T.W.) and Department of Pharmacology, University of Michigan, Ann Arbor, Michigan (W.T.B.)
| | - Omar Koita
- Vollum Institute, Oregon Health and Science University, Portland, Oregon (S.A., O.K., J.J.L., J.T.W.) and Department of Pharmacology, University of Michigan, Ann Arbor, Michigan (W.T.B.)
| | - Joseph J Lebowitz
- Vollum Institute, Oregon Health and Science University, Portland, Oregon (S.A., O.K., J.J.L., J.T.W.) and Department of Pharmacology, University of Michigan, Ann Arbor, Michigan (W.T.B.)
| | - William T Birdsong
- Vollum Institute, Oregon Health and Science University, Portland, Oregon (S.A., O.K., J.J.L., J.T.W.) and Department of Pharmacology, University of Michigan, Ann Arbor, Michigan (W.T.B.)
| | - John T Williams
- Vollum Institute, Oregon Health and Science University, Portland, Oregon (S.A., O.K., J.J.L., J.T.W.) and Department of Pharmacology, University of Michigan, Ann Arbor, Michigan (W.T.B.)
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Ji M, Cheng J, Zhang D. Oxycodone protects cardiac microvascular endothelial cells against ischemia/reperfusion injury by binding to Sigma-1 Receptor. Bioengineered 2022; 13:9628-9644. [PMID: 35412431 PMCID: PMC9161947 DOI: 10.1080/21655979.2022.2057632] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Revised: 03/16/2022] [Accepted: 03/18/2022] [Indexed: 01/14/2023] Open
Abstract
Endothelial dysfunction is an important mechanism involved in myocardial ischemia-reperfusion (I/R) injury. We aimed to explore the effects of Oxycodone on myocardial I/R injury in vivo and in vitro to reveal its mechanisms related to Sigma-1 Receptor (SIGMAR1). A rat model of I/R-induced myocardial injury was developed. The ischemic area and myocardial histopathological changes after oxycodone addition were evaluated by TTC staining and H&E staining. LDH, CK-MB and cTnI levels were used to assess myocardial function. Then, the endothelial integrity was reflected by the expressions of ZO-1, Claudin-1 and Occludin. Afterward, ELISA, RT-qPCR, western blot and immunofluorescence assays were adopted for the detection of inflammation-related genes. SIGMAR1 expression in myocardial tissues induced by I/R and cardiac microvascular endothelial cells (CMECs) under hypoxic/reoxygenation (H/R) was determined using RT-qPCR and western blotting. Subsequently, after SIGMAR1 silencing or BD1047 addition (a SIGMAR1 antagonist), cell apoptosis and endothelial integrity were analyzed in the presence of Oxycodone in H/R-stimulated CMECs. Results indicated that Oxycodone decreased the ischemic area and improved myocardial function in myocardial I/R injury rat. Oxycodone improved myocardial histopathological injury and elevated endothelial integrity, evidenced by upregulated ZO-1, Claudin-1 and Occludin expressions. Moreover, inflammatory response was alleviated after Oxycodone administration. Molecular docking suggested that SIGMAR1 could directly bind to Oxycodone. Oxycodone elevated SIGMAR1 expression and SIGMAR1 deletion or BD1047 addition attenuated the impacts of Oxycodone on apoptosis and endothelial integrity of CMECs induced by H/R. Collectively, Oxycodone alleviates myocardial I/R injury in vivo and in vitro by binding to SIGMAR1.
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Affiliation(s)
- Meihua Ji
- Department of Anesthesiology, Henan Provincial People’s Hospital, Zhengzhou, Henan, China
- Department of Anesthesiology of Central China Fuwai Hospital, Central China Fuwai Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Jing Cheng
- Department of Anesthesiology, Henan Provincial People’s Hospital, Zhengzhou, Henan, China
- Department of Anesthesiology of Central China Fuwai Hospital, Central China Fuwai Hospital of Zhengzhou University, Zhengzhou, Henan, China
| | - Daimin Zhang
- Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, Nanjing, Jiangsu, China
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33
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Arguelles N, Richards J, El-Sherbeni AA, Miksys S, Tyndale RF. Sex, estrous cycle, and hormone regulation of CYP2D in the brain alters oxycodone metabolism and analgesia. Biochem Pharmacol 2022; 198:114949. [PMID: 35143755 PMCID: PMC9215033 DOI: 10.1016/j.bcp.2022.114949] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/01/2022] [Accepted: 02/03/2022] [Indexed: 11/19/2022]
Abstract
Opioids, and numerous centrally active drugs, are metabolized by cytochrome P450 2D (CYP2D). There are sex and estrous cycle differences in brain oxycodone analgesia. Here we investigated the mechanism examining the selective role of CYP2D in the brain on sex, estrous cycle, and hormonal regulation. Propranolol, CYP2D-specific mechanism-based inhibitor, or vehicle was delivered into cerebral ventricles 24 hours before administering oxycodone (or oxymorphone, negative control) orally to male and female (in estrus and diestrus) rats. Ovariectomized and sham-operated females received no treatment, estradiol, progesterone or vehicle. Analgesia was measured using tail-flick latency, and brain drug and metabolite concentrations were measured by microdialysis. Data were analyzed by two-way or mixed ANOVA. Following propranolol (versus vehicle) inhibition and oral oxycodone, there were greater increases in brain oxycodone concentrations and analgesia, and greater decreases in brain oxymorphone/oxycodone ratios (an in vivo phenotype of CYP2D in brain) in males and females in estrus, compared to females in diestrus; with no impact on plasma drug concentrations. There was no impact of propranolol pre-treatment, sex, or cycle after oral oxymorphone (non-CYP2D substrate) on brain oxymorphone concentrations or analgesia. There was no impact of propranolol pre-treatment following ovariectomy on brain oxycodone concentrations or analgesia, which was restored in ovariectomized females following estradiol, but not progesterone, treatment. Sex, cycle, and estradiol regulation of CYP2D in brain in turn altered brain oxycodone concentration and response, which may contribute to the large inter-individual variation in response to the numerous centrally acting CYP2D substrate drugs, including opioids.
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Affiliation(s)
- Nicole Arguelles
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
| | - Janielle Richards
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada
| | - Ahmed A El-Sherbeni
- Department of Clinical Pharmacy, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Sharon Miksys
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada; Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health (CAMH), Canada
| | - Rachel F Tyndale
- Department of Pharmacology and Toxicology, University of Toronto, Toronto, Ontario, Canada; Campbell Family Mental Health Research Institute, Centre for Addiction and Mental Health (CAMH), Canada; Department of Psychiatry, University of Toronto, Toronto, Ontario, Canada.
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Manandhar P, Connor M, Santiago M. Tapentadol shows lower intrinsic efficacy at µ receptor than morphine and oxycodone. Pharmacol Res Perspect 2022; 10:e00921. [PMID: 35084120 PMCID: PMC8929351 DOI: 10.1002/prp2.921] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2021] [Revised: 12/23/2021] [Accepted: 12/27/2021] [Indexed: 12/12/2022] Open
Abstract
Tapentadol is a centrally acting analgesic with a dual mechanism of action. It acts as an agonist at the µ receptor and inhibitor of noradrenaline reuptake. Clinical trials suggest similar analgesic efficacy of tapentadol, oxycodone, and morphine in acute and chronic pain. Given the limited information about the molecular actions of tapentadol at the µ receptor, we investigated the intrinsic efficacy of tapentadol and compared it with other opioids. β-chlornaltrexamine (β-CNA, 100 nM, 20 min) was used to deplete spare receptors in AtT20 cells stably transfected with human µ receptor wild-type (WT). Opioid-mediated changes in membrane potential were measured in real-time using a membrane potential-sensitive fluorescent dye. Using Black and Leff's operational model, intrinsic efficacy relative to DAMGO was calculated for each opioid. Tapentadol (0.05 ± 0.01) activated the GIRK channel with lesser intrinsic efficacy than morphine (0.17 ± 0.02) and oxycodone (0.16 ± 0.02). We further assessed the signaling of tapentadol in the common µ receptor variants (N40D and A6V) which are associated with altered receptor signaling. We found no difference in the response of tapentadol between these receptor variants.
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Affiliation(s)
- Preeti Manandhar
- Macquarie Medical SchoolMacquarie UniversitySydneyNew South WalesAustralia
| | - Mark Connor
- Macquarie Medical SchoolMacquarie UniversitySydneyNew South WalesAustralia
| | - Marina Santiago
- Macquarie Medical SchoolMacquarie UniversitySydneyNew South WalesAustralia
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35
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Iyer V, Woodward TJ, Pacheco R, Hohmann AG. A limited access oral oxycodone paradigm produces physical dependence and mesocorticolimbic region-dependent increases in DeltaFosB expression without preference. Neuropharmacology 2021; 205:108925. [PMID: 34921830 DOI: 10.1016/j.neuropharm.2021.108925] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2021] [Revised: 12/02/2021] [Accepted: 12/11/2021] [Indexed: 01/07/2023]
Abstract
The abuse of oral formulations of prescription opioids has precipitated the current opioid epidemic. We developed an oral oxycodone consumption model consisting of a limited access (4 h) two-bottle choice drinking in the dark (TBC-DID) paradigm and quantified dependence with naloxone challenge using mice of both sexes. We also assessed neurobiological correlates of withdrawal and dependence elicited via oral oxycodone consumption using immunohistochemistry for DeltaFosB (ΔFosB), a transcription factor described as a molecular marker for drug addiction. Neither sex developed a preference for the oxycodone bottle, irrespective of oxycodone concentration, bottle position or prior water restriction. Mice that volitionally consumed oxycodone exhibited hyperlocomotion in an open field test and supraspinal but not spinally-mediated antinociception. Both sexes also developed robust, dose-dependent levels of opioid withdrawal that was precipitated by the opioid antagonist naloxone. Oral oxycodone consumption followed by naloxone challenge led to mesocorticolimbic region-dependent increases in the number of ΔFosB expressing cells. Naloxone-precipitated withdrawal jumps, but not the oxycodone bottle % preference, was positively correlated with the number of ΔFosB expressing cells specifically in the nucleus accumbens shell. Thus, limited access oral consumption of oxycodone produced physical dependence and increased ΔFosB expression despite the absence of opioid preference. Our TBC-DID paradigm allows for the study of oral opioid consumption in a simple, high-throughput manner and elucidates the underlying neurobiological substrates that accompany opioid-induced physical dependence.
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Affiliation(s)
- Vishakh Iyer
- Program in Neuroscience, Indiana University, Bloomington, IN, USA; Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN, USA
| | - Taylor J Woodward
- Program in Neuroscience, Indiana University, Bloomington, IN, USA; Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN, USA
| | - Romario Pacheco
- Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN, USA
| | - Andrea G Hohmann
- Program in Neuroscience, Indiana University, Bloomington, IN, USA; Department of Psychological and Brain Sciences, Indiana University, Bloomington, IN, USA; Gill Center for Biomolecular Science, Indiana University, Bloomington, IN, USA.
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Zamarripa CA, Pareek T, Schrock HM, Prisinzano TE, Blough BE, Sufka KJ, Freeman KB. The kappa-opioid receptor agonist, triazole 1.1, reduces oxycodone self-administration and enhances oxycodone-induced thermal antinociception in male rats. Psychopharmacology (Berl) 2021; 238:3463-3476. [PMID: 34430992 PMCID: PMC8629928 DOI: 10.1007/s00213-021-05965-x] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Accepted: 08/10/2021] [Indexed: 12/29/2022]
Abstract
RATIONALE Triazole 1.1 is a novel kappa-opioid receptor (KOR) agonist reported to produce antinociception without KOR-typical adverse effects. When combined with the mu-opioid receptor (MOR) agonist, oxycodone, triazole 1.1 blocks oxycodone-induced pruritis without producing sedation-like effects in nonhuman primates. However, it is unknown if triazole 1.1 can reduce the abuse-related effects or enhance the antinociceptive effects of oxycodone similarly to other KOR agonists. OBJECTIVES The aim of the present study was to quantitatively compare the behavioral effects of triazole 1.1 to the KOR agonists, U50,488h and nalfurafine, on oxycodone self-administration and oxycodone-induced thermal antinociception when administered as mixtures with oxycodone. METHODS In the self-administration study, male Sprague-Dawley (SD) rats (n = 6) self-administered intravenous (i.v.) oxycodone alone (0.056 mg/kg/inj) or combined with U50,488 h (0.032-0.32 mg/kg/inj), nalfurafine (0.00032-0.0032 mg/kg/inj), or triazole 1.1 (0.32-1.8 mg/kg/inj) under a progressive-ratio schedule of reinforcement. In a hot plate assay, male SD rats (n = 6) received i.v. injections of oxycodone (1.0-5.6 mg/kg), U50,488h (1.0-18.0 mg/kg), nalfurafine (0.01-1.0 mg/kg), or triazole 1.1 (3.2-32.0 mg/kg) alone or in combinations of fixed proportion with oxycodone based on the relative potencies of the single drugs. Each study concluded with administration of the KOR antagonist nor-BNI and some degree of retesting of the previous conditions to verify that the behavioral effects were mediated by KOR activation. RESULTS All KOR agonists reduced oxycodone self-administration in a dose-dependent manner. Moreover, all single drugs and drug combinations produced dose-dependent, fully efficacious thermal antinociception. All KOR agonist:oxycodone combinations produced either additive or super-additive thermal antinociception. Finally, each KOR agonist was blocked in effect by nor-BNI in both behavioral measures. CONCLUSION This study demonstrates that triazole 1.1 reduces oxycodone's reinforcing effects and enhances oxycodone-induced antinociception to degrees that are comparable to typical KOR agonists. Given triazole 1.1's mild adverse-effect profile, developing MOR-KOR agonist combinations from the triazole 1.1 series may render new pain therapeutics with reduced abuse liability.
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Affiliation(s)
- C Austin Zamarripa
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, 2500 N. State Street, Jackson, MS, 39216, USA
| | - Tanya Pareek
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, 2500 N. State Street, Jackson, MS, 39216, USA
| | - Hayley M Schrock
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, 2500 N. State Street, Jackson, MS, 39216, USA
| | | | | | - Kenneth J Sufka
- Department of Psychology, University of Mississippi, Oxford, MS, USA
| | - Kevin B Freeman
- Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, 2500 N. State Street, Jackson, MS, 39216, USA.
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Zhao S, Cheng WJ, Liu X, Li Z, Li HZ, Shi N, Wang XL. Effects of Dexmedetomidine and Oxycodone on Neurocognitive and Inflammatory Response After Tourniquet-Induced Ischemia-Reperfusion Injury. Neurochem Res 2021; 47:461-469. [PMID: 34625874 DOI: 10.1007/s11064-021-03461-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Revised: 09/13/2021] [Accepted: 09/29/2021] [Indexed: 11/27/2022]
Abstract
To evaluate the effects of dexmedetomidine (Dex) and oxycodone (Oxy) on neurocognitive and inflammatory response after tourniquet-induced ischemia-reperfusion (I/R) injury. C57/BL6 mice were used to construct the mouse model of tourniquet-induced I/R injury. Mice (n = 48) were randomly divided into sham, I/R, Dex or Oxy group. Morris water maze test was performed to assess the spatial learning and memory function. The expression of NF-κB, TLR4, NR2B, M1 (CD68 and TNF-α) and M2 (CD206 and IL-10) polarization markers in mice hippocampus were detected by western blot or immunofluorescent staining. Spontaneous excitatory post-synaptic currents (sEPSCs) were recorded by electrophysiology. Dex treatment alleviated I/R-induced declines in learning and memory (p < 0.05), while Oxy had no significant effect on it. Compared with I/R group, Dex and Oxy treatment down-regulated the expression of NF-κB, TLR4, TNF-α and CD68 (all p < 0.05), while no significantly different was found in CD206 and IL-10. In addition, Dex treatment down-regulated the expression of NR2B and reduced the frequency and amplitude of sEPSCs in I/R model mice (all p < 0.05), while Oxy had no significant effect on them. Tourniquet-induced I/R could impair the neurocognitive function of mice. Dex treatment could alleviate I/R-induced neurocognitive disorder by inhibiting abnormal synaptic transmission in hippocampal neurons. Both Dex and Oxy could alleviate the inflammatory response likely by inhibiting the polarization of microglia toward M1 phenotype via TLR4/NF-κB pathway. Future studies are needed to further examine the effects of Dex on neurocognitive disorder after tourniquet-induced I/R injury and investigate the exact mechanism.
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Affiliation(s)
- Shuang Zhao
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, No.139, Ziqiang Road, Qiaoxi District, Shijiazhuang, 050051, Hebei, China
| | - Wen-Jie Cheng
- Department of Anesthesiology, Tianjin Hospital, Tianjin, China
| | - Xin Liu
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, No.139, Ziqiang Road, Qiaoxi District, Shijiazhuang, 050051, Hebei, China
| | - Zhao Li
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, No.139, Ziqiang Road, Qiaoxi District, Shijiazhuang, 050051, Hebei, China
| | - Hui-Zhou Li
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, No.139, Ziqiang Road, Qiaoxi District, Shijiazhuang, 050051, Hebei, China
| | - Na Shi
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, No.139, Ziqiang Road, Qiaoxi District, Shijiazhuang, 050051, Hebei, China
| | - Xiu-Li Wang
- Department of Anesthesiology, The Third Hospital of Hebei Medical University, No.139, Ziqiang Road, Qiaoxi District, Shijiazhuang, 050051, Hebei, China.
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Carper M, Contreras KM, Walentiny DM, Beardsley PM, Damaj MI. Validation and characterization of oxycodone physical dependence in C57BL/6J mice. Eur J Pharmacol 2021; 903:174111. [PMID: 33901461 DOI: 10.1016/j.ejphar.2021.174111] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Revised: 04/07/2021] [Accepted: 04/19/2021] [Indexed: 10/21/2022]
Abstract
Opioid use disorder is a growing concern in the United States. Mice were used to investigate the mechanisms involving opioid physical dependence and for evaluating medications for treating opioid use disorders. While there are many preclinical reports describing protocols for inducing physical dependence upon morphine, there are fewer preclinical reports describing more contemporary abused prescription opiates. The goal of this study was to characterize and validate a mouse model of oxycodone dependence. Male C57BL/6J mice were injected with saline or increasing doses of oxycodone (9-33 mg/kg) twice daily for 8 days. On the 9th day, mice were challenged with 1 mg/kg naloxone and observed for somatic signs. Mice were pretreated with oxycodone (17, 33, or 75 mg/kg) prior to withdrawal to determine if it could attenuate somatic withdrawal signs. Additional mouse groups were pretreated with 1 mg/kg clonidine. Lastly, we measured somatic signs for 6, 24, and 48 h post-withdrawal during spontaneous and precipitated withdrawal. Pretreating with oxycodone or clonidine dose-dependently prevented the emergence of withdrawal signs. Mice chronically treated with oxycodone exhibited more withdrawal signs than vehicle at 24 h after the final injection during spontaneous withdrawal. In contrast, mice that received repeated naloxone challenges showed peak withdrawal signs at 6 h, and withdrawal signs were significantly greater at all time points compared to vehicle. Reversal of withdrawal effects by positive controls, and establishing spontaneous and precipitated withdrawal paradigms, serve as validation of this model and provide a means to examine novel therapeutics to treat opioid withdrawal.
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Affiliation(s)
- Moriah Carper
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, Richmond, VA, 23298, USA
| | - Katherine M Contreras
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, Richmond, VA, 23298, USA
| | - D Matthew Walentiny
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, Richmond, VA, 23298, USA
| | - Patrick M Beardsley
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, Richmond, VA, 23298, USA; Center for Biomarker Research and Precision Medicine, USA
| | - M Imad Damaj
- Department of Pharmacology and Toxicology, Virginia Commonwealth University, Richmond, VA, 23298, USA; Translational Research Initiative for Pain and Neuropathy at VCU, USA.
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Guda RS, Odegaard KE, Tan C, Schaal VL, Yelamanchili SV, Pendyala G. Integrated Systems Analysis of Mixed Neuroglial Cultures Proteome Post Oxycodone Exposure. Int J Mol Sci 2021; 22:6421. [PMID: 34203972 PMCID: PMC8232620 DOI: 10.3390/ijms22126421] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Revised: 06/06/2021] [Accepted: 06/10/2021] [Indexed: 12/03/2022] Open
Abstract
Opioid abuse has become a major public health crisis that affects millions of individuals across the globe. This widespread abuse of prescription opioids and dramatic increase in the availability of illicit opioids have created what is known as the opioid epidemic. Pregnant women are a particularly vulnerable group since they are prescribed for opioids such as morphine, buprenorphine, and methadone, all of which have been shown to cross the placenta and potentially impact the developing fetus. Limited information exists regarding the effect of oxycodone (oxy) on synaptic alterations. To fill this knowledge gap, we employed an integrated system approach to identify proteomic signatures and pathways impacted on mixed neuroglial cultures treated with oxy for 24 h. Differentially expressed proteins were mapped onto global canonical pathways using ingenuity pathway analysis (IPA), identifying enriched pathways associated with ephrin signaling, semaphorin signaling, synaptic long-term depression, endocannabinoid signaling, and opioid signaling. Further analysis by ClueGO identified that the dominant category of differentially expressed protein functions was associated with GDP binding. Since opioid receptors are G-protein coupled receptors (GPCRs), these data indicate that oxy exposure perturbs key pathways associated with synaptic function.
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Affiliation(s)
- Rahul S. Guda
- Department of Anesthesiology, University of Nebraska Medical Center, Omaha, NE 68198, USA; (R.S.G.); (K.E.O.); (C.T.); (V.L.S.); (S.V.Y.)
| | - Katherine E. Odegaard
- Department of Anesthesiology, University of Nebraska Medical Center, Omaha, NE 68198, USA; (R.S.G.); (K.E.O.); (C.T.); (V.L.S.); (S.V.Y.)
| | - Chengxi Tan
- Department of Anesthesiology, University of Nebraska Medical Center, Omaha, NE 68198, USA; (R.S.G.); (K.E.O.); (C.T.); (V.L.S.); (S.V.Y.)
| | - Victoria L. Schaal
- Department of Anesthesiology, University of Nebraska Medical Center, Omaha, NE 68198, USA; (R.S.G.); (K.E.O.); (C.T.); (V.L.S.); (S.V.Y.)
| | - Sowmya V. Yelamanchili
- Department of Anesthesiology, University of Nebraska Medical Center, Omaha, NE 68198, USA; (R.S.G.); (K.E.O.); (C.T.); (V.L.S.); (S.V.Y.)
| | - Gurudutt Pendyala
- Department of Anesthesiology, University of Nebraska Medical Center, Omaha, NE 68198, USA; (R.S.G.); (K.E.O.); (C.T.); (V.L.S.); (S.V.Y.)
- Child Health Research Institute, Omaha, NE 68198, USA
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Mark EB, Frøkjær JB, Hansen TM, Nedergaard RB, Drewes AM. Although tapentadol and oxycodone both increase colonic volume, tapentadol treatment resulted in softer stools and less constipation: a mechanistic study in healthy volunteers. Scand J Pain 2021; 21:406-414. [PMID: 33606931 DOI: 10.1515/sjpain-2020-0151] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2020] [Accepted: 12/01/2020] [Indexed: 02/07/2023]
Abstract
OBJECTIVES Opioids are often used in treatment of severe pain, although many patients experience gastrointestinal side-effects like constipation. The aim of the current study was to investigate changes in colonic volume, as the result of both colonic motility and fluid transport, in healthy volunteers during opioid treatment with tapentadol as compared with oxycodone and placebo. METHODS In a randomized, double-blind, cross-over study, 21 healthy male volunteers were administered equianalgesic dosages of oral tapentadol (50 mg bid), oxycodone (10 mg bid) or corresponding placebo for 14 days. Segmental colonic volumes were quantified using T2-weighted magnetic resonance images, and gastrointestinal side-effects were assessed with questionnaires. RESULTS Total colonic volume increase during treatment was higher during tapentadol and oxycodone treatment (median 48 and 58 mL) compared to placebo (median -14 mL, both p≤0.003). Tapentadol (and placebo) treatment resulted in more bowel movements (both p<0.05) and softer stool consistency as compared with oxycodone (both p<0.01). Only oxycodone treatment was associated with increased constipation, straining during defecation, and tiredness (all p≤0.01). The colonic volume increase during treatment was directly associated with softer stools during tapentadol treatment (p=0.019). CONCLUSIONS Tapentadol treatment increased colonic volume without leading to harder stools, likely as the opioid sparing effects result in less water absorption from the gut lumen. Oxycodone treatment also increased colonic volume, but with a simultaneous increase in stool dryness and gastrointestinal and central nervous system side-effects. The results confirm that tapentadol treatment may be advantageous to oxycodone regarding tolerability to pain treatment.
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Affiliation(s)
- Esben Bolvig Mark
- Department of Gastroenterology and Hepatology, Mech-Sense, Aalborg University Hospital, Aalborg, Denmark
- Department of Radiology, Mech-Sense, Aalborg University Hospital, Aalborg, Denmark
| | - Jens Brøndum Frøkjær
- Department of Radiology, Mech-Sense, Aalborg University Hospital, Aalborg, Denmark
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Tine Maria Hansen
- Department of Radiology, Mech-Sense, Aalborg University Hospital, Aalborg, Denmark
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Rasmus Bach Nedergaard
- Department of Gastroenterology and Hepatology, Mech-Sense, Aalborg University Hospital, Aalborg, Denmark
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
| | - Asbjørn Mohr Drewes
- Department of Gastroenterology and Hepatology, Mech-Sense, Aalborg University Hospital, Aalborg, Denmark
- Department of Clinical Medicine, Aalborg University, Aalborg, Denmark
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Wang X, Liu Y, Zhang H, Jin J, Ma Y, Leng Y. Sinomenine alleviates dorsal root ganglia inflammation to inhibit neuropathic pain via the p38 MAPK/CREB signalling pathway. Eur J Pharmacol 2021; 897:173945. [PMID: 33596416 DOI: 10.1016/j.ejphar.2021.173945] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 02/01/2021] [Accepted: 02/06/2021] [Indexed: 12/15/2022]
Abstract
The objective of study was to investigate the inhibitory effect of sinomenine on neuropathic pain on dorsal root ganglia (DRG). The DRG cell line and spinal nerve ligation (SNL) model were used in this study. The effect of sinomenine on the cell viability was examined by MTT assay. The expression of p38 MAPK, NF-κB, c-fos, SP and TNF-α was detected by using immunofluorescence and immunohistochemistry assay. We also assessed the level of p-CaMKII, COX-2, p-CREB, IL-17A, TLR4 and IL-1β via western blotting and RT-qPCR. Compared to the controls, sinomenine showed a protective effect on TNF-α-induced apoptosis on DRG cells in a dose-dependent manner, with an increase of cell viability and a decrease of reactive oxygen species level as well as LDH release. Parallelly, sinomenine treatment significantly reduced the expression of various factors related to stress and inflammation, including p38 MAPK, NF-κB, c-fos, p-CAMKII, COX-2, p-CREB, TLR4 and IL-17A in DRG cells in vitro. Furthermore, we found that administration of sinomenine significantly reduced mechanical withdrawal threshold and thermal withdrawal latency and inhibited the inflammation and activation of p38 signaling in SNL rats. It is noting that combined therapy of sinomenine and pulsed radiofrequency exhibited higher efficacy of dorsal root ganglia inflammation than single treatment as well as the combination of oxycodone and pulsed radiofrequency. Sinomenine inhibited the apoptosis of DRG cell by regulating p38 MAPK/CREB signalling pathway, which provides evidence to alleviate neuropathic pain in clinic.
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Affiliation(s)
- Xiaoqing Wang
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China; Department of Anesthesiology, The First Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Yatao Liu
- Department of Anesthesiology, The First Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Hong Zhang
- Department of Anesthesiology, The First Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Jianping Jin
- Department of Anesthesiology, The First Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Yuqing Ma
- Department of Anesthesiology, The First Hospital of Lanzhou University, Lanzhou, Gansu, China
| | - Yufang Leng
- The First Clinical Medical College, Lanzhou University, Lanzhou, Gansu, China; Department of Anesthesiology, The First Hospital of Lanzhou University, Lanzhou, Gansu, China.
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Haas B, Ciftcioglu J, Jermar S, Weickhardt S, Eckstein N, Kaina B. Methadone-mediated sensitization of glioblastoma cells is drug and cell line dependent. J Cancer Res Clin Oncol 2021; 147:779-792. [PMID: 33315125 PMCID: PMC7872955 DOI: 10.1007/s00432-020-03485-3] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2020] [Accepted: 11/24/2020] [Indexed: 11/27/2022]
Abstract
PURPOSE D,L-methadone (MET), an analgesic drug used for pain treatment and opiate addiction, has achieved attention from oncologists and social media as possible chemoensitizing agent in cancer therapy, notably brain cancer (glioblastoma multiforme, GBM). MET has been reported to enhance doxorubicin-induced cytotoxicity in GBM cells via activation of the µ-opioid receptor (MOR). Here, we extended this work and quantified the toxic effect of MET in comparison to other opioids alone and in combination with doxorubicin and the clinically more relevant alkylating drug temozolomide (TMZ), using a set of GBM cell lines and primary GBM cells. METHODS MOR expression in GBM cells was investigated by immunofluorescence and immunoblotting. Resistance to drugs alone and in combination with anticancer drugs was assessed by MTT assays. Concentration effect curves were fitted by nonlinear regression analysis and IC50 values were calculated. Apoptosis and necrosis rates were determined by annexin V/propidium iodide (PI)-flow cytometry. RESULTS MET alone was cytotoxic in all GBM cell lines and primary GBM cells at high micromolar concentrations (IC50 ~ 60-130 µM), observed both in the metabolic MTT assay and by quantifying apoptosis and necrosis, while morphine and oxycodone were not cytotoxic in this concentration range. Naloxone was not able to block MET-induced cytotoxicity, indicating that cell death-inducing effects of MET are not MOR-dependent. We recorded doxorubicin and TMZ concentration- response curves in combination with fixed MET concentrations. MET enhanced doxorubicin-induced cytotoxicity in only one cell line, and in primary cells it was observed only in a particular MET concentration range. In all assays, MET was not effective in sensitizing cells to TMZ. In two cell lines, MET even decreased the cell's sensitivity to TMZ. CONCLUSION MET was found to be cytotoxic in GBM cells in vitro only at high, clinically not relevant concentrations, where it was effective in inducing apoptosis and necrosis. Sensitizing effects were only observed in combination with doxorubicin, but not with TMZ, and are dependent on cell line and the applied drug concentration. Therefore, our findings do not support the use of MET in the treatment of GBM in combination with TMZ, as no sensitizing effect of MET was observed.
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MESH Headings
- Analgesics, Opioid/administration & dosage
- Analgesics, Opioid/pharmacology
- Antineoplastic Combined Chemotherapy Protocols/pharmacology
- Brain Neoplasms/drug therapy
- Brain Neoplasms/metabolism
- Brain Neoplasms/pathology
- Cell Line, Tumor
- Doxorubicin/administration & dosage
- Doxorubicin/pharmacology
- Drug Screening Assays, Antitumor
- Drug Synergism
- Glioblastoma/drug therapy
- Glioblastoma/metabolism
- Glioblastoma/pathology
- Humans
- Methadone/administration & dosage
- Methadone/pharmacology
- Morphine/pharmacology
- Naloxone/pharmacology
- Oxycodone/pharmacology
- Receptors, Opioid, mu/agonists
- Receptors, Opioid, mu/antagonists & inhibitors
- Receptors, Opioid, mu/biosynthesis
- Tumor Cells, Cultured
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Affiliation(s)
- Bodo Haas
- Federal Institute for Drugs and Medical Devices, Kurt-Georg-Kiesinger-Allee 3, 53175, Bonn, Germany.
| | - Janine Ciftcioglu
- Federal Institute for Drugs and Medical Devices, Kurt-Georg-Kiesinger-Allee 3, 53175, Bonn, Germany
- Faculty of Applied Natural Sciences, Cologne University of Applied Sciences, Kaiser-Wilhelm-Allee, 51368, Leverkusen, Germany
| | - Sanja Jermar
- Federal Institute for Drugs and Medical Devices, Kurt-Georg-Kiesinger-Allee 3, 53175, Bonn, Germany
- Faculty of Applied Natural Sciences, Cologne University of Applied Sciences, Kaiser-Wilhelm-Allee, 51368, Leverkusen, Germany
| | - Sandra Weickhardt
- Federal Institute for Drugs and Medical Devices, Kurt-Georg-Kiesinger-Allee 3, 53175, Bonn, Germany
| | - Niels Eckstein
- Applied Pharmacy, University of Applied Sciences Kaiserslautern, Campus Pirmasens, Carl-Schurz-Str. 10-16, 66953, Pirmasens, Germany
| | - Bernd Kaina
- Institute of Toxicology, University Medical Center, Obere Zahlbacher Strasse 67, 55131, Mainz, Germany
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Walentiny DM, Komla E, Moisa LT, Mustafa MA, Poklis JL, Akbarali HI, Beardsley PM. Methylnaltrexone crosses the blood-brain barrier and attenuates centrally-mediated behavioral effects of morphine and oxycodone in mice. Neuropharmacology 2020; 185:108437. [PMID: 33316279 DOI: 10.1016/j.neuropharm.2020.108437] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2020] [Revised: 10/27/2020] [Accepted: 12/04/2020] [Indexed: 11/18/2022]
Abstract
BACKGROUND Antagonism of peripheral opioid receptors by methylnaltrexone (MNTX) was recently proposed as a potential mechanism to attenuate the development of opioid analgesic tolerance based on experiments conducted in mice. However, reports indicate that MNTX is demethylated to naltrexone (NTX) in mice, and NTX may subsequently cross the blood-brain barrier to antagonize centrally-mediated opioid effects. The goal of this study was to determine whether MNTX alters centrally-mediated behaviors elicited by the opioid analgesics, morphine and oxycodone, and to quantify concentrations of MNTX and NTX in blood and brain following their administration in mice. METHODS Combinations of MNTX and morphine were tested under acute and chronic conditions in thermal nociceptive assays. Effects of MNTX and NTX pretreatment were assessed in an oxycodone discrimination operant procedure. Blood and brain concentrations of these antagonists were quantified after their administration using liquid chromatography-mass spectrometry. RESULTS MNTX dose-dependently attenuated acute and chronic morphine antinociception. MNTX and NTX dose-dependently antagonized the discriminative stimulus effects of oxycodone. MNTX and NTX were detected in both blood and brain after administration of MNTX, confirming its demethylation and demonstrating that MNTX itself can cross the blood-brain barrier. CONCLUSIONS These results provide converging behavioral and analytical evidence that MNTX administration in mice attenuates centrally-mediated effects produced by opioid analgesics and results in functional concentrations of MNTX and NTX in blood and brain. Collectively, these findings indicate that MNTX cannot be administered systemically in mice for making inferences that its effects are peripherally restricted.
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Affiliation(s)
- D Matthew Walentiny
- Department of Pharmacology & Toxicology, Virginia Commonwealth University, 1217 E. Marshall Street, Richmond, VA, 23298-0613, USA.
| | - Essie Komla
- Department of Pharmacology & Toxicology, Virginia Commonwealth University, 1217 E. Marshall Street, Richmond, VA, 23298-0613, USA
| | - Léa T Moisa
- Department of Pharmacology & Toxicology, Virginia Commonwealth University, 1217 E. Marshall Street, Richmond, VA, 23298-0613, USA
| | - Mohammed A Mustafa
- Department of Pharmacology & Toxicology, Virginia Commonwealth University, 1217 E. Marshall Street, Richmond, VA, 23298-0613, USA
| | - Justin L Poklis
- Department of Pharmacology & Toxicology, Virginia Commonwealth University, 1217 E. Marshall Street, Richmond, VA, 23298-0613, USA
| | - Hamid I Akbarali
- Department of Pharmacology & Toxicology, Virginia Commonwealth University, 1217 E. Marshall Street, Richmond, VA, 23298-0613, USA
| | - Patrick M Beardsley
- Department of Pharmacology & Toxicology, Virginia Commonwealth University, 1217 E. Marshall Street, Richmond, VA, 23298-0613, USA; Institute for Drug and Alcohol Studies & Center for Biomarker Research and Precision Medicine, Virginia Commonwealth University, 410 N. 12th Street, PO Box 980613, Richmond, VA, 23298-0613, USA
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Huskinson SL, Platt DM, Brasfield M, Follett ME, Prisinzano TE, Blough BE, Freeman KB. Quantification of observable behaviors induced by typical and atypical kappa-opioid receptor agonists in male rhesus monkeys. Psychopharmacology (Berl) 2020; 237:2075-2087. [PMID: 32372348 PMCID: PMC7308209 DOI: 10.1007/s00213-020-05519-7] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2019] [Accepted: 04/01/2020] [Indexed: 12/20/2022]
Abstract
RATIONALE Kappa-opioid receptor (KOR) agonists are antinociceptive but have side effects that limit their therapeutic utility. New KOR agonists have been developed that are fully efficacious at the KOR but may produce fewer or reduced side effects that are typical of KOR agonists. OBJECTIVES We determined behavioral profiles for typical and atypical KOR agonists purported to differ in intracellular-signaling profiles as well as a mu-opioid receptor (MOR) agonist, oxycodone, using a behavioral scoring system based on Novak et al. (Am J Primatol 28:124-138, 1992, Am J Primatol 46:213-227, 1998) and modified to quantify drug-induced effects (e.g., Duke et al. J Pharmacol Exp Ther 366:145-157, 2018). METHODS Six adult male rhesus monkeys were administered a range of doses of the typical KOR agonists, U50-488H (0.0032-0.1 mg/kg) and salvinorin A (0.00032-0.01 mg/kg); the atypical KOR agonists, nalfurafine (0.0001-0.001 mg/kg) and triazole 1.1 (0.01-0.32 mg/kg); the MOR agonist, oxycodone (0.0032-0.32 mg/kg); and as controls, cocaine (0.032-0.32 mg/kg) and ketamine (0.32-10 mg/kg). For time-course determinations, the largest dose of each KOR agonist or MOR agonist was administered across timepoints (10-320 min). In mixture conditions, oxycodone (0.1 mg/kg) was followed by KOR-agonist administration. RESULTS Typical KOR agonists produced sedative-like and motor-impairing effects. Nalfurafine was similar to typical KOR agonists on most outcomes, and triazole 1.1 produced no effects on its own except for reducing scratch during time-course determinations. In the mixture, all KOR agonists reduced oxycodone-induced scratching, U50-488H and nalfurafine reduced species-typical activity, and U50-488H increased rest/sleep posture. CONCLUSIONS Atypical "biased" KOR agonists produce side-effect profiles that are relatively benign (triazole 1.1) or reduced (nalfurafine) compared to typical KOR agonists.
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MESH Headings
- 3,4-Dichloro-N-methyl-N-(2-(1-pyrrolidinyl)-cyclohexyl)-benzeneacetamide, (trans)-Isomer/pharmacology
- Analgesics, Opioid/pharmacology
- Animals
- Behavior, Animal/drug effects
- Behavior, Animal/physiology
- Diterpenes, Clerodane/pharmacology
- Dose-Response Relationship, Drug
- Macaca mulatta
- Male
- Morphinans/pharmacology
- Motor Activity/drug effects
- Motor Activity/physiology
- Oxycodone/pharmacology
- Receptors, Opioid, kappa/agonists
- Receptors, Opioid, kappa/physiology
- Spiro Compounds/pharmacology
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Affiliation(s)
- S L Huskinson
- Division of Neurobiology and Behavior Research, Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, 39216, USA.
| | - D M Platt
- Division of Neurobiology and Behavior Research, Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, 39216, USA
| | - M Brasfield
- Division of Neurobiology and Behavior Research, Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, 39216, USA
| | - M E Follett
- Division of Neurobiology and Behavior Research, Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, 39216, USA
| | - T E Prisinzano
- Department of Pharmaceutical Sciences, University of Kentucky, Lexington, KY, 40536, USA
| | - B E Blough
- Research Triangle Institute, Research Triangle Park, NC, 27709, USA
| | - K B Freeman
- Division of Neurobiology and Behavior Research, Department of Psychiatry and Human Behavior, University of Mississippi Medical Center, Jackson, MS, 39216, USA
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Wan Z, Chu C, Zhou R, Que B. Effects of Oxycodone Combined With Flurbiprofen Axetil on Postoperative Analgesia and Immune Function in Patients Undergoing Radical Resection of Colorectal Cancer. Clin Pharmacol Drug Dev 2020; 10:251-259. [PMID: 32567233 DOI: 10.1002/cpdd.818] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Accepted: 04/23/2020] [Indexed: 01/15/2023]
Abstract
The influence of surgery and anesthesia on immune function during the perioperative period should not be neglected. In this study, we evaluated the effects of oxycodone combined with flurbiprofen axetil on postoperative analgesia and immune function in patients undergoing radical resection of colorectal cancer (CRC). One hundred and thirty-three were randomized into the oxycodone combined with flurbiprofen axetil (OF) group or the sufentanil combined with flurbiprofen axetil (SF) group. Patients in the OF group were prescribed oxycodone hydrochloride 0.1 mg/kg combined with flurbiprofen axetil 3 mg/kg for postoperative analgesia, whereas the SF group received sufentanil 0.1 μg/kg combined with flurbiprofen axetil 3 mg/kg. The primary outcome was visual analog scale (VAS) score. Secondary outcomes included the quantities of CD4+ , CD8+ , and natural killer (NK) T cells, tumor necrosis factor (TNF)-α level, and interleukin (IL)-6 in peripheral blood, the consumption of analgesics, and the incidence of adverse reactions, and so forth. The VAS scores at rest were similar in both group. However, the VAS scores at cough in the OF group at 8, 12, and 24 hours postsurgery were lower than those in the SF group. Compared with the SF group, the count of CD4+ T cells and ratio of CD4+ /CD8+ were higher in the OF group at 12, 24, 48, and 72 hours postsurgery, although the count of CD8+ and NK T cells was higher than that in the SF group at 48 and 72 hours postsurgery. In addition, the serum level of TNF-α and IL-6 at 12, 24, 48, and 72 hours postsurgery in the OF group was lower than that in the SF group. In addition, the incidence of postoperative nausea, postoperative vomiting, and pruritus was lower, the time to first flatus and bowel movement was earlier in the OF group. Oxycodone combined with flurbiprofen axetil applied for patient-controlled intravenous analgesia could effectively reduce pain intensity, particularly for visceral pain, and help to reverse the status of immunosuppression during radical resection of CRC.
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MESH Headings
- Administration, Intravenous
- Aged
- Analgesia, Patient-Controlled/adverse effects
- Analgesics, Opioid/administration & dosage
- Analgesics, Opioid/adverse effects
- Analgesics, Opioid/pharmacology
- Analgesics, Opioid/therapeutic use
- Anti-Inflammatory Agents, Non-Steroidal/administration & dosage
- Anti-Inflammatory Agents, Non-Steroidal/adverse effects
- Anti-Inflammatory Agents, Non-Steroidal/pharmacology
- Anti-Inflammatory Agents, Non-Steroidal/therapeutic use
- Case-Control Studies
- Colorectal Neoplasms/complications
- Colorectal Neoplasms/surgery
- Cytokines/analysis
- Cytokines/drug effects
- Drug Therapy, Combination/adverse effects
- Drug Therapy, Combination/methods
- Female
- Flurbiprofen/administration & dosage
- Flurbiprofen/adverse effects
- Flurbiprofen/analogs & derivatives
- Flurbiprofen/pharmacology
- Flurbiprofen/therapeutic use
- Humans
- Immunity/drug effects
- Immunity/immunology
- Middle Aged
- Outcome Assessment, Health Care
- Oxycodone/administration & dosage
- Oxycodone/adverse effects
- Oxycodone/pharmacology
- Oxycodone/therapeutic use
- Pain Measurement/drug effects
- Pain, Postoperative/drug therapy
- Pregnancy
- Sufentanil/administration & dosage
- Sufentanil/adverse effects
- Sufentanil/pharmacology
- Sufentanil/therapeutic use
- Visual Analog Scale
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Affiliation(s)
- Zhengzuo Wan
- Department of Anesthesiology, Hangzhou Hospital of Traditional Chinese Medicine, Hangzhou, China
| | - Chunhua Chu
- Department of Acupuncture and Massage, Zhejiang Provincial People's Hospital, Hangzhou, China
- Department of Acupuncture and Massage, People's Hospital of Hangzhou Medical College, Hangzhou, China
| | - Rong Zhou
- Department of Anesthesiology, Hangzhou Hospital of Traditional Chinese Medicine, Hangzhou, China
| | - Bin Que
- Department of Anesthesiology, Hangzhou Hospital of Traditional Chinese Medicine, Hangzhou, China
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46
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Matzeu A, Martin-Fardon R. Targeting the orexin system for prescription opioid use disorder: Orexin-1 receptor blockade prevents oxycodone taking and seeking in rats. Neuropharmacology 2019; 164:107906. [PMID: 31841797 DOI: 10.1016/j.neuropharm.2019.107906] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2019] [Revised: 11/22/2019] [Accepted: 12/03/2019] [Indexed: 12/22/2022]
Abstract
Prescription opioids, such as oxycodone, are potent analgesics that are used to treat and manage pain. However, oxycodone is one of the most commonly abused prescription drugs. Finding an effective strategy to prevent prescription opioid use disorder is urgent. Orexin receptors (OrxR1 and OrxR2) have been implicated in the regulation of motivation, arousal, and stress, making them possible targets for the treatment of substance use disorder. To study the significance of environmental stimuli in maintaining the vulnerability to relapse to oxycodone use, resistance to the extinction of oxycodone-seeking behavior that was elicited by an oxycodone-related stimulus was examined. Rats were trained to self-administer oxycodone in the presence of a contextual/discriminative stimulus (SD). Using this procedure, the rats readily acquired oxycodone self-administration and exhibited increases in physical signs of opioid withdrawal. Following extinction, response-reinstating effects of re-exposure to the SD perseverated. We then tested whether OrxR blockade prevents oxycodone intake and relapse. The effects of the OrxR1 antagonist SB334867 and OrxR2 antagonist TCSOX229 on oxycodone self-administration were tested. SB334867 significantly decreased oxycodone self-administration, whereas TCSOX229 did not produce any effect. To investigate whether OrxR1 and OrxR2 blockade prevents oxycodone seeking, the rats were tested for the ability of SB334867 and TCSOX229 to prevent the SD-induced conditioned reinstatement of oxycodone-seeking behavior. SB334867 decreased oxycodone-seeking behavior, whereas TCSOX229 was ineffective. These results suggest that OrxR1 antagonism prevents excessive prescription opioid use and relapse and might be beneficial for the treatment of prescription opioid use disorder.
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Affiliation(s)
- Alessandra Matzeu
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, USA.
| | - Rémi Martin-Fardon
- Department of Molecular Medicine, The Scripps Research Institute, La Jolla, CA, USA
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47
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Fan XY, Shi G, Zhao P. Methylation in Syn and Psd95 genes underlie the inhibitory effect of oxytocin on oxycodone-induced conditioned place preference. Eur Neuropsychopharmacol 2019; 29:1464-1475. [PMID: 31735530 DOI: 10.1016/j.euroneuro.2019.10.010] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2019] [Revised: 10/02/2019] [Accepted: 10/29/2019] [Indexed: 12/12/2022]
Abstract
Oxycodone (Oxy) is one of the most effective analgesics in medicine, but is associated with the development of dependence. Recent studies demonstrating epigenetic changes in the brain after exposure to opiates have provided an insight into possible mechanisms underlying addiction. Oxytocin (OT), an endogenous neuropeptide well known for preventing drug abuse, is a promising pharmacotherapy to counteract addiction. Therefore, we explored the mechanism of Oxy addiction and the role of OT in Oxy-induced epigenetic alterations. In this study, drug-induced changes in conditioned place preference (CPP), i.e. the expression of synaptic proteins and synaptic density in the ventral tegmental area (VTA) were measured. We also sought to identify DNA methyltransferases (DNMTs), ten-eleven translocations (TETs), global 5-methylcytosine (5-mC), and DNA methylation of two genes implicated in plasticity (Synaptophysin, Syn; Post-synaptic density protein 95, Psd95). Oxy (3.0 mg/kg, i.p.) induced CPP acquisition in Sprague-Dawley rats. Oxy down-regulated DNMT1 and up-regulated TET1-3, leading to a decrease in global 5-mC levels and differential demethylation at exon 1 of Syn and exon 2 of Psd95. These changes in DNA methylation of Syn and Psd95 elevated the expression of synaptic proteins (SYN, PSD95) and synaptic density in the VTA. Pretreatment with OT (2.5 µg, i.c.v.) via its receptor specifically blocked Oxy CPP, normalized synaptic density, and regulated DNMT1 and TET2-3 causing reverse of DNA demethylation of Syn and Psd95. DNA methylation is an important gene regulation mechanism underlying Oxy CPP, and OT - via its receptor - could specifically inhibit Oxy addiction.
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Affiliation(s)
- Xin-Yu Fan
- Department of Anesthesiology, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, 110004, Shenyang, China
| | - Guang Shi
- Department of Neurology, Liaoning Provincial People's Hospital, Shenyang, China
| | - Ping Zhao
- Department of Anesthesiology, Shengjing Hospital of China Medical University, No. 36 Sanhao Street, 110004, Shenyang, China.
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48
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Tenney RD, Blake S, Bremer PT, Zhou B, Hwang CS, Poklis JL, Janda KD, Banks ML. Vaccine blunts fentanyl potency in male rhesus monkeys. Neuropharmacology 2019; 158:107730. [PMID: 31369740 PMCID: PMC6745253 DOI: 10.1016/j.neuropharm.2019.107730] [Citation(s) in RCA: 40] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2019] [Revised: 07/25/2019] [Accepted: 07/28/2019] [Indexed: 11/30/2022]
Abstract
One proposed factor contributing to the increased frequency of opioid overdose deaths is the emergence of novel synthetic opioids, including illicit fentanyl and fentanyl analogues. A treatment strategy currently under development to address the ongoing opioid crisis is immunopharmacotherapies or opioid-targeted vaccines. The present study determined the effectiveness and selectivity of a fentanyl-tetanus toxoid conjugate vaccine to alter the behavioral effects of fentanyl and a structurally dissimilar mu-opioid agonist oxycodone in male rhesus monkeys (n = 3-4). Fentanyl and oxycodone produced dose-dependent suppression of behavior in an assay of schedule-controlled responding and antinociception in an assay of thermal nociception (50 °C). Acute naltrexone (0.032 mg/kg) produced an approximate 10-fold potency shift for fentanyl to decrease operant responding. The fentanyl vaccine was administered at weeks 0, 2, 4, 9, 19, and 44 and fentanyl or oxycodone potencies in both behavioral assays were redetermined over the course of 49 weeks. The vaccine significantly and selectively shifted fentanyl potency at least 10-fold in both assays at several time points over the entire experimental period. Mid-point titer levels correlated with fentanyl antinociceptive potency shifts. Antibody affinity for fentanyl as measured by a competitive binding assay improved over time to approximately 3-4 nM. The fentanyl vaccine also increased fentanyl plasma levels approximately 6-fold consistent with the hypothesis that the vaccine sequesters fentanyl in the blood. Overall, these results support the continued development and evaluation of this fentanyl vaccine in humans to address the ongoing opioid crisis.
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Affiliation(s)
- Rebekah D Tenney
- Department of Pharmacology and Toxicology, Virginia Commonwealth University School of Medicine, Richmond, VA, 23298, USA
| | - Steven Blake
- Departments of Chemistry and Immunology and Microbial Science, Skaggs Institute for Chemical Biology, Worm Institute for Research and Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Paul T Bremer
- Departments of Chemistry and Immunology and Microbial Science, Skaggs Institute for Chemical Biology, Worm Institute for Research and Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Bin Zhou
- Departments of Chemistry and Immunology and Microbial Science, Skaggs Institute for Chemical Biology, Worm Institute for Research and Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Candy S Hwang
- Departments of Chemistry and Immunology and Microbial Science, Skaggs Institute for Chemical Biology, Worm Institute for Research and Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA
| | - Justin L Poklis
- Department of Pharmacology and Toxicology, Virginia Commonwealth University School of Medicine, Richmond, VA, 23298, USA
| | - Kim D Janda
- Departments of Chemistry and Immunology and Microbial Science, Skaggs Institute for Chemical Biology, Worm Institute for Research and Medicine, The Scripps Research Institute, La Jolla, CA, 92037, USA.
| | - Matthew L Banks
- Department of Pharmacology and Toxicology, Virginia Commonwealth University School of Medicine, Richmond, VA, 23298, USA.
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49
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Dvorácskó S, Keresztes A, Mollica A, Stefanucci A, Macedonio G, Pieretti S, Zádor F, Walter FR, Deli MA, Kékesi G, Bánki L, Tuboly G, Horváth G, Tömböly C. Preparation of bivalent agonists for targeting the mu opioid and cannabinoid receptors. Eur J Med Chem 2019; 178:571-588. [PMID: 31220675 DOI: 10.1016/j.ejmech.2019.05.037] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2019] [Revised: 04/30/2019] [Accepted: 05/12/2019] [Indexed: 11/17/2022]
Abstract
In order to obtain novel pharmacological tools and to investigate a multitargeting analgesic strategy, the CB1 and CB2 cannabinoid receptor agonist JWH-018 was conjugated with the opiate analgesic oxycodone or with an enkephalin related tetrapeptide. The opioid and cannabinoid pharmacophores were coupled via spacers of different length and chemical structure. In vitro radioligand binding experiments confirmed that the resulting bivalent compounds bound both to the opioid and to the cannabinoid receptors with moderate to high affinity. The highest affinity bivalent derivatives 11 and 19 exhibited agonist properties in [35S]GTPγS binding assays. These compounds activated MOR and CB (11 mainly CB2, whereas 19 mainly CB1) receptor-mediated signaling, as it was revealed by experiments using receptor specific antagonists. In rats both 11 and 19 exhibited antiallodynic effect similar to the parent drugs in 20 μg dose at spinal level. These results support the strategy of multitargeting G-protein coupled receptors to develop lead compounds with antinociceptive properties.
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MESH Headings
- Analgesics, Opioid/chemical synthesis
- Analgesics, Opioid/chemistry
- Analgesics, Opioid/pharmacology
- Animals
- Dose-Response Relationship, Drug
- Enkephalins/chemistry
- Enkephalins/pharmacology
- Indoles/chemistry
- Indoles/pharmacology
- Mice
- Molecular Structure
- Naphthalenes/chemistry
- Naphthalenes/pharmacology
- Oxycodone/chemistry
- Oxycodone/pharmacology
- Rats
- Receptor, Cannabinoid, CB1/antagonists & inhibitors
- Receptor, Cannabinoid, CB1/metabolism
- Receptor, Cannabinoid, CB2/antagonists & inhibitors
- Receptor, Cannabinoid, CB2/metabolism
- Receptors, Opioid, mu/antagonists & inhibitors
- Receptors, Opioid, mu/metabolism
- Structure-Activity Relationship
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Affiliation(s)
- Szabolcs Dvorácskó
- A Laboratory of Chemical Biology, Institute of Biochemistry, Biological Research Centre of the Hungarian Academy of Sciences, Temesvári krt. 62., 6726, Szeged, Hungary
| | - Attila Keresztes
- A Laboratory of Chemical Biology, Institute of Biochemistry, Biological Research Centre of the Hungarian Academy of Sciences, Temesvári krt. 62., 6726, Szeged, Hungary
| | - Adriano Mollica
- Dipartimento di Farmacia, Università di Chieti-Pescara "G. d'Annunzio", Via dei Vestini 31, 66100, Chieti, Italy
| | - Azzurra Stefanucci
- Dipartimento di Farmacia, Università di Chieti-Pescara "G. d'Annunzio", Via dei Vestini 31, 66100, Chieti, Italy
| | - Giorgia Macedonio
- Dipartimento di Farmacia, Università di Chieti-Pescara "G. d'Annunzio", Via dei Vestini 31, 66100, Chieti, Italy
| | - Stefano Pieretti
- Istituto Superiore di Sanità, Centro Nazionale Ricerca e Valutazione Preclinica e Clinica dei Farmaci, Viale Regina Elena 299, 00161, Rome, Italy
| | - Ferenc Zádor
- Laboratory of Opioid Research, Institute of Biochemistry, Biological Research Centre of the Hungarian Academy of Sciences, Temesvári krt. 62., 6726, Szeged, Hungary
| | - Fruzsina R Walter
- Biological Barriers Research Group, Institute of Biophysics, Biological Research Centre of the Hungarian Academy of Sciences, Temesvári krt. 62., 6726, Szeged, Hungary
| | - Mária A Deli
- Biological Barriers Research Group, Institute of Biophysics, Biological Research Centre of the Hungarian Academy of Sciences, Temesvári krt. 62., 6726, Szeged, Hungary
| | - Gabriella Kékesi
- Department of Physiology, Faculty of Medicine, University of Szeged, 6720, Szeged, Dóm tér 10., Hungary
| | - László Bánki
- Department of Traumatology, Faculty of Medicine, University of Szeged, 6725, Szeged, Semmelweis u. 6., Hungary
| | - Gábor Tuboly
- Department of Neurology, Faculty of Medicine, University of Szeged, 6725, Szeged, Semmelweis u. 6., Hungary
| | - Gyöngyi Horváth
- Department of Physiology, Faculty of Medicine, University of Szeged, 6720, Szeged, Dóm tér 10., Hungary
| | - Csaba Tömböly
- A Laboratory of Chemical Biology, Institute of Biochemistry, Biological Research Centre of the Hungarian Academy of Sciences, Temesvári krt. 62., 6726, Szeged, Hungary.
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50
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Randesi M, Contoreggi NH, Zhou Y, Rubin BR, Bellamy JR, Yu F, Gray JD, McEwen BS, Milner TA, Kreek MJ. Sex Differences in Neuroplasticity- and Stress-Related Gene Expression and Protein Levels in the Rat Hippocampus Following Oxycodone Conditioned Place Preference. Neuroscience 2019; 410:274-292. [PMID: 31071414 DOI: 10.1016/j.neuroscience.2019.04.047] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2019] [Revised: 03/29/2019] [Accepted: 04/24/2019] [Indexed: 12/13/2022]
Abstract
Prescription opioid abuse is a serious public health issue. Recently, we showed that female and male Sprague-Dawley rats acquire conditioned place preference (CPP) to the mu opioid receptor agonist oxycodone. Anatomical analysis of the hippocampus from these rats unveiled sex differences in the opioid system in a way that would support excitation and opiate associative learning processes especially in females. In this study, we examined the expression and protein densities of opioid, plasticity, stress and related kinase and signaling molecules in the hippocampus of female and male rats following oxycodone CPP. Oxycodone CPP females have: a) increases in ARC (activity regulated cytoskeletal-associated protein)-immunoreactivity (ir) in CA3 pyramidal cells; b) decreases in Npy (neuropeptide Y) gene expression in the medial hippocampus but higher numbers of NPY-containing hilar interneurons compared to males; c) increases in Crhr2 (corticotropin releasing factor receptor 2) expression in CA2/3; d) increases in Akt1 (AKT serine/threonine kinase 1) expression in medial hippocampus; and e) decreases in phosphorylated MAPK (mitogen activated protein kinase)-ir in CA1 and dentate gyrus. Oxycodone CPP males have: a) increases in Bdnf (brain derived-neurotrophic factor) expression, which is known to be produced in granule cells, relative to females; b) elevated Mapk1 expression and pMAPK-ir in the dentate hilus which harbors newly generated granule cells; and c) increases in CRHR1-ir in CA3 pyramidal cell soma. These sex-specific changes in plasticity, stress and kinase markers in hippocampal circuitry parallel previously observed sex differences in the opioid system after oxycodone CPP.
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Affiliation(s)
- Matthew Randesi
- The Laboratory of the Biology of Addictive Diseases, The Rockefeller University, 1230 York Avenue, New York, NY 10065, United States of America
| | - Natalina H Contoreggi
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, 407 East 61st Street, New York, NY 10065, United States of America
| | - Yan Zhou
- The Laboratory of the Biology of Addictive Diseases, The Rockefeller University, 1230 York Avenue, New York, NY 10065, United States of America
| | - Batsheva R Rubin
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, 407 East 61st Street, New York, NY 10065, United States of America
| | - Julia R Bellamy
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, 407 East 61st Street, New York, NY 10065, United States of America
| | - Fangmin Yu
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, 407 East 61st Street, New York, NY 10065, United States of America
| | - Jason D Gray
- Harold and Margaret Milliken Hatch Laboratory of Neuroendocrinology, The Rockefeller University, 1230 York Avenue, New York, NY 10065, United States of America
| | - Bruce S McEwen
- Harold and Margaret Milliken Hatch Laboratory of Neuroendocrinology, The Rockefeller University, 1230 York Avenue, New York, NY 10065, United States of America
| | - Teresa A Milner
- Feil Family Brain and Mind Research Institute, Weill Cornell Medicine, 407 East 61st Street, New York, NY 10065, United States of America; Harold and Margaret Milliken Hatch Laboratory of Neuroendocrinology, The Rockefeller University, 1230 York Avenue, New York, NY 10065, United States of America.
| | - Mary Jeanne Kreek
- The Laboratory of the Biology of Addictive Diseases, The Rockefeller University, 1230 York Avenue, New York, NY 10065, United States of America
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