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Gonçalves WA, Rezende BM, de Oliveira MPE, Ribeiro LS, Fattori V, da Silva WN, Prazeres PHDM, Queiroz-Junior CM, Santana KTDO, Costa WC, Beltrami VA, Costa VV, Birbrair A, Verri WA, Lopes F, Cunha TM, Teixeira MM, Amaral FA, Pinho V. Sensory Ganglia-Specific TNF Expression Is Associated With Persistent Nociception After Resolution of Inflammation. Front Immunol 2020; 10:3120. [PMID: 32038637 PMCID: PMC6984351 DOI: 10.3389/fimmu.2019.03120] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2019] [Accepted: 12/20/2019] [Indexed: 12/26/2022] Open
Abstract
Joint pain is a distressing symptom of arthritis, and it is frequently persistent even after treatments which reduce local inflammation. Continuous production of algogenic factors activate/sensitize nociceptors in the joint structures and contribute to persistent pain, a challenging and difficult condition to treat. TNF is a crucial cytokine for the pathogenesis of several rheumatic diseases, and its inhibition is a mainstay of treatment to control joint symptoms, including pain. Here, we sought to investigate the inflammatory changes and the role of TNF in dorsal root ganglia (DRG) during persistent hypernociception after the resolution of acute joint inflammation. Using a model of antigen-induced arthritis, the peak of joint inflammation occurred 12–24 h after local antigen injection and was characterized by an intense influx of neutrophils, pro-inflammatory cytokine production, and joint damage. We found that inflammatory parameters in the joint returned to basal levels between 6 and 8 days after antigen-challenge, characterizing the resolving phase of joint inflammation. Mechanical hyperalgesia was persistent up to 14 days after joint insult. The persistent nociception was associated with the inflammatory status of DRG after cessation of acute joint inflammation. The late state of neuroinflammation in the ipsilateral side was evidenced by gene expression of TNF, TNFR2, IL-6, IL-1β, CXCL2, COX2, and iNOS in lumbar DRG (L3-L5) and leukocyte adhesion in the lumbar intumescent vessels between days 6 and 8. Moreover, there were signs of resident macrophage activation in DRG, as evidenced by an increase in Iba1-positive cells. Intrathecal or systemic injection of etanercept, an agent clinically utilized for TNF neutralization, at day 7 post arthritis induction, alleviated the persistent joint hyperalgesia by specific action in DRG. Our data suggest that neuroinflammation in DRG after the resolution of acute joint inflammation drives continuous neural sensitization resulting in persistent joint nociception in a TNF-dependent mechanism.
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Affiliation(s)
- William Antonio Gonçalves
- Departamento de Morfologia, Instituto de Ciências Biológicas (ICB), Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Barbara Maximino Rezende
- Departamento de Enfermagem Básica, Escola de Enfermagem da Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Marcos Paulo Esteves de Oliveira
- Departamento de Morfologia, Instituto de Ciências Biológicas (ICB), Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Lucas Secchim Ribeiro
- Biomediziniches Zentrum (BMZ), Institut für Angeborene Immunität, Rheinische Friedrich-Wilhelms-Universität Bonn, Venusberg, Germany
| | - Victor Fattori
- Departamento de Patologia, Center of Biological Sciences, Londrina State University, Londrina, Brazil
| | - Walison Nunes da Silva
- Departamento de Patologia, Instituto de Ciências Biológicas (ICB), Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | | | - Celso Martins Queiroz-Junior
- Departamento de Morfologia, Instituto de Ciências Biológicas (ICB), Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Karina Talita de Oliveira Santana
- Departamento de Genética, Ecologia e Evolução, Instituto de Ciências Biológicas (ICB), Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Walyson Coelho Costa
- Departamento de Morfologia, Instituto de Ciências Biológicas (ICB), Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Vinícius Amorim Beltrami
- Departamento de Morfologia, Instituto de Ciências Biológicas (ICB), Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Vivian Vasconcelos Costa
- Departamento de Morfologia, Instituto de Ciências Biológicas (ICB), Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Alexander Birbrair
- Departamento de Patologia, Instituto de Ciências Biológicas (ICB), Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Waldiceu A Verri
- Departamento de Patologia, Center of Biological Sciences, Londrina State University, Londrina, Brazil
| | - Fernando Lopes
- Institute of Parasitology and Department of Microbiology and Immunology, McGill University, Montreal, QC, Canada
| | - Thiago Mattar Cunha
- Departamento de Farmacologia, Faculdade de Medicina de Ribeirão Preto, Universidade de São Paulo (USP), Ribeirão Preto, Brazil
| | - Mauro Martins Teixeira
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas (ICB), Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Flávio Almeida Amaral
- Departamento de Bioquímica e Imunologia, Instituto de Ciências Biológicas (ICB), Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Vanessa Pinho
- Departamento de Morfologia, Instituto de Ciências Biológicas (ICB), Universidade Federal de Minas Gerais (UFMG), Belo Horizonte, Brazil
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He BH, Christin M, Mouchbahani-Constance S, Davidova A, Sharif-Naeini R. Mechanosensitive ion channels in articular nociceptors drive mechanical allodynia in osteoarthritis. Osteoarthritis Cartilage 2017; 25:2091-2099. [PMID: 28882752 DOI: 10.1016/j.joca.2017.08.012] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/09/2017] [Revised: 08/18/2017] [Accepted: 08/29/2017] [Indexed: 02/02/2023]
Abstract
OBJECTIVE Osteoarthritis (OA) is a disabling and highly prevalent condition affecting millions worldwide. Pain is the major complaint of OA patients and is presently inadequately managed. It manifests as mechanical allodynia, a painful response to innocuous stimuli such as joint movement. Allodynia is due in part to the sensitization of articular nociceptors to mechanical stimuli. These nociceptors respond to noxious mechanical stimuli applied to their terminals via the expression of depolarizing high-threshold mechanosensitive ion channels (MSICs) that convert painful mechanical forces into electrical signals. In this study, we examined the contribution of MSICs to mechanical allodynia in a mouse model of OA. METHOD Sodium mono-iodoacetate (MIA) was injected in the left knee of adult male Trpv1:Cre; GFP mice. Primary mechanical allodynia was monitored using the knee-bend test. Single-channel patch clamp electrophysiology was performed on visually-identified knee-innervating nociceptors. Dorsal horn neuronal activation was assessed by Fos immunoreactivity. RESULTS In examining the gating properties of MSICs of naïve and OA mice, we discovered that their activation threshold is greatly reduced, causing their opening at significantly lower stimuli intensities. Consequently, nociceptors are activated by mild mechanical stimuli. These channels are reversibly inhibited by the selective MSIC inhibitor GsMTx4, and the intra-articular injection of this peptide significantly reduced the activation of dorsal horn nociceptive circuits and primary mechanical allodynia in OA mice. CONCLUSIONS These results suggest that MSICs are sensitized during OA and directly contribute to mechanical allodynia. They therefore represent potential therapeutic targets in the treatment of OA pain.
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Affiliation(s)
- B H He
- Department of Physiology and Cell Information Systems, McGill University, Canada.
| | - M Christin
- Department of Physiology and Cell Information Systems, McGill University, Canada.
| | | | - A Davidova
- Department of Physiology and Cell Information Systems, McGill University, Canada.
| | - R Sharif-Naeini
- Department of Physiology and Cell Information Systems, McGill University, Canada.
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Hulse RP, Wynick D, Donaldson LF. Activation of the galanin receptor 2 in the periphery reverses nerve injury-induced allodynia. Mol Pain 2011; 7:26. [PMID: 21496293 PMCID: PMC3101129 DOI: 10.1186/1744-8069-7-26] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/23/2010] [Accepted: 04/16/2011] [Indexed: 11/10/2022] Open
Abstract
Background Galanin is expressed at low levels in the intact sensory neurons of the dorsal root ganglia with a dramatic increase after peripheral nerve injury. The neuropeptide is also expressed in primary afferent terminals in the dorsal horn, spinal inter-neurons and in a number of brain regions known to modulate nociception. Intrathecal administration of galanin modulates sensory responses in a dose-dependent manner with inhibition at high doses. To date it is unclear which of the galanin receptors mediates the anti-nociceptive effects of the neuropeptide and whether their actions are peripherally and/or centrally mediated. In the present study we investigated the effects of direct administration into the receptive field of galanin and the galanin receptor-2/3-agonist Gal2-11 on nociceptive primary afferent mechanical responses in intact rats and mice and in the partial saphenous nerve injury (PSNI) model of neuropathic pain. Results Exogenous galanin altered the responses of mechano-nociceptive C-fibre afferents in a dose-dependent manner in both naive and nerve injured animals, with low concentrations facilitating and high concentrations markedly inhibiting mechano-nociceptor activity. Further, use of the galanin fragment Gal2-11 confirmed that the effects of galanin were mediated by activation of galanin receptor-2 (GalR2). The inhibitory effects of peripheral GalR2 activation were further supported by our demonstration that after PSNI, mechano-sensitive nociceptors in galanin over-expressing transgenic mice had significantly higher thresholds than in wild type animals, associated with a marked reduction in spontaneous neuronal firing and C-fibre barrage into the spinal cord. Conclusions These findings are consistent with the hypothesis that the high level of endogenous galanin in injured primary afferents activates peripheral GalR2, which leads to an increase in C-fibre mechanical activation thresholds and a marked reduction in evoked and ongoing nociceptive responses.
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Affiliation(s)
- Richard P Hulse
- Schools of Physiology and Pharmacology, University of Bristol, UK
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Rebelo S, Chen ZF, Anderson DJ, Lima D. Involvement of DRG11 in the development of the primary afferent nociceptive system. Mol Cell Neurosci 2006; 33:236-46. [PMID: 16978876 DOI: 10.1016/j.mcn.2006.07.013] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2006] [Revised: 07/14/2006] [Accepted: 07/26/2006] [Indexed: 10/24/2022] Open
Abstract
During development, dorsal root ganglia (DRG) neurons differentiate in various subpopulations, nociceptive neurons belonging in the small-diameter class. This study addresses the role played by DRG11, a transcription factor expressed in the spinal area of projection of small-diameter DRG neurons, in the development of the primary afferent system. The various subclasses of DRG neurons were compared between wild-type and Drg11(-/-) mice at embryonic and postnatal life. In Drg11(-/-) mice, numbers of small peptidergic and non-peptidergic DRG neurons were decreased at P7 concomitant with abnormal cell death. Innervation by small DRG neurons was impaired in cutaneous, visceral and deep tissues. Large DRG neurons were not affected. The data point to a role for DRG11 in early postnatal survival of normally generated small primary afferent neurons innervating various kinds of peripheral tissues, which would explain the nociceptive deficits observed in Drg11-null mutant mice.
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MESH Headings
- Animals
- Animals, Newborn
- Apoptosis/physiology
- Calcitonin Gene-Related Peptide/metabolism
- Caspase 3/metabolism
- Cell Count
- Embryo, Mammalian
- Ganglia, Spinal/cytology
- Ganglia, Spinal/embryology
- Ganglia, Spinal/growth & development
- Gene Expression Regulation, Developmental/genetics
- Gene Expression Regulation, Developmental/physiology
- Homeodomain Proteins/physiology
- Immunohistochemistry/methods
- In Vitro Techniques
- Knee Joint/innervation
- Lectins/metabolism
- Mice
- Mice, Knockout
- Nerve Tissue Proteins/deficiency
- Nerve Tissue Proteins/physiology
- Neurofilament Proteins/metabolism
- Neurons, Afferent/classification
- Neurons, Afferent/physiology
- Nociceptors/physiology
- Skin/innervation
- Transcription Factors/deficiency
- Transcription Factors/physiology
- Urinary Bladder/innervation
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Affiliation(s)
- Sandra Rebelo
- Laboratory of Molecular Cell Biology, University of Oporto, Porto, Portugal
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Just S, Heppelmann B. Voltage-gated calcium channels may be involved in the regulation of the mechanosensitivity of slowly conducting knee joint afferents in rat. Exp Brain Res 2003; 150:379-84. [PMID: 12698318 DOI: 10.1007/s00221-003-1465-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2002] [Accepted: 02/26/2003] [Indexed: 11/28/2022]
Abstract
Voltage-gated Ca(2+) channels play an important role in the central processing of nociceptive information. Recently, it has been shown that L- and N-type voltage-gated Ca(2+) channels are also present on peptidergic, fine afferent nerve fibers in the knee joint capsule. Therefore, the influence of specific blockers for L-type (verapamil) or N-type (omega-conotoxin GVIA) Ca(2+) channels on the mechanosensitivity of slowly conducting afferents was tested in the rat knee joint. Topical application of 100 microM verapamil onto the receptive field reduced the mean response to knee joint rotation to 67+/-8% (SEM, n=12), obtained by outward rotations with a torque of 10 mNm above the mechanical threshold and compared with control movements. In the presence of 50 microM omega-conotoxin GVIA, the mean response decreased to 44+/-5% ( n=12), a reduction that was also observed during rotations of other intensities. Simultaneous application of both substances further reduced the response to 25+/-11% ( n=6). In additional experiments it was shown that L- and N-type voltage-gated Ca(2+) channels do not influence activity-dependent changes of the mechanical excitability. In conclusion, the data of the present study indicate that voltage-gated Ca(2+) channels may also be involved in the regulation of the mechanosensitivity of nociceptive nerve fiber endings.
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Affiliation(s)
- Stefan Just
- Physiologisches Institut der Universität Würzburg, Röntgenring 9, 97070 Würzburg, Germany
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Just S, Leipold-Büttner C, Heppelmann B. Histological demonstration of voltage dependent calcium channels on calcitonin gene-related peptide-immunoreactive nerve fibres in the mouse knee joint. Neurosci Lett 2001; 312:133-6. [PMID: 11602328 DOI: 10.1016/s0304-3940(01)02199-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The afferent (excitability) and efferent functions (release of neuropeptides) of primary afferent nerve fibres are based on Ca(2+)-influx. The aim of the present study was to examine the presence of L- and N-type Ca(2+)-channels at sensory nerve fibres in the mouse knee joint capsule. Specific fluorescent labelled channel blockers and antisera against these channel subtypes were combined with an immunohistochemical staining for calcitonin gene-related peptide (CGRP), a neuropeptide that is widely distributed in primary afferents. There was a nearly complete colocalisation of CGRP immunoreactivity and the binding of omega-conotoxin GVIA (toxin VIA of Conus geographus or BODIPY-verapamil (BODIPY(R) FL verapamil, hydrochloride) demonstrating the presence of N-type and L-type Ca(2+)-channels, respectively. These data were further confirmed by identical results obtained after an immunohistochemical demonstration of the two channel subtypes at the peptidergic nerve fibres.
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Affiliation(s)
- S Just
- Physiologisches Institut der Universität Würzburg, Röntgenring 9, D-97070 Würzburg, Germany.
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