1
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Proinflammatory cytokines and their receptors as druggable targets to alleviate pathological pain. Pain 2022; 163:S79-S98. [DOI: 10.1097/j.pain.0000000000002737] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Accepted: 07/14/2022] [Indexed: 02/07/2023]
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2
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Sevastre AS, Manea EV, Popescu OS, Tache DE, Danoiu S, Sfredel V, Tataranu LG, Dricu A. Intracellular Pathways and Mechanisms of Colored Secondary Metabolites in Cancer Therapy. Int J Mol Sci 2022; 23:ijms23179943. [PMID: 36077338 PMCID: PMC9456420 DOI: 10.3390/ijms23179943] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 08/27/2022] [Accepted: 08/29/2022] [Indexed: 12/03/2022] Open
Abstract
Despite the great advancements made in cancer treatment, there are still many unsatisfied aspects, such as the wide palette of side effects and the drug resistance. There is an obvious increasing scientific attention towards nature and what it can offer the human race. Natural products can be used to treat many diseases, of which some plant products are currently used to treat cancer. Plants produce secondary metabolites for their signaling mechanisms and natural defense. A variety of plant-derived products have shown promising anticancer properties in vitro and in vivo. Rather than recreating the natural production environment, ongoing studies are currently setting various strategies to significantly manipulate the quantity of anticancer molecules in plants. This review focuses on the recently studied secondary metabolite agents that have shown promising anticancer activity, outlining their potential mechanisms of action and pathways.
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Affiliation(s)
- Ani-Simona Sevastre
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Medicine and Pharmacy of Craiova, Str. Petru Rares nr. 2-4, 200349 Craiova, Romania
| | - Elena Victoria Manea
- Department of Biochemistry, Faculty of Medicine, University of Medicine and Pharmacy of Craiova, Str. Petru Rares nr. 2-4, 200349 Craiova, Romania
| | - Oana Stefana Popescu
- Department of Biochemistry, Faculty of Medicine, University of Medicine and Pharmacy of Craiova, Str. Petru Rares nr. 2-4, 200349 Craiova, Romania
| | - Daniela Elise Tache
- Department of Biochemistry, Faculty of Medicine, University of Medicine and Pharmacy of Craiova, Str. Petru Rares nr. 2-4, 200349 Craiova, Romania
| | - Suzana Danoiu
- Department of Pathophysiology, Faculty of Medicine, University of Medicine and Pharmacy of Craiova, Str. Petru Rares nr. 2-4, 200349 Craiova, Romania
| | - Veronica Sfredel
- Department of Physiology, Faculty of Medicine, University of Medicine and Pharmacy of Craiova, Str. Petru Rares nr. 2-4, 200349 Craiova, Romania
| | - Ligia Gabriela Tataranu
- Neurosurgical Department, Clinical Hospital “Bagdasar-Arseni”, 041915 Bucharest, Romania
- Correspondence: ; Tel.: +40-21-334-30-25
| | - Anica Dricu
- Department of Biochemistry, Faculty of Medicine, University of Medicine and Pharmacy of Craiova, Str. Petru Rares nr. 2-4, 200349 Craiova, Romania
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3
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Li HN, Yang QQ, Wang WT, Tian X, Feng F, Zhang ST, Xia YT, Wang JX, Zou YW, Wang JY, Zeng XY. Red nucleus IL-33 facilitates the early development of mononeuropathic pain in male rats by inducing TNF-α through activating ERK, p38 MAPK, and JAK2/STAT3. J Neuroinflammation 2021; 18:150. [PMID: 34225736 PMCID: PMC8258957 DOI: 10.1186/s12974-021-02198-9] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Accepted: 06/17/2021] [Indexed: 01/12/2023] Open
Abstract
Background Our recent studies have identified that the red nucleus (RN) dual-directionally modulates the development and maintenance of mononeuropathic pain through secreting proinflammatory and anti-inflammatory cytokines. Here, we further explored the action of red nucleus IL-33 in the early development of mononeuropathic pain. Methods In this study, male rats with spared nerve injury (SNI) were used as mononeuropathic pain model. Immunohistochemistry, Western blotting, and behavioral testing were used to assess the expressions, cellular distributions, and actions of red nucleus IL-33 and its related downstream signaling molecules. Results IL-33 and its receptor ST2 were constitutively expressed in the RN in naive rats. After SNI, both IL-33 and ST2 were upregulated significantly at 3 days and peaked at 1 week post-injury, especially in RN neurons, oligodendrocytes, and microglia. Blockade of red nucleus IL-33 with anti-IL-33 neutralizing antibody attenuated SNI-induced mononeuropathic pain, while intrarubral administration of exogenous IL-33 evoked mechanical hypersensitivity in naive rats. Red nucleus IL-33 generated an algesic effect in the early development of SNI-induced mononeuropathic pain through activating NF-κB, ERK, p38 MAPK, and JAK2/STAT3, suppression of NF-κB, ERK, p38 MAPK, and JAK2/STAT3 with corresponding inhibitors markedly attenuated SNI-induced mononeuropathic pain or IL-33-evoked mechanical hypersensitivity in naive rats. Red nucleus IL-33 contributed to SNI-induced mononeuropathic pain by stimulating TNF-α expression, which could be abolished by administration of inhibitors against ERK, p38 MAPK, and JAK2/STAT3, but not NF-κB. Conclusions These results suggest that red nucleus IL-33 facilitates the early development of mononeuropathic pain through activating NF-κB, ERK, p38 MAPK, and JAK2/STAT3. IL-33 mediates algesic effect partly by inducing TNF-α through activating ERK, p38 MAPK and JAK2/STAT3. Supplementary Information The online version contains supplementary material available at 10.1186/s12974-021-02198-9.
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Affiliation(s)
- Hao-Nan Li
- Department of Laboratory Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China.,Department of Pathogenic Biology and Immunology, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, China.,Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education of China, Xi'an, China
| | - Qing-Qing Yang
- Department of Pathogenic Biology and Immunology, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, China.,Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education of China, Xi'an, China
| | - Wen-Tao Wang
- Biological Science BSc, Department of Biological Sciences, Xi'an Jiaotong-Liverpool University, Suzhou, 215123, Jiangsu, China.,Biochemistry BSc, Faculty of Health and Life Sciences, University of Liverpool, Liverpool, L69 3BX, UK
| | - Xue Tian
- Department of Pathogenic Biology and Immunology, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, China.,Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education of China, Xi'an, China
| | - Fan Feng
- Department of Pathogenic Biology and Immunology, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, China.,Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education of China, Xi'an, China
| | - Shu-Ting Zhang
- Department of Pathogenic Biology and Immunology, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, China.,Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education of China, Xi'an, China
| | - Yu-Tong Xia
- Department of Pathogenic Biology and Immunology, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, China.,Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education of China, Xi'an, China
| | - Jia-Xue Wang
- Department of Pathogenic Biology and Immunology, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, China.,Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education of China, Xi'an, China
| | - Yuan-Wu Zou
- Department of Pathogenic Biology and Immunology, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, China.,Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education of China, Xi'an, China
| | - Jun-Yang Wang
- Department of Pathogenic Biology and Immunology, Xi'an Jiaotong University Health Science Center, Xi'an, 710061, Shaanxi, China. .,Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education of China, Xi'an, China.
| | - Xiao-Yan Zeng
- Department of Laboratory Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, 710061, Shaanxi, China. .,Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education of China, Xi'an, China.
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4
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WeiWei Y, WenDi F, Mengru C, Tuo Y, Chen G. The cellular mechanism by which the rostral ventromedial medulla acts on the spinal cord during chronic pain. Rev Neurosci 2021; 32:545-558. [PMID: 33565739 DOI: 10.1515/revneuro-2020-0121] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2020] [Accepted: 12/18/2020] [Indexed: 11/15/2022]
Abstract
Clinical therapies for chronic pain are limited. While targeted drugs are promising therapies for chronic pain, they exhibit insufficient efficacy and poor targeting. The occurrence of chronic pain partly results from central changes caused by alterations in neurons in the rostral ventromedial medulla (RVM) in the brainstem regulatory pathway. The RVM, which plays a key role in the descending pain control pathway, greatly contributes to the development and maintenance of pain. However, the exact roles of the RVM in chronic pain remain unclear, making it difficult to develop new drugs targeting the RVM and related pathways. Here, we first discuss the roles of the RVM and related circuits in chronic pain. Then, we analyze synaptic transmission between RVM neurons and spinal cord neurons, specifically focusing on the release of neurotransmitters, to explore the cellular mechanisms by which the RVM regulates chronic pain. Finally, we propose some ideas for the development of drugs targeting the RVM.
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Affiliation(s)
- Yu WeiWei
- Key Laboratory of Neuroregeneration of Jiangsu and the Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong226001, China
| | - Fei WenDi
- Key Laboratory of Neuroregeneration of Jiangsu and the Ministry of Education, Co-innovation Center of Neuroregeneration, Nantong University, Nantong226001, China
| | - Cui Mengru
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong226001, China
| | - Yang Tuo
- Department of Hand Surgery, China-Japan Union Hospital of Jilin University, Changchun130033, China
| | - Gang Chen
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong226001, China.,Department of Tissue and Embryology, Medical School of Nantong University, Co-innovation Center of Neuroregeneration, Nantong University, Nantong226001, China
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5
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Jin Q, Li P, Yuan K, Zhao F, Zhu X, Zhang P, Huang Z. Extracellular vesicles derived from human dental pulp stem cells promote osteogenesis of adipose-derived stem cells via the MAPK pathway. J Tissue Eng 2020; 11:2041731420975569. [PMID: 33312494 PMCID: PMC7716067 DOI: 10.1177/2041731420975569] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2020] [Accepted: 11/02/2020] [Indexed: 12/17/2022] Open
Abstract
Recent studies have shown that co-culture systems play an important role in bone tissue engineering. In this study, human dental pulp stem cells (hDPSCs) were co-cultured with human adipose-derived stem cells (hADSCs), and osteoblastic phenotypes were found to be enhanced in co-cultures compared with monocultures of hDPSCs or hADSCs. Furthermore, GW4869, an inhibitor of extracellular vesicle (EV) formation, suppressed the mineralization of co-cultured cells. Studies indicate that the therapeutic potential of DPSCs is realized through paracrine action, in which EVs play an important role. To study their role, we successfully obtained and identified hDPSC-derived extracellular vesicles (hDPSC-EVs), and further investigated their effects on hADSCs and the underlying mechanism. hADSCs were stimulated with hDPSC-EVs, which were found to promote the migration and mineralization of hADSCs. Moreover, hDPSC-EVs promoted osteogenic differentiation by enhancing the phosphorylation of ERK 1/2 and JNK in hADSCs. To investigate the specific proteins in EVs that might play a role in hADSC osteogenic differentiation, we performed proteomic analysis of hDPSC-EVs. We determined the top 30 enriched pathways, which notably included the insulin signaling pathway. The number of genes enriched in the insulin signaling pathway was the largest, in addition to the “protein processing in endoplasmic reticulum” term. The MAPK cascade is a typical downstream pathway mediating insulin signaling. To further study the effects of hDPSC-EVs on maxillofacial bone regeneration, we used hDPSC-EVs as a cell-free biomaterial in a model of mandibular defects in rats. To assess the therapeutic potential of EVs, we analyzed their proteome. Animal experiments demonstrated that hDPSC-EVs promoted the regeneration of bone defects. Overall, these results highlight the potential of hDPSC-EVs to induce lineage specific differentiation of hADSCs. The results also indicated the importance of considering hDPSC-EVs as biomimetic materials for clinical translation of treatments for oral maxillofacial defects.
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Affiliation(s)
- Qiaoqiao Jin
- Department of Endodontics, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Peilun Li
- Department of Endodontics, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Keyong Yuan
- Department of Endodontics, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Fen Zhao
- Department of Endodontics, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Xiaohan Zhu
- Department of Endodontics, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Pengfei Zhang
- Department of Endodontics, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
| | - Zhengwei Huang
- Department of Endodontics, Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China.,National Clinical Research Center for Oral Diseases, Shanghai Key Laboratory of Stomatology & Shanghai Research Institute of Stomatology, Shanghai, China
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6
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Red nucleus structure and function: from anatomy to clinical neurosciences. Brain Struct Funct 2020; 226:69-91. [PMID: 33180142 PMCID: PMC7817566 DOI: 10.1007/s00429-020-02171-x] [Citation(s) in RCA: 44] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2020] [Accepted: 10/24/2020] [Indexed: 12/19/2022]
Abstract
The red nucleus (RN) is a large subcortical structure located in the ventral midbrain. Although it originated as a primitive relay between the cerebellum and the spinal cord, during its phylogenesis the RN shows a progressive segregation between a magnocellular part, involved in the rubrospinal system, and a parvocellular part, involved in the olivocerebellar system. Despite exhibiting distinct evolutionary trajectories, these two regions are strictly tied together and play a prominent role in motor and non-motor behavior in different animal species. However, little is known about their function in the human brain. This lack of knowledge may have been conditioned both by the notable differences between human and non-human RN and by inherent difficulties in studying this structure directly in the human brain, leading to a general decrease of interest in the last decades. In the present review, we identify the crucial issues in the current knowledge and summarize the results of several decades of research about the RN, ranging from animal models to human diseases. Connecting the dots between morphology, experimental physiology and neuroimaging, we try to draw a comprehensive overview on RN functional anatomy and bridge the gap between basic and translational research.
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7
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Antagonism of Protease-Activated Receptor 4 Protects Against Traumatic Brain Injury by Suppressing Neuroinflammation via Inhibition of Tab2/NF-κB Signaling. Neurosci Bull 2020; 37:242-254. [PMID: 33111257 DOI: 10.1007/s12264-020-00601-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Accepted: 07/19/2020] [Indexed: 12/23/2022] Open
Abstract
Traumatic brain injury (TBI) triggers the activation of the endogenous coagulation mechanism, and a large amount of thrombin is released to curb uncontrollable bleeding through thrombin receptors, also known as protease-activated receptors (PARs). However, thrombin is one of the most critical factors in secondary brain injury. Thus, the PARs may be effective targets against hemorrhagic brain injury. Since the PAR1 antagonist has an increased bleeding risk in clinical practice, PAR4 blockade has been suggested as a more promising treatment. Here, we explored the expression pattern of PAR4 in the brain of mice after TBI, and explored the effect and possible mechanism of BMS-986120 (BMS), a novel selective and reversible PAR4 antagonist on secondary brain injury. Treatment with BMS protected against TBI in mice. mRNA-seq analysis, Western blot, and qRT-PCR verification in vitro showed that BMS significantly inhibited thrombin-induced inflammation in astrocytes, and suggested that the Tab2/ERK/NF-κB signaling pathway plays a key role in this process. Our findings provide reliable evidence that blocking PAR4 is a safe and effective intervention for TBI, and suggest that BMS has a potential clinical application in the management of TBI.
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8
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Mai L, Zhu X, Huang F, He H, Fan W. p38 mitogen-activated protein kinase and pain. Life Sci 2020; 256:117885. [PMID: 32485175 DOI: 10.1016/j.lfs.2020.117885] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 05/23/2020] [Accepted: 05/28/2020] [Indexed: 12/18/2022]
Abstract
Inflammatory and neuropathic pain is initiated by tissue inflammation and nerve injury, respectively. Both are characterized by increased activity in the peripheral and central nervous system, where multiple inflammatory cytokines and other active molecules activate different signaling pathways that involve in the development and/or maintenance of pain. P38 mitogen-activated protein kinase (MAPK) is one member of the MAPK family, which is activated in neurons and glia and contributes importantly to inflammatory and neuropathic pain. The aim of this review is to summarize the latest advances made about the implication of p38 MAPK signaling cascade in pain. It can deepen our understanding of the molecular mechanisms of pain and may help to offer new targets for pain treatment.
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Affiliation(s)
- Lijia Mai
- Department of Anesthesiology, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510080, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510080, China
| | - Xiao Zhu
- The Marine Biomedical Research Institute, Guangdong Medical University, Zhanjiang 524023, China
| | - Fang Huang
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510080, China
| | - Hongwen He
- Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510080, China
| | - Wenguo Fan
- Department of Anesthesiology, Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-sen University, Guangzhou 510080, China; Guangdong Provincial Key Laboratory of Stomatology, Guangzhou 510080, China.
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9
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Emery MA, Eitan S. Drug-specific differences in the ability of opioids to manage burn pain. Burns 2019; 46:503-513. [PMID: 31859093 DOI: 10.1016/j.burns.2019.03.028] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2018] [Revised: 03/04/2019] [Accepted: 03/30/2019] [Indexed: 12/17/2022]
Abstract
Burn injury pain is a significant public health problem. Burn injury treatment has improved tremendously in recent decades. However, an unintended consequence is that a larger number of patients now survive more severe injuries, and face intense pain that is very hard to treat. Although many efforts have been made to find alternative treatments, opioids remain the most effective medication available. Burn patients are frequently prescribed opioids in doses and durations that are significantly higher and longer than standard analgesic dosing guidelines. Despite this, many continue to experience unrelieved pain. They are also placed at a higher risk for developing dependence and opioid use disorder. Burn injury profoundly alters the functional state of the immune system. It also alters the expression levels of receptor, effector, and signaling molecules within the spinal cord's dorsal horn. These alterations could explain the reduced potency of opioids. However, recent studies demonstrate that different opioids signal preferentially via differential signaling pathways. This ligand-specific signaling by different opioids implies that burn injury may reduce the antinociceptive potency of opioids to different degrees, in a drug-specific manner. Indeed, recent findings hint at drug-specific differences in the ability of opioids to manage burn pain early after injury, as well as differences in their ability to prevent or treat the development of chronic and neuropathic pain. Here we review the current state of opioid treatment, as well as new findings that could potentially lead to opioid-based pain management strategies that may be significantly more effective than the current solutions.
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Affiliation(s)
- Michael A Emery
- Behavioral and Cellular Neuroscience, Department of Psychological and Brain Sciences, Texas A&M University, 4235 TAMU, College Station, TX 77843, USA; Interdisciplinary Program in Neuroscience, Texas A&M Institute for Neuroscience (TAMIN), USA
| | - Shoshana Eitan
- Behavioral and Cellular Neuroscience, Department of Psychological and Brain Sciences, Texas A&M University, 4235 TAMU, College Station, TX 77843, USA; Interdisciplinary Program in Neuroscience, Texas A&M Institute for Neuroscience (TAMIN), USA.
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10
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Liu F, Zhang YY, Song N, Lin J, Liu MK, Huang CL, Zhou C, Wang H, Wang M, Shen JF. GABA B receptor activation attenuates inflammatory orofacial pain by modulating interleukin-1β in satellite glial cells: Role of NF-κB and MAPK signaling pathways. Brain Res Bull 2019; 149:240-250. [PMID: 31034945 DOI: 10.1016/j.brainresbull.2019.04.018] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/22/2018] [Revised: 03/26/2019] [Accepted: 04/22/2019] [Indexed: 02/05/2023]
Abstract
Orofacial inflammation could activate satellite glial cells (SGCs) in the trigeminal ganglion (TG) to produce interleukin 1β (IL-1β) which plays crucial roles in the development of inflammatory pain. Recent studies have shown that gamma-amino butyric acid-B (GABAB) receptor could modulate the expression of inflammatory cytokines in microglia and astrocytes in the spinal cord. The objective of this study was to investigate whether GABAB receptors in TG SGCs attenuate inflammatory facial pain via mediating IL-1β following inflammation and its mechanisms. Complete Freund's adjuvant (CFA) was injected into the whisker pad of rats to induce inflammation in vivo. Lipopolysaccharide (LPS) was added to culture medium to activate SGCs in vitro. Behavioral measures showed that microinjection of baclofen (a selective GABAB receptor agonist) into the TG ameliorated the mechanical allodynia of CFA-treated rats. Interestingly, baclofen pretreatment inhibited SGC activation and IL-1β production, however, preserved the decreased expression of GABAB receptors in SGCs activated by CFA in vivo and LPS in vitro. In addition, baclofen suppressed the increased expression of p-NF- κ B p65, p-I κ Bα, and p-p38 MAPK, while reversed the decreased production of I κ Bα, and further enhanced the increased expression of p-ERK(1/2) in LPS-treated SGCs in vitro. Finally, those effects of baclofen were abolished by saclofen (a specific GABAB receptor antagonist) co-administration. Altogether, these results demonstrated for the first time that activation of GABAB receptor might inhibit IL-1β production by suppressing NF- κ B and p38 MAPK signaling pathway activation and restore GABAB receptor expression in SGCs to attenuate inflammatory facial pain.
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Affiliation(s)
- Fei Liu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan Province, 610041, China
| | - Yan-Yan Zhang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan Province, 610041, China
| | - Ning Song
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan Province, 610041, China
| | - Jiu Lin
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan Province, 610041, China
| | - Meng-Ke Liu
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan Province, 610041, China
| | - Chao-Lan Huang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan Province, 610041, China
| | - Cheng Zhou
- Laboratory of Anesthesia & Critical Care Medicine, Translational Neuroscience Center, West China Hospital of Sichuan University, Chengdu, Sichuan Province, 610041, China
| | - Hang Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan Province, 610041, China
| | - Min Wang
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan Province, 610041, China
| | - Jie-Fei Shen
- State Key Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases & Dept. of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan Province, 610041, China.
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11
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Guo YJ, Li HN, Ding CP, Han SP, Wang JY. Red nucleus interleukin-1β evokes tactile allodynia through activation of JAK/STAT3 and JNK signaling pathways. J Neurosci Res 2018; 96:1847-1861. [PMID: 30216497 DOI: 10.1002/jnr.24324] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2018] [Revised: 08/16/2018] [Accepted: 08/20/2018] [Indexed: 01/10/2023]
Abstract
We previously reported that interleukin-1β (IL-1β) in the red nucleus (RN) is involved in pain modulation and exerts a facilitatory effect in the development of neuropathic pain. Here, we explored the actions of signaling pathways, including the Janus kinase/signal transducer and activator of transcription 3 (JAK/STAT3), c-Jun N-terminal kinase (JNK), extracellular signal-regulated kinase (ERK), p38 mitogen-activated protein kinase (p38 MAPK) and nuclear factor-κB (NF-κB) pathways, on RN IL-1β-mediated pain modulation. After a single dose of recombinant rat IL-1β (rrIL-1β, 10 ng) injected into the RN in normal rats, a tactile allodynia was evoked in the contralateral but not ipsilateral hindpaw, commencing 75 min and peaking 120 min postinjection. Up-regulated protein levels of phospho-STAT3 (p-STAT3) and p-JNK were observed in the RN 120 min after rrIL-1β injection, the increases of p-STAT3 and p-JNK were blocked by anti-IL-1β antibody. However, the expression levels of p-ERK, p-p38 MAPK, and NF-κB in the RN were not affected by rrIL-1β injection. RN neurons and astrocytes contributed to IL-1β-evoked up-regulation of p-STAT3 and p-JNK. Further studies demonstrated that injection of the JAK2 antagonist AG490 or JNK antagonist SP600125 into the RN 30 min prior to the administration of rrIL-1β could completely prevent IL-1β-evoked tactile allodynia, while injection of the ERK antagonist PD98059, p38 MAPK antagonist SB203580, or NF-κB antagonist PDTC did not affect IL-1β-evoked tactile allodynia. In conclusion, our data provide additional evidence that RN IL-1β is involved in pain modulation, and that it exerts a facilitatory effect by activating the JAK/STAT3 and JNK signaling pathways.
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Affiliation(s)
- Yi-Jie Guo
- Department of Pathogenic Biology and Immunology, Xi'an Jiaotong University Health Science Center, Xi'an, China
- Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education of China, Xi'an, China
| | - Hao-Nan Li
- Department of Pathogenic Biology and Immunology, Xi'an Jiaotong University Health Science Center, Xi'an, China
- Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education of China, Xi'an, China
| | - Cui-Ping Ding
- Department of Pathogenic Biology and Immunology, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Shui-Ping Han
- Department of Pathology, Xi'an Jiaotong University Health Science Center, Xi'an, China
| | - Jun-Yang Wang
- Department of Pathogenic Biology and Immunology, Xi'an Jiaotong University Health Science Center, Xi'an, China
- Key Laboratory of Environment and Genes Related to Diseases (Xi'an Jiaotong University), Ministry of Education of China, Xi'an, China
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Li Y, Sui X, Hu X, Hu Z. Overexpression of KLF5 inhibits puromycin‑induced apoptosis of podocytes. Mol Med Rep 2018; 18:3843-3849. [PMID: 30106142 PMCID: PMC6131625 DOI: 10.3892/mmr.2018.9366] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 06/28/2018] [Indexed: 02/01/2023] Open
Abstract
Diabetic nephropathy (DN) is one of the most common microvascular complications associated with diabetes mellitus (DM); the incidence has been predicted to reach 7.7% by 2030 on a global scale. Krüppel-like factor 5 (KLF5) is involved in numerous important biological processes; however, the potential effects of KLF5 on podocytes in patients with diabetic nephrotic (DN) have not yet been investigated. In the present study, synaptopodin expression in podocytes was investigated using an immunofluorescence assay. Following this, the proliferation of podocytes was investigated using an MTT assay. In addition, KLF5 was overexpressed in podocytes, and cell cycle arrest and apoptosis was subsequently investigated using flow cytometry. Western blotting and reverse transcription-quantitative polymerase chain reaction assays were performed to detect the expression levels of genes involved in the cell cycle and apoptosis, and the extracellular signal-regulated protein kinase (ERK)/p38 mitogen-activated protein (MAP) kinase pathway. The results demonstrated that treatment with puromycin aminonucleoside (PAN) suppressed the proliferation of podocytes in a dose- and time-dependent manner, and overexpression of KLF5 induced cell cycle arrest of podocytes regulated by PAN. Furthermore, overexpression of KLF5 was revealed to have inhibited PAN-induced apoptosis of podocytes, and that overexpression of KLF5 suppressed the ERK/p38 MAP kinase pathway in podocytes induced by PAN. Therefore, the results of the present study suggested that KLF5 may represent a potential therapeutic target for treatment of patients with DN.
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Affiliation(s)
- Yang Li
- Department of Nephrology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
| | - Xiaoni Sui
- Department of Nephrology, Qingdao Municipal Hospital, Qingdao, Shandong 266011, P.R. China
| | - Xueqing Hu
- Department of Nephrology, Qingdao Municipal Hospital, Qingdao, Shandong 266011, P.R. China
| | - Zhao Hu
- Department of Nephrology, Qilu Hospital of Shandong University, Jinan, Shandong 250012, P.R. China
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Xie MS, Zheng YZ, Huang LB, Xu GX. Infliximab relieves blood retinal barrier breakdown through the p38 MAPK pathway in a diabetic rat model. Int J Ophthalmol 2017; 10:1824-1829. [PMID: 29259899 DOI: 10.18240/ijo.2017.12.06] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2017] [Accepted: 10/29/2017] [Indexed: 02/03/2023] Open
Abstract
AIM To clarify the mechanism of infliximab treatment in diabetic macular edema (DME) and to provide a new alternative therapy for DME. METHODS Rats were randomly divided into the control group, the model group and the infliximab treatment group. A diabetic rat model was created. The concentration of TNF-α in the vitreous body was detected by ELISA. The expressions of B-Raf, p38, claudin-1 and occludin in the retina were detected by Western blot. The integrity of the blood retinal barrier (BRB) was measured using Evan's blue as a tracer. RESULTS After three months and six months of the diabetes model, the vitreous TNF-α level in the model group was higher than that of the control group. It was also higher in treated group than that of the control group but was lower than that of the model group. The differences among the three groups were statistically significant (at 3mo, F=857.098, P<0.001; 6mo, F=1261.897, P<0.001). The retina B-Raf and p38 levels in the model group were higher than that of the control group. They were also higher in treated group than that of the control group but were lower than that of the model group. The differences among the three groups were statistically significant (B-Raf at 3mo, F=106.596, P<0.001 and at 6mo, F=200.681, P<0.001; p38 at 3mo, F=41.662, P<0.001 and at 6mo, F=67.979, P<0.001). The retina claudin-1 and occludin levels in the model group were lower than that of the control group. They were also lower in treated group than that of the control group but were higher than that of the model group. The differences among three groups were statistically significant (claudin-1 at 3mo, F=139.088, P<0.001 and at 6mo, F=128.415, P<0.001; occludin at 3mo, F=92.733, P<0.001 and at 6mo, F=104.478, P<0.001). The retinal Evans blue leakage in the model group was higher than that of the control group. It was also higher in treated group than that of the control group but was lower than that of the model group. The differences among the three groups were statistically significant (at 3mo, F=447.946, P<0.001; at 6mo, F=1610.732, P<0.001). CONCLUSION In a diabetic rat model, infliximab may relieve TNF-α induced BRB breakdown via the B-Raf and p38 signaling pathway.
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Affiliation(s)
- Mao-Song Xie
- Department of Ophthalmology, First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, Fujian Province, China
| | - Yong-Zheng Zheng
- Department of Ophthalmology, Affiliated People's Hospital of Fujian University of Traditional Chinese Medicine, Fuzhou 350005, Fujian Province, China
| | - Li-Bin Huang
- Department of Ophthalmology, First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, Fujian Province, China
| | - Guo-Xing Xu
- Department of Ophthalmology, First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, Fujian Province, China
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Ding CP, Guo YJ, Li HN, Wang JY, Zeng XY. Red nucleus interleukin-6 participates in the maintenance of neuropathic pain through JAK/STAT3 and ERK signaling pathways. Exp Neurol 2017; 300:212-221. [PMID: 29183675 DOI: 10.1016/j.expneurol.2017.11.012] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2017] [Revised: 11/21/2017] [Accepted: 11/24/2017] [Indexed: 12/18/2022]
Abstract
We previously reported that interleukin-6 (IL-6) in the red nucleus (RN) is up-regulated at 3weeks after spared nerve injury (SNI), and plays facilitated role in the later maintenance of neuropathic pain. The current study aimed to reveal the roles of different signaling pathways, including Janus kinase/signal transducer and activator of transcription 3 (JAK/STAT3), extracellular signal-regulated kinase (ERK), c-Jun N-terminal kinase (JNK), p38 mitogen-activated protein kinase (MAPK) and phosphatidylinositide 3-kinase/protein kinase B (PI3K/AKT), in RN IL-6-mediated pain modulation. In accord with the increase of IL-6 in the RN following SNI, the protein levels of phospho-STAT3 (p-STAT3), p-ERK and p-JNK were also up-regulated in the RN contralateral to the nerve injury side at 3weeks after SNI. The increases of p-STAT3 and p-ERK (but not p-JNK) were associated with IL-6 and could be blocked by anti-IL-6 antibody. Microinjection of JAK2 inhibitor AG490, ERK inhibitor PD98059 and also JNK inhibitor SP600125 into the RN significantly increased the paw withdrawal threshold (PWT) and alleviated SNI-induced mechanical allodynia. Further studies showed that microinjection of recombinant rat IL-6 (rrIL-6, 20ng) into the RN of normal rats significantly decreased the PWT of rats and increased the local protein levels of p-STAT3 and p-ERK, but not p-JNK. Pre-treatment with AG490 and PD98059 could prevent IL-6-induced mechanical allodynia. Whereas, p-p38 MAPK and p-AKT did not show any expression changes in the RN of rats with SNI or rats treated with rrIL-6. These results suggest that RN IL-6 participates in the later maintenance of SNI-induced neuropathic pain and plays facilitated role through activating JAK/STAT3 and ERK signaling pathways.
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Affiliation(s)
- Cui-Ping Ding
- Department of Laboratory Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China; Department of Pathogenic Biology and Immunology, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China
| | - Yi-Jie Guo
- Department of Pathogenic Biology and Immunology, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China
| | - Hao-Nan Li
- Department of Pathogenic Biology and Immunology, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China
| | - Jun-Yang Wang
- Department of Pathogenic Biology and Immunology, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi 710061, China
| | - Xiao-Yan Zeng
- Department of Laboratory Medicine, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, China.
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Guo CH, Bai L, Wu HH, Yang J, Cai GH, Wang X, Wu SX, Ma W. The analgesic effect of rolipram is associated with the inhibition of the activation of the spinal astrocytic JNK/CCL2 pathway in bone cancer pain. Int J Mol Med 2016; 38:1433-1442. [PMID: 28025994 PMCID: PMC5065302 DOI: 10.3892/ijmm.2016.2763] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2016] [Accepted: 09/19/2016] [Indexed: 12/13/2022] Open
Abstract
Bone cancer pain (BCP) is one of the most difficult and intractable tasks for pain management, which is associated with spinal 'neuron-astrocytic' activation. The activation of the c-Jun N-terminal kinase (JNK)/chemokine (C-C motif) ligand (CCL2) signaling pathway has been reported to be critical for neuropathic pain. Rolipram (ROL), a selective phosphodiesterase 4 inhibitor, possesses potent anti-inflammatory and anti-nociceptive activities. The present study aimed to investigate whether the intrathecal administration of ROL has an analgesic effect on BCP in rats, and to assess whether the inhibition of spinal JNK/CCL2 pathway and astrocytic activation are involved in the analgesic effects of ROL. The analgesic effects of ROL were evaluated using the Von Frey and Hargreaves tests. Immunofluorescence staining was used to determine the number of c-Fos immunoreactive neurons, and the expression of spinal astrocytes and microglial activation on day 14 after tumor cell inoculation. Enzyme-linked immunosorbent assay (ELISA) was used to detect the expression of pro-inflammatory cytokines [interleukin (IL)-1β, IL-6 and tumor necrosis factor (TNF)-α] and chemokines (CCL2), and western blot analysis was then used to examine the spinal phosphodiesterase 4 (PDE4), ionized calcium binding adapter molecule-1 (IBA-1) and JNK levels on day 14 after tumor cell inoculation. The results revealed that ROL exerted a short-term analgesic effect in a dose-dependent manner, and consecutive daily injections of ROL exerted continuous analgesic effects. In addition, spinal 'neuron-astrocytic' activation was suppressed and was associated with the downregulation of spinal IL-1β, IL-6 and TNF-α expression, and the inhibition of PDE4B and JNK levels in the spine was also observed. In addition, the level of CCL2 was decreased in the rats with BCP. The JNK inhibitor, SP600125, decreased CCL2 expression and attenuated pain behavior. Following co-treatment with ROL and SP600125, no significant increases in thermal hyperalgesia and CCL2 expression were observed compared with the ROL group. Thus, our findings suggest that the analgesic effects of ROL in BCP are mainly mediated through the inhibition of 'neuron-astrocytic' activation, which occurs via the suppression of spinal JNK/CCL2 signaling.
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Affiliation(s)
- Chi-Hua Guo
- Department of Orthopedics, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Lu Bai
- Department of Medical Imaging, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
| | - Huang-Hui Wu
- Department of Anesthesiology, Fuzhou General Hospital of Nanjing Military Region, Fuzhou, Fujian 350025, P.R. China
| | - Jing Yang
- Institute of Neuroscience, School of Medicine, Zhejiang University, Hangzhou, Zhejiang 310027, P.R. China
| | - Guo-Hong Cai
- Department of Neurobiology and Collaborative Innovation Center for Brain Science, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Xin Wang
- Department of Neurobiology and Collaborative Innovation Center for Brain Science, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Sheng-Xi Wu
- Department of Neurobiology and Collaborative Innovation Center for Brain Science, The Fourth Military Medical University, Xi'an, Shaanxi 710032, P.R. China
| | - Wei Ma
- Department of Orthopedics, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an, Shaanxi 710061, P.R. China
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Ding CP, Xue YS, Yu J, Guo YJ, Zeng XY, Wang JY. The Red Nucleus Interleukin-6 Participates in the Maintenance of Neuropathic Pain Induced by Spared Nerve Injury. Neurochem Res 2016; 41:3042-3051. [DOI: 10.1007/s11064-016-2023-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2016] [Revised: 07/24/2016] [Accepted: 07/28/2016] [Indexed: 11/30/2022]
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17
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Qian LP, Shen SR, Chen JJ, Ji LL, Cao S. Peripheral KATP activation inhibits pain sensitization induced by skin/muscle incision and retraction via the nuclear factor-κB/c-Jun N-terminal kinase signaling pathway. Mol Med Rep 2016; 14:2632-8. [PMID: 27484116 DOI: 10.3892/mmr.2016.5546] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2015] [Accepted: 02/15/2016] [Indexed: 11/05/2022] Open
Abstract
The aim of the current study was to assess the effect of pinacidil activation of ATP‑sensitive potassium (KATP) channels prior to skin/muscle incision and retraction (SMIR) surgery on peripheral and central sensitization, and investigate molecular interferential targets for preventive analgesia. Male Sprague-Dawley rats were randomly assigned to one of the following five groups: Control, incision (sham surgery), incision plus retraction (SMIR) group, SMIR plus pinacidil (pinacidil) group and the SMIR plus pyrrolidine dithiocarbamate (PDTC) group. The rats in the pinacidil and PDTC groups were intraperitoneally injected with pinacidil or PDTC, respectively, prior to the SMIR procedure. The mechanical withdrawal threshold (MWT) was determined. Western blotting was performed to detect the alterations in the subunits of the KATP channels, Kir6.1 and SUR2, levels of nuclear factor‑κB (NF‑κB) in the tissue around the incision and c‑Jun N‑terminal kinase (JNK) in the spinal cord. There was a significant increase observed in the levels of NF‑κB and JNK following SMIR surgery compared with the control group, and a significant reduction in MWT and the levels of Kir6.1 and SUR2. Additionally, intraperitoneal administration of pinacidil inhibited the reduction in MWT, and Kir6.1 and SUR2 levels. SMIR was observed to result in increases in the levels of NF‑κB and JNK. In addition, in the PDTC group, the alterations in MWT, NF‑κB, JNK, Kir6.1 and SUR2 resulting from SMIR were blocked. The results of the current study suggest that the deteriorations in the microenvironment resulting from the SMIR procedure can induce peripheral and central sensitization, and that the activation of peripheral KATP by pinacidil prior to SMIR is able to inhibit peripheral and central sensitization via the NF‑κB/JNK signaling pathway, thus resulting in preventive analgesia.
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Affiliation(s)
- Li-Ping Qian
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Shi-Ren Shen
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Jun-Jie Chen
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Lu-Lu Ji
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Su Cao
- Department of Anesthesiology, Affiliated Hospital of Nantong University, Nantong, Jiangsu 226001, P.R. China
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Wang J, Ding CP, Yu J, Zeng XY, Han SP, Wang JY. Dynamic distributions of tumor necrosis factor-alpha and its receptors in the red nucleus of rats with spared nerve injury. Neuropathology 2015; 36:346-53. [PMID: 26669937 DOI: 10.1111/neup.12282] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2015] [Revised: 11/23/2015] [Accepted: 11/24/2015] [Indexed: 01/12/2023]
Abstract
Previous studies have demonstrated that tumor necrosis factor-alpha (TNF-α) in the red nucleus (RN) plays a facilitated role in the development of neuropathic pain, and its effect is transmitted through TNF-α receptor (TNFR) subtypes 1 and 2. Here, the dynamic distributions of TNF-α and TNFRs in the RN of rats with spared nerve injury (SNI) were investigated. Western blot analysis and immunofluorescence staining indicated that TNF-α was hardly expressed in the RN of normal rats but significantly increased at 1 week and peaked at 2 weeks after SNI. Neurons and oligodendrocytes showed TNF-α expression at both 1 week and 2 weeks after SNI, while astrocytes and microglia produced TNF-α later than neurons and oligodendrocytes starting at 2 weeks after SNI. TNFR1 was constitutively expressed in the RN of normal rats and significantly enhanced at 2 weeks but not 1 week after SNI; it was mainly localized in neurons, oligodendrocytes and microglia. Astrocytes were not immunopositive for TNFR1 under normal conditions and at 1 week after injury, but small amounts of astrocytes showed TNFR1 expression at 2 weeks after SNI. A low level of TNFR2 was expressed in the RN of normal rats, but it was significantly increased at 1 week and 2 weeks after SNI and localized in neurons and all three types of glia. These findings suggest that neurons and three types of glia in the RN all contribute to TNF-α production and participate in the initiation and/or maintenance of neuropathic pain induced by SNI. TNF-α exerts its effects in different types of cells maybe through different receptors, TNFR1 and/or TNFR2, in the different stages of neuropathic pain.
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Affiliation(s)
- Jing Wang
- Departments of Pathogenic Biology and Immunology, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China
| | - Cui-Ping Ding
- Departments of Pathogenic Biology and Immunology, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China
| | - Jing Yu
- Departments of Pathogenic Biology and Immunology, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China
| | - Xiao-Yan Zeng
- Department of Laboratory Medicine, The First Affiliated Hospital, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China
| | - Shui-Ping Han
- Department of Pathology, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China
| | - Jun-Yang Wang
- Departments of Pathogenic Biology and Immunology, Xi'an Jiaotong University Health Science Center, Xi'an, Shaanxi, China
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Rojewska E, Popiolek-Barczyk K, Kolosowska N, Piotrowska A, Zychowska M, Makuch W, Przewlocka B, Mika J. PD98059 Influences Immune Factors and Enhances Opioid Analgesia in Model of Neuropathy. PLoS One 2015; 10:e0138583. [PMID: 26426693 PMCID: PMC4591269 DOI: 10.1371/journal.pone.0138583] [Citation(s) in RCA: 32] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2015] [Accepted: 09/01/2015] [Indexed: 12/30/2022] Open
Abstract
Neuropathic pain treatment remains challenging due to ineffective therapy and resistance to opioid analgesia. Mitogen-activated protein kinase kinase (MAPKK) have been identified as the crucial regulators of pro- and antinociceptive factors. We used PD98059, an inhibitor of the MAPKK family members MEK1/2. The aim of study was to examine the influence of single and/or repeated PD98059 on nociception and opioid effectiveness in neuropathy. Moreover, we examined how PD98059 influences selected members of cellular pathways and cytokines. The PD98059 (2.5 mcg) was intrathecally preemptively administered before chronic constriction injury (CCI), and then once daily for 7 days. Additionally, at day 7 after CCI the PD98059-treated rats received a single injection of opioids. Using Western blot and qRT-PCR techniques in PD98059-treated rats we analyzed the mRNA and/or protein level of p38, ERK1/2, JNK, NF-kappaB, IL-1beta, IL-6, iNOS and IL-10 in the lumbar spinal cord. Our results indicate that PD98059 has an analgesic effects and potentiates morphine and/or buprenorphine analgesia. Parallel we observed that PD98059 inhibit upregulation of the CCI-elevated p38, ERK1/2, JNK and NF-kappaB protein levels. Moreover, PD98059 also prevented increase of pro- (IL-1beta, IL-6, and iNOS) but enhances anti-nociceptive (IL-10) factors. Summing up, PD98059 diminished pain and increased the effectiveness of opioids in neuropathy. The inhibition of MEKs might inactivate a variety of cell signaling pathways that are implicated in nociception.
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Affiliation(s)
- Ewelina Rojewska
- Department of Pain Pharmacology, Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | | | - Natalia Kolosowska
- Department of Pain Pharmacology, Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Anna Piotrowska
- Department of Pain Pharmacology, Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Magdalena Zychowska
- Department of Pain Pharmacology, Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Wioletta Makuch
- Department of Pain Pharmacology, Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Barbara Przewlocka
- Department of Pain Pharmacology, Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
| | - Joanna Mika
- Department of Pain Pharmacology, Institute of Pharmacology, Polish Academy of Sciences, Krakow, Poland
- * E-mail:
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Yu J, Ding CP, Wang J, Wang T, Zhang T, Zeng XY, Wang JY. Red nucleus glutamate facilitates neuropathic allodynia induced by spared nerve injury through non-NMDA and metabotropic glutamate receptors. J Neurosci Res 2015; 93:1839-48. [DOI: 10.1002/jnr.23671] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2015] [Revised: 08/31/2015] [Accepted: 08/31/2015] [Indexed: 01/23/2023]
Affiliation(s)
- Jing Yu
- Department of Immunology and Pathogenic Biology; Xi'an Jiaotong University Health Science Center; Xi'an Shaanxi People's Republic of China
| | - Cui-Ping Ding
- Department of Immunology and Pathogenic Biology; Xi'an Jiaotong University Health Science Center; Xi'an Shaanxi People's Republic of China
| | - Jing Wang
- Department of Immunology and Pathogenic Biology; Xi'an Jiaotong University Health Science Center; Xi'an Shaanxi People's Republic of China
| | - Ting Wang
- Department of Immunology and Pathogenic Biology; Xi'an Jiaotong University Health Science Center; Xi'an Shaanxi People's Republic of China
- Department of Nuclear Medicine; Ankang City Center Hospital; Ankang Shaanxi People's Republic of China
| | - Tao Zhang
- Department of Immunology and Pathogenic Biology; Xi'an Jiaotong University Health Science Center; Xi'an Shaanxi People's Republic of China
- Department of Nuclear Medicine; Ankang City Center Hospital; Ankang Shaanxi People's Republic of China
| | - Xiao-Yan Zeng
- Department of Laboratory Medicine, The First Affiliated Hospital; Xi'an Jiaotong University Health Science Center; Xi'an Shaanxi People's Republic of China
| | - Jun-Yang Wang
- Department of Immunology and Pathogenic Biology; Xi'an Jiaotong University Health Science Center; Xi'an Shaanxi People's Republic of China
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21
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Guedon JMG, Wu S, Zheng X, Churchill CC, Glorioso JC, Liu CH, Liu S, Vulchanova L, Bekker A, Tao YX, Kinchington PR, Goins WF, Fairbanks CA, Hao S. Current gene therapy using viral vectors for chronic pain. Mol Pain 2015; 11:27. [PMID: 25962909 PMCID: PMC4446851 DOI: 10.1186/s12990-015-0018-1] [Citation(s) in RCA: 48] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2015] [Accepted: 04/01/2015] [Indexed: 02/07/2023] Open
Abstract
The complexity of chronic pain and the challenges of pharmacotherapy highlight the importance of development of new approaches to pain management. Gene therapy approaches may be complementary to pharmacotherapy for several advantages. Gene therapy strategies may target specific chronic pain mechanisms in a tissue-specific manner. The present collection of articles features distinct gene therapy approaches targeting specific mechanisms identified as important in the specific pain conditions. Dr. Fairbanks group describes commonly used gene therapeutics (herpes simplex viral vector (HSV) and adeno-associated viral vector (AAV)), and addresses biodistribution and potential neurotoxicity in pre-clinical models of vector delivery. Dr. Tao group addresses that downregulation of a voltage-gated potassium channel (Kv1.2) contributes to the maintenance of neuropathic pain. Alleviation of chronic pain through restoring Kv1.2 expression in sensory neurons is presented in this review. Drs Goins and Kinchington group describes a strategy to use the replication defective HSV vector to deliver two different gene products (enkephalin and TNF soluble receptor) for the treatment of post-herpetic neuralgia. Dr. Hao group addresses the observation that the pro-inflammatory cytokines are an important shared mechanism underlying both neuropathic pain and the development of opioid analgesic tolerance and withdrawal. The use of gene therapy strategies to enhance expression of the anti-pro-inflammatory cytokines is summarized. Development of multiple gene therapy strategies may have the benefit of targeting specific pathologies associated with distinct chronic pain conditions (by Guest Editors, Drs. C. Fairbanks and S. Hao).
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Affiliation(s)
- Jean-Marc G Guedon
- Graduate Program in Molecular Virology and Microbiology, University of Pittsburgh, School of Medicine, Pittsburgh, PA, 15213, USA. .,Department of Ophthalmology, University of Pittsburgh School of Medicine, Room 1020 EEI, 203 Lothrop Street, Pittsburgh, PA, 15213, USA.
| | - Shaogen Wu
- Department of Anesthesiology, New Jersey Medical School, Rutgers, State University of New Jersey, 185 S. Orange Ave., MSB, F-548, Newark, NJ, 07103, USA.
| | - Xuexing Zheng
- Department of Anesthesiology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA.
| | | | - Joseph C Glorioso
- Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, 424 Bridgeside Point II, 450 Technology Drive, Pittsburgh, PA, 15219, USA.
| | - Ching-Hang Liu
- Department of Anesthesiology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA.
| | - Shue Liu
- Department of Anesthesiology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA.
| | - Lucy Vulchanova
- Department of Neuroscience, University of Minnesota, Minneapolis, MN, USA.
| | - Alex Bekker
- Department of Anesthesiology, New Jersey Medical School, Rutgers, State University of New Jersey, 185 S. Orange Ave., MSB, F-548, Newark, NJ, 07103, USA.
| | - Yuan-Xiang Tao
- Department of Anesthesiology, New Jersey Medical School, Rutgers, State University of New Jersey, 185 S. Orange Ave., MSB, F-548, Newark, NJ, 07103, USA. .,Department of Cell Biology & Molecular Medicine, New Jersey Medical School, Rutgers, State University of New Jersey, Newark, NJ, 07103, USA. .,Department of Neurology & Neuroscience, New Jersey Medical School, Rutgers, State University of New Jersey, Newark, NJ, 07103, USA. .,Department of Physiology & Pharmacology, New Jersey Medical School, Rutgers, State University of New Jersey, Newark, NJ, 07103, USA.
| | - Paul R Kinchington
- Graduate Program in Molecular Virology and Microbiology, University of Pittsburgh, School of Medicine, Pittsburgh, PA, 15213, USA. .,Department of Ophthalmology, University of Pittsburgh School of Medicine, Room 1020 EEI, 203 Lothrop Street, Pittsburgh, PA, 15213, USA.
| | - William F Goins
- Microbiology and Molecular Genetics, University of Pittsburgh School of Medicine, 424 Bridgeside Point II, 450 Technology Drive, Pittsburgh, PA, 15219, USA.
| | - Carolyn A Fairbanks
- Department of Pharmaceutics, University of Minnesota, Minneapolis, MN, USA. .,Department of Neuroscience, University of Minnesota, Minneapolis, MN, USA. .,Department of Pharmacology, University of Minnesota, 9-177 Weaver Densford Hall, 308 Harvard Street, Minneapolis, MN, 55455, USA.
| | - Shuanglin Hao
- Department of Anesthesiology, University of Miami Miller School of Medicine, Miami, FL, 33136, USA.
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Zhang Q, Yu J, Wang J, Ding CP, Han SP, Zeng XY, Wang JY. The Red Nucleus TNF-α Participates in the Initiation and Maintenance of Neuropathic Pain Through Different Signaling Pathways. Neurochem Res 2015; 40:1360-71. [DOI: 10.1007/s11064-015-1599-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/09/2015] [Revised: 04/11/2015] [Accepted: 05/02/2015] [Indexed: 11/30/2022]
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Transforming growth factor-beta in the red nucleus plays antinociceptive effect under physiological and pathological pain conditions. Neuroscience 2015; 291:37-45. [PMID: 25662509 DOI: 10.1016/j.neuroscience.2015.01.059] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 01/17/2015] [Accepted: 01/27/2015] [Indexed: 02/07/2023]
Abstract
Previous studies have demonstrated that the red nucleus (RN) participates in the modulation of neuropathic pain and plays both a facilitated role by pro-inflammatory cytokines, such as tumor necrosis factor-alpha (TNF-α) and interleukin-1β (IL-1β), and an inhibitory role through the anti-inflammatory cytokine IL-10. In this study, we sought to investigate the expressions and roles of transforming growth factor-beta (TGF-β), a potent anti-inflammatory cytokine, as well as its type 1 receptor (TGF-β-R1) in the RN in normal and neuropathic pain rats. Immunohistochemistry showed that TGF-β and TGF-β-R1 were constitutively expressed in the RN of normal rats, and co-localized with neurons and all three glial cell types, astrocytes, microglia and oligodendrocytes. Following spared nerve injury (SNI), the expression levels of TGF-β and TGF-β-R1 were significantly down-regulated in the RN contralateral (but not ipsilateral) to the nerve injury side of rats at one week and reached the lowest level at two weeks after SNI, and both of them were co-localized with neurons and oligodendrocytes but not with astrocytes and microglia. Microinjection of different doses of anti-TGF-β antibody (250, 125, 50 ng) into the unilateral RN of normal rats dose-dependently decreased the mechanical withdrawal threshold of contralateral (but not ipsilateral) hind paw and induced significant mechanical hypersensitivity, which was similar to mechanical allodynia induced by peripheral nerve injury. In contrast, microinjection of different doses of recombinant rat TGF-β1 (500, 250, 100 ng) into the RN contralateral to the nerve injury side of SNI rats dose-dependently increased the paw withdrawal threshold and significantly alleviated mechanical allodynia induced by SNI. These results suggest that TGF-β in the RN participates in nociceptive processing and plays antinociceptive effects under normal physiological condition and in the development of neuropathic pain induced by SNI.
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Role of the red nucleus in suppressing the jaw-opening reflex following stimulation of the raphe magnus nucleus. Neurosci Res 2014; 85:12-9. [PMID: 24929104 DOI: 10.1016/j.neures.2014.05.010] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2014] [Revised: 05/15/2014] [Accepted: 05/17/2014] [Indexed: 11/22/2022]
Abstract
In a previous study, we found that electrical and chemical stimulation of the red nucleus (RN) suppressed the high-threshold afferent-evoked jaw-opening reflex (JOR). It has been reported that the RN receives bilaterally projection fibers from the raphe magnus nucleus (RMg), and that stimulation of the RMg inhibits the tooth pulp-evoked nociceptive JOR. These facts imply that RMg-induced inhibition of the JOR could be mediated via the RN. The present study first examines whether stimulation of the RMg suppresses the high-threshold afferent-evoked JOR. The JOR was evoked by electrical stimulation of the inferior alveolar nerve (IAN), and was recorded as the electromyographic response of the anterior belly of the digastric muscle. The stimulus intensity was 4.0 (high-threshold) times the threshold. Conditioning electrical stimulation of the RMg significantly suppressed the JOR. A further study then examined whether electrically induced lesions of the RN or microinjection of muscimol into the RN affects RMg-induced suppression of the JOR. Electrically induced lesions of the bilateral RN and microinjection of muscimol into the bilateral RN both reduced the RMg-induced suppression of the JOR. These results suggest that RMg-induced suppression of the high-threshold afferent-evoked JOR is mediated by a relay in the RN.
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Nascimento TD, DosSantos MF, Lucas S, van Holsbeeck H, DeBoer M, Maslowski E, Love T, Martikainen IK, Koeppe RA, Smith YR, Zubieta JK, DaSilva AF. μ-Opioid activation in the midbrain during migraine allodynia - brief report II. Ann Clin Transl Neurol 2014; 1:445-50. [PMID: 25328905 PMCID: PMC4184673 DOI: 10.1002/acn3.66] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2013] [Revised: 02/21/2014] [Accepted: 03/12/2014] [Indexed: 11/20/2022] Open
Abstract
We investigated in vivo the allodynic response of the central μ-opioid system during spontaneous migraine headaches, following a sustained pain threshold challenge on the trigeminal ophthalmic region. Six migraineurs were scanned during the ictal and interictal phases using positron emission tomography (PET) with the selective μ-opioid receptor (μOR) radiotracer [11C]carfentanil. Females were scanned during the mid-late follicular phase of two separate cycles. Patients showed ictal trigeminal allodynia during the thermal challenge that was concurrent and positively correlated with μOR activation in the midbrain, extending from red nucleus to ventrolateral periaqueductal gray matter. These findings demonstrate for the first time in vivo the high μOR activation in the migraineurs' brains in response to their allodynic experience.
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Affiliation(s)
- Thiago D Nascimento
- Headache and Orofacial Pain Effort (HOPE), Biologic and Materials Sciences Department, School of Dentistry, University of Michigan Ann Arbor, Michigan
| | - Marcos F DosSantos
- Headache and Orofacial Pain Effort (HOPE), Biologic and Materials Sciences Department, School of Dentistry, University of Michigan Ann Arbor, Michigan
| | - Sarah Lucas
- Headache and Orofacial Pain Effort (HOPE), Biologic and Materials Sciences Department, School of Dentistry, University of Michigan Ann Arbor, Michigan
| | - Hendrik van Holsbeeck
- Headache and Orofacial Pain Effort (HOPE), Biologic and Materials Sciences Department, School of Dentistry, University of Michigan Ann Arbor, Michigan
| | - Misty DeBoer
- Headache and Orofacial Pain Effort (HOPE), Biologic and Materials Sciences Department, School of Dentistry, University of Michigan Ann Arbor, Michigan
| | | | - Tiffany Love
- Translational Neuroimaging Laboratory, Molecular and Behavioral Neuroscience Institute (MBNI), University of Michigan Ann Arbor, Michigan
| | - Ilkka K Martikainen
- Headache and Orofacial Pain Effort (HOPE), Biologic and Materials Sciences Department, School of Dentistry, University of Michigan Ann Arbor, Michigan ; Translational Neuroimaging Laboratory, Molecular and Behavioral Neuroscience Institute (MBNI), University of Michigan Ann Arbor, Michigan
| | - Robert A Koeppe
- PET Physics Section, Division of Nuclear Medicine, Radiology Department, University of Michigan Ann Arbor, Michigan
| | - Yolanda R Smith
- Department of Obstetrics and Gynecology, University of Michigan Ann Arbor, Michigan
| | - Jon-Kar Zubieta
- Translational Neuroimaging Laboratory, Molecular and Behavioral Neuroscience Institute (MBNI), University of Michigan Ann Arbor, Michigan
| | - Alexandre F DaSilva
- Headache and Orofacial Pain Effort (HOPE), Biologic and Materials Sciences Department, School of Dentistry, University of Michigan Ann Arbor, Michigan ; Translational Neuroimaging Laboratory, Molecular and Behavioral Neuroscience Institute (MBNI), University of Michigan Ann Arbor, Michigan ; Michigan Center for Oral Health Research (MCOHR), School of Dentistry, University of Michigan Ann Arbor, Michigan
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