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D'Ângelo MQ, Queiroz-Junior CM, Maltos KLDM, Ferreira AJ, Pacheco CMDF, Soares RV. The blockade of kappa opioid receptors exacerbates alveolar bone resorption in rats. Arch Oral Biol 2020; 120:104923. [PMID: 33091661 DOI: 10.1016/j.archoralbio.2020.104923] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2020] [Revised: 09/20/2020] [Accepted: 09/21/2020] [Indexed: 11/18/2022]
Abstract
OBJECTIVES Bone resorption associated to chronic diseases, such as arthritis and periodontitis, results from exacerbated immuno-inflammatory host response that leads to tissue breakdown. The significance of opioid pathways as endogenous modulators of inflammatory events has already been described. Thus, the aim of this work is to determine whether some of the main three opioid receptors are endogenously activated to prevent bone loss during experimentally-induced alveolar bone resorption. DESIGN This study used an experimental model of alveolar bone resorption induced by ligature in rats. A silk thread was placed around the 2nd maxillary molar of male Wistar rats. In the 3rd, 4th and 5th day after ligation the rats received a local injection of different concentrations of opioid antagonists Cyprodime, Naltrindole, or Nor-binaltorphimine, which specifically block mü, delta and kappa opioid receptors, respectively. In the 7th experimental day, rats were euthanized and their maxillae collected for evaluation of alveolar bone and fiber attachment loss, morphometric counting of osteoclasts and osteoblasts, as well as the levels of cytokines IL-1β, IFN-γ, and IL-6 by ELISA. RESULTS Selective antagonism of kappa opioid receptors, but not mü and delta, exacerbated alveolar bone resorption induced by ligature in rats. The increased bone loss associated with higher number of osteoclasts surrounding alveolar bone, although osteoblasts' counting remained unchanged. The concentrations of IL-1β and IL-6 in periodontal tissues were also significantly higher in the rats treated with the kappa antagonist. CONCLUSION Inhibiting kappa opioid receptors exacerbates alveolar bone resorption.
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Affiliation(s)
- Marcelo Queiroz D'Ângelo
- Graduate Program in Dentistry, Pontifícia Universidade Católica de Minas Gerais (PUCMINAS), Pontifícia Universidade Católica de Minas Gerais (PUCMINAS), Rua Dom José Gaspar 500, Coração Eucarístico, Belo Horizonte, MG, Brazil
| | - Celso Martins Queiroz-Junior
- Translational Biology Laboratory, Morphology Department, Institute of Biological Sciences, Universidade Federal de Minas Gerais (ICB-UFMG), Avenida Antônio Carlos 6627, Belo Horizonte, MG, Brazil
| | - Kátia Lucy de Melo Maltos
- School of Dentistry, Universidade Federal de Minas Gerais (FOUFMG), Avenida Antônio Carlos 6627, Belo Horizonte, MG, Brazil
| | - Anderson José Ferreira
- Translational Biology Laboratory, Morphology Department, Institute of Biological Sciences, Universidade Federal de Minas Gerais (ICB-UFMG), Avenida Antônio Carlos 6627, Belo Horizonte, MG, Brazil
| | | | - Rodrigo Villamarim Soares
- Graduate Program in Dentistry, Pontifícia Universidade Católica de Minas Gerais (PUCMINAS), Pontifícia Universidade Católica de Minas Gerais (PUCMINAS), Rua Dom José Gaspar 500, Coração Eucarístico, Belo Horizonte, MG, Brazil
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Abstract
PURPOSE OF REVIEW Opioids have been shown to be associated with an increased risk of fracture. The purpose of this paper is to review recent research into the effects of opioids on bone formation and bone healing in animal models and in human studies. RECENT FINDINGS Most opioids, such as morphine and fentanyl, negatively affected bone remodeling and bone healing in animal models. Conversely, remifentanil has been recently shown to promote in vitro osteoblast differentiation and to inhibit differentiation and maturation of osteoclasts, therefore reducing bone resorption. According to the possible negative role of opioids in bone healing, opioid antagonists have been shown to enhance bone mineralization, suggesting a possible therapeutic role in the future for osteoporosis. Other neuropeptides, such as the vasoactive intestinal peptide (VIP) and the neuropeptide Y (NPY), have been proved to promote osteogenesis. The increased risk of fractures among opioid users may be related to their central nervous system side effects or to the reduced bone density, partly due to their endocrine effects, and partly to their direct activity on bone cells. Clinical data strongly suggested a potential negative effect of opioids in bone healing. The risk of nonunion fracture is significantly increased in opioid users, and bone mass density was reduced in patients under long-term opioid treatment. The direct effects of opioids on bone remodeling appears evident from these reports. Not all opioids have the same potential for negatively impacting bone healing. Opioid antagonists may increase bone density and could represent a possible future treatment for low bone mass density pathologies. However, further trials are warranted to clarify the clinical relevance of these emerging findings from animal studies.
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Affiliation(s)
- Flaminia Coluzzi
- Department of Medical and Surgical Sciences and Biotechnologies, Sapienza University of Rome, Polo Pontino, Corso della Repubblica 79, 04100, Latina, Italy.
- Unit of Anaesthesia, Intensive Care Medicine and Pain Therapy, AUSL Latina c/o ICOT, Latina, Italy.
| | - Maria Sole Scerpa
- Department of Medical and Surgical Sciences and Biotechnologies, Sapienza University of Rome, Polo Pontino, Corso della Repubblica 79, 04100, Latina, Italy
- Unit of Anaesthesia, Intensive Care Medicine and Pain Therapy, AUSL Latina c/o ICOT, Latina, Italy
| | - Marco Centanni
- Department of Medical and Surgical Sciences and Biotechnologies, Sapienza University of Rome, Polo Pontino, Corso della Repubblica 79, 04100, Latina, Italy
- Endocrinology Unit, Santa Maria Goretti Hospital, AUSL Latina, Latina, Italy
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Nalbuphine, a kappa opioid receptor agonist and mu opioid receptor antagonist attenuates pruritus, decreases IL-31, and increases IL-10 in mice with contact dermatitis. Eur J Pharmacol 2019; 864:172702. [PMID: 31568781 DOI: 10.1016/j.ejphar.2019.172702] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 09/25/2019] [Accepted: 09/26/2019] [Indexed: 12/13/2022]
Abstract
Chronic itch is one of the disturbing symptoms of inflammatory skin diseases. Kappa opioid receptor agonists are effective in suppressing scratching in mice against different pruritogens. Nalbuphine, a nonscheduled kappa opioid receptor agonist and mu opioid receptor antagonist, has been in clinical use for post-operative pain management since the 1980s and recently has been in clinical trials for chronic itch of prurigo nodularis (https://www.trevitherapeutics.com/nalbuphine). We studied whether nalbuphine is effective against chronic scratching induced by rostral neck application of 1-fluoro-2,4-dinitrobenzene (DNFB), an accepted mouse model of contact dermatitis to study pruritoceptive itch. Mice were treated once a week with either saline or nalbuphine 20 min before the third, fifth, seventh, and ninth sensitizations with DNFB and the number of scratching bouts was counted for 30 min. Skin samples from the neck of mice at week 4 were used to measure protein levels and mRNA expressions of chemokines and cytokines. Different sets of mice were used to study sedation and anhedonic-like behavior of nalbuphine. We found that: nalbuphine (a) antagonized scratching in a dose- and time-dependent manner without affecting locomotion, b) decreased IL-31, and increased anti-inflammatory IL-10, and c) induced more elevations in the levels of CCL2, CCL3, CCL12, CXCL1, CXCL2, CXCL9, CXCL10, IL-1β, IL-16, TIMP-1, M-CSF, TREM-1 and M1-type macrophages compared to saline. Increases in chemokines and cytokines and M1 macrophages by nalbuphine suggest an inflammatory phase of healing in damaged skin due to scratching. Our data indicate that nalbuphine is an effective antipruritic in murine model of pruritoceptive itch.
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Clinical assessment of intra-articular injection of butorphanol in management of temporomandibular joint internal derangement. ACTA ACUST UNITED AC 2017. [DOI: 10.1097/01.omx.0000525216.51469.67] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Wu L, Zhang S, Shkhyan R, Lee S, Gullo F, Eliasberg CD, Petrigliano FA, Ba K, Wang J, Lin Y, Evseenko D. Kappa opioid receptor signaling protects cartilage tissue against posttraumatic degeneration. JCI Insight 2017; 2:e88553. [PMID: 28097228 DOI: 10.1172/jci.insight.88553] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Osteoarthritis is the most common form of arthritis, and pain relief with opioid-like drugs is a commonly used therapeutic for osteoarthritic patients. Recent studies published by our group showed that the kappa opioid receptor (KOR) is highly expressed during human development in joint-forming cells. However, the precise role of this receptor in the skeletal system remains elusive. The main aim of the current study was to investigate the role of KOR signaling in synovial and cartilaginous tissues in pathological conditions. Our data demonstrate that KOR null mice exhibit accelerated cartilage degeneration after injury when compared with WT mice. Activation of KOR signaling increased the expression of anabolic enzymes and inhibited cartilage catabolism and degeneration in response to proinflammatory cytokines such as TNF-α. In addition, selective KOR agonists increased joint lubrication via the activation of cAMP/CREB signaling in chondrocytes and synovial cells. Taken together, these results demonstrate direct effects of KOR agonists on cartilage and synovial cells and reveals a protective effect of KOR signaling against cartilage degeneration after injury. In addition to pain control, local administration of dynorphin or other KOR agonist represents an attractive therapeutic approach in patients with early stages of osteoarthritis.
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Affiliation(s)
- Ling Wu
- Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Shu Zhang
- State Key Laboratory for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Ruzanna Shkhyan
- Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Siyoung Lee
- Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Francesca Gullo
- Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
| | - Claire D Eliasberg
- Department of Orthopaedic Surgery, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Frank A Petrigliano
- Department of Orthopaedic Surgery, David Geffen School of Medicine, UCLA, Los Angeles, California, USA
| | - Kai Ba
- State Key Laboratory for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Jing Wang
- Department of Stomatology, Tenth People's Hospital of Tongji University, Shanghai, China
| | - Yunfeng Lin
- State Key Laboratory for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, China
| | - Denis Evseenko
- Department of Orthopaedic Surgery, Keck School of Medicine, University of Southern California, Los Angeles, California, USA
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Janas A, Folwarczna J. Opioid receptor agonists may favorably affect bone mechanical properties in rats with estrogen deficiency-induced osteoporosis. Naunyn Schmiedebergs Arch Pharmacol 2016; 390:175-185. [PMID: 27896372 PMCID: PMC5233738 DOI: 10.1007/s00210-016-1295-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Accepted: 08/29/2016] [Indexed: 12/14/2022]
Abstract
The results of epidemiological, clinical, and in vivo and in vitro experimental studies on the effect of opioid analgesics on bone are inconsistent. The aim of the present study was to investigate the effect of morphine (an agonist of opioid receptors), buprenorphine (a partial μ opioid receptor agonist and κ opioid receptor antagonist), and naloxone (an antagonist of opioid receptors) on the skeletal system of female rats in vivo. The experiments were carried out on 3-month-old Wistar rats, divided into two groups: nonovariectomized (intact; NOVX) rats and ovariectomized (OVX) rats. The bilateral ovariectomy was performed 7 days before the start of drug administration. Morphine hydrochloride (20 mg/kg/day s.c.), buprenorphine (0.05 mg/kg/day s.c.), or naloxone hydrochloride dihydrate (2 mg/kg/day s.c.) were administered for 4 weeks to NOVX and OVX rats. In OVX rats, the use of morphine and buprenorphine counteracted the development of osteoporotic changes in the skeletal system induced by estrogen deficiency. Morphine and buprenorphine beneficially affected also the skeletal system of NOVX rats, but the effects were much weaker than those in OVX rats. Naloxone generally did not affect the rat skeletal system. The results confirmed the role of opioid receptors in the regulation of bone remodeling processes and demonstrated, in experimental conditions, that the use of opioid analgesics at moderate doses may exert beneficial effects on the skeletal system, especially in estrogen deficiency.
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Affiliation(s)
- Aleksandra Janas
- Department of Pharmacology, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia, Katowice, Poland
| | - Joanna Folwarczna
- Department of Pharmacology, School of Pharmacy with the Division of Laboratory Medicine in Sosnowiec, Medical University of Silesia, Katowice, Poland.
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Queiroz-Junior CM, Maltos KL, Pacheco DF, Silva TA, Albergaria JD, Pacheco CM. Endogenous opioids regulate alveolar bone loss in a periodontal disease model. Life Sci 2013; 93:471-7. [DOI: 10.1016/j.lfs.2013.08.007] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2013] [Revised: 07/31/2013] [Accepted: 08/13/2013] [Indexed: 12/18/2022]
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Javed F, Thafeed Alghamdi AS, Mikami T, Mehmood A, Ahmed HB, Samaranayake LP, Tenenbaum HC. Effect of glycemic control on self-perceived oral health, periodontal parameters, and alveolar bone loss among patients with prediabetes. J Periodontol 2013; 85:234-41. [PMID: 23659422 DOI: 10.1902/jop.2013.130008] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Abstract
BACKGROUND The effect of glycemic control on severity of periodontal inflammatory parameters in patients with prediabetes is unknown. The aim of the present study is to assess the effects of glycemic control on self-perceived oral health, periodontal parameters, and marginal bone loss (MBL) in patients with prediabetes. METHODS A total of 303 individuals were included. Hemoglobin A1c (HbA1c) and fasting blood glucose levels (FBGLs) were recorded. Participants were divided into three groups: 1) group A: 75 patients with prediabetes (FBGLs = 100 to 125 mg/dL [HbA1c ≥5%]); 2) group B: 78 individuals previously considered prediabetic but having FBGLs <100 mg/dL (HbA1c <5%) resulting from dietary control; and 3) control group: 150 medically healthy individuals. Self-perceived oral health, socioeconomic status, and education status were determined using a questionnaire. Plaque index (PI), bleeding on probing (BOP), probing depth (PD), and clinical attachment loss (AL) were recorded. Premolar and molar MBLs were measured on panoramic radiographs. RESULTS Periodontal parameters (PI, BOP, PD, and AL) (P <0.01) and MBL (P <0.01) were worse among individuals in group A than those in group B. Self-perceived gingival bleeding (P <0.001), pain on chewing (P <0.001), dry mouth (P <0.001), and oral burning sensations (P <0.05) were worse among patients in group A than those in group B. There was no difference in periodontal parameters, MBL, and self-perceived oral symptoms among patients with prediabetes in group B and healthy controls. CONCLUSIONS Self-perceived oral health, severity of periodontal parameters, and MBL are worse in patients with prediabetes than controls. Glycemic control significantly reduces the severity of these parameters as well as the state of prediabetes in affected individuals.
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Affiliation(s)
- Fawad Javed
- Eng. A.B. Research Chair for Growth Factors and Bone Regeneration, Three-Dimensional Imaging and Biomechanical Laboratory, College of Applied Medical Sciences, King Saud University, Riyadh, Saudi Arabia
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Abstract
This paper is the thirty-fourth consecutive installment of the annual review of research concerning the endogenous opioid system. It summarizes papers published during 2011 that studied the behavioral effects of molecular, pharmacological and genetic manipulation of opioid peptides, opioid receptors, opioid agonists and opioid antagonists. The particular topics that continue to be covered include the molecular-biochemical effects and neurochemical localization studies of endogenous opioids and their receptors related to behavior (Section 2), and the roles of these opioid peptides and receptors in pain and analgesia (Section 3); stress and social status (Section 4); tolerance and dependence (Section 5); learning and memory (Section 6); eating and drinking (Section 7); alcohol and drugs of abuse (Section 8); sexual activity and hormones, pregnancy, development and endocrinology (Section 9); mental illness and mood (Section 10); seizures and neurologic disorders (Section 11); electrical-related activity and neurophysiology (Section 12); general activity and locomotion (Section 13); gastrointestinal, renal and hepatic functions (Section 14); cardiovascular responses (Section 15); respiration (Section 16); and immunological responses (Section 17).
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Affiliation(s)
- Richard J Bodnar
- Department of Psychology and Neuropsychology Doctoral Sub-Program, Queens College, City University of New York, Flushing, NY 11367, United States.
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Chicre-Alcântara TC, Torres-Chávez KE, Fischer L, Clemente-Napimoga JT, Melo V, Parada CA, Tambeli CH. Local kappa opioid receptor activation decreases temporomandibular joint inflammation. Inflammation 2012; 35:371-6. [PMID: 21484425 DOI: 10.1007/s10753-011-9329-1] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In an attempt to decrease central side effects associated with the use of opioids, some strategies have been developed by targeting peripheral opioid receptors. In this context, kappa receptors are of major interest, since, in contrast to other opioid receptors, their activation is not associated with potent peripheral side effects. We have recently demonstrated that local activation of kappa opioid receptors significantly decreases formalin-induced temporomandibular joint nociception; however, whether it also decreases temporomandibular joint inflammation is not known. To address this issue, we evaluated if a specific kappa opioid receptor agonist, U50,488 (trans-(1S,2S)-3,4-dichloro-N-methyl-N-[2-(1-pyrrolidinyl)cyclohexyl] benzeneacetamide hydrochloride hydrate), administered into the temporomandibular joint decreases formalin-induced plasma extravasation and neutrophil migration. Ipsilateral, but not contralateral, administration of U50,488 into the temporomandibular joint blocked formalin-induced plasma extravasation and neutrophil migration in a dose-dependent manner. This anti-inflammatory effect was reversed by the ipsilateral, but not contralateral, administration of the kappa opioid receptor antagonist nor-BNI (nor-binaltorphimine dihydrochloride). This study demonstrates that local activation of kappa opioid receptors decreases two important parameters of temporomandibular joint inflammation, that is, plasma extravasation and neutrophil migration, in a dose-dependent and antagonist-reversible manner. This anti-inflammatory effect taken together with the potent antinociceptive effect, suggests that drugs targeting peripheral kappa opioid receptors are promising for the treatment of inflammatory temporomandibular joint pain and probably, other articular pain conditions with an inflammatory basis.
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Affiliation(s)
- Tânia C Chicre-Alcântara
- Department of Physiology, Piracicaba Dental School, State University of Campinas-UNICAMP, Piracicaba, São Paulo, Brazil
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Auh QS, Ro JY. Effects of peripheral κ opioid receptor activation on inflammatory mechanical hyperalgesia in male and female rats. Neurosci Lett 2012; 524:111-5. [PMID: 22819973 DOI: 10.1016/j.neulet.2012.07.018] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Revised: 07/02/2012] [Accepted: 07/11/2012] [Indexed: 12/30/2022]
Abstract
Activation of peripheral κ opioid receptors (KOR) effectively relieves pain and hyperalgesia in preclinical and clinical models of pain. Although centrally located KOR activation results in sexually dimorphic effects, it is unclear whether peripheral KOR also produces sex dependent effects in persistent inflammatory pain conditions. In this study, we investigated whether local administration of a specific KOR agonist, U50, 488 relieve mechanical hyperalgesia induced by the injection of complete Freund's adjuvant (CFA) in the rat hindpaw, and whether there are sex differences. The effects of U50, 488 were assessed three days after the induction of CFA-induced inflammation, a time point at which mechanical hyperalgesia was most prominent. There were no sex differences in baseline and CFA-induced changes in mechanical thresholds between male and female rats. Local treatment of U50, 488 produced moderate, but significant, anti-hyperalgesia in both male and female rats. However, U50, 488 was significantly more effective in male rats at the highest dose of U50, 488. We confirmed that the highest dose of U50, 488 used in this study did not produce systemic effects, and that the drug effect is receptor specific. On the basis of these results, we suggest that local KOR agonists are effective in mitigating mechanical hyperalgesia under a persistent inflammatory pain condition and that sex differences in anti-hyperalgesic effects become more evident at high doses.
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Affiliation(s)
- Q-Schick Auh
- Kyung Hee University School of Dentistry, Department of Oral Medicine, Hoegi Dong, Dongdaemun Gu, Seoul, Republic of Korea
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Effects of boric acid on experimental periodontitis and alveolar bone loss in rats. Arch Oral Biol 2012; 57:60-5. [DOI: 10.1016/j.archoralbio.2011.07.012] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2011] [Revised: 06/06/2011] [Accepted: 07/28/2011] [Indexed: 11/24/2022]
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