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Kubíčková L, Dubový P. Dynamics of Cellular Regulation of Fractalkine/CX3CL1 and Its Receptor CX3CR1 in the Rat Trigeminal Subnucleus Caudalis after Unilateral Infraorbital Nerve Lesion-Extended Cellular Signaling of the CX3CL1/CX3CR1 Axis in the Development of Trigeminal Neuropathic Pain. Int J Mol Sci 2024; 25:6069. [PMID: 38892268 PMCID: PMC11172820 DOI: 10.3390/ijms25116069] [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: 04/26/2024] [Revised: 05/27/2024] [Accepted: 05/28/2024] [Indexed: 06/21/2024] Open
Abstract
The cellular distribution and changes in CX3CL1/fractalkine and its receptor CX3CR1 protein levels in the trigeminal subnucleus caudalis (TSC) of rats with unilateral infraorbital nerve ligation (IONL) were investigated on postoperation days 1, 3, 7, and 14 (POD1, POD3, POD7, and POD14, respectively) and compared with those of sham-operated and naïve controls. Behavioral tests revealed a significant increase in tactile hypersensitivity bilaterally in the vibrissal pads of both sham- and IONL-operated animals from POD1 to POD7, with a trend towards normalization in sham controls at POD14. Image analysis revealed increased CX3CL1 immunofluorescence (IF) intensities bilaterally in the TSC neurons of both sham- and IONL-operated rats at all survival periods. Reactive astrocytes in the ipsilateral TSC also displayed CX3CL1-IF from POD3 to POD14. At POD1 and POD3, microglial cells showed high levels of CX3CR1-IF, which decreased by POD7 and POD14. Conversely, CX3CR1 was increased in TSC neurons and reactive astrocytes at POD7 and POD14, which coincided with high levels of CX3CL1-IF and ADAM17-IF. This indicates that CX3CL1/CX3CR1 may be involved in reciprocal signaling between TSC neurons and reactive astrocytes. The level of CatS-IF in microglial cells suggests that soluble CX3CL1 may be involved in neuron-microglial cell signaling at POD3 and POD7, while ADAM17 allows this release at all studied time points. These results indicate an extended CX3CL1/CX3CR1 signaling axis and its role in the crosstalk between TSC neurons and glial cells during the development of trigeminal neuropathic pain.
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Affiliation(s)
| | - Petr Dubový
- Cellular and Molecular Research Group, Department of Anatomy, Faculty of Medicine, Masaryk University, Kamenice 3, CZ-62500 Brno, Czech Republic;
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Moreau N, Peirs C, Dallel R, Boucher Y. [Specificities of orofacial neuropathic pain]. Med Sci (Paris) 2024; 40:64-71. [PMID: 38299905 DOI: 10.1051/medsci/2023197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2024] Open
Abstract
Head pain and notably orofacial pain differs from spinal pain on pathophysiological, clinical, therapeutic and prognostic levels. Its high prevalence, important impact on quality of life and significant socio-economical burden justify specific study of such type of pain. Among them, neuropathic orofacial pain resulting from disease or trauma of the trigeminal nervous system is among the most difficult types of pain to diagnose and to treat. Deciphering of underlying peripheral and central mechanisms has allowed numerous conceptual, clinical and therapeutic advances, notably the role of neural and non neural cell types, such as glia, immunocytes, vascular endothelial cells or the role of trigeminal sensory complex neural circuitry reconfiguration in the development of post-traumatic trigeminal neuropathic pain. Cellular interactions within the trigeminal ganglion, allowing a better understanding of several painful dental, ocular or cephalalgic comorbidities, are also described.
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Affiliation(s)
- Nathan Moreau
- Laboratoire de neurobiologie orofaciale, EA 7543, Université Paris Cité, Paris, France - Hôpital Bretonneau, Service de médecine bucco-dentaire, AP-HP, Paris, France
| | - Cédric Peirs
- Université Clermont Auvergne, CHU Clermont-Ferrand, Inserm, Neuro-Dol, Clermont-Ferrand, France
| | - Radhouane Dallel
- Université Clermont Auvergne, CHU Clermont-Ferrand, Inserm, Neuro-Dol, Clermont-Ferrand, France
| | - Yves Boucher
- Laboratoire de neurobiologie orofaciale, EA 7543, Université Paris Cité, Paris, France - Hôpital Pitié-Salpêtrière, Service de médecine bucco-dentaire, AP-HP, Paris, France
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Ryu S, Liu X, Guo T, Guo Z, Zhang J, Cao YQ. Peripheral CCL2-CCR2 signalling contributes to chronic headache-related sensitization. Brain 2023; 146:4274-4291. [PMID: 37284790 PMCID: PMC10545624 DOI: 10.1093/brain/awad191] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 04/19/2023] [Accepted: 05/01/2023] [Indexed: 06/08/2023] Open
Abstract
Migraine, especially chronic migraine, is highly debilitating and still lacks effective treatment. The persistent headache arises from activation and sensitization of primary afferent neurons in the trigeminovascular pathway, but the underlying mechanisms remain incompletely understood. Animal studies indicate that signalling through chemokine C-C motif ligand 2 (CCL2) and C-C motif chemokine receptor 2 (CCR2) mediates the development of chronic pain after tissue or nerve injury. Some migraine patients had elevated CCL2 levels in CSF or cranial periosteum. However, whether the CCL2-CCR2 signalling pathway contributes to chronic migraine is not clear. Here, we modelled chronic headache with repeated administration of nitroglycerin (NTG, a reliable migraine trigger in migraineurs) and found that both Ccl2 and Ccr2 mRNA were upregulated in dura and trigeminal ganglion (TG) tissues that are implicated in migraine pathophysiology. In Ccl2 and Ccr2 global knockout mice, repeated NTG administration did not evoke acute or persistent facial skin hypersensitivity as in wild-type mice. Intraperitoneal injection of CCL2 neutralizing antibodies inhibited chronic headache-related behaviours induced by repeated NTG administration and repetitive restraint stress, suggesting that the peripheral CCL2-CCR2 signalling mediates headache chronification. We found that CCL2 was mainly expressed in TG neurons and cells associated with dura blood vessels, whereas CCR2 was expressed in subsets of macrophages and T cells in TG and dura but not in TG neurons under both control and disease states. Deletion of Ccr2 gene in primary afferent neurons did not alter NTG-induced sensitization, but eliminating CCR2 expression in either T cells or myeloid cells abolished NTG-induced behaviours, indicating that both CCL2-CCR2 signalling in T cells and macrophages are required to establish chronic headache-related sensitization. At cellular level, repeated NTG administration increased the number of TG neurons that responded to calcitonin-gene-related peptide (CGRP) and pituitary adenylate cyclase activating polypeptide (PACAP) as well as the production of CGRP in wild-type but not Ccr2 global knockout mice. Lastly, co-administration of CCL2 and CGRP neutralizing antibodies was more effective in reversing NTG-induced behaviours than individual antibodies. Taken together, these results suggest that migraine triggers activate CCL2-CCR2 signalling in macrophages and T cells. This consequently enhances both CGRP and PACAP signalling in TG neurons, ultimately leading to persistent neuronal sensitization underlying chronic headache. Our work not only identifies the peripheral CCL2 and CCR2 as potential targets for chronic migraine therapy, but also provides proof-of-concept that inhibition of both peripheral CGRP and CCL2-CCR2 signalling is more effective than targeting either pathway alone.
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Affiliation(s)
- Sun Ryu
- Department of Anesthesiology and Washington University Pain Center, Washington University School of Medicine, Campus Box MSC 8054-86-05, St. Louis, MO 63110, USA
| | - Xuemei Liu
- Department of Anesthesiology and Washington University Pain Center, Washington University School of Medicine, Campus Box MSC 8054-86-05, St. Louis, MO 63110, USA
| | - Tingting Guo
- Department of Anesthesiology and Washington University Pain Center, Washington University School of Medicine, Campus Box MSC 8054-86-05, St. Louis, MO 63110, USA
| | - Zhaohua Guo
- Department of Anesthesiology and Washington University Pain Center, Washington University School of Medicine, Campus Box MSC 8054-86-05, St. Louis, MO 63110, USA
| | - Jintao Zhang
- Department of Anesthesiology and Washington University Pain Center, Washington University School of Medicine, Campus Box MSC 8054-86-05, St. Louis, MO 63110, USA
| | - Yu-Qing Cao
- Department of Anesthesiology and Washington University Pain Center, Washington University School of Medicine, Campus Box MSC 8054-86-05, St. Louis, MO 63110, USA
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Liu S, Lan XB, Tian MM, Zhu CH, Ma L, Yang JM, Du J, Zheng P, Yu JQ, Liu N. Targeting the chemokine ligand 2-chemokine receptor 2 axis provides the possibility of immunotherapy in chronic pain. Eur J Pharmacol 2023; 947:175646. [PMID: 36907261 DOI: 10.1016/j.ejphar.2023.175646] [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: 08/29/2022] [Revised: 02/26/2023] [Accepted: 03/06/2023] [Indexed: 03/13/2023]
Abstract
Chronic pain affects patients' physical and psychological health and quality of life, entailing a tremendous public health challenge. Currently, drugs for chronic pain are usually associated with a large number of side effects and poor efficacy. Chemokines in the neuroimmune interface combine with their receptors to regulate inflammation or mediate neuroinflammation in the peripheral and central nervous system. Targeting chemokines and their receptor-mediated neuroinflammation is an effective means to treat chronic pain. In recent years, growing evidence has shown that the expression of chemokine ligand 2 (CCL2) and its main chemokine receptor 2 (CCR2) is involved in its occurrence, development and maintenance of chronic pain. This paper summarises the relationship between the chemokine system, CCL2/CCR2 axis, and chronic pain, and the CCL2/CCR2 axis changes under different chronic pain conditions. Targeting chemokine CCL2 and its chemokine receptor CCR2 through siRNA, blocking antibodies, or small molecule antagonists may provide new therapeutic possibilities for managing chronic pain.
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Affiliation(s)
- Shan Liu
- Department of Pharmacology, School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China.
| | - Xiao-Bing Lan
- Department of Pharmacology, School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China.
| | - Miao-Miao Tian
- Department of Pharmacology, School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China.
| | - Chun-Hao Zhu
- Department of Pharmacology, School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China.
| | - Lin Ma
- Department of Pharmacology, School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China.
| | - Jia-Mei Yang
- Department of Pharmacology, School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China.
| | - Juan Du
- Department of Pharmacology, School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China.
| | - Ping Zheng
- Department of Pharmacology, School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China.
| | - Jian-Qiang Yu
- Department of Pharmacology, School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China; Ningxia Special Traditional Medicine Modern Engineering Research Center and Collaborative Innovation Center, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China.
| | - Ning Liu
- Department of Pharmacology, School of Pharmacy, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China; Ningxia Special Traditional Medicine Modern Engineering Research Center and Collaborative Innovation Center, Ningxia Medical University, 1160 Shengli Street, Yinchuan, 750004, China.
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Pathophysiology of Post-Traumatic Trigeminal Neuropathic Pain. Biomolecules 2022; 12:biom12121753. [PMID: 36551181 PMCID: PMC9775491 DOI: 10.3390/biom12121753] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2022] [Revised: 11/11/2022] [Accepted: 11/12/2022] [Indexed: 11/29/2022] Open
Abstract
Trigeminal nerve injury is one of the causes of chronic orofacial pain. Patients suffering from this condition have a significantly reduced quality of life. The currently available management modalities are associated with limited success. This article reviews some of the common causes and clinical features associated with post-traumatic trigeminal neuropathic pain (PTNP). A cascade of events in the peripheral and central nervous system function is involved in the pathophysiology of pain following nerve injuries. Central and peripheral processes occur in tandem and may often be co-dependent. Due to the complexity of central mechanisms, only peripheral events contributing to the pathophysiology have been reviewed in this article. Future investigations will hopefully help gain insight into trigeminal-specific events in the pathophysiology of the development and maintenance of neuropathic pain secondary to nerve injury and enable the development of new therapeutic modalities.
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P2Y 14 receptor in trigeminal ganglion contributes to neuropathic pain in mice. Eur J Pharmacol 2022; 931:175211. [PMID: 35981606 DOI: 10.1016/j.ejphar.2022.175211] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Revised: 08/11/2022] [Accepted: 08/11/2022] [Indexed: 11/21/2022]
Abstract
Trigeminal nerve injury is a common complication of various dental and oral procedures, which could induce trigeminal neuropathic pain but lack effective treatments. P2 purinergic receptors have emerged as novel therapeutic targets for such pain. Recent reports implied that the P2Y14 receptor (P2Y14R) was activated and promoted orofacial inflammatory pain and migraine. However, the role and mechanism of P2Y14R in trigeminal neuropathic pain remain unknown. We induced an orofacial neuropathic pain model by chronic constriction injury of the infraorbital nerve (CCI-ION). Von-Frey tests showed that CCI-ION induced orofacial mechanical hypersensitivity. The increased activating transcription factor 3 (ATF3) expression in the trigeminal ganglion (TG) measured by immunofluorescence confirmed trigeminal nerve injury. Immunofluorescence showed that P2Y14R was expressed in trigeminal ganglion neurons (TGNs) and satellite glial cells (SGCs). RT-qPCR and Western blot identified increased expression of P2Y14R in TG after CCI-ION. CCI-ION also upregulated interleukin-1β (IL-1β), interleukin-6 (IL-6), C-C motif chemokine ligand 2 (CCL2), and tumor necrosis factor-α (TNF-α) in TG. Notably, CCI-ION-induced mechanical hypersensitivity and pro-inflammatory cytokines production were decreased by a P2Y14R antagonist (PPTN). Trigeminal administration of P2Y14R agonist (UDP-glucose) evoked orofacial mechanical hypersensitivity and increased pro-inflammatory cytokines above in TG. Furthermore, CCI-ION induced activation of extracellular signal-regulated kinase 1/2 (ERK1/2) and p38 in TG, which also were reduced by PPTN. The inhibitors of ERK1/2 (U0126) and p38 (SB203580) decreased these upregulated pro-inflammatory cytokines after CCI-ION. Collectively, this study revealed that P2Y14R in TG contributed to trigeminal neuropathic pain via ERK- and p38-dependent neuroinflammation. Thus, P2Y14R may be a potential drug target against trigeminal neuropathic pain.
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Aghamohammadi D, Sharifi S, Shakouri SK, Eslampour Y, Dolatkhah N. Autologous conditioned serum (Orthokine) injection for treatment of classical trigeminal neuralgia: results of a single-center case series. J Med Case Rep 2022; 16:183. [PMID: 35526052 PMCID: PMC9080139 DOI: 10.1186/s13256-022-03393-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/01/2022] [Accepted: 03/28/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Despite some advances, treatment of trigeminal neuralgia remains a significant challenge. This study determines the efficacy and safety of autologous conditioned serum (Orthokine) injection into the foramen oval to treat refractory trigeminal neuralgia. CASE PRESENTATION This is a consecutive case series from the Pain and Palliative Care Department of Imam Reza University Hospital, Tabriz, Iran. Eleven Iranian patients, eligible according to the inclusion and exclusion criteria, aged 45.64 ± 11.58 years (Four male and seven female, all Iranian) with established classical trigeminal neuralgia were injected with Orthokine (2 mL per injection) once a week for three consecutive weeks (total of four injections). Numeric rating scale scores for facial pain intensity and also carbamazepine daily dose were confirmed at pretreatment (T0) and at week 1 (T1), week 2 (T2), week 3 (T3), week 4 (T4), and month 2 (T5) posttreatment. Pain intensity was significantly reduced in the first 3 weeks of follow-up in comparison with baseline (T0 to T3) (8.18 ± 1.99 to 2.82 ± 2.13, p < 0.001), an effect that was retained at week 4 (T4) and month 2 (T5) follow-ups (2.82 ± 2.13 to 3.36 ± 2.69, p = 0.886). Carbamazepine consumption was significantly reduced in the first 3 weeks of follow-up in comparison with baseline (T0 to T3) (636.36 ± 307.48 to 200.00 ± 296.64, p = 0.003), an effect that was retained at week 4 and month 2 follow-ups (200.00 ± 296.64 to 200.00 ± 282.84, p = 0.802). There were no serious adverse events in participants. CONCLUSION Orthokine injection led to consistent pain relief and reduced carbamazepine dosage in patients with trigeminal neuralgia, with acceptable safety.
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Affiliation(s)
- Dawood Aghamohammadi
- Palliative Care Medicine Department, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Shahrzad Sharifi
- Palliative Care Medicine Department, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Seyed Kazem Shakouri
- Physical Medicine and Rehabilitation Research Center, Aging Research Institute, Tabriz University of Medical Science, Tabriz, Iran
| | - Yashar Eslampour
- Palliative Care Medicine Department, Faculty of Medicine, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Neda Dolatkhah
- Physical Medicine and Rehabilitation Research Center, Aging Research Institute, Tabriz University of Medical Science, Tabriz, Iran
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Zhu X, Xie W, Zhang J, Strong JA, Zhang JM. Sympathectomy decreases pain behaviors and nerve regeneration by downregulating monocyte chemokine CCL2 in dorsal root ganglia in the rat tibial nerve crush model. Pain 2022; 163:e106-e120. [PMID: 33941753 PMCID: PMC8556407 DOI: 10.1097/j.pain.0000000000002321] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Accepted: 04/15/2021] [Indexed: 01/03/2023]
Abstract
ABSTRACT Peripheral nerve regeneration is associated with pain in several preclinical models of neuropathic pain. Some neuropathic pain conditions and preclinical neuropathic pain behaviors are improved by sympathetic blockade. In this study, we examined the effect of a localized "microsympathectomy," ie, cutting the gray rami containing sympathetic postganglionic axons where they enter the L4 and L5 spinal nerves, which is more analogous to clinically used sympathetic blockade compared with chemical or surgical sympathectomy. We also examined manipulations of CCL2 (monocyte chemoattractant protein 1), a key player in both regeneration and pain. We used rat tibial nerve crush as a neuropathic pain model in which peripheral nerve regeneration can occur successfully. CCL2 in the sensory ganglia was increased by tibial nerve crush and reduced by microsympathectomy. Microsympathectomy and localized siRNA-mediated knockdown of CCL2 in the lumbar dorsal root ganglion had very similar effects: partial improvement of mechanical hypersensitivity and guarding behavior, reduction of regeneration markers growth-associated protein 43 and activating transcription factor 3, and reduction of macrophage density in the sensory ganglia and regenerating nerve. Microsympathectomy reduced functional regeneration as measured by myelinated action potential propagation through the injury site and denervation-induced atrophy of the tibial-innervated gastrocnemius muscle at day 10. Microsympathectomy plus CCL2 knockdown had behavioral effects similar to microsympathectomy alone. The results show that local sympathetic effects on neuropathic pain may be mediated in a large part by the effects on expression of CCL2, which in turn regulates the regeneration process.
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Affiliation(s)
- Xiaoyan Zhu
- Pain Research Center, Department of Anesthesiology, University of Cincinnati College of Medicine, Cincinnati, OH 45267, U.S.A
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan 410008, China
| | - Wenrui Xie
- Pain Research Center, Department of Anesthesiology, University of Cincinnati College of Medicine, Cincinnati, OH 45267, U.S.A
| | - Jingdong Zhang
- Pain Research Center, Department of Anesthesiology, University of Cincinnati College of Medicine, Cincinnati, OH 45267, U.S.A
| | - Judith A. Strong
- Pain Research Center, Department of Anesthesiology, University of Cincinnati College of Medicine, Cincinnati, OH 45267, U.S.A
| | - Jun-Ming Zhang
- Pain Research Center, Department of Anesthesiology, University of Cincinnati College of Medicine, Cincinnati, OH 45267, U.S.A
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Solis-Castro OO, Wong N, Boissonade FM. Chemokines and Pain in the Trigeminal System. FRONTIERS IN PAIN RESEARCH 2021; 2:689314. [PMID: 35295531 PMCID: PMC8915704 DOI: 10.3389/fpain.2021.689314] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Accepted: 06/11/2021] [Indexed: 11/13/2022] Open
Abstract
Chemotactic cytokines or chemokines are a large family of secreted proteins able to induce chemotaxis. Chemokines are categorized according to their primary amino acid sequence, and in particular their cysteine residues that form disulphide bonds to maintain the structure: CC, CXC, CX3C, and XC, in which X represents variable amino acids. Among their many roles, chemokines are known to be key players in pain modulation in the peripheral and central nervous systems. Thus, they are promising candidates for novel therapeutics that could replace current, often ineffective treatments. The spinal and trigeminal systems are intrinsically different beyond their anatomical location, and it has been suggested that there are also differences in their sensory mechanisms. Hence, understanding the different mechanisms involved in pain modulation for each system could aid in developing appropriate pharmacological alternatives. Here, we aim to describe the current landscape of chemokines that have been studied specifically with regard to trigeminal pain. Searching PubMed and Google Scholar, we identified 30 reports describing chemokines in animal models of trigeminal pain, and 15 reports describing chemokines involved in human pain associated with the trigeminal system. This review highlights the chemokines studied to date at different levels of the trigeminal system, their cellular localization and, where available, their role in a variety of animal pain models.
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Affiliation(s)
- Oscar O. Solis-Castro
- School of Clinical Dentistry, University of Sheffield, Sheffield, United Kingdom
- The Neuroscience Institute, University of Sheffield, Sheffield, United Kingdom
| | - Natalie Wong
- School of Clinical Dentistry, University of Sheffield, Sheffield, United Kingdom
- The Neuroscience Institute, University of Sheffield, Sheffield, United Kingdom
| | - Fiona M. Boissonade
- School of Clinical Dentistry, University of Sheffield, Sheffield, United Kingdom
- The Neuroscience Institute, University of Sheffield, Sheffield, United Kingdom
- *Correspondence: Fiona M. Boissonade
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Patil S, Testarelli L. Assessment of Growth Factors, Cytokines, and Cellular Markers in Saliva of Patients with Trigeminal Neuralgia. Molecules 2021; 26:molecules26102964. [PMID: 34067581 PMCID: PMC8157075 DOI: 10.3390/molecules26102964] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2021] [Revised: 05/13/2021] [Accepted: 05/14/2021] [Indexed: 11/16/2022] Open
Abstract
We proposed to perform a comparative analysis of growth factors, cytokines, and chemokine receptors on the salivary cells in the saliva obtained from trigeminal neuralgia (TN) and normal subjects. Saliva was collected from TN and healthy subjects. Salivary cells were isolated by centrifugation. The expression of the cell surface marker was analyzed by flow cytometry. A cytometric bead array was done to measure the levels of cytokines and growth factors on the flow cytometer. Saliva from TN subjects showed lower growth factor levels of Angiopoietin-2, bFGF, HGF, SCF, TGF-α, and VEGF and higher cytokine levels of IL-1β, TNF-α, CCL2, IL-17A, IL-6, and CXCL8, as well as higher expression levels of chemokine receptors CCR1 (CD191), CR3 (CD11b), CCR2 (CD192), CXCR5 (CD185), and CCR5 (CD196) in the cells from TN saliva. A certain set of cytokines and growth factors in the saliva, as well as chemokine receptors on salivary cells, could be a useful tool in the diagnostics and prognostics of trigeminal neuralgia. Trigeminal neuralgia is one of the significant pathological conditions in the class of chronic diseases around the world. Many targeted approaches are being tried by various research groups to utilize the information of the inflammatory microenvironment to resolve the pathology of chronic TN.
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Affiliation(s)
- Shankargouda Patil
- Department of Maxillofacial Surgery and Diagnostic Sciences, Division of Oral Pathology, College of Dentistry, Jazan University, Jazan 45142, Saudi Arabia
- Correspondence:
| | - Luca Testarelli
- Department of Oral and Maxillo Facial Sciences, Sapienza University of Rome, 00185 Rome, Italy;
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Jiang BC, Liu T, Gao YJ. Chemokines in chronic pain: cellular and molecular mechanisms and therapeutic potential. Pharmacol Ther 2020; 212:107581. [DOI: 10.1016/j.pharmthera.2020.107581] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2020] [Accepted: 05/15/2020] [Indexed: 02/08/2023]
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12
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Kubíčková L, Klusáková I, Dubový P. Bilateral activation of glial cells and cellular distribution of the chemokine CCL2 and its receptor CCR2 in the trigeminal subnucleus caudalis of trigeminal neuropathic pain model. Histochem Cell Biol 2020; 153:239-255. [PMID: 32020274 DOI: 10.1007/s00418-020-01850-4] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/24/2020] [Indexed: 12/26/2022]
Abstract
Glial cells activated by peripheral nerve injury contribute to the induction and maintenance of neuropathic pain by releasing neuromodulating cytokines and chemokines. We investigated the activation of microglia and astrocytes as well as the cellular distribution of the chemokine CCL2 and its receptor CCR2 in the trigeminal subnucleus caudalis (TSC) ipsilateral and contralateral to infraorbital nerve ligature (IONL). The left infraorbital nerve was ligated under aseptic conditions, and sham controls were operated without nerve ligature. Tactile hypersensitivity was significantly increased bilaterally in vibrissal pads of both sham- and IONL-operated animals from day 1 to 7 and tended to normalize in sham controls surviving for 14 days. Activated microglial cells significantly increased bilaterally in the TSC of both sham- and IONL-operated animals with a marked but gradual increase in the ipsilateral TSC from 1 to 7 days followed by a decrease by day 14. In contrast, robust activation of astrocytes was found bilaterally in the TSC of IONL-operated rats from 3 to 14 days with a transient activation in the ipsilateral TSC of sham-operated animals. Cellular distribution of CCL2 varied with survival time. CCL2 immunofluorescence was detected in neurons within 3 days and in astrocytes at later time points. In contrast, CCR2 was found only in astrocytes at all time points with CCR2 intensity being dominant in the ipsilateral TSC. In summary, our results reveal bilateral activation of microglial cells and astrocytes as well as changes in the cellular distribution of CCL2 and its receptor CCR2 in the TSC during the development and maintenance of orofacial neuropathic pain.
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Affiliation(s)
- Lucie Kubíčková
- Department of Anatomy, Cellular and Molecular Research Group, Faculty of Medicine, Masaryk University, Kamenice 3, 62500, Brno, Czech Republic
| | - Ilona Klusáková
- Department of Anatomy, Cellular and Molecular Research Group, Faculty of Medicine, Masaryk University, Kamenice 3, 62500, Brno, Czech Republic
| | - Petr Dubový
- Department of Anatomy, Cellular and Molecular Research Group, Faculty of Medicine, Masaryk University, Kamenice 3, 62500, Brno, Czech Republic.
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Abstract
OBJECTIVE Trigeminal neuralgia (TN) is a common cranial nerve disease. Inflammation is suggested in many recent studies to be involved in neuropathic pain, but its role in TN remains unclear so far. Therefore, the current study aimed to explore the relationship of inflammation with TN. METHODS The levels of inflammatory markers, such as white blood cell (WBC), neutrophil (NE), lymphocyte (LY), monocyte (MO), platelet (PLT), and albumin (ALB), as well as the neutrophil/lymphocyte ratio (NLR), derived NLR (dNLR), platelet/lymphocyte ratio (PLR), monocyte/lymphocyte ratio (MLR), and prognostic nutritional index (PNI) had been compared between TN patients and healthy controls using nonparametric tests. Moreover, multiple logistic regression models had been employed to assess the associations of inflammatory markers with TN. Besides, the receiver operating characteristic (ROC) curve was plotted to analyze the values of these inflammatory makers, as well as their matched combinations in diagnosing TN. RESULTS The levels of WBC, NE, MO, NLR, dNLR, and MLR in TN patients were evidently increased combined with those in normal subjects. In addition, multivariate logistic regression models illustrated that inflammation had close correlation with TN. Meanwhile, the area under the curve (AUC) values for NE, NLR, and dNLR, as well as those for the matched combinations of NLR+PLR, NLR+PNI, dNLR+NLR, and dNLR+PLR in TN were >0.7, which might have predictive value for TN compared with those for normal subjects. CONCLUSIONS Findings of this study reveal that inflammation could have played a close and important role in the progression and etiology of TN.
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Lin J, Zhang YY, Liu F, Fang XY, Liu MK, Huang CL, Wang H, Liao DQ, Zhou C, Shen JF. The P2Y 14 receptor in the trigeminal ganglion contributes to the maintenance of inflammatory pain. Neurochem Int 2019; 131:104567. [PMID: 31586590 DOI: 10.1016/j.neuint.2019.104567] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Revised: 09/17/2019] [Accepted: 10/02/2019] [Indexed: 02/06/2023]
Abstract
P2Y purinergic receptors expressed in neurons and satellite glial cells (SGCs) of the trigeminal ganglion (TG) contribute to inflammatory and neuropathic pain. P2Y14 receptor expression is reported in the spinal cord, dorsal root ganglion (DRG), and TG. In present study, the role of P2Y14 receptor in the TG in inflammatory orofacial pain of Sprague-Dawley (SD) rats was investigated. Peripheral injection of complete Freund's adjuvant (CFA) induced mechanical hyperalgesia with the rapid upregulation of P2Y14 receptor, glial fibrillary acidic protein (GFAP), interleukin-1β (IL-1β), tumor necrosis factor-α (TNF-α), C-C chemokine CCL2, phosphorylated extracellular signal-regulated kinase 1/2 (p-ERK1/2), and phosphorylated p38 (p-p38) proteins in the TG. Furthermore, immunofluorescence staining confirmed the CFA-induced upregulation of P2Y14 receptor. Double immunostaining showed that P2Y14 receptor colocalized with glutamine synthetase (GS) and neuronal nuclei (NeuN). Finally, trigeminal injection of a selective antagonist (PPTN) of P2Y14 receptor attenuated CFA-induced mechanical hyperalgesia. PPTN also decreased the upregulation of the GFAP, IL-1β, TNF-α, CCL2, p-ERK1/2, and p-p38 proteins. Our findings showed that P2Y14 receptor in TG may contribute to orofacial inflammatory pain via regulating SGCs activation, releasing cytokines (IL-1β, TNF-α, and CCL2), and phosphorylating ERK1/2 and p38.
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Affiliation(s)
- Jiu Lin
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Yan-Yan Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Fei Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Xin-Yi Fang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Meng-Ke Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Chao-Lan Huang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Hang Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China
| | - Da-Qing Liao
- Laboratory of Anesthesia & Critical Care Medicine, Translational Neuroscience Center, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Cheng Zhou
- Laboratory of Anesthesia & Critical Care Medicine, Translational Neuroscience Center, West China Hospital of Sichuan University, Chengdu, 610041, China
| | - Jie-Fei Shen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, 610041, China.
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Liu S, Liu X, Xiong H, Wang W, Liu Y, Yin L, Tu C, Wang H, Xiang X, Xu J, Duan B, Tao A, Zhao Z, Mei Z. CXCL13/CXCR5 signaling contributes to diabetes-induced tactile allodynia via activating pERK, pSTAT3, pAKT pathways and pro-inflammatory cytokines production in the spinal cord of male mice. Brain Behav Immun 2019; 80:711-724. [PMID: 31100371 DOI: 10.1016/j.bbi.2019.05.020] [Citation(s) in RCA: 36] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Revised: 05/05/2019] [Accepted: 05/13/2019] [Indexed: 02/06/2023] Open
Abstract
Painful diabetic neuropathy (PDN) is a severely debilitating chronic pain syndrome. Spinal chemokine CXCL13 and its receptor CXCR5 were recently demonstrated to play a pivotal role in the pathogenesis of chronic pain induced by peripheral tissue inflammation or nerve injury. In this study we investigated whether CXCL13/CXCR5 mediates PDN and the underlying spinal mechanisms. We used the db/db type 2 diabetes mice, which showed obvious hyperglycemia and obese, long-term mechanical allodynia, and increased expression of CXCL13, CXCR5 as well as pro-inflammatory cytokines TNF-α and IL-6 in the spinal cord. Furthermore, in the spinal cord of db/db mice there is significantly increased gliosis and upregulated phosphorylation of cell signaling kinases, including pERK, pAKT and pSTAT3. Mechanical allodynia and upregulated pERK, pAKT and pSTAT3 as well as production of TNF-α and IL-6 were all attenuated by the noncompetitive NMDA receptor antagonist MK-801. If spinal giving U0126 (a selective MEK inhibitor) or AG490 (a Janus kinase (JAK)-STAT inhibitor) to db/db mice, both of them can decrease the mechanical allodynia, but only inhibit pERK (by U0126) or pSTAT3 (by AG490) respectively. Acute administration of CXCL13 in C57BL/6J mice resulted in exacerbated thermal hyperalgesia and mechanical allodynia, activation of the pERK, pAKT and pSTAT3 pathways and increased production of pro-inflammatory cytokines (IL-1β, TNF-α and IL-6), which were all attenuated by knocking out of Cxcr5. In all, our work showed that chemokine CXCL13 and its receptor CXCR5 in spinal cord contribute to the pathogenesis of PDN and may help develop potential novel therapeutic approaches for patients afflicted with PDN.
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Affiliation(s)
- Sisi Liu
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Xueting Liu
- The Second Afliated Hospital, The State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, Guangzhou Medical University, Guangzhou 510260, China
| | - Hui Xiong
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Wen Wang
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Yutong Liu
- College of Life Science, South-Central University for Nationalities, Wuhan, China
| | - Liang Yin
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Chuyue Tu
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Hua Wang
- College of Life Science, South-Central University for Nationalities, Wuhan, China
| | - Xuechuan Xiang
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Jinhong Xu
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Bailu Duan
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China
| | - Ailin Tao
- The Second Afliated Hospital, The State Key Laboratory of Respiratory Disease, Guangdong Provincial Key Laboratory of Allergy & Clinical Immunology, Guangzhou Medical University, Guangzhou 510260, China
| | - Zhongqiu Zhao
- Center for the Study of Itch, Department of Anesthesiology, Washington University School of Medicine, St. Louis, MO, United States; Barnes-Jewish Hospital, St. Louis, MO, USA
| | - Zhinan Mei
- School of Pharmaceutical Sciences, South-Central University for Nationalities, Wuhan, China.
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Erdogan O, Malek M, Janal MN, Gibbs JL. Sensory testing associates with pain quality descriptors during acute dental pain. Eur J Pain 2019; 23:1701-1711. [DOI: 10.1002/ejp.1447] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 06/22/2019] [Accepted: 06/23/2019] [Indexed: 11/10/2022]
Affiliation(s)
- Ozge Erdogan
- Department of Endodontics New York University College of Dentistry New York New York
- Department of Endodontics Faculty of Dentistry, Hacettepe University Ankara Turkey
| | - Matthew Malek
- Department of Endodontics New York University College of Dentistry New York New York
| | - Malvin N. Janal
- Department of Epidemiology and Health Promotion New York University College of Dentistry New York New York
| | - Jennifer L. Gibbs
- Department of Endodontics New York University College of Dentistry New York New York
- Department of Restorative Dentistry and Biomaterials Sciences Harvard School of Dental Medicine Boston Massachusetts
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17
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Zhong L, Xiao W, Wang F, Liu J, Zhi L. miR‐21‐5p inhibits neuropathic pain development via directly targeting C‐C motif ligand 1 and tissue inhibitor of metalloproteinase‐3. J Cell Biochem 2019; 120:16614-16623. [PMID: 31161659 DOI: 10.1002/jcb.28920] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2018] [Revised: 03/03/2019] [Accepted: 03/15/2019] [Indexed: 12/21/2022]
Affiliation(s)
- Liang Zhong
- Department of Anesthesiology, Wuhan Children's Hospital (Wuhan Maternal and Child Healthcare Hospital), Tongji Medical College Huazhong University of Science & Technology Wuhan China
| | - Weimin Xiao
- The Department of Anesthesiology, Union Hospital, Tongji Medical College Huazhong University of Science and Technology Wuhan China
| | - Fang Wang
- School of Medicine Tongji University Shanghai China
| | - Juan Liu
- Xuzhou Medical University Huai'an China
| | - Li‐Jun Zhi
- Department of Anesthesiology, Huai'an Second People' Hospital and The Affiliated Huai'an Hospital of Xuzhou Medical University Huai'an Jiangsu China
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18
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Lin J, Liu F, Zhang YY, Song N, Liu MK, Fang XY, Liao DQ, Zhou C, Wang H, Shen JF. P2Y 14 receptor is functionally expressed in satellite glial cells and mediates interleukin-1β and chemokine CCL2 secretion. J Cell Physiol 2019; 234:21199-21210. [PMID: 31032956 DOI: 10.1002/jcp.28726] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2018] [Revised: 04/08/2019] [Accepted: 04/10/2019] [Indexed: 02/05/2023]
Abstract
Satellite glial cells (SGCs) activation in the trigeminal ganglia (TG) is critical in various abnormal orofacial sensation in nerve injury and inflammatory conditions. SGCs express several subtypes of P2 purinergic receptors contributing to the initiation and maintenance of neuropathic pain. The P2Y14 receptor, a G-protein-coupled receptor activated by uridine diphosphate (UDP)-glucose and other UDP sugars, mediates various physiologic events such as immune, inflammation, and pain. However, the expression, distribution, and function of P2Y14 receptor in SGCs remains largely unexplored. Our study reported the expression and functional identification of P2Y14 receptor in SGCs. SGCs were isolated from TG of rat, and the P2Y14 receptor expression was examined using immunofluorescence technique. Cell proliferation and viability were examined via cell counting kit-8 experiment. Immunofluorescence demonstrated the presence of P2Y14 receptor in SGCs. Immunofluorescence and western blot showed that UDP-glucose treatment upregulated glial fibrillary acid protein, a common marker for glial activation. Extracellular UDP-glucose enhanced the phosphorylation of extracellular signal-regulated kinase (ERK), c-Jun N-terminal kinase (JNK), and p38, which were both abolished by the P2Y14 receptor inhibitor (PPTN). Furthermore, quantitative reverse transcription polymerase chain reaction and enzyme-linked immunosorbent assay demonstrated that extracellular UDP-glucose significantly enhanced interleukin-1β (IL-1β) and chemokine CCL2 (CCL2) release, which was abolished by PPTN and significantly decreased by inhibitors of MEK/ERK (U0126) and p38 (SB202190). Our findings directly proved the functional presence of P2Y14 receptor in SGCs. It was also verified that P2Y14 receptor activation was involved in activating SGCs, phosphorylating MAPKs, and promoting the secretion of IL-1β and CCL2 via ERK and p38 pathway.
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Affiliation(s)
- Jiu Lin
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Fei Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Yan-Yan Zhang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Ning Song
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Meng-Ke Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Xin-Yi Fang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Da-Qing Liao
- Laboratory of Anesthesia & Critical Care Medicine, Translational Neuroscience Center, West China Hospital of Sichuan University, Chengdu, China
| | - Cheng Zhou
- Laboratory of Anesthesia & Critical Care Medicine, Translational Neuroscience Center, West China Hospital of Sichuan University, Chengdu, China
| | - Hang Wang
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - Jie-Fei Shen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
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19
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Marek V, Potey A, Réaux-Le-Goazigo A, Reboussin E, Charbonnier A, Villette T, Baudouin C, Rostène W, Denoyer A, Mélik Parsadaniantz S. Blue light exposure in vitro causes toxicity to trigeminal neurons and glia through increased superoxide and hydrogen peroxide generation. Free Radic Biol Med 2019; 131:27-39. [PMID: 30496813 DOI: 10.1016/j.freeradbiomed.2018.11.029] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2018] [Revised: 11/22/2018] [Accepted: 11/22/2018] [Indexed: 01/08/2023]
Abstract
Today the noxiousness of blue light from natural and particularly artificial (fluorescent tubes, LED panels, visual displays) sources is actively discussed in the context of various ocular diseases. Many of them have an important neurologic component and are associated with ocular pain. This neuropathic signal is provided by nociceptive neurons from trigeminal ganglia. However, the phototoxicity of blue light on trigeminal neurons has not been explored so far. The aim of the present in vitro study was to investigate the cytotoxic impact of various wavebands of visible light (410-630 nm) on primary cell culture of mouse trigeminal neural and glial cells. Three-hour exposure to narrow wavebands of blue light centered at 410, 440 and 480 nm of average 1.1 mW/cm2 irradiance provoked cell death, altered cell morphology and induced oxidative stress and inflammation. These effects were not observed for other tested visible wavebands. We observed that neurons and glial cells processed the light signal in different manner, in terms of resulting superoxide and hydrogen peroxide generation, inflammatory biomarkers expression and phototoxic mitochondrial damage. We analyzed the pathways of photic signal reception, and we proposed that, in trigeminal cells, in addition to widely known mitochondria-mediated light absorption, light could be received by means of non-visual opsins, melanopsin (opn4) and neuropsin (opn5). We also investigated the mechanisms underlying the observed phototoxicity, further suggesting an important role of the endoplasmic reticulum in neuronal transmission of blue-light-toxic message. Taken together, our results give some insight into circuit of tangled pain and photosensitivity frequently observed in patients consulting for these ocular symptoms.
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Affiliation(s)
- V Marek
- R&D, Essilor International, Paris, France; Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France.
| | - A Potey
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France
| | | | - E Reboussin
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France
| | - A Charbonnier
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France
| | - T Villette
- R&D, Essilor International, Paris, France
| | - C Baudouin
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France; Centre Hospitalier Nationale d'Ophtalmologie des Quinze-Vingts, Paris, France; Versailles-Saint-Quentin-en-Yvelines Université, Versailles, France
| | - W Rostène
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France
| | - A Denoyer
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France; Centre Hospitalier Nationale d'Ophtalmologie des Quinze-Vingts, Paris, France; CHU Robert Debré, Université Reims Champagne-Ardenne, Reims, France
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20
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Melik Parsadaniantz S, Rostène W, Baudouin C, Réaux-Le Goazigo A. [Understanding chronic ocular pain]. Biol Aujourdhui 2018; 212:1-11. [PMID: 30362450 DOI: 10.1051/jbio/2018017] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Indexed: 11/15/2022]
Abstract
Dry eye disease (DED) is a common chronic condition with multifactorial etiologies that is increasing in prevalence worldwide, up to 20% in the elderly. The economic burden and impact of DED on vision, quality of life, work productivity, psychological and physical impact of pain, are considerable. Chronic ocular pain is the most common symptom of DED and there is currently no topical ocular analgesic therapy available to treat this debilitating disease. Eye pain can be perceived as itch, irritation, dryness, grittiness, burning, aching, and light sensitivity. Ocular pain is triggered by corneal nociceptors (cornea being the most sensory innervated tissue of the body). It was clearly established that repeated direct damage to ocular surface and per se corneal nerves can cause peripheral and central sensitization mechanisms explaining the ocular pain in some patients with DED. However, the brain regions and the neuronal pathways associated with ocular pain are still unclear. Thus, a better characterization of chronic ocular pain and an understanding of the peripheral and central molecular and cellular mechanisms involved are crucial issues for developing effective management and therapeutic strategy to alleviate ocular pain. In this review, we first describe the nociceptive corneal nerve pathways and the classification and the neurochemistry of primary afferents innervating the cornea. Then, an update of the fundamental and clinical studies related to the inflammatory processes linked to ocular pain is detailed. The last part of the review presents the diagnostic tools used in clinic for evaluating corneal sensitivity and corneal inflammation.
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Affiliation(s)
| | - William Rostène
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France
| | - Christophe Baudouin
- Sorbonne Université, INSERM, CNRS, Institut de la Vision, Paris, France - Département d'Ophtalmologie III, Hôpital National des Quinze-Vingts, Paris, France - Département d'Ophtalmologie, Hôpital Ambroise Paré, APHP, Université de Versailles Saint-Quentin en Yvelines, Versailles, France
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21
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Aye-Mon A, Hori K, Kozakai Y, Nakagawa T, Hiraga S, Nakamura T, Shiraishi Y, Okuda H, Ozaki N. CCR2 upregulation in DRG neurons plays a crucial role in gastric hyperalgesia associated with diabetic gastropathy. Mol Pain 2018; 14:1744806917751322. [PMID: 29359616 PMCID: PMC5784547 DOI: 10.1177/1744806917751322] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Background Diabetic gastropathy is a complex neuromuscular dysfunction of the stomach that commonly occurs in diabetes mellitus. Diabetic patients often present with upper gastrointestinal symptoms, such as epigastric discomfort or pain. The aim of this study was to assess gastric sensation in streptozocin-induced diabetes mellitus (DM) rats and to determine the contribution of C-C motif chemokine receptor 2 (CCR2) signaling to gastric hyperalgesia. Results DM rats showed signs of neuropathy (cutaneous mechanical hyperalgesia) from two weeks after streptozocin administration until the end of the experiment. Accelerated solid gastric emptying was observed at two weeks after streptozocin administration compared to the controls. Intense gastric hyperalgesia also developed in DM rats at two weeks after streptozocin administration, which was significantly reduced after intrathecal administration of the CCR2 antagonist INCB3344. Immunochemical analysis indicated that CCR2 expression was substantially upregulated in small and medium-sized dorsal root ganglia neurons of DM rats, although the protein level of monocyte chemoattractant protein-1, the preferred ligand for CCR2, was not significantly different between the control and DM groups. Conclusions These data suggest that CCR2 activation in nociceptive dorsal root ganglia neurons plays a role in the pathogenesis of gastric hyperalgesia associated with diabetic gastropathy and that CCR2 antagonist may be a promising treatment for therapeutic intervention.
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Affiliation(s)
- Aye Aye-Mon
- 1 Department of Functional Anatomy, Graduate School of Medical Science, Kanazawa University, Ishikawa, Japan
| | - Kiyomi Hori
- 1 Department of Functional Anatomy, Graduate School of Medical Science, Kanazawa University, Ishikawa, Japan
| | - Yu Kozakai
- 1 Department of Functional Anatomy, Graduate School of Medical Science, Kanazawa University, Ishikawa, Japan
| | - Tatsuki Nakagawa
- 1 Department of Functional Anatomy, Graduate School of Medical Science, Kanazawa University, Ishikawa, Japan
| | - Shinichiro Hiraga
- 2 Department of Molecular neuroscience, Graduate school of Medicine, Osaka University, Osaka, Japan
| | - Tsuneo Nakamura
- 1 Department of Functional Anatomy, Graduate School of Medical Science, Kanazawa University, Ishikawa, Japan
| | - Yoshitake Shiraishi
- 1 Department of Functional Anatomy, Graduate School of Medical Science, Kanazawa University, Ishikawa, Japan
| | - Hiroaki Okuda
- 1 Department of Functional Anatomy, Graduate School of Medical Science, Kanazawa University, Ishikawa, Japan
| | - Noriyuki Ozaki
- 1 Department of Functional Anatomy, Graduate School of Medical Science, Kanazawa University, Ishikawa, Japan
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Araújo-Filho HG, Pereira EWM, Campos AR, Quintans-Júnior LJ, Quintans JSS. Chronic orofacial pain animal models - progress and challenges. Expert Opin Drug Discov 2018; 13:949-964. [PMID: 30220225 DOI: 10.1080/17460441.2018.1524458] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
INTRODUCTION Chronic orofacial pain is one of the most common pain conditions experienced by adults. Animal models are often selected as the most useful scientific methodology to explore the pathophysiology of the disorders that cause this disabling pain to facilitate the development of new treatments. The creation of new models or the improvement of existing ones is essential for finding new ways to approach the complex neurobiology of this type of pain. Areas covered: The authors describe and discuss a variety of animal models used in chronic orofacial pain (COFP). Furthermore, they examine in detail the mechanisms of action involved in orofacial neuropathic pain and orofacial inflammatory pain. Expert opinion: The use of animal models has several advantages in chronic orofacial pain drug discovery. Choosing an animal model that most closely represents the human disease helps to increase the chances of finding effective new therapies and is key to the successful translation of preclinical research to clinical practice. Models using genetically modified animals seem promising but have not yet been fully developed for use in chronic orofacial pain research. Although animal models have provided significant advances in the pharmacological treatment of orofacial pain, several barriers still need to be overcome for better treatment options.
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Affiliation(s)
- Heitor G Araújo-Filho
- a Laboratory of Neuroscience and Pharmacological Assays (LANEF), Department of Physiology , Federal University of Sergipe , São Cristóvão , Brazil
| | - Erik W M Pereira
- a Laboratory of Neuroscience and Pharmacological Assays (LANEF), Department of Physiology , Federal University of Sergipe , São Cristóvão , Brazil
| | - Adriana Rolim Campos
- b Experimental Biology Centre (NUBEX) , University of Fortaleza (UNIFOR) , Fortaleza , Brazil
| | - Lucindo J Quintans-Júnior
- a Laboratory of Neuroscience and Pharmacological Assays (LANEF), Department of Physiology , Federal University of Sergipe , São Cristóvão , Brazil
| | - Jullyana S S Quintans
- a Laboratory of Neuroscience and Pharmacological Assays (LANEF), Department of Physiology , Federal University of Sergipe , São Cristóvão , Brazil
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Neuropathic pain inhibitor, RAP-103, is a potent inhibitor of microglial CCL1/CCR8. Neurochem Int 2018; 119:184-189. [DOI: 10.1016/j.neuint.2017.12.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2017] [Revised: 11/26/2017] [Accepted: 12/13/2017] [Indexed: 01/10/2023]
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24
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Lipopolysaccharide-mediated inflammatory priming potentiates painful post-traumatic trigeminal neuropathy. Physiol Behav 2018; 194:497-504. [DOI: 10.1016/j.physbeh.2018.06.021] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2018] [Revised: 06/11/2018] [Accepted: 06/14/2018] [Indexed: 01/15/2023]
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25
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Takeda M, Nasu M, Kanazawa T, Takahashi M, Shimazu Y. Chemokine ligand 2/chemokine receptor 2 signaling in the trigeminal ganglia contributes to inflammatory hyperalgesia in rats. Neurosci Res 2018; 128:25-32. [DOI: 10.1016/j.neures.2017.07.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2017] [Revised: 07/04/2017] [Accepted: 07/31/2017] [Indexed: 01/04/2023]
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26
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Réaux-Le Goazigo A, Labbé A, Baudouin C, Melik Parsadaniantz S. La douleur oculaire chronique : mieux la comprendre pour mieux la traiter. Med Sci (Paris) 2017; 33:749-757. [DOI: 10.1051/medsci/20173308020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
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27
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Wright KR, Mitchell B, Santanam N. Redox regulation of microRNAs in endometriosis-associated pain. Redox Biol 2017; 12:956-966. [PMID: 28499250 PMCID: PMC5429229 DOI: 10.1016/j.redox.2017.04.037] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2017] [Revised: 04/26/2017] [Accepted: 04/30/2017] [Indexed: 12/22/2022] Open
Abstract
Endometriosis is a chronic, painful condition with unknown etiology. A differential expression of microRNAs in the endometriotic tissues from women with endometriosis with pain compared to those without suggested a plausible role for miRNA or epigenetic mechanisms in the etiology of endometriotic pain. The peritoneal milieu is involved in maintenance of endometriotic lesion and nociception. We recently showed the mechanistic role for oxidized-lipoproteins (ox-LDLs) present in peritoneal fluid (PF) in endometriosis and pain. We explored the possibility of ox-LDLs modulating the expression of miRNAs in a manner similar to PF from women with endometriosis. Expression levels of miRNAs and their predicted nociceptive and inflammatory targets were determined in PF and ox-LDL treated human endometrial cell-lines. Samples from IRB-approved and consented patients with and without endometriosis or pain were used. These were compared to endometrial cell-lines treated with various forms of oxidized-lipoproteins. RNA (including miRNAs) were isolated from treated endometrial cells and expression levels were determined using commercial miRNome arrays. Cell lysates were used in immunoblotting for inflammatory proteins using a protein array. Twenty miRNAs including isoforms of miR-29, miR-181 and let-7 were mutually differentially expressed in cells treated with PF from endometriosis patients with pain and those treated with ox-LDL components. The ox-LDLs and endo-PF treatment also produced significant overexpression of microRNA predicted target genes nerve growth factor, interleukin-6 and prostaglandin E synthase and overexpression of their downstream protein targets Mip1α and MCP1. This study showed similarities between miRNA regulation in PF from endometriotic women and ox-LDLs present in abundance in the PF of these women. Key miRNAs responsible for targeting nociceptive and inflammatory molecules were downregulated in the presence of ox-LDLs and endo-PF, thus playing a role in the etiology of endometriotic pain. These redox-sensitive miRNAs can be of potential use as targets in the treatment of endometriosis-associated pain.
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Affiliation(s)
- Kristeena Ray Wright
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA
| | - Brenda Mitchell
- Department of Obstetrics and Gynecology, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA
| | - Nalini Santanam
- Department of Biomedical Sciences, Joan C. Edwards School of Medicine, Marshall University, Huntington, WV 25755, USA.
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Michot B, Deumens R, Hermans E. Immunohistochemical comparison of astrocytic mGluR5 upregulation in infraorbital nerve- versus sciatic nerve-ligated rat. Neurosci Lett 2017; 653:113-119. [PMID: 28533177 DOI: 10.1016/j.neulet.2017.05.035] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2017] [Revised: 05/13/2017] [Accepted: 05/17/2017] [Indexed: 01/16/2023]
Abstract
The differential pharmacological responsiveness of cephalic and extra-cephalic neuropathic pain has been proposed to relate to distinct mechanisms that may involve neuroinflammatory reactions mediated by glial cells. Astrocytes are particularly important for neuronal sensitization in neuropathic pain, in part through modulation of glutamatergic transmission. Because the metabotropic glutamate receptor 5 (mGluR5) is involved in the astrocytic regulation of the glutamatergic system, we investigated modifications of its expression in models of cephalic versus extra-cephalic neuropathic pain. Adult male rats underwent unilateral chronic constriction injury (CCI) of either the infraorbital nerve (ION) or the sciatic nerve (SN). Seven days later, mGluR5 and the astrocyte marker GFAP (glial fibrillary acidic protein) were overexpressed and appeared localized mainly in the superficial lamina of the trigeminal nucleus in CCI-ION and the spinal cord dorsal horn in CCI-SN rats. In addition, colocalization of GFAP and mGluR5 strongly suggested an increase of astrocytic mGluR5 expression in nerve-injured rats compared to sham animals. The present data show an upregulation of astrocytic mGluR5 in central structures in both CCI-ION and CCI-SN. This suggests that the pharmacological modulation of mGluR5 could be a new approach to reduce both cephalic and extra-cephalic neuropathic pain.
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Affiliation(s)
- Benoit Michot
- Institute of Neuroscience, Université catholique de Louvain, Avenue Hippocrate B1.54.10, 1200 Brussels, Belgium.
| | - Ronald Deumens
- Institute of Neuroscience, Université catholique de Louvain, Avenue Hippocrate B1.54.10, 1200 Brussels, Belgium
| | - Emmanuel Hermans
- Institute of Neuroscience, Université catholique de Louvain, Avenue Hippocrate B1.54.10, 1200 Brussels, Belgium
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29
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Peng YF, Wei Y, Qin YH, Wei YS, Teng YJ. A relationship between absolute monocyte count and C-reactive protein in patients with migraine undergoing no pharmacological therapy. Clin Chem Lab Med 2017; 54:e249-51. [PMID: 26845725 DOI: 10.1515/cclm-2015-1196] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Accepted: 01/06/2016] [Indexed: 01/25/2023]
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30
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Zhang Q, Zhu MD, Cao DL, Bai XQ, Gao YJ, Wu XB. Chemokine CXCL13 activates p38 MAPK in the trigeminal ganglion after infraorbital nerve injury. Inflammation 2017; 40:762-769. [DOI: 10.1007/s10753-017-0520-x] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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31
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Moreau N, Dieb W, Mauborgne A, Bourgoin S, Villanueva L, Pohl M, Boucher Y. Hedgehog Pathway-Mediated Vascular Alterations Following Trigeminal Nerve Injury. J Dent Res 2016; 96:450-457. [PMID: 27856965 DOI: 10.1177/0022034516679395] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Whereas neurovascular interactions in spinal neuropathic pain models have been well characterized, little attention has been given to such neurovascular interactions in orofacial neuropathic pain models. This study investigated in male Sprague-Dawley rats the vascular changes following chronic constriction injury (CCI) of the infraorbital nerve (IoN), a broadly validated preclinical model of orofacial neuropathic pain. Following IoN-CCI, an early downregulation of tight junction proteins Claudin-1 and Claudin-5 was observed within the endoneurium and perineurium, associated with increased local accumulation of sodium fluorescein (NaFlu) within the IoN parenchyma, as compared with sham animals. These events were evidence of local blood-nerve barrier disruption and increased vascular permeability. A significant upregulation of immunocytes (CD3, CD11b) and innate immunity (TLR2, TLR4) mRNA markers was also observed, suggestive of increased local inflammation. Finally, a significant downregulation of Hedgehog pathway readouts Patched-1 and Gli-1 was observed within the IoN after CCI and local injections of cyclopamine, a Hedgehog pathway inhibitor, replicated in naïve rats the molecular, vascular, and behavioral changes observed following IoN-CCI. These results suggest a major role of Hedgehog pathway inhibition in mediating local increased endoneurial and perineurial vascular permeability following trigeminal nerve injury, thus facilitating immunocytes infiltration, neuroinflammation development, and neuropathic pain-like aversive behavior.
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Affiliation(s)
- N Moreau
- 1 Centre de Psychiatrie et Neurosciences, Inserm U894, Paris, France.,2 Hôpital Bretonneau (AP-HP) & Faculté de chirurgie dentaire, Université Paris Descartes, Paris, France
| | - W Dieb
- 1 Centre de Psychiatrie et Neurosciences, Inserm U894, Paris, France.,3 Groupe Hospitalier Pitié Salpêtrière, Université Paris Diderot, Paris, France
| | - A Mauborgne
- 1 Centre de Psychiatrie et Neurosciences, Inserm U894, Paris, France
| | - S Bourgoin
- 1 Centre de Psychiatrie et Neurosciences, Inserm U894, Paris, France
| | - L Villanueva
- 1 Centre de Psychiatrie et Neurosciences, Inserm U894, Paris, France
| | - M Pohl
- 1 Centre de Psychiatrie et Neurosciences, Inserm U894, Paris, France
| | - Y Boucher
- 1 Centre de Psychiatrie et Neurosciences, Inserm U894, Paris, France.,3 Groupe Hospitalier Pitié Salpêtrière, Université Paris Diderot, Paris, France
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Dieb W, Ouachikh O, Alves S, Boucher Y, Durif F, Hafidi A. Nigrostriatal dopaminergic depletion increases static orofacial allodynia. J Headache Pain 2016; 17:11. [PMID: 26885825 PMCID: PMC4757596 DOI: 10.1186/s10194-016-0607-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 02/12/2016] [Indexed: 01/05/2023] Open
Abstract
Background This study investigated mesencephalic dopamine depletion effects on static mechanical allodynia (SMA) elicited by chronic constriction of the infraorbitary nerve (CCI-IoN). Methods Dopamine depletion (6-OHDA administration into the medial forebrain bundle) effects on CCI-IoN-induced SMA were explored using behavioral (nocifensive behavior score upon non-noxious stimuli using von Frey filament), pharmacological (bromocriptine injections) and immunohistochemical (PKCγ and pERK1/2) techniques. Results The central dopamine depletion increased significantly the SMA score. Intraperitoneal and intracisternal injections of bromocriptine alleviated the allodynic behavior observed in both CCI-IoN and CCI-IoN + 6-OHDA animal groups. At the cellular level, dopamine depletion induced a significant increase in PKCγ expression in the medullary dorsal horn (MDH) in rat with CCI-IoN + 6-OHDA when compared to sham animals (CCI-IoN only). Similarly, after static non-noxious stimuli, the expression of pain marker proteins pERK1/2 within the MDH revealed significantly a higher number of positive cells in CCI-IoN + 6-OHDA rats when compared to the CCI-IoN group. Conclusion This study demonstrates that nigrostriatal dopamine depletion exacerbates the neuropathic pain resulting from CCI-IoN. This effect is probably due to an action through descending pain inhibitory systems which increased pain sensitization at the MDH level. It demonstrates also an analgesic effect elicited by D2R activation at the segmental level. Electronic supplementary material The online version of this article (doi:10.1186/s10194-016-0607-z) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Wisam Dieb
- UFR Odontologie, Université Paris Diderot, Paris, France. .,Centre de Psychiatrie et Neurosciences, INSERM U894, Paris, France. .,Clermont Université, Université d'Auvergne, EA7280, Clermont-Ferrand, France.
| | - Omar Ouachikh
- Clermont Université, Université d'Auvergne, EA7280, Clermont-Ferrand, France.
| | - Sofia Alves
- Clermont Université, Université d'Auvergne, EA7280, Clermont-Ferrand, France.
| | - Yves Boucher
- UFR Odontologie, Université Paris Diderot, Paris, France. .,Centre de Psychiatrie et Neurosciences, INSERM U894, Paris, France.
| | - Franck Durif
- Clermont Université, Université d'Auvergne, EA7280, Clermont-Ferrand, France. .,CHU Clermont-Ferrand, Service de Neurologie, 63000, Clermont-Ferrand, France.
| | - Aziz Hafidi
- Clermont Université, Université d'Auvergne, EA7280, Clermont-Ferrand, France.
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Nagata E, Fujii N, Hosomichi K, Mitsunaga S, Suzuki Y, Mashimo Y, Tsukamoto H, Satoh T, Osawa M, Inoue I, Hata A, Takizawa S. Possible association between dysfunction of vitamin D binding protein (GC Globulin) and migraine attacks. PLoS One 2014; 9:e105319. [PMID: 25147936 PMCID: PMC4141767 DOI: 10.1371/journal.pone.0105319] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/10/2014] [Accepted: 07/21/2014] [Indexed: 01/03/2023] Open
Abstract
To identify the genetic causality of migraine and acute, severe melalgia, we performed a linkage analysis and exome sequencing in a family with four affected individuals. We identified a variant (R21L) in exon 2 of the GC globulin gene, which is involved in the transportation of vitamin D metabolites and acts as a chemotaxic factor; this variant was co-segregated within the family. To investigate the relationship between GC globulin and melalgia, we investigated the cytokine levels in serum samples from the patients and control subjects using a cytokine antibody array. GC globulin can bind to both MCP-1 and RANTES in human serum but has a higher affinity to MCP-1. In cell culture systems, MCP-1 was able to bind to overexpressed wild-type GC globulin but not to the GC globulin variant, and the GC globulin binding affinity to MCP-1 was significantly lower in sera from the patients than in sera from control subjects. A higher concentration of MCP-1 was also observed in sera from the patients. Thus, the dysfunctional GC globulin affected cytokine release, especially the release of MCP-1, and MCP-1 might play important roles in melalgia and migraine.
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Affiliation(s)
- Eiichiro Nagata
- Department of Neurology, Tokai University School of Medicine, Isehara, Japan
- * E-mail:
| | - Natsuko Fujii
- Department of Neurology, Tokai University School of Medicine, Isehara, Japan
| | - Kazuyoshi Hosomichi
- Division of Human Genetics, Department of Integrated Genetics, National Institute of Genetics, Mishima, Japan
| | - Shigeki Mitsunaga
- Department of Molecular Life Science, Division of Basic Medical Science and Molecular Medicine, Tokai University School of Medicine, Isehara, Japan
| | - Yoichi Suzuki
- Division of Genetic Epidemiology Research Support, Tohoku University School of Medicine, Sendai, Japan
| | - Yoichi Mashimo
- Department of Public Health, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Hideo Tsukamoto
- Educational and Research Center, Tokai University School of Medicine, Isehara, Japan
| | - Tadayuki Satoh
- Educational and Research Center, Tokai University School of Medicine, Isehara, Japan
| | - Motoki Osawa
- Department of Forensic Medicine, Tokai University School of Medicine, Isehara, Japan
| | - Ituro Inoue
- Division of Human Genetics, Department of Integrated Genetics, National Institute of Genetics, Mishima, Japan
| | - Akira Hata
- Department of Public Health, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Shunya Takizawa
- Department of Neurology, Tokai University School of Medicine, Isehara, Japan
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