1
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Dourson AJ, Fadaka AO, Warshak AM, Paranjpe A, Weinhaus B, Queme LF, Hofmann MC, Evans HM, Donmez OA, Forney C, Weirauch MT, Kottyan LC, Lucas D, Deepe GS, Jankowski MP. Macrophage memories of early-life injury drive neonatal nociceptive priming. Cell Rep 2024; 43:114129. [PMID: 38640063 PMCID: PMC11197107 DOI: 10.1016/j.celrep.2024.114129] [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: 02/14/2023] [Revised: 01/05/2024] [Accepted: 04/04/2024] [Indexed: 04/21/2024] Open
Abstract
The developing peripheral nervous and immune systems are functionally distinct from those of adults. These systems are vulnerable to early-life injury, which influences outcomes related to nociception following subsequent injury later in life (i.e., "neonatal nociceptive priming"). The underpinnings of this phenomenon are unclear, although previous work indicates that macrophages are trained by inflammation and injury. Our findings show that macrophages are both necessary and partially sufficient to drive neonatal nociceptive priming, possibly due to a long-lasting remodeling in chromatin structure. The p75 neurotrophic factor receptor is an important effector in regulating neonatal nociceptive priming through modulation of the inflammatory profile of rodent and human macrophages. This "pain memory" is long lasting in females and can be transferred to a naive host to alter sex-specific pain-related behaviors. This study reveals a mechanism by which acute, neonatal post-surgical pain drives a peripheral immune-related predisposition to persistent pain following a subsequent injury.
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Affiliation(s)
- Adam J Dourson
- Department of Anesthesia, Division of Pain Management, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Adewale O Fadaka
- Department of Anesthesia, Division of Pain Management, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Anna M Warshak
- Department of Anesthesia, Division of Pain Management, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Aditi Paranjpe
- Biomedical Informatics, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Benjamin Weinhaus
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Medical Center, Cincinnati, OH, USA
| | - Luis F Queme
- Department of Anesthesia, Division of Pain Management, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Megan C Hofmann
- Department of Anesthesia, Division of Pain Management, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Heather M Evans
- Division of Infectious Diseases, University of Cincinnati, Cincinnati, OH, USA
| | - Omer A Donmez
- Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Carmy Forney
- Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Matthew T Weirauch
- Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA; Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA; Divisions of Biomedical Informatics and Developmental Biology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA
| | - Leah C Kottyan
- Center for Autoimmune Genomics and Etiology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA; Division of Allergy and Immunology, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA; Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH 45229, USA
| | - Daniel Lucas
- Division of Experimental Hematology and Cancer Biology, Cincinnati Children's Medical Center, Cincinnati, OH, USA; Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH 45229, USA
| | - George S Deepe
- Division of Infectious Diseases, Department of Medicine, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Michael P Jankowski
- Department of Anesthesia, Division of Pain Management, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA; Department of Pediatrics, College of Medicine, University of Cincinnati, Cincinnati, OH 45229, USA; Pediatric Pain Research Center, Cincinnati Children's Hospital Medical Center, Cincinnati, OH, USA.
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Satapathy T, Singh G, Pandey RK, Shukla SS, Bhardwaj SK, Gidwani B. Novel Targets and Drug Delivery System in the Treatment of Postoperative Pain: Recent Studies and Clinical Advancement. Curr Drug Targets 2024; 25:25-45. [PMID: 38037995 DOI: 10.2174/0113894501271207231127063431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 10/18/2023] [Accepted: 11/07/2023] [Indexed: 12/02/2023]
Abstract
Pain is generated by a small number of peripheral targets. These can be made more sensitive by inflammatory mediators. The number of opioids prescribed to the patients can be reduced dramatically with better pain management. Any therapy that safely and reliably provides extended analgesia and is flexible enough to facilitate a diverse array of release profiles would be useful for improving patient comfort, quality of care, and compliance after surgical procedures. Comparisons are made between new and traditional methods, and the current state of development has been discussed; taking into account the availability of molecular and cellular level data, preclinical and clinical data, and early post-market data. There are a number of benefits associated with the use of nanotechnology in the delivery of analgesics to specific areas of the body. Nanoparticles are able to transport drugs to inaccessible bodily areas because of their small molecular size. This review focuses on targets that act specifically or primarily on sensory neurons, as well as inflammatory mediators that have been shown to have an analgesic effect as a side effect of their anti- inflammatory properties. New, regulated post-operative pain management devices that use existing polymeric systems were presented in this article, along with the areas for potential development. Analgesic treatments, both pharmacological and non-pharmacological, have also been discussed.
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Affiliation(s)
- Trilochan Satapathy
- Department of Pharmacology, Columbia Institute of Pharmacy, Raipur, Chhattisgarh-493111, India
| | - Gulab Singh
- Department of Pharmacology, Columbia Institute of Pharmacy, Raipur, Chhattisgarh-493111, India
| | - Ravindra Kumar Pandey
- Department of Pharmacology, Columbia Institute of Pharmacy, Raipur, Chhattisgarh-493111, India
| | - Shiv Shankar Shukla
- Department of Pharmacology, Columbia Institute of Pharmacy, Raipur, Chhattisgarh-493111, India
| | - Shiv Kumar Bhardwaj
- Department of Pharmacology, Columbia Institute of Pharmacy, Raipur, Chhattisgarh-493111, India
| | - Beena Gidwani
- Department of Pharmacology, Columbia Institute of Pharmacy, Raipur, Chhattisgarh-493111, India
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Cortez I, Gaffney CM, Crelli CV, Lee E, Nichols JM, Pham HV, Mehdi S, Janjic JM, Shepherd AJ. Sustained pain and macrophage infiltration in a mouse muscle contusion model. Muscle Nerve 2024; 69:103-114. [PMID: 37929655 DOI: 10.1002/mus.28001] [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: 02/10/2023] [Revised: 10/16/2023] [Accepted: 10/21/2023] [Indexed: 11/07/2023]
Abstract
INTRODUCTION/AIMS Prior studies have emphasized the role of inflammation in the response to injury and muscle regeneration, but little emphasis has been placed on characterizing the relationship between innate inflammation, pain, and functional impairment. The aim of our study was to determine the contribution of innate immunity to prolonged pain following muscle contusion. METHODS We developed a closed-impact mouse model of muscle contusion and a macrophage-targeted near-infrared fluorescent nanoemulsion. Closed-impact contusions were delivered to the lower left limb. Pain sensitivity, gait dysfunction, and inflammation were assessed in the days and weeks post-contusion. Macrophage accumulation was imaged in vivo by injecting i.v. near-infrared nanoemulsion. RESULTS Despite hindpaw hypersensitivity persisting for several weeks, disruptions to gait and grip strength typically resolved within 10 days of injury. Using non-invasive imaging and immunohistochemistry, we show that macrophage density peaks in and around the affected muscle 3 day post-injury and quickly subsides. However, macrophage density in the ipsilateral sciatic nerve and dorsal root ganglia (DRG) increases more gradually and persists for at least 14 days. DISCUSSION In this study, we demonstrate pain sensitivity is influenced by the degree of lower muscle contusion, without significant changes to gait and grip strength. This may be due to modulation of pain signaling by macrophage proliferation in the sciatic nerve, upstream from the site of injury. Our work suggests chronic pain developing from muscle contusion is driven by macrophage-derived neuroinflammation in the peripheral nervous system.
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Affiliation(s)
- Ibdanelo Cortez
- The MD Anderson Pain Research Consortium and the Laboratories of Neuroimmunology, Department of Symptom Research, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Caitlyn M Gaffney
- The MD Anderson Pain Research Consortium and the Laboratories of Neuroimmunology, Department of Symptom Research, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Caitlin V Crelli
- Graduate School of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, Pittsburgh, Pennsylvania, USA
| | - Eric Lee
- The MD Anderson Pain Research Consortium and the Laboratories of Neuroimmunology, Department of Symptom Research, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - James M Nichols
- The MD Anderson Pain Research Consortium and the Laboratories of Neuroimmunology, Department of Symptom Research, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Hoang Vu Pham
- The MD Anderson Pain Research Consortium and the Laboratories of Neuroimmunology, Department of Symptom Research, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Syed Mehdi
- The MD Anderson Pain Research Consortium and the Laboratories of Neuroimmunology, Department of Symptom Research, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
| | - Jelena M Janjic
- Graduate School of Pharmaceutical Sciences, School of Pharmacy, Duquesne University, Pittsburgh, Pennsylvania, USA
| | - Andrew J Shepherd
- The MD Anderson Pain Research Consortium and the Laboratories of Neuroimmunology, Department of Symptom Research, Division of Internal Medicine, The University of Texas MD Anderson Cancer Center, Houston, Texas, USA
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Dourson AJ, Fadaka AO, Warshak AM, Paranjpe A, Weinhaus B, Queme LF, Hofmann MC, Evans HM, Donmez OA, Forney C, Weirauch MT, Kottyan LT, Lucas D, Deepe GS, Jankowski MP. Macrophage epigenetic memories of early life injury drive neonatal nociceptive priming. BIORXIV : THE PREPRINT SERVER FOR BIOLOGY 2023:2023.02.13.528015. [PMID: 36824978 PMCID: PMC9948986 DOI: 10.1101/2023.02.13.528015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Abstract
The developing peripheral nervous and immune systems are functionally distinct from adults. These systems are vulnerable to early life injury, which influences outcomes related to nociception following subsequent injury later in life (neonatal nociceptive priming). The underpinnings of this phenomenon are largely unknown, although previous work indicates that macrophages are epigenetically trained by inflammation and injury. We found that macrophages are both necessary and partially sufficient to drive neonatal nociceptive priming possibly due to a long-lasting epigenetic remodeling. The p75 neurotrophic factor receptor (NTR) was an important effector in regulating neonatal nociceptive priming through modulation of the inflammatory profile of rodent and human macrophages. This pain memory was long lasting in females and could be transferred to a naive host to alter sex-specific pain-related behaviors. This study reveals a novel mechanism by which acute, neonatal post-surgical pain drives a peripheral immune-related predisposition to persistent pain following a subsequent injury.
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Xu J, Huang P, Bie B, Dai Y, Ben-Salem S, Borjini N, Zhang L, Chen J, Olman M, Cheng J, Lin F. Complement Receptor C3aR1 Contributes to Paclitaxel-Induced Peripheral Neuropathic Pain in Mice and Rats. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2023; 211:1736-1746. [PMID: 37861348 PMCID: PMC10841827 DOI: 10.4049/jimmunol.2300252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 09/22/2023] [Indexed: 10/21/2023]
Abstract
Cancer chemotherapy-induced neuropathic pain is a devastating pain syndrome without effective therapies. We previously reported that rats deficient in complement C3, the central component of complement activation cascade, showed a reduced degree of paclitaxel-induced mechanical allodynia (PIMA), suggesting that complement is integrally involved in the pathogenesis of this model. However, the underlying mechanism was unclear. Complement activation leads to the production of C3a, which mediates inflammation through its receptor C3aR1. In this article, we report that the administration of paclitaxel induced a significantly higher expression level of C3aR1 on dorsal root ganglion (DRG) macrophages and expansion of these macrophages in DRGs in wild-type (WT) compared with in C3aR1 knockout (KO) mice. We also found that paclitaxel induced less severe PIMA, along with a reduced DRG expression of transient receptor potential channels of the vanilloid subtype 4 (TRPV4), an essential mediator for PIMA, in C3aR1 KO than in WT mice. Treating WT mice or rats with a C3aR1 antagonist markedly attenuated PIMA in association with downregulated DRG TRPV4 expression, reduced DRG macrophages expansion, suppressed DRG neuron hyperexcitability, and alleviated peripheral intraepidermal nerve fiber loss. Administration of C3aR1 antagonist to TRPV4 KO mice further protected them from PIMA. These results suggest that complement regulates PIMA development through C3aR1 to upregulate TRPV4 on DRG neurons and promote DRG macrophage expansion. Targeting C3aR1 could be a novel therapeutic approach to alleviate this debilitating pain syndrome.
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Affiliation(s)
- Jijun Xu
- Department of Pain Management, Cleveland Clinic, 9500 Euclid Ave., Cleveland, OH 44195, USA
- Department of Inflammation and Immunity, 9500 Euclid Ave., Cleveland Clinic, Cleveland, OH 44195, USA
| | - Ping Huang
- Department of Inflammation and Immunity, 9500 Euclid Ave., Cleveland Clinic, Cleveland, OH 44195, USA
| | - Bihua Bie
- Department of Pain Management, Cleveland Clinic, 9500 Euclid Ave., Cleveland, OH 44195, USA
| | - Yang Dai
- Department of Inflammation and Immunity, 9500 Euclid Ave., Cleveland Clinic, Cleveland, OH 44195, USA
| | - Salma Ben-Salem
- Department of Inflammation and Immunity, 9500 Euclid Ave., Cleveland Clinic, Cleveland, OH 44195, USA
| | - Nozha Borjini
- Department of Inflammation and Immunity, 9500 Euclid Ave., Cleveland Clinic, Cleveland, OH 44195, USA
| | - Lingjun Zhang
- Department of Inflammation and Immunity, 9500 Euclid Ave., Cleveland Clinic, Cleveland, OH 44195, USA
| | - Jin Chen
- Department of Inflammation and Immunity, 9500 Euclid Ave., Cleveland Clinic, Cleveland, OH 44195, USA
| | - Mitchell Olman
- Department of Inflammation and Immunity, 9500 Euclid Ave., Cleveland Clinic, Cleveland, OH 44195, USA
| | - Jianguo Cheng
- Department of Pain Management, Cleveland Clinic, 9500 Euclid Ave., Cleveland, OH 44195, USA
- Department of Neurosciences, 9500 Euclid Ave., Cleveland Clinic, Cleveland, OH 44195, USA
| | - Feng Lin
- Department of Inflammation and Immunity, 9500 Euclid Ave., Cleveland Clinic, Cleveland, OH 44195, USA
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Xu P, Shao RR, He Y. Bibliometric analysis of recent research on the association between TRPV1 and inflammation. Channels (Austin) 2023; 17:2189038. [PMID: 36919561 PMCID: PMC10026872 DOI: 10.1080/19336950.2023.2189038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/16/2023] Open
Abstract
TRPV1 channel is a sensitive ion channel activated by some noxious stimuli and has been reported to change many physiological functions after its activation. In this paper, we present a scientometric approach to explore the trends of the association between TRPV1 channel and inflammation and our goal is to provide creative directions for future research. The related literature was retrieved from Web of Science Core Collection and then analyzed by CiteSpace and VOSviewer. A total of 1533 documents were screened. The most productive country, institution, journal, author, cited journal, cited author, and references were the United States, University of California, San Francisco, Pain, Lu-yuan Lee, Nature, Michael J. Caterina, and Caterina MJ (Science, 2000), respectively. The most influential country and institution were Switzerland and University of California, San Francisco, respectively. The cooperation among countries or institutions was extensive. Amounts of documents were distributed in molecular, biology, genetics. TRPV1-associated neurons, neuropeptides, neuropathic pain, neuroinflammation, and neurogenic inflammation were mainly hotspots in this field. The research has presented valuable data about previous studies in the link of TRPV1 channel and inflammation.
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Affiliation(s)
- Pan Xu
- Department of Oral Medicine, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
| | - Ru-Ru Shao
- Department of Oral Medicine, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
| | - Yuan He
- Department of Oral Medicine, Stomatological Hospital and Dental School of Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
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Chen O, Luo X, Ji RR. Macrophages and microglia in inflammation and neuroinflammation underlying different pain states. MEDICAL REVIEW (2021) 2023; 3:381-407. [PMID: 38283253 PMCID: PMC10811354 DOI: 10.1515/mr-2023-0034] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Accepted: 09/26/2023] [Indexed: 01/30/2024]
Abstract
Pain is a main symptom in inflammation, and inflammation induces pain via inflammatory mediators acting on nociceptive neurons. Macrophages and microglia are distinct cell types, representing immune cells and glial cells, respectively, but they share similar roles in pain regulation. Macrophages are key regulators of inflammation and pain. Macrophage polarization plays different roles in inducing and resolving pain. Notably, macrophage polarization and phagocytosis can be induced by specialized pro-resolution mediators (SPMs). SPMs also potently inhibit inflammatory and neuropathic pain via immunomodulation and neuromodulation. In this review, we discuss macrophage signaling involved in pain induction and resolution, as well as in maintaining physiological pain. Microglia are macrophage-like cells in the central nervous system (CNS) and drive neuroinflammation and pathological pain in various inflammatory and neurological disorders. Microglia-produced inflammatory cytokines can potently regulate excitatory and inhibitory synaptic transmission as neuromodulators. We also highlight sex differences in macrophage and microglial signaling in inflammatory and neuropathic pain. Thus, targeting macrophage and microglial signaling in distinct locations via pharmacological approaches, including immunotherapies, and non-pharmacological approaches will help to control chronic inflammation and chronic pain.
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Affiliation(s)
- Ouyang Chen
- Department of Anesthesiology, Center for Translational Pain Medicine, Duke University Medical Center, Durham, NC, USA
- Department of Cell Biology, Duke University Medical Center, Durham, NC, USA
| | - Xin Luo
- Department of Anesthesiology, Center for Translational Pain Medicine, Duke University Medical Center, Durham, NC, USA
- Guangdong-Hong Kong-Macao Greater Bay Area Center for Brain Science and Brain-Inspired Intelligence, Southern Medical University, Guangzhou, Guangdong Province, China
| | - Ru-Rong Ji
- Department of Anesthesiology, Center for Translational Pain Medicine, Duke University Medical Center, Durham, NC, USA
- Department of Cell Biology, Duke University Medical Center, Durham, NC, USA
- Department of Neurobiology, Duke University Medical Center, Durham, NC, USA
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Kraev K, Geneva-Popova M, Hristov B, Uchikov P, Popova S, Kraeva M, Basheva-Kraeva Y, Sheytanov I, Petranova T, Stoyanova N, Atanassov M. Exploring the Novel Dimension of Immune Interactions in Pain: JAK Inhibitors' Pleiotropic Potential. Life (Basel) 2023; 13:1994. [PMID: 37895376 PMCID: PMC10608014 DOI: 10.3390/life13101994] [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: 08/29/2023] [Revised: 09/27/2023] [Accepted: 09/28/2023] [Indexed: 10/29/2023] Open
Abstract
This review explores the link between immune interactions and chronic pain, offering new perspectives on treatment. It focuses on Janus kinase (JAK) inhibitors' potential in pain management. Immune cells' communication with neurons shapes neuroinflammatory responses, and JAK inhibitors' effects on pain pathways are discussed, including cytokine suppression and microglial modulation. This review integrates studies from rheumatoid arthritis (RA) pain and central sensitization to highlight connections between immune interactions and pain. Studies on RA joint pain reveal the shift from cytokines to sensitization. Neurobiological investigations into central sensitization uncover shared pathways in chronic pain. Clinical evidence supports JAK inhibitors' efficacy on pain-related outcomes and their effects on neurons and immune cells. Challenges and future directions are outlined, including interdisciplinary collaboration and dosing optimization. Overall, this review highlights JAK inhibitors' potential to target immune-mediated pain pathways, underscoring the need for more research on immune-pain connections.
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Affiliation(s)
- Krasimir Kraev
- Department of Propaedeutics of Internal Diseases “Prof. Dr. Anton Mitov”, Faculty of Medicine, Medical University of Plovdiv, 4002 Plovdiv, Bulgaria
- Clinic of Rheumatology, University Hospital “St. George”, 4000 Plovdiv, Bulgaria
| | - Mariela Geneva-Popova
- Department of Propaedeutics of Internal Diseases “Prof. Dr. Anton Mitov”, Faculty of Medicine, Medical University of Plovdiv, 4002 Plovdiv, Bulgaria
- Clinic of Rheumatology, University Hospital “St. George”, 4000 Plovdiv, Bulgaria
| | - Bozhidar Hristov
- Second Department of Internal Diseases, Section “Gastroenterology”, Medical Faculty, Medical University of Plovdiv, 4002 Plovdiv, Bulgaria
- Clinic of Gastroenterology, University Hospital “Kaspela”, 4001 Plovdiv, Bulgaria
| | - Petar Uchikov
- Department of Special Surgery, Faculty of Medicine, Medical University of Plovdiv, 4002 Plovdiv, Bulgaria
- Second Surgery Clinic, University Hospital “St. George”, 4000 Plovdiv, Bulgaria
| | - Stanislava Popova
- Department of Propaedeutics of Internal Diseases “Prof. Dr. Anton Mitov”, Faculty of Medicine, Medical University of Plovdiv, 4002 Plovdiv, Bulgaria
- Clinic of Rheumatology, University Hospital “St. George”, 4000 Plovdiv, Bulgaria
| | - Maria Kraeva
- Department of Otorhinolaryngology, Medical Faculty, Medical University of Plovdiv, 4002 Plovdiv, Bulgaria
| | - Yordanka Basheva-Kraeva
- Department of Ophthalmology, Faculty of Medicine, Medical University of Plovdiv, University Eye Clinic, University Hospital, 4000 Plovdiv, Bulgaria (M.A.)
| | - Ivan Sheytanov
- Department of Rheumatology, Clinic of Rheumatology, University Hospital St. Ivan Rilski, Medical Faculty, Medical University of Sofia, 1000 Sofia, Bulgaria
| | - Tzvetanka Petranova
- Department of Rheumatology, Clinic of Rheumatology, University Hospital St. Ivan Rilski, Medical Faculty, Medical University of Sofia, 1000 Sofia, Bulgaria
| | - Nina Stoyanova
- Department of Ophthalmology, Faculty of Medicine, Medical University of Plovdiv, University Eye Clinic, University Hospital, 4000 Plovdiv, Bulgaria (M.A.)
| | - Marin Atanassov
- Department of Ophthalmology, Faculty of Medicine, Medical University of Plovdiv, University Eye Clinic, University Hospital, 4000 Plovdiv, Bulgaria (M.A.)
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9
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Patel B, Eskander MA, Fang-Mei Chang P, Chapa B, Ruparel SB, Lai Z, Chen Y, Akopian A, Ruparel NB. Understanding painful versus non-painful dental pain in female and male patients: A transcriptomic analysis of human biopsies. PLoS One 2023; 18:e0291724. [PMID: 37733728 PMCID: PMC10513205 DOI: 10.1371/journal.pone.0291724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 09/05/2023] [Indexed: 09/23/2023] Open
Abstract
Dental pain from apical periodontitis is an infection induced-orofacial pain condition that presents with diversity in pain phenotypes among patients. While 60% of patients with a full-blown disease present with the hallmark symptom of mechanical allodynia, nearly 40% of patients experience no pain. Furthermore, a sexual dichotomy exists, with females exhibiting lower mechanical thresholds under basal and diseased states. Finally, the prevalence of post-treatment pain refractory to commonly used analgesics ranges from 7-19% (∼2 million patients), which warrants a thorough investigation of the cellular changes occurring in different patient cohorts. We, therefore, conducted a transcriptomic assessment of periapical biopsies (peripheral diseased tissue) from patients with persistent apical periodontitis. Surgical biopsies from symptomatic male (SM), asymptomatic male (AM), symptomatic female (SF), and asymptomatic female (AF) patients were collected and processed for bulk RNA sequencing. Using strict selection criteria, our study found several unique differentially regulated genes (DEGs) between symptomatic and asymptomatic patients, as well as novel candidate genes between sexes within the same pain group. Specifically, we found the role of cells of the innate and adaptive immune system in mediating nociception in symptomatic patients and the role of genes involved in tissue homeostasis in potentially inhibiting nociception in asymptomatic patients. Furthermore, sex-related differences appear to be tightly regulated by macrophage activity, its secretome, and/or migration. Collectively, we present, for the first time, a comprehensive assessment of peripherally diseased human tissue after a microbial insult and shed important insights into the regulation of the trigeminal system in female and male patients.
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Affiliation(s)
- Biraj Patel
- Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
| | - Michael A. Eskander
- Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
| | - Phoebe Fang-Mei Chang
- Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
| | - Brett Chapa
- Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
| | - Shivani B. Ruparel
- Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
| | - Zhao Lai
- Greehey Children’s Cancer Research Institute, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
- Department of Molecular Medicine, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
| | - Yidong Chen
- Greehey Children’s Cancer Research Institute, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
- Department of Population Health Sciences, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
| | - Armen Akopian
- Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
| | - Nikita B. Ruparel
- Department of Endodontics, University of Texas Health Science Center at San Antonio, San Antonio, Texas, United States of America
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10
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Salathia S, Gigliobianco MR, Casadidio C, Di Martino P, Censi R. Hyaluronic Acid-Based Nanosystems for CD44 Mediated Anti-Inflammatory and Antinociceptive Activity. Int J Mol Sci 2023; 24:ijms24087286. [PMID: 37108462 PMCID: PMC10138575 DOI: 10.3390/ijms24087286] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2023] [Revised: 03/22/2023] [Accepted: 04/04/2023] [Indexed: 04/29/2023] Open
Abstract
The nervous and immune systems go hand in hand in causing inflammation and pain. However, the two are not mutually exclusive. While some diseases cause inflammation, others are caused by it. Macrophages play an important role in modulating inflammation to trigger neuropathic pain. Hyaluronic acid (HA) is a naturally occurring glycosaminoglycan that has a well-known ability to bind with the cluster of differentiation 44 (CD44) receptor on classically activated M1 macrophages. Resolving inflammation by varying the molecular weight of HA is a debated concept. HA-based drug delivery nanosystems such as nanohydrogels and nanoemulsions, targeting macrophages can be used to relieve pain and inflammation by loading antinociceptive drugs and enhancing the effect of anti-inflammatory drugs. This review will discuss the ongoing research on HA-based drug delivery nanosystems regarding their antinociceptive and anti-inflammatory effects.
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Affiliation(s)
- Saniya Salathia
- School of Pharmacy, Università di Camerino, 62032 Camerino, Italy
| | | | | | - Piera Di Martino
- School of Pharmacy, Università di Camerino, 62032 Camerino, Italy
- Department of Pharmacy, Università "G. d'Annunzio" di Chieti e Pescara, 66100 Chieti, Italy
| | - Roberta Censi
- School of Pharmacy, Università di Camerino, 62032 Camerino, Italy
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11
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Tanaka T, Okuda H, Isonishi A, Terada Y, Kitabatake M, Shinjo T, Nishimura K, Takemura S, Furue H, Ito T, Tatsumi K, Wanaka A. Dermal macrophages set pain sensitivity by modulating the amount of tissue NGF through an SNX25-Nrf2 pathway. Nat Immunol 2023; 24:439-451. [PMID: 36703006 PMCID: PMC9977679 DOI: 10.1038/s41590-022-01418-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2021] [Accepted: 12/16/2022] [Indexed: 01/27/2023]
Abstract
Cross-talk between peripheral neurons and immune cells is important in pain sensation. We identified Snx25 as a pain-modulating gene in a transgenic mouse line with reduced pain sensitivity. Conditional deletion of Snx25 in monocytes and macrophages, but not in peripheral sensory neurons, in mice (Snx25cKO mice) reduced pain responses in both normal and neuropathic conditions. Bone marrow transplantation using Snx25cKO and wild-type mice indicated that macrophages modulated pain sensitivity. Expression of sorting nexin (SNX)25 in dermal macrophages enhanced expression of the neurotrophic factor NGF through the inhibition of ubiquitin-mediated degradation of Nrf2, a transcription factor that activates transcription of Ngf. As such, dermal macrophages set the threshold for pain sensitivity through the production and secretion of NGF into the dermis, and they may cooperate with dorsal root ganglion macrophages in pain perception.
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Affiliation(s)
- Tatsuhide Tanaka
- Department of Anatomy and Neuroscience, Faculty of Medicine, Nara Medical University, Kashihara, Japan.
| | - Hiroaki Okuda
- Department of Functional Anatomy, Graduate School of Medical Science, Kanazawa University, Kanazawa, Japan
| | - Ayami Isonishi
- Department of Anatomy and Neuroscience, Faculty of Medicine, Nara Medical University, Kashihara, Japan
| | - Yuki Terada
- Department of Anatomy and Neuroscience, Faculty of Medicine, Nara Medical University, Kashihara, Japan
| | - Masahiro Kitabatake
- Department of Immunology, Faculty of Medicine, Nara Medical University, Kashihara, Japan
| | - Takeaki Shinjo
- Department of Anatomy and Neuroscience, Faculty of Medicine, Nara Medical University, Kashihara, Japan
| | - Kazuya Nishimura
- Department of Anatomy and Neuroscience, Faculty of Medicine, Nara Medical University, Kashihara, Japan
| | - Shoko Takemura
- Department of Anatomy and Neuroscience, Faculty of Medicine, Nara Medical University, Kashihara, Japan
| | - Hidemasa Furue
- Department of Neurophysiology, Hyogo College of Medicine, Nishinomiya, Japan
| | - Toshihiro Ito
- Department of Immunology, Faculty of Medicine, Nara Medical University, Kashihara, Japan
| | - Kouko Tatsumi
- Department of Anatomy and Neuroscience, Faculty of Medicine, Nara Medical University, Kashihara, Japan
| | - Akio Wanaka
- Department of Anatomy and Neuroscience, Faculty of Medicine, Nara Medical University, Kashihara, Japan.
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12
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Guo TZ, Shi X, Li WW, Wei T, Sahbaie P, Clark JD, Kingery WS. Pronociceptive autoantibodies in the spinal cord mediate nociceptive sensitization, loss of function, and spontaneous pain in the lumbar disk puncture model of chronic back pain. Pain 2023; 164:421-434. [PMID: 35976729 PMCID: PMC9823152 DOI: 10.1097/j.pain.0000000000002725] [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: 03/23/2022] [Accepted: 06/27/2022] [Indexed: 02/06/2023]
Abstract
ABSTRACT Previously, we observed that B cells and autoantibodies mediated chronic nociceptive sensitization in the mouse tibia fracture model of complex regional pain syndrome and that complex regional pain syndrome patient antibodies were pronociceptive in fracture mice lacking mature B cells and antibodies (muMT). The current study used a lumbar spinal disk puncture (DP) model of low back pain in wild-type (WT) and muMT mice to evaluate pronociceptive adaptive immune responses. Spinal disks and cords were collected 3 weeks after DP for polymerase chain reaction and immunohistochemistry analyses. Wild-type DP mice developed 24 weeks of hindpaw mechanical allodynia and hyperalgesia, grip weakness, and a conditioned place preference response indicative of spontaneous pain, but pain responses were attenuated or absent in muMT DP mice. Spinal cord expression of inflammatory cytokines, immune cell markers, and complement components were increased in WT DP mice and in muMT DP mice. Dorsal horn immunostaining in WT DP mice demonstrated glial activation and increased complement 5a receptor expressionin spinal neurons. Serum collected from WT DP mice and injected into muMT DP mice caused nociceptive sensitization, as did intrathecal injection of IgM collected from WT DP mice, and IgM immune complexes were observed in lumbar spinal disks and cord of WT DP mice. Serum from WT tibia fracture mice was not pronociceptive in muMT DP mice and vice versa, evidence that each type of tissue trauma chronically generates its own unique antibodies and targeted antigens. These data further support the pronociceptive autoimmunity hypothesis for the transition from tissue injury to chronic musculoskeletal pain state.
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Affiliation(s)
- Tian-zhi Guo
- Palo Alto Veterans Institute for Research, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, United States
| | - Xiaoyou Shi
- Palo Alto Veterans Institute for Research, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, United States
- Anesthesiology Service, Veterans Affairs Palo Alto Health Care System Palo Alto, CA, United States
- Department of Anesthesia, Stanford University School of Medicine, Stanford, CA, United States
| | - Wen-wu Li
- Palo Alto Veterans Institute for Research, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, United States
- Anesthesiology Service, Veterans Affairs Palo Alto Health Care System Palo Alto, CA, United States
- Department of Anesthesia, Stanford University School of Medicine, Stanford, CA, United States
| | - Tzuping Wei
- Palo Alto Veterans Institute for Research, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, United States
| | - Peyman Sahbaie
- Palo Alto Veterans Institute for Research, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, United States
- Anesthesiology Service, Veterans Affairs Palo Alto Health Care System Palo Alto, CA, United States
- Department of Anesthesia, Stanford University School of Medicine, Stanford, CA, United States
| | - J. David Clark
- Anesthesiology Service, Veterans Affairs Palo Alto Health Care System Palo Alto, CA, United States
- Department of Anesthesia, Stanford University School of Medicine, Stanford, CA, United States
| | - Wade S. Kingery
- Palo Alto Veterans Institute for Research, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, United States
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13
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Modulatory Effect of Neurotrophic Factors on the TRPV1 Expression: Possible Mechanisms Involved in the Antiepileptic Effect of Exercise. ARCHIVES OF NEUROSCIENCE 2023. [DOI: 10.5812/ans-134555] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
Background: Epilepsy is one of the most important diseases of the central nervous system, for which has no definitive treatment. Neurotrophic factors increase the survival of nerve cells and improve the treatment of neurological diseases. Identifying factors that affect the increase of neurotrophins in the brain is an important goal for brain health and function. Objectives: This study aimed to investigate the effectiveness of exercise on neurotrophic factors by influencing the expression of vanilloid receptor type 1 (TRPV1). Methods: Convulsions were induced by injecting pentylenetetrazol (PTZ; 35 mg/kg) five hours after exercise. Animals were divided into five groups: sham (Sham), seizure (PTZ), exercise (EX), exercise with seizure induction (EX+PTZ), and exercise before seizure induction (EX-PTZ). The exercise was 30 minutes of forced running on a treadmill, five days a week for four weeks. Results: The average percentage of NGF cells in the exercise groups (EX), exercise with seizure induction (EX+PTZ), and exercise before seizure induction (EX-PTZ), and GDNF in the exercise group with seizure induction (EX+PTZ) had a significant increase compared to the seizure group (PTZ). Also, TRPV1 activity in exercise groups (EX), exercise with seizure induction (EX+PTZ), and exercise before seizure induction (EX-PTZ) showed a significant increase compared to the seizure group (PTZ). Conclusions: Our findings suggested the possible antiepileptic and antiepileptogenesis effects of exercise through activation of neurotrophic factors and TRPV1 modulation.
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14
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Zheng Q, Dong X, Green DP, Dong X. Peripheral mechanisms of chronic pain. MEDICAL REVIEW 2022; 2:251-270. [PMID: 36067122 PMCID: PMC9381002 DOI: 10.1515/mr-2022-0013] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/26/2022] [Accepted: 06/13/2022] [Indexed: 11/15/2022]
Abstract
Abstract
Acutely, pain serves to protect us from potentially harmful stimuli, however damage to the somatosensory system can cause maladaptive changes in neurons leading to chronic pain. Although acute pain is fairly well controlled, chronic pain remains difficult to treat. Chronic pain is primarily a neuropathic condition, but studies examining the mechanisms underlying chronic pain are now looking beyond afferent nerve lesions and exploring new receptor targets, immune cells, and the role of the autonomic nervous system in contributing chronic pain conditions. The studies outlined in this review reveal how chronic pain is not only confined to alterations in the nervous system and presents findings on new treatment targets and for this debilitating disease.
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Affiliation(s)
- Qin Zheng
- Department of Anesthesiology and Critical Care Medicine, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Xintong Dong
- The Solomon H. Snyder Department of Neuroscience, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
| | - Dustin P. Green
- Department of Neuroscience, Cell Biology, and Anatomy, University of Texas Medical Branch, Galveston, TX, USA
| | - Xinzhong Dong
- The Solomon H. Snyder Department of Neuroscience, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
- Howard Hughes Medical Institute, School of Medicine, Johns Hopkins University, Baltimore, MD, USA
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15
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Gao Y, Mei C, Chen P, Chen X. The contribution of neuro-immune crosstalk to pain in the peripheral nervous system and the spinal cord. Int Immunopharmacol 2022; 107:108700. [DOI: 10.1016/j.intimp.2022.108700] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2022] [Revised: 02/23/2022] [Accepted: 03/10/2022] [Indexed: 12/16/2022]
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16
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Ohashi Y, Uchida K, Fukushima K, Satoh M, Koyama T, Tsuchiya M, Saito H, Uchiyama K, Takahira N, Inoue G, Takaso M. Correlation between CD163 expression and resting pain in patients with hip osteoarthritis: Possible contribution of CD163+ monocytes/macrophages to pain pathogenesis. J Orthop Res 2022; 40:1365-1374. [PMID: 34370345 DOI: 10.1002/jor.25157] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Revised: 07/15/2021] [Accepted: 07/30/2021] [Indexed: 02/04/2023]
Abstract
Expression of CD163, a scavenger receptor specifically expressed by monocytes and macrophages, is elevated in the synovial tissue of patients with knee osteoarthritis (OA) compared with healthy controls. However, the association between CD163 expression in the synovium and pain in OA patients is unclear. We investigated the correlation between synovial CD163 expression and resting and active pain levels in patients with hip osteoarthritis (HOA). To investigate the possible contribution of CD163+ subsets to pain pathogenesis, we compared pain-related cytokine expression and M1/M2 macrophage marker expression in CD163+ and CD163- cells. We performed flow cytometric analysis to study the CD163+ cell population. We also examined pain-related cytokine expression and M1/M2 macrophage marker expression on CD163+ CD14high and CD163+ CD14low cells using cell sorting. Synovial CD163 expression significantly correlated with resting pain levels (p = 0.006; R = 0.321), but not active pain levels (p = 0.155; R = 0.169). Expression of the M1 macrophage marker CD80 was significantly higher in CD163+ than CD163- cells (p = 0.010), as was the expression of M2 macrophage markers CD206 and IL10 (CD206, p = 0.014; IL10, p = 0.005), and TNFA and IL1B (TNFA, p = 0.002; IL1B, p = 0.001). TNFA expression was significantly higher in CD163+ CD14low than CD163+ CD14high cells, while IL1B, IL10, and CD206 expression were comparable among these subsets. Our findings suggest that CD163 expression is associated with higher resting pain scores. As TNF-α plays a role in the pain process, CD163+ CD14low cells expressing TNFA may be a potent contributor to the pathogenesis of resting pain in HOA.
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Affiliation(s)
- Yoshihisa Ohashi
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, Sagamihara City, Kanagawa, Japan
| | - Kentaro Uchida
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, Sagamihara City, Kanagawa, Japan
| | - Kensuke Fukushima
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, Sagamihara City, Kanagawa, Japan
| | - Masashi Satoh
- Department of Immunology, Kitasato University School of Medicine, Sagamihara City, Kanagawa, Japan
| | - Tomohisa Koyama
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, Sagamihara City, Kanagawa, Japan
| | - Maho Tsuchiya
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, Sagamihara City, Kanagawa, Japan
| | - Hiroki Saito
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, Sagamihara City, Kanagawa, Japan
| | - Katsufumi Uchiyama
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, Sagamihara City, Kanagawa, Japan
| | - Naonobu Takahira
- Department of Rehabilitation, Kitasato University School of Allied Health Sciences, Sagamihara City, Kanagawa, Japan
| | - Gen Inoue
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, Sagamihara City, Kanagawa, Japan
| | - Masashi Takaso
- Department of Orthopaedic Surgery, Kitasato University School of Medicine, Sagamihara City, Kanagawa, Japan
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17
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Moraes BC, Ribeiro-Filho HV, Roldão AP, Toniolo EF, Carretero GPB, Sgro GG, Batista FAH, Berardi DE, Oliveira VRS, Tomasin R, Vieceli FM, Pramio DT, Cardoso AB, Figueira ACM, Farah SC, Devi LA, Dale CS, de Oliveira PSL, Schechtman D. Structural analysis of TrkA mutations in patients with congenital insensitivity to pain reveals PLCγ as an analgesic drug target. Sci Signal 2022; 15:eabm6046. [PMID: 35471943 DOI: 10.1126/scisignal.abm6046] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
Abstract
Chronic pain is a major health issue, and the search for new analgesics has become increasingly important because of the addictive properties and unwanted side effects of opioids. To explore potentially new drug targets, we investigated mutations in the NTRK1 gene found in individuals with congenital insensitivity to pain with anhidrosis (CIPA). NTRK1 encodes tropomyosin receptor kinase A (TrkA), the receptor for nerve growth factor (NGF) and that contributes to nociception. Molecular modeling and biochemical analysis identified mutations that decreased the interaction between TrkA and one of its substrates and signaling effectors, phospholipase Cγ (PLCγ). We developed a cell-permeable phosphopeptide derived from TrkA (TAT-pQYP) that bound the Src homology domain 2 (SH2) of PLCγ. In HEK-293T cells, TAT-pQYP inhibited the binding of heterologously expressed TrkA to PLCγ and decreased NGF-induced, TrkA-mediated PLCγ activation and signaling. In mice, intraplantar administration of TAT-pQYP decreased mechanical sensitivity in an inflammatory pain model, suggesting that targeting this interaction may be analgesic. The findings demonstrate a strategy to identify new targets for pain relief by analyzing the signaling pathways that are perturbed in CIPA.
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Affiliation(s)
- Beatriz C Moraes
- Department of Biochemistry, Chemistry Institute, University of São Paulo, SP 05508-000, Brazil
| | - Helder V Ribeiro-Filho
- Brazilian Center for Research in Energy and Materials (CNPEM), Brazilian Biosciences National Laboratory (LNBio) Campinas, SP 13083-100, Brazil
| | - Allan P Roldão
- Department of Biochemistry, Chemistry Institute, University of São Paulo, SP 05508-000, Brazil
| | - Elaine F Toniolo
- Laboratory of Neuromodulation of Experimental Pain (LaNed), Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, SP 05508-000, Brazil
| | - Gustavo P B Carretero
- Department of Biochemistry, Chemistry Institute, University of São Paulo, SP 05508-000, Brazil
| | - Germán G Sgro
- Department of Biochemistry, Chemistry Institute, University of São Paulo, SP 05508-000, Brazil.,Department of Biomolecular Sciences, School of Pharmaceutical Sciences of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP 14040903, Brazil
| | - Fernanda A H Batista
- Brazilian Center for Research in Energy and Materials (CNPEM), Brazilian Biosciences National Laboratory (LNBio) Campinas, SP 13083-100, Brazil
| | - Damian E Berardi
- Department of Biochemistry, Chemistry Institute, University of São Paulo, SP 05508-000, Brazil
| | - Victoria R S Oliveira
- Laboratory of Neuromodulation of Experimental Pain (LaNed), Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, SP 05508-000, Brazil
| | - Rebeka Tomasin
- Department of Biochemistry, Chemistry Institute, University of São Paulo, SP 05508-000, Brazil
| | - Felipe M Vieceli
- Department of Biochemistry, Chemistry Institute, University of São Paulo, SP 05508-000, Brazil
| | - Dimitrius T Pramio
- Department of Biochemistry, Chemistry Institute, University of São Paulo, SP 05508-000, Brazil
| | - Alexandre B Cardoso
- Department of Biochemistry, Chemistry Institute, University of São Paulo, SP 05508-000, Brazil
| | - Ana C M Figueira
- Brazilian Center for Research in Energy and Materials (CNPEM), Brazilian Biosciences National Laboratory (LNBio) Campinas, SP 13083-100, Brazil
| | - Shaker C Farah
- Department of Biochemistry, Chemistry Institute, University of São Paulo, SP 05508-000, Brazil
| | - Lakshmi A Devi
- Department of Pharmacological Sciences, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA
| | - Camila S Dale
- Laboratory of Neuromodulation of Experimental Pain (LaNed), Department of Anatomy, Institute of Biomedical Sciences, University of Sao Paulo, SP 05508-000, Brazil
| | - Paulo S L de Oliveira
- Brazilian Center for Research in Energy and Materials (CNPEM), Brazilian Biosciences National Laboratory (LNBio) Campinas, SP 13083-100, Brazil
| | - Deborah Schechtman
- Department of Biochemistry, Chemistry Institute, University of São Paulo, SP 05508-000, Brazil
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18
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Tong Y, Liu J, Yang T, Wang J, Zhao T, Kang Y, Fan Y. Association of Pain with Plasma C5a in Patients with Neuromyelitis Optica Spectrum Disorders During Remission. Neuropsychiatr Dis Treat 2022; 18:1039-1046. [PMID: 35615424 PMCID: PMC9124695 DOI: 10.2147/ndt.s359620] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2022] [Accepted: 05/06/2022] [Indexed: 11/23/2022] Open
Abstract
OBJECTIVE To investigate the association of pain with plasma C5a levels and other related inflammatory cytokines in neuromyelitis optica spectrum disorders (NMOSD) patients during remission. PARTICIPANTS AND METHODS NMOSD patients (n = 87) and healthy controls (HC; n = 44) were consecutively recruited between January 2017 and April 2018. Plasma complement 5 (C5), C5a, interleukin (IL)-6, tumor necrosis factor (TNF)-α, and IL-1β levels were detected. Visual Analogue Scale (VAS), ID pain scale, 24-item Hamilton Depression Scale (HAMD), Multiple Sclerosis Impact Scale (MSIS-29), and Kurtzke Expanded Disability Status Scale (EDSS) were used to evaluate the degree and types of pain, the existence of depression and anxiety, and the life quality and disability status of patients. Binary logistic regression equation was used to assess the association of pain with plasma C5a levels. RESULTS Among the 87 NMOSD patients, 40 complained of pain that in 67.5% (27/40) of cases had a neuropathic component (ID pain ≥2). Plasma C5a, IL-6, TNF-α, and IL-1β levels were significantly elevated in NMOSD patients than in HC. Plasma C5 levels were negatively correlated with the time from sampling to the last relapse or disease onset. NMOSD patients with pain had higher plasma C5a levels, and they suffered from a higher disability, more anxiety, and worse life quality compared to those patients without pain. In NMOSD patients with pain, there were not significant differences between plasma levels of C5, C5a, IL-6, TNF-α, or IL-1β, regardless of neuropathic pain or not. Binary logistic regression showed that the OR of plasma C5a level was 1.002, with gender and EDSS score were identified as independent factors associated with pain in NMOSD. CONCLUSION NMOSD patients during remission had elevated C5a and related inflammatory cytokines levels in peripheral blood. Elevated C5a may have a unique role in the pathogenesis of pain in NMOSD patients.
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Affiliation(s)
- Yanping Tong
- Department of Traditional Chinese Medicine, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, People's Republic of China.,Beijing Integrative Medicine on Encephalopathy Research Institution, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, People's Republic of China
| | - Jie Liu
- Department of Respiratory Medicine, Beijing First Hospital of Integrated Chinese and Western Medicine, Beijing, 100026, People's Republic of China
| | - Tao Yang
- Department of Traditional Chinese Medicine, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, People's Republic of China.,Beijing Integrative Medicine on Encephalopathy Research Institution, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, People's Republic of China
| | - Jingwen Wang
- Department of Neurology, Beijing Miyun District Hospital of Traditional Chinese Medicine, Beijing, 101599, People's Republic of China
| | - Tianyou Zhao
- Department of Neurology, Beijing Miyun District Hospital of Traditional Chinese Medicine, Beijing, 101599, People's Republic of China
| | - Yuezhi Kang
- Department of Traditional Chinese Medicine, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, People's Republic of China.,Beijing Integrative Medicine on Encephalopathy Research Institution, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, People's Republic of China
| | - Yongping Fan
- Department of Traditional Chinese Medicine, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, People's Republic of China.,Beijing Integrative Medicine on Encephalopathy Research Institution, Beijing Tiantan Hospital, Capital Medical University, Beijing, 100070, People's Republic of China
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19
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Li L, Du X, Ling H, Li Y, Wu X, Jin A, Yang M. Gene correlation network analysis to identify regulatory factors in sciatic nerve injury. J Orthop Surg Res 2021; 16:622. [PMID: 34663380 PMCID: PMC8522103 DOI: 10.1186/s13018-021-02756-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2021] [Accepted: 09/28/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Sciatic nerve injury (SNI), which frequently occurs under the traumatic hip and hip fracture dislocation, induces serious complications such as motor and sensory loss, muscle atrophy, or even disabling. The present work aimed to determine the regulating factors and gene network related to the SNI pathology. METHODS Sciatic nerve injury dataset GSE18803 with 24 samples was divided into adult group and neonate group. Weighted gene co-expression network analysis (WGCNA) was carried out to identify modules associated with SNI in the two groups. Moreover, differentially expressed genes (DEGs) were determined from every group, separately. Subsequently, co-expression network and protein-protein interaction (PPI) network were overlapped to identify hub genes, while functional enrichment and Reactome analysis were used for a comprehensive analysis of potential pathways. GSE30165 was used as the test set for investigating the hub gene involvement within SNI. Gene set enrichment analysis (GSEA) was performed separately using difference between samples and gene expression level as phenotype label to further prove SNI-related signaling pathways. In addition, immune infiltration analysis was accomplished by CIBERSORT. Finally, Drug-Gene Interaction database (DGIdb) was employed for predicting the possible therapeutic agents. RESULTS 14 SNI status modules and 97 DEGs were identified in adult group, while 15 modules and 21 DEGs in neonate group. A total of 12 hub genes was overlapping from co-expression and PPI network. After the results from both test and training sets were overlapped, we verified that the ten real hub genes showed remarkably up-regulation within SNI. According to functional enrichment of hub genes, the above genes participated in the immune effector process, inflammatory responses, the antigen processing and presentation, and the phagocytosis. GSEA also supported that gene sets with the highest significance were mostly related to the cytokine-cytokine receptor interaction. Analysis of hub genes possible related signaling pathways using gene expression level as phenotype label revealed an enrichment involved in Lysosome, Chemokine signaling pathway, and Neurotrophin signaling pathway. Immune infiltration analysis showed that Macrophages M2 and Regulatory T cells may participate in the development of SNI. At last, 25 drugs were screened from DGIdb to improve SNI treatment. CONCLUSIONS The gene expression network is determined in the present work based on the related regulating factors within SNI, which sheds more light on SNI pathology and offers the possible biomarkers and therapeutic targets in subsequent research.
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Affiliation(s)
- Liuxun Li
- Department of Spine Surgery, the First Affiliated Hospital, Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong, China
| | - Xiaokang Du
- Department of Spine Surgery, the First Affiliated Hospital, Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong, China
| | - Haiqian Ling
- Department of Spine Surgery, the First Affiliated Hospital, Shenzhen University, Shenzhen Second People's Hospital, Shenzhen, Guangdong, China
| | - Yuhang Li
- Department of Joint and Trauma Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xuemin Wu
- Department of Endocrinology, Shenzhen Hospital of Guangzhou University of Chinese Medicine (Futian), Shenzhen, Guangdong, China
| | - Anmin Jin
- Department of Spine Surgery, ZhuJiang Hospital of Southern Medical University, Southern Medical University, Guangzhou, Guangdong, China
| | - Meiling Yang
- Department of Oncology, Shenzhen Hospital of Guangzhou University of Chinese Medicine (Futian), Shenzhen, 518034, Guangdong, China.
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20
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Sapio MR, Kim JJ, Loydpierson AJ, Maric D, Goto T, Vazquez FA, Dougherty MK, Narasimhan R, Muhly WT, Iadarola MJ, Mannes AJ. The Persistent Pain Transcriptome: Identification of Cells and Molecules Activated by Hyperalgesia. THE JOURNAL OF PAIN 2021; 22:1146-1179. [PMID: 33892151 PMCID: PMC9441406 DOI: 10.1016/j.jpain.2021.03.155] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2020] [Revised: 03/12/2021] [Accepted: 03/16/2021] [Indexed: 12/21/2022]
Abstract
During persistent pain, the dorsal spinal cord responds to painful inputs from the site of injury, but the molecular modulatory processes have not been comprehensively examined. Using transcriptomics and multiplex in situ hybridization, we identified the most highly regulated receptors and signaling molecules in rat dorsal spinal cord in peripheral inflammatory and post-surgical incisional pain models. We examined a time course of the response including acute (2 hours) and longer term (2 day) time points after peripheral injury representing the early onset and instantiation of hyperalgesic processes. From this analysis, we identify a key population of superficial dorsal spinal cord neurons marked by somatotopic upregulation of the opioid neuropeptide precursor prodynorphin, and 2 receptors: the neurokinin 1 receptor, and anaplastic lymphoma kinase. These alterations occur specifically in the glutamatergic subpopulation of superficial dynorphinergic neurons. In addition to specific neuronal gene regulation, both models showed induction of broad transcriptional signatures for tissue remodeling, synaptic rearrangement, and immune signaling defined by complement and interferon induction. These signatures were predominantly induced ipsilateral to tissue injury, implying linkage to primary afferent drive. We present a comprehensive set of gene regulatory events across 2 models that can be targeted for the development of non-opioid analgesics. PERSPECTIVE: The deadly impact of the opioid crisis and the need to replace morphine and other opioids in clinical practice is well recognized. Embedded within this research is an overarching goal of obtaining foundational knowledge from transcriptomics to search for non-opioid analgesic targets. Developing such analgesics would address unmet clinical needs.
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Affiliation(s)
- Matthew R Sapio
- Department of Perioperative Medicine, National Institutes of Health Clinical Center, NIH, Bethesda, Maryland
| | - Jenny J Kim
- Department of Perioperative Medicine, National Institutes of Health Clinical Center, NIH, Bethesda, Maryland
| | - Amelia J Loydpierson
- Department of Perioperative Medicine, National Institutes of Health Clinical Center, NIH, Bethesda, Maryland
| | - Dragan Maric
- National Institute of Neurological Disorders and Stroke, Flow and Imaging Cytometry Core Facility, NIH, Bethesda, Maryland
| | - Taichi Goto
- Department of Perioperative Medicine, National Institutes of Health Clinical Center, NIH, Bethesda, Maryland; National Institute of Nursing Research, Symptom Management Branch, NIH, Bethesda, Maryland; Japan Society for the Promotion of Science Overseas Research Fellowship, Tokyo, Japan
| | - Fernando A Vazquez
- Department of Perioperative Medicine, National Institutes of Health Clinical Center, NIH, Bethesda, Maryland
| | - Mary K Dougherty
- Department of Perioperative Medicine, National Institutes of Health Clinical Center, NIH, Bethesda, Maryland
| | - Radhika Narasimhan
- Department of Perioperative Medicine, National Institutes of Health Clinical Center, NIH, Bethesda, Maryland
| | - Wallis T Muhly
- National Institute of Nursing Research, Symptom Management Branch, NIH, Bethesda, Maryland; Department of Anesthesiology and Critical Care Medicine, Children's Hospital of Philadelphia, Perelman School of Medicine at the University of Pennsylvania, Philadelphia, Pennsylvania
| | - Michael J Iadarola
- Department of Perioperative Medicine, National Institutes of Health Clinical Center, NIH, Bethesda, Maryland.
| | - Andrew J Mannes
- Department of Perioperative Medicine, National Institutes of Health Clinical Center, NIH, Bethesda, Maryland
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21
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The complement cascade in the regulation of neuroinflammation, nociceptive sensitization, and pain. J Biol Chem 2021; 297:101085. [PMID: 34411562 PMCID: PMC8446806 DOI: 10.1016/j.jbc.2021.101085] [Citation(s) in RCA: 23] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Revised: 08/13/2021] [Accepted: 08/13/2021] [Indexed: 01/13/2023] Open
Abstract
The complement cascade is a key component of the innate immune system that is rapidly recruited through a cascade of enzymatic reactions to enable the recognition and clearance of pathogens and promote tissue repair. Despite its well-understood role in immunology, recent studies have highlighted new and unexpected roles of the complement cascade in neuroimmune interaction and in the regulation of neuronal processes during development, aging, and in disease states. Complement signaling is particularly important in directing neuronal responses to tissue injury, neurotrauma, and nerve lesions. Under physiological conditions, complement-dependent changes in neuronal excitability, synaptic strength, and neurite remodeling promote nerve regeneration, tissue repair, and healing. However, in a variety of pathologies, dysregulation of the complement cascade leads to chronic inflammation, persistent pain, and neural dysfunction. This review describes recent advances in our understanding of the multifaceted cross-communication that takes place between the complement system and neurons. In particular, we focus on the molecular and cellular mechanisms through which complement signaling regulates neuronal excitability and synaptic plasticity in the nociceptive pathways involved in pain processing in both health and disease. Finally, we discuss the future of this rapidly growing field and what we believe to be the significant knowledge gaps that need to be addressed.
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22
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Jiang GT, Shao L, Kong S, Zeng ML, Cheng JJ, Chen TX, Han S, Yin J, Liu WH, He XH, Liu YM, Gongga L, Peng BW. Complement C3 Aggravates Post-epileptic Neuronal Injury Via Activation of TRPV1. Neurosci Bull 2021; 37:1427-1440. [PMID: 34309810 DOI: 10.1007/s12264-021-00750-4] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 04/07/2021] [Indexed: 02/05/2023] Open
Abstract
Epilepsy is a brain condition characterized by the recurrence of unprovoked seizures. Recent studies have shown that complement component 3 (C3) aggravate the neuronal injury in epilepsy. And our previous studies revealed that TRPV1 (transient receptor potential vanilloid type 1) is involved in epilepsy. Whether complement C3 regulation of neuronal injury is related to the activation of TRPV1 during epilepsy is not fully understood. We found that in a mouse model of status epilepticus (SE), complement C3 derived from astrocytes was increased and aggravated neuronal injury, and that TRPV1-knockout rescued neurons from the injury induced by complement C3. Circular RNAs are abundant in the brain, and the reduction of circRad52 caused by complement C3 promoted the expression of TRPV1 and exacerbated neuronal injury. Mechanistically, disorders of neuron-glia interaction mediated by the C3-TRPV1 signaling pathway may be important for the induction of neuronal injury. This study provides support for the hypothesis that the C3-TRPV1 pathway is involved in the prevention and treatment of neuronal injury and cognitive disorders.
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Affiliation(s)
- Guang-Tong Jiang
- Department of Physiology, Hubei Provincial Key Laboratory of Developmentally Originated Disease, School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, China
| | - Lin Shao
- Department of Physiology, Hubei Provincial Key Laboratory of Developmentally Originated Disease, School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, China
| | - Shuo Kong
- Department of Physiology, Hubei Provincial Key Laboratory of Developmentally Originated Disease, School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, China
| | - Meng-Liu Zeng
- Department of Physiology, Hubei Provincial Key Laboratory of Developmentally Originated Disease, School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, China
| | - Jing-Jing Cheng
- Department of Physiology, Hubei Provincial Key Laboratory of Developmentally Originated Disease, School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, China
| | - Tao-Xiang Chen
- Department of Physiology, Hubei Provincial Key Laboratory of Developmentally Originated Disease, School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, China
| | - Song Han
- Department of Pathophysiology, School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, China
| | - Jun Yin
- Department of Pathophysiology, School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, China
| | - Wan-Hong Liu
- Department of Immunology, School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, China
| | - Xiao-Hua He
- Department of Pathophysiology, School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, China
| | - Yu-Min Liu
- Department of Neurology, Zhongnan Hospital, Wuhan University, Wuhan, 430071, China
| | - Lanzi Gongga
- Medical College, Tibet University, Lhasa, 850013, China
| | - Bi-Wen Peng
- Department of Physiology, Hubei Provincial Key Laboratory of Developmentally Originated Disease, School of Basic Medical Sciences, Wuhan University, Wuhan, 430071, China.
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23
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Yu ML, Wei RD, Zhang T, Wang JM, Cheng Y, Qin FF, Fu SP, Lu ZG, Lu SF. Electroacupuncture Relieves Pain and Attenuates Inflammation Progression Through Inducing IL-10 Production in CFA-Induced Mice. Inflammation 2021; 43:1233-1245. [PMID: 32198725 DOI: 10.1007/s10753-020-01203-2] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The therapeutic effect of electroacupuncture (EA) on inflammatory pain has been well recognized clinically, but the mechanism is unclear. Interleukin-10 (IL-10), which is produced by regulatory T (Treg) cell, is a key anti-inflammatory cytokine for relieving inflammatory pain. Therefore, the aim of this study is to investigate whether EA could inhibit CFA-induced pain and attenuate inflammation progression by regulating the activation of immunocyte and inducing the expression of IL-10. In this study, mice were treated with EA (2/100 Hz, 2 mA) for five consecutive days after 1 day of CFA injection. The behavioral tests were measured and analyzed after the daily EA treatment; then, hind paw, spinal cord, and spleen tissues were prepared for assessment. The results showed that EA treatment significantly increased the mechanical threshold and thermal latency after CFA injection and boosted the expression of IL-10 in paw and spinal cord tissues. EA treatment promoted Treg cells; suppressed macrophage and neutrophils cells; reduced the expression of IL-1β, NLRP3, and TNF-α; and ultimately relieved inflammatory pain. The findings suggested that the analgesic and anti-inflammatory effect of EA treatment could be partially associated with suppression of pro-inflammatory cytokines mediated by induction of IL-10.
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Affiliation(s)
- Mei-Ling Yu
- Nanjing University of Chinese Medicine, First Clinical Medical College, Nanjing, China.,Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China
| | - Rui-de Wei
- School of Medicine and Holistic Integrative Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Tao Zhang
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China
| | - Jun-Meng Wang
- Acupuncture and Tuina School, Chengdu University of Traditional Chinese Medicine, Chengdu, Sichuan, China
| | - Yu Cheng
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China
| | - Fen-Fen Qin
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China
| | - Shu-Ping Fu
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China
| | - Zhi-Gang Lu
- Nanjing University of Chinese Medicine, First Clinical Medical College, Nanjing, China. .,Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China.
| | - Sheng-Feng Lu
- Key Laboratory of Acupuncture and Medicine Research of Ministry of Education, Nanjing University of Chinese Medicine, Nanjing, China.
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24
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Borges JP, Mekhail K, Fairn GD, Antonescu CN, Steinberg BE. Modulation of Pathological Pain by Epidermal Growth Factor Receptor. Front Pharmacol 2021; 12:642820. [PMID: 34054523 PMCID: PMC8149758 DOI: 10.3389/fphar.2021.642820] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Accepted: 04/26/2021] [Indexed: 12/18/2022] Open
Abstract
Chronic pain has been widely recognized as a major public health problem that impacts multiple aspects of patient quality of life. Unfortunately, chronic pain is often resistant to conventional analgesics, which are further limited by their various side effects. New therapeutic strategies and targets are needed to better serve the millions of people suffering from this devastating disease. To this end, recent clinical and preclinical studies have implicated the epidermal growth factor receptor signaling pathway in chronic pain states. EGFR is one of four members of the ErbB family of receptor tyrosine kinases that have key roles in development and the progression of many cancers. EGFR functions by activating many intracellular signaling pathways following binding of various ligands to the receptor. Several of these signaling pathways, such as phosphatidylinositol 3-kinase, are known mediators of pain. EGFR inhibitors are known for their use as cancer therapeutics but given recent evidence in pilot clinical and preclinical investigations, may have clinical use for treating chronic pain. Here, we review the clinical and preclinical evidence implicating EGFR in pathological pain states and provide an overview of EGFR signaling highlighting how EGFR and its ligands drive pain hypersensitivity and interact with important pain pathways such as the opioid system.
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Affiliation(s)
- Jazlyn P Borges
- Neurosciences and Mental Health Program, The Hospital for Sick Children, Toronto, ON, Canada.,Department of Physiology, University of Toronto, Toronto, ON, Canada
| | - Katrina Mekhail
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, ON, Canada.,Department of Biochemistry, University of Toronto, Toronto, ON, Canada
| | - Gregory D Fairn
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, ON, Canada.,Department of Biochemistry, University of Toronto, Toronto, ON, Canada.,Department of Surgery, University of Toronto, Toronto, ON, Canada.,Department of Laboratory Medicine and Pathobiology, University of Toronto, Toronto, ON, Canada.,Department of Chemistry and Biology, Ryerson University, Toronto, ON, Canada
| | - Costin N Antonescu
- Keenan Research Centre for Biomedical Science, St. Michael's Hospital, Toronto, ON, Canada.,Department of Chemistry and Biology, Ryerson University, Toronto, ON, Canada
| | - Benjamin E Steinberg
- Neurosciences and Mental Health Program, The Hospital for Sick Children, Toronto, ON, Canada.,Department of Physiology, University of Toronto, Toronto, ON, Canada.,Department of Anesthesia and Pain Medicine, The Hospital for Sick Children, Toronto, ON, Canada
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25
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Shi X, Guo TZ, Li WW, Birklein F, Escolano FL, Herrnberger M, Clark JD, Kingery WS. C5a complement and cytokine signaling mediate the pronociceptive effects of complex regional pain syndrome patient IgM in fracture mice. Pain 2021; 162:1400-1415. [PMID: 33259455 PMCID: PMC8049958 DOI: 10.1097/j.pain.0000000000002150] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Accepted: 11/03/2020] [Indexed: 11/26/2022]
Abstract
ABSTRACT It has been proposed that complex regional pain syndrome (CRPS) is a posttraumatic autoimmune disease. Previously, we observed that B cells contribute to CRPS-like changes in a mouse tibia fracture model, and that early (<12 months duration) CRPS patient IgM antibodies have pronociceptive effects in the skin and spinal cord of muMT fracture mice lacking B cells. The current study evaluated the pronociceptive effects of intraplantar or intrathecal injections of early CRPS IgM (5 µg) in muMT fracture mice. Skin and lumbar spinal cord were collected for immunohistochemistry and polymerase chain reaction analyses. Wild-type mice exhibited postfracture increases in complement component C5a and its receptor expression in skin and spinal cord, predominantly on dermal macrophages and spinal microglia. Intraplantar IgM injection caused nociceptive sensitization in muMT fracture mice with increased complement component C1q and inflammatory cytokine expression, and these IgM effects were blocked by a C5a receptor antagonist (PMX53) or a global cytokine inhibitor (pentoxifylline). Intrathecal IgM injection also had pronociceptive effects with increased spinal cytokine expression, effects that were blocked by PMX53 or pentoxifylline treatment. Intrathecal injection of chronic (>12 months duration) CRPS patient IgM (but not IgG) caused nociceptive sensitization in muMT fracture mice, but intraplantar injection of chronic CRPS IgM or IgG had no effect. We postulate that CRPS IgM antibodies bind to neoantigens in the fracture limb skin and corresponding spinal cord to activate C5a complement signaling in macrophages and microglia, evoking proinflammatory cytokine expression contributing to nociceptive sensitization in the injured limb.
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Affiliation(s)
- Xiaoyou Shi
- Palo Alto Veterans Institute for Research, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, United States
- Anesthesiology Service, Veterans Affairs Palo Alto Health Care System Palo Alto, CA, United States
- Department of Anesthesia, Stanford University School of Medicine, Stanford, CA, United States
| | - Tian-zhi Guo
- Palo Alto Veterans Institute for Research, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, United States
| | - Wen-wu Li
- Palo Alto Veterans Institute for Research, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, United States
- Anesthesiology Service, Veterans Affairs Palo Alto Health Care System Palo Alto, CA, United States
- Department of Anesthesia, Stanford University School of Medicine, Stanford, CA, United States
| | - Frank Birklein
- Department of Neurology, University Medical Center of Johannes Gutenberg University, Mainz, Germany
| | - Fabiola L. Escolano
- Department of Neurology, University Medical Center of Johannes Gutenberg University, Mainz, Germany
| | - Myriam Herrnberger
- Department of Neurology, University Medical Center of Johannes Gutenberg University, Mainz, Germany
| | - J. David Clark
- Anesthesiology Service, Veterans Affairs Palo Alto Health Care System Palo Alto, CA, United States
- Department of Anesthesia, Stanford University School of Medicine, Stanford, CA, United States
| | - Wade S. Kingery
- Palo Alto Veterans Institute for Research, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, United States
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26
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Silva de França F, Villas-Boas IM, Cogliati B, Woodruff TM, Reis EDS, Lambris JD, Tambourgi DV. C5a-C5aR1 Axis Activation Drives Envenomation Immunopathology by the Snake Naja annulifera. Front Immunol 2021; 12:652242. [PMID: 33936074 PMCID: PMC8082402 DOI: 10.3389/fimmu.2021.652242] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2021] [Accepted: 03/22/2021] [Indexed: 12/03/2022] Open
Abstract
Systemic complement activation drives a plethora of pathological conditions, but its role in snake envenoming remains obscure. Here, we explored complement's contribution to the physiopathogenesis of Naja annulifera envenomation. We found that N. annulifera venom promoted the generation of C3a, C4a, C5a, and the soluble Terminal Complement Complex (sTCC) mediated by the action of snake venom metalloproteinases. N. annulifera venom also induced the release of lipid mediators and chemokines in a human whole-blood model. This release was complement-mediated, since C3/C3b and C5a Receptor 1 (C5aR1) inhibition mitigated the effects. In an experimental BALB/c mouse model of envenomation, N. annulifera venom promoted lipid mediator and chemokine production, neutrophil influx, and swelling at the injection site in a C5a-C5aR1 axis-dependent manner. N. annulifera venom induced systemic complementopathy and increased interleukin and chemokine production, leukocytosis, and acute lung injury (ALI). Inhibition of C5aR1 with the cyclic peptide antagonist PMX205 rescued mice from these systemic reactions and abrogated ALI development. These data reveal hitherto unrecognized roles for complement in envenomation physiopathogenesis, making complement an interesting therapeutic target in envenomation by N. annulifera and possibly by other snake venoms.
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Affiliation(s)
| | | | - Bruno Cogliati
- Department of Pathology, School of Veterinary Medicine and Animal Science, University of São Paulo, São Paulo, Brazil
| | - Trent M. Woodruff
- Neuroinflammation Laboratory, School of Biomedical Sciences, The University of Queensland, St Lucia, QLD, Australia
| | - Edimara da Silva Reis
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - John D. Lambris
- Department of Pathology and Laboratory Medicine, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
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27
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Lowy DB, Makker PGS, Moalem-Taylor G. Cutaneous Neuroimmune Interactions in Peripheral Neuropathic Pain States. Front Immunol 2021; 12:660203. [PMID: 33912189 PMCID: PMC8071857 DOI: 10.3389/fimmu.2021.660203] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2021] [Accepted: 03/17/2021] [Indexed: 12/14/2022] Open
Abstract
Bidirectional interplay between the peripheral immune and nervous systems plays a crucial role in maintaining homeostasis and responding to noxious stimuli. This crosstalk is facilitated by a variety of cytokines, inflammatory mediators and neuropeptides. Dysregulation of this delicate physiological balance is implicated in the pathological mechanisms of various skin disorders and peripheral neuropathies. The skin is a highly complex biological structure within which peripheral sensory nerve terminals and immune cells colocalise. Herein, we provide an overview of the sensory innervation of the skin and immune cells resident to the skin. We discuss modulation of cutaneous immune response by sensory neurons and their mediators (e.g., nociceptor-derived neuropeptides), and sensory neuron regulation by cutaneous immune cells (e.g., nociceptor sensitization by immune-derived mediators). In particular, we discuss recent findings concerning neuroimmune communication in skin infections, psoriasis, allergic contact dermatitis and atopic dermatitis. We then summarize evidence of neuroimmune mechanisms in the skin in the context of peripheral neuropathic pain states, including chemotherapy-induced peripheral neuropathy, diabetic polyneuropathy, post-herpetic neuralgia, HIV-induced neuropathy, as well as entrapment and traumatic neuropathies. Finally, we highlight the future promise of emerging therapies associated with skin neuroimmune crosstalk in neuropathic pain.
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Affiliation(s)
- Daniel B Lowy
- School of Medical Sciences, The University of New South Wales, UNSW Sydney, Sydney, NSW, Australia
| | - Preet G S Makker
- School of Medical Sciences, The University of New South Wales, UNSW Sydney, Sydney, NSW, Australia
| | - Gila Moalem-Taylor
- School of Medical Sciences, The University of New South Wales, UNSW Sydney, Sydney, NSW, Australia
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28
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Emerging Role of C5 Complement Pathway in Peripheral Neuropathies: Current Treatments and Future Perspectives. Biomedicines 2021; 9:biomedicines9040399. [PMID: 33917266 PMCID: PMC8067968 DOI: 10.3390/biomedicines9040399] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 03/30/2021] [Accepted: 04/01/2021] [Indexed: 12/12/2022] Open
Abstract
The complement system is a key component of innate immunity since it plays a critical role in inflammation and defense against common pathogens. However, an inappropriate activation of the complement system is involved in numerous disorders, including peripheral neuropathies. Current strategies for neuropathy-related pain fail to achieve adequate pain relief, and although several therapies are used to alleviate symptoms, approved disease-modifying treatments are unavailable. This urgent medical need is driving the development of therapeutic agents for this condition, and special emphasis is given to complement-targeting approaches. Recent evidence has underscored the importance of complement component C5a and its receptor C5aR1 in inflammatory and neuropathic pain, indicating that C5a/C5aR1 axis activation triggers a cascade of events involved in pathophysiology of peripheral neuropathy and painful neuro-inflammatory states. However, the underlying pathophysiological mechanisms of this signaling in peripheral neuropathy are not fully known. Here, we provide an overview of complement pathways and major components associated with dysregulated complement activation in peripheral neuropathy, and of drugs under development targeting the C5 system. C5/C5aR1 axis modulators could represent a new strategy to treat complement-related peripheral neuropathies. Specifically, we describe novel C5aR allosteric modulators, which may potentially become new tools in the therapeutic armory against neuropathic pain.
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29
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Sugimoto J, Satoyoshi H, Takahata K, Muraoka S. Fabry disease-associated globotriaosylceramide induces mechanical allodynia via activation of signaling through proNGF-p75 NTR but not mature NGF-TrkA. Eur J Pharmacol 2021; 895:173882. [PMID: 33482180 DOI: 10.1016/j.ejphar.2021.173882] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 01/12/2021] [Accepted: 01/14/2021] [Indexed: 01/14/2023]
Abstract
Fabry disease (FD) is an X-linked metabolic storage disorder arising from the deficiency of lysosomal α-galactosidase A, which leads to the gradual accumulation of glycosphingolipids, mainly globotriaosylceramide (Gb3), throughout the body. Pain in the extremities is an early symptom of FD; however, the underlying pathophysiological mechanisms remain unknown. α-Galactosidase A knockout animals exhibit nociceptive behaviors, with enhanced expression levels of several ion channels. These characteristics are observed in animals treated with nerve growth factor (NGF). Here, we aimed to elucidate the potential of NGF signaling as a cause of FD-associated pain, using intraplantar Gb3-treated mice displaying mechanical allodynia. Treatment with a neutralizing antibody against a precursor of NGF (proNGF) or its receptor, p75 neurotrophin receptor (p75NTR), resulted in the recovery from Gb3-induced pain. Conversely, anti-NGF and anti-tropomyosin receptor kinase A antibodies failed to exert analgesic effects. Gb3 injection had no effects on the expression levels of proNGF and p75NTR in the plantar skin and dorsal root ganglia, suggesting that Gb3 activates the pain pathway, possibly mediated through functional up-regulation of proNGF-p75NTR signaling. Furthermore, by pharmacological approaches using a protein kinase A (PKA) inhibitor and a cholesterol-removing agent, we found that p75NTR-phosphorylating PKA and lipid rafts for phosphorylated p75NTR translocation were required for Gb3-induced pain. These results suggest that acute exposure to Gb3 induces mechanical allodynia via activation of the proNGF-p75NTR pathway, which involves lipid rafts and PKA. Our findings provide new pathological insights into FD-associated pain, and suggest the need to develop therapeutic interventions targeting proNGF-p75NTR signaling.
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Affiliation(s)
- Junya Sugimoto
- Department of Scientific Research, Fujimoto Pharmaceutical Corporation, 1-3-40 Nishiotsuka, Matsubara, Osaka, 580-8503, Japan
| | - Hiroshi Satoyoshi
- Department of Scientific Research, Fujimoto Pharmaceutical Corporation, 1-3-40 Nishiotsuka, Matsubara, Osaka, 580-8503, Japan
| | - Kazue Takahata
- Department of Scientific Research, Fujimoto Pharmaceutical Corporation, 1-3-40 Nishiotsuka, Matsubara, Osaka, 580-8503, Japan.
| | - Shizuko Muraoka
- Department of Scientific Research, Fujimoto Pharmaceutical Corporation, 1-3-40 Nishiotsuka, Matsubara, Osaka, 580-8503, Japan
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30
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Lacagnina MJ, Heijnen CJ, Watkins LR, Grace PM. Autoimmune regulation of chronic pain. Pain Rep 2021; 6:e905. [PMID: 33981931 PMCID: PMC8108590 DOI: 10.1097/pr9.0000000000000905] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2020] [Revised: 11/19/2020] [Accepted: 01/19/2021] [Indexed: 01/24/2023] Open
Abstract
Chronic pain is an unpleasant and debilitating condition that is often poorly managed by existing therapeutics. Reciprocal interactions between the nervous system and the immune system have been recognized as playing an essential role in the initiation and maintenance of pain. In this review, we discuss how neuroimmune signaling can contribute to peripheral and central sensitization and promote chronic pain through various autoimmune mechanisms. These pathogenic autoimmune mechanisms involve the production and release of autoreactive antibodies from B cells. Autoantibodies-ie, antibodies that recognize self-antigens-have been identified as potential molecules that can modulate the function of nociceptive neurons and thereby induce persistent pain. Autoantibodies can influence neuronal excitability by activating the complement pathway; by directly signaling at sensory neurons expressing Fc gamma receptors, the receptors for the Fc fragment of immunoglobulin G immune complexes; or by binding and disrupting ion channels expressed by nociceptors. Using examples primarily from rheumatoid arthritis, complex regional pain syndrome, and channelopathies from potassium channel complex autoimmunity, we suggest that autoantibody signaling at the central nervous system has therapeutic implications for designing novel disease-modifying treatments for chronic pain.
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Affiliation(s)
- Michael J. Lacagnina
- Laboratories of Neuroimmunology, Department of Symptom Research, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Cobi J. Heijnen
- Laboratories of Neuroimmunology, Department of Symptom Research, University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Linda R. Watkins
- Department of Psychology and Neuroscience, Center for Neuroscience, University of Colorado, Boulder, CO, USA
| | - Peter M. Grace
- Laboratories of Neuroimmunology, Department of Symptom Research, University of Texas MD Anderson Cancer Center, Houston, TX, USA
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31
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Shouman K, Benarroch EE. Peripheral neuroimmune interactions: selected review and some clinical implications. Clin Auton Res 2021; 31:477-489. [PMID: 33641054 PMCID: PMC7914391 DOI: 10.1007/s10286-021-00787-5] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2020] [Accepted: 02/09/2021] [Indexed: 02/06/2023]
Abstract
Purpose To provide a brief and focused review on peripheral neuroimmune interactions and their implications for some clinical disorders. Methods Narrative review of the literature including of English-language articles published between 1985 and 2021 using PubMed and MEDLINE. Results Many studies on experimental models and in vitro indicate that there are close interactions between the neural and immune systems. Processes from sensory afferents and autonomic efferents co-localize with immune cells and interact at discrete anatomical sites forming neuroimmune units. These neuroimmune interactions are bidirectional and mediated by a wide range of soluble factors including neuropeptides, classical neurotransmitters, cytokines, and other molecules that mediate complex cross-talk among nerves and immune cells. Small-diameter sensory afferents express a wide range of receptors that respond directly to tissue damage or pathogen signals and to chemokines, cytokines, or other molecules released from immune cells. Reciprocally, immune cells respond to neurotransmitters released from nociceptive and autonomic fibers. Neuroimmune interactions operate both at peripheral tissues and at the level of the central nervous system. Both centrally and peripherally, glial cells have a major active role in this bidirectional communication. Conclusions Peripheral neuroimmune interactions are complex and importantly contribute to the pathophysiology of several disorders, including skin, respiratory, and intestinal inflammatory disorders typically associated with pain and altered barrier function. These interactions may be relevant for persistence of symptoms in disorders associated with intense immune activation.
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Affiliation(s)
- Kamal Shouman
- Department of Neurology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA
| | - Eduardo E Benarroch
- Department of Neurology, Mayo Clinic, 200 First Street SW, Rochester, MN, 55905, USA.
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Masuoka T, Yamashita Y, Nakano K, Takechi K, Niimura T, Tawa M, He Q, Ishizawa K, Ishibashi T. Chronic Tear Deficiency Sensitizes Transient Receptor Potential Vanilloid 1-Mediated Responses in Corneal Sensory Nerves. Front Cell Neurosci 2020; 14:598678. [PMID: 33424555 PMCID: PMC7785588 DOI: 10.3389/fncel.2020.598678] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 12/03/2020] [Indexed: 11/13/2022] Open
Abstract
Chronic tear deficiency enhances the excitability of corneal cold-sensitive nerves that detect ocular dryness, which can lead to discomfort in patients with dry eye disease (DED). However, changes in corneal nerve excitations through the polymodal nociceptor “transient receptor potential vanilloid 1” (TRPV1) and the potential link between this receptor and symptoms of DED remain unclear. In this study, we examined the firing properties of corneal cold-sensitive nerves expressing TRPV1 and possible contributions of chronic tear deficiency to corneal nerve excitability by TRPV1 activation. The bilateral excision of lacrimal glands in guinea pigs decreased the tear volume and increased the frequency of spontaneous eyeblinks 1–4 weeks after surgery. An analysis of the firing properties of the cold-sensitive nerves was performed by single-unit recordings of corneal preparations 4 weeks after surgery in both the sham-operated and gland-excised groups. Perfusion of the TRPV1 agonist, capsaicin (1 μM), transiently increased the firing frequency in approximately 46–48% of the cold-sensitive nerves characterized by low-background activity and high threshold (LB-HT) cold thermoreceptors in both groups. Gland excision significantly decreased the latency of capsaicin-induced firing in cold-sensitive nerves; however, its magnitude was unchanged. Calcium imaging of cultured trigeminal ganglion neurons from both groups showed that intracellular calcium elevation of corneal neurons induced by a low concentration of capsaicin (0.03 μM) was significantly larger in the gland excision group, regardless of responsiveness to cold. An immunohistochemical study of the trigeminal ganglion revealed that gland excision significantly increased the proportion of corneal neurons enclosed by glial fibrillary acidic protein (GFAP)-immunopositive satellite glial cells. Topical application of the TRPV1 antagonist, A784168 (30 μM), on the ocular surface attenuated eye-blink frequency after gland excision. Furthermore, gland excision enhanced blink behavior induced by a low concentration of capsaicin (0.1 μM). These results suggest that chronic tear deficiency sensitizes the TRPV1-mediated response in the corneal LB-HT cold thermoreceptors and cold-insensitive polymodal nociceptors, which may be linked to dry eye discomfort and hyperalgesia resulting from nociceptive stimuli in aqueous-deficient dry eyes.
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Affiliation(s)
- Takayoshi Masuoka
- Department of Pharmacology, School of Medicine, Kanazawa Medical University, Uchinada, Japan
| | - Yuka Yamashita
- Department of Pharmacology, School of Medicine, Kanazawa Medical University, Uchinada, Japan
| | - Katsuya Nakano
- Department of Pharmacology, School of Medicine, Kanazawa Medical University, Uchinada, Japan
| | - Kenshi Takechi
- Department of Clinical Pharmacology and Therapeutics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan.,Department of Drug Information Analysis, College of Pharmaceutical Sciences, Matsuyama University, Matsuyama, Japan
| | - Takahiro Niimura
- Department of Clinical Pharmacology and Therapeutics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Masashi Tawa
- Department of Pharmacology, School of Medicine, Kanazawa Medical University, Uchinada, Japan
| | - Qiang He
- Department of Pharmacology, School of Medicine, Kanazawa Medical University, Uchinada, Japan
| | - Keisuke Ishizawa
- Department of Clinical Pharmacology and Therapeutics, Institute of Biomedical Sciences, Tokushima University Graduate School, Tokushima, Japan
| | - Takaharu Ishibashi
- Department of Pharmacology, School of Medicine, Kanazawa Medical University, Uchinada, Japan
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33
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Mecklenburg J, Zou Y, Wangzhou A, Garcia D, Lai Z, Tumanov AV, Dussor G, Price TJ, Akopian AN. Transcriptomic sex differences in sensory neuronal populations of mice. Sci Rep 2020; 10:15278. [PMID: 32943709 PMCID: PMC7499251 DOI: 10.1038/s41598-020-72285-z] [Citation(s) in RCA: 52] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 08/24/2020] [Indexed: 12/24/2022] Open
Abstract
Many chronic pain conditions show sex differences in their epidemiology. This could be attributed to sex-dependent differential expression of genes (DEGs) involved in nociceptive pathways, including sensory neurons. This study aimed to identify sex-dependent DEGs in estrous female versus male sensory neurons, which were prepared by using different approaches and ganglion types. RNA-seq on non-purified sensory neuronal preparations, such as whole dorsal root ganglion (DRG) and hindpaw tissues, revealed only a few sex-dependent DEGs. Sensory neuron purification increased numbers of sex-dependent DEGs. These DEG sets were substantially influenced by preparation approaches and ganglion types [DRG vs trigeminal ganglia (TG)]. Percoll-gradient enriched DRG and TG neuronal fractions produced distinct sex-dependent DEG groups. We next isolated a subset of sensory neurons by sorting DRG neurons back-labeled from paw and thigh muscle. These neurons have a unique sex-dependent DEG set, yet there is similarity in biological processes linked to these different groups of sex-dependent DEGs. Female-predominant DEGs in sensory neurons relate to inflammatory, synaptic transmission and extracellular matrix reorganization processes that could exacerbate neuro-inflammation severity, especially in TG. Male-selective DEGs were linked to oxidative phosphorylation and protein/molecule metabolism and production. Our findings catalog preparation-dependent sex differences in neuronal gene expressions in sensory ganglia.
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Affiliation(s)
- Jennifer Mecklenburg
- Department of Endodontics, University of Texas Health Science Center at San Antonio (UTHSCSA), San Antonio, TX, 78229, USA
| | - Yi Zou
- Greehey Children's Cancer Research Institute, UTHSCSA, San Antonio, TX, USA
| | - Andi Wangzhou
- Department of Neuroscience and Center for Advanced Pain Studies, University of Texas at Dallas School of Behavioral and Brain Sciences, Richardson, TX, 75080, USA
| | - Dawn Garcia
- Greehey Children's Cancer Research Institute, UTHSCSA, San Antonio, TX, USA
| | - Zhao Lai
- Greehey Children's Cancer Research Institute, UTHSCSA, San Antonio, TX, USA
- Department of Molecular Medicine, University of Texas Health Science Center at San Antonio (UTHSCSA), San Antonio, TX, 78229, USA
| | - Alexei V Tumanov
- Departments of Microbiology, Immunology & Molecular Genetics, University of Texas Health Science Center at San Antonio (UTHSCSA), San Antonio, TX, 78229, USA
| | - Gregory Dussor
- Department of Neuroscience and Center for Advanced Pain Studies, University of Texas at Dallas School of Behavioral and Brain Sciences, Richardson, TX, 75080, USA
| | - Theodore J Price
- Department of Neuroscience and Center for Advanced Pain Studies, University of Texas at Dallas School of Behavioral and Brain Sciences, Richardson, TX, 75080, USA
| | - Armen N Akopian
- Department of Endodontics, University of Texas Health Science Center at San Antonio (UTHSCSA), San Antonio, TX, 78229, USA.
- Department of Pharmacology, The School of Dentistry, University of Texas Health Science Center at San Antonio (UTHSCSA), 7703 Floyd Curl Drive, San Antonio, TX, 78229-3900, USA.
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34
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Abstract
A limited number of peripheral targets generate pain. Inflammatory mediators can sensitize these. The review addresses targets acting exclusively or predominantly on sensory neurons, mediators involved in inflammation targeting sensory neurons, and mediators involved in a more general inflammatory process, of which an analgesic effect secondary to an anti-inflammatory effect can be expected. Different approaches to address these systems are discussed, including scavenging proinflammatory mediators, applying anti-inflammatory mediators, and inhibiting proinflammatory or facilitating anti-inflammatory receptors. New approaches are contrasted to established ones; the current stage of progress is mentioned, in particular considering whether there is data from a molecular and cellular level, from animals, or from human trials, including an early stage after a market release. An overview of publication activity is presented, considering a IuPhar/BPS-curated list of targets with restriction to pain-related publications, which was also used to identify topics.
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Affiliation(s)
- Cosmin I Ciotu
- Center of Physiology and Pharmacology, Medical University of Vienna, Schwarzspanierstrasse 17, 1090, Vienna, Austria
| | - Michael J M Fischer
- Center of Physiology and Pharmacology, Medical University of Vienna, Schwarzspanierstrasse 17, 1090, Vienna, Austria.
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35
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Nikaido T, Maruyama C, Hamanaka M, Yamaguchi C, Fujimaru Y, Nakanishi Y, Asano T, Takaoka A. Ethenzamide Exerts Analgesic Effect at the Spinal Cord via Multiple Mechanisms of Action Including the 5HT 2B Receptor Blockade in the Rat Formalin Test. Biol Pharm Bull 2020; 43:839-847. [PMID: 32147623 DOI: 10.1248/bpb.b19-01050] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Ethenzamide (ETZ), an antipyretic analgesic categorized as a non-steroidal anti-inflammatory drug (NSAID), is widely used as an OTC drug in combination with other NSAIDs. However, its site of action and mechanism underlying its analgesic action have not yet been fully elucidated. In this study, we performed in vitro pharmacological assays to identify the mechanism underlying the analgesic action of ETZ, and also conducted the rat formalin test to investigate its analgesic effect and site of action. Of the 85 receptors, ion channels, transporters and enzymes tested, we found that ETZ binds to the 5-hydroxytryptamine (5HT)2B receptor in concentration-dependent manner with modest inhibitory effects on monoamine oxidase-A and transient potential vanilloid 1 channel. The 5HT2B receptor antagonist activity of ETZ was also confirmed in a cellular functional assay. Furthermore, the drug exerted no inhibitory effects on cycrooxygenase-1 and -2. In the rat formalin test, oral administration of ETZ significantly reduced the nociceptive responses of the second phase and also the number of c-Fos-expressing cells in the spinal dorsal horn, in a dose-dependent manner. Moreover, intrathecal administration of ETZ significantly reduced the nociceptive responses. These results suggest that the analgesic effect of ETZ is exerted at least in the spinal cord, and the effect would be attributed to multiple mechanisms of action including 5HT2B receptor blockade.
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Affiliation(s)
- Takato Nikaido
- Self-medication R&D laboratories, Taisho Pharmaceutical Co., Ltd
| | | | - Minako Hamanaka
- Self-medication R&D laboratories, Taisho Pharmaceutical Co., Ltd
| | | | - Yukiko Fujimaru
- Self-medication R&D laboratories, Taisho Pharmaceutical Co., Ltd
| | - Yutaka Nakanishi
- Drug Safety and Pharmacokinetics Laboratories, Taisho Pharmaceutical Co., Ltd
| | - Toshiki Asano
- Self-medication R&D laboratories, Taisho Pharmaceutical Co., Ltd
| | - Akiko Takaoka
- Self-medication R&D laboratories, Taisho Pharmaceutical Co., Ltd
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36
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Jain A, Hakim S, Woolf CJ. Unraveling the Plastic Peripheral Neuroimmune Interactome. THE JOURNAL OF IMMUNOLOGY 2020; 204:257-263. [DOI: 10.4049/jimmunol.1900818] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/16/2019] [Accepted: 09/21/2019] [Indexed: 01/16/2023]
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37
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Chen O, Donnelly CR, Ji RR. Regulation of pain by neuro-immune interactions between macrophages and nociceptor sensory neurons. Curr Opin Neurobiol 2019; 62:17-25. [PMID: 31809997 DOI: 10.1016/j.conb.2019.11.006] [Citation(s) in RCA: 131] [Impact Index Per Article: 26.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 10/29/2019] [Accepted: 11/01/2019] [Indexed: 12/23/2022]
Abstract
Inflammation is the body's protective reaction to injury and infection. Pain is a hallmark of inflammation and can be either protective or detrimental during acute or chronic phase. Macrophages play a chief role in the pathogenesis of pain and have bilateral communications with nociceptors, the specialized primary sensory neurons that sense pain. Macrophages 'talk to' nociceptors by releasing pro-inflammatory mediators (e.g. pro-inflammatory cytokines) that induce pain via direct activation of nociceptors. Macrophages also 'listen to' nociceptors, by which nociceptors secrete neuropeptides and chemokines which act on macrophages. Activation of toll-like receptors (TLRs) in nociceptors releases CCL2, activating macrophages and potentiating pathological pain. Emerging evidence also points to a pro-resolution role of macrophages in inflammation and pain. Macrophage GPR37 is activated by neuroprotectin D1, a specialized pro-resolving mediator (SPM) and resolves inflammatory pain via phagocytosis and production of IL-10 that inhibits nociceptors. Macrophage-nociceptor interactions are also mediated by microRNAs and microRNA-containing exosomes in chronic pain. Notably, extracellular microRNAs (e.g. let-7b and miR-711) can directly bind and activate nociceptors. Targeting macrophage-nociceptor interactions will help to control inflammation and pain.
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Affiliation(s)
- Ouyang Chen
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC 27710, USA; Department of Cell Biology, Duke University Medical Center, Durham, NC 27710, USA
| | - Christopher R Donnelly
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC 27710, USA
| | - Ru-Rong Ji
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC 27710, USA; Department of Cell Biology, Duke University Medical Center, Durham, NC 27710, USA; Department of Neurobiology, Duke University Medical Center, Durham, NC 27710, USA.
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38
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Abstract
Interactions between T helper cells and the complement system promote loss of sensory neurons in the eye.
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Affiliation(s)
- Mihaela Gadjeva
- Division of Infectious Disease, Department of Medicine, Brigham and Women's Hospital, Boston, United States.,Harvard Medical School, Boston, United States
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39
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Sensory Neurons of the Dorsal Root Ganglia Become Hyperexcitable in a T-Cell-Mediated MOG-EAE Model of Multiple Sclerosis. eNeuro 2019; 6:eN-NWR-0024-19. [PMID: 30957012 PMCID: PMC6449162 DOI: 10.1523/eneuro.0024-19.2019] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Revised: 02/26/2019] [Accepted: 03/11/2019] [Indexed: 01/15/2023] Open
Abstract
Multiple sclerosis (MS) is an autoimmune, demyelinating disease of the central nervous system. Patients with MS typically present with visual, motor, and sensory deficits. However, an additional complication of MS in large subset of patients is neuropathic pain. To study the underlying immune-mediated pathophysiology of pain in MS we employed the myelin oligodendrocyte glycoprotein (MOG)-induced experimental autoimmune encephalitis (EAE) model in mice. Since sensory neurons are crucial for nociceptive transduction, we investigated the effect of this disease on sensory neurons of the lumbar dorsal root ganglia (DRG). Here, we report the disease was associated with activation of the complement system and the NLRP3 inflammasome in the DRG. We further observe a transient increase in the number of complement component 5a receptor 1-positive (C5aR1+) immune cells, CD4+ T-cells, and Iba1+ macrophages in the DRG. The absence of any significant change in the levels of mRNA for myelin proteins in the DRG and the sciatic nerve suggests that demyelination in the PNS is not a trigger for the immune response in the DRG. However, we did observe an induction of activating transcription factor 3 (ATF3) at disease onset and chronic disruption of cytoskeletal proteins in the DRG demonstrating neuronal injury in the PNS in response to the disease. Electrophysiological analysis revealed the emergence of hyperexcitability in medium-to-large (≥26 µm) diameter neurons, especially at the onset of MOG-EAE signs. These results provide conclusive evidence of immune activation, neuronal injury, and peripheral sensitization in MOG-EAE, a model classically considered to be centrally mediated.
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40
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Warwick CA, Shutov LP, Shepherd AJ, Mohapatra DP, Usachev YM. Mechanisms underlying mechanical sensitization induced by complement C5a: the roles of macrophages, TRPV1, and calcitonin gene-related peptide receptors. Pain 2019; 160:702-711. [PMID: 30507785 PMCID: PMC6377341 DOI: 10.1097/j.pain.0000000000001449] [Citation(s) in RCA: 27] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
The complement system significantly contributes to the development of inflammatory and neuropathic pain, but the underlying mechanisms are poorly understood. Recently, we identified the signaling pathway responsible for thermal hypersensitivity induced by the complement system component C5a. Here, we examine the mechanisms of another important action of C5a, induction of mechanical hypersensitivity. We found that intraplantar injection of C5a produced a dose-dependent mechanical sensitization and that this effect was blocked by chemogenetic ablation of macrophages in both male and female mice. Knockout of TRPV1 or pretreatment with the TRPV1 antagonists, AMG9810 or 5'-iodoresiniferatoxin (5'-IRTX), significantly reduced C5a-induced mechanical sensitization. Notably, local administration of 5'-IRTX 90 minutes after C5a injection resulted in a slow, but complete, reversal of mechanical sensitization, indicating that TRPV1 activity was required for maintaining C5a-induced mechanical hypersensitivity. This slow reversal suggests that neurogenic inflammation and neuropeptide release may be involved. Indeed, pretreatment with a calcitonin gene-related peptide (CGRP) receptor antagonist (but not an antagonist of the neurokinin 1 receptor) prevented C5a-induced mechanical sensitization. Furthermore, intraplantar injection of CGRP produced significant mechanical sensitization in both wild-type and TRPV1 knockout mice. Taken together, these findings suggest that C5a produces mechanical sensitization by initiating macrophage-to-sensory-neuron signaling cascade that involves activation of TRPV1 and CGRP receptor as critical steps in this process.
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Affiliation(s)
- Charles A. Warwick
- Department of Pharmacology and Iowa Neuroscience Institute, University of Iowa, Iowa City, IA 52242
| | - Leonid P. Shutov
- Department of Pharmacology and Iowa Neuroscience Institute, University of Iowa, Iowa City, IA 52242
| | - Andrew J. Shepherd
- Department of Anesthesiology, Washington University Pain Center, Washington University School of Medicine, St. Louis, MO 63110
| | - Durga P. Mohapatra
- Department of Anesthesiology, Washington University Pain Center, Washington University School of Medicine, St. Louis, MO 63110
| | - Yuriy M. Usachev
- Department of Pharmacology and Iowa Neuroscience Institute, University of Iowa, Iowa City, IA 52242
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41
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Sandgren JA, Deng G, Linggonegoro DW, Scroggins SM, Perschbacher KJ, Nair AR, Nishimura TE, Zhang SY, Agbor LN, Wu J, Keen HL, Naber MC, Pearson NA, Zimmerman KA, Weiss RM, Bowdler NC, Usachev YM, Santillan DA, Potthoff MJ, Pierce GL, Gibson-Corley KN, Sigmund CD, Santillan MK, Grobe JL. Arginine vasopressin infusion is sufficient to model clinical features of preeclampsia in mice. JCI Insight 2018; 3:99403. [PMID: 30282823 DOI: 10.1172/jci.insight.99403] [Citation(s) in RCA: 49] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 08/17/2018] [Indexed: 12/29/2022] Open
Abstract
Copeptin, a marker of arginine vasopressin (AVP) secretion, is elevated throughout human pregnancies complicated by preeclampsia (PE), and AVP infusion throughout gestation is sufficient to induce the major phenotypes of PE in mice. Thus, we hypothesized a role for AVP in the pathogenesis of PE. AVP infusion into pregnant C57BL/6J mice resulted in hypertension, renal glomerular endotheliosis, intrauterine growth restriction, decreased placental growth factor (PGF), altered placental morphology, placental oxidative stress, and placental gene expression consistent with human PE. Interestingly, these changes occurred despite a lack of placental hypoxia or elevations in placental fms-like tyrosine kinase-1 (FLT1). Coinfusion of AVP receptor antagonists and time-restricted infusion of AVP uncovered a mid-gestational role for the AVPR1A receptor in the observed renal pathologies, versus mid- and late-gestational roles for the AVPR2 receptor in the blood pressure and fetal phenotypes. These findings demonstrate that AVP is sufficient to initiate phenotypes of PE in the absence of placental hypoxia, and indicate that AVP may mechanistically (independently, and possibly synergistically with hypoxia) contribute to the development of clinical signs of PE in specific subtypes of human PE. Additionally, they identify divergent and gestational time-specific signaling mechanisms that mediate the development of PE phenotypes in response to AVP.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Donna A Santillan
- Department of Obstetrics & Gynecology.,University of Iowa Hospitals & Clinics Center for Hypertension Research
| | - Matthew J Potthoff
- Department of Pharmacology.,University of Iowa Hospitals & Clinics Center for Hypertension Research.,François M. Abboud Cardiovascular Research Center.,Fraternal Order of Eagles' Diabetes Research Center, and.,Obesity Research & Education Initiative, University of Iowa, Iowa City, Iowa USA
| | - Gary L Pierce
- Department of Health & Human Physiology.,University of Iowa Hospitals & Clinics Center for Hypertension Research.,François M. Abboud Cardiovascular Research Center
| | - Katherine N Gibson-Corley
- Department of Pathology.,University of Iowa Hospitals & Clinics Center for Hypertension Research.,Fraternal Order of Eagles' Diabetes Research Center, and
| | - Curt D Sigmund
- Department of Pharmacology.,University of Iowa Hospitals & Clinics Center for Hypertension Research.,François M. Abboud Cardiovascular Research Center.,Fraternal Order of Eagles' Diabetes Research Center, and.,Obesity Research & Education Initiative, University of Iowa, Iowa City, Iowa USA
| | - Mark K Santillan
- Department of Obstetrics & Gynecology.,University of Iowa Hospitals & Clinics Center for Hypertension Research
| | - Justin L Grobe
- Department of Pharmacology.,University of Iowa Hospitals & Clinics Center for Hypertension Research.,François M. Abboud Cardiovascular Research Center.,Fraternal Order of Eagles' Diabetes Research Center, and.,Obesity Research & Education Initiative, University of Iowa, Iowa City, Iowa USA
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42
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Li WT, Luo QQ, Wang B, Chen X, Yan XJ, Qiu HY, Chen SL. Bile acids induce visceral hypersensitivity via mucosal mast cell-to-nociceptor signaling that involves the farnesoid X receptor/nerve growth factor/transient receptor potential vanilloid 1 axis. FASEB J 2018; 33:2435-2450. [PMID: 30260705 DOI: 10.1096/fj.201800935rr] [Citation(s) in RCA: 39] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Increased colonic bile acid (BA) exposure, frequent in diarrhea-predominant irritable bowel syndrome (IBS-D), can affect gut function. Nerve growth factor (NGF) is implicated in the development of visceral hypersensitivity (VH). In this study, we tested the hypothesis that BAs cause VH via mucosal mast cell (MMC)-to-nociceptor signaling, which involves the farnesoid X receptor (FXR)/NGF/transient receptor potential vanilloid (TRPV)1 axis. BAs were intracolonically administered to rats for 15 d. Visceral sensitivity to colorectal distention and colonic NGF expression were examined. BAs caused VH, an effect that involved MMC-derived NGF and was accompanied by enhanced TRPV1 expression in the dorsal root ganglia. Anti-NGF treatment and TRPV1 antagonism inhibited BA-induced VH. BAs induced NGF mRNA and protein expression and release in cultured mast cells. Colonic supernatants from patients with IBS-D with elevated colonic BA content transcriptionally induced NGF expression. In FXR-/- mice, visceral sensitivity and colonic NGF expression were unaltered after BA treatment. Pharmacological antagonism and FXR silencing suppressed BA-induced NGF expression and release in mast cells. Mitogen-activated protein kinase kinase (MKK) 3/6/p38 MAPK/NF-κB signaling was mechanistically responsible for FXR-mediated NGF expression and secretion. The findings show an MMC-dependent and FXR-mediated pronociceptive effect of BAs and identify the BA/FXR/NGF/TRPV1 axis as a key player in MMC-to-neuron communication during pain processing in IBS.-Li, W.-T., Luo, Q.-Q., Wang, B., Chen, X., Yan, X.-J., Qiu, H.-Y., Chen, S.-L. Bile acids induce visceral hypersensitivity via mucosal mast cell-to-nociceptor signaling that involves the farnesoid X receptor/nerve growth factor/transient receptor potential vanilloid 1 axis.
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Affiliation(s)
- Wen-Ting Li
- Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Qing-Qing Luo
- Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Bo Wang
- Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Xin Chen
- Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Xiu-Juan Yan
- Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Hong-Yi Qiu
- Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
| | - Sheng-Liang Chen
- Division of Gastroenterology and Hepatology, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai Institute of Digestive Disease, Shanghai, China
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43
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Angiotensin II Triggers Peripheral Macrophage-to-Sensory Neuron Redox Crosstalk to Elicit Pain. J Neurosci 2018; 38:7032-7057. [PMID: 29976627 DOI: 10.1523/jneurosci.3542-17.2018] [Citation(s) in RCA: 81] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2017] [Revised: 05/03/2018] [Accepted: 05/07/2018] [Indexed: 12/20/2022] Open
Abstract
Injury, inflammation, and nerve damage initiate a wide variety of cellular and molecular processes that culminate in hyperexcitation of sensory nerves, which underlies chronic inflammatory and neuropathic pain. Using behavioral readouts of pain hypersensitivity induced by angiotensin II (Ang II) injection into mouse hindpaws, our study shows that activation of the type 2 Ang II receptor (AT2R) and the cell-damage-sensing ion channel TRPA1 are required for peripheral mechanical pain sensitization induced by Ang II in male and female mice. However, we show that AT2R is not expressed in mouse and human dorsal root ganglia (DRG) sensory neurons. Instead, expression/activation of AT2R on peripheral/skin macrophages (MΦs) constitutes a critical trigger of mouse and human DRG sensory neuron excitation. Ang II-induced peripheral mechanical pain hypersensitivity can be attenuated by chemogenetic depletion of peripheral MΦs. Furthermore, AT2R activation in MΦs triggers production of reactive oxygen/nitrogen species, which trans-activate TRPA1 on mouse and human DRG sensory neurons via cysteine modification of the channel. Our study thus identifies a translatable immune cell-to-sensory neuron signaling crosstalk underlying peripheral nociceptor sensitization. This form of cell-to-cell signaling represents a critical peripheral mechanism for chronic pain and thus identifies multiple druggable analgesic targets.SIGNIFICANCE STATEMENT Pain is a widespread health problem that is undermanaged by currently available analgesics. Findings from a recent clinical trial on a type II angiotensin II receptor (AT2R) antagonist showed effective analgesia for neuropathic pain. AT2R antagonists have been shown to reduce neuropathy-, inflammation- and bone cancer-associated pain in rodents. We report that activation of AT2R in macrophages (MΦs) that infiltrate the site of injury, but not in sensory neurons, triggers an intercellular redox communication with sensory neurons via activation of the cell damage/pain-sensing ion channel TRPA1. This MΦ-to-sensory neuron crosstalk results in peripheral pain sensitization. Our findings provide an evidence-based mechanism underlying the analgesic action of AT2R antagonists, which could accelerate the development of efficacious non-opioid analgesic drugs for multiple pain conditions.
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44
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Tao J, Jiang F, Liu C, Liu Z, Zhu Y, Xu J, Ge Y, Xu K, Yin P. Modulatory effects of bufalin, an active ingredient from toad venom on voltage-gated sodium channels. Mol Biol Rep 2018; 45:721-740. [PMID: 29931533 DOI: 10.1007/s11033-018-4213-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2018] [Accepted: 06/11/2018] [Indexed: 12/22/2022]
Abstract
Chan-su (toad venom) has been used as an analgesic agent in China from ancient to modern times. Bufalin, a non-peptide toxin extracted from toad venom, is considered as one of the analgesic components. The molecular mechanism underlying the anti-nociceptive effects of bufalin remains unclear so far. In this study, we investigated the pharmacological effects of bufalin on pain-related ion channels as well as animal models through patch clamping, calcium imaging and animal behavior observation. Using the whole-cell recording, bufalin caused remarkable suppressive effect on the peak currents of Nav channels (voltage gated sodium channels, VGSCs) of dorsal root ganglion neuroblastomas (ND7-23 cell) in a dose-dependent manner. Bufalin facilitated the voltage-dependent activation and induced a negative shift on the fast inactivation of VGSCs. The recovery kinetics of VGSCs were significantly slowed and the recovery proportion were reduced after administering bufalin. However, bufalin prompted no significant effect not only on Kv4.2, Kv4.3 and BK channels heterologously expressed in HEK293T cells, but also on the capsaicin and allyl isothiocyanate induced Ca2+ influx. What's more, bufalin could observably relieve formalin-induced spontaneous flinching and licking response as well as carrageenan-induced thermal and mechanical hyperalgesia in dose-dependent manner in agreement with the results of in vitro experiments. The present results imply that the remarkable anti-nociceptive effects produced by bufalin are probably ascribed to its specific regulation on Nav channels. Bufalin inhibits the Nav channels in a dose-dependent manner, which will provide references for the optimal dose selection of analgesia drugs.
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Affiliation(s)
- Jie Tao
- Department of Central Laboratory and Neurosurgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Feng Jiang
- Xinhua Hospital (Chongming) Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai Chongming Xinhua Translational Medical Institute for Cancer Pain, Shanghai, China
| | - Cheng Liu
- Department of Central Laboratory and Neurosurgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhirui Liu
- Department of Pharmacology, Institute of Medical Science, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yudan Zhu
- Department of Central Laboratory and Neurosurgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jian Xu
- Department of Central Laboratory and Neurosurgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Yiqin Ge
- Department of Central Laboratory and Neurosurgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Kan Xu
- Department of Central Laboratory and Neurosurgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
| | - Peihao Yin
- Department of Central Laboratory and Neurosurgery, Putuo Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China.
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Raoof R, Willemen HLDM, Eijkelkamp N. Divergent roles of immune cells and their mediators in pain. Rheumatology (Oxford) 2018; 57:429-440. [PMID: 28968842 PMCID: PMC5850827 DOI: 10.1093/rheumatology/kex308] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2017] [Indexed: 12/20/2022] Open
Abstract
Chronic pain is a major debilitating condition that is difficult to treat. Although chronic pain may appear to be a disorder of the nervous system, crucial roles for immune cells and their mediators have been identified as important contributors in various types of pain. This review focuses on how the immune system regulates pain and discusses the emerging roles of immune cells in the initiation or maintenance of chronic pain. We highlight which immune cells infiltrate damaged nerves, the dorsal root ganglia, spinal cord and tissues around free nerve endings and discuss through which mechanisms they control pain. Finally we discuss emerging roles of the immune system in resolving pain and how the immune system contributes to the transition from acute to chronic pain. We propose that targeting some of these immune processes may provide novel therapeutic opportunities for the treatment of chronic pain.
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Affiliation(s)
- Ramin Raoof
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands
| | - Hanneke L D M Willemen
- Laboratory of Neuroimmunology and Developmental Origins of Disease (NIDOD), University Medical Center Utrecht, Utrecht, The Netherlands
| | - Niels Eijkelkamp
- Laboratory of Translational Immunology, University Medical Center Utrecht, Utrecht, The Netherlands.,Laboratory of Neuroimmunology and Developmental Origins of Disease (NIDOD), University Medical Center Utrecht, Utrecht, The Netherlands
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Morgan M, Deuis JR, Woodruff TM, Lewis RJ, Vetter I. Role of complement anaphylatoxin receptors in a mouse model of acute burn-induced pain. Mol Immunol 2018; 94:68-74. [DOI: 10.1016/j.molimm.2017.12.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2017] [Revised: 11/21/2017] [Accepted: 12/18/2017] [Indexed: 01/06/2023]
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Pharmacological validation of voluntary gait and mechanical sensitivity assays associated with inflammatory and neuropathic pain in mice. Neuropharmacology 2017; 130:18-29. [PMID: 29191755 DOI: 10.1016/j.neuropharm.2017.11.036] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 11/09/2017] [Accepted: 11/22/2017] [Indexed: 01/01/2023]
Abstract
The urgent need for more effective analgesic treatment options has prompted a re-evaluation of the behavioral tests used to assess pain in pre-clinical research, with an emphasis on inclusion of more voluntary, un-evoked behavioral assessments of pain. In order to validate voluntary gait analysis and a voluntary mechanical conflict-avoidance assay, we tested mouse models of neuropathy (spared nerve injury) and inflammation (complete Freund's adjuvant) alongside reflexive measures of mechanical and thermal hypersensitivity. To establish whether the observed changes in behavioral responses were pain-related, known analgesics (buprenorphine, gabapentin, carprofen) were also administered. Spared nerve injury persistently altered several gait indices, whereas complete Freund's adjuvant caused only transient changes. Furthermore, known analgesics could not reverse these gait changes, despite demonstrating their previously established efficacy in reflexive measures of mechanical and thermal hypersensitivity. In contrast, the mechanical conflict-avoidance assay demonstrated aversion in mice with neuropathy and inflammation-induced hypersensitivity, which could both be reversed by analgesics. We conclude that voluntary gait changes in rodent neuropathic and inflammatory pain models are not necessarily indicative of pain-related adaptations. On the other hand, mechanical conflict-avoidance represents a valid operant assay for quantifying pain-related behaviors in mice that can be reversed by known analgesics.
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Huang J, Burston JJ, Li L, Ashraf S, Mapp PI, Bennett AJ, Ravipati S, Pousinis P, Barrett DA, Scammell BE, Chapman V. Targeting the D Series Resolvin Receptor System for the Treatment of Osteoarthritis Pain. Arthritis Rheumatol 2017; 69:996-1008. [PMID: 27860453 PMCID: PMC5763389 DOI: 10.1002/art.40001] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Accepted: 11/10/2016] [Indexed: 12/26/2022]
Abstract
Objective Pain is a major symptom of osteoarthritis (OA); currently available analgesics either do not provide adequate pain relief or are associated with serious side effects. The aim of this study was to investigate the therapeutic potential of targeting the resolvin receptor system to modify OA pain and pathology. Methods Gene expression of 2 resolvin receptors (ALX and ChemR23) was quantified in synovium and medial tibial plateau specimens obtained from patients with OA at the time of joint replacement surgery. Two models of OA joint pain were used for the mechanistic studies. Gene expression in the joint and central nervous system was quantified. The effects of exogenous administration of the D series resolvin precursor 17(R)‐hydroxy‐docosahexaenoic acid (17[R]‐HDoHE) on pain behavior, joint pathology, spinal microglia, and astroglyosis were quantified. Plasma levels of relevant lipids, resolvin D2, 17(R)‐HDoHE, and arachidonic acid, were determined in rats, using liquid chromatography tandem mass spectrometry. Results There was a positive correlation between resolvin receptor and interleukin‐6 (IL‐6) expression in human OA synovial and medial tibial plateau tissue. In rats, synovial expression of ALX was positively correlated with expression of IL‐1β, tumor necrosis factor, and cyclooxygenase 2. Treatment with 17(R)‐HDoHE reversed established pain behavior (but not joint pathology) in 2 models of OA pain. This was associated with a significant elevation in the plasma levels of resolvin D2 and a significant reduction in astrogliosis in the spinal cord in the monosodium iodoacetate–induced OA rat model. Conclusion Our preclinical data demonstrate the robust analgesic effects of activation of the D series resolvin pathways in 2 different animal models of OA. Our data support a predominant central mechanism of action in clinically relevant models of OA pain.
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Affiliation(s)
| | | | - Li Li
- University of Nottingham, Nottingham, UK
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Pace MC, Passavanti MB, De Nardis L, Bosco F, Sansone P, Pota V, Barbarisi M, Palagiano A, Iannotti FA, Panza E, Aurilio C. Nociceptor plasticity: A closer look. J Cell Physiol 2017; 233:2824-2838. [PMID: 28488779 DOI: 10.1002/jcp.25993] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2016] [Revised: 04/20/2017] [Accepted: 05/09/2017] [Indexed: 12/17/2022]
Abstract
Nociceptors are receptors specifically involved in detecting a tissue damage and transducing it in an electrical signal. Nociceptor activation provoked by any kind of acute lesion is related to the release of several mediators of inflammation, within the framework of a process defined as "peripheral sensitization." This results in an exaggerated response to the painful stimulus, clinically defined as "primary hyperalgesia." The concept of "neuroplasticity" may explain the adaptive mechanisms carried out by the Nervous System in relation to a "harmful" damage; also, neuroplasticity mechanisms are also fundamental for rehabilitative intervention protocols. Here we review several studies that addressed the role of different receptors and ionic channels discovered on nociceptor surface and their role in pain perception. The changes in expression, distribution, and functioning of receptors and ionic channels are thought to be a part of the neuroplasticity property, through which the Nervous System constantly adapts to external stimuli. Moreover, some of the reviewed mediators are also been associated to "central sensitization," a process that results in pain chronicization when the painful stimulation is particularly prolonged or intense, and lastly leads to the memorization of the uncomfortable painful perception.
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Affiliation(s)
- Maria Caterina Pace
- Department of Anaesthesiological, Surgical and Emergency Sciences, Second University of Naples, Naples, Italy
| | - Maria Beatrice Passavanti
- Department of Anaesthesiological, Surgical and Emergency Sciences, Second University of Naples, Naples, Italy
| | - Lorenzo De Nardis
- Department of Anaesthesiological, Surgical and Emergency Sciences, Second University of Naples, Naples, Italy
| | - Fabio Bosco
- Department of Anaesthesiological, Surgical and Emergency Sciences, Second University of Naples, Naples, Italy
| | - Pasquale Sansone
- Department of Anaesthesiological, Surgical and Emergency Sciences, Second University of Naples, Naples, Italy
| | - Vincenzo Pota
- Department of Anaesthesiological, Surgical and Emergency Sciences, Second University of Naples, Naples, Italy
| | - Manlio Barbarisi
- Laboratory of Applied Biotechnology, Department of Anaesthesiological, Surgical and Emergency Sciences, Second University of Naples, Naples, Italy
| | - Antonio Palagiano
- Department of Women, Child and General and Specialized Surgery, Second University of Naples, Naples, Italy
| | - Fabio Arturo Iannotti
- Institute of Biomolecular Chemistry (ICB) Research National Council (CNR), Pozzuoli, Italy
| | - Elisabetta Panza
- Department of Pharmacy, University of Naples Federico II, Naples, Italy
| | - Caterina Aurilio
- Department of Anaesthesiological, Surgical and Emergency Sciences, Second University of Naples, Naples, Italy
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Abstract
Macrophages are the primary phagocytes of the body and found in every tissue; often with tissue specific subtypes, e.g., microglia or Kupffer Cells. These cells are essential players in host defense, immune regulation, tissue repair, and homeostasis. Consistent with their diverse functions, macrophages display a remarkable level of plasticity and undergo rapid changes in morphology and activation state in response to environmental cues. Polarization of macrophages towards pro-inflammatory (classically activated or M1) or anti-inflammatory (alternatively activated or M2) activation states is highly dependent on their environment. These activation states result in either tissue remodeling and repair (M2) or enhanced inflammation (M1). As macrophages are dependent upon environmental cues for changes in their activation state, primary cell culture offers the ability to study macrophages under highly controlled conditions in which activation states are easily manipulated with specific growth factors, cytokines, or other signaling molecules and are readily examined through powerful tools such as immunostaining, ELISA, and Ca2+ imaging. Additionally, this approach allows the researcher to manipulate gene expression in these cells to better understanding the underlying principles and mechanisms of macrophage biology. Unfortunately, macrophages are resistant to most forms of transfection and researchers have to use either macrophages isolated from transgenic mice or viral delivery of transgenes which slows the study of these diverse cells. In this chapter we describe methods for isolating, culturing, transfecting, and immunostaining primary macrophages. Particular emphasis is placed on culture conditions and transfection protocol as we found these significantly impacted the success of this protocol. Pairing these methods with functional Ca2+ imaging enables investigation of the effects of silencing or overexpressing specific proteins on the functional properties of primary macrophages.
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