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Hestehave S, Allen HN, Gomez K, Duran P, Calderon-Rivera A, Loya-López S, Rodríguez-Palma EJ, Khanna R. Small molecule targeting NaV1.7 via inhibition of CRMP2-Ubc9 interaction reduces pain-related outcomes in a rodent osteoarthritic model. Pain 2024:00006396-990000000-00667. [PMID: 39106443 DOI: 10.1097/j.pain.0000000000003357] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2024] [Accepted: 05/30/2024] [Indexed: 08/09/2024]
Abstract
ABSTRACT Osteoarthritis (OA) is a highly prevalent and disabling joint disease, characterized by pathological progressive joint deformation and clinical symptoms of pain. Disease-modifying treatments remain unavailable, and pain-mitigation is often suboptimal, but recent studies suggest beneficial effects by inhibition of the voltage-gated sodium channel NaV1.7. We previously identified compound 194 as an indirect inhibitor of NaV1.7 by preventing SUMOylation of the NaV1.7-trafficking protein, collapsin response mediator protein 2. Compound 194 reduces the functional activity of NaV1.7 channels and produces effective analgesia in a variety of acute and neuropathic pain models. However, its effectiveness has not yet been evaluated in models of OA. Here, we explore the effects of 194 on pain-related outcomes in the OA-like monoiodoacetate model using behavioral assessment, biochemistry, novel in vivo fiber photometry, and patch clamp electrophysiology. We found that the monoiodoacetate model induced (1) increased pain-like behaviors and calcium responses of glutamatergic neurons in the parabrachial nucleus after evoked cold and mechanical stimuli, (2) conditioned place aversion to mechanical stimulation, (3) functional weight bearing asymmetry, (4) increased sodium currents in dorsal root ganglia neurons, and (5) increased calcitonin gene-related peptide-release in the spinal cord. Crucially, administration of 194 improved all these pain-related outcomes. Collectively, these findings support indirect inhibition of NaV1.7 as an effective treatment of OA-related pain through the inhibition of collapsin response mediator protein 2-SUMOylation via compound 194.
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Affiliation(s)
- Sara Hestehave
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, NY, United States
- Pain Research Center, New York University, New York, NY, United States. Dr. Hestehave is now with the Department of Experimental Medicine, University of Copenhagen, Copenhagen N, Denmark. Dr. Allen, Dr. Gomez, Dr. Calderon-Rivera, Dr. Loya-López, Dr. Rodríguez-Palma, and Dr. Khanna are now with the Department of Pharmacology & Therapeutics, University of Florida College of Medicine, Gainesville, FL, United States
| | - Heather N Allen
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, NY, United States
- Pain Research Center, New York University, New York, NY, United States. Dr. Hestehave is now with the Department of Experimental Medicine, University of Copenhagen, Copenhagen N, Denmark. Dr. Allen, Dr. Gomez, Dr. Calderon-Rivera, Dr. Loya-López, Dr. Rodríguez-Palma, and Dr. Khanna are now with the Department of Pharmacology & Therapeutics, University of Florida College of Medicine, Gainesville, FL, United States
| | - Kimberly Gomez
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, NY, United States
- Pain Research Center, New York University, New York, NY, United States. Dr. Hestehave is now with the Department of Experimental Medicine, University of Copenhagen, Copenhagen N, Denmark. Dr. Allen, Dr. Gomez, Dr. Calderon-Rivera, Dr. Loya-López, Dr. Rodríguez-Palma, and Dr. Khanna are now with the Department of Pharmacology & Therapeutics, University of Florida College of Medicine, Gainesville, FL, United States
| | - Paz Duran
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, NY, United States
- Pain Research Center, New York University, New York, NY, United States. Dr. Hestehave is now with the Department of Experimental Medicine, University of Copenhagen, Copenhagen N, Denmark. Dr. Allen, Dr. Gomez, Dr. Calderon-Rivera, Dr. Loya-López, Dr. Rodríguez-Palma, and Dr. Khanna are now with the Department of Pharmacology & Therapeutics, University of Florida College of Medicine, Gainesville, FL, United States
| | - Aida Calderon-Rivera
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, NY, United States
- Pain Research Center, New York University, New York, NY, United States. Dr. Hestehave is now with the Department of Experimental Medicine, University of Copenhagen, Copenhagen N, Denmark. Dr. Allen, Dr. Gomez, Dr. Calderon-Rivera, Dr. Loya-López, Dr. Rodríguez-Palma, and Dr. Khanna are now with the Department of Pharmacology & Therapeutics, University of Florida College of Medicine, Gainesville, FL, United States
| | - Santiago Loya-López
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, NY, United States
- Pain Research Center, New York University, New York, NY, United States. Dr. Hestehave is now with the Department of Experimental Medicine, University of Copenhagen, Copenhagen N, Denmark. Dr. Allen, Dr. Gomez, Dr. Calderon-Rivera, Dr. Loya-López, Dr. Rodríguez-Palma, and Dr. Khanna are now with the Department of Pharmacology & Therapeutics, University of Florida College of Medicine, Gainesville, FL, United States
| | - Erick J Rodríguez-Palma
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, NY, United States
- Pain Research Center, New York University, New York, NY, United States. Dr. Hestehave is now with the Department of Experimental Medicine, University of Copenhagen, Copenhagen N, Denmark. Dr. Allen, Dr. Gomez, Dr. Calderon-Rivera, Dr. Loya-López, Dr. Rodríguez-Palma, and Dr. Khanna are now with the Department of Pharmacology & Therapeutics, University of Florida College of Medicine, Gainesville, FL, United States
| | - Rajesh Khanna
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, NY, United States
- Pain Research Center, New York University, New York, NY, United States. Dr. Hestehave is now with the Department of Experimental Medicine, University of Copenhagen, Copenhagen N, Denmark. Dr. Allen, Dr. Gomez, Dr. Calderon-Rivera, Dr. Loya-López, Dr. Rodríguez-Palma, and Dr. Khanna are now with the Department of Pharmacology & Therapeutics, University of Florida College of Medicine, Gainesville, FL, United States
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Håkansson J, Juhlin O, Hovannisyan A, Rosendahl J, Bogestål Y, Olmarker K. Changes in ion-channels in the dorsal root ganglion after exposure to autologous nucleus pulposus and TNF. A rat experimental study. J Orthop 2024; 47:23-27. [PMID: 38046450 PMCID: PMC10689205 DOI: 10.1016/j.jor.2023.11.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Accepted: 11/03/2023] [Indexed: 12/05/2023] Open
Abstract
Purpose It is known that contact of nucleus pulposus with the dorsal root ganglion may induce changes in nerve conduction and pain behavior. It has also been suggested that the behavioristic changes are caused by changes in voltage-gated ion channels, which in turn have been upregulated by TNF. Such upregulations have previously been shown for NaV 1.8 and NaV 1.9. In this investigation, we expanded the number of studied ion channels after the application of nucleus pulposus or TNF. Methods Following removal of the left L4-5 fact joint, a disc puncture was performed and the dorsal root ganglion was exposed to nucleus pulposus (n = 5) and TNF (n = 5). Operated rats without disc puncture served as sham (n = 5) and 5 non-operated (naïve) rats were included. After 24 h, the DRGs were harvested and analyzed by quantitative PCR on validated pre-spotted primer plates displaying genes for 90 voltage-gated ion channels. Results It was evident that the changes in operated animals were separate from the naïve rats. It was also apparent that gene expression changes in rats with nucleus pulposus or TNF application showed similar trends and were also separated from sham-operated animals. Conclusion The application of nucleus pulposus and TNF onto the DRG in rats induces comparable changes in gene expression of several ion channels. Since the changes induced by TNF and NP are similar, one might also suspect that TNF mediates the NP-induced changes. However, such a mechanism needs further investigation.
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Affiliation(s)
- Joakim Håkansson
- RISE Research Institutes of Sweden, Unit of Biological Function, Division Materials and Production, Borås, Sweden
- Department of Laboratory Medicine, Institute of Biomedicine, University of Gothenburg, Gothenburg, Sweden
- Department of Chemistry and Molecular Biology, University of Gothenburg, Gothenburg, Sweden
| | - Oskar Juhlin
- Musculoskeletal Research, Department of Medical Chemistry and Cell Biology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Armen Hovannisyan
- Musculoskeletal Research, Department of Medical Chemistry and Cell Biology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Jennifer Rosendahl
- RISE Research Institutes of Sweden, Unit of Biological Function, Division Materials and Production, Borås, Sweden
| | - Yalda Bogestål
- RISE Research Institutes of Sweden, Unit of Biological Function, Division Materials and Production, Borås, Sweden
| | - Kjell Olmarker
- Musculoskeletal Research, Department of Medical Chemistry and Cell Biology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
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Gomez K, Stratton HJ, Duran P, Loya S, Tang C, Calderon-Rivera A, François-Moutal L, Khanna M, Madura CL, Luo S, McKiver B, Choi E, Ran D, Boinon L, Perez-Miller S, Damaj MI, Moutal A, Khanna R. Identification and targeting of a unique Na V1.7 domain driving chronic pain. Proc Natl Acad Sci U S A 2023; 120:e2217800120. [PMID: 37498871 PMCID: PMC10410761 DOI: 10.1073/pnas.2217800120] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Accepted: 06/27/2023] [Indexed: 07/29/2023] Open
Abstract
Small molecules directly targeting the voltage-gated sodium channel (VGSC) NaV1.7 have not been clinically successful. We reported that preventing the addition of a small ubiquitin-like modifier onto the NaV1.7-interacting cytosolic collapsin response mediator protein 2 (CRMP2) blocked NaV1.7 function and was antinociceptive in rodent models of neuropathic pain. Here, we discovered a CRMP2 regulatory sequence (CRS) unique to NaV1.7 that is essential for this regulatory coupling. CRMP2 preferentially bound to the NaV1.7 CRS over other NaV isoforms. Substitution of the NaV1.7 CRS with the homologous domains from the other eight VGSC isoforms decreased NaV1.7 currents. A cell-penetrant decoy peptide corresponding to the NaV1.7-CRS reduced NaV1.7 currents and trafficking, decreased presynaptic NaV1.7 expression, reduced spinal CGRP release, and reversed nerve injury-induced mechanical allodynia. Importantly, the NaV1.7-CRS peptide did not produce motor impairment, nor did it alter physiological pain sensation, which is essential for survival. As a proof-of-concept for a NaV1.7 -targeted gene therapy, we packaged a plasmid encoding the NaV1.7-CRS in an AAV virus. Treatment with this virus reduced NaV1.7 function in both rodent and rhesus macaque sensory neurons. This gene therapy reversed and prevented mechanical allodynia in a model of nerve injury and reversed mechanical and cold allodynia in a model of chemotherapy-induced peripheral neuropathy. These findings support the conclusion that the CRS domain is a targetable region for the treatment of chronic neuropathic pain.
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Affiliation(s)
- Kimberly Gomez
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, NY10010
- NYU Pain Research Center, New York, NY10010
| | - Harrison J. Stratton
- Department of Pharmacology, College of Medicine, The University of Arizona, Tucson, AZ85724
| | - Paz Duran
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, NY10010
- NYU Pain Research Center, New York, NY10010
| | - Santiago Loya
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, NY10010
- NYU Pain Research Center, New York, NY10010
| | - Cheng Tang
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, NY10010
- NYU Pain Research Center, New York, NY10010
| | - Aida Calderon-Rivera
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, NY10010
- NYU Pain Research Center, New York, NY10010
| | | | - May Khanna
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, NY10010
- NYU Pain Research Center, New York, NY10010
| | - Cynthia L. Madura
- Department of Pharmacology, College of Medicine, The University of Arizona, Tucson, AZ85724
| | - Shizhen Luo
- Department of Pharmacology, College of Medicine, The University of Arizona, Tucson, AZ85724
| | - Bryan McKiver
- Department of Pharmacology and Toxicology and Translational Research Initiative for Pain and Neuropathy, Virginia Commonwealth University, Richmond, VA 23298-0613
| | - Edward Choi
- Department of Pharmacology and Toxicology and Translational Research Initiative for Pain and Neuropathy, Virginia Commonwealth University, Richmond, VA 23298-0613
| | - Dongzhi Ran
- Department of Pharmacology, College of Medicine, The University of Arizona, Tucson, AZ85724
| | - Lisa Boinon
- Department of Pharmacology, College of Medicine, The University of Arizona, Tucson, AZ85724
| | - Samantha Perez-Miller
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, NY10010
- NYU Pain Research Center, New York, NY10010
| | - M. Imad Damaj
- Department of Pharmacology and Toxicology and Translational Research Initiative for Pain and Neuropathy, Virginia Commonwealth University, Richmond, VA 23298-0613
| | - Aubin Moutal
- Department of Pharmacology and Physiology, School of Medicine, St. Louis University, St. Louis, MO63104
| | - Rajesh Khanna
- Department of Molecular Pathobiology, College of Dentistry, New York University, New York, NY10010
- NYU Pain Research Center, New York, NY10010
- Department of Neuroscience and Physiology and Neuroscience Institute, School of Medicine, New York University, New York, NY10010
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Rohanifar M, Clayton SW, Easson GW, Patil DS, Lee F, Jing L, Barcellona MN, Speer JE, Stivers JJ, Tang SY, Setton LA. Single Cell RNA-Sequence Analyses Reveal Uniquely Expressed Genes and Heterogeneous Immune Cell Involvement in the Rat Model of Intervertebral Disc Degeneration. APPLIED SCIENCES (BASEL, SWITZERLAND) 2022; 12:8244. [PMID: 36451894 PMCID: PMC9706593 DOI: 10.3390/app12168244] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Intervertebral disc (IVD) degeneration is characterized by a loss of cellularity, and changes in cell-mediated activity that drives anatomic changes to IVD structure. In this study, we used single-cell RNA-sequencing analysis of degenerating tissues of the rat IVD following lumbar disc puncture. Two control, uninjured IVDs (L2-3, L3-4) and two degenerated, injured IVDs (L4-5, L5-6) from each animal were examined either at the two- or eight-week post-operative time points. The cells from these IVDs were extracted and transcriptionally profiled at the single-cell resolution. Unsupervised cluster analysis revealed the presence of four known cell types in both non-degenerative and degenerated IVDs based on previously established gene markers: IVD cells, endothelial cells, myeloid cells, and lymphoid cells. As a majority of cells were associated with the IVD cell cluster, sub-clustering was used to further identify the cell populations of the nucleus pulposus, inner and outer annulus fibrosus. The most notable difference between control and degenerated IVDs was the increase of myeloid and lymphoid cells in degenerated samples at two- and eight-weeks post-surgery. Differential gene expression analysis revealed multiple distinct cell types from the myeloid and lymphoid lineages, most notably macrophages and B lymphocytes, and demonstrated a high degree of immune specificity during degeneration. In addition to the heterogenous infiltrating immune cell populations in the degenerating IVD, the increased number of cells in the AF sub-cluster expressing Ngf and Ngfr, encoding for p75NTR, suggest that NGF signaling may be one of the key mediators of the IVD crosstalk between immune and neuronal cell populations. These findings provide the basis for future work to understand the involvement of select subsets of non-resident cells in IVD degeneration.
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Affiliation(s)
- Milad Rohanifar
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Sade W. Clayton
- Department of Orthopedic Surgery, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Garrett W.D. Easson
- Department of Orthopedic Surgery, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Deepanjali S. Patil
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Frank Lee
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Liufang Jing
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Marcos N. Barcellona
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Julie E. Speer
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
| | - Jordan J. Stivers
- Department of Orthopedic Surgery, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Simon Y. Tang
- Department of Orthopedic Surgery, Washington University School of Medicine, St. Louis, MO 63110, USA
| | - Lori A. Setton
- Department of Biomedical Engineering, Washington University in St. Louis, St. Louis, MO 63130, USA
- Department of Orthopedic Surgery, Washington University School of Medicine, St. Louis, MO 63110, USA
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Huang Y, Zhu L, Zhang W, Tang Q, Zhong Y. IL-10 alleviates radicular pain by inhibiting TNF-α/p65 dependent Nav1.7 up-regulation in DRG neurons of rats. Brain Res 2022; 1791:147997. [PMID: 35779581 DOI: 10.1016/j.brainres.2022.147997] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2022] [Revised: 06/21/2022] [Accepted: 06/26/2022] [Indexed: 01/06/2023]
Abstract
BACKGROUND Lumbar disc herniation (LDH) may induce radicular pain, the upregulation of voltage-gated sodium channels (VGSCs) in dorsal root ganglion (DRG) contributes to radicular pain by generating ectopic discharge of neurons, but the mechanism is unclear. Previously, we reported pro-inflammatory cytokine tumor necrosis factor-α (TNF-α) up-regulated VGSCs in diabetic neuropathy. In this study, we explored the effect of anti-inflammatory cytokine interleukin-10 (IL-10) on radicular pain and the possible mechanisms. METHODS Rat model of LDH was induced by implanting autologous nucleus pulposus (NP). Mechanical and thermal pain thresholds were assessed by von Frey filaments and hotplate test respectively. IL-10 and TNF-α level in DRG and cerebrospinal fluid (CSF) were assessed by Enzyme-linked immunosorbent assay (ELISA). IL-10 was intrathecally delivered for 12 days. The expression of IL-10R1 and sodium channel Nav1.7 was displayed by immunofluorescence staining. The protein level of TNF-α and p-p65 was measured by western blotting. RESULTS NP implantation increased Nav1.7 expression in DRG neurons, decreased IL-10 level and increased TNF-α level in DRG and CSF. IL-10 significantly alleviated pain behaviors of rats with NP. IL-10R1 was co-localized with neurons but not with satellite cells in DRG. IL-10 decreased Nav1.7 and TNF-α/p-p65 expression in DRG of rats with NP. Co-administration of TNF-α with IL-10 counteracted the effect of IL-10 on pain behaviors, Nav1.7 and TNF-α/p-p65 expression of rats with NP. CONCLUSIONS The study revealed that IL-10 alleviated radicular pain by inhibiting TNF-α/p-p65 dependent Nav1.7 up-regulation in DRG neurons.
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Affiliation(s)
- Yangliang Huang
- Department of Spine Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
| | - Lirong Zhu
- Key Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China; Institute of Neuroscience and Department of Neurology of the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China
| | - Weili Zhang
- Key Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China; Institute of Neuroscience and Department of Neurology of the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China
| | - Qian Tang
- Key Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China; Institute of Neuroscience and Department of Neurology of the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China
| | - Yi Zhong
- Key Laboratory of Neuroscience, School of Basic Medical Sciences, Guangzhou Medical University, Guangzhou 511436, China; Institute of Neuroscience and Department of Neurology of the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou 510260, China.
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The Effect of Melatonin on Radicular Pain in a Rat Model of Lumbar Disc Herniation. Spine (Phila Pa 1976) 2022; 47:754-763. [PMID: 35102121 DOI: 10.1097/brs.0000000000004329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
STUDY DESIGN Controlled, randomized, animal study. OBJECTIVE To investigate the effect of melatonin and its receptors on radicular pain and the possible mechanisms. SUMMARY OF BACKGROUND DATA Lumbar disc herniation (LDH) may induce radicular pain, but the mechanism is not clear and therapeutic effect is still poor. Previously we report central sensitization meaning potentiation of spinal nociceptive synaptic transmission is the critical cause of radicular pain. Melatonin (Mel) has been reported to promote hippocampal synaptic transmission and thus improve learning ability. But the effect of Mel on spinal synaptic transmission and radicular pain are not clear. METHODS Rat LDH model was induced by autologous nucleus pulposus (NP) implantation. Melatonin was delivered intraperitoneally four times a day, from day 1 to day 3 after surgery. Melatonin receptor agonist and antagonists were delivered intrathecally for 3 days as well. Mechanical and thermal pain thresholds were assessed by von Frey filaments and hotplate test respectively. Electrophysiological recording was employed for survey C-fiber evoked field potentials. The protein level of N- methyl-D-aspartate submit 2A (NR2A), NR2B, melatonin receptor 1 (MT1), and receptor 2 (MT2) was evaluated by western blotting. Spinal expression of calcitonin gene related peptides (CGRP), isolectin b4 (IB4), and neurofilament-200 (NF200) was displayed by immunofluorescence staining. RESULTS Melatonin significantly increased mechanical and thermal pain thresholds, lasting at least to day 5 after surgery. Melatonin decreased C-fiber evoked field potentials; decreased spinal NR2B protein level; reduced spinal CGRP, and IB4 expression. MT2 was upregulated after NP implantation and was co-localized with neuron and microglia. MT2 receptor agonist simulated the effect of Mel, and both MT receptor broadspectrum antagonist and MT2 specific antagonist abolished the effect of MT2 receptor agonist. CONCLUSION Melatonin alleviates radicular pain from LDH by inhibiting central sensitization via binding with its receptor 2, decreasing spinal CGRP, IB4, and NR2B expression.
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Braden K, Stratton HJ, Salvemini D, Khanna R. Small molecule targeting NaV1.7 via inhibition of the CRMP2-Ubc9 interaction reduces and prevents pain chronification in a mouse model of oxaliplatin-induced neuropathic pain. NEUROBIOLOGY OF PAIN (CAMBRIDGE, MASS.) 2022; 11:100082. [PMID: 35024498 PMCID: PMC8733339 DOI: 10.1016/j.ynpai.2021.100082] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 12/21/2021] [Accepted: 12/21/2021] [Indexed: 12/24/2022]
Abstract
Treatment with anti-neoplastic agents can lead to the development of chemotherapy induced peripheral neuropathy (CIPN), which is long lasting and often refractory to treatment. This neuropathic pain develops along dermatomes innervated by peripheral nerves with cell bodies located in the dorsal root ganglia (DRG). The voltage-gated sodium channel NaV1.7 is expressed at high levels in peripheral nerve tissues and has been implicated in the development of CIPN. Efforts to develop novel analgesics directly inhibiting NaV1.7 have been unsuccessful, and our group has pioneered an alternative approach based on indirect modulation of channel trafficking by the accessory protein collapsin response mediator protein 2 (CRMP2). We have recently reported a small molecule, compound 194, that inhibits CRMP2 SUMOylation by the E2 SUMO-conjugating enzyme Ubc9 (Cai et al. , Sci. Transl. Med. 2021 13(6 1 9):eabh1314). Compound 194 is a potent and selective inhibitor of NaV1.7 currents in DRG neurons and reverses mechanical allodynia in models of surgical, inflammatory, and neuropathic pain, including spared nerve injury and paclitaxelinduced peripheral neuropathy. Here we report that, in addition to its reported effects in rats, 194 also reduces mechanical allodynia in male CD-1 mice treated with platinumcomplex agent oxaliplatin. Importantly, treatment with 194 prevented the development of mechanical allodynia when co-administered with oxaliplatin. No effects were observed on the body weight of animals treated with oxaliplatin or 194 throughout the study period. These findings support the notion that 194 is a robust inhibitor of CIPN that reduces established neuropathic pain and prevents the emergence of neuropathic pain during treatment with multiple anti-neoplastic agents in both mice and rats.
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Key Words
- CIPN, chemotherapy induced peripheral neuropathy
- CRISPR, clustered regularly interspaced short palindromic repeats
- CRMP2
- CRMP2, collapsin response mediator protein 2
- Chemotherapy
- DRG, dorsal root ganglia
- NaV1.7
- NaV1.7, voltage-gated sodium channel family 1 isoform 7
- Neuropathy
- Oxaliplatin
- PWT, paw withdrawal threshold
- SNI, spared nerve injury
- SUMO, smallubiquitin like modifier
- SUMOylation
- TTX, tetrodotoxin
- TTX-R, tetrodotoxin-resistant
- TTX-S, tetrodotoxin-sensitive
- Ubc9, E2 SUMO-conjugating enzyme
- t-CSM, tat-CRMP2 SUMOylation motif
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Affiliation(s)
- Kathryn Braden
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, MO 63104, USA
- Henry and Amelia Nasrallah Center for Neuroscience, Saint Louis University School of Medicine, St. Louis, MO 63104, USA
| | - Harrison J. Stratton
- Department of Pharmacology, College of Medicine, the University of Arizona, Tucson, AZ 85724, USA
| | - Daniela Salvemini
- Department of Pharmacology and Physiology, Saint Louis University School of Medicine, St. Louis, MO 63104, USA
- Henry and Amelia Nasrallah Center for Neuroscience, Saint Louis University School of Medicine, St. Louis, MO 63104, USA
| | - Rajesh Khanna
- Department of Pharmacology, College of Medicine, the University of Arizona, Tucson, AZ 85724, USA
- Comprehensive Pain and Addiction Center, The University of Arizona, Tucson, AZ 85724, USA
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Zhang S, Hu B, Liu W, Wang P, Lv X, Chen S, Shao Z. The role of structure and function changes of sensory nervous system in intervertebral disc-related low back pain. Osteoarthritis Cartilage 2021; 29:17-27. [PMID: 33007412 DOI: 10.1016/j.joca.2020.09.002] [Citation(s) in RCA: 49] [Impact Index Per Article: 16.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2020] [Revised: 08/18/2020] [Accepted: 09/21/2020] [Indexed: 02/06/2023]
Abstract
Low back pain (LBP) is a common musculoskeletal symptom, which can be developed in multiple clinical diseases. It is widely recognized that intervertebral disc (IVD) degeneration (IVDD) is one of the leading causes of LBP. However, the pathogenesis of IVD-related LBP is still controversial, and the treatment means are also insufficient to date. In recent decades, the role of structure and function changes of sensory nervous system in the induction and the maintenance of LBP is drawing more and more attention. With the progress of IVDD, IVD cell exhaustion and extracellular matrix degradation result in IVD structural damage, while neovascularization, innervation and inflammatory activation further deteriorate the microenvironment of IVD. New nerve ingrowth into degenerated IVD amplifies the impacts of IVD-derived nociceptive molecules on sensory endings. Moreover, IVDD is usually accompanied with disc herniation, which could injure and inflame affected nerves. Under mechanical and pro-inflammatory stimulation, the pain-transmitting pathway exhibits a sensitized function state and ultimately leads to LBP. Hence, relevant pathogenic factors, such as neurotrophins, ion channels, inflammatory factors, etc., are supposed to serve as promising therapeutic targets for LBP. The purpose of this review is to comprehensively summarize the current evidence on 1) the pathological changes of sensory nervous system during IVDD and their association with LBP, and 2) potential therapeutic strategies for LBP targeting relevant pathogenic factors.
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Affiliation(s)
- S Zhang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - B Hu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - W Liu
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - P Wang
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - X Lv
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
| | - S Chen
- Department of Orthopaedics, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China.
| | - Z Shao
- Department of Orthopaedics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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9
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Expression of NaV-1.7, TNF-α and HSP-70 in experimental flare-up post-extirpated dental pulp tissue through a neuroimmunological approach. Saudi Dent J 2020; 32:206-212. [PMID: 32405224 PMCID: PMC7211902 DOI: 10.1016/j.sdentj.2019.09.001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Revised: 09/10/2019] [Accepted: 09/10/2019] [Indexed: 12/12/2022] Open
Abstract
Background Dental caries continue to represent a major problem which, if left untreated, will cause irreversible pulpitis. Root canal treatment constitutes one potential treatment intended to preserve teeth afflicted with irreversible pulpitis. During root canal treatment, pain or swelling, referred to as flare-ups, can occur at any point in the process. Aim To analyze the molecular aspect of the phenomenon of flare-up in vital dental pulp tissue following mechanical and bacterial trauma (extirpation and lipopolysaccharide [LPS] induction respectively) through a neurological approach, based on the expression of NaV-1.7 in neuron cells, and HSP-70, TNF-α in macrophage cells. Method This laboratory experimental study was conducted using 15 Spraque Dawley rats as subjects which were divided into three groups of five subjects: a control group, a pulp tissue extirpation group and an LPS induction followed by extirpation of pulp tissue group. Test samples were collected from the apical field of the mandibular incisor and subsequently examined using immunohistochemical methods. Results There were significant differences in NaV1.7, HSP70 and TNFα expression between the treatment groups. While a marked increase in the expression of HSP70 occurred, both Nav1.7, and TNFα expression decreased significantly. Conclusion Extirpating the dental pulp tissue will induce a more pronounced flare-up response from the molecules of the pulp tissue in vital teeth than those in inflamed vital pulp tissue.
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10
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Behavioral Compensations and Neuronal Remodeling in a Rodent Model of Chronic Intervertebral Disc Degeneration. Sci Rep 2019; 9:3759. [PMID: 30842475 PMCID: PMC6403208 DOI: 10.1038/s41598-019-39657-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2018] [Accepted: 01/29/2019] [Indexed: 12/25/2022] Open
Abstract
Low back pain is associated with degeneration of the intervertebral disc, but specific mechanisms of pain generation in this pathology remain unknown. Sensory afferent nerve fiber growth into the intervertebral disc after injury-induced inflammation may contribute to discogenic pain. We describe a clinically relevant behavioral phenotype in a rodent model of chronic intervertebral disc degeneration which provides a means to map sensory neuron changes to a single affected lumbar intervertebral disc. Unilateral disc puncture of one lumbar intervertebral disc revealed a bilateral behavioral phenotype characterized by gait changes and decreased activity. Moreover, neurons extracted from the dorsal root ganglia in animals with intervertebral disc injury demonstrated altered TRPV1 activation in vitro independent of exogenous NGF administration. Finally, neuronal nuclear hypertrophy and elevated expression of p75NTR provide evidence of active adaptation of innervating sensory neurons in chronic intervertebral disc degeneration. Therefore, this model and findings provide the template for future studies to establish specific mechanisms of nociceptive pain in chronic intervertebral disc degeneration.
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11
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Huang Y, Li Y, Zhong X, Hu Y, Liu P, Zhao Y, Deng Z, Liu X, Liu S, Zhong Y. Src-family kinases activation in spinal microglia contributes to central sensitization and chronic pain after lumbar disc herniation. Mol Pain 2017; 13:1744806917733637. [PMID: 28952414 PMCID: PMC5624351 DOI: 10.1177/1744806917733637] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2017] [Revised: 08/06/2017] [Accepted: 08/10/2017] [Indexed: 11/22/2022] Open
Abstract
Background Lumbar disc herniation is a major cause of radicular pain, but the underlying mechanisms remain largely unknown. Spinal activation of src-family kinases are involved in the development of chronic pain from nerve injury, inflammation, and cancer. In the present study, the role of src-family kinases activation in lumbar disc herniation-induced radicular pain was investigated. Results Lumbar disc herniation was induced by implantation of autologous nucleus pulposus, harvest from tail, in lumbar 4/5 spinal nerve roots of rat. Behavior test and electrophysiologic data showed that nucleus pulposus implantation induced persistent mechanical allodynia and thermal hyperalgesia and increased efficiency of synaptic transmission in spinal dorsal horn which underlies central sensitization of pain sensation. Western blotting and immunohistochemistry staining revealed that the expression of phosphorylated src-family kinases was upregulated mainly in spinal microglia of rats with nucleus pulposus. Intrathecal delivery of src-family kinases inhibitor PP2 alleviated pain behaviors, decreased efficiency of spinal synaptic transmission, and reduced phosphorylated src-family kinases expression. Furthermore, we found that the expression of ionized calcium-binding adapter molecule 1 (marker of microglia), tumor necrosis factor-α, interleukin 1 -β in spinal dorsal horn was increased in rats with nucleus pulposus. Therapeutic effect of PP2 may be related to its capacity in reducing the expression of these factors. Conclusions These findings suggested that central sensitization was involved in radicular pain from lumbar disc herniation; src-family kinases-mediated inflammatory response may be responsible for central sensitization and chronic pain after lumbar disc herniation.
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Affiliation(s)
- Yangliang Huang
- Department of Spine Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yongyong Li
- Department of Physiology and Pain Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Xiongxiong Zhong
- Department of Physiology and Pain Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Yuming Hu
- Department of Physiology, School of Basic Medical Science, Guangzhou Medical University, Guangzhou, China
- Department of Neurology, Institute of Neuroscience, Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Guangzhou, China
| | - Pan Liu
- Department of Physiology, School of Basic Medical Science, Guangzhou Medical University, Guangzhou, China
- Department of Neurology, Institute of Neuroscience, Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Guangzhou, China
| | - Yuanshu Zhao
- Department of Physiology, School of Basic Medical Science, Guangzhou Medical University, Guangzhou, China
- Department of Neurology, Institute of Neuroscience, Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Guangzhou, China
| | - Zhen Deng
- Department of Physiology, School of Basic Medical Science, Guangzhou Medical University, Guangzhou, China
- Department of Neurology, Institute of Neuroscience, Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Guangzhou, China
| | - Xianguo Liu
- Department of Physiology and Pain Research Center, Zhongshan School of Medicine, Sun Yat-Sen University, Guangzhou, China
| | - Shaoyu Liu
- Department of Spine Surgery, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Yi Zhong
- Department of Physiology, School of Basic Medical Science, Guangzhou Medical University, Guangzhou, China
- Department of Neurology, Institute of Neuroscience, Second Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Neurogenetics and Channelopathies of Guangdong Province and the Ministry of Education of China, Guangzhou, China
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12
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Yan J, Zou K, Liu X, Hu S, Wang Q, Miao X, Zhu HY, Zhou Y, Xu GY. Hyperexcitability and sensitization of sodium channels of dorsal root ganglion neurons in a rat model of lumber disc herniation. EUROPEAN SPINE JOURNAL : OFFICIAL PUBLICATION OF THE EUROPEAN SPINE SOCIETY, THE EUROPEAN SPINAL DEFORMITY SOCIETY, AND THE EUROPEAN SECTION OF THE CERVICAL SPINE RESEARCH SOCIETY 2015; 25:177-185. [PMID: 26245907 DOI: 10.1007/s00586-015-4171-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 07/28/2015] [Accepted: 07/28/2015] [Indexed: 11/26/2022]
Abstract
PURPOSE Low back pain and sciatica are the most common symptoms of patients with lumbar disc herniation (LDH). The pathophysiology of lumbocrural pain and sciatica is not fully understood. The aim of the present study was to define the membrane properties and activities of voltage-gated sodium channels of dorsal root ganglion (DRG) neurons in a rat model of LDH. METHODS LDH was established by transplantation of autologous nucleus pulposus (NP) to lumbar 5 and 6 spinal nerves (L5-L6 DRG) of adult male rats. Mechanical paw withdrawal threshold (PWT) and thermal paw withdrawal latency (PWL) were measured 1 day before and through 35 days after transplantation of NP. Changes in expression of VGSCs were determined by western blotting. L5-L6 DRGs neurons innervating the hindpaw were labeled with DiI and acutely dissociated for measuring excitability and sodium channel currents under whole-cell patch clamp configurations. RESULTS NP transplantation significantly reduced the PWT and PWL in association with a significant reduction in rheobase and an increase in numbers of action potentials evoked by 2X and 3X rheobase current stimulation. Voltage-gated sodium current density was significantly enhanced in L5-L6 DRG neurons from LDH rats. The inactivation curve showed a leftward shift in LDH rats while activation curve did not significantly alter. However, NP transplantation remarkably enhanced expression of NaV1.7 and NaV1.8 in L5-L6 DRGs but not in T10-12 DRGs. CONCLUSION These data suggest that NP application produces pain-related behavior and potentiates sodium current density of DRG neurons, which is most likely mediated by enhanced expression of NaV1.7 and NaV1.8.
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Affiliation(s)
- Jun Yan
- Department of Orthopedics, The Second Affiliated Hospital, Soochow University, 215123, Suzhou, People's Republic of China
| | - Kang Zou
- Department of Orthopedics, The Second Affiliated Hospital, Soochow University, 215123, Suzhou, People's Republic of China
| | - Xiaofeng Liu
- Department of Orthopedics, The Second Affiliated Hospital, Soochow University, 215123, Suzhou, People's Republic of China
| | - Shufen Hu
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, Laboratory for Translational Pain Medicine, Institute of Neuroscience, Soochow University, 199 Ren-Ai Road, 215123, Suzhou, People's Republic of China
| | - Qianliang Wang
- Department of Orthopedics, The Second Affiliated Hospital, Soochow University, 215123, Suzhou, People's Republic of China
| | - Xiuhua Miao
- Center for Translational Medicine, The Affiliated Zhangjiagang Hospital, Soochow University, 215600, Zhangjiagang, People's Republic of China
| | - Hong-Yan Zhu
- Center for Translational Medicine, The Affiliated Zhangjiagang Hospital, Soochow University, 215600, Zhangjiagang, People's Republic of China
| | - Youlang Zhou
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, Laboratory for Translational Pain Medicine, Institute of Neuroscience, Soochow University, 199 Ren-Ai Road, 215123, Suzhou, People's Republic of China
| | - Guang-Yin Xu
- Jiangsu Key Laboratory of Translational Research and Therapy for Neuro-Psycho-Diseases, Laboratory for Translational Pain Medicine, Institute of Neuroscience, Soochow University, 199 Ren-Ai Road, 215123, Suzhou, People's Republic of China.
- Center for Translational Medicine, The Affiliated Zhangjiagang Hospital, Soochow University, 215600, Zhangjiagang, People's Republic of China.
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Green PG, Alvarez P, Levine JD. Topical Tetrodotoxin Attenuates Photophobia Induced by Corneal Injury in the Rat. THE JOURNAL OF PAIN 2015; 16:881-6. [PMID: 26086898 DOI: 10.1016/j.jpain.2015.06.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 05/27/2015] [Accepted: 06/04/2015] [Indexed: 11/24/2022]
Abstract
Corneal injury can produce photophobia, an aversive sensitivity to light. Using topical application of lidocaine, a local anesthetic, and tetrodotoxin (TTX), a selective voltage-sensitive sodium channel blocker, we assessed whether enhanced aversiveness to light induced by corneal injury in rats was caused by enhanced activity in corneal afferents. Eye closure induced by 30 seconds of exposure to bright light (460-485 nm) was increased 24 hours after corneal injury induced by de-epithelialization. Although the topical application of lidocaine did not affect the baseline eye closure response to bright light in control rats, it eliminated the enhancement of the response to the light stimulus after corneal injury (photophobia). Similarly, topical application of TTX had no effect on the eye closure response to bright light in rats with intact corneas, but it markedly attenuated photophobia in rats with corneal injury. Given the well-established corneal toxicity of local anesthetics, we suggest TTX as a therapeutic option to treat photophobia and possibly other symptoms that occur in clinical diseases that involve corneal nociceptor sensitization. Perspective: We show that lidocaine and TTX attenuate photophobia induced by corneal injury. Although corneal toxicity limits use of local anesthetics, TTX may be a safer therapeutic option to reduce the symptom of photophobia associated with corneal injury.
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Affiliation(s)
- Paul G Green
- Department of Oral & Maxillofacial Surgery, University of California at San Francisco, San Francisco, California; Department of Preventative & Restorative Dental Sciences, University of California at San Francisco, San Francisco, California; Division of Neuroscience, University of California at San Francisco, San Francisco, California
| | - Pedro Alvarez
- Department of Oral & Maxillofacial Surgery, University of California at San Francisco, San Francisco, California; Division of Neuroscience, University of California at San Francisco, San Francisco, California
| | - Jon D Levine
- Department of Oral & Maxillofacial Surgery, University of California at San Francisco, San Francisco, California; Division of Neuroscience, University of California at San Francisco, San Francisco, California; Department of Dental Science and Medicine, University of California at San Francisco, San Francisco, California.
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