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Bitar L, Puig B, Oertner TG, Dénes Á, Magnus T. Changes in Neuroimmunological Synapses During Cerebral Ischemia. Transl Stroke Res 2024:10.1007/s12975-024-01286-1. [PMID: 39103660 DOI: 10.1007/s12975-024-01286-1] [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: 03/28/2024] [Revised: 06/24/2024] [Accepted: 07/25/2024] [Indexed: 08/07/2024]
Abstract
The direct interplay between the immune and nervous systems is now well established. Within the brain, these interactions take place between neurons and resident glial cells, i.e., microglia and astrocytes, or infiltrating immune cells, influenced by systemic factors. A special form of physical cell-cell interactions is the so-called "neuroimmunological (NI) synapse." There is compelling evidence that the same signaling pathways that regulate inflammatory responses to injury or ischemia also play potent roles in brain development, plasticity, and function. Proper synaptic wiring is as important during development as it is during disease states, as it is necessary for activity-dependent refinement of neuronal circuits. Since the process of forming synaptic connections in the brain is highly dynamic, with constant changes in strength and connectivity, the immune component is perfectly suited for the regulatory task as it is in constant turnover. Many cellular and molecular players in this interaction remain to be uncovered, especially in pathological states. In this review, we discuss and propose possible communication hubs between components of the adaptive and innate immune systems and the synaptic element in ischemic stroke pathology.
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Affiliation(s)
- Lynn Bitar
- Neurology Department, Experimental Research in Stroke and Inflammation (ERSI) Group, University Medical Center Hamburg-Eppendorf (UKE), Martinistraße, 52, Hamburg, 20246, Germany
| | - Berta Puig
- Neurology Department, Experimental Research in Stroke and Inflammation (ERSI) Group, University Medical Center Hamburg-Eppendorf (UKE), Martinistraße, 52, Hamburg, 20246, Germany
| | - Thomas G Oertner
- Institute for Synaptic Physiology, Center for Molecular Neurobiology (ZMNH), University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Ádám Dénes
- "Momentum" Laboratory of Neuroimmunology, Institute of Experimental Medicine, Budapest, Hungary
| | - Tim Magnus
- Neurology Department, Experimental Research in Stroke and Inflammation (ERSI) Group, University Medical Center Hamburg-Eppendorf (UKE), Martinistraße, 52, Hamburg, 20246, Germany.
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Amoriello R, Memo C, Ballerini L, Ballerini C. The brain cytokine orchestra in multiple sclerosis: from neuroinflammation to synaptopathology. Mol Brain 2024; 17:4. [PMID: 38263055 PMCID: PMC10807071 DOI: 10.1186/s13041-024-01077-7] [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: 11/21/2023] [Accepted: 01/18/2024] [Indexed: 01/25/2024] Open
Abstract
The central nervous system (CNS) is finely protected by the blood-brain barrier (BBB). Immune soluble factors such as cytokines (CKs) are normally produced in the CNS, contributing to physiological immunosurveillance and homeostatic synaptic scaling. CKs are peptide, pleiotropic molecules involved in a broad range of cellular functions, with a pivotal role in resolving the inflammation and promoting tissue healing. However, pro-inflammatory CKs can exert a detrimental effect in pathological conditions, spreading the damage. In the inflamed CNS, CKs recruit immune cells, stimulate the local production of other inflammatory mediators, and promote synaptic dysfunction. Our understanding of neuroinflammation in humans owes much to the study of multiple sclerosis (MS), the most common autoimmune and demyelinating disease, in which autoreactive T cells migrate from the periphery to the CNS after the encounter with a still unknown antigen. CNS-infiltrating T cells produce pro-inflammatory CKs that aggravate local demyelination and neurodegeneration. This review aims to recapitulate the state of the art about CKs role in the healthy and inflamed CNS, with focus on recent advances bridging the study of adaptive immune system and neurophysiology.
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Affiliation(s)
- Roberta Amoriello
- International School for Advanced Studies (SISSA/ISAS), 34136, Trieste, Italy.
- Dipartimento di Medicina Sperimentale e Clinica, University of Florence, 50139, Florence, Italy.
| | - Christian Memo
- Dipartimento di Medicina Sperimentale e Clinica, University of Florence, 50139, Florence, Italy
| | - Laura Ballerini
- Dipartimento di Medicina Sperimentale e Clinica, University of Florence, 50139, Florence, Italy
| | - Clara Ballerini
- International School for Advanced Studies (SISSA/ISAS), 34136, Trieste, Italy.
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3
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Abu YF, Singh S, Tao J, Chupikova I, Singh P, Meng J, Roy S. Opioid-induced dysbiosis of maternal gut microbiota during gestation alters offspring gut microbiota and pain sensitivity. Gut Microbes 2024; 16:2292224. [PMID: 38108125 PMCID: PMC10730209 DOI: 10.1080/19490976.2023.2292224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/27/2023] [Accepted: 12/04/2023] [Indexed: 12/19/2023] Open
Abstract
There has been a rapid increase in neonates born with a history of prenatal opioid exposure. How prenatal opioid exposure affects pain sensitivity in offspring is of interest, as this may perpetuate the opioid epidemic. While few studies have reported hypersensitivity to thermal pain, potential mechanisms have not been described. This study posits that alterations in the gut microbiome may underly hypersensitivity to pain in prenatally methadone-exposed 3-week-old male offspring, which were generated using a mouse model of prenatal methadone exposure. Fecal samples collected from dams and their offspring were subjected to 16s rRNA sequencing. Thermal and mechanical pain were assessed using the tail flick and Von Frey assays. Transcriptomic changes in whole brain samples of opioid or saline-exposed offspring were investigated using RNA-sequencing, and midbrain sections from these animals were subjected to qPCR profiling of genes related to neuropathic and inflammatory pain pathways. Prenatal methadone exposure increased sensitivity to thermal and mechanical pain and elevated serum levels of IL-17a. Taxonomical analysis revealed that prenatal methadone exposure resulted in significant alterations in fecal gut microbiota composition, including depletion of Lactobacillus, Bifidobacterium, and Lachnospiracea sp and increased relative abundance of Akkermansia, Clostridium sensu stricto 1, and Lachnoclostridium. Supplementation of the probiotic VSL#3 in dams rescued hypersensitivity to thermal and mechanical pain in prenatally methadone-exposed offspring. Similarly, cross-fostering prenatally methadone-exposed offspring to control dams also attenuated hypersensitivity to thermal pain in opioid-exposed offspring. Modulation of the maternal and neonatal gut microbiome with probiotics resulted in transcriptional changes in genes related to neuropathic and immune-related signaling in whole brain and midbrain samples of prenatally methadone-exposed offspring. Together, our work provides compelling evidence of the gut-brain-axis in mediating pain sensitivity in prenatally opioid-exposed offspring.
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Affiliation(s)
- Yaa F. Abu
- Department of Microbiology and Immunology, University of Miami, Miami, FL, USA
| | - Salma Singh
- Department of Surgery, University of Miami, Miami, FL, USA
| | - Junyi Tao
- Department of Surgery, University of Miami, Miami, FL, USA
| | | | - Praveen Singh
- Department of Surgery, University of Miami, Miami, FL, USA
| | - Jingjing Meng
- Department of Surgery, University of Miami, Miami, FL, USA
| | - Sabita Roy
- Department of Surgery, University of Miami, Miami, FL, USA
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4
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Gao SJ, Liu L, Li DY, Liu DQ, Zhang LQ, Wu JY, Song FH, Zhou YQ, Mei W. Interleukin-17: A Putative Novel Pharmacological Target for Pathological Pain. Curr Neuropharmacol 2024; 22:204-216. [PMID: 37581321 PMCID: PMC10788884 DOI: 10.2174/1570159x21666230811142713] [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: 11/19/2022] [Revised: 01/19/2023] [Accepted: 01/31/2023] [Indexed: 08/16/2023] Open
Abstract
Pathological pain imposes a huge burden on the economy and the lives of patients. At present, drugs used for the treatment of pathological pain have only modest efficacy and are also plagued by adverse effects and risk for misuse and abuse. Therefore, understanding the mechanisms of pathological pain is essential for the development of novel analgesics. Several lines of evidence indicate that interleukin-17 (IL-17) is upregulated in rodent models of pathological pain in the periphery and central nervous system. Besides, the administration of IL-17 antibody alleviated pathological pain. Moreover, IL-17 administration led to mechanical allodynia which was alleviated by the IL-17 antibody. In this review, we summarized and discussed the therapeutic potential of targeting IL-17 for pathological pain. The upregulation of IL-17 promoted the development of pathological pain by promoting neuroinflammation, enhancing the excitability of dorsal root ganglion neurons, and promoting the communication of glial cells and neurons in the spinal cord. In general, the existing research shows that IL-17 is an attractive therapeutic target for pathologic pain, but the underlying mechanisms still need to be investigated.
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Affiliation(s)
- Shao-Jie Gao
- Department of Anesthesiology, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Lin Liu
- Department of Anesthesiology, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Dan-Yang Li
- Department of Anesthesiology, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Dai-Qiang Liu
- Department of Anesthesiology, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Long-Qing Zhang
- Department of Anesthesiology, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Jia-Yi Wu
- Department of Anesthesiology, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Fan-He Song
- Department of Anesthesiology, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Ya-Qun Zhou
- Department of Anesthesiology, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
| | - Wei Mei
- Department of Anesthesiology, Hubei Key Laboratory of Geriatric Anesthesia and Perioperative Brain Health, and Wuhan Clinical Research Center for Geriatric Anesthesia, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430030, China
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5
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Zhao J, Huh Y, Bortsov A, Diatchenko L, Ji RR. Immunotherapies in chronic pain through modulation of neuroimmune interactions. Pharmacol Ther 2023; 248:108476. [PMID: 37307899 PMCID: PMC10527194 DOI: 10.1016/j.pharmthera.2023.108476] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/18/2023] [Accepted: 06/06/2023] [Indexed: 06/14/2023]
Abstract
It is generally believed that immune activation can elicit pain through production of inflammatory mediators that can activate nociceptive sensory neurons. Emerging evidence suggests that immune activation may also contribute to the resolution of pain by producing distinct pro-resolution/anti-inflammatory mediators. Recent research into the connection between the immune and nervous systems has opened new avenues for immunotherapy in pain management. This review provides an overview of the most utilized forms of immunotherapies (e.g., biologics) and highlight their potential for immune and neuronal modulation in chronic pain. Specifically, we discuss pain-related immunotherapy mechanisms that target inflammatory cytokine pathways, the PD-L1/PD-1 pathway, and the cGAS/STING pathway. This review also highlights cell-based immunotherapies targeting macrophages, T cells, neutrophils and mesenchymal stromal cells for chronic pain management.
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Affiliation(s)
- Junli Zhao
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC 27710, USA
| | - Yul Huh
- 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
| | - Andrey Bortsov
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC 27710, USA
| | - Luda Diatchenko
- Alan Edwards Centre for Research on Pain, McGill University, Montréal, QC H3A 0G4, Canada; Faculty of Dental Medicine and Oral Health Sciences, Department of Anesthesia, Faculty of Medicine and Health Sciences, McGill University, Montréal, QC H3A 0G4, Canada
| | - 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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Sasamoto N, Ngo L, Vitonis AF, Dillon ST, Sieberg CB, Missmer SA, Libermann TA, Terry KL. Plasma proteomic profiles of pain subtypes in adolescents and young adults with endometriosis. Hum Reprod 2023; 38:1509-1519. [PMID: 37196326 PMCID: PMC10391309 DOI: 10.1093/humrep/dead099] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2023] [Revised: 04/12/2023] [Indexed: 05/19/2023] Open
Abstract
STUDY QUESTION What are the similarities and differences in the systemic proteomic profiles by endometriosis-associated pain subtypes among adolescents and young adults with endometriosis? SUMMARY ANSWER Endometriosis-associated pain subtypes exhibited distinct plasma proteomic profiles. WHAT IS KNOWN ALREADY Endometriosis patients, especially those diagnosed in adolescents and young adults, are often plagued by various pain symptoms. However, it is not clear what biological processes underlie this heterogeneity. STUDY DESIGN, SIZE, DURATION We conducted a cross-sectional analysis using data and plasma samples from 142 adolescent or young adult participants of the Women's Health Study: From Adolescence to Adulthood cohort with laparoscopically confirmed endometriosis. PARTICIPANTS/MATERIALS, SETTING, METHODS We measured 1305 plasma protein levels by SomaScan. We classified self-reported endometriosis-associated pain into subtypes of dysmenorrhea, acyclic pelvic pain, life impacting pelvic pain, bladder pain, bowel pain, and widespread pain phenotype. We used logistic regression to calculate the odds ratios and 95% confidence intervals for differentially expressed proteins, adjusting for age, BMI, fasting status, and hormone use at blood draw. Ingenuity Pathway Analysis identified enriched biological pathways. MAIN RESULTS AND THE ROLE OF CHANCE Our study population consisted mainly of adolescents and young adults (mean age at blood draw = 18 years), with nearly all (97%) scored as rASRM stage I/II at laparoscopic diagnosis of endometriosis, which is a common clinical presentation of endometriosis diagnosed at a younger age. Pain subtypes exhibited distinct plasma proteomic profiles. Multiple cell movement pathways were downregulated in cases with severe dysmenorrhea and life impacting pelvic pain compared to those without (P < 7.5×10-15). Endometriosis cases with acyclic pelvic pain had upregulation of immune cell adhesion pathways (P < 9.0×10-9), while those with bladder pain had upregulation of immune cell migration (P < 3.7×10-8) and those with bowel pain had downregulation (P < 6.5×10-7) of the immune cell migration pathways compared to those without. Having a wide-spread pain phenotype involved downregulation of multiple immune pathways (P < 8.0×10-10). LIMITATIONS, REASONS FOR CAUTION Our study was limited by the lack of an independent validation cohort. We were also only able to explore any presence of a pain subtype and could not evaluate multiple combinations by pain subtypes. Further mechanistic studies are warranted to elucidate the differences in pathophysiology by endometriosis-pain subtype. WIDER IMPLICATIONS OF THE FINDINGS The observed variation in plasma protein profiles by pain subtypes suggests different underlying molecular mechanisms, highlighting the need for potential consideration of pain subtypes for effectively treating endometriosis patients presenting with various pain symptoms. STUDY FUNDING/COMPETING INTEREST(S) This study was supported by the Department of Defense W81XWH1910318 and the 2017 Boston Center for Endometriosis Trainee Award. Financial support for establishment of and data collection within the A2A cohort were provided by the J. Willard and Alice S. Marriott Foundation. N.S., A.F.V., S.A.M., and K.L.T. have received funding from the Marriott Family Foundation. C.B.S. is funded by an R35 MIRA Award from NIGMS (5R35GM142676). S.A.M. and K.L.T. are supported by NICHD R01HD094842. S.A.M. reports serving as an advisory board member for AbbVie and Roche, Field Chief Editor for Frontiers in Reproductive Health, personal fees from Abbott for roundtable participation; none of these are related to this study. Other authors report no conflict of interest. TRIAL REGISTRATION NUMBER N/A.
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Affiliation(s)
- Naoko Sasamoto
- Department of Obstetrics and Gynecology, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
- Boston Center for Endometriosis, Boston Children’s Hospital and Brigham and Women’s Hospital, Boston, MA, USA
| | - Long Ngo
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
- Department of Biostatistics, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Allison F Vitonis
- Department of Obstetrics and Gynecology, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
- Boston Center for Endometriosis, Boston Children’s Hospital and Brigham and Women’s Hospital, Boston, MA, USA
| | - Simon T Dillon
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
- Genomics, Proteomics, Bioinformatics and Systems Biology Center, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Christine B Sieberg
- Biobehavioral Pain Innovations Lab, Department of Psychiatry & Behavioral Sciences, Boston Children’s Hospital, Boston, MA, USA
- Pain & Affective Neuroscience Center, Department of Anesthesiology, Critical Care, & Pain Medicine, Boston Children’s Hospital, Boston, MA, USA
- Department of Psychiatry, Harvard Medical School, Boston, MA, USA
| | - Stacey A Missmer
- Boston Center for Endometriosis, Boston Children’s Hospital and Brigham and Women’s Hospital, Boston, MA, USA
- Department of Obstetrics, Gynecology, and Reproductive Biology, Michigan State University, Grand Rapids, MI, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
| | - Towia A Libermann
- Department of Medicine, Beth Israel Deaconess Medical Center and Harvard Medical School, Boston, MA, USA
- Genomics, Proteomics, Bioinformatics and Systems Biology Center, Beth Israel Deaconess Medical Center, Boston, MA, USA
| | - Kathryn L Terry
- Department of Obstetrics and Gynecology, Brigham and Women’s Hospital and Harvard Medical School, Boston, MA, USA
- Boston Center for Endometriosis, Boston Children’s Hospital and Brigham and Women’s Hospital, Boston, MA, USA
- Department of Epidemiology, Harvard T.H. Chan School of Public Health, Boston, MA, USA
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Alotaibi G, Khan A, Ronan PJ, Lutfy K, Rahman S. Glial Glutamate Transporter Modulation Prevents Development of Complete Freund's Adjuvant-Induced Hyperalgesia and Allodynia in Mice. Brain Sci 2023; 13:807. [PMID: 37239279 PMCID: PMC10216248 DOI: 10.3390/brainsci13050807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 05/12/2023] [Accepted: 05/13/2023] [Indexed: 05/28/2023] Open
Abstract
Glial glutamate transporter (GLT-1) modulation in the hippocampus and anterior cingulate cortex (ACC) is critically involved in nociceptive pain. The objective of the study was to investigate the effects of 3-[[(2-methylphenyl) methyl] thio]-6-(2-pyridinyl)-pyridazine (LDN-212320), a GLT-1 activator, against microglial activation induced by complete Freund's adjuvant (CFA) in a mouse model of inflammatory pain. Furthermore, the effects of LDN-212320 on the protein expression of glial markers, such as ionized calcium-binding adaptor molecule 1 (Iba1), cluster of differentiation molecule 11b (CD11b), mitogen-activated protein kinases (p38), astroglial GLT-1, and connexin 43 (CX43), were measured in the hippocampus and ACC following CFA injection using the Western blot analysis and immunofluorescence assay. The effects of LDN-212320 on the pro-inflammatory cytokine interleukin-1β (IL-1β) in the hippocampus and ACC were also assessed using an enzyme-linked immunosorbent assay. Pretreatment with LDN-212320 (20 mg/kg) significantly reduced the CFA-induced tactile allodynia and thermal hyperalgesia. The anti-hyperalgesic and anti-allodynic effects of LDN-212320 were reversed by the GLT-1 antagonist DHK (10 mg/kg). Pretreatment with LDN-212320 significantly reduced CFA-induced microglial Iba1, CD11b, and p38 expression in the hippocampus and ACC. LDN-212320 markedly modulated astroglial GLT-1, CX43, and, IL-1β expression in the hippocampus and ACC. Overall, these results suggest that LDN-212320 prevents CFA-induced allodynia and hyperalgesia by upregulating astroglial GLT-1 and CX43 expression and decreasing microglial activation in the hippocampus and ACC. Therefore, LDN-212320 could be developed as a novel therapeutic drug candidate for chronic inflammatory pain.
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Affiliation(s)
- Ghallab Alotaibi
- Department of Pharmaceutical Sciences, College of Pharmacy, South Dakota State University, Brookings, SD 57007, USA
| | - Amna Khan
- Department of Pharmaceutical Sciences, College of Pharmacy, South Dakota State University, Brookings, SD 57007, USA
| | - Patrick J. Ronan
- Research Service, Sioux Falls VA Healthcare System, Sioux Falls, SD 57105, USA
- Department of Psychiatry and Basic Biomedical Sciences, University of South Dakota Sanford School of Medicine, Sioux Falls, SD 57105, USA
| | - Kabirullah Lutfy
- College of Pharmacy, Western University of Health Sciences, Pomona, CA 91766, USA
| | - Shafiqur Rahman
- Department of Pharmaceutical Sciences, College of Pharmacy, South Dakota State University, Brookings, SD 57007, USA
- Research Service, Sioux Falls VA Healthcare System, Sioux Falls, SD 57105, USA
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8
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Del Vescovo S, Venerito V, Iannone C, Lopalco G. Uncovering the Underworld of Axial Spondyloarthritis. Int J Mol Sci 2023; 24:6463. [PMID: 37047435 PMCID: PMC10095023 DOI: 10.3390/ijms24076463] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 03/28/2023] [Accepted: 03/28/2023] [Indexed: 04/14/2023] Open
Abstract
Axial spondyloarthritis (axial-SpA) is a multifactorial disease characterized by inflammation in sacroiliac joints and spine, bone reabsorption, and aberrant bone deposition, which may lead to ankylosis. Disease pathogenesis depends on genetic, immunological, mechanical, and bioenvironmental factors. HLA-B27 represents the most important genetic factor, although the disease may also develop in its absence. This MHC class I molecule has been deeply studied from a molecular point of view. Different theories, including the arthritogenic peptide, the unfolded protein response, and HLA-B27 homodimers formation, have been proposed to explain its role. From an immunological point of view, a complex interplay between the innate and adaptive immune system is involved in disease onset. Unlike other systemic autoimmune diseases, the innate immune system in axial-SpA has a crucial role marked by abnormal activity of innate immune cells, including γδ T cells, type 3 innate lymphoid cells, neutrophils, and mucosal-associated invariant T cells, at tissue-specific sites prone to the disease. On the other hand, a T cell adaptive response would seem involved in axial-SpA pathogenesis as emphasized by several studies focusing on TCR low clonal heterogeneity and clonal expansions as well as an interindividual sharing of CD4/8 T cell receptors. As a result of this immune dysregulation, several proinflammatory molecules are produced following the activation of tangled intracellular pathways involved in pathomechanisms of axial-SpA. This review aims to expand the current understanding of axial-SpA pathogenesis, pointing out novel molecular mechanisms leading to disease development and to further investigate potential therapeutic targets.
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Affiliation(s)
- Sergio Del Vescovo
- Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), Polyclinic Hospital, University of Bari, 70124 Bari, Italy
| | - Vincenzo Venerito
- Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), Polyclinic Hospital, University of Bari, 70124 Bari, Italy
| | - Claudia Iannone
- Division of Clinical Rheumatology, ASST Gaetano Pini-CTO Institute, 20122 Milan, Italy
| | - Giuseppe Lopalco
- Department of Precision and Regenerative Medicine and Ionian Area (DiMePRe-J), Polyclinic Hospital, University of Bari, 70124 Bari, Italy
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9
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Sun JL, Dai WJ, Shen XY, Lü N, Zhang YQ. Interleukin-17 is involved in neuropathic pain and spinal synapse plasticity on mice. J Neuroimmunol 2023; 377:578068. [PMID: 36948094 DOI: 10.1016/j.jneuroim.2023.578068] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2022] [Revised: 02/08/2023] [Accepted: 03/06/2023] [Indexed: 03/11/2023]
Abstract
Neuropathic pain seriously affects people's life, but its mechanism is not clear. Interleukin-17 (IL-17) is a proinflammation cytokine and involved in pain regulation. Our previous study found that IL-17 markedly enhanced the excitatory activity of spinal dorsal neurons in mice spinal slices. The present study attempts to explore if IL-17 contributes to neuropathic pain and spinal synapse plasticity. A model of spared nerve injury (SNI) was established in C57BL/6 J mice and IL-17a mutant mice. The pain-like behaviors was tested by von Frey test and dynamic mechanical stimuli, and the expression of IL-17 and its receptor, IL-17RA, was detected by immunohistochemical staining. C-fiber evoked field potentials were recorded in vivo. In the spinal dorsal horn, IL-17 predominantly expressed in the superficial spinal astrocytes and IL-17RA expressed mostly in neurons and slightly in astrocytes. The SNI-induced static and dynamic allodynia was significantly prevented by pretreatment of neutralizing IL-17 antibody (intrathecal injection, 2 μg/10 μL) and attenuated in IL-17a mutant mice. Post-treatment of IL-17 neutralizing antibody also partially relieved the established mechanical allodynia. Moreover, spinal long-term potentiation (LTP) of C-fiber evoked field potentials, a substrate for central sensitization, was suppressed by IL-17 neutralizing antibody. Intrathecal injection of IL-17 recombinant protein (0.2 μg/10 μL) mimicked the mechanical allodynia and facilitated the spinal LTP. These data implied that IL-17 in the spinal cord played a crucial role in neuropathic pain and central sensitization.
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Affiliation(s)
- Jia-Lu Sun
- Department of Translational Neuroscience, Jing'an District Center Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Wen-Jing Dai
- Department of Translational Neuroscience, Jing'an District Center Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Xin-Yuan Shen
- Department of Translational Neuroscience, Jing'an District Center Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai 200032, China
| | - Ning Lü
- Department of Translational Neuroscience, Jing'an District Center Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai 200032, China.
| | - Yu-Qiu Zhang
- Department of Translational Neuroscience, Jing'an District Center Hospital of Shanghai, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai 200032, China.
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Pang J, Xin P, Kong Y, Wang Z, Wang X. Resolvin D2 Reduces Chronic Neuropathic Pain and Bone Cancer Pain via Spinal Inhibition of IL-17 Secretion, CXCL1 Release and Astrocyte Activation in Mice. Brain Sci 2023; 13:brainsci13010152. [PMID: 36672133 PMCID: PMC9856778 DOI: 10.3390/brainsci13010152] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2022] [Revised: 01/08/2023] [Accepted: 01/12/2023] [Indexed: 01/18/2023] Open
Abstract
Chronic pain burdens patients and healthcare systems worldwide. Pain control remains urgently required. IL-17 (interleukin-17)-mediated neuroinflammation is of unique importance in spinal nociceptive transduction in pathological pain development. Recently, resolvin D2 (RvD2), as a bioactive, specialized pro-resolving mediator derived from docosahexaenoic acid, exhibits potent resolution of inflammation in several neurological disorders. This preclinical study evaluates the therapeutic potential and underlying targets of RvD2 in two mouse models of chronic pain, including sciatic nerve ligation-caused neuropathic pain and sarcoma-caused bone cancer pain. Herein, we report that repetitive injections of RvD2 (intrathecal, 500 ng) reduce the initiation of mechanical allodynia and heat hyperalgesia following sciatic nerve damage and bone cancer. Single exposure to RvD2 (intrathecal, 500 ng) attenuates the established neuropathic pain and bone cancer pain. Furthermore, systemic RvD2 (intravenous, 5 μg) therapy is effective in attenuating chronic pain behaviors. Strikingly, RvD2 treatment suppresses spinal IL-17 overexpression, chemokine CXCL1 release and astrocyte activation in mice undergoing sciatic nerve trauma and bone cancer. Pharmacological neutralization of IL-17 ameliorates chronic neuropathic pain and persistent bone cancer pain, as well as reducing spinal CXCL1 release. Recombinant IL-17-evoked acute pain behaviors and spinal CXCL1 release are mitigated after RvD2 administration. In addition, RvD2 treatment dampens exogenous CXCL1-caused transient pain phenotypes. Overall, these current findings identify that RvD2 therapy is effective against the initiation and persistence of long-lasting neuropathic pain and bone cancer pain, which may be through spinal down-modulation of IL-17 secretion, CXCL1 release and astrocyte activation.
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Affiliation(s)
- Jun Pang
- Department of Anesthesiology & Center for Brain Science, the First Affiliated Hospital of Xi’an Jiaotong University, Xi’an 710061, China
- Department of Anesthesiology, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan 030032, China
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Pengfei Xin
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Department of Stomatology, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan 030032, China
| | - Ying Kong
- Department of Anesthesiology, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan 030032, China
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Zhe Wang
- Department of Anesthesiology, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan 030032, China
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Xiaopeng Wang
- Department of Anesthesiology, Shanxi Bethune Hospital, Shanxi Academy of Medical Sciences, Tongji Shanxi Hospital, Third Hospital of Shanxi Medical University, Taiyuan 030032, China
- Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
- Correspondence:
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11
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Malange KF, Navia-Pelaez JM, Dias EV, Lemes JBP, Choi SH, Dos Santos GG, Yaksh TL, Corr M. Macrophages and glial cells: Innate immune drivers of inflammatory arthritic pain perception from peripheral joints to the central nervous system. FRONTIERS IN PAIN RESEARCH 2022; 3:1018800. [PMID: 36387416 PMCID: PMC9644179 DOI: 10.3389/fpain.2022.1018800] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Accepted: 10/03/2022] [Indexed: 07/22/2023] Open
Abstract
Millions of people suffer from arthritis worldwide, consistently struggling with daily activities due to debilitating pain evoked by this disease. Perhaps the most intensively investigated type of inflammatory arthritis is rheumatoid arthritis (RA), where, despite considerable advances in research and clinical management, gaps regarding the neuroimmune interactions that guide inflammation and chronic pain in this disease remain to be clarified. The pain and inflammation associated with arthritis are not isolated to the joints, and inflammatory mechanisms induced by different immune and glial cells in other tissues may affect the development of chronic pain that results from the disease. This review aims to provide an overview of the state-of-the-art research on the roles that innate immune, and glial cells play in the onset and maintenance of arthritis-associated pain, reviewing nociceptive pathways from the joint through the dorsal root ganglion, spinal circuits, and different structures in the brain. We will focus on the cellular mechanisms related to neuroinflammation and pain, and treatments targeting these mechanisms from the periphery and the CNS. A comprehensive understanding of the role these cells play in peripheral inflammation and initiation of pain and the central pathways in the spinal cord and brain will facilitate identifying new targets and pathways to aide in developing therapeutic strategies to treat joint pain associated with RA.
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Affiliation(s)
- Kaue Franco Malange
- Department of Anesthesiology, University of California, San Diego, CA, United States
| | | | - Elayne Vieira Dias
- Department of Neurology, University of California, San Francisco, CA, United States
| | | | - Soo-Ho Choi
- Department of Medicine, University of California, San Diego, CA, United States
| | | | - Tony L. Yaksh
- Department of Anesthesiology, University of California, San Diego, CA, United States
| | - Maripat Corr
- Department of Medicine, University of California, San Diego, CA, United States
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12
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Jiang X, Zhou R, Zhang Y, Zhu T, Li Q, Zhang W. Interleukin-17 as a potential therapeutic target for chronic pain. Front Immunol 2022; 13:999407. [PMID: 36248896 PMCID: PMC9556763 DOI: 10.3389/fimmu.2022.999407] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 09/20/2022] [Indexed: 11/13/2022] Open
Abstract
Chronic pain remains to be a clinical challenge and is recognized as a major health problem with varying impacts on quality of life. Currently, the first-line therapy for chronic pain is opioids, which are often accompanied by unwanted psychoactive side effects. Thus, new and effective treatments for chronic pain are urgently needed and eagerly pursued. Inflammatory cytokines, especially interleukin-17 (IL-17), are reportedly potential therapeutic targets owing to their pivotal role in chronic pain from the neuroinflammation perspective. Recently, substantial evidence confirmed that IL-17 and IL-17 receptors (IL-17Rs) were increased in neuropathic, inflammatory, and cancer pain models. Notably, IL-17/IL-17R antibodies also reportedly relieve or cure inflammatory- and pain-related diseases. However, existing studies have reported controversial results regarding IL-17/IL-17Rs as potential therapeutic targets in diverse animal models of chronic pain. In this review, we present a summary of published studies and discuss the evidence, from basic to clinical to research, regarding the role and mechanism of action between IL-17 and diverse kinds of chronic pain in animal models and clinical patients. Furthermore, we evaluated IL-17-based therapy as a potential therapeutic strategy for inflammatory- and pain-related disease. Importantly, we also discussed clinical trials of IL-17/IL-17R targeting monoclonal antibodies. Overall, we found that IL-17 is a potential therapeutic target for chronic pain from the perspective of neuroinflammation.
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Affiliation(s)
- Xiaojuan Jiang
- Department of Anesthesiology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
- The Research Units of West China (2018RU012)-Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu, China
| | - Ruihao Zhou
- Department of Anesthesiology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
- The Research Units of West China (2018RU012)-Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu, China
| | - Yujun Zhang
- Department of Anesthesiology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
- The Research Units of West China (2018RU012)-Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu, China
| | - Tao Zhu
- Department of Anesthesiology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
- The Research Units of West China (2018RU012)-Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu, China
| | - Qian Li
- Department of Anesthesiology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
- The Research Units of West China (2018RU012)-Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu, China
- *Correspondence: Qian Li, ; Weiyi Zhang,
| | - Weiyi Zhang
- Department of Anesthesiology, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, China
- The Research Units of West China (2018RU012)-Chinese Academy of Medical Sciences, West China Hospital, Sichuan University, Chengdu, China
- *Correspondence: Qian Li, ; Weiyi Zhang,
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13
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Hikosaka M, Kawano T, Wada Y, Maeda T, Sakurai T, Ohtsuki G. Immune-Triggered Forms of Plasticity Across Brain Regions. Front Cell Neurosci 2022; 16:925493. [PMID: 35978857 PMCID: PMC9376917 DOI: 10.3389/fncel.2022.925493] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 06/16/2022] [Indexed: 01/03/2023] Open
Abstract
Immune cells play numerous roles in the host defense against the invasion of microorganisms and pathogens, which induces the release of inflammatory mediators (e.g., cytokines and chemokines). In the CNS, microglia is the major resident immune cell. Recent efforts have revealed the diversity of the cell types and the heterogeneity of their functions. The refinement of the synapse structure was a hallmark feature of the microglia, while they are also involved in the myelination and capillary dynamics. Another promising feature is the modulation of the synaptic transmission as synaptic plasticity and the intrinsic excitability of neurons as non-synaptic plasticity. Those modulations of physiological properties of neurons are considered induced by both transient and chronic exposures to inflammatory mediators, which cause behavioral disorders seen in mental illness. It is plausible for astrocytes and pericytes other than microglia and macrophage to induce the immune-triggered plasticity of neurons. However, current understanding has yet achieved to unveil what inflammatory mediators from what immune cells or glia induce a form of plasticity modulating pre-, post-synaptic functions and intrinsic excitability of neurons. It is still unclear what ion channels and intracellular signaling of what types of neurons in which brain regions of the CNS are involved. In this review, we introduce the ubiquitous modulation of the synaptic efficacy and the intrinsic excitability across the brain by immune cells and related inflammatory cytokines with the mechanism for induction. Specifically, we compare neuro-modulation mechanisms by microglia of the intrinsic excitability of cerebellar Purkinje neurons with cerebral pyramidal neurons, stressing the inverted directionality of the plasticity. We also discuss the suppression and augmentation of the extent of plasticity by inflammatory mediators, as the meta-plasticity by immunity. Lastly, we sum up forms of immune-triggered plasticity in the different brain regions with disease relevance. Together, brain immunity influences our cognition, sense, memory, and behavior via immune-triggered plasticity.
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14
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Boakye PA, Tang SJ, Smith PA. Mediators of Neuropathic Pain; Focus on Spinal Microglia, CSF-1, BDNF, CCL21, TNF-α, Wnt Ligands, and Interleukin 1β. FRONTIERS IN PAIN RESEARCH 2022; 2:698157. [PMID: 35295524 PMCID: PMC8915739 DOI: 10.3389/fpain.2021.698157] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2021] [Accepted: 07/14/2021] [Indexed: 01/04/2023] Open
Abstract
Intractable neuropathic pain is a frequent consequence of nerve injury or disease. When peripheral nerves are injured, damaged axons undergo Wallerian degeneration. Schwann cells, mast cells, fibroblasts, keratinocytes and epithelial cells are activated leading to the generation of an “inflammatory soup” containing cytokines, chemokines and growth factors. These primary mediators sensitize sensory nerve endings, attract macrophages, neutrophils and lymphocytes, alter gene expression, promote post-translational modification of proteins, and alter ion channel function in primary afferent neurons. This leads to increased excitability and spontaneous activity and the generation of secondary mediators including colony stimulating factor 1 (CSF-1), chemokine C-C motif ligand 21 (CCL-21), Wnt3a, and Wnt5a. Release of these mediators from primary afferent neurons alters the properties of spinal microglial cells causing them to release tertiary mediators, in many situations via ATP-dependent mechanisms. Tertiary mediators such as BDNF, tumor necrosis factor α (TNF-α), interleukin 1β (IL-1β), and other Wnt ligands facilitate the generation and transmission of nociceptive information by increasing excitatory glutamatergic transmission and attenuating inhibitory GABA and glycinergic transmission in the spinal dorsal horn. This review focusses on activation of microglia by secondary mediators, release of tertiary mediators from microglia and a description of their actions in the spinal dorsal horn. Attention is drawn to the substantial differences in the precise roles of various mediators in males compared to females. At least 25 different mediators have been identified but the similarity of their actions at sensory nerve endings, in the dorsal root ganglia and in the spinal cord means there is considerable redundancy in the available mechanisms. Despite this, behavioral studies show that interruption of the actions of any single mediator can relieve signs of pain in experimental animals. We draw attention this paradox. It is difficult to explain how inactivation of one mediator can relieve pain when so many parallel pathways are available.
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Affiliation(s)
- Paul A Boakye
- Department of Anesthesiology, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, United States
| | - Shao-Jun Tang
- Department of Anesthesiology, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, United States
| | - Peter A Smith
- Neuroscience and Mental Health Institute and Department of Pharmacology, University of Alberta, Edmonton, AB, Canada
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15
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Luo X, Chen O, Wang Z, Bang S, Ji J, Lee SH, Huh Y, Furutani K, He Q, Tao X, Ko MC, Bortsov A, Donnelly CR, Chen Y, Nackley A, Berta T, Ji RR. IL-23/IL-17A/TRPV1 axis produces mechanical pain via macrophage-sensory neuron crosstalk in female mice. Neuron 2021; 109:2691-2706.e5. [PMID: 34473953 DOI: 10.1016/j.neuron.2021.06.015] [Citation(s) in RCA: 85] [Impact Index Per Article: 28.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2021] [Revised: 05/16/2021] [Accepted: 06/14/2021] [Indexed: 12/16/2022]
Abstract
Although sex dimorphism is increasingly recognized as an important factor in pain, female-specific pain signaling is not well studied. Here we report that administration of IL-23 produces mechanical pain (mechanical allodynia) in female but not male mice, and chemotherapy-induced mechanical pain is selectively impaired in female mice lacking Il23 or Il23r. IL-23-induced pain is promoted by estrogen but suppressed by androgen, suggesting an involvement of sex hormones. IL-23 requires C-fiber nociceptors and TRPV1 to produce pain but does not directly activate nociceptor neurons. Notably, IL-23 requires IL-17A release from macrophages to evoke mechanical pain in females. Low-dose IL-17A directly activates nociceptors and induces mechanical pain only in females. Finally, deletion of estrogen receptor subunit α (ERα) in TRPV1+ nociceptors abolishes IL-23- and IL-17-induced pain in females. These findings demonstrate that the IL-23/IL-17A/TRPV1 axis regulates female-specific mechanical pain via neuro-immune interactions. Our study also reveals sex dimorphism at both immune and neuronal levels.
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Affiliation(s)
- Xin Luo
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA.
| | - Ouyang Chen
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA; Department of Cell Biology, Duke University Medical Center, Durham, NC, USA
| | - Zilong Wang
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
| | - Sangsu Bang
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
| | - Jasmine Ji
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
| | - Sang Hoon Lee
- Pain Research Center, Department of Anesthesiology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Yul Huh
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA; Department of Cell Biology, Duke University Medical Center, Durham, NC, USA
| | - Kenta Furutani
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
| | - Qianru He
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
| | - Xueshu Tao
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
| | - Mei-Chuan Ko
- Department of Physiology and Pharmacology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - Andrey Bortsov
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
| | - Christopher R Donnelly
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA
| | - Yong Chen
- Department of Neurology, Duke University Medical Center, Durham, NC, USA
| | - Andrea Nackley
- Center for Translational Pain Medicine, Department of Anesthesiology, Duke University Medical Center, Durham, NC, USA; Department of Pharmacology and Cancer Biology, Duke University Medical Center, Durham, NC, USA
| | - Temugin Berta
- Pain Research Center, Department of Anesthesiology, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Ru-Rong Ji
- Center for Translational Pain Medicine, Department of Anesthesiology, 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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16
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Campolo M, Lanza M, Paterniti I, Filippone A, Ardizzone A, Casili G, Scuderi SA, Puglisi C, Mare M, Memeo L, Cuzzocrea S, Esposito E. PEA-OXA Mitigates Oxaliplatin-Induced Painful Neuropathy through NF-κB/Nrf-2 Axis. Int J Mol Sci 2021; 22:ijms22083927. [PMID: 33920318 PMCID: PMC8069952 DOI: 10.3390/ijms22083927] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2021] [Revised: 04/01/2021] [Accepted: 04/06/2021] [Indexed: 01/20/2023] Open
Abstract
Chemotherapy-induced neuropathy is a common, dose-dependent adverse effect of several antineoplastics, such as oxaliplatin (L-OHP). The aim of the present work was to evaluate the potential beneficial effects of 2-pentadecyl-2-oxazoline (PEA-OXA) in a murine model of oxaliplatin-induced peripheral neuropathy (OIPN). OIPN was induced by an intraperitoneally injection of L-OHP in rats on five consecutive days (D0-4) for a final cumulative dose of 10 mg/kg. PEA-OXA and ultramicronized palmitoylethanolamide (PEAum), both 10 mg/kg, were given orally 15-20 min prior (L-OHP) and sacrifice was made on day 25. Our results demonstrated that PEA-OXA, more than PEAum, reduced the development of hypersensitivity in rats; this was associated with the reduction in hyperactivation of glia cells and the increased production of proinflammatory cytokines in the dorsal horn of the spinal cord, accompanied by an upregulation of neurotrophic factors in the dorsal root ganglia (DRG). Moreover, we showed that PEA-OXA reduced L-OHP damage via a reduction in NF-κB pathway activation and a modulation of Nrf-2 pathways. Our findings identify PEA-OXA as a therapeutic target in chemotherapy-induced painful neuropathy, through the biomolecular signaling NF-κB/Nrf-2 axis, thanks to its abilities to counteract L-OHP damage. Therefore, we can consider PEA-OXA as a promising adjunct to chemotherapy to reduce chronic pain in patients.
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Affiliation(s)
- Michela Campolo
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D’Alcontres, 98166 Messina, Italy; (M.C.); (M.L.); (I.P.); (A.F.); (A.A.); (G.C.); (S.A.S.); (S.C.)
| | - Marika Lanza
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D’Alcontres, 98166 Messina, Italy; (M.C.); (M.L.); (I.P.); (A.F.); (A.A.); (G.C.); (S.A.S.); (S.C.)
| | - Irene Paterniti
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D’Alcontres, 98166 Messina, Italy; (M.C.); (M.L.); (I.P.); (A.F.); (A.A.); (G.C.); (S.A.S.); (S.C.)
| | - Alessia Filippone
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D’Alcontres, 98166 Messina, Italy; (M.C.); (M.L.); (I.P.); (A.F.); (A.A.); (G.C.); (S.A.S.); (S.C.)
| | - Alessio Ardizzone
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D’Alcontres, 98166 Messina, Italy; (M.C.); (M.L.); (I.P.); (A.F.); (A.A.); (G.C.); (S.A.S.); (S.C.)
| | - Giovanna Casili
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D’Alcontres, 98166 Messina, Italy; (M.C.); (M.L.); (I.P.); (A.F.); (A.A.); (G.C.); (S.A.S.); (S.C.)
| | - Sarah A. Scuderi
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D’Alcontres, 98166 Messina, Italy; (M.C.); (M.L.); (I.P.); (A.F.); (A.A.); (G.C.); (S.A.S.); (S.C.)
| | | | - Marzia Mare
- Istituto Oncologico Del Mediterraneo Spa, Via Penninazzo 7, 95029 Viagrande, Italy; (M.M.); (L.M.)
| | - Lorenzo Memeo
- Istituto Oncologico Del Mediterraneo Spa, Via Penninazzo 7, 95029 Viagrande, Italy; (M.M.); (L.M.)
| | - Salvatore Cuzzocrea
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D’Alcontres, 98166 Messina, Italy; (M.C.); (M.L.); (I.P.); (A.F.); (A.A.); (G.C.); (S.A.S.); (S.C.)
| | - Emanuela Esposito
- Department of Chemical, Biological, Pharmaceutical and Environmental Sciences, University of Messina, Viale Ferdinando Stagno D’Alcontres, 98166 Messina, Italy; (M.C.); (M.L.); (I.P.); (A.F.); (A.A.); (G.C.); (S.A.S.); (S.C.)
- Correspondence: ; Tel.: +39-090-6765208
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Yang Q, Yao Y, Zhao D, Zou H, Lai C, Xiang G, Wang G, Luo L, Shi Y, Li Y, Yang M, Huang X. LncRNA H19 secreted by umbilical cord blood mesenchymal stem cells through microRNA-29a-3p/FOS axis for central sensitization of pain in advanced osteoarthritis. Am J Transl Res 2021; 13:1245-1256. [PMID: 33841653 PMCID: PMC8014348] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2020] [Accepted: 12/25/2020] [Indexed: 06/12/2023]
Abstract
OBJECTIVE To explore the molecular mechanism of umbilical cord blood mesenchymal stem cells (UCBMSCs) in the treatment of advanced osteoarthritis pain. METHODS Normal healthy rats were selected to establish advanced osteoarthritis (OA) model, and the rats were randomly divided into control group, intravenous group, intracavitary group and intrathecal group. The intravenous group received intravenous injection of UCBMSCs, intracavitary group received intra-articular injection of UCBMSCs, and intrathecal group received subarachnoid injection of UCBMSCs. The pain behavior and serum pro-inflammatory factor levels were evaluated before and after treatment. microRNA-29a-3p and FOS mRNA in spinal dorsal horn was detected using qPCR, the phosphorylation of c-fos protein and NR1, NR2B, ERK and PKCg was detected using Western blot, and the level of LncRNA H19 was detected using qPCR. RESULTS LncRNA H19 was enriched in the exosomes of UCBMSCs. microRNA-29a-3p was the target gene of LncRNA H19, while FOS was the downstream target of microRNA-29a-3p. Pain and inflammation of rats in the intrathecal group improved best, and the phosphorylation levels of c-fos and NR1, NR2B, ERK and PKCg in the spinal dorsal horn of the intrathecal group decreased. LncRNA H19 regulated the central sensitization of astrocytes through microRNA-29a-3p/FOS axis. CONCLUSION Intrathecal injection of umbilical cord blood mesenchymal stem cells can improve the pain and central sensitization of advanced osteoarthritis through LncRNA H19/microRNA-29a-3p/FOS axis.
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Affiliation(s)
- Qinyan Yang
- Department of Hepatobiliary and Pancreatic Surgery, Cell Transplantation Center, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s HospitalChengdu 610072, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research HospitalChengdu 610072, China
| | - Yutong Yao
- Department of Hepatobiliary and Pancreatic Surgery, Cell Transplantation Center, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s HospitalChengdu 610072, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research HospitalChengdu 610072, China
| | - Daqiang Zhao
- Department of Anesthesiology, Shanghai Jiahui International HospitalShanghai 200233, China
| | - Haibo Zou
- Department of Hepatobiliary and Pancreatic Surgery, Cell Transplantation Center, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s HospitalChengdu 610072, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research HospitalChengdu 610072, China
| | - Chunyou Lai
- Department of Hepatobiliary and Pancreatic Surgery, Cell Transplantation Center, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s HospitalChengdu 610072, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research HospitalChengdu 610072, China
| | - Guangming Xiang
- Department of Hepatobiliary and Pancreatic Surgery, Cell Transplantation Center, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s HospitalChengdu 610072, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research HospitalChengdu 610072, China
| | - Guan Wang
- Department of Hepatobiliary and Pancreatic Surgery, Cell Transplantation Center, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s HospitalChengdu 610072, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research HospitalChengdu 610072, China
| | - Le Luo
- Department of Hepatobiliary and Pancreatic Surgery, Cell Transplantation Center, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s HospitalChengdu 610072, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research HospitalChengdu 610072, China
| | - Ying Shi
- School of Medicine, University of Electronic Science and Technology of ChinaChengdu 610054, Sichuan, China
| | - Yan Li
- School of Medicine, University of Electronic Science and Technology of ChinaChengdu 610054, Sichuan, China
| | - Maozhu Yang
- Department of Hepatobiliary and Pancreatic Surgery, Cell Transplantation Center, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s HospitalChengdu 610072, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research HospitalChengdu 610072, China
| | - Xiaolun Huang
- Department of Hepatobiliary and Pancreatic Surgery, Cell Transplantation Center, Sichuan Academy of Medical Sciences & Sichuan Provincial People’s HospitalChengdu 610072, China
- Chinese Academy of Sciences Sichuan Translational Medicine Research HospitalChengdu 610072, China
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Application of Salivary Biomarkers in the Diagnosis of Fibromyalgia. Diagnostics (Basel) 2021; 11:diagnostics11010063. [PMID: 33401557 PMCID: PMC7824401 DOI: 10.3390/diagnostics11010063] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2020] [Revised: 12/23/2020] [Accepted: 12/30/2020] [Indexed: 12/18/2022] Open
Abstract
Fibromyalgia (FM) is a highly prevalent syndrome that impairs the quality of life of the patients; however, its diagnosis is complex and mainly centered on pain symptoms. The study of salivary biomarkers has proven highly useful for the diagnosis and prognosis of numerous diseases. The objective of this review was to gather published data on the utilization of salivary biomarkers to facilitate and complement the diagnosis of FM. Salivary biomarkers used in FM diagnosis include cortisol; calgranulin; and the enzymes α-amylase, transaldolase, and phosphoglycerate mutase. Increased serum levels of C-reactive protein, cytokines interleukin 1-β, interleukin 6, interleukin 8, interleukin 10, interleukin 17, tumor necrosis factor α, and various chemokines may serve as salivary biomarkers, given observations of their increased serum levels in patients with FM. Further research is warranted to study in depth the role and performance of biomarkers currently used in FM diagnosis/prognosis and to identify novel salivary biomarkers for this disease.
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An Investigation of the Molecular Mechanisms Underlying the Analgesic Effect of Jakyak-Gamcho Decoction: A Network Pharmacology Study. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:6628641. [PMID: 33343676 PMCID: PMC7732394 DOI: 10.1155/2020/6628641] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 11/05/2020] [Accepted: 11/24/2020] [Indexed: 12/20/2022]
Abstract
Herbal drugs have drawn substantial interest as effective analgesic agents; however, their therapeutic mechanisms remain to be fully understood. To address this question, we performed a network pharmacology study to explore the system-level mechanisms that underlie the analgesic activity of Jakyak-Gamcho decoction (JGd; Shaoyao-Gancao-Tang in Chinese and Shakuyaku-Kanzo-To in Japanese), an herbal prescription consisting of Paeonia lactiflora Pallas and Glycyrrhiza uralensis Fischer. Based on comprehensive information regarding the pharmacological and chemical properties of the herbal constituents of JGd, we identified 57 active chemical compounds and their 70 pain-associated targets. The JGd targets were determined to be involved in the regulation of diverse biological activities as follows: calcium- and cytokine-mediated signalings, calcium ion concentration and homeostasis, cellular behaviors of muscle and neuronal cells, inflammatory response, and response to chemical, cytokine, drug, and oxidative stress. The targets were further enriched in various pain-associated signalings, including the PI3K-Akt, estrogen, ErbB, neurotrophin, neuroactive ligand-receptor interaction, HIF-1, serotonergic synapse, JAK-STAT, and cAMP pathways. Thus, these data provide a systematic basis to understand the molecular mechanisms underlying the analgesic activity of herbal drugs.
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20
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Luo H, Liu HZ, Zhang WW, Matsuda M, Lv N, Chen G, Xu ZZ, Zhang YQ. Interleukin-17 Regulates Neuron-Glial Communications, Synaptic Transmission, and Neuropathic Pain after Chemotherapy. Cell Rep 2020; 29:2384-2397.e5. [PMID: 31747607 DOI: 10.1016/j.celrep.2019.10.085] [Citation(s) in RCA: 85] [Impact Index Per Article: 21.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2019] [Revised: 08/14/2019] [Accepted: 10/22/2019] [Indexed: 02/08/2023] Open
Abstract
The proinflammatory cytokine interleukin-17 (IL-17) is implicated in pain regulation. However, the synaptic mechanisms by which IL-17 regulates pain transmission are unknown. Here, we report that glia-produced IL-17 suppresses inhibitory synaptic transmission in the spinal cord pain circuit and drives chemotherapy-induced neuropathic pain. We find that IL-17 not only enhances excitatory postsynaptic currents (EPSCs) but also suppresses inhibitory postsynaptic synaptic currents (IPSCs) and GABA-induced currents in lamina IIo somatostatin-expressing neurons in mouse spinal cord slices. IL-17 mainly expresses in spinal cord astrocytes, and its receptor IL-17R is detected in somatostatin-expressing neurons. Selective knockdown of IL-17R in spinal somatostatin-expressing interneurons reduces paclitaxel-induced hypersensitivity. Overexpression of IL-17 in spinal astrocytes is sufficient to induce mechanical allodynia in naive animals. In dorsal root ganglia, IL-17R expression in nociceptive sensory neurons is sufficient and required for inducing neuronal hyperexcitability after paclitaxel. Together, our data show that IL-17/IL-17R mediate neuron-glial interactions and neuronal hyperexcitability in chemotherapy-induced peripheral neuropathy.
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Affiliation(s)
- Hao Luo
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, Institutes of Brain Science, Institutes of Integrative Medicine, Fudan University, Shanghai 200032, China
| | - Hui-Zhu Liu
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, Institutes of Brain Science, Institutes of Integrative Medicine, Fudan University, Shanghai 200032, China
| | - Wen-Wen Zhang
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, Institutes of Brain Science, Institutes of Integrative Medicine, Fudan University, Shanghai 200032, China
| | - Megumi Matsuda
- Research Unit for the Neurobiology of Pain, Department of Anesthesiology, Kyoto Prefectural University of Medicine, Kyoto, Japan
| | - Ning Lv
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, Institutes of Brain Science, Institutes of Integrative Medicine, Fudan University, Shanghai 200032, China
| | - Gang Chen
- Key Laboratory of Neuroregeneration of Jiangsu and Ministry of Education, Co-Innovation Center of Neuroregeneration, Nantong University, Nantong, Jiangsu 226001, China
| | - Zhen-Zhong Xu
- Department of Physiology, Center of Neuroscience, Key Laboratory of Medical Neurobiology of the Ministry of Health of China, Zhejiang University School of Medicine, Hangzhou, China
| | - Yu-Qiu Zhang
- State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Department of Translational Neuroscience, Jing'an District Centre Hospital of Shanghai, Institutes of Brain Science, Institutes of Integrative Medicine, Fudan University, Shanghai 200032, China.
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21
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O'Reilly ML, Tom VJ. Neuroimmune System as a Driving Force for Plasticity Following CNS Injury. Front Cell Neurosci 2020; 14:187. [PMID: 32792908 PMCID: PMC7390932 DOI: 10.3389/fncel.2020.00187] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2020] [Accepted: 05/29/2020] [Indexed: 12/15/2022] Open
Abstract
Following an injury to the central nervous system (CNS), spontaneous plasticity is observed throughout the neuraxis and affects multiple key circuits. Much of this spontaneous plasticity can elicit beneficial and deleterious functional outcomes, depending on the context of plasticity and circuit affected. Injury-induced activation of the neuroimmune system has been proposed to be a major factor in driving this plasticity, as neuroimmune and inflammatory factors have been shown to influence cellular, synaptic, structural, and anatomical plasticity. Here, we will review the mechanisms through which the neuroimmune system mediates plasticity after CNS injury. Understanding the role of specific neuroimmune factors in driving adaptive and maladaptive plasticity may offer valuable therapeutic insight into how to promote adaptive plasticity and/or diminish maladaptive plasticity, respectively.
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Affiliation(s)
- Micaela L O'Reilly
- Department of Neurobiology and Anatomy, Marion Murray Spinal Cord Research Center, Drexel University College of Medicine, Philadelphia, PA, United States
| | - Veronica J Tom
- Department of Neurobiology and Anatomy, Marion Murray Spinal Cord Research Center, Drexel University College of Medicine, Philadelphia, PA, United States
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22
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Ni H, Xu M, Xie K, Fei Y, Deng H, He Q, Wang T, Liu S, Zhu J, Xu L, Yao M. Liquiritin Alleviates Pain Through Inhibiting CXCL1/CXCR2 Signaling Pathway in Bone Cancer Pain Rat. Front Pharmacol 2020; 11:436. [PMID: 32390832 PMCID: PMC7193085 DOI: 10.3389/fphar.2020.00436] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Accepted: 03/20/2020] [Indexed: 01/06/2023] Open
Abstract
Bone cancer pain (BCP) is an intractable clinical problem, and lacked effective drugs for treating it. Recent research showed that several chemokines in the spinal cord are involved in the pathogenesis of BCP. In this study, the antinociceptive effects of liquiritin, which is an active component extracted from Glycyrrhizae Radix, were tested and the underlying mechanisms targeting spinal dorsal horn (SDH) were investigated. The BCP group displayed a significant decrease in the mechanical withdrawal threshold on days 6, 12, and 18 when compared with sham groups. Intrathecal administration of different doses of liquiritin alleviated mechanical allodynia in BCP rats. The results of immunofluorescent staining and western blotting showed that liquiritin inhibited BCP-induced activation of astrocytes in the spinal cord. Moreover, intrathecal administration of liquiritin effectively inhibited the activation of CXCL1/CXCR2 signaling pathway and production of IL-1β and IL-17 in BCP rats. In astroglial-enriched cultures, Lipopolysaccharides (LPS) elicited the release of chemokine CXCL1, and the release was decreased in a dose-dependent manner by liquiritin. In primary neurons, liquiritin indirectly reduced the increase of CXCR2 by astroglial-enriched-conditioned medium but not directly on the CXCR2 target site. These results suggested that liquiritin effectively attenuated BCP in rats by inhibiting the activation of spinal astrocytic CXCL1 and neuronal CXCR2 pathway. These findings provided evidence regarding the the antinociceptive effect of liquiritin on BCP.
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Affiliation(s)
- Huadong Ni
- Department of Anesthesiology and Pain Research Center, The Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Miao Xu
- Department of Anesthesiology and Pain Research Center, The Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Keyue Xie
- Department of Anesthesiology and Pain Research Center, The Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Yong Fei
- Department of Anesthesiology and Pain Research Center, The Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Housheng Deng
- Department of Anesthesiology and Pain Research Center, The Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Qiuli He
- Department of Anesthesiology and Pain Research Center, The Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Tingting Wang
- Department of Anesthesiology and Pain Research Center, The Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Songlei Liu
- Department of Anesthesiology and Pain Research Center, The Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Jianjun Zhu
- Department of Anesthesiology and Pain Research Center, The Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Longsheng Xu
- Department of Anesthesiology and Pain Research Center, The Affiliated Hospital of Jiaxing University, Jiaxing, China
| | - Ming Yao
- Department of Anesthesiology and Pain Research Center, The Affiliated Hospital of Jiaxing University, Jiaxing, China
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23
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Banfi G, Diani M, Pigatto PD, Reali E. T Cell Subpopulations in the Physiopathology of Fibromyalgia: Evidence and Perspectives. Int J Mol Sci 2020; 21:ijms21041186. [PMID: 32054062 PMCID: PMC7072736 DOI: 10.3390/ijms21041186] [Citation(s) in RCA: 26] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2020] [Revised: 02/06/2020] [Accepted: 02/10/2020] [Indexed: 12/11/2022] Open
Abstract
Fibromyalgia is one of the most important “rheumatic” disorders, after osteoarthritis. The etiology of the disease is still not clear. At the moment, the most defined pathological mechanism is the alteration of central pain pathways, and emotional conditions can trigger or worsen symptoms. Increasing evidence supports the role of mast cells in maintaining pain conditions such as musculoskeletal pain and central sensitization. Importantly, mast cells can mediate microglia activation through the production of proinflammatory cytokines such as IL-1β, IL-6, and TNFα. In addition, levels of chemokines and proinflammatory cytokines are enhanced in serum and could contribute to inflammation at systemic level. Despite the well-characterized relationship between the nervous system and inflammation, the mechanism that links the different pathological features of fibromyalgia, including stress-related manifestations, central sensitization, and dysregulation of the innate and adaptive immune responses is largely unknown. This review aims to provide an overview of the current understanding of the role of adaptive immune cells, in particular T cells, in the physiopathology of fibromyalgia. It also aims at linking the latest advances emerging from basic science to envisage new perspectives to explain the role of T cells in interconnecting the psychological, neurological, and inflammatory symptoms of fibromyalgia.
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Affiliation(s)
- Giuseppe Banfi
- IRCCS Istituto Ortopedico Galeazzi, 20161Milan, Italy; (G.B.); (M.D.); (P.D.P.)
- School of Medicine, Università Vita-Salute San Raffaele, 20132 Milan, Italy
| | - Marco Diani
- IRCCS Istituto Ortopedico Galeazzi, 20161Milan, Italy; (G.B.); (M.D.); (P.D.P.)
| | - Paolo D. Pigatto
- IRCCS Istituto Ortopedico Galeazzi, 20161Milan, Italy; (G.B.); (M.D.); (P.D.P.)
- Department of Biomedical, Surgical and Dental Sciences, University of Milan, 20122 Milan, Italy
| | - Eva Reali
- IRCCS Istituto Ortopedico Galeazzi, 20161Milan, Italy; (G.B.); (M.D.); (P.D.P.)
- Correspondence:
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24
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Ramakrishnan P, Nagarajan D. Neuromyelitis optica spectrum disorder: an overview. Acta Neurobiol Exp (Wars) 2020. [DOI: 10.21307/ane-2020-023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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25
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Oki S. Eomes-expressing T-helper cells as potential target of therapy in chronic neuroinflammation. Neurochem Int 2019; 130:104348. [DOI: 10.1016/j.neuint.2018.11.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2018] [Revised: 11/27/2018] [Accepted: 11/30/2018] [Indexed: 11/29/2022]
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26
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Theoharides TC, Tsilioni I, Bawazeer M. Mast Cells, Neuroinflammation and Pain in Fibromyalgia Syndrome. Front Cell Neurosci 2019; 13:353. [PMID: 31427928 PMCID: PMC6687840 DOI: 10.3389/fncel.2019.00353] [Citation(s) in RCA: 79] [Impact Index Per Article: 15.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2019] [Accepted: 07/16/2019] [Indexed: 02/04/2023] Open
Abstract
Fibromyalgia Syndrome (FMS) is a disorder of chronic, generalized muscular pain, accompanied by sleep disturbances, fatigue and cognitive dysfunction. There is no definitive pathogenesis except for altered central pain pathways. We previously reported increased serum levels of the neuropeptides substance P (SP) and its structural analogue hemokinin-1 (HK-1) together with the pro-inflammatory cytokines IL-6 and TNF in FMS patients as compared to sedentary controls. We hypothesize that thalamic mast cells contribute to inflammation and pain, by releasing neuro-sensitizing molecules that include histamine, IL-1β, IL-6 and TNF, as well as calcitonin-gene related peptide (CGRP), HK-1 and SP. These molecules could either stimulate thalamic nociceptive neurons directly, or via stimulation of microglia in the diencephalon. As a result, inhibiting mast cell stimulation could be used as a novel approach for reducing pain and the symptoms of FMS.
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Affiliation(s)
- Theoharis C Theoharides
- Laboratory of Molecular Immunopharmacology and Drug Discovery, Department of Immunology, Tufts University School of Medicine, Boston, MA, United States.,Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, MA, United States.,Department of Internal Medicine, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, United States.,Department of Psychiatry, Tufts Medical Center, Tufts University School of Medicine, Boston, MA, United States
| | - Irene Tsilioni
- Laboratory of Molecular Immunopharmacology and Drug Discovery, Department of Immunology, Tufts University School of Medicine, Boston, MA, United States
| | - Mona Bawazeer
- Laboratory of Molecular Immunopharmacology and Drug Discovery, Department of Immunology, Tufts University School of Medicine, Boston, MA, United States.,Sackler School of Graduate Biomedical Sciences, Tufts University, Boston, MA, United States.,Department of Basic Medical Sciences, College of Medicine, King Saud Bin Abdulaziz University for Health Sciences, Riyadh, Saudi Arabia
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27
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McGonagle DG, McInnes IB, Kirkham BW, Sherlock J, Moots R. The role of IL-17A in axial spondyloarthritis and psoriatic arthritis: recent advances and controversies. Ann Rheum Dis 2019; 78:1167-1178. [PMID: 31278139 PMCID: PMC6788885 DOI: 10.1136/annrheumdis-2019-215356] [Citation(s) in RCA: 128] [Impact Index Per Article: 25.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 05/17/2019] [Accepted: 06/14/2019] [Indexed: 12/19/2022]
Abstract
Although the pathogenic mechanisms underlying axial spondyloarthritis (axSpA) and psoriatic arthritis (PsA) are not fully elucidated, several lines of evidence suggest that immune responses mediated by interleukin 17A (IL-17A) play a pivotal role in both diseases. This is best highlighted by the significant clinical efficacy shown with inhibitors of IL-17A in treating axSpA and PsA. Nevertheless, a number of knowledge gaps exist regarding the role of IL-17A in the pathophysiology of spondyloarthritis in man, including its cellular origin, its precise role in discrete disease processes such enthesitis, bone erosion, and bone formation, and the reasons for the discrepant responses to IL-17A inhibition observed in certain other spondyloarthritis manifestations. In this review, we focus on the latest data from studies investigating the role of IL-17A in ankylosing spondylitis (AS) and PsA that build on existing and emerging scientific knowledge in the field. Key remaining research questions are also highlighted to guide future research.
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Affiliation(s)
- Dennis G McGonagle
- Leeds Institute of Rheumatic and Musculoskeletal Medicine, University of Leeds, Leeds, UK.,NIHR Leeds Musculoskeletal Biomedical Research Unit, Chapel Allerton, Leeds Teaching Hospital Trust, Leeds, UK
| | - Iain B McInnes
- Institute of Infection Immunity and Inflammation, University of Glasgow, Glasgow, UK
| | - Bruce W Kirkham
- Rheumatology Department, Guy's and Saint Thomas' NHS Foundation Trust, London, UK
| | - Jonathan Sherlock
- Kennedy Institute of Rheumatology, University of Oxford, Oxford, UK.,Nuffield Department of Orthopaedics, Rheumatology and Musculoskeletal Sciences, University of Oxford, Oxford, UK
| | - Robert Moots
- Institute of Ageing and Chronic Disease, University of Liverpool, Liverpool, UK .,Department of Academic Rheumatology, Aintree University Hospital, Liverpool, UK
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28
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Jiang M, Bo J, Lei Y, Hu F, Xia Z, Liu Y, Lu C, Sun Y, Hou B, Ni K, Ma Z, Gu X. Anxiety-induced hyperalgesia in female rats is mediated by cholecystokinin 2 receptor in rostral ventromedial medulla and spinal 5-hydroxytryptamine 2B receptor. J Pain Res 2019; 12:2009-2026. [PMID: 31308730 PMCID: PMC6613357 DOI: 10.2147/jpr.s187715] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2018] [Accepted: 05/29/2019] [Indexed: 12/18/2022] Open
Abstract
Background Preoperative anxiety is associated with postoperative hyperalgesia; however, few studies have investigated the mechanism underlying this association in female surgical patients. Research has suggested that ON cells in the rostral ventromedial medulla (RVM) receive nerve impulses via cholecystokinin 2 (CCK2) receptors, facilitating hyperalgesia. Additionally, the downstream serotonergic projection system from the RVM to the spinal cord has a dual regulating effect on pain responses, and the 5-hydoxytryptophan 2B (5-HT2B) receptor in spinal dorsal horn neurons is critically involved in mechanical allodynia. Methods Ovariectomized rats were treated with estrogen replacement, single prolonged stress (SPS), and plantar incision. Various receptor agonists and antagonists were then administered into the RVM and spinal cord to study the mechanism underlying postoperative hyperalgesia caused by preoperative anxiety in female rats. Results Behavioral testing revealed that preoperative SPS induced postoperative hyperalgesia, as well as the expression of the CCK2 receptor in the RVM and the expression of the 5-HT2B receptor, protein kinase Cγ (PKCγ), and phosphorylation of the N-methyl-d-aspartate receptor1 (p-NR1) in the spinal cord increased confirmed by Western blot. RVM microinjection of the CCK2 receptor agonist CCK-8 and intrathecal injection of the 5-HT2B receptor agonist BW723C86 both produced hyperalgesia in female rats after plantar incision, whereas the CCK2 receptor antagonist YM022, the 5-HT2B receptor antagonist RS127445, and the PKCγ inhibitor C37H65N9O13 decreased the rats’ sensitivity to the same stimulus. Additionally, electrophysiological analysis suggested that activation of the 5-HT2B receptor increased the whole-cell current (IBa) in superficial dorsal horn neurons through the PKCγ pathway. Conclusion Our study demonstrated that preoperative anxiety-induced postoperative hyperalgesia in female rats is associated with descending pain pathways. The CCK2 receptor in the RVM and spinal 5-HT2B receptor may play a role in this hyperalgesic effect.
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Affiliation(s)
- Ming Jiang
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, People's Republic of China
| | - Jinhua Bo
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, People's Republic of China
| | - Yishan Lei
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, People's Republic of China
| | - Fan Hu
- Department of Basic Medicine, Analytical & Testing Center, Nanjing Medical University, Nanjing, Jiangsu Province, People's Republic of China
| | - Zhengrong Xia
- Department of Basic Medicine, Analytical & Testing Center, Nanjing Medical University, Nanjing, Jiangsu Province, People's Republic of China
| | - Yue Liu
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, People's Republic of China
| | - Cui'e Lu
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, People's Republic of China
| | - Yu'e Sun
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, People's Republic of China
| | - Bailing Hou
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, People's Republic of China
| | - Kun Ni
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, People's Republic of China
| | - Zhengliang Ma
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, People's Republic of China
| | - Xiaoping Gu
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, Jiangsu Province, People's Republic of China
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29
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Huo W, Liu Y, Lei Y, Zhang Y, Huang Y, Mao Y, Wang C, Sun Y, Zhang W, Ma Z, Gu X. Imbalanced spinal infiltration of Th17/Treg cells contributes to bone cancer pain via promoting microglial activation. Brain Behav Immun 2019; 79:139-151. [PMID: 30685532 DOI: 10.1016/j.bbi.2019.01.024] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2018] [Revised: 01/16/2019] [Accepted: 01/23/2019] [Indexed: 12/30/2022] Open
Abstract
Increasing evidence suggests that T cells participate in the pathology of neuropathic pain, as well as the activation of microglia. However, whether T cells infiltrate into the spinal cord and contribute to the development of bone cancer pain (BCP) remains unknown. Here, we used a mouse model of BCP to show that numbers of T cells infiltrated into the spinal cord after sarcoma cell implantation with increased BCP, and most infiltrating T cells in the spinal cord were CD3+CD4+ T cells. Both Th17 and Treg subpopulations were analyzed by immunofluorescence. Treg cells in the spinal cord were transiently up-regulated, followed by an imbalance towards Th17 afterwards, and elevated IL-17/IL-17A levels were observed in both blood and spinal cord. Meanwhile, TGF-β, IL-6, and IL-23, the factors which regulate Th17/Treg differentiation, increased their expressions during the development of BCP. Additionally, IL-17A receptor (IL-17AR) was found to be expressed on microglia, and the level of IL-17AR increased with activated microglia during BCP development. Furthermore, BCP was ameliorated when IL-17/IL-17A neutralizing antibodies were intrathecally injected, accompanied with inhibited Th17/Treg infiltration and suppressed microglial activation. In conclusion, T cells infiltrated into the spinal cord with the imbalance of Th17/Treg towards Th17 during the development of BCP, which could promote the microglial activation and further increased BCP, while neutralizing IL-17/IL-17A in the spinal cord could ameliorate BCP. Our results suggest that targeting the imbalanced Th17/Treg infiltration in the spinal cord could be a novel strategy for BCP therapy.
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Affiliation(s)
- Wenwen Huo
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical Department of Nanjing University, Nanjing 210008, Jiangsu Province, China
| | - Yue Liu
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical Department of Nanjing University, Nanjing 210008, Jiangsu Province, China
| | - Yishan Lei
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical Department of Nanjing University, Nanjing 210008, Jiangsu Province, China
| | - Ying Zhang
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical Department of Nanjing University, Nanjing 210008, Jiangsu Province, China
| | - Yulin Huang
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical Department of Nanjing University, Nanjing 210008, Jiangsu Province, China
| | - Yanting Mao
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical Department of Nanjing University, Nanjing 210008, Jiangsu Province, China
| | - Chenchen Wang
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical Department of Nanjing University, Nanjing 210008, Jiangsu Province, China
| | - Yu'e Sun
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical Department of Nanjing University, Nanjing 210008, Jiangsu Province, China
| | - Wei Zhang
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical Department of Nanjing University, Nanjing 210008, Jiangsu Province, China
| | - Zhengliang Ma
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical Department of Nanjing University, Nanjing 210008, Jiangsu Province, China.
| | - Xiaoping Gu
- Department of Anesthesiology, Affiliated Drum Tower Hospital of Medical Department of Nanjing University, Nanjing 210008, Jiangsu Province, China.
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30
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The effects of interleukin 17A on left stellate ganglion remodeling are mediated by neuroimmune communication in normal structural hearts. Int J Cardiol 2019; 279:64-71. [PMID: 30642646 DOI: 10.1016/j.ijcard.2019.01.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/25/2018] [Revised: 12/06/2018] [Accepted: 01/02/2019] [Indexed: 12/28/2022]
Abstract
BACKGROUND It is reported interleukin (IL)-17A, a classical proinflammatory cytokine, is implicated in neuroimmune-associated remodeling in neural plasticity and pathological conditions. However, the effect of IL-17A on left stellate ganglion (LSG) remodeling remains unclear. OBJECTIVE This study was performed to determine whether exogenous IL-17A promotes LSG remodeling and destabilize ventricular electrophysiological properties (EPs) in normal canines. METHODS 24 beagles were randomly allocated into three groups. In the first group, animals were subjected to 0.1 ml phosphate buffer saline (PBS) microinjection of into LSG (n = 8), an equivalent IL-17A was administrated in the second group (n = 8), and an equivalent anti-IL-17A mAb plus IL-17A was administrated in the third group (n = 8). The ventricular EPs, neural function and activity of the LSG were determined at baseline and 30 min after administration. In the end, LSG tissues were collected. RESULTS Compared with the control group, the experimental group had a significantly shorter effective refractory period (ERP) and action potential duration (APD)90, an increased ERP, APD90, Smax dispersion, and APD alternans cycle length; and steepened APD restitution curves. In addition, IL-17A enhanced the neural function and activity of the LSG, upregulated the expressions of neuropeptides and proinflammatory cytokines and cells. And all these effects were attenuated by anti-IL-17A mAb. Importantly, IL-17 receptor A (IL-17R-A) was detected in sympathetic neurons in the LSG. CONCLUSION IL-17A promoted LSG remodeling by regulating the neural inflammation response. It did so by binding to IL-17R-A, resulting in unstable ventricular electrophysiology in normal structural hearts.
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Ebersberger A. The analgesic potential of cytokine neutralization with biologicals. Eur J Pharmacol 2018; 835:19-30. [DOI: 10.1016/j.ejphar.2018.07.040] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2018] [Revised: 06/26/2018] [Accepted: 07/19/2018] [Indexed: 12/13/2022]
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Allen M, Johnson RA. Evaluation of self-injurious behavior, thermal sensitivity, food intake, fecal output, and pica after injection of three buprenorphine formulations in rats (Rattus norvegicus). Am J Vet Res 2018; 79:697-703. [DOI: 10.2460/ajvr.79.7.697] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Allen M, Nietlisbach N, Johnson RA. Evaluation of self-injurious behavior, food intake, fecal output, and thermal withdrawal latencies after injection of a high-concentration buprenorphine formulation in rats (Rattus norvegicus). Am J Vet Res 2018; 79:154-162. [DOI: 10.2460/ajvr.79.2.154] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Abstract
OBJECTIVE To evaluate effects of high-concentration buprenorphine (HCB) on self-injurious behavior, food intake, fecal output, and thermal withdrawal latencies in healthy rats.
ANIMALS 8 Sprague-Dawley rats.
PROCEDURES Rats received 4 SC treatments (HCB at 0.075, 0.15, or 0.30 mg/kg [HCB0.075, HCB0.15, and HCB0.30, respectively] or 5% dextrose solution [0.20 mL/kg]) in a randomized, crossover-design study. Self-injurious behavior was assessed for 8 hours after injection. Food intake and fecal output were assessed for predetermined periods before and after treatment and separated into 12-hour light and dark periods for further analysis. Withdrawal latencies were assessed before (time 0) and at predetermined times after injection. Data were compared among treatments and time points.
RESULTS Self-injurious behavior was observed up to 8 hours after injection for all HCB, but not dextrose, treatments. Preinjection food intake and fecal output amounts were similar among groups and higher during the dark period than during the light period. Food intake after all HCB treatments was higher during the light period and lower during the dark period, compared with preinjection results for the same treatments and with postinjection results for dextrose administration. Light-period fecal output was lower after HCB0.15 and HCB0.30 administration, compared with preinjection values for the same treatments and postinjection values for dextrose administration. Percentage change in withdrawal latency was significantly higher than that at time 0 (ie, 0%) for only 1 treatment (HCB0.30) at 1 time point (1 hour after injection).
CONCLUSIONS AND CLINICAL RELEVANCE Although HCB0.30 produced a degree of thermal hypoalgesia in healthy rats, self-injurious behavior and alterations in food intake and fecal output were detected, potentially affecting clinical utility of the treatment.
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Bidirectional modulation between infiltrating CD3 + T-lymphocytes and astrocytes in the spinal cord drives the development of allodynia in monoarthritic rats. Sci Rep 2018; 8:51. [PMID: 29311654 PMCID: PMC5758647 DOI: 10.1038/s41598-017-18357-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 12/11/2017] [Indexed: 12/30/2022] Open
Abstract
Increasing evidence suggests that T cells and glia participate in the process of neuropathic pain. However, little is known about the involvement of T cells or the interaction between glia and T cells at the molecular level. Here we investigated the phenotype of T cell infiltration into the spinal cord in inflammatory pain and explored potential crosstalk between glia and T cells. The establishment of monoarthritis produced T cell infiltration and astrocyte activation, exhibiting similar kinetics in the spinal cord. T-cell-deficient (Rag1−/−) mice significantly attenuated MA-induced mechanical allodynia and GFAP upregulation. Double immunofluorescence staining showed that CD3 mainly colocalized with interferon-gamma (IFN-γ). Western blot and flow cytometry showed that multiple intrathecal administrations of astrocytic inhibitor fluorocitrate decreased IFN-γ-production without decreasing T cell number in the spinal cord. Spinal IFN-γ blockade reduced MA-induced mechanical allodynia and astroglial activation. In contrast, treatment with rIFN-γ directly elicited persistent mechanical allodynia and upregulation of GFAP and pJNK1/2 in naïve rats. Furthermore, rIFN-γ upregulated the phosphorylation of NF-κB p65 in cultured astrocytes vitro and spinal dorsal horn vivo. The results suggest that Th1 cells and astrocytes maintain inflammatory pain and imply that there may be a positive feedback loop between these cells via IFN-γ.
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CaMKIIα Mediates the Effect of IL-17 To Promote Ongoing Spontaneous and Evoked Pain in Multiple Sclerosis. J Neurosci 2017; 38:232-244. [PMID: 29146590 DOI: 10.1523/jneurosci.2666-17.2017] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2017] [Revised: 10/26/2017] [Accepted: 11/07/2017] [Indexed: 02/06/2023] Open
Abstract
Pain is a common and severe symptom in multiple sclerosis (MS), a chronic inflammatory and demyelinating disease of the CNS. The neurobiological mechanism underlying MS pain is poorly understood. In this study, we investigated the role of Ca2+/calmodulin-dependent protein kinase IIα (CaMKIIα) in driving chronic pain in MS using a mouse experimental autoimmune encephalomyelitis (EAE) model. We found that spinal CaMKIIα activity was enhanced in EAE, correlating with the development of ongoing spontaneous pain and evoked hypersensitivity to mechanical and thermal stimuli. Prophylactic or acute administration of KN93, a CaMKIIα inhibitor, significantly reduced the clinical scores of EAE and attenuated mechanical allodynia and thermal hyperalgesia in EAE. siRNA targeting CaMKIIα reversed established mechanical and thermal hypersensitivity in EAE mice. Furthermore, CaMKIIαT286A point mutation mice showed significantly reduced EAE clinical scores, an absence of evoked pain, and ongoing spontaneous pain when compared with littermate wild-type mice. We found that IL-17 is responsible for inducing but not maintaining mechanical and thermal hyperalgesia that is mediated by CaMKIIα signaling in EAE. Together, these data implicate a critical role of CaMKIIα as a cellular mechanism for pain and neuropathy in multiple sclerosis and IL-17 may act upstream of CaMKIIα in the generation of pain.SIGNIFICANCE STATEMENT Pain is highly prevalent in patients with multiple sclerosis (MS), significantly reducing patients' quality of life. Using the experimental autoimmune encephalomyelitis (EAE) model, we were able to study not only evoked hyperalgesia, but also for the first time to demonstrate spontaneous pain that is also experienced by patients. Our study identified a role of spinal CaMKIIα in promoting and maintaining persistent ongoing spontaneous pain and evoked hyperalgesia pain in EAE. We further demonstrated that IL-17 contributes to persistent pain in EAE and functions as an upstream regulator of CaMKIIα signaling. These data for the first time implicated CaMKIIα and IL-17 as critical regulators of persistent pain in EAE, which may ultimately offer new therapeutic targets for mitigating pain in multiple sclerosis.
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Interleukin-17A is involved in mechanical hyperalgesia but not in the severity of murine antigen-induced arthritis. Sci Rep 2017; 7:10334. [PMID: 28871176 PMCID: PMC5583382 DOI: 10.1038/s41598-017-10509-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2017] [Accepted: 07/28/2017] [Indexed: 12/14/2022] Open
Abstract
Interleukin-17A (IL-17A) is considered an important pro-inflammatory cytokine but its importance in joint diseases such as rheumatoid arthritis (RA) is unclear. It has also been reported that IL-17A may induce pain but it is unclear whether pro-inflammatory and pro-nociceptive effects are linked. Here we studied in wild type (WT) and IL-17A knockout (IL-17AKO) mice inflammation and hyperalgesia in antigen-induced arthritis (AIA). We found that the severity and time course of AIA were indistinguishable in WT and IL-17AKO mice. Furthermore, the reduction of inflammation by sympathectomy, usually observed in WT mice, was preserved in IL-17AKO mice. Both findings suggest that IL-17A is redundant in AIA pathology. However, in the course of AIA IL-17AKO mice showed less mechanical hyperalgesia than WT mice indicating that IL-17A contributes to pain even if it is not crucial for arthritis pathology. In support for a role of IL-17A and other members of the IL-17 family in the generation of pain we found that sensory neurones in the dorsal root ganglia (DRG) express all IL-17 receptor subtypes. Furthermore, in isolated DRG neurones most IL-17 isoforms increased tetrodotoxin- (TTX-) resistant sodium currents which indicate a role of IL-17 members in inflammation-evoked sensitization of sensory nociceptive neurones.
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Hung AL, Lim M, Doshi TL. Targeting cytokines for treatment of neuropathic pain. Scand J Pain 2017; 17:287-293. [PMID: 29229214 DOI: 10.1016/j.sjpain.2017.08.002] [Citation(s) in RCA: 100] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2017] [Revised: 07/26/2017] [Accepted: 08/01/2017] [Indexed: 12/11/2022]
Abstract
BACKGROUND Neuropathic pain is a challenging condition often refractory to existing therapies. An increasing number of studies have indicated that the immune system plays a crucial role in the mediation of neuropathic pain. Exploration of the various functions of individual cytokines in neuropathic pain will provide greater insight into the mechanisms of neuropathic pain and suggest potential opportunities to expand the repertoire of treatment options. METHODS A literature review was performed to assess the role of pro-inflammatory and anti-inflammatory cytokines in the development of neuropathic pain. Both direct and indirect therapeutic approaches that target various cytokines for pain were reviewed. The current understanding based on preclinical and clinical studies is summarized. RESULTS AND CONCLUSIONS In both human and animal studies, neuropathic pain has been associated with a pro-inflammatory state. Analgesic therapies involving direct manipulation of various cytokines and indirect methods to alter the balance of the immune system have been explored, although there have been few large-scale clinical trials evaluating the efficacy of immune modulators in the treatment of neuropathic pain. TNF-α is perhaps the widely studied pro-inflammatory cytokine in the context of neuropathic pain, but other pro-inflammatory (IL-1β, IL-6, and IL-17) and anti-inflammatory (IL-4, IL-10, TGF-β) signaling molecules are garnering increased interest. With better appreciation and understanding of the interaction between the immune system and neuropathic pain, novel therapies may be developed to target this condition.
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Affiliation(s)
- Alice L Hung
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Michael Lim
- Department of Neurosurgery, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - Tina L Doshi
- Department of Anesthesiology and Critical Care Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.
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Pernambuco AP, Fonseca ACS, Oliveira GLD, Faria PC, Silva RV, Meireles C, Arantes SE, Silva FC, Reis DD. Increased Levels of IL-17, IL-23, MIP-1α, MCP-1 and Global Leukocytes in Fibromyalgia Patients. ACTA ACUST UNITED AC 2017. [DOI: 10.1080/24708593.2017.1357664] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- Andrei Pereira Pernambuco
- CEPEP, Centro Universitário de Formiga, Formiga, Brazil,
- Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil and
- Universidade de Itaúna, Itaúna, Minas Gerais, Brazil
| | | | | | | | | | | | | | | | - Débora d’Ávila Reis
- Morfologia, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Brazil and
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Zhu M, Yuan S, Yu W, Jia L, Sun Y. CXCL13 regulates the trafficking of GluN2B-containing NMDA receptor via IL-17 in the development of remifentanil-induced hyperalgesia in rats. Neurosci Lett 2017; 648:26-33. [DOI: 10.1016/j.neulet.2017.03.044] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 03/24/2017] [Accepted: 03/25/2017] [Indexed: 10/19/2022]
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Li S, Dai Q, Yu J, Liu T, Liu S, Ma L, Zhang Y, Han S, Li J. Identification of IL-17A-derived neural cell type and dynamic changes of IL-17A in serum/CSF of mice with ischemic stroke. Neurol Res 2017; 39:552-558. [PMID: 28441917 DOI: 10.1080/01616412.2017.1315863] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND Interleukin (IL)-17A was reported to be involved in the development of post-ischemic stroke inflammatory response and functional recovery. However, the IL-17A dynamic changes in serum/cerebrospinal fluid (CSF) and its role in neuronal injury following ischemic stroke are unclear. METHODS In vivo ischemic stroke was induced by 1 h of middle cerebral artery occlusion (MCAO) and 6 h-7 d reperfusion (R) in mice, while in vitro stroke was induced by 1 h oxygen-glucose deprivation (OGD)/24 h reoxygenation (R) in cultured cortical neurons. Enzyme-linked immunosorbent assay (ELISA) and double-labeled immunofluorescence of IL-17A with neuron (NeuN), astrocyte (GFAP) and microglia (Iba-1)-specific markers were used to determine the IL-17A levels in serum/CSF and neural cell type. RESULTS The ELISA results showed that IL-17A significantly increased both in peri-infarct region (p < 0.001) and CSF (p < 0.05) following 1 h MCAO/R 12 h. The levels of IL-17A in serum increased at R 1 d (p < 0.05) and peaked at R 3 d (p < 0.001) after 1 h MCAO. Immunofluorescent staining demonstrated that IL-17A co-localized with GFAP in peri-infarct regions. In addition, recombinant rIL-17A could aggravate ischemic injuries at dose-dependent manner in 1 h OGD/R 24 h-treated neurons companying with the increase of IL-17A receptor il-17RA mRNA (p < 0.001) and IL-17R protein levels. CONCLUSION We firstly reported astrocytic IL-17A peaks in CSF within 12 h and in serum at 3 d reperfusion after ischemic stroke. IL-17A may exaggerate neuronal injuries through its receptor IL-17R at early stage of ischemic stroke.
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Affiliation(s)
- Shujuan Li
- a Department of Neurology , Beijing Chao-Yang Hospital, Capital Medical University , Beijing , PR China
| | - Qingqing Dai
- b Department of Neurobiology and Center of Stroke , Beijing Institute for Brain Disorders, Capital Medical University , Beijing , PR China
| | - Jinling Yu
- b Department of Neurobiology and Center of Stroke , Beijing Institute for Brain Disorders, Capital Medical University , Beijing , PR China
| | - Ting Liu
- b Department of Neurobiology and Center of Stroke , Beijing Institute for Brain Disorders, Capital Medical University , Beijing , PR China
| | - Shuiqiao Liu
- b Department of Neurobiology and Center of Stroke , Beijing Institute for Brain Disorders, Capital Medical University , Beijing , PR China
| | - Longhui Ma
- b Department of Neurobiology and Center of Stroke , Beijing Institute for Brain Disorders, Capital Medical University , Beijing , PR China
| | - Ying Zhang
- b Department of Neurobiology and Center of Stroke , Beijing Institute for Brain Disorders, Capital Medical University , Beijing , PR China
| | - Song Han
- b Department of Neurobiology and Center of Stroke , Beijing Institute for Brain Disorders, Capital Medical University , Beijing , PR China
| | - Junfa Li
- b Department of Neurobiology and Center of Stroke , Beijing Institute for Brain Disorders, Capital Medical University , Beijing , PR China
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Yan X, Maixner DW, Li F, Weng HR. Chronic pain and impaired glial glutamate transporter function in lupus-prone mice are ameliorated by blocking macrophage colony-stimulating factor-1 receptors. J Neurochem 2017; 140:963-976. [PMID: 28072466 DOI: 10.1111/jnc.13952] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2016] [Revised: 12/22/2016] [Accepted: 01/05/2017] [Indexed: 12/20/2022]
Abstract
Systemic lupus erythematosus (SLE) is a multi-organ disease of unknown etiology in which the normal immune responses are directed against the body's own healthy tissues. Patients with SLE often suffer from chronic pain. Currently, no animal studies have been reported about the mechanisms underlying pain in SLE. In this study, the development of chronic pain in MRL lupus-prone (MRL/lpr) mice, a well-established lupus mouse model, was characterized for the first time. We found that female MRL/lpr mice developed thermal hyperalgesia at the age of 13 weeks, and mechanical allodynia at the age of 16 weeks. MRL/lpr mice with chronic pain had activation of microglia and astrocytes, over-expression of macrophage colony-stimulating factor-1 (CSF-1) and interleukin-1 beta (IL-1β), as well as suppression of glial glutamate transport function in the spinal cord. Intrathecal injection of either the CSF-1 blocker or IL-1 inhibitor attenuated thermal hyperalgesia in MRL/lpr mice. We provide evidence that the suppressed activity of glial glutamate transporters in the spinal dorsal horn in MRL/lpr mice is caused by activation of the CSF-1 and IL-1β signaling pathways. Our findings suggest that targeting the CSF-1 and IL-1β signaling pathways or the glial glutamate transporter in the spinal cord is an effective approach for the management of chronic pain caused by SLE.
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Affiliation(s)
- Xisheng Yan
- Department of Pharmaceutical and Biomedical Sciences, University of Georgia College of Pharmacy, Athens, Georgia, USA.,Department of Cardiovascular Medicine, The Third Hospital of Wuhan, Wuhan, Hubei, China
| | - Dylan W Maixner
- Department of Pharmaceutical and Biomedical Sciences, University of Georgia College of Pharmacy, Athens, Georgia, USA
| | - Fen Li
- Department of Neurology, The Third Hospital of Wuhan, Wuhan, Hubei, China
| | - Han-Rong Weng
- Department of Pharmaceutical and Biomedical Sciences, University of Georgia College of Pharmacy, Athens, Georgia, USA
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Sun C, Zhang J, Chen L, Liu T, Xu G, Li C, Yuan W, Xu H, Su Z. IL-17 contributed to the neuropathic pain following peripheral nerve injury by promoting astrocyte proliferation and secretion of proinflammatory cytokines. Mol Med Rep 2016; 15:89-96. [PMID: 27959414 PMCID: PMC5355678 DOI: 10.3892/mmr.2016.6018] [Citation(s) in RCA: 50] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2015] [Accepted: 10/11/2016] [Indexed: 01/05/2023] Open
Abstract
Central neuroinflammation is important in the pathophysiological processes of neuropathic pain following peripheral nerve injury. Recently, interleukin-17 (IL-17) has been detected in different inflammatory conditions of the central nervous system and contributes to neuropathic pain associated with multiple sclerosis, experimental autoimmune encephalomyelitis. The present study, based on the rat model of spinal nerve ligation, analyzed the infiltration of cluster of differentiation (CD)4+ T cells and the expression of IL-17 in the spinal cord during the maintenance phase of neuropathic pain, and investigated central inflammatory reaction and astrocyte activation. The results demonstrated that the infiltrated CD4+ T cells in the spinal cord increased in the rat model of spinal nerve ligation, and immunofluorescence staining demonstrated that the CD4+/IL-17+ cells were located at superficial laminae of spinal dorsal horn. This was accompanied by significant upregulation of IL-17. Furthermore, the mRNA expression levels of IL-1β and IL-6 were also significantly enhanced in model rats compared with the sham and control groups in the spinal dorsal horn. In vitro, the proliferation ability and secretion of proinflammatory cytokines notably increased in the IL-17-stimulated astrocytes. Results from the present study indicate that IL-17 may contribute to neuropathic pain by promoting the proliferation of astrocytes and secretion of proinflammatory cytokines in spinal nerve ligation-induced neuropathic pain.
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Affiliation(s)
- Caixia Sun
- Department of Anesthesiology, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, P.R. China
| | - Jin Zhang
- Department of Anesthesiology, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, P.R. China
| | - Li Chen
- Department of Anesthesiology, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, P.R. China
| | - Tanghua Liu
- Department of Anesthesiology, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, P.R. China
| | - Gaobing Xu
- Central Laboratory, The Affiliated People's Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, P.R. China
| | - Chunye Li
- Department of Anesthesiology, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, P.R. China
| | - Wen Yuan
- Department of Anesthesiology, The Affiliated Hospital of Jiangsu University, Zhenjiang, Jiangsu 212001, P.R. China
| | - Huaxi Xu
- Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
| | - Zhaoliang Su
- Department of Immunology, School of Medicine, Jiangsu University, Zhenjiang, Jiangsu 212013, P.R. China
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Spinal WNT pathway contributes to remifentanil induced hyperalgesia through regulating fractalkine and CX3CR1 in rats. Neurosci Lett 2016; 633:21-27. [DOI: 10.1016/j.neulet.2016.09.006] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Revised: 09/05/2016] [Accepted: 09/06/2016] [Indexed: 01/05/2023]
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Subramanian H, Viswanathan P, Cherkezyan L, Iyengar R, Rozhok S, Verleye M, Derbas J, Czarnecki J, Roy HK, Backman V. Procedures for risk-stratification of lung cancer using buccal nanocytology. BIOMEDICAL OPTICS EXPRESS 2016; 7:3795-3810. [PMID: 27699138 PMCID: PMC5030050 DOI: 10.1364/boe.7.003795] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 08/13/2016] [Accepted: 08/20/2016] [Indexed: 05/04/2023]
Abstract
Lung cancer is the leading cause of cancer deaths in the U.S. with survival dramatically depending on stage at diagnosis. We had earlier reported that nanocytology of buccal cells can accurately risk-stratify smokers for the presence of early and late-stage lung cancer. To translate the technique into clinical practice, standardization of operating procedures is necessary to consistently yield precise and repeatable results. Here, we develop and validate simple, robust, and easily implementable procedures for specimen collection, processing, etc. in addition to a commercially-viable instrument prototype. Results of this work enable translation of the technology from academic lab to physicians' office.
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Affiliation(s)
- H. Subramanian
- Northwestern University, Biomedical Engineering Department, Evanston, Illinois 60208, USA
- NanoCytomics LLC, Evanston, Illinois 60201, USA
| | - P. Viswanathan
- Northwestern University, Biomedical Engineering Department, Evanston, Illinois 60208, USA
| | - L. Cherkezyan
- Northwestern University, Biomedical Engineering Department, Evanston, Illinois 60208, USA
| | - R. Iyengar
- NanoCytomics LLC, Evanston, Illinois 60201, USA
| | - S. Rozhok
- NanoCytomics LLC, Evanston, Illinois 60201, USA
| | - M. Verleye
- NanoCytomics LLC, Evanston, Illinois 60201, USA
| | - J. Derbas
- NanoCytomics LLC, Evanston, Illinois 60201, USA
| | - J. Czarnecki
- Northwestern University, Biomedical Engineering Department, Evanston, Illinois 60208, USA
| | - H. K. Roy
- Boston University Medical Center, Boston, Massachusetts, 02118, USA
| | - V. Backman
- Northwestern University, Biomedical Engineering Department, Evanston, Illinois 60208, USA
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Takahashi Y, Matsudaira T, Nakano H, Nasu H, Ikeda H, Nakaoka K, Takayama R, Oota M. Immunological studies of cerebrospinal fluid from patients with CNS symptoms after human papillomavirus vaccination. J Neuroimmunol 2016; 298:71-8. [PMID: 27609278 DOI: 10.1016/j.jneuroim.2016.07.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2016] [Revised: 07/03/2016] [Accepted: 07/06/2016] [Indexed: 12/16/2022]
Abstract
In 32 patients with prolonged central nervous system symptoms after human papillomavirus (HPV) vaccination, we measured conventional and immunological markers in cerebrospinal fluid (CSF) and compared with the levels in disease controls. Our studies revealed significantly decreased chloride and neuron-specific enolase (NSE) levels in CSF of patients with CNS symptoms after HPV vaccination compared to disease controls. IL-4, IL-13, and CD4(+) T cells increased significantly in patients, and IL-17 increased significantly from 12 to 24months after symptom onset. Chemokines (IL-8 and MCP-1) were also elevated, but CD8(+) T cells, PDGF-bb and IL-12 were reduced. Antibodies to GluN2B-NT2, GluN2B-CT and GluN1-NT increased significantly. These results suggest biological, mainly immunological, changes in the CSF of patients after HPV vaccination.
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Affiliation(s)
- Yukitoshi Takahashi
- National Epilepsy Center, Shizuoka Institute of Epilepsy and Neurological Disorder, NHO, 886 Urushiyama, Aoi-ward, Shizuoka, Japan; Department of Pediatrics, Gifu University School of Medicine, Yanagido, Gifu, Japan.
| | - Takashi Matsudaira
- National Epilepsy Center, Shizuoka Institute of Epilepsy and Neurological Disorder, NHO, 886 Urushiyama, Aoi-ward, Shizuoka, Japan.
| | - Hitoshi Nakano
- National Epilepsy Center, Shizuoka Institute of Epilepsy and Neurological Disorder, NHO, 886 Urushiyama, Aoi-ward, Shizuoka, Japan.
| | - Hirosato Nasu
- National Epilepsy Center, Shizuoka Institute of Epilepsy and Neurological Disorder, NHO, 886 Urushiyama, Aoi-ward, Shizuoka, Japan.
| | - Hitoshi Ikeda
- National Epilepsy Center, Shizuoka Institute of Epilepsy and Neurological Disorder, NHO, 886 Urushiyama, Aoi-ward, Shizuoka, Japan.
| | - Kentaro Nakaoka
- National Epilepsy Center, Shizuoka Institute of Epilepsy and Neurological Disorder, NHO, 886 Urushiyama, Aoi-ward, Shizuoka, Japan.
| | - Rumiko Takayama
- Department of Pediatrics, Hokkaido Medical Center for Child Health and Rehabilitation, 1-1-240 Kanayama, Teine-ward, Sapporo, Japan.
| | - Masayasu Oota
- Department of Pediatrics, JA Toride Medical Center, 2-1-1, Hongo, Toride, Japan.
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46
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Lin Y, Zhang JC, Yao CY, Wu Y, Abdelgawad AF, Yao SL, Yuan SY. Critical role of astrocytic interleukin-17 A in post-stroke survival and neuronal differentiation of neural precursor cells in adult mice. Cell Death Dis 2016; 7:e2273. [PMID: 27336717 PMCID: PMC5143370 DOI: 10.1038/cddis.2015.284] [Citation(s) in RCA: 71] [Impact Index Per Article: 8.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2015] [Revised: 07/06/2015] [Accepted: 09/02/2015] [Indexed: 01/26/2023]
Abstract
The brain and the immune system interact in complex ways after ischemic stroke, and the long-term effects of immune response associated with stroke remain controversial. As a linkage between innate and adaptive immunity, interleukin-17 A (IL-17 A) secreted from gamma delta (γδ) T cells has detrimental roles in the pathogenesis of acute ischemic stroke. However, to date, the long-term actions of IL-17 A after stroke have not been investigated. Here, we found that IL-17 A showed two distinct peaks of expression in the ischemic hemisphere: the first occurring within 3 days and the second on day 28 after stroke. Our data also showed that astrocyte was the major cellular source of IL-17 A that maintained and augmented subventricular zone (SVZ) neural precursor cells (NPCs) survival, neuronal differentiation, and subsequent synaptogenesis and functional recovery after stroke. IL-17 A also promoted neuronal differentiation in cultured NPCs from the ischemic SVZ. Furthermore, our in vitro data revealed that in primary astrocyte cultures activated astrocytes released IL-17 A via p38 mitogen-activated protein kinase (MAPK). Culture media from reactive astrocytes increased neuronal differentiation of NSCs in vitro. Blockade of IL-17 A with neutralizing antibody prevented this effect. In addition, after screening for multiple signaling pathways, we revealed that the p38 MAPK/calpain 1 signaling pathway was involved in IL-17 A-mediated neurogenesis in vivo and in vitro. Thus, our results reveal a previously uncharacterized property of astrocytic IL-17 A in the maintenance and augment of survival and neuronal differentiation of NPCs, and subsequent synaptogenesis and spontaneous recovery after ischemic stroke.
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Affiliation(s)
- Y Lin
- Department of Anesthesia, Institute of Anesthesia and Critical Care, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.,Department of Critical Care Medicine, Institute of Anesthesia and Critical Care, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - J-C Zhang
- Department of Anesthesia, Institute of Anesthesia and Critical Care, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.,Department of Critical Care Medicine, Institute of Anesthesia and Critical Care, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - C-Y Yao
- Department of Neurology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Y Wu
- Department of Dermatology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - A F Abdelgawad
- Department of Anesthesia, Institute of Anesthesia and Critical Care, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.,Department of Anesthesia, Faculty of Medicine, Benha University, Benha, Egypt
| | - S-L Yao
- Department of Anesthesia, Institute of Anesthesia and Critical Care, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.,Department of Critical Care Medicine, Institute of Anesthesia and Critical Care, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - S-Y Yuan
- Department of Anesthesia, Institute of Anesthesia and Critical Care, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.,Department of Critical Care Medicine, Institute of Anesthesia and Critical Care, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
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47
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Peripheral Brain Derived Neurotrophic Factor Precursor Regulates Pain as an Inflammatory Mediator. Sci Rep 2016; 6:27171. [PMID: 27251195 PMCID: PMC4890020 DOI: 10.1038/srep27171] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2015] [Accepted: 05/13/2016] [Indexed: 02/08/2023] Open
Abstract
The precursor of brain derived neurotrophic factor (proBDNF), the unprocessed BDNF gene product, binds to its receptors and exerts the opposing biologic functions of mature BDNF. proBDNF is expressed in the peripheral tissues but the functions of peripheral proBDNF remain elusive. Here we showed that proBDNF and its predominant receptor, p75 pan-neurotrophin receptor were upregulated in the nerve fibers and inflammatory cells in the local tissue in inflammatory pain. Neutralization of proBDNF by polyclonal antibody attenuated pain in different models of inflammatory pain. Unilateral intra-plantar supplementation of proBDNF by injecting exogenous proBDNF or ectopic overexpression resulted in pain hypersensitivity and induced spinal phosphorylated extracellular signal-regulated kinase activation. Exogenous proBDNF injection induced the infiltration of inflammatory cells and the activation of proinflammatory cytokines, suggesting that inflammatory reaction contributed to the pro-algesic effect of proBDNF. Finally, we generated monoclonal anti-proBDNF antibody that could biologically block proBDNF. Administration of monoclonal Ab-proBDNF attenuated various types of inflammatory pain and surgical pain. Thus, peripheral proBDNF is a potential pain mediator and anti-proBDNF pretreatment may alleviate the development of inflammatory pain.
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48
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Wang J, Zhang R, Dong C, Jiao L, Xu L, Liu J, Wang Z, Lao L. Transient Receptor Potential Channel and Interleukin-17A Involvement in LTTL Gel Inhibition of Bone Cancer Pain in a Rat Model. Integr Cancer Ther 2016; 14:381-93. [PMID: 26100378 DOI: 10.1177/1534735415580677] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
Cancer pain management is a challenge for which Chinese herbal medicine might be useful. To study the spinal mechanisms of the Chinese medicated gel Long-Teng-Tong-Luo (LTTL), a 7-herb compound, on bone cancer pain, a bone cancer pain model was made by inoculating the tibias of female rats with Walker 256 cells. LTTL gel or inert gel, 0.5 g/cm(2)/d, was applied to the skin of tumor-bearing tibias for 21 days beginning a day after the inoculation. Mechanical threshold and paw withdrawal latency to thermal stimulation was measured. Transient receptor potential (TRP) cation channels in lumbar dorsal root ganglia (DRG) were immunostained and counted, and lumbar spinal cord interleukin-17A (IL-17A) was measured with real-time polymerase chain reaction and enzyme-linked immunosorbent assay. TRP antagonists and interleukin (IL)-17A antibodies were intrathecally administered to determine their effects on bone cancer pain. The gel significantly (P < .05) alleviated cancer-induced mechanical allodynia and thermal hyperalgesia and inhibited cancer-enhanced expression of IL-17A in spinal astrocytes and the TRP subfamily members V1, A1, and V4 in lumbar DRG. Intrathecal TRP antagonists at 10 µg significantly (P < .05) attenuated mechanical allodynia, thermal hyperalgesia, and IL-17A expression, indicating that TRP channels facilitate spinal IL-17 expression and cancer pain. IL-17A antibodies inhibited cancer pain, suggesting that IL-17A promotes such pain. The data show that LTTL gel inhibits cancer pain, and this might be accounted for by the decrease in expression of DRG TRP channels and spinal astrocyte IL-17A.
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Affiliation(s)
- Juyong Wang
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ruixin Zhang
- Center for Integrative Medicine, School of Medicine, University of Maryland, Baltimore, MD, USA
| | - Changsheng Dong
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lijing Jiao
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Ling Xu
- Longhua Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Jiyong Liu
- The Ministry of Education Key Laboratory for Standardization of Chinese Medicines, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Zhengtao Wang
- The Ministry of Education Key Laboratory for Standardization of Chinese Medicines, Shanghai University of Traditional Chinese Medicine, Shanghai, China
| | - Lixing Lao
- Center for Integrative Medicine, School of Medicine, University of Maryland, Baltimore, MD, USA
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49
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Tsilioni I, Russell IJ, Stewart JM, Gleason RM, Theoharides TC. Neuropeptides CRH, SP, HK-1, and Inflammatory Cytokines IL-6 and TNF Are Increased in Serum of Patients with Fibromyalgia Syndrome, Implicating Mast Cells. J Pharmacol Exp Ther 2016; 356:664-72. [PMID: 26763911 DOI: 10.1124/jpet.115.230060] [Citation(s) in RCA: 74] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2015] [Accepted: 12/30/2015] [Indexed: 12/30/2022] Open
Abstract
Fibromyalgia syndrome (FMS) is a chronic, idiopathic condition of widespread musculoskeletal pain affecting more women than men. Even though clinical studies have provided evidence of altered central pain pathways, the lack of definitive pathogenesis or reliable objective markers has hampered development of effective treatments. Here we report that the neuropeptides corticotropin-releasing hormone (CRH), substance P (SP), and SP-structurally-related hemokinin-1 (HK-1) were significantly (P = 0.026, P < 0.0001, and P = 0.002, respectively) elevated (0.82 ± 0.57 ng/ml, 0.39 ± 0.18 ng/ml, and 7.98 ± 3.12 ng/ml, respectively) in the serum of patients with FMS compared with healthy controls (0.49 ± 0.26 ng/ml, 0.12 ± 0.1 ng/ml, and 5.71 ± 1.08 ng/ml, respectively). Moreover, SP and HK-1 levels were positively correlated (Pearson r = 0.45, P = 0.002) in FMS. The serum concentrations of the inflammatory cytokines interleukin (IL)-6 and tumor necrosis factor (TNF) were also significantly (P = 0.029 and P = 0.006, respectively) higher (2.97 ± 2.35 pg/ml and 0.92 ± 0.31 pg/ml, respectively) in the FMS group compared with healthy subjects (1.79 ± 0.62 pg/ml and 0.69 ± 0.16 pg/ml, respectively). In contrast, serum IL-31 and IL-33 levels were significantly lower (P = 0.0001 and P = 0.044, respectively) in the FMS patients (849.5 ± 1005 pg/ml and 923.2 ± 1284 pg/ml, respectively) in comparison with healthy controls (1281 ± 806.4 pg/ml and 3149 ± 4073 pg/ml, respectively). FMS serum levels of neurotensin were not different from controls. We had previously shown that CRH and SP stimulate IL-6 and TNF release from mast cells (MCs). Our current results indicate that neuropeptides could stimulate MCs to secrete inflammatory cytokines that contribute importantly to the symptoms of FMS. Treatment directed at preventing the secretion or antagonizing these elevated neuroimmune markers, both centrally and peripherally, may prove to be useful in the management of FMS.
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Affiliation(s)
- Irene Tsilioni
- Immunopharmacology and Drug Discovery Laboratory, Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine (I.T., J.M.S., T.C.T.); Department of Internal Medicine, Department of Psychiatry, and Sackler School of Graduate Biomedical Sciences, Tufts University, and Tufts Medical Center, Boston, Massachusetts (T.C.T.); Fibromyalgia Research and Consulting, Arthritis and Osteoporosis Center of South Texas, San Antonio, Texas (I.J.R.); National Fibromyalgia and Chronic Pain Association, Logan, Utah (R.M.G.)
| | - Irwin J Russell
- Immunopharmacology and Drug Discovery Laboratory, Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine (I.T., J.M.S., T.C.T.); Department of Internal Medicine, Department of Psychiatry, and Sackler School of Graduate Biomedical Sciences, Tufts University, and Tufts Medical Center, Boston, Massachusetts (T.C.T.); Fibromyalgia Research and Consulting, Arthritis and Osteoporosis Center of South Texas, San Antonio, Texas (I.J.R.); National Fibromyalgia and Chronic Pain Association, Logan, Utah (R.M.G.)
| | - Julia M Stewart
- Immunopharmacology and Drug Discovery Laboratory, Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine (I.T., J.M.S., T.C.T.); Department of Internal Medicine, Department of Psychiatry, and Sackler School of Graduate Biomedical Sciences, Tufts University, and Tufts Medical Center, Boston, Massachusetts (T.C.T.); Fibromyalgia Research and Consulting, Arthritis and Osteoporosis Center of South Texas, San Antonio, Texas (I.J.R.); National Fibromyalgia and Chronic Pain Association, Logan, Utah (R.M.G.)
| | - Rae M Gleason
- Immunopharmacology and Drug Discovery Laboratory, Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine (I.T., J.M.S., T.C.T.); Department of Internal Medicine, Department of Psychiatry, and Sackler School of Graduate Biomedical Sciences, Tufts University, and Tufts Medical Center, Boston, Massachusetts (T.C.T.); Fibromyalgia Research and Consulting, Arthritis and Osteoporosis Center of South Texas, San Antonio, Texas (I.J.R.); National Fibromyalgia and Chronic Pain Association, Logan, Utah (R.M.G.)
| | - Theoharis C Theoharides
- Immunopharmacology and Drug Discovery Laboratory, Department of Integrative Physiology and Pathobiology, Tufts University School of Medicine (I.T., J.M.S., T.C.T.); Department of Internal Medicine, Department of Psychiatry, and Sackler School of Graduate Biomedical Sciences, Tufts University, and Tufts Medical Center, Boston, Massachusetts (T.C.T.); Fibromyalgia Research and Consulting, Arthritis and Osteoporosis Center of South Texas, San Antonio, Texas (I.J.R.); National Fibromyalgia and Chronic Pain Association, Logan, Utah (R.M.G.)
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50
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Activity-triggered tetrapartite neuron-glial interactions following peripheral injury. Curr Opin Pharmacol 2015; 26:16-25. [PMID: 26431645 DOI: 10.1016/j.coph.2015.09.006] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 09/14/2015] [Accepted: 09/16/2015] [Indexed: 12/11/2022]
Abstract
Recent studies continue to support the proposition that non-neuronal components of the nervous system, mainly glial cells and associated chemical mediators, contribute to the development of neuronal hyperexcitability that underlies persistent pain conditions. In the event of peripheral injury, enhanced or abnormal nerve input is likely the most efficient way to activate simultaneously central neurons and glia. Injury induces phenotypic changes in glia and triggers signaling cascades that engage reciprocal interactions between presynaptic terminals, postsynaptic neurons, microglia and astrocytes. While some responses to peripheral injury may help the nervous system to adapt positively to counter the disastrous effect of injury, the net effect often leads to long-lasting sensitization of pain transmission pathways and chronic pain.
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