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Bates JN, Baby SM, Getsy PM, Coffee GA, Hsieh YH, Knauss ZT, Dahan A, Bubier JA, MacFarlane PM, Mueller D, Lewis SJ. L-NAC and L-NAC methyl ester prevent and overcome physical dependence to fentanyl in male rats. Sci Rep 2024; 14:9091. [PMID: 38643270 PMCID: PMC11032344 DOI: 10.1038/s41598-024-59551-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2023] [Accepted: 04/11/2024] [Indexed: 04/22/2024] Open
Abstract
N-acetyl-L-cysteine (L-NAC) is a proposed therapeutic for opioid use disorder. This study determined whether co-injections of L-NAC (500 μmol/kg, IV) or its highly cell-penetrant analogue, L-NAC methyl ester (L-NACme, 500 μmol/kg, IV), prevent acquisition of acute physical dependence induced by twice-daily injections of fentanyl (125 μg/kg, IV), and overcome acquired dependence to these injections in freely-moving male Sprague Dawley rats. The injection of the opioid receptor antagonist, naloxone HCl (NLX; 1.5 mg/kg, IV), elicited a series of withdrawal phenomena (i.e. behavioral and cardiorespiratory responses, hypothermia and body weight loss) in rats that received 5 or 10 injections of fentanyl and similar numbers of vehicle co-injections. With respect to the development of dependence, the NLX-precipitated withdrawal phenomena were reduced in rats that received had co-injections of L-NAC, and more greatly reduced in rats that received co-injections of L-NACme. In regard to overcoming established dependence, the NLX-precipitated withdrawal phenomena in rats that had received 10 injections of fentanyl (125 μg/kg, IV) were reduced in rats that had received co-injections of L-NAC, and more greatly reduced in rats that received co-injections of L-NACme beginning with injection 6 of fentanyl. This study provides compelling evidence that co-injections of L-NAC and L-NACme prevent the acquisition of physical dependence and overcome acquired dependence to fentanyl in male rats. The higher efficacy of L-NACme is likely due to its greater cell penetrability in brain regions mediating dependence to fentanyl and interaction with intracellular signaling cascades, including redox-dependent processes, responsible for the acquisition of physical dependence to fentanyl.
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Affiliation(s)
- James N Bates
- Department of Anesthesiology, University of Iowa Hospitals and Clinics, Iowa City, IA, USA
- Atelerix Life Sciences Inc., 300 East Main Street, Suite 202, Charlottesville, VA, USA
| | - Santhosh M Baby
- Section of Biology, Galleon Pharmaceuticals, Inc, Horsham, PA, USA
- Translational Sciences Treatment Discovery, Galvani Bioelectronics, Inc, 1250 S Collegeville Rd, Collegeville, PA, USA
| | - Paulina M Getsy
- Department of Pediatrics, Division of Pulmonology, Allergy, and Immunology, Case Western Reserve University, Cleveland, OH, USA
| | - Gregory A Coffee
- Department of Pediatrics, Division of Pulmonology, Allergy, and Immunology, Case Western Reserve University, Cleveland, OH, USA
| | - Yee-Hsee Hsieh
- Division of Pulmonary, Critical Care and Sleep Medicine, Case Western Reserve University, Cleveland, OH, USA
| | - Zackery T Knauss
- Department of Biological Sciences, Kent State University, Kent, OH, USA
| | - Albert Dahan
- Department of Anesthesiology, Leiden University Medical Center, Leiden, Netherlands
| | | | - Peter M MacFarlane
- Department of Pediatrics, Division of Pulmonology, Allergy, and Immunology, Case Western Reserve University, Cleveland, OH, USA
| | - Devin Mueller
- Department of Biological Sciences, Kent State University, Kent, OH, USA
| | - Stephen J Lewis
- Department of Pediatrics, Division of Pulmonology, Allergy, and Immunology, Case Western Reserve University, Cleveland, OH, USA.
- Department of Pharmacology, Case Western Reserve University, Cleveland, OH, USA.
- Functional Electrical Stimulation Center, Case Western Reserve University, Cleveland, OH, USA.
- Department of Pediatrics, Division of Pulmonology, Allergy and Immunology, School of Medicine,, Case Western Reserve University, 10900 Euclid Avenue, Cleveland, OH, USA.
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2
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Kosciuczuk U, Jakubow P, Tarnowska K, Rynkiewicz-Szczepanska E. Opioid Therapy and Implications for Oxidative Balance: A Clinical Study of Total Oxidative Capacity (TOC) and Total Antioxidative Capacity (TAC). J Clin Med 2023; 13:82. [PMID: 38202088 PMCID: PMC10779948 DOI: 10.3390/jcm13010082] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/03/2023] [Accepted: 12/13/2023] [Indexed: 01/12/2024] Open
Abstract
BACKGROUND Opioids are used in pharmacotherapy for chronic pain. The phenomenon of their influence on the oxidative-antioxidant balance is poorly understood. Additionally, little is known about the oxidative status in patients receiving chronic opioid noncancer pain therapy. METHODS The primary goal was to explore oxidative status using the total oxidative capacity (TOC) and total antioxidative capacity (TAC) in patients with chronic lower back pain (LBP) treated with opioids. The secondary task was to present the risk factors connected with the duration of therapy or anthropometric parameters. Plasma TOC and TAC were analyzed in the study group (n = 28), i.e., patients with chronic LBP treated with opioids, and in the control group (n = 11), i.e., healthy volunteers. RESULTS The TAC was significantly lower in the study group compared to the control group (p < 0.05), while the TOC did not differ significantly. A statistically lower TOC for buprenorphine compared to oxycodone (p = 0.019) and tramadol (p = 0.036) was observed. The TOC did not differ between tramadol and oxycodone. The highest TAC was described for oxycodone, while the TAC for buprenorphine and tramadol was significantly lower in comparison with oxycodone (p = 0.007 and p = 0.016). The TOC/TAC ratio was higher in patients with nicotinism in both groups. CONCLUSIONS Patients receiving chronic opioid therapy presented a lower antioxidative capacity. There were differences in opioid-induced oxidative imbalance, which is very important clinically. Nicotinism increases the oxidative-antioxidative imbalance. The least oxidative capacity was associated with buprenorphine, while oxycodone showed the greatest antioxidant activity. The most favorable TOC/TAC ratio was observed for buprenorphine. It is suggested that buprenorphine or oxycodone has the best profile, and there is no correlation with the duration of opioid therapy or the opioid dose. However, all opioid substances can potentially enhance the oxidative-antioxidative status.
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Affiliation(s)
- Urszula Kosciuczuk
- Department of Anaesthesiology and Intensive Therapy, Faculty of Medicine, Medical University of Bialystok, 15-089 Bialystok, Poland
| | - Piotr Jakubow
- Department of Paediatric Anaesthesiology and Intensive Therapy with Pain Division, Faculty of Medicine, Medical University of Bialystok, 15-089 Bialystok, Poland;
| | - Katarzyna Tarnowska
- Department of Anaesthesiology and Intensive Therapy, Faculty of Medicine, Medical University of Bialystok, 15-089 Bialystok, Poland
| | - Ewa Rynkiewicz-Szczepanska
- Department of Anaesthesiology and Intensive Therapy, Faculty of Medicine, Medical University of Bialystok, 15-089 Bialystok, Poland
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Halcrow PW, Kumar N, Hao E, Khan N, Meucci O, Geiger JD. Mu opioid receptor-mediated release of endolysosome iron increases levels of mitochondrial iron, reactive oxygen species, and cell death. NEUROIMMUNE PHARMACOLOGY AND THERAPEUTICS 2023; 2:19-35. [PMID: 37027339 PMCID: PMC10070011 DOI: 10.1515/nipt-2022-0013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Accepted: 09/01/2022] [Indexed: 11/15/2022]
Abstract
Objectives Opioids including morphine and DAMGO activate mu-opioid receptors (MOR), increase intracellular reactive oxygen species (ROS) levels, and induce cell death. Ferrous iron (Fe2+) through Fenton-like chemistry increases ROS levels and endolysosomes are "master regulators of iron metabolism" and contain readily-releasable Fe2+ stores. However, mechanisms underlying opioid-induced changes in endolysosome iron homeostasis and downstream-signaling events remain unclear. Methods We used SH-SY5Y neuroblastoma cells, flow cytometry, and confocal microscopy to measure Fe2+ and ROS levels and cell death. Results Morphine and DAMGO de-acidified endolysosomes, decreased endolysosome Fe2+ levels, increased cytosol and mitochondria Fe2+ and ROS levels, depolarized mitochondrial membrane potential, and induced cell death; effects blocked by the nonselective MOR antagonist naloxone and the selective MOR antagonist β-funaltrexamine (β-FNA). Deferoxamine, an endolysosome-iron chelator, inhibited opioid agonist-induced increases in cytosolic and mitochondrial Fe2+ and ROS. Opioid-induced efflux of endolysosome Fe2+ and subsequent Fe2+ accumulation in mitochondria were blocked by the endolysosome-resident two-pore channel inhibitor NED-19 and the mitochondrial permeability transition pore inhibitor TRO. Conclusions Opioid agonist-induced increases in cytosolic and mitochondrial Fe2+ and ROS as well as cell death appear downstream of endolysosome de-acidification and Fe2+ efflux from the endolysosome iron pool that is sufficient to affect other organelles.
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Affiliation(s)
- Peter W. Halcrow
- Department of Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND, USA
| | - Nirmal Kumar
- Department of Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND, USA
| | - Emily Hao
- Department of Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND, USA
| | - Nabab Khan
- Department of Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND, USA
| | - Olimpia Meucci
- Department of Physiology and Pharmacology, Drexel University School of Medicine, Philadelphia, PA, USA
| | - Jonathan D. Geiger
- Department of Biomedical Sciences, University of North Dakota School of Medicine and Health Sciences, Grand Forks, ND, USA
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4
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Rullo L, Caputi FF, Losapio LM, Morosini C, Posa L, Canistro D, Vivarelli F, Romualdi P, Candeletti S. Effects of Different Opioid Drugs on Oxidative Status and Proteasome Activity in SH-SY5Y Cells. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27238321. [PMID: 36500414 PMCID: PMC9738452 DOI: 10.3390/molecules27238321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/28/2022] [Accepted: 11/22/2022] [Indexed: 12/02/2022]
Abstract
Opioids are the most effective drugs used for the management of moderate to severe pain; however, their chronic use is often associated with numerous adverse effects. Some results indicate the involvement of oxidative stress as well as of proteasome function in the development of some opioid-related side effects including analgesic tolerance, opioid-induced hyperalgesia (OIH) and dependence. Based on the evidence, this study investigated the impact of morphine, buprenorphine or tapentadol on intracellular reactive oxygen species levels (ROS), superoxide dismutase activity/gene expression, as well as β2 and β5 subunit proteasome activity/biosynthesis in SH-SY5Y cells. Results showed that tested opioids differently altered ROS production and SOD activity/biosynthesis. Indeed, the increase in ROS production and the reduction in SOD function elicited by morphine were not shared by the other opioids. Moreover, tested drugs produced distinct changes in β2(trypsin-like) and β5(chymotrypsin-like) proteasome activity and biosynthesis. In fact, while prolonged morphine exposure significantly increased the proteolytic activity of both subunits and β5 mRNA levels, buprenorphine and tapentadol either reduced or did not alter these parameters. These results, showing different actions of the selected opioid drugs on the investigated parameters, suggest that a low µ receptor intrinsic efficacy could be related to a smaller oxidative stress and proteasome activation and could be useful to shed more light on the role of the investigated cellular processes in the occurrence of these opioid drug side effects.
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Affiliation(s)
- Laura Rullo
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum—University of Bologna, Via Irnerio 48, 40126 Bologna, Italy
| | - Francesca Felicia Caputi
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum—University of Bologna, Via Irnerio 48, 40126 Bologna, Italy
| | - Loredana Maria Losapio
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum—University of Bologna, Via Irnerio 48, 40126 Bologna, Italy
| | - Camilla Morosini
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum—University of Bologna, Via Irnerio 48, 40126 Bologna, Italy
| | - Luca Posa
- Department of Pharmacology and Experimental Therapeutics, Boston University, 700 Albany Street, Boston, MA 02118, USA
| | - Donatella Canistro
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum—University of Bologna, Via Irnerio 48, 40126 Bologna, Italy
| | - Fabio Vivarelli
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum—University of Bologna, Via Irnerio 48, 40126 Bologna, Italy
| | - Patrizia Romualdi
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum—University of Bologna, Via Irnerio 48, 40126 Bologna, Italy
- Correspondence: ; Tel.: +39-0512091866
| | - Sanzio Candeletti
- Department of Pharmacy and Biotechnology, Alma Mater Studiorum—University of Bologna, Via Irnerio 48, 40126 Bologna, Italy
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Opioids and Vitamin C: Known Interactions and Potential for Redox-Signaling Crosstalk. Antioxidants (Basel) 2022; 11:antiox11071267. [PMID: 35883757 PMCID: PMC9312198 DOI: 10.3390/antiox11071267] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 06/17/2022] [Accepted: 06/21/2022] [Indexed: 12/10/2022] Open
Abstract
Opioids are among the most widely used classes of pharmacologically active compounds both clinically and recreationally. Beyond their analgesic efficacy via μ opioid receptor (MOR) agonism, a prominent side effect is central respiratory depression, leading to systemic hypoxia and free radical generation. Vitamin C (ascorbic acid; AA) is an essential antioxidant vitamin and is involved in the recycling of redox cofactors associated with inflammation. While AA has been shown to reduce some of the negative side effects of opioids, the underlying mechanisms have not been explored. The present review seeks to provide a signaling framework under which MOR activation and AA may interact. AA can directly quench reactive oxygen and nitrogen species induced by opioids, yet this activity alone does not sufficiently describe observations. Downstream of MOR activation, confounding effects from AA with STAT3, HIF1α, and NF-κB have the potential to block production of antioxidant proteins such as nitric oxide synthase and superoxide dismutase. Further mechanistic research is necessary to understand the underlying signaling crosstalk of MOR activation and AA in the amelioration of the negative, potentially fatal side effects of opioids.
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6
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Getsy PM, Baby SM, May WJ, Lewis THJ, Bates JN, Hsieh YH, Gaston B, Lewis SJ. L-NAC reverses of the adverse effects of fentanyl infusion on ventilation and blood-gas chemistry. Biomed Pharmacother 2022; 153:113277. [PMID: 35724513 PMCID: PMC9458628 DOI: 10.1016/j.biopha.2022.113277] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2022] [Revised: 06/06/2022] [Accepted: 06/08/2022] [Indexed: 11/29/2022] Open
Abstract
There is an urgent need for development of drugs that are able to reverse the adverse effects of opioids on breathing and arterial blood-gas (ABG) chemistry while preserving opioid analgesia. The present study describes the effects of bolus injections of N-acetyl-L-cysteine (L-NAC, 500 μmol/kg, IV) on ventilatory parameters, ABG chemistry, Alveolar-arterial (A-a) gradient, sedation (righting reflex) and analgesia status (tail-flick latency assay) in unanesthetized adult male Sprague Dawley rats receiving a continuous infusion of fentanyl (1 μg/kg/min, IV). Fentanyl infusion elicited pronounced disturbances in (1) ventilatory parameters (e.g., decreases in frequency of breathing, tidal volume and minute ventilation), (2) ABG chemistry (decreases in pH, pO2, sO2 with increases in pCO2), (3) A-a gradient (increases that were consistent with reduced alveolar gas exchange), and (4) sedation and analgesia. Bolus injections of L-NAC given 60 and 90 min after start of fentanyl infusion elicited rapid and sustained reversal of the deleterious effects of fentanyl infusion on ventilatory parameters and ABG chemistry, whereas they did not affect the sedative or analgesic effects of fentanyl. Systemic L-NAC is approved for human use, and thus our findings raise the possibility that this biologically active thiol may be an effective compound to combat opioid-induced respiratory depression in human subjects.
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Affiliation(s)
- Paulina M Getsy
- Department of Pediatrics, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Santhosh M Baby
- Galleon Pharmaceuticals, Inc., 213 Witmer Road, Horsham, PA 19044, USA.
| | - Walter J May
- Pediatric Respiratory Medicine, University of Virginia School of Medicine, Charlottesville, VA 22908, USA
| | - Tristan H J Lewis
- Department of Pediatrics, Case Western Reserve University, Cleveland, OH 44106, USA
| | - James N Bates
- Department of Anesthesiology, University of Iowa Hospitals and Clinics, Iowa City, IA 52242, USA
| | - Yee-Hsee Hsieh
- Division of Pulmonary, Critical Care and Sleep Medicine, Case Western Reserve University, Cleveland, OH 44106, USA
| | - Benjamin Gaston
- Herman B Wells Center for Pediatric Research, Indiana University School of Medicine, Indianapolis, IN 46202, USA
| | - Stephen J Lewis
- Department of Pediatrics, Case Western Reserve University, Cleveland, OH 44106, USA; Department of Pharmacology, Case Western Reserve University, Cleveland, OH 44106, USA.
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7
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Reymond S, Vujić T, Schvartz D, Sanchez JC. Morphine-induced modulation of Nrf2-antioxidant response element signaling pathway in primary human brain microvascular endothelial cells. Sci Rep 2022; 12:4588. [PMID: 35301408 PMCID: PMC8931063 DOI: 10.1038/s41598-022-08712-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 03/07/2022] [Indexed: 11/09/2022] Open
Abstract
Morphine is one of the most potent opioid analgesic used for pain treatment. Morphine action in the central nervous system requires crossing the blood-brain barrier. Due to the controversial relationship between morphine and oxidative stress, the potential pro- or antioxidant effects of morphine in the blood-brain barrier is important to be understood, as oxidative stress could cause its disruption and predispose to neurodegenerative diseases. However, investigation is scarce in human brain endothelial cells. Therefore, the present study evaluated the impact of morphine exposure at three different concentrations (1, 10 and 100 µM) for 24 h and 48 h on primary human brain microvascular endothelial cells. A quantitative data-independent acquisition mass spectrometry strategy was used to analyze proteome modulations. Almost 3000 proteins were quantified of which 217 were reported to be significantly regulated in at least one condition versus untreated control. Pathway enrichment analysis unveiled dysregulation of the Nrf2 pathway involved in oxidative stress response. Seahorse assay underlined mitochondria dysfunctions, which were supported by significant expression modulations of relevant mitochondrial proteins. In conclusion, our study revealed the dysregulation of the Nrf2 pathway and mitochondria dysfunctions after morphine exposure, highlighting a potential redox imbalance in human brain endothelial cells.
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Affiliation(s)
- Sandrine Reymond
- Department of Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland.,Swiss Center for Applied Human Toxicology, Geneva, Switzerland
| | - Tatjana Vujić
- Department of Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland.,Swiss Center for Applied Human Toxicology, Geneva, Switzerland
| | - Domitille Schvartz
- Department of Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland.,Swiss Center for Applied Human Toxicology, Geneva, Switzerland
| | - Jean-Charles Sanchez
- Department of Medicine, Faculty of Medicine, University of Geneva, Geneva, Switzerland. .,Swiss Center for Applied Human Toxicology, Geneva, Switzerland.
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8
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Wen S, Jiang Y, Liang S, Cheng Z, Zhu X, Guo Q. Opioids Regulate the Immune System: Focusing on Macrophages and Their Organelles. Front Pharmacol 2022; 12:814241. [PMID: 35095529 PMCID: PMC8790028 DOI: 10.3389/fphar.2021.814241] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2021] [Accepted: 12/20/2021] [Indexed: 01/02/2023] Open
Abstract
Opioids are the most widely used analgesics and therefore have often been the focus of pharmacological research. Macrophages are the most plastic cells in the hematopoietic system. They show great functional diversity in various organism tissues and are an important consideration for the study of phagocytosis, cellular immunity, and molecular immunology. The expression of opioid receptors in macrophages indicates that opioid drugs act on macrophages and regulate their functions. This article reviewed the collection of research on effects of opioids on macrophage function. Studies show that opioids, both endogenous and exogenous, can affect the function of macrophages, effecting their proliferation, chemotaxis, transport, phagocytosis, expression of cytokines and chemokine receptors, synthesis and secretion of cytokines, polarization, and apoptosis. Many of these effects are closely associated with mitochondrial function and functions of other organelles in macrophages. Therefore, in depth research into effects of opioids on macrophage organelles may lead to some interesting new discoveries. In view of the important role of macrophages in HIV infection and tumor progression, this review also discusses effects of opioids on macrophages in these two pathological conditions.
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Affiliation(s)
- Shaohua Wen
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Yuan Jiang
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Shuang Liang
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Zhigang Cheng
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Xiaoyan Zhu
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
| | - Qulian Guo
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan, China.,National Clinical Research Center for Geriatric Disorders, Xiangya Hospital, Central South University, Changsha, China
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9
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Dworsky-Fried Z, Chadwick CI, Kerr BJ, Taylor AMW. Multiple Sclerosis and the Endogenous Opioid System. Front Neurosci 2021; 15:741503. [PMID: 34602975 PMCID: PMC8484329 DOI: 10.3389/fnins.2021.741503] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 08/26/2021] [Indexed: 01/10/2023] Open
Abstract
Multiple sclerosis (MS) is an autoimmune disease characterized by chronic inflammation, neuronal degeneration and demyelinating lesions within the central nervous system. The mechanisms that underlie the pathogenesis and progression of MS are not fully known and current therapies have limited efficacy. Preclinical investigations using the murine experimental autoimmune encephalomyelitis (EAE) model of MS, as well as clinical observations in patients with MS, provide converging lines of evidence implicating the endogenous opioid system in the pathogenesis of this disease. In recent years, it has become increasingly clear that endogenous opioid peptides, binding μ- (MOR), κ- (KOR) and δ-opioid receptors (DOR), function as immunomodulatory molecules within both the immune and nervous systems. The endogenous opioid system is also well known to play a role in the development of chronic pain and negative affect, both of which are common comorbidities in MS. As such, dysregulation of the opioid system may be a mechanism that contributes to the pathogenesis of MS and associated symptoms. Here, we review the evidence for a connection between the endogenous opioid system and MS. We further explore the mechanisms by which opioidergic signaling might contribute to the pathophysiology and symptomatology of MS.
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Affiliation(s)
- Zoë Dworsky-Fried
- Department of Pharmacology, University of Alberta, Edmonton, AB, Canada
| | - Caylin I. Chadwick
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
| | - Bradley J. Kerr
- Department of Pharmacology, University of Alberta, Edmonton, AB, Canada
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
- Department of Anesthesiology and Pain Medicine, University of Alberta, Edmonton, AB, Canada
| | - Anna M. W. Taylor
- Department of Pharmacology, University of Alberta, Edmonton, AB, Canada
- Neuroscience and Mental Health Institute, University of Alberta, Edmonton, AB, Canada
- Department of Anesthesiology and Pain Medicine, University of Alberta, Edmonton, AB, Canada
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10
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Lin M, Deng K, Li Y, Wan J. Morphine enhances LPS-induced macrophage apoptosis through a PPARγ-dependent mechanism. Exp Ther Med 2021; 22:714. [PMID: 34007323 PMCID: PMC8120503 DOI: 10.3892/etm.2021.10146] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2020] [Accepted: 03/29/2021] [Indexed: 12/17/2022] Open
Abstract
Morphine has been widely used for the treatment of pain and extensive studies have revealed a regulatory role for morphine in cell apoptosis. However, the molecular mechanisms underlying morphine-mediated apoptosis remain to be fully elucidated. The present study aimed to investigate the effects of morphine on lipopolysaccharide (LPS)-induced bone marrow-derived macrophage (BMDM) apoptosis and to determine the role of the peroxisome proliferator-activated receptor (PPAR)γ signaling pathway in this process. BMDMs were isolated from BALB/c mice and stimulated with LPS. Hoechst 33342 staining and flow cytometric analysis were performed to evaluate the effects of morphine on LPS-induced apoptosis of BMDMs. Caspase activity assays were used to determine the involvement of the apoptosis pathway. The expression levels of caspase-3, caspase-8, caspase-9 and PPARγ were analyzed using western blotting. Finally, GW9662, a specific PPARγ antagonist, was used to determine whether the regulatory effects of morphine on LPS-induced BMDM apoptosis were PPARγ-dependent. The results of the present study revealed that morphine increased the apoptosis of LPS-stimulated BMDMs. Morphine upregulated the expression levels and activity of caspase-3 in LPS-stimulated BMDMs, but downregulated the expression levels and activity of caspase-8. Morphine treatment also upregulated LPS-induced PPARγ expression levels in BMDMs. Finally, the stimulatory effects of morphine on LPS-induced apoptosis and caspase-3/9 activation were markedly reduced by GW9662. In conclusion, the findings of the present study indicated that morphine significantly promoted LPS-induced BMDM apoptosis and caspase-3/9 activation. These results suggested that the intrinsic pathway of apoptosis may be involved in the proapoptotic effects of morphine on LPS-stimulated BMDMs, which may be dependent, at least partially, on PPARγ activation.
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Affiliation(s)
- Mingying Lin
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Keqiong Deng
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Ya Li
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
| | - Jing Wan
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 430071, P.R. China
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11
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Kuraitis D, Rosenthal N, Boh E, McBurney E. Macrophages in dermatology: pathogenic roles and targeted therapeutics. Arch Dermatol Res 2021; 314:133-140. [PMID: 33641015 DOI: 10.1007/s00403-021-02207-0] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Revised: 01/10/2021] [Accepted: 02/06/2021] [Indexed: 12/12/2022]
Abstract
The field of macrophage biology is rapidly growing. Recent studies have shifted focus from classic wound healing roles to newly identified roles in dermatologic pathology. These studies have identified pathogenic roles of macrophages in relatively common conditions, such as psoriasis, skin cancer, and cutaneous T-cell lymphoma. Selective depletion of these cells or their associated cytokines leads to improved clinical outcome. Herein, we review recent animal and human studies that have elucidated novel pathogenic roles of macrophages in conditions frequently encountered by dermatologists and discuss clinically relevant macrophage-targeted therapies.
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Affiliation(s)
- Drew Kuraitis
- Department of Dermatology, Tulane University, New Orleans, USA.
| | - Nadia Rosenthal
- The Jackson Laboratory, Bar Harbor, USA.,National Heart and Lung Institute and BHF Centre for Research Excellence, Imperial College London, London, UK
| | - Erin Boh
- Department of Dermatology, Tulane University, New Orleans, USA
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12
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Rodrigues RF, Martins CC, Rosa SG, Nogueira CW. CF3-substituted diselenide modulatory effects on oxidative stress, induced by single and repeated morphine administrations, in susceptible tissues of mice. Can J Physiol Pharmacol 2020; 99:761-767. [PMID: 33245668 DOI: 10.1139/cjpp-2020-0398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Studies reveal that oxidative stress is associated with adverse effects of long-term morphine treatment. The m-trifluoromethyl-diphenyl diselenide (CF3) is a multi-target organoselenium compound that has antioxidant properties in different experimental models. This study aimed to investigate the CF3 effects against redox imbalance in peripheral and central tissues of mice, after single or multiple morphine doses. Swiss male mice received a single dose of morphine (5 mg/kg, s.c.) and CF3 (10 mg/kg, i.g.), or morphine was repeatedly injected (5 mg/kg, s.c.) and CF3 (10 mg/kg, i.g.) administered twice daily for 7 days. Oxidative stress was determined in the hippocampus, liver, and kidney. CF3 reversed the increase in reactive species caused by single and multiple morphine doses in the peripheral tissues. CF3 increased hepatic non-protein thiol levels and the superoxide dismutase (SOD) activity decreased by a single morphine dose. CF3 reversed the reduction in SOD activity in the kidney of mice repeatedly exposed to morphine. The study demonstrates that peripheral tissues were more susceptible than the hippocampus to oxidative stress induced by morphine in mice. The results show that CF3 modulated parameters of oxidative stress modified by single and multiple morphine administrations in peripheral and central tissues of mice.
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Affiliation(s)
- Renata F Rodrigues
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, Brazil.,Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Carolina C Martins
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, Brazil.,Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Suzan G Rosa
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, Brazil.,Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, Brazil
| | - Cristina W Nogueira
- Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, Brazil.,Departamento de Bioquímica e Biologia Molecular, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, Brazil
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13
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Macáková K, Afonso R, Saso L, Mladěnka P. The influence of alkaloids on oxidative stress and related signaling pathways. Free Radic Biol Med 2019; 134:429-444. [PMID: 30703480 DOI: 10.1016/j.freeradbiomed.2019.01.026] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Revised: 01/16/2019] [Accepted: 01/21/2019] [Indexed: 12/19/2022]
Abstract
Alkaloids have always attracted scientific interest due to either their positive or negative effects on human beings. This review aims to summarize their antioxidant effects by both classical in vitro scavenging assay and at the cellular level. Since most in vitro studies used the DPPH (2,2-diphenyl-1-picrylhydrazyl) radical scavenging assay, the results from those studies are summed up in the first part of the article. In the second part, available data on the effect of alkaloids on NADPH-oxidase, the key enzyme for reactive oxygen species production, at the cellular level, are summarized. More than 130 alkaloids were tested by DPPH assay. However, due to methodological differences, a direct comparison is hardly possible. It can be at least concluded that some of them were either similar to or even more active than standard antioxidants and the number of aromatic hydroxyl groups seems to be the major determinant for the activity. The data on inhibition of NADPH-oxidase activity by alkaloids demonstrated that there is little relationship to the DPPH assay. The mechanism seems to be based on inhibition of synthesis, activation or translocation of NADPH-oxidase subunits. In some alkaloids, activation of the nuclear factor Nrf2 pathway was documented to be the grounds for inhibition of NADPH-oxidase. Interestingly, many alkaloids can behave both as anti-oxidants and pro-oxidants depending on conditions and pro-oxidation might be the reason for activation of Nrf2. Available data on other "antioxidant" transcription factors FOXOs and PPARs are also mentioned.
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Affiliation(s)
- Kateřina Macáková
- Department of Pharmaceutical Botany, Charles University, Faculty of Pharmacy in Hradec Králové, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic.
| | - Rita Afonso
- Department of Pharmacology and Toxicology, Charles University, Faculty of Pharmacy in Hradec Králové, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic.
| | - Luciano Saso
- Department of Physiology and Pharmacology "Vittorio Erspamer", Sapienza University of Rome, Piazzale Aldo Moro 5, Rome, Italy.
| | - Přemysl Mladěnka
- Department of Pharmacology and Toxicology, Charles University, Faculty of Pharmacy in Hradec Králové, Heyrovského 1203, 500 05 Hradec Králové, Czech Republic.
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14
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Hall MW. Immune Modulation in Pediatric Sepsis. J Pediatr Intensive Care 2019; 8:42-50. [PMID: 31073507 DOI: 10.1055/s-0038-1676607] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Accepted: 11/02/2018] [Indexed: 02/08/2023] Open
Abstract
The initial host immune response to sepsis in children is characterized by a proinflammatory surge that can be associated with fever, capillary leak, and organ dysfunction. There is, however, a concurrent anti-inflammatory response that results in hyporesponsiveness of innate and adaptive immune cells. When severe, this response is termed immunoparalysis and is known to be associated with prolonged organ dysfunction, increased risk for nosocomial infection, and death in septic adults and children. Sepsis-induced immune suppression can be defined in the laboratory by reduced whole blood ex vivo - stimulated cytokine production capacities, reduced expression of human leukocyte antigen (HLA)-DR on circulating monocytes, and reduced absolute cell counts. While anti-inflammatory therapies have largely been unsuccessful at improving outcomes from adult and pediatric sepsis, the use of immunostimulatory therapies such as granulocyte macrophage colony-stimulating factor (GM-CSF) in patients with sepsis-induced immunoparalysis shows promise. A greater understanding of the risk factors for immunoparalysis along with the development and execution of immunophenotype-specific clinical trials of strategies to optimize innate and adaptive immune function are needed to further improve outcomes in septic children.
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Affiliation(s)
- Mark W Hall
- Division of Critical Care Medicine, Nationwide Children's Hospital, Columbus, Ohio, United States.,The Research Institute at Nationwide Children's Hospital, Columbus, Ohio, United States
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15
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Methadone therapy modulate the dendritic cells of heroin addicts. Int Immunopharmacol 2019; 66:330-335. [DOI: 10.1016/j.intimp.2018.11.047] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 11/13/2018] [Accepted: 11/27/2018] [Indexed: 12/27/2022]
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Zhou N, Fu Z, Li H, Wang K. Ketamine, as adjuvant analgesics for patients with refractory cancer pain, does affect IL-2/IFN-γ expression of T cells in vitro?: A prospective, randomized, double-blind study. Medicine (Baltimore) 2017; 96:e6639. [PMID: 28422864 PMCID: PMC5406080 DOI: 10.1097/md.0000000000006639] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/06/2016] [Revised: 03/22/2017] [Accepted: 03/27/2017] [Indexed: 12/05/2022] Open
Abstract
BACKGROUND Ketamine has been used as an analgesic adjuvant with morphine in the treatment of refractory cancer pain recently. But both morphine and ketamine have been reported to produce a number of immunomodulatory effects. The current study was performed to assess whether the concentration of ketamine, as adjuvant analgesics for patient with refractory cancer pain, was related to its effect on T cells interleukin-2 (IL-2)/interferon-γ (IFN-γ) expression in vitro. METHODS Peripheral blood mononuclear cells (PBMCs) were isolated from venous blood of patients with refractory cancer pain over a Ficoll-Hypaque density gradient. T cells were isolated from by positive selection using anti-CD3 beads. T cells were then treated with vehicle (C group), morphine (200 ng/mL, M group), morphine (200 ng/mL), and different dose of ketamine (100, 200, 1000 ng/mL; MK1, MK5, MK10 group) for 24 hours before stimulation with anti-CD3 and anti-CD28. Then supernatant IL-2 and IFN-γ protein analysis, quantitative reverse transcription polymerase chain reaction (RT-PCR) for IL-2 and IFN-γ were done. RESULTS There were no significant difference of supernatant IL-2 and IFN-γ among C group, M group, and MK1 group, but the mRNA of M group and MK1 group were decreased compared with C group (P < .05). Compared with C group, both of the supernatant protein and the mRNA of MK5 group and MK10 group were all significantly decreased (P < .01). Compared with M group, both of the supernatant protein and the mRNA of MK5 group and MK10 group were all decreased (P < .05), while supernatant IL-2 and the mRNA of MK10 group were significantly decreased (P < .01). CONCLUSION In conclusion, we confirmed that just as morphine, ketamine dose-dependently suppressed IL-2 and IFN-γ of activated T lymphocyte of patients with refractory cancer pain in vitro, but the inhibitory action of low dose ketamine could be neglected.
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Affiliation(s)
- Naibao Zhou
- Department of Pain Management, Shandong Provincial Hospital Affiliated to Shandong University, Shandong University
- Department of Anesthesiology, Shandong Cancer Hospital Affiliated to Shandong University, Shandong Academy of Medical Sciences, Jinan, P.R. China
| | - Zhijian Fu
- Department of Pain Management, Shandong Provincial Hospital Affiliated to Shandong University, Shandong University
| | - Hao Li
- Department of Anesthesiology, Shandong Cancer Hospital Affiliated to Shandong University, Shandong Academy of Medical Sciences, Jinan, P.R. China
| | - Kaiguo Wang
- Department of Anesthesiology, Shandong Cancer Hospital Affiliated to Shandong University, Shandong Academy of Medical Sciences, Jinan, P.R. China
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Liu C, Kang Y, Zhou X, Yang Z, Gu J, Han C. Rhizoma smilacis glabrae protects rats with gentamicin-induced kidney injury from oxidative stress-induced apoptosis by inhibiting caspase-3 activation. JOURNAL OF ETHNOPHARMACOLOGY 2017; 198:122-130. [PMID: 28034658 DOI: 10.1016/j.jep.2016.12.034] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/15/2016] [Revised: 11/13/2016] [Accepted: 12/18/2016] [Indexed: 05/13/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Rhizoma smilacis glabrae (RSG), which is mild-natured and tastes sweet or bland, has pharmacological action of eliminating dampness, detoxifying, and ensuring that joints were healthy and supple in traditional Chinese medicine. AIM OF THE STUDY To discuss the protective effect of RSG on gentamicin (GM)-induced kidney injury in rats and its regulatory mechanisms of oxidative stress-induced apoptosis by inhibiting caspase-3 activation. MATERIALS AND METHODS A total of 40 Sprague-Dawley (SD) rats were randomly divided into 5 groups: control group, model group, and RSG low, middle, and high dose groups (0.75,1.5,3gkg-1). Six hours after intramuscular GM injections, rats in the model group were given distilled water by intragastric administration, and rats in the 3 RSG intervention groups were given different dosages of RSG water-extracts. Twenty-four hours after the last administration, blood and kidney samples were collected to test for biochemical indexes of kidney injury, oxidative stress, histopathological defects, apoptosis rate, and caspase-3 protein expression to assess the protective effect of RSG water-extracts against GM-induced kidney injury. RESULTS Compared with the model group, serum TP and ALB levels were significantly higher (P<0.05), and BUN, CRE, and UA levels were significantly lower (P<0.05) in the 3 RSG intervention groups. In kidney tissues, SOD, CAT, and GSH levels increased significantly (P<0.05), while MDA level decreased significantly (P<0.05). Total apoptosis rate dropped markedly (P<0.01), and the protein expressions of caspase-3 increased, while expressions of activated caspase-3 decreased. Histopathological analysis showed shrinkage of kidney cells reduced with appearance of complete kidney structure and decrease in activated caspase-3 expressions in impaired renal tubules decreased. Among the 3 RSG intervention groups, the middle dose group (1.5gkg-1) showed the best protective effect. CONCLUSIONS RSG water-extracts had protective effects against GM-induced kidney injury in rats, and its mechanism of action was related to oxidative stress-induced apoptosis by inhibiting caspase-3 activation.
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Affiliation(s)
- Cuiyan Liu
- College of Animal Science and Technology, Anhui Agricultural University, 130 West Changjiang Road, Shushan District, Anhui 230036, PR China
| | - Youxi Kang
- College of Animal Science and Technology, Anhui Agricultural University, 130 West Changjiang Road, Shushan District, Anhui 230036, PR China
| | - Xiuhong Zhou
- Biotechnology Center, Anhui Agricultural University, 130 West Changjiang Road, Shushan District, Heifei, Anhui 230036, PR China
| | - Zisheng Yang
- College of Animal Science and Technology, Anhui Agricultural University, 130 West Changjiang Road, Shushan District, Anhui 230036, PR China
| | - Jingang Gu
- Institute of Agricultural Resources and Regional Planning, Chinese Academy of Agricultural Sciences, Beijing 100081, PR China.
| | - Chunyang Han
- College of Animal Science and Technology, Anhui Agricultural University, 130 West Changjiang Road, Shushan District, Anhui 230036, PR China.
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18
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Hook MA, Woller SA, Bancroft E, Aceves M, Funk MK, Hartman J, Garraway SM. Neurobiological Effects of Morphine after Spinal Cord Injury. J Neurotrauma 2016; 34:632-644. [PMID: 27762659 DOI: 10.1089/neu.2016.4507] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Opioids and non-steroidal anti-inflammatory drugs are used commonly to manage pain in the early phase of spinal cord injury (SCI). Despite its analgesic efficacy, however, our studies suggest that intrathecal morphine undermines locomotor recovery and increases lesion size in a rodent model of SCI. Similarly, intravenous (IV) morphine attenuates locomotor recovery. The current study explores whether IV morphine also increases lesion size after a spinal contusion (T12) injury and quantifies the cell types that are affected by early opioid administration. Using an experimenter-administered escalating dose of IV morphine across the first seven days post-injury, we quantified the expression of neuron, astrocyte, and microglial markers at the injury site. SCI decreased NeuN expression relative to shams. In subjects with SCI treated with IV morphine, virtually no NeuN+ cells remained across the rostral-caudal extent of the lesion. Further, whereas SCI per se increased the expression of astrocyte and microglial markers (glial fibrillary acidic protein and OX-42, respectively), morphine treatment decreased the expression of these markers. These cellular changes were accompanied by attenuation of locomotor recovery (Basso, Beattie, Bresnahan scores), decreased weight gain, and the development of opioid-induced hyperalgesia (increased tactile reactivity) in morphine-treated subjects. These data suggest that morphine use is contraindicated in the acute phase of a spinal injury. Faced with a lifetime of intractable pain, however, simply removing any effective analgesic for the management of SCI pain is not an ideal option. Instead, these data underscore the critical need for further understanding of the molecular pathways engaged by conventional medications within the pathophysiological context of an injury.
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Affiliation(s)
- Michelle A Hook
- 1 Texas A&M University Institute for Neuroscience, Texas A&M University , College Station, Texas.,2 Department of Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center , Bryan, Texas
| | - Sarah A Woller
- 3 Department of Anesthesiology, University of California , San Diego, California
| | - Eric Bancroft
- 2 Department of Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center , Bryan, Texas
| | - Miriam Aceves
- 1 Texas A&M University Institute for Neuroscience, Texas A&M University , College Station, Texas.,2 Department of Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center , Bryan, Texas
| | - Mary Katherine Funk
- 2 Department of Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center , Bryan, Texas
| | - John Hartman
- 2 Department of Neuroscience and Experimental Therapeutics, Texas A&M Health Science Center , Bryan, Texas
| | - Sandra M Garraway
- 4 Department of Physiology, Emory University School of Medicine , Atlanta, Georgia
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19
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Cai Y, Yang L, Hu G, Chen X, Niu F, Yuan L, Liu H, Xiong H, Arikkath J, Buch S. Regulation of morphine-induced synaptic alterations: Role of oxidative stress, ER stress, and autophagy. J Cell Biol 2016; 215:245-258. [PMID: 27810915 PMCID: PMC5084649 DOI: 10.1083/jcb.201605065] [Citation(s) in RCA: 69] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2016] [Accepted: 09/26/2016] [Indexed: 01/16/2023] Open
Abstract
Cai et al. demonstrate that morphine exposure dysregulates synaptic balance in the hippocampus. This effect involves a novel pathway involving ROS, ER stress, and autophagy and can be rescued by PDGF. Our findings suggest that morphine dysregulates synaptic balance in the hippocampus, a key center for learning and memory, via a novel signaling pathway involving reactive oxygen species (ROS), endoplasmic reticulum (ER) stress, and autophagy. We demonstrate in this study that exposure of morphine to hippocampal neurons leads to a reduction in excitatory synapse densities with a concomitant enhancement of inhibitory synapse densities via activation of the μ opioid receptor. Furthermore, these effects of morphine are mediated by up-regulation of intracellular ROS from NADPH oxidase, leading, in turn, to sequential induction of ER stress and autophagy. The detrimental effects of morphine on synaptic densities were shown to be reversed by platelet-derived growth factor (PDGF), a pleiotropic growth factor that has been implicated in neuroprotection. These results identify a novel cellular mechanism involved in morphine-mediated synaptic alterations with implications for therapeutic interventions by PDGF.
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Affiliation(s)
- Yu Cai
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198
| | - Lu Yang
- School of Medicine, University of Electronic Science and Technology of China, Chengdu, Sichuan 610051, China
| | - Guoku Hu
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198
| | - Xufeng Chen
- Department of Emergence, The First Affiliated Hospital of Nanjing Medical University, Nanjing, Jiangsu 210029, China
| | - Fang Niu
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198
| | - Li Yuan
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198
| | - Han Liu
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198
| | - Huangui Xiong
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198
| | - Jyothi Arikkath
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198 .,Developmental Neuroscience, Munroe-Meyer Institute, University of Nebraska Medical Center, Omaha, NE 68198
| | - Shilpa Buch
- Department of Pharmacology and Experimental Neuroscience, University of Nebraska Medical Center, Omaha, NE 68198
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20
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21
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Chandel N, Ayasolla KS, Lan X, Sultana-Syed M, Chawla A, Lederman R, Vethantham V, Saleem MA, Chander PN, Malhotra A, Singhal PC. Epigenetic Modulation of Human Podocyte Vitamin D Receptor in HIV Milieu. J Mol Biol 2015; 427:3201-3215. [PMID: 26210663 PMCID: PMC4586951 DOI: 10.1016/j.jmb.2015.07.011] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Revised: 07/09/2015] [Accepted: 07/14/2015] [Indexed: 01/08/2023]
Abstract
HIV (human immunodeficiency virus) has been reported to induce podocyte injury through down regulation of vitamin D receptor (VDR) and activation of renin angiotensin system; however, the involved mechanism is not clear. Since HIV has been reported to modulate gene expression via epigenetic phenomena, we asked whether epigenetic factors contribute to down regulation of VDR. Kidney cells in HIV transgenic mice and HIV-infected podocytes (HIV/HPs) displayed enhanced expression of SNAIL, a repressor of VDR. To elucidate the mechanism, we studied the effect of HIV on expression of molecules involved in SNAIL repressor complex formation and demonstrated that HIV enhances expression of the histone deacetylase HDAC1 and DNA methyl transferases DNMT3b and DNMT1. 293T cells, when stably transfected with SNAIL (SNAIL/293T), displayed suppressed transcription and translation of VDR. In SNAIL/293T cells, co-immunoprecipitation studies revealed the association of HDAC1, DNMT3b, DNMT1, and mSin3A with SNAIL. Chromatin immunoprecipitation experiments confirmed the presence of the SNAIL repressor complex at the VDR promoter. Consistent with the enhanced DNA methyl transferase expression in HIV/HPs, there was an increased CpG methylation at the VDR promoter. Chromatin immunoprecipitation assay confirmed occurrence of H3K4 trimethylation on SNAIL promoter. Neither a VDR agonist (VDA) nor an HDAC inhibitor (HDACI) nor a demethylating agent (DAC) individually could optimally up regulate VDR in HIV milieu. However, VDA and HDACI when combined were successful in de-repressing VDR expression. Our findings demonstrate that SNAIL recruits multiple chromatin enzymes to form a repressor complex in HIV milieu that down regulates VDR expression.
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Affiliation(s)
- Nirupama Chandel
- Center of Immunology and Inflammation, Feinstein Institute for Medical Research, Manhasset, NY 11030, USA; Hofstra North Shore LIJ Medical School, Hempstead, NY 11549-1000, USA
| | - Kameshwar S Ayasolla
- Center of Immunology and Inflammation, Feinstein Institute for Medical Research, Manhasset, NY 11030, USA; Hofstra North Shore LIJ Medical School, Hempstead, NY 11549-1000, USA
| | - Xiqian Lan
- Center of Immunology and Inflammation, Feinstein Institute for Medical Research, Manhasset, NY 11030, USA; Hofstra North Shore LIJ Medical School, Hempstead, NY 11549-1000, USA
| | - Maria Sultana-Syed
- Center of Immunology and Inflammation, Feinstein Institute for Medical Research, Manhasset, NY 11030, USA; Hofstra North Shore LIJ Medical School, Hempstead, NY 11549-1000, USA
| | - Amrita Chawla
- Center of Immunology and Inflammation, Feinstein Institute for Medical Research, Manhasset, NY 11030, USA; Hofstra North Shore LIJ Medical School, Hempstead, NY 11549-1000, USA
| | - Rivka Lederman
- Center of Immunology and Inflammation, Feinstein Institute for Medical Research, Manhasset, NY 11030, USA; Hofstra North Shore LIJ Medical School, Hempstead, NY 11549-1000, USA
| | - Vasupradha Vethantham
- Center of Immunology and Inflammation, Feinstein Institute for Medical Research, Manhasset, NY 11030, USA; Hofstra North Shore LIJ Medical School, Hempstead, NY 11549-1000, USA
| | - Moin A Saleem
- Renal Academic Unit, University of Bristol, City of Bristol BS8 1TH, United Kingdom
| | - Praveen N Chander
- Department of Pathology, New York Medical College, Valhalla, NY 10595, USA
| | - Ashwani Malhotra
- Center of Immunology and Inflammation, Feinstein Institute for Medical Research, Manhasset, NY 11030, USA; Hofstra North Shore LIJ Medical School, Hempstead, NY 11549-1000, USA
| | - Pravin C Singhal
- Center of Immunology and Inflammation, Feinstein Institute for Medical Research, Manhasset, NY 11030, USA; Hofstra North Shore LIJ Medical School, Hempstead, NY 11549-1000, USA.
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22
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Samikkannu T, Ranjith D, Rao KVK, Atluri VSR, Pimentel E, El-Hage N, Nair MPN. HIV-1 gp120 and morphine induced oxidative stress: role in cell cycle regulation. Front Microbiol 2015; 6:614. [PMID: 26157430 PMCID: PMC4477635 DOI: 10.3389/fmicb.2015.00614] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2015] [Accepted: 06/03/2015] [Indexed: 01/20/2023] Open
Abstract
HIV infection and illicit drugs are known to induce oxidative stress and linked with severity of viral replication, disease progression, impaired cell cycle regulation and neurodegeneration. Studies have shown that morphine accelerates HIV infection and disease progression mediated by Reactive oxygen species (ROS). Oxidative stress impact redox balance and ROS production affect cell cycle regulation. However, the role of morphine in HIV associated acceleration of oxidative stress and its link to cell cycle regulation and neurodegeneration has not been elucidated. The aim of present study is to elucidate the mechanism of oxidative stress induced glutathione synthases (GSS), super oxide dismutase (SOD), and glutathione peroxidase (GPx) impact cell cycle regulated protein cyclin-dependent kinase 1, cell division cycle 2 (CDK-1/CDC-2), cyclin B, and cell division cycle 25C (CDC-25C) influencing neuronal dysfunction by morphine co-morbidity with HIV-1 gp120. It was observed that redox imbalance inhibited the GSS, GPx and increased SOD which, subsequently inhibited CDK-1/CDC-2 whereas cyclin B and CDC-25C significantly up regulated in HIV-1 gp120 with morphine compared to either HIV-1 gp120 or morphine treated alone in human microglial cell line. These results suggest that HIV positive morphine users have increased levels of oxidative stress and effect of cell cycle machinery, which may cause the HIV infection and disease progression.
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Affiliation(s)
- Thangavel Samikkannu
- Department of Immunology, Institute of NeuroImmune Pharmacology, College of Medicine, Florida International University , Miami, FL, USA
| | - Deepa Ranjith
- Department of Immunology, Institute of NeuroImmune Pharmacology, College of Medicine, Florida International University , Miami, FL, USA
| | - Kurapati V K Rao
- Department of Immunology, Institute of NeuroImmune Pharmacology, College of Medicine, Florida International University , Miami, FL, USA
| | - Venkata S R Atluri
- Department of Immunology, Institute of NeuroImmune Pharmacology, College of Medicine, Florida International University , Miami, FL, USA
| | - Emely Pimentel
- Department of Immunology, Institute of NeuroImmune Pharmacology, College of Medicine, Florida International University , Miami, FL, USA
| | - Nazira El-Hage
- Department of Immunology, Institute of NeuroImmune Pharmacology, College of Medicine, Florida International University , Miami, FL, USA
| | - Madhavan P N Nair
- Department of Immunology, Institute of NeuroImmune Pharmacology, College of Medicine, Florida International University , Miami, FL, USA
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23
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Trivedi MS, Deth R. Redox-based epigenetic status in drug addiction: a potential contributor to gene priming and a mechanistic rationale for metabolic intervention. Front Neurosci 2015; 8:444. [PMID: 25657617 PMCID: PMC4302946 DOI: 10.3389/fnins.2014.00444] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2014] [Accepted: 12/16/2014] [Indexed: 12/26/2022] Open
Abstract
Alcohol and other drugs of abuse, including psychostimulants and opioids, can induce epigenetic changes: a contributing factor for drug addiction, tolerance, and associated withdrawal symptoms. DNA methylation is a major epigenetic mechanism and it is one of more than 200 methylation reactions supported by methyl donor S-adenosylmethionine (SAM). Levels of SAM are controlled by cellular redox status via the folate and vitamin B12-dependent enzyme methionine synthase (MS). For example, under oxidative conditions MS is inhibited, diverting its substrate homocysteine (HCY) to the trans sulfuration pathway. Alcohol, dopamine, and morphine, can alter intracellular levels of glutathione (GSH)-based cellular redox status, subsequently affecting SAM levels and DNA methylation status. Here, existing evidence is presented in a coherent manner to propose a novel hypothesis implicating the involvement of redox-based epigenetic changes in drug addiction. Further, we discuss how a “gene priming” phenomenon can contribute to the maintenance of redox and methylation status homeostasis under various stimuli including drugs of abuse. Additionally, a new mechanistic rationale for the use of metabolic interventions/redox-replenishers as symptomatic treatment of alcohol and other drug addiction and associated withdrawal symptoms is also provided. Hence, the current review article strengthens the hypothesis that neuronal metabolism has a critical bidirectional coupling with epigenetic changes in drug addiction exemplified by the link between redox-based metabolic changes and resultant epigenetic consequences under the effect of drugs of abuse.
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Affiliation(s)
- Malav S Trivedi
- Department of Pharmaceutical Sciences, Northeastern University Boston, MA, USA
| | - Richard Deth
- Department of Pharmaceutical Sciences, Northeastern University Boston, MA, USA
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Trivedi MS, Shah JS, Al-Mughairy S, Hodgson NW, Simms B, Trooskens GA, Van Criekinge W, Deth RC. Food-derived opioid peptides inhibit cysteine uptake with redox and epigenetic consequences. J Nutr Biochem 2014; 25:1011-8. [PMID: 25018147 DOI: 10.1016/j.jnutbio.2014.05.004] [Citation(s) in RCA: 68] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2014] [Revised: 04/07/2014] [Accepted: 05/05/2014] [Indexed: 12/17/2022]
Abstract
Dietary interventions like gluten-free and casein-free diets have been reported to improve intestinal, autoimmune and neurological symptoms in patients with a variety of conditions; however, the underlying mechanism of benefit for such diets remains unclear. Epigenetic programming, including CpG methylation and histone modifications, occurring during early postnatal development can influence the risk of disease in later life, and such programming may be modulated by nutritional factors such as milk and wheat, especially during the transition from a solely milk-based diet to one that includes other forms of nutrition. The hydrolytic digestion of casein (a major milk protein) and gliadin (a wheat-derived protein) releases peptides with opioid activity, and in the present study, we demonstrate that these food-derived proline-rich opioid peptides modulate cysteine uptake in cultured human neuronal and gastrointestinal (GI) epithelial cells via activation of opioid receptors. Decreases in cysteine uptake were associated with changes in the intracellular antioxidant glutathione and the methyl donor S-adenosylmethionine. Bovine and human casein-derived opioid peptides increased genome-wide DNA methylation in the transcription start site region with a potency order similar to their inhibition of cysteine uptake. Altered expression of genes involved in redox and methylation homeostasis was also observed. These results illustrate the potential of milk- and wheat-derived peptides to exert antioxidant and epigenetic changes that may be particularly important during the postnatal transition from placental to GI nutrition. Differences between peptides derived from human and bovine milk may contribute to developmental differences between breastfed and formula-fed infants. Restricted antioxidant capacity, caused by wheat- and milk-derived opioid peptides, may predispose susceptible individuals to inflammation and systemic oxidation, partly explaining the benefits of gluten-free or casein-free diets.
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Affiliation(s)
- Malav S Trivedi
- Department of Pharmaceutical Sciences, Northeastern University, Boston, MA 02115, USA
| | - Jayni S Shah
- Department of Pharmaceutical Sciences, Northeastern University, Boston, MA 02115, USA
| | - Sara Al-Mughairy
- Department of Pharmaceutical Sciences, Northeastern University, Boston, MA 02115, USA
| | - Nathaniel W Hodgson
- Department of Pharmaceutical Sciences, Northeastern University, Boston, MA 02115, USA
| | - Benjamin Simms
- Department of Pharmaceutical Sciences, Northeastern University, Boston, MA 02115, USA
| | - Geert A Trooskens
- Department of Mathematical Modelling, Statistics and Bioinformatics, Faculty of Bioscience Engineering, Ghent University, Ghent 9000, Belgium
| | - Wim Van Criekinge
- Department of Mathematical Modelling, Statistics and Bioinformatics, Faculty of Bioscience Engineering, Ghent University, Ghent 9000, Belgium
| | - Richard C Deth
- Department of Pharmaceutical Sciences, Northeastern University, Boston, MA 02115, USA.
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Skrabalova J, Drastichova Z, Novotny J. Morphine as a Potential Oxidative Stress-Causing Agent. MINI-REV ORG CHEM 2013; 10:367-372. [PMID: 24376392 PMCID: PMC3871421 DOI: 10.2174/1570193x113106660031] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2013] [Revised: 05/03/2013] [Accepted: 05/03/2013] [Indexed: 12/21/2022]
Abstract
Morphine exhibits important pharmacological effects for which it has been used in medical practice for quite a long time. However, it has a high addictive potential and can be abused. Long-term use of this drug can be connected with some pathological consequences including neurotoxicity and neuronal dysfunction, hepatotoxicity, kidney dysfunction, oxidative stress and apoptosis. Therefore, most studies examining the impact of morphine have been aimed at determining the effects induced by chronic morphine exposure in the brain, liver, cardiovascular system and macrophages. It appears that different tissues may respond to morphine diversely and are distinctly susceptible to oxidative stress and subsequent oxidative damage of biomolecules. Importantly, production of reactive oxygen/nitrogen species induced by morphine, which have been observed under different experimental conditions, can contribute to some pathological processes, degenerative diseases and organ dysfunctions occurring in morphine abusers or morphine-treated patients. This review attempts to provide insights into the possible relationship between morphine actions and oxidative stress.
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Affiliation(s)
- Jitka Skrabalova
- Department of Physiology, Faculty of Science, Charles University in Prague, Czech Republic
| | - Zdenka Drastichova
- Department of Physiology, Faculty of Science, Charles University in Prague, Czech Republic
| | - Jiri Novotny
- Department of Physiology, Faculty of Science, Charles University in Prague, Czech Republic
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Campbell LA, Avdoshina V, Rozzi S, Mocchetti I. CCL5 and cytokine expression in the rat brain: differential modulation by chronic morphine and morphine withdrawal. Brain Behav Immun 2013; 34:130-40. [PMID: 23968971 PMCID: PMC3795805 DOI: 10.1016/j.bbi.2013.08.006] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2013] [Revised: 08/12/2013] [Accepted: 08/13/2013] [Indexed: 01/23/2023] Open
Abstract
Opioids have been shown to influence the immune system and to promote the expression of pro-inflammatory cytokines in the central nervous system. However, recent data have shown that activation of opioid receptors increases the expression and release of the neuroprotective chemokine CCL5 from astrocytes in vitro. To further define the interaction between CCL5 and inflammation in response to opioids, we have examined the effect of chronic morphine and morphine withdrawal on the in vivo expression of CCL5 as well as of pro-inflammatory cytokines interleukin-1β (IL-1β) and tumor necrosis factor-α (TNF-α). Rats undergoing a chronic morphine paradigm (10 mg/kg increasing to 30 mg/kg, twice a day for 5 days) showed a twofold increase of CCL5 protein and mRNA within the cortex and striatum. No changes were observed in the levels of IL-1β and TNF-α. Naltrexone blocked the effect of morphine. A chronic morphine paradigm with no escalating doses (10 mg/kg, twice a day) did not alter CCL5 levels compared to saline-treated animals. On the contrary, rats undergoing spontaneous morphine withdrawal exhibited lower levels of CCL5 within the cortex as well as increased levels of pro-inflammatory cytokines and Iba-1 positive cells than saline-treated rats. Overall, these data suggest that morphine withdrawal may promote cytokines and other inflammatory responses that have the potential of exacerbating neuronal damage.
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Affiliation(s)
- Lee A. Campbell
- Department of Pharmacology and Physiology, Georgetown University Medical Center, Washington DC 20057
| | - Valeriya Avdoshina
- Department of Neuroscience, Georgetown University Medical Center, Washington DC 20057
| | - Summer Rozzi
- Interdisciplinary Program of Neuroscience, Laboratory of Preclinical Neurobiology, Georgetown University Medical Center, Washington DC 20057
| | - Italo Mocchetti
- Department of Pharmacology and Physiology, Georgetown University Medical Center, Washington DC 20057,Department of Neuroscience, Georgetown University Medical Center, Washington DC 20057
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Mei B, Wang T, Wang Y, Xia Z, Irwin MG, Wong GT. High dose remifentanil increases myocardial oxidative stress and compromises remifentanil infarct-sparing effects in rats. Eur J Pharmacol 2013; 718:484-92. [DOI: 10.1016/j.ejphar.2013.07.030] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Revised: 07/15/2013] [Accepted: 07/16/2013] [Indexed: 01/08/2023]
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Singh VP, Singh N, Jaggi AS. A review on renal toxicity profile of common abusive drugs. THE KOREAN JOURNAL OF PHYSIOLOGY & PHARMACOLOGY : OFFICIAL JOURNAL OF THE KOREAN PHYSIOLOGICAL SOCIETY AND THE KOREAN SOCIETY OF PHARMACOLOGY 2013; 17:347-57. [PMID: 23946695 PMCID: PMC3741492 DOI: 10.4196/kjpp.2013.17.4.347] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/09/2013] [Revised: 06/25/2013] [Accepted: 07/14/2013] [Indexed: 12/22/2022]
Abstract
Drug abuse has become a major social problem of the modern world and majority of these abusive drugs or their metabolites are excreted through the kidneys and, thus, the renal complications of these drugs are very common. Morphine, heroin, cocaine, nicotine and alcohol are the most commonly abused drugs, and their use is associated with various types of renal toxicity. The renal complications include a wide range of glomerular, interstitial and vascular diseases leading to acute or chronic renal failure. The present review discusses the renal toxicity profile and possible mechanisms of commonly abused drugs including morphine, heroin, cocaine, nicotine, caffeine and alcohol.
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Affiliation(s)
- Varun Parkash Singh
- Department of Pharmaceutical Sciences and Drug Research, Punjabi University, Patiala-147002, India
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Drastichova Z, Skrabalova J, Jedelsky P, Neckar J, Kolar F, Novotny J. Global changes in the rat heart proteome induced by prolonged morphine treatment and withdrawal. PLoS One 2012; 7:e47167. [PMID: 23056601 PMCID: PMC3467212 DOI: 10.1371/journal.pone.0047167] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2012] [Accepted: 09/10/2012] [Indexed: 12/18/2022] Open
Abstract
Morphine belongs among the most commonly used opioids in medical practice due to its strong analgesic effects. However, sustained administration of morphine leads to the development of tolerance and dependence and may cause long-lasting alterations in nervous tissue. Although proteomic approaches enabled to reveal changes in multiple gene expression in the brain as a consequence of morphine treatment, there is lack of information about the effect of this drug on heart tissue. Here we studied the effect of 10-day morphine exposure and subsequent drug withdrawal (3 or 6 days) on the rat heart proteome. Using the iTRAQ technique, we identified 541 proteins in the cytosol, 595 proteins in the plasma membrane-enriched fraction and 538 proteins in the mitochondria-enriched fraction derived from the left ventricles. Altogether, the expression levels of 237 proteins were altered by morphine treatment or withdrawal. The majority of changes (58 proteins) occurred in the cytosol after a 3-day abstinence period. Significant alterations were found in the expression of heat shock proteins (HSP27, α-B crystallin, HSP70, HSP10 and HSP60), whose levels were markedly up-regulated after morphine treatment or withdrawal. Besides that morphine exposure up-regulated MAPK p38 (isoform CRA_b) which is a well-known up-stream mediator of phosphorylation and activation of HSP27 and α-B crystallin. Whereas there were no alterations in the levels of proteins involved in oxidative stress, several changes were determined in the levels of pro- and anti-apoptotic proteins. These data provide a complex view on quantitative changes in the cardiac proteome induced by morphine treatment or withdrawal and demonstrate great sensitivity of this organ to morphine.
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Affiliation(s)
- Zdenka Drastichova
- Department of Physiology, Faculty of Science, Charles University in Prague, Prague, Czech Republic
| | - Jitka Skrabalova
- Department of Physiology, Faculty of Science, Charles University in Prague, Prague, Czech Republic
| | - Petr Jedelsky
- Department of Cell Biology, Faculty of Science, Charles University in Prague, Prague, Czech Republic
| | - Jan Neckar
- Department of Developmental Cardiology, Institute of Physiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Frantisek Kolar
- Department of Developmental Cardiology, Institute of Physiology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Jiri Novotny
- Department of Physiology, Faculty of Science, Charles University in Prague, Prague, Czech Republic
- * E-mail:
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Ninković J, Roy S. Morphine decreases bacterial phagocytosis by inhibiting actin polymerization through cAMP-, Rac-1-, and p38 MAPK-dependent mechanisms. THE AMERICAN JOURNAL OF PATHOLOGY 2012; 180:1068-1079. [PMID: 22248582 DOI: 10.1016/j.ajpath.2011.11.034] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2011] [Revised: 11/08/2011] [Accepted: 11/14/2011] [Indexed: 11/18/2022]
Abstract
Morphine increases the susceptibility to opportunistic infection by attenuating bacterial clearance through inhibition of Fcγ receptor (FcgR)-mediated phagocytosis. Mechanisms by which morphine inhibits this process remain to be investigated. Actin polymerization is essential for FcgR-mediated internalization; therefore, disruption of the signaling mechanisms involved in this process is detrimental to the phagocytic ability of macrophages. To our knowledge, this study is the first to propose the modulation of actin polymerization and upstream signaling effectors [cAMP, Rac1-GTP, and p38 mitogen-activated protein kinase (MAPK)] as key mechanisms by which morphine leads to inhibition of pathogen clearance. Our results indicate that long-term morphine treatment in vitro and in vivo, through activation of the μ-opioid receptor, leads to an increase in intracellular cAMP, activation of protein kinase A, and inhibition of Rac1-GTPase and p38 MAPK, thereby attenuating actin polymerization and reducing membrane ruffling. Furthermore, because of long-term morphine treatment, FcgR-mediated internalization of opsonized dextran beads is also reduced. Morphine's inhibition of Rac1-GTPase activation is abolished in J774 macrophages transfected with constitutively active pcDNA3-EGFP-Rac1-Q61L plasmid. Dibutyryl-cAMP inhibits, whereas H89 restores, activation of Rac-GTPase and abolishes morphine's inhibitory effect, implicating cAMP as the key effector in morphine's modulation of actin polymerization. These findings indicate that long-term morphine treatment, by increasing intracellular cAMP and activating protein kinase A, leads to inhibition of Rac1-GTPase and p38 MAPK, causing attenuation of actin polymerization, FcgR-mediated phagocytosis, and decreased bacterial clearance.
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Affiliation(s)
- Jana Ninković
- Department of Pharmacology, University of Minnesota, School of Medicine, Minneapolis, Minnesota
| | - Sabita Roy
- Department of Pharmacology, University of Minnesota, School of Medicine, Minneapolis, Minnesota; Department of Surgery, University of Minnesota, School of Medicine, Minneapolis, Minnesota.
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Abstract
As the armamentarium for sedation in the critically ill expands, opportunities will develop to modulate the immune responses of patients by way of the direct immune and neural-immune interactions of the sedatives. Control of autonomic activity through the use of appropriate sedation may be critical in this matter. Likewise analgesic-based sedation, with increased opioid dosage, may not prove beneficial in the setting of infection; whether avoidance of morphine in preference for a fentanyl derivative will help is unclear. However, as the immune effects seem dependent on the m receptor, it is improbable that a significant difference would be uncovered. Similarly, the present evidence suggests benzodiazepines are deleterious in infection; further studies are required urgently to evaluate this evidence. As an alternative to benzodiazepine-based sedation, dexmedetomidine has shown a remarkable 70% mortality benefit in a small secondary analysis of septic patients from the MENDS trial. Further powered clinical studies should now be undertaken to investigate the potential benefit of the α2-adrenoceptor agonist in this setting, with comparisons with propofol.
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Affiliation(s)
- Robert D Sanders
- Magill Department of Anaesthetics, Intensive Care and Pain Medicine, Imperial College London, Chelsea and Westminster Hospital, 369 Fulham Road, SW10 9NH, London, UK.
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Deb I, Das S. Thyroid hormones protect astrocytes from morphine-induced apoptosis by regulating nitric oxide and pERK 1/2 pathways. Neurochem Int 2011; 58:861-71. [DOI: 10.1016/j.neuint.2011.01.001] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2010] [Revised: 12/16/2010] [Accepted: 01/03/2011] [Indexed: 12/22/2022]
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Kovatsi L, Njau S, Nikolaou K, Topouridou K, Papamitsou T, Koliakos G. Evaluation of prooxidant-antioxidant balance in chronic heroin users in a single assay: an identification criterion for antioxidant supplementation. THE AMERICAN JOURNAL OF DRUG AND ALCOHOL ABUSE 2010; 36:228-32. [PMID: 20560843 DOI: 10.3109/00952990.2010.495438] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
BACKGROUND Opiate abuse has been linked to oxidative stress, through the separate evaluation of oxidants and antioxidants. OBJECTIVES To determine prooxidant-antioxidant balance (PAB) in chronic heroin users in a single assay, easily applied in a clinical setting. Specifically, to examine whether PAB values correlate with the duration of abuse or with the presence of anti-HCV antibodies. METHODS Sixty-four chronic heroin users - 34 cases and 30 controls - participated in this study. PAB was determined by an Enzyme-linked immunosorbent assay (ELISA) method, developed by members of the study group. RESULTS In heroin users, oxidative balance was disrupted in favor of prooxidants. There was no correlation of PAB values with the duration of abuse or with the presence of anti-Hepatitis C virus (HCV) antibodies. CONCLUSIONS Chronic heroin users can benefit from an antioxidant therapy, and the method currently presented can be used as an identification criterion.
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Affiliation(s)
- Leda Kovatsi
- Laboratory of Forensic Medicine and Toxicology, School of Medicine, Aristotle University of Thessaloniki, Thessaloniki, Greece.
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Deroee AF, Nezami BG, Mehr SE, Hosseini R, Salmasi AH, Talab SS, Jahanzad I, Dehpour AR. Cholestasis induced nephrotoxicity: The role of endogenous opioids. Life Sci 2010; 86:488-92. [DOI: 10.1016/j.lfs.2010.02.005] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2009] [Revised: 02/02/2010] [Accepted: 02/02/2010] [Indexed: 01/24/2023]
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Nyberg F. The role of the somatotrophic axis in neuroprotection and neuroregeneration of the addictive brain. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2010; 88:399-427. [PMID: 19897085 DOI: 10.1016/s0074-7742(09)88014-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Early studies have shown that the abuse of alcohol, central stimulants, and opiates such as heroin destroys brain cells, reducing attention span and memory. However, new research has suggested that there may be a way to regain some of the lost attention and recall. It has recently been shown that brain cells targeted for early death by continued opiate use can be salvaged by injections of synthetic human growth hormone (GH). GH is a polypeptide hormone, normally secreted by the anterior pituitary gland, which stimulates cell growth and controls body metabolism. Recombinant human GH is currently used in replacement therapy to alleviate the symptoms of adults and children with GH deficiency syndrome. The recent observation that GH can reverse morphine-induced cell damage could open the door to new ways of treating and preventing damage from the abuse of opiates in addicts and also of treating cell damage induced by alcohol and central stimulants. This article reviews current knowledge of the somatotrophic axis, including GH and insulin-like growth factor-1 (IGF-1), in the brain and also discusses the potential use of GH/IGF-1 as agents for treatment of brain pathology in addictive diseases.
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Affiliation(s)
- Fred Nyberg
- Department of Pharmaceutical Biosciences, Division of Biological Research on Drug Dependence, Uppsala University, S-75124 Uppsala, Sweden
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Watkins LR, Hutchinson MR, Rice KC, Maier SF. The "toll" of opioid-induced glial activation: improving the clinical efficacy of opioids by targeting glia. Trends Pharmacol Sci 2009; 30:581-91. [PMID: 19762094 DOI: 10.1016/j.tips.2009.08.002] [Citation(s) in RCA: 284] [Impact Index Per Article: 18.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2009] [Revised: 07/27/2009] [Accepted: 08/03/2009] [Indexed: 12/24/2022]
Abstract
Glial activation participates in the mediation of pain including neuropathic pain, due to release of neuroexcitatory, proinflammatory products. Glial activation is now known to occur in response to opioids as well. Opioid-induced glial activation opposes opioid analgesia and enhances opioid tolerance, dependence, reward and respiratory depression. Such effects can occur, not via classical opioid receptors, but rather via non-stereoselective activation of toll-like receptor 4 (TLR4), a recently recognized key glial receptor participating in neuropathic pain as well. This discovery identifies a means for separating the beneficial actions of opioids (opioid receptor mediated) from the unwanted side-effects (TLR4/glial mediated) by pharmacologically targeting TLR4. Such a drug should be a stand-alone therapeutic for treating neuropathic pain as well. Excitingly, with newly-established clinical trials of two glial modulators for treating neuropathic pain and improving the utility of opioids, translation from rats-to-humans now begins with the promise of improved clinical pain control.
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Affiliation(s)
- Linda R Watkins
- Department of Psychology & Neuroscience and The Center for Neuroscience, University of Colorado at Boulder, Boulder, Colorado USA.
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Hajighasemi F, Mirshafiey A. In vitro sensitivity of leukemia cells to propranolol. J Clin Med Res 2009; 1:144-9. [PMID: 22493648 PMCID: PMC3318877 DOI: 10.4021/jocmr2009.06.1244] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/19/2009] [Indexed: 11/29/2022] Open
Abstract
Background Propranolol, as a beta-adrenergic blocker is used for treatment of a large number of cardiovascular diseases such as hypertension and arrhythmias. The inhibitory effects of propranolol on tumor cells growth and also its cytotoxicity on cancerous cells have been revealed by several studies. In this study the sensitivity of a number of human leukemic cell lines to propranolol was evaluated in vitro. Methods Two human leukemic T cells (Molt-4 and Jurkat) and a monocyte (U937) cell line were used in this study. The cells were cultured in complete RPMI medium and then incubated with different concentrations of propranolol (0.0004 -0.4 mM) in the presence or absence of phytoheamagglutinin (20 μg/ml) for 12, 24 and 48 hours. The cytotoxic effect of the drug was then assessed by trypan blue dye exclusion and also 3-(4,5-dimethyl thiazol-2,5-diphenyltetrazoliumbromide) (MTT) reduction methods. Results Propranolol induced a significant dose dependent cytotoxic effect at ≥ 0.2 mM concentration on all three human cell lines (Molt-4, Jurkat and U937) used in this study, after 12 hours incubation onwards, compared to untreated control cells. Conclusions Our results demonstrated that leukemic cell lines used in this study were sensitive to propranolol at ≥ 0.2 mM concentration of the drug. These results suggest that propranolol may have potential implication in chemoprevention of lymphoproliferative disorders along with its chronic long-term usage in cardiac problems. Keywords Propranolol; Leukemia; Cell lines; Sensitivity
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Affiliation(s)
- Fatemeh Hajighasemi
- Department of Immunology, Faculty of Medicine, Shahed University, Tehran, Iran
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Abstract
The management of critically ill patients necessitates the use of sedatives and analgesics to provide patient comfort and cooperation. These drugs exert profound effects on all organ systems, not only the central nervous system, and this article describes the immunologic effects of the commonly used critical care sedatives: propofol, the benzodiazepines, opioids, and alpha(2)-adrenoceptor agonists. Benzodiazepines, opioids, and possibly even propofol worsen outcome in animal models of infection, whereas preliminary evidence suggests that the alpha(2)-adrenoceptor agonist, dexmedetomidine, may improve outcomes in the setting of infection. Given the burden of sepsis and secondary infections in critical care, choice of sedation may need to be carefully considered to preserve immune responses in critically ill patients.
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Affiliation(s)
- Robert D Sanders
- Magill Department of Anaesthetics, Intensive Care and Pain Medicine, Imperial College London, Chelsea and Westminster Hospital, 369 Fulham Road, SW10 9NH, London, UK.
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Verburg‐Van Kemenade BL, Stolte EH, Metz JR, Chadzinska M. Chapter 7 Neuroendocrine–Immune Interactions in Teleost Fish. FISH PHYSIOLOGY 2009. [DOI: 10.1016/s1546-5098(09)28007-1] [Citation(s) in RCA: 64] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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40
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Sawaya BE, Deshmane SL, Mukerjee R, Fan S, Khalili K. TNF alpha production in morphine-treated human neural cells is NF-kappaB-dependent. J Neuroimmune Pharmacol 2008; 4:140-9. [PMID: 19023660 DOI: 10.1007/s11481-008-9137-z] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2008] [Accepted: 11/06/2008] [Indexed: 01/14/2023]
Abstract
The cytokine tumor necrosis factor alpha (TNFalpha) is a key factor in several inflammatory diseases and its levels increase in response to a variety of internal or external stimuli. The regulation of the TNFalpha promoter is mediated by several transcription factors including the nuclear factor kappa B protein (NF-kappaB). This study examines the role of NF-kappaB in the regulation of TNFalpha production by morphine in microglia. Using reverse transcriptase polymerase chain reaction, we demonstrated the presence of morphine receptors in these cells. We next demonstrated the ability of morphine to promote TNFalpha production and secretion by these cells using a cytokine array assay. Transient transfection experiments led to the identification of the region located between nucleotides -751 and -615 within the TNFalpha promoter as being responsive to morphine treatment. The DNA sequence of this region contains a motif indicative of a potential NF-kappaB binding site. The use of a small interfering RNA directed against p65, a subunit of NF-kappaB, demonstrated that TNFalpha induction by morphine is NF-kappaB-dependent. All of the effects of morphine were reversed by the morphine inhibitor, naloxone. These data provide important insights into the effects of morphine on microglia.
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Affiliation(s)
- Bassel E Sawaya
- Department of Neuroscience, Center for Neurovirology, Temple University School of Medicine, 1900N 12th Street, Philadelphia, PA 19122, USA.
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Turchan-Cholewo J, Dimayuga FO, Gupta S, Keller JN, Knapp PE, Hauser KF, Bruce-Keller AJ. Morphine and HIV-Tat increase microglial-free radical production and oxidative stress: possible role in cytokine regulation. J Neurochem 2008; 108:202-15. [PMID: 19054280 DOI: 10.1111/j.1471-4159.2008.05756.x] [Citation(s) in RCA: 75] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Opiate abuse alters the progression of human immunodeficiency virus and may increase the risk of neuroAIDS. As neuroAIDS is associated with altered microglial reactivity, the combined effects of human immunodeficiency virus-Tat and morphine were determined in cultured microglia. Specifically, experiments determined the effects of Tat and morphine on microglial-free radical production and oxidative stress, and on cytokine release. Data show that combined Tat and morphine cause early and synergistic increases in reactive oxygen species, with concomitant increases in protein oxidation. Furthermore, combined Tat and morphine, but not Tat or morphine alone, cause reversible decreases in proteasome activity. The effects of morphine on free radical production and oxidative stress are prevented by pre-treatment with naloxone, illustrating the important role of opioid receptor activation in these phenomena. While Tat is well known to induce cytokine release from cultured microglia, morphine decreases Tat-induced release of the cytokines tumor necrosis factor-alpha and interleukin-6, as well as the chemokine monocyte chemoattractant protein-1 (MCP-1). Finally, experiments using the reversible proteasome inhibitor MG115 show that temporary, non-cytotoxic decreases in proteasome activity increase protein oxidation and decrease tumor necrosis factor-alpha, interleukin-6, and MCP-1 release from microglia. Taken together, these data suggest that oxidative stress and proteasome inhibition may be involved in the immunomodulatory properties of opioid receptor activation in microglia.
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Salvemini D. Peroxynitrite and opiate antinociceptive tolerance: a painful reality. Arch Biochem Biophys 2008; 484:238-44. [PMID: 19017525 DOI: 10.1016/j.abb.2008.11.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2008] [Revised: 10/31/2008] [Accepted: 11/01/2008] [Indexed: 12/14/2022]
Affiliation(s)
- Daniela Salvemini
- Department of Internal Medicine, Division of Pulmonary, Critical Care and Sleep Medicine, Saint Louis University School of Medicine, 3635 Vista Avenue, Saint Louis, MO 63110-0250, USA.
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Lam CF, Chang PJ, Huang YS, Sung YH, Huang CC, Lin MW, Liu YC, Tsai YC. Prolonged use of high-dose morphine impairs angiogenesis and mobilization of endothelial progenitor cells in mice. Anesth Analg 2008; 107:686-92. [PMID: 18633053 DOI: 10.1213/ane.0b013e31817e6719] [Citation(s) in RCA: 53] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
BACKGROUND Morphine is one of the most commonly prescribed analgesics for treating wound pain. Using a mouse model of excisional wound injury, we determined the effects of high-dose morphine on angiogenesis and mobilization of endothelial progenitor cells. METHODS An excisional wound was created on mice treated with placebo or morphine (20 mg/kg, i.p. injection for 14 days). Wound healing was compared by measuring the final-to-initial wound area ratio. Generation of superoxide anions in the wound was determined by luminol-enhanced chemiluminescence. Circulating mononuclear cells were isolated and measured for endothelial progenitor cell (defined as CD34+/CD133+ cell) counts. In vivo and in vitro measurements of angiogenesis after morphine treatment were performed using the Matrigel assay. RESULTS Mice treated with morphine had reduced wound closure and higher wound superoxide ions concentrations than control mice. Morphine reduced the number of postwound circulating endothelial progenitor cells. Matrigel assay showed impaired angiogenesis in animals and reduced capillary tube formation in cultured endothelial cells treated with morphine. CONCLUSION High-dose morphine impaired angiogenesis, increased systemic oxidative stress, and impaired mobilization of endothelial progenitor cells. This study emphasizes the potential detrimental effect of high-dose morphine on angiogenesis after systemic administration.
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Affiliation(s)
- Chen-Fuh Lam
- Department of Anesthesiology, National Cheng Kung University, Medical College and Hospital, Tainan City, Taiwan
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Cunha-Oliveira T, Rego AC, Oliveira CR. Cellular and molecular mechanisms involved in the neurotoxicity of opioid and psychostimulant drugs. ACTA ACUST UNITED AC 2008; 58:192-208. [PMID: 18440072 DOI: 10.1016/j.brainresrev.2008.03.002] [Citation(s) in RCA: 143] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2008] [Revised: 03/18/2008] [Accepted: 03/18/2008] [Indexed: 12/13/2022]
Abstract
Substance abuse and addiction are the most costly of all the neuropsychiatric disorders. In the last decades, much progress has been achieved in understanding the effects of the drugs of abuse in the brain. However, efficient treatments that prevent relapse have not been developed. Drug addiction is now considered a brain disease, because the abuse of drugs affects several brain functions. Neurological impairments observed in drug addicts may reflect drug-induced neuronal dysfunction and neurotoxicity. The drugs of abuse directly or indirectly affect neurotransmitter systems, particularly dopaminergic and glutamatergic neurons. This review explores the literature reporting cellular and molecular alterations reflecting the cytotoxicity induced by amphetamines, cocaine and opiates in neuronal systems. The neurotoxic effects of drugs of abuse are often associated with oxidative stress, mitochondrial dysfunction, apoptosis and inhibition of neurogenesis, among other mechanisms. Understanding the mechanisms that underlie brain dysfunction observed in drug-addicted individuals may contribute to improve the treatment of drug addiction, which may have social and economic consequences.
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Affiliation(s)
- Teresa Cunha-Oliveira
- Center for Neuroscience and Cell Biology and Institute of Biochemistry, Faculty of Medicine, University of Coimbra, 3004-504 Coimbra, Portugal
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Modulation of immune function by morphine: implications for susceptibility to infection. J Neuroimmune Pharmacol 2007; 1:77-89. [PMID: 18040793 DOI: 10.1007/s11481-005-9009-8] [Citation(s) in RCA: 96] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Messmer D, Hatsukari I, Hitosugi N, Schmidt-Wolf IGH, Singhal PC. Morphine reciprocally regulates IL-10 and IL-12 production by monocyte-derived human dendritic cells and enhances T cell activation. Mol Med 2007. [PMID: 17380193 DOI: 10.2119/2006-00043.messmer] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We evaluated the effect of morphine on human dendritic cells (DCs). Interestingly, immature DCs were found to express all 3 (mu, kappa, delta) opioid receptors on the cell surface. Chronic morphine treatment (10(-8) to 10(-12) M) during the development of DCs from monocytes augmented LPS-induced upregulation of HLA-DR, CD86, CD80, and CD83 and increased the T cell stimulatory capacity of DCs, which could be inhibited by naloxone, an opioid receptor antagonist. The change in surface phenotype was paralleled by a p38 MAPK-dependent decrease in IL-10 and increase in IL-12 secretion. Our data indicate that morphine exerts an immunostimulatory effect by modulating LPS-induced DC maturation.
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Affiliation(s)
- Davorka Messmer
- Laboratory of Experimental Immunology, The Feinstein Institute for Medical Research, 350 Community Drive, Manhasset, NY, USA.
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Buch SK, Khurdayan VK, Lutz SE, Knapp PE, El-Hage N, Hauser KF. Glial-restricted precursors: patterns of expression of opioid receptors and relationship to human immunodeficiency virus-1 Tat and morphine susceptibility in vitro. Neuroscience 2007; 146:1546-54. [PMID: 17478053 PMCID: PMC4308314 DOI: 10.1016/j.neuroscience.2007.03.006] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2006] [Revised: 03/06/2007] [Accepted: 03/07/2007] [Indexed: 12/11/2022]
Abstract
Recent evidence suggests that human immunodeficiency virus (HIV)-induced pathogenesis is exacerbated by opioid abuse and that the synergistic toxicity may result from direct actions of opioids in immature glia or glial precursors. To assess whether opioids and HIV proteins are directly toxic to glial-restricted precursors (GRPs), we isolated neural stem cells from the incipient spinal cord of embryonic day 10.5 ICR mice. GRPs were characterized immunocytochemically and by reverse transcriptase-polymerase chain reaction (RT-PCR). At 1 day in vitro (DIV), GRPs failed to express mu opioid receptors (MOR or MOP) or kappa-opioid receptors (KOR or KOP); however, at 5 DIV, most GRPs expressed MOR and KOR. The effects of morphine (500 nM) and/or Tat (100 nM) on GRP viability were assessed in GRPs at 5 DIV by examining the apoptotic effector caspase-3 and cell viability (ethidium monoazide exclusion) at 96 h following continuous exposure. Tat or morphine alone or in combination caused significant increases in GRP cell death at 96 h, but not at 24 h, following exposure. Although morphine or Tat caused increases in caspase-3 activity at 4 h, this was not accompanied with increased cleaved caspase-3 immunoreactive or ethidium monoazide-positive dying cells at 24 h. The results indicate that prolonged morphine or Tat exposure is intrinsically toxic to isolated GRPs and/or their progeny in vitro. Moreover, MOR and KOR are widely expressed by Sox2 and/or Nkx2.2-positive GRPs in vitro and the pattern of receptor expression appears to be developmentally regulated. The temporal requirement for prolonged morphine and HIV-1 Tat exposure to evoke toxicity in glia may coincide with the attainment of a particular stage of maturation and/or the development of particular apoptotic effector pathways and may be unique to spinal cord GRPs. Should similar patterns occur in vivo then we predict that immature astroglia and oligodendroglia may be preferentially vulnerable to HIV-1 infection or chronic opiate exposure.
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Affiliation(s)
| | | | | | | | | | - Kurt F. Hauser
- Correspondence: Kurt F. Hauser, Ph.D. Department of Anatomy & Neurobiology University of Kentucky, College of Medicine 800 Rose Street, Lexington, KY 40536-0298, USA. , Phone: (859) 323-6477, Fax: (859) 323-5946
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Payabvash S, Kiumehr S, Nezami BG, Zandieh A, Anvari P, Tavangar SM, Dehpour AR. Endogenous opioids modulate hepatocyte apoptosis in a rat model of chronic cholestasis: the role of oxidative stress. Liver Int 2007; 27:538-47. [PMID: 17403194 DOI: 10.1111/j.1478-3231.2007.01457.x] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
Abstract
AIMS/BACKGROUND There are increasing number of evidences indicating the contribution of endogenous opioids in the pathophysiology of cholestatic liver disease. The aim of the present study was to determine the role of the endogenous-opioid system in the modulation of hepatocytes apoptosis and liver oxidant/anti-oxidant balance during chronic cholestasis in rats. METHODS We induced cholestasis in rats by bile duct ligation (BDL). Naltrexone, an opioid antagonist, was administered at different doses (2.5, 5, 10, 20 and 40 mg/kg/day) to cholestatic animals for 5 weeks. RESULTS Naltrexone prevented the cholestasis-induced decrease of hepatic glutathione levels at higher doses (20 and 40 mg/kg/day). In the next phase of the study, we evaluated the effects of 20 mg/kg/day naltrexone treatment on hepatic damage indices and liver oxidant/anti-oxidant balance in 5-week BDL rats. There was a marked increase in the number of apoptotic hepatocytes as well as serum liver enzymes and hepatic lipid peroxidation levels in cholestatic rats compared with sham-operated animals 5 weeks after the operation. Liver anti-oxidant enzyme activities were significantly reduced in cholestatic rats compared with controls. Chronic treatment with naltrexone significantly improved all the aforementioned indices in comparison with saline-treated cholestatic rats. CONCLUSION Our findings demonstrate that the administration of opioid antagonist is protective against hepatic damage in a rat model of chronic cholestasis. We suggest that increased levels of endogenous opioids contribute to hepatocytes apoptosis in cholestasis, possibly through downregulation of liver anti-oxidant defense.
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Affiliation(s)
- Seyedmehdi Payabvash
- Department of Pharmacology, School of Medicine, Tehran University of Medical Sciences, Tehran, Iran
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Messmer D, Hatsukari I, Hitosugi N, Schmidt-Wolf IGH, Singhal PC. Morphine reciprocally regulates IL-10 and IL-12 production by monocyte-derived human dendritic cells and enhances T cell activation. MOLECULAR MEDICINE (CAMBRIDGE, MASS.) 2007; 12:284-90. [PMID: 17380193 PMCID: PMC1829197 DOI: 10.2119/2006–00043.messmer] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Received: 06/12/2006] [Accepted: 10/13/2006] [Indexed: 11/06/2022]
Abstract
We evaluated the effect of morphine on human dendritic cells (DCs). Interestingly, immature DCs were found to express all 3 (mu, kappa, delta) opioid receptors on the cell surface. Chronic morphine treatment (10(-8) to 10(-12) M) during the development of DCs from monocytes augmented LPS-induced upregulation of HLA-DR, CD86, CD80, and CD83 and increased the T cell stimulatory capacity of DCs, which could be inhibited by naloxone, an opioid receptor antagonist. The change in surface phenotype was paralleled by a p38 MAPK-dependent decrease in IL-10 and increase in IL-12 secretion. Our data indicate that morphine exerts an immunostimulatory effect by modulating LPS-induced DC maturation.
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Affiliation(s)
- Davorka Messmer
- Laboratory of Experimental Immunology, The Feinstein Institute for Medical Research, 350 Community Drive, Manhasset, NY, USA.
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Asakura H, Kawamoto K, Igimi S, Yamamoto S, Makino SI. Enhancement of mice susceptibility to infection with Listeria monocytogenes by the treatment of morphine. Microbiol Immunol 2006; 50:543-7. [PMID: 16858145 DOI: 10.1111/j.1348-0421.2006.tb03824.x] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The effect of morphine on the susceptibility of BALB/c mice to diarrheagenic Escherichia coli, Shigella flexneri, Listeria monocytogenes, Salmonella Enteritidis, Yersinia enterocolitica, was examined via the intraperitoneal inoculation. Morphine treatment increased the susceptibility to S. Enteritidis and L. monocytogenes, resulting in bacteremia and central nervous system (CNS) invasion (for L. monocytogenes), while the infection with other bacteria did not show the systemic dissemination in the morphinetreated mice. Notably, L. monocytogenes infection caused 100% mortality with a mean survival time (MST) of 1.3 days in morphine-treated mice, but untreated mice did not die. The present data suggested that individuals using heroin or treated with morphine derivatives might be at high risk for listeriosis, especially those who are immunocompromised. Recent increasing consumption of morphine may propose the necessity for further epidemiological surveillance on infectious diseases.
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Affiliation(s)
- Hiroshi Asakura
- Division of Biomedical Food Research, National Institute of Health Sciences, Tokyo, Japan.
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