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Sebba A. Pain: A Review of Interleukin-6 and Its Roles in the Pain of Rheumatoid Arthritis. Open Access Rheumatol 2021; 13:31-43. [PMID: 33707975 PMCID: PMC7943546 DOI: 10.2147/oarrr.s291388] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2020] [Accepted: 01/22/2021] [Indexed: 12/29/2022] Open
Abstract
Pain is a major and common symptom reported as a top priority in patients with rheumatoid arthritis (RA). Intuitively, RA-related pain is often considered to be a natural consequence of peripheral inflammation, so treatment of RA is expected to manage pain concurrently as part of inflammation control. However, pain in patients with RA can be poorly correlated with objective measures of inflammation, for example, in patients who are otherwise in remission. Joint damage appears to account for only a fraction of this residual pain. Emerging evidence suggests that alteration of peripheral and central pain processing contributes to RA-related pain; this is parallel to, but somewhat independent of, joint inflammation. Interleukin (IL)-6 is a proinflammatory cytokine that contributes to the pathogenesis of RA. It exerts systemic effects via signaling through soluble forms of the IL-6 receptor (“trans-signaling”). Evidence from preclinical studies demonstrates that intra-articular IL-6 can produce long-lasting peripheral sensitization to mechanical stimulation and suggests an important role for IL-6 in central pain sensitization. This may be partly explained by its ability to activate neurons through trans-signaling, affecting nociceptive plasticity and nerve fiber regrowth. Local activity at neuron endings may culminate in altered pain processing in the central nervous system because of persistent signaling from sensitized peripheral neurons. Peripheral and central sensitization can promote the development of chronic pain, which can have a significant impact on patients’ health and quality of life. A proportion of pain in RA may be more appropriately managed as an entity separate from inflammation. Both the peripheral and central nervous systems should be recognized as important potential systems targeted by RA. The substantial burden of RA-related chronic pain suggests that pain should be a key focus in RA management and should be assessed and addressed early and separately from the inflammatory component.
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Affiliation(s)
- Anthony Sebba
- Division of Rheumatology, University of South Florida, Tampa, FL, USA
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Das V, Kc R, Li X, Varma D, Qiu S, Kroin JS, Forsyth CB, Keshavarzian A, van Wijnen AJ, Park TJ, Stein GS, O-Sullivan I, Burris TP, Im HJ. Pharmacological targeting of the mammalian clock reveals a novel analgesic for osteoarthritis-induced pain. Gene 2018; 655:1-12. [PMID: 29474860 DOI: 10.1016/j.gene.2018.02.048] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Accepted: 02/19/2018] [Indexed: 01/02/2023]
Abstract
Environmental disruption of the circadian rhythm is linked with increased pain due to osteoarthritis (OA). We aimed to characterize the role of the clock gene in OA-induced pain more systemically using both genetic and pharmacological approaches. Genetically modified mice, (bmal1f/fNav1.8CreERT mice), generated by deleting the critical clock gene, bmal1, from Nav1.8 sensory neurons, were resistant to the development of mechanical hyperalgesia associated with OA induced by partial medial meniscectomy (PMM) of the knee. In wild-type mice, induction of OA by PMM surgery led to a substantial increase in BMAL1 expression in DRG neurons. Interestingly, pharmacological activation of the REV-ERB (a negative regulator of bmal1 transcription) with SR9009 resulted in reduction of BMAL1 expression, and a significant decrease in mechanical hyperalgesia associated with OA. Cartilage degeneration was also significantly reduced in mice treated with the REV-ERB agonist SR9009. Based on these data, we also assessed the effect of pharmacological activation of REV-ERB using a model of environmental circadian disruption with its associated mechanical hyperalgesia, and noted that SR9009 was an effective analgesic in this model as well. Our data clearly demonstrate that genetic disruption of the molecular clock, via deletion of bmal1 in the sensory neurons of the DRG, decreases pain in a model of OA. Furthermore, pharmacological activation of REV-ERB leading to suppression of BMAL1 expression may be an effective method for treating OA-related pain, as well as to reduce joint damage associated with this disease.
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Affiliation(s)
- Vaskar Das
- Department of Anesthesiology, Rush University Medical Center, Chicago, IL, USA; Department of Biochemistry, Rush University Medical Center, Chicago, IL, USA
| | - Ranjan Kc
- Department of Biochemistry, Rush University Medical Center, Chicago, IL, USA
| | - Xin Li
- Department of Biochemistry, Rush University Medical Center, Chicago, IL, USA
| | - Disha Varma
- Department of Biochemistry, Rush University Medical Center, Chicago, IL, USA
| | - Sujun Qiu
- Department of Biochemistry, Rush University Medical Center, Chicago, IL, USA; Department of Orthopedics, Zhujiang Hospital, Southern Medical University, Guangzhou, China
| | - Jeffrey S Kroin
- Department of Anesthesiology, Rush University Medical Center, Chicago, IL, USA
| | - Christopher B Forsyth
- Department of Internal Medicine Division of Digestive Diseases and Nutrition, Rush University Medical Center, Chicago, IL, USA
| | - Ali Keshavarzian
- Department of Internal Medicine Division of Digestive Diseases and Nutrition, Rush University Medical Center, Chicago, IL, USA
| | | | - Thomas J Park
- Department of Biological Science, University of Illinois at Chicago, IL, USA
| | - Gary S Stein
- Department of Biochemistry, University of Vermont College of Medicine, Burlington, VT, USA
| | - Insug O-Sullivan
- Department of Medicine, University of Illinois at Chicago, IL, USA
| | - Thomas P Burris
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St Louis, MO, USA.
| | - Hee-Jeong Im
- Department of Bioengineering, University of Illinois at Chicago, IL, USA; Jesse Brown Veterans Affairs Medical Center (JBVAMC), Chicago, IL, USA.
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de Andrade ALM, Bossini PS, do Canto De Souza ALM, Sanchez AD, Parizotto NA. Effect of photobiomodulation therapy (808 nm) in the control of neuropathic pain in mice. Lasers Med Sci 2017; 32:865-872. [PMID: 28283814 DOI: 10.1007/s10103-017-2186-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2016] [Accepted: 03/02/2017] [Indexed: 12/22/2022]
Abstract
Neuropathic pain can be defined as the pain initiated or caused by a primary lesion or dysfunction of the central or peripheral nervous system. Photobiomodulation therapy (PBM) stands out among the physical therapy resources used for analgesia. However, application parameters, especially the energy density, remain controversial in the literature. Therefore, this study aimed to investigate the PBM effect, in different energy densities to control neuropathic pain in mice. Fifty (50) mice were induced to neuropathy by chronic constriction surgery of the sciatic nerve (CCI), treated with PBM (808 nm), and divided into five groups: GP (PBM simulation), GS (sham), GL10, GL20, GL40 (energy density of 10, 20, and 40 J/cm2, respectively). The evaluations were carried out using the hot plate test and Randall and Selitto test, before and after the CCI surgery, every 15 days during the 90 days experiment. β-Endorphin blood dosage was also tested. For both the hot plate and Randall and Selitto tests, the GL20 and GL40 groups presented reduction of the nociceptive threshold from the 30th day of treatment, the GL10 group only after day 75, and the GP group did not show any improvement throughout the experiment. The β-endorphin dosage was higher for all groups when compared to the GP group. However, only the GL20 group and GL40 presented a significant increase. This study demonstrates that PBM in higher energy density (20, 40 J/cm2) is more effective in the control of neuropathic pain.
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Affiliation(s)
- Ana Laura Martins de Andrade
- Department of Physiotherapy, Federal University of São Carlos (UFSCar), São Carlos, zip code: 13565-905, São Paulo, Brazil.
| | | | | | - Ariane Dutra Sanchez
- Department of Physiotherapy, Federal University of São Carlos (UFSCar), São Carlos, zip code: 13565-905, São Paulo, Brazil
| | - Nivaldo Antonio Parizotto
- Department of Physiotherapy, Federal University of São Carlos (UFSCar), São Carlos, zip code: 13565-905, São Paulo, Brazil
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Compton P, Griffis C, Breen EC, Torrington M, Sadakane R, Tefera E, Irwin MR. Opioid treatment of experimental pain activates nuclear factor-κB. J Opioid Manag 2015; 11:115-25. [PMID: 25901477 DOI: 10.5055/jom.2015.0261] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
OBJECTIVE To determine the independent and combined effects of pain and opioids on the activation of an early marker of inflammation, nuclear factor-κB (NF-κB). DESIGN NF-κB activation was compared within-subjects following four randomly ordered experimental sessions of opioid-only (intravenous fentanyl 1 μg/kg), painonly (cold-pressor), opioid + pain, and a resting condition. SETTING University General Clinical Research Center. PARTICIPANTS Twenty-one (11 female) healthy controls. INTERVENTIONS Following exposure to treatment (fentanyl administration and/or cold-pressor pain), blood samples for NF-κB analysis were obtained. MAIN OUTCOME MEASURES Intracellular levels of activated NF-κB, in unstimulated and stimulated peripheral blood mononuclear cells at 15 and 30 minutes. RESULTS Neither pain nor opioid administration alone effected NF-κB levels in cell populations; however, the combination of treatments induced significant increases of NF-κB in stimulated peripheral blood mononuclear cell, lymphocytes, and monocytes. CONCLUSIONS The combination of acute pain with opioids, as occurs in clinical situations, activates a key transcription factor involved in proinflammatory responses.
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Affiliation(s)
- Peggy Compton
- Department of Nursing, School of Nursing and Health Studies, Georgetown University, Washington, DC
| | - Charles Griffis
- Department of Anesthesiology, University of California, Los Angeles, Los Angeles, California
| | - Elizabeth Crabb Breen
- Cousins Center for Psychoneuroimmunology, Semel Institute for Neurosciences, University of California, Los Angeles, Los Angeles, California
| | - Matthew Torrington
- Department of Family Medicine, University of California, Los Angeles, Los Angeles, California
| | - Ryan Sadakane
- Cousins Center for Psychoneuroimmunology, Semel Institute for Neurosciences, University of California, Los Angeles, Los Angeles, California
| | - Eshetu Tefera
- Department of Biostatistics and Epidemiology, MedStar Health Research Institute, Columbia, Maryland
| | - Michael R Irwin
- Cousins Center for Psychoneuroimmunology, Semel Institute for Neurosciences, University of California, Los Angeles, Los Angeles, California
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An Introduction to Pain Pathways and Pain “Targets”. PROGRESS IN MOLECULAR BIOLOGY AND TRANSLATIONAL SCIENCE 2015; 131:1-30. [DOI: 10.1016/bs.pmbts.2015.01.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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A Mechanism-Based Approach to Prevention of and Therapy for Fibromyalgia. PAIN RESEARCH AND TREATMENT 2012; 2012:951354. [PMID: 22110947 PMCID: PMC3200141 DOI: 10.1155/2012/951354] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 05/15/2011] [Accepted: 07/06/2011] [Indexed: 11/17/2022]
Abstract
Fibromyalgia syndrome (FMS) is characterized by pain referred to deep tissues. Diagnosis and treatment of FMS are complicated by a variable coexistence with regional pain, fatigue, sleep disruption, difficulty with mentation, and depression. The widespread, deep pain of FMS can be a consequence of chronic psychological stress with autonomic dysregulation. Stress acts centrally to facilitate pain and acts peripherally, via sympathetic vasoconstriction, to establish painful muscular ischemia. FMS pain, with or without a coexistent regional pain condition, is stressful, setting up a vicious circle of reciprocal interaction. Also, stress interacts reciprocally with systems of control over depression, mentation, and sleep, establishing FMS as a multiple-system disorder. Thus, stress and the ischemic pain it generates are fundamental to the multiple disorders of FMS, and a therapeutic procedure that attenuates stress and peripheral vasoconstriction should be highly beneficial for FMS. Physical exercise has been shown to counteract peripheral vasoconstriction and to attenuate stress, depression, and fatigue and improve mentation and sleep quality. Thus, exercise can interrupt the reciprocal interactions between psychological stress and each of the multiple-system disorders of FMS. The large literature supporting these conclusions indicates that exercise should be considered strongly as a first-line approach to FMS therapy.
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Perioperative stress response in dogs undergoing elective surgery: variations in behavioural, neuroendocrine, immune and acute phase responses. Anim Welf 2008. [DOI: 10.1017/s0962728600032188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Abstract
AbstractThe aim of this trial was to describe the behavioural, neuroendocrine, immune and acute phase stress responses in dogs undergoing elective surgery in normal, clinical practice conditions. Sixteen dogs were submitted to elective orchiectomy or ovariohysterectomy using a standardised surgical protocol. Each animal was confined to the Intensive Care Unit during pre- and post-surgery and perioperative behavioural, neuroendocrine, immune and acute phase responses were studied. Behavioural categories, cortisol, prolactin, white blood cell, C-reactive protein and haptoglobin variation were evaluated. Values at different times were compared with basal values shown by the dog in its usual environment. Communicative and explorative behaviours showed high occurrence pre-surgery and were inhibited post-surgery. Decreases in post-surgery activity, interactive behaviours and changes in waking/sleeping patterns were observed. The most sensitive marker of psychological stress, cortisol, in comparison with basal values, showed a significant increase both during pre- and post-surgery confinement in the ICU cage. Prolactin values were characterised by a significant decrease early into the post-surgery period. The immune response was characterised by long-term neutrophilia and monocytosis, but by short-term lymphopaenia and eosinopaenia, limited to the early post-operative period. With regard to the acute phase response, both C-reactive protein and haptoglobin showed a long-term increase, post-surgery. Changes in behavioural, haematological and biochemical markers showed that perioperative stress represents a major challenge to dog welfare.
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Vierck CJ, Yezierski RP, Light AR. Long-lasting hyperalgesia and sympathetic dysregulation after formalin injection into the rat hind paw. Neuroscience 2008; 153:501-6. [PMID: 18378404 DOI: 10.1016/j.neuroscience.2008.02.027] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2007] [Revised: 02/13/2008] [Accepted: 02/18/2008] [Indexed: 10/22/2022]
Abstract
Subcutaneous formalin injection has been used extensively to evaluate acute effects (over several hours) of chemical nociceptive stimulation on nociceptive reflexes. Also, a persistent hyperreflexia for mechanical and thermal stimulation, lasting 3 weeks after formalin injection, has been revealed and related to microglial activation in the spinal dorsal horn. The present study demonstrates more prolonged effects of formalin injection, lasting 6 weeks, on operant escape from nociceptive thermal stimulation. Operant escape requires cerebral processing of nociceptive input and can detect effects that are not limited to spinal or spinal-brain stem-spinal reflex circuits. Compared with rats injected with saline, escape responding to 44.5 degrees C and 47 degrees C stimulation was increased after bilateral s.c. injection of 5% formalin into the dorsal hind paws. The hyperalgesia outlasted visible signs of trauma (e.g. paw edema). Responses to 36 degrees C were not altered after formalin injection, providing a control for effects of the peripheral injury on activity levels or exploratory tendencies. Skin temperature recordings from the forepaws and contralateral hind paw during 44.5 degrees C stimulation of the left hind paw provided an indirect measure of cutaneous blood flow in formalin- and saline-injected animals. Normal reductions in skin temperature during thermal stimulation were attenuated (nearly eliminated) at 1 and 2 weeks after formalin injection and partially recovered by 10 weeks. Thus, formalin-induced tissue injury produced a long-term secondary hyperalgesia, accompanied by a reduced sympathetic responsivity. The similar time-course for these phenomena suggests that there are mechanistic linkages between focal injury, autonomic dysregulation and enhanced pain sensitivity.
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Affiliation(s)
- C J Vierck
- Department of Neuroscience, University of Florida College of Medicine, Gainesville, FL 32610-0244, USA.
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Sedlár M, Kudrnová Z, Trca S, Mazoch J, Malíková I, Kvasnicka J, Krska Z, Zeman M, Linhart A. Inflammatory response in patients undergoing hip surgery due to osteoarthrosis or different types of hip fractures. Osteoarthritis Cartilage 2008; 16:26-33. [PMID: 17689272 DOI: 10.1016/j.joca.2007.05.023] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2006] [Accepted: 05/29/2007] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Hip surgery represents a major intervention associated with significant inflammatory response. The objective of our study was to compare markers of systemic inflammation and soluble adhesive molecules in patients undergoing elective hip replacement to those with hip fracture either intracapsular (IC) or extracapsular (EC). DESIGN We included 65 consecutive patients undergoing hip surgery--17 patients with elective hip replacement (EL group), 29 patients with EC fracture (EC group) and 11 patients with IC fracture (IC group). Fibrinogen (FBG), orosomucoid (ORM), C-reactive protein (CRP), transferrin (TRF) and white blood cells count (WBC), sP-selectin, sE-selectin, and soluble intercellular adhesion molecule-1 (sICAM-1) were measured before surgery 4h, 48h, and 7 days after surgery. RESULTS IC patients had preoperatively highest values of inflammatory markers including FBG, CRP, ORM, WBC and lowest values of TRF, as compared to intermediate values found in EC and lowest values in EL groups. The surgery has led in all three subgroups to significant elevation in CRP, ORM and decrease in TRF. In IC group, the subsequent recovery of inflammatory markers was very slow. We noted a significant suppression of sP-selectin and sE-selectin values in all subgroups after surgery. The decrease of sE-selectin but not of sP-selectin correlated with changes in hemoglobin and blood transfusions' administration. CONCLUSIONS Hip surgery is associated with significant inflammatory reaction. In patients with hip fractures, inflammatory markers are elevated already preoperatively, more so in IC than in EC fractures. The unexpected observation of a significant postoperative decrease in sE-selectin and sP-selectin will require further research for elucidation.
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Affiliation(s)
- M Sedlár
- 1st Department of Surgery, General Teaching Hospital and Charles University in Prague, First Faculty of Medicine, Prague, Czech Republic.
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Savegnago L, Pinto LG, Jesse CR, Rocha JBT, Nogueira CW, Zeni G. Spinal mechanisms of antinociceptive action caused by diphenyl diselenide. Brain Res 2007; 1162:32-7. [PMID: 17612508 DOI: 10.1016/j.brainres.2007.04.086] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2007] [Revised: 04/18/2007] [Accepted: 04/27/2007] [Indexed: 11/28/2022]
Abstract
The present study was designed to investigate further the mechanisms involved in the antinociception caused by diphenyl diselenide in behavioral model of pain in mice. Diphenyl diselenide (1-100 mg/kg), given orally, produced significant inhibition of the biting behavior induced by intrathecal (i.t.) injection of glutamate (175 nmol/site) and N-methyl-d-aspartate (NMDA; 450 pmol/site), with mean ID(50) values of 45.92 (39.74-60.4) and 55.77 (36.52-77.5) mg/kg respectively. However, diphenyl diselenide completely failed to affect the nociception induced by alpha-amino-3-hydroxy-5-mehtyl-4-isoxazolepropionic acid (AMPA; 135 pmol/site), (+/-)-1-aminocyclopentane-trans-1,3-dicarboxylic acid (trans-ACPD; 50 nmol/site) and kainate (110 pmol/site). This compound also reduced the nociceptive response induced by substance P (SP) (135 ng/site, i.t.), interleukin 1beta (IL-1beta; 1 pg/site), tumor necrosis factor-alpha (TNF-alpha; 0.1 pg/site), bradykinin (BK; 0.1 microg/site) and capsaicin (30 ng/site) with mean ID(50) values of 16.22, 7.06, 6.06, 4.18 and 7.90 mg/kg, respectively. Together, these results indicate that diphenyl diselenide produced antinociception at spinal sites, with a possible interaction with glutamatergic pathways, more specifically via interaction with NMDA receptors, peptidergic or vanilloid systems.
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Affiliation(s)
- Lucielli Savegnago
- Laboratório de Síntese, Reatividade e Avaliação Farmacológica e Toxicológica de Organocalcogênios, Centro de Ciências Naturais e Exatas, Universidade Federal de Santa Maria, Santa Maria, CEP 97105-900, RS, Brazil
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