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Li WW, Zhao Y, Liu HC, Liu J, Chan SO, Zhong YF, Zhang TY, Liu Y, Zhang W, Xia YQ, Chi XC, Xu J, Wang Y, Wang J. Roles of Thermosensitive Transient Receptor Channels TRPV1 and TRPM8 in Paclitaxel-Induced Peripheral Neuropathic Pain. Int J Mol Sci 2024; 25:5813. [PMID: 38892000 PMCID: PMC11171746 DOI: 10.3390/ijms25115813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2024] [Revised: 05/20/2024] [Accepted: 05/23/2024] [Indexed: 06/21/2024] Open
Abstract
Paclitaxel, a microtubule-stabilizing chemotherapy drug, can cause severe paclitaxel-induced peripheral neuropathic pain (PIPNP). The roles of transient receptor potential (TRP) ion channel vanilloid 1 (TRPV1, a nociceptor and heat sensor) and melastatin 8 (TRPM8, a cold sensor) in PIPNP remain controversial. In this study, Western blotting, immunofluorescence staining, and calcium imaging revealed that the expression and functional activity of TRPV1 were upregulated in rat dorsal root ganglion (DRG) neurons in PIPNP. Behavioral assessments using the von Frey and brush tests demonstrated that mechanical hyperalgesia in PIPNP was significantly inhibited by intraperitoneal or intrathecal administration of the TRPV1 antagonist capsazepine, indicating that TRPV1 played a key role in PIPNP. Conversely, the expression of TRPM8 protein decreased and its channel activity was reduced in DRG neurons. Furthermore, activation of TRPM8 via topical application of menthol or intrathecal injection of WS-12 attenuated the mechanical pain. Mechanistically, the TRPV1 activity triggered by capsaicin (a TRPV1 agonist) was reduced after menthol application in cultured DRG neurons, especially in the paclitaxel-treated group. These findings showed that upregulation of TRPV1 and inhibition of TRPM8 are involved in the generation of PIPNP, and they suggested that inhibition of TRPV1 function in DRG neurons via activation of TRPM8 might underlie the analgesic effects of menthol.
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Affiliation(s)
- Wen-Wen Li
- Department of Human Anatomy, Histology & Embryology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China; (W.-W.L.); (Y.Z.); (H.-C.L.); (Y.-F.Z.); (T.-Y.Z.); (Y.L.); (W.Z.); (Y.-Q.X.); (X.-C.C.); (J.X.)
| | - Yan Zhao
- Department of Human Anatomy, Histology & Embryology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China; (W.-W.L.); (Y.Z.); (H.-C.L.); (Y.-F.Z.); (T.-Y.Z.); (Y.L.); (W.Z.); (Y.-Q.X.); (X.-C.C.); (J.X.)
| | - Huai-Cun Liu
- Department of Human Anatomy, Histology & Embryology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China; (W.-W.L.); (Y.Z.); (H.-C.L.); (Y.-F.Z.); (T.-Y.Z.); (Y.L.); (W.Z.); (Y.-Q.X.); (X.-C.C.); (J.X.)
| | - Jiao Liu
- Center of Medical and Health Analysis, Peking University Health Science Center, Beijing 100191, China;
| | - Sun-On Chan
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Yi-Fei Zhong
- Department of Human Anatomy, Histology & Embryology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China; (W.-W.L.); (Y.Z.); (H.-C.L.); (Y.-F.Z.); (T.-Y.Z.); (Y.L.); (W.Z.); (Y.-Q.X.); (X.-C.C.); (J.X.)
| | - Tang-Yu Zhang
- Department of Human Anatomy, Histology & Embryology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China; (W.-W.L.); (Y.Z.); (H.-C.L.); (Y.-F.Z.); (T.-Y.Z.); (Y.L.); (W.Z.); (Y.-Q.X.); (X.-C.C.); (J.X.)
| | - Yu Liu
- Department of Human Anatomy, Histology & Embryology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China; (W.-W.L.); (Y.Z.); (H.-C.L.); (Y.-F.Z.); (T.-Y.Z.); (Y.L.); (W.Z.); (Y.-Q.X.); (X.-C.C.); (J.X.)
| | - Wei Zhang
- Department of Human Anatomy, Histology & Embryology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China; (W.-W.L.); (Y.Z.); (H.-C.L.); (Y.-F.Z.); (T.-Y.Z.); (Y.L.); (W.Z.); (Y.-Q.X.); (X.-C.C.); (J.X.)
| | - Yu-Qi Xia
- Department of Human Anatomy, Histology & Embryology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China; (W.-W.L.); (Y.Z.); (H.-C.L.); (Y.-F.Z.); (T.-Y.Z.); (Y.L.); (W.Z.); (Y.-Q.X.); (X.-C.C.); (J.X.)
| | - Xiao-Chun Chi
- Department of Human Anatomy, Histology & Embryology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China; (W.-W.L.); (Y.Z.); (H.-C.L.); (Y.-F.Z.); (T.-Y.Z.); (Y.L.); (W.Z.); (Y.-Q.X.); (X.-C.C.); (J.X.)
| | - Jian Xu
- Department of Human Anatomy, Histology & Embryology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China; (W.-W.L.); (Y.Z.); (H.-C.L.); (Y.-F.Z.); (T.-Y.Z.); (Y.L.); (W.Z.); (Y.-Q.X.); (X.-C.C.); (J.X.)
| | - Yun Wang
- Neuroscience Research Institute and Department of Neurobiology, Key Laboratory for Neuroscience of Ministry of Education and Neuroscience, Peking University Health Science Center, Beijing 100191, China
- PKU-IDG/McGovern Institute for Brain Research, Peking University, Beijing 100871, China
| | - Jun Wang
- Department of Human Anatomy, Histology & Embryology, School of Basic Medical Sciences, Peking University Health Science Center, Beijing 100191, China; (W.-W.L.); (Y.Z.); (H.-C.L.); (Y.-F.Z.); (T.-Y.Z.); (Y.L.); (W.Z.); (Y.-Q.X.); (X.-C.C.); (J.X.)
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2
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Structure-guided peptide engineering of a positive allosteric modulator targeting the outer pore of TRPV1 for long-lasting analgesia. Nat Commun 2023; 14:4. [PMID: 36596769 PMCID: PMC9810691 DOI: 10.1038/s41467-022-34817-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2022] [Accepted: 11/08/2022] [Indexed: 01/05/2023] Open
Abstract
Transient receptor potential vanilloid 1 (TRPV1) ion channel is a classic analgesic target, but antagonists of TRPV1 failed in clinical trials due to their side effects like hyperthermia. Here we rationally engineer a peptide s-RhTx as a positive allosteric modulator (PAM) of TRPV1. Patch-clamp recordings demonstrate s-RhTx selectively potentiated TRPV1 activation. s-RhTx also slows down capsaicin-induced desensitization of TRPV1 in the presence of calcium to cause more calcium influx in TRPV1-expressing cells. In addition, our thermodynamic mutant cycle analysis shows that E652 in TRPV1 outer pore specifically interacts with R12 and K22 in s-RhTx. Furthermore, we demonstrate in vivo that s-RhTx exhibits long-lasting analgesic effects in noxious heat hyperalgesia and CFA-induced chronic inflammatory pain by promoting the reversible degeneration of intra-epidermal nerve fiber (IENF) expressing TRPV1 channels in mice, while their body temperature remains unaffected. Our results suggest s-RhTx is an analgesic agent as a PAM of TRPV1.
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3
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Li X, Xu Y, Li H, Jia L, Wang J, Liang S, Cai A, Tan X, Wang L, Wang X, Huang Y, Tao E, Ye H, Asakawa T. Verification of pain-related neuromodulation mechanisms of icariin in knee osteoarthritis. Biomed Pharmacother 2021; 144:112259. [PMID: 34607107 DOI: 10.1016/j.biopha.2021.112259] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2021] [Revised: 09/21/2021] [Accepted: 09/26/2021] [Indexed: 12/19/2022] Open
Abstract
Knee osteoarthritis (KOA) is a common disease with no specific treatment. Icariin (ICA) is considered an agent for KOA. This study aimed to confirm the pain-related neuromodulation mechanisms of ICA on KOA. Three experiments were designed: (1) verifying the therapeutic effects of ICA in vivo and in vitro, (2) exploring the potential pain-related neuromodulation pathways involved in ICA treatment by functional magnetic resonance imaging (fMRI) and virus retrograde tracing (VRT) and (3) confirming the pain-related targets by tandem mass tag (TMT)-based quantitative proteomics and bioinformatic analyses. Experiment 1 verified the efficacy of ICA in OA animal and cell models. Experiment 2 found a series of brain regions associated with KOA reversed by ICA treatment, indicating that a pain-related hypothalamic-mediated neuromodulation pathway and an endocannabinoid (EC)-related pathway contribute to ICA mechanisms. Experiment 3 explored and confirmed four pain-related genes involved in KOA and ICA treatment. We confirmed the key role of pain-related neuromodulation mechanisms in ICA treatment associated with its analgesic effect. Our findings contribute to considering ICA as a novel therapy for KOA.
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MESH Headings
- Analgesics/pharmacology
- Animals
- Antirheumatic Agents/pharmacology
- Arthritis, Experimental/diagnostic imaging
- Arthritis, Experimental/drug therapy
- Arthritis, Experimental/metabolism
- Arthritis, Experimental/physiopathology
- Behavior, Animal/drug effects
- Brain/diagnostic imaging
- Brain/drug effects
- Brain/metabolism
- Brain/physiopathology
- Cells, Cultured
- Chondrocytes/drug effects
- Chondrocytes/metabolism
- Flavonoids/pharmacology
- Gene Expression Regulation
- Inflammation Mediators/metabolism
- Joints/drug effects
- Joints/innervation
- Joints/metabolism
- Magnetic Resonance Imaging
- Male
- Mice, Inbred C57BL
- Neuroanatomical Tract-Tracing Techniques
- Neuropeptides/genetics
- Neuropeptides/metabolism
- Osteoarthritis, Knee/diagnostic imaging
- Osteoarthritis, Knee/drug therapy
- Osteoarthritis, Knee/metabolism
- Osteoarthritis, Knee/physiopathology
- Pain Threshold/drug effects
- Proteomics
- Rats, Sprague-Dawley
- Signal Transduction
- Tandem Mass Spectrometry
- Mice
- Rats
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Affiliation(s)
- Xihai Li
- College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fuzhou 350122, China
| | - Yunteng Xu
- Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fuzhou 350122, China; Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - Hui Li
- Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fuzhou 350122, China; Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - Liangliang Jia
- Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fuzhou 350122, China; Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - Jie Wang
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, Wuhan 430071, China; Innovation Academy for Precision Measurement Science, Wuhan 430071, China
| | - Shengxiang Liang
- National-Local Joint Engineering Research Center of Rehabilitation Medicine Technology, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China; Rehabilitation Industry Institute, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - Aoling Cai
- State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Key Laboratory of Magnetic Resonance in Biological Systems, Wuhan 430071, China; Innovation Academy for Precision Measurement Science, Wuhan 430071, China
| | - Xue Tan
- Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fuzhou 350122, China; Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - Lili Wang
- Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fuzhou 350122, China; Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - Xiaoning Wang
- College of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China; Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fuzhou 350122, China
| | - Yanfeng Huang
- Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fuzhou 350122, China; Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - Enxiang Tao
- Department of Neurology, The Eighth Affiliated Hospital, Sun Yat-Sen University, Shenzhen 518033, China
| | - Hongzhi Ye
- Fujian Key Laboratory of Integrative Medicine on Geriatrics, Fuzhou 350122, China; Academy of Integrative Medicine, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China.
| | - Tetsuya Asakawa
- Department of Neurology, The Eighth Affiliated Hospital, Sun Yat-Sen University, Shenzhen 518033, China; Research Base of Traditional Chinese Medicine Syndrome, Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China.
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4
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Ma J, Goodwani S, Acton PJ, Buggia-Prevot V, Kesler SR, Jamal I, Mahant ID, Liu Z, Mseeh F, Roth BL, Chakraborty C, Peng B, Wu Q, Jiang Y, Le K, Soth MJ, Jones P, Kavelaars A, Ray WJ, Heijnen CJ. Inhibition of dual leucine zipper kinase prevents chemotherapy-induced peripheral neuropathy and cognitive impairments. Pain 2021; 162:2599-2612. [PMID: 33872235 PMCID: PMC8442742 DOI: 10.1097/j.pain.0000000000002256] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2020] [Revised: 01/15/2021] [Accepted: 01/26/2021] [Indexed: 11/26/2022]
Abstract
ABSTRACT Chemotherapy-induced peripheral neuropathy (CIPN) and chemotherapy-induced cognitive impairments (CICI) are common, often severe neurotoxic side effects of cancer treatment that greatly reduce quality of life of cancer patients and survivors. Currently, there are no Food and Drug Administration-approved agents for the prevention or curative treatment of CIPN or CICI. The dual leucine zipper kinase (DLK) is a key mediator of axonal degeneration that is localized to axons and coordinates the neuronal response to injury. We developed a novel brain-penetrant DLK inhibitor, IACS'8287, which demonstrates potent and highly selective inhibition of DLK in vitro and in vivo. Coadministration of IACS'8287 with the platinum derivative cisplatin prevents mechanical allodynia, loss of intraepidermal nerve fibers in the hind paws, cognitive deficits, and impairments in brain connectivity in mice, all without interfering with the antitumor activity of cisplatin. The protective effects of IACS'8287 are associated with preservation of mitochondrial function in dorsal root ganglion neurons and in brain synaptosomes. In addition, RNA sequencing analysis of dorsal root ganglia reveals modulation of genes involved in neuronal activity and markers for immune cell infiltration by DLK inhibition. These data indicate that CIPN and CICI require DLK signaling in mice, and DLK inhibitors could become an attractive treatment in the clinic when coadministered with cisplatin, and potentially other chemotherapeutic agents, to prevent neurotoxicities as a result of cancer treatment.
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Affiliation(s)
- Jiacheng Ma
- The Neurodegeneration Consortium, Therapeutics Discovery Division, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
- Laboratories of Neuroimmunology, Department of Symptom Research, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Sunil Goodwani
- The Neurodegeneration Consortium, Therapeutics Discovery Division, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Paul J. Acton
- The Neurodegeneration Consortium, Therapeutics Discovery Division, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Virginie Buggia-Prevot
- The Neurodegeneration Consortium, Therapeutics Discovery Division, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Shelli R. Kesler
- Cancer Neuroscience Lab, School of Nursing, Department of Diagnostic Medicine, LIVESTRONG Cancer Institutes, University of Texas at Austin, Austin, TX, United States
| | - Imran Jamal
- Laboratories of Neuroimmunology, Department of Symptom Research, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Iteeben D. Mahant
- Laboratories of Neuroimmunology, Department of Symptom Research, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Zhen Liu
- Institute for Applied Cancer Science, Therapeutics Discovery Division, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Faika Mseeh
- Institute for Applied Cancer Science, Therapeutics Discovery Division, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Bruce L. Roth
- The Neurodegeneration Consortium, Therapeutics Discovery Division, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Chaitali Chakraborty
- The Neurodegeneration Consortium, Therapeutics Discovery Division, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Bo Peng
- Department of Bioinformatics and Computational Biology, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Qi Wu
- Institute for Applied Cancer Science, Therapeutics Discovery Division, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Yongying Jiang
- Institute for Applied Cancer Science, Therapeutics Discovery Division, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Kang Le
- Institute for Applied Cancer Science, Therapeutics Discovery Division, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Michael J. Soth
- Institute for Applied Cancer Science, Therapeutics Discovery Division, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Philip Jones
- Institute for Applied Cancer Science, Therapeutics Discovery Division, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Annemieke Kavelaars
- Laboratories of Neuroimmunology, Department of Symptom Research, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - William J. Ray
- The Neurodegeneration Consortium, Therapeutics Discovery Division, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
| | - Cobi J. Heijnen
- Laboratories of Neuroimmunology, Department of Symptom Research, The University of Texas MD Anderson Cancer Center, Houston, TX, United States
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5
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Chen L, Hu Q, Liu H, Zhao Y, Chan SO, Wang J. Nogo-A Induced Polymerization of Microtubule Is Involved in the Inflammatory Heat Hyperalgesia in Rat Dorsal Root Ganglion Neurons. Int J Mol Sci 2021; 22:ijms221910360. [PMID: 34638704 PMCID: PMC8508904 DOI: 10.3390/ijms221910360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2021] [Revised: 09/13/2021] [Accepted: 09/21/2021] [Indexed: 11/16/2022] Open
Abstract
The microtubule, a major constituent of cytoskeletons, was shown to bind and interact with transient receptor potential vanilloid subfamily member 1 (TRPV1), and serves a pivotal role to produce thermal hyperalgesia in inflammatory pain. Nogo-A is a modulator of microtubule assembly and plays a key role in maintaining the function of TRPV1 in inflammatory heat pain. However, whether the microtubule dynamics modulated by Nogo-A in dorsal root ganglion (DRG) neurons participate in the inflammatory pain is not elucidated. Here we reported that the polymerization of microtubules in the DRG neurons, as indicated by the acetylated α-tubulin, tubulin polymerization-promoting protein 3 (TPPP3), and microtubule numbers, was significantly elevated in the complete Freund’s adjuvant (CFA) induced inflammatory pain. Consistent with our previous results, knock-out (KO) of Nogo-A protein significantly attenuated the heat hyperalgesia 72 h after CFA injection and decreased the microtubule polymerization via up-regulation of phosphorylation of collapsin response mediator protein 2 (CRMP2) in DRG. The colocalization of acetylated α-tubulin and TRPV1 in DRG neurons was also reduced dramatically in Nogo-A KO rats under inflammatory pain. Moreover, the down-regulation of TRPV1 in DRG of Nogo-A KO rats after injection of CFA was reversed by intrathecal injection of paclitaxel, a microtubule stabilizer. Furthermore, intrathecal injection of nocodazole (a microtubule disruptor) attenuated significantly the CFA-induced inflammatory heat hyperalgesia and the mechanical pain in a rat model of spared nerve injury (SNI). In these SNI cases, the Nogo-A and acetylated α-tubulin in DRG were also significantly up-regulated. We conclude that the polymerization of microtubules promoted by Nogo-A in DRG contributes to the development of inflammatory heat hyperalgesia mediated by TRPV1.
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Affiliation(s)
- Ling Chen
- Department of Human Anatomy, Histology & Embryology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; (L.C.); (Q.H.); (H.L.); (Y.Z.)
| | - Qiguo Hu
- Department of Human Anatomy, Histology & Embryology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; (L.C.); (Q.H.); (H.L.); (Y.Z.)
| | - Huaicun Liu
- Department of Human Anatomy, Histology & Embryology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; (L.C.); (Q.H.); (H.L.); (Y.Z.)
| | - Yan Zhao
- Department of Human Anatomy, Histology & Embryology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; (L.C.); (Q.H.); (H.L.); (Y.Z.)
| | - Sun-On Chan
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong, China
- Correspondence: (S.-O.C.); (J.W.); Tel.: +85-2-3943-6898 (S.-O.C.); +86-10-8280-1119 (J.W.)
| | - Jun Wang
- Department of Human Anatomy, Histology & Embryology, School of Basic Medical Sciences, Peking University, Beijing 100191, China; (L.C.); (Q.H.); (H.L.); (Y.Z.)
- Correspondence: (S.-O.C.); (J.W.); Tel.: +85-2-3943-6898 (S.-O.C.); +86-10-8280-1119 (J.W.)
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6
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Li J, Chen Y, Liu J, Zhang D, Liang P, Lu P, Shen J, Miao C, Zuo Y, Zhou C. Elevated Expression and Activity of Sodium Leak Channel Contributes to Neuronal Sensitization of Inflammatory Pain in Rats. Front Mol Neurosci 2021; 14:723395. [PMID: 34512260 PMCID: PMC8430348 DOI: 10.3389/fnmol.2021.723395] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2021] [Accepted: 08/02/2021] [Indexed: 02/05/2023] Open
Abstract
Inflammatory pain encompasses many clinical symptoms, and there is no satisfactory therapeutic target. Neuronal hyperexcitability and/or sensitization of the primary nociceptive neurons in the dorsal root ganglion (DRG) and spinal dorsal horn are critical to the development and maintenance of inflammatory pain. The sodium leak channel (NALCN), a non-selective cation channel, mediates the background Na+ leak conductance and controls neuronal excitability. It is unknown whether abnormal activity of NALCN mediates the pathological process of inflammatory pain. Complete Freund’s adjuvant (CFA) was injected into the left footpad of rats to induce inflammatory pain. The thresholds of mechanical and thermal sensation and spontaneous pain behaviors were assessed. The expression of NALCN in DRG and spinal dorsal cord was measured. NALCN currents and the contribution of NALCN to neuronal excitability in the DRG and spinal dorsal cord were recorded using whole-cell patch-clamping recording. NALCN was abundantly expressed in neurons of the DRG and spinal dorsal cord. In acutely isolated DRG neurons and spinal cord slices from rats with CFA-induced inflammatory pain, NALCN currents and neuronal excitability were increased. Subsequently, intrathecal and sciatic nerve injection of NALCN-small interfering RNA (siRNA) decreased NALCN mRNA and reverted NALCN currents to normal levels, and then reduced CFA-induced neuronal excitability and alleviated pain symptoms. Furthermore, pain-related symptoms were significantly prevented by the NALCN-shRNA-mediated NALCN knockdown in DRG and spinal cord. Therefore, increased expression and activity of NALCN contributed to neuronal sensitization in CFA-induced inflammatory pain. NALCN may be a novel molecular target for the control of inflammatory pain.
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Affiliation(s)
- Jia Li
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China.,Laboratory of Anaesthesia and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, China.,Department of Anesthesiology, Xi'an Jiaotong University-Affiliated Honghui Hospital, Xi'an, China
| | - Yali Chen
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China.,Laboratory of Anaesthesia and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, China
| | - Jin Liu
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China.,Laboratory of Anaesthesia and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, China
| | - Donghang Zhang
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China.,Laboratory of Anaesthesia and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, China
| | - Peng Liang
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
| | - Peilin Lu
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China
| | - Jiefei Shen
- Laboratory of Oral Diseases & National Clinical Research Center for Oral Diseases and Department of Prosthodontics, West China Stomatology Hospital of Sichuan University, Chengdu, China
| | - Changhong Miao
- Department of Anesthesiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yunxia Zuo
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China.,Laboratory of Anaesthesia and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, China
| | - Cheng Zhou
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, China.,Laboratory of Anaesthesia and Critical Care Medicine, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, China
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7
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Pradhan LK, Das SK. The Regulatory Role of Reticulons in Neurodegeneration: Insights Underpinning Therapeutic Potential for Neurodegenerative Diseases. Cell Mol Neurobiol 2021; 41:1157-1174. [PMID: 32504327 DOI: 10.1007/s10571-020-00893-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2020] [Accepted: 05/29/2020] [Indexed: 02/06/2023]
Abstract
In the last few decades, cytoplasmic organellar dysfunction, such as that of the endoplasmic reticulum (ER), has created a new area of research interest towards the development of serious health maladies including neurodegenerative diseases. In this context, the extensively dispersed family of ER-localized proteins, i.e. reticulons (RTNs), is gaining interest because of its regulative control over neural regeneration. As most neurodegenerative diseases are pathologically manifested with the accretion of misfolded proteins with subsequent induction of ER stress, the regulatory role of RTNs in neural dysfunction cannot be ignored. With the limited information available in the literature, delineation of the functional connection between rising consequences of neurodegenerative diseases and RTNs need to be elucidated. In this review, we provide a broad overview on the recently revealed regulatory roles of reticulons in the pathophysiology of several health maladies, with special emphasis on neurodegeneration. Additionally, we have also recapitulated the decisive role of RTN4 in neurite regeneration and highlighted how neurodegeneration and proteinopathies are mechanistically linked with each other through specific RTN paralogues. With the recent findings advocating zebrafish Rtn4b (a mammalian Nogo-A homologue) downregulation following central nervous system (CNS) lesion, RTNs provides new insight into the CNS regeneration. However, there are controversies with respect to the role of Rtn4b in zebrafish CNS regeneration. Given these controversies, the connection between the unique regenerative capabilities of zebrafish CNS by distinct compensatory mechanisms and Rtn4b signalling pathway could shed light on the development of new therapeutic strategies against serious neurodegenerative diseases.
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Affiliation(s)
- Lilesh Kumar Pradhan
- Neurobiology Laboratory, Centre for Biotechnology, Siksha 'O' Anusandhan (Deemed To Be University), Kalinga Nagar, Bhubaneswar, 751003, India
| | - Saroj Kumar Das
- Neurobiology Laboratory, Centre for Biotechnology, School of Pharmaceutical Sciences, Siksha 'O' Anusandhan (Deemed To Be University), Kalinga Nagar, Bhubaneswar, 751003, India.
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Yu Q, Wu C, Chen Y, Li B, Wang R, Huang R, Li X, Gu D, Wang X, Duan X, Li S, Liu Y, Wu W, Hennenberg M, Zeng G. Inhibition of LIM kinase reduces contraction and proliferation in bladder smooth muscle. Acta Pharm Sin B 2021; 11:1914-1930. [PMID: 34386328 PMCID: PMC8343115 DOI: 10.1016/j.apsb.2021.01.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2020] [Revised: 10/17/2020] [Accepted: 11/03/2020] [Indexed: 01/03/2023] Open
Abstract
Overactive bladder (OAB) is the most bothersome symptom in lower urinary tract symptoms (LUTS). Current pharmacologic treatment aims to inhibit detrusor contraction; however, shows unsatisfied efficacy and high discontinuation rate. LIM kinases (LIMKs) promote smooth muscle contraction in the prostate; however, their function in the bladder smooth muscle remains unclear. Here, we studied effects of the LIMK inhibitors on bladder smooth muscle contraction and proliferation both in vitro and in vivo experiments. Bladder expressions of LIMKs are elevated in OAB rat detrusor tissues. Two LIMK inhibitors, SR7826 and LIMKi3, inhibit contraction of human detrusor strip, and cause actin filament breakdown, as well as cell proliferation reduction in cultured human bladder smooth muscle cells (HBSMCs), paralleled by reduced cofilin phosphorylation. Silencing of LIMK1 and LIMK2 in HBSMCs resulted in breakdown of actin filaments and decreased cell proliferation. Treatment with SR7826 or LIMKi3 decreased micturition frequency and bladder detrusor hypertrophy in rats with bladder outlet obstruction. Our study suggests that LIMKs may promote contraction and proliferation in the bladder smooth muscle, which could be inhibited by small molecule LIMK inhibitors. LIMK inhibitors could be a potential therapeutic strategy for OAB- related LUTS.
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Key Words
- 4E-BP1, 4E-binding protein 1
- ADF, actin depolymerizing factors
- BOO, bladder outlet obstruction
- BPH, benign prostatic hyperplasia
- Bladder smooth muscle contraction
- CCK-8, Cell Counting Kit-8
- Cofilin phosphorylation
- Ct, number of cycles
- DMSO, dimethyl sulfoxide
- EdU, 5-ethynyl-2′-deoxyuridine
- GAPDH, glyceraldehyde 3-phosphate dehydrogenase
- H&E, hematoxylin and eosin
- HBSMCs, human bladder smooth muscle cells
- HRP, horseradish peroxidase
- LIMK
- LIMKs, LIM kinases
- LUTS, lower urinary tract symptoms
- Lower urinary tract symptoms (LUTS)
- MLC, myosin light chain
- MW, molecular weight
- MYPT1, myosin-binding subunit
- OAB, overactive bladder
- Overactive bladder (OAB)
- PCNA, proliferating cell nuclear antigen
- RT-qPCR, reverse transcription and quantitative polymerase chain reaction
- STK16, serine/threonine kinase 16
- TESK1, testicular protein kinase 1
- TXA2, thromboxane A2
- WST-8, 2-(2-methoxy-4-nitrophenyl)-3-(4-nitrophenyl)-5-(2,4-disulfophenyl)-2H-tetrazolium monosodium salt
- siRNA, small interfering RNA
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Affiliation(s)
- Qingfeng Yu
- Department of Urology and Guangdong Key Laboratory of Urology, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510230, China
| | - Chengjie Wu
- Department of Urology and Guangdong Key Laboratory of Urology, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510230, China
| | - Yeda Chen
- Department of Urology and Guangdong Key Laboratory of Urology, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510230, China
| | - Bingsheng Li
- Department of Urology, University Hospital, LMU Munich, Munich 81377, Germany
| | - Ruixiao Wang
- Department of Urology, University Hospital, LMU Munich, Munich 81377, Germany
| | - Ru Huang
- Department of Urology, University Hospital, LMU Munich, Munich 81377, Germany
| | - Xuechun Li
- Department of Urology and Guangdong Key Laboratory of Urology, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510230, China
| | - Di Gu
- Department of Urology and Guangdong Key Laboratory of Urology, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510230, China
| | - Xiaolong Wang
- Department of Urology, University Hospital, LMU Munich, Munich 81377, Germany
| | - Xiaolu Duan
- Department of Urology and Guangdong Key Laboratory of Urology, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510230, China
| | - Shujue Li
- Department of Urology and Guangdong Key Laboratory of Urology, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510230, China
| | - Yang Liu
- Department of Urology and Guangdong Key Laboratory of Urology, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510230, China
| | - Wenqi Wu
- Department of Urology and Guangdong Key Laboratory of Urology, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510230, China
| | - Martin Hennenberg
- Department of Urology, University Hospital, LMU Munich, Munich 81377, Germany
| | - Guohua Zeng
- Department of Urology and Guangdong Key Laboratory of Urology, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510230, China
- Corresponding author. Tel.: +86 20 34294165.
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The Implication of Reticulons (RTNs) in Neurodegenerative Diseases: From Molecular Mechanisms to Potential Diagnostic and Therapeutic Approaches. Int J Mol Sci 2021; 22:ijms22094630. [PMID: 33924890 PMCID: PMC8125174 DOI: 10.3390/ijms22094630] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/21/2021] [Accepted: 04/23/2021] [Indexed: 02/07/2023] Open
Abstract
Reticulons (RTNs) are crucial regulatory factors in the central nervous system (CNS) as well as immune system and play pleiotropic functions. In CNS, RTNs are transmembrane proteins mediating neuroanatomical plasticity and functional recovery after central nervous system injury or diseases. Moreover, RTNs, particularly RTN4 and RTN3, are involved in neurodegeneration and neuroinflammation processes. The crucial role of RTNs in the development of several neurodegenerative diseases, including Alzheimer's disease (AD), multiple sclerosis (MS), amyotrophic lateral sclerosis (ALS), or other neurological conditions such as brain injury or spinal cord injury, has attracted scientific interest. Reticulons, particularly RTN-4A (Nogo-A), could provide both an understanding of early pathogenesis of neurodegenerative disorders and be potential therapeutic targets which may offer effective treatment or inhibit disease progression. This review focuses on the molecular mechanisms and functions of RTNs and their potential usefulness in clinical practice as a diagnostic tool or therapeutic strategy.
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Ouyang J, Chen X, Su S, Li X, Xu X, Yu X, Ke C, Zhu X. Neuroligin1 Contributes to Neuropathic Pain by Promoting Phosphorylation of Cofilin in Excitatory Neurons. Front Mol Neurosci 2021; 14:640533. [PMID: 33716669 PMCID: PMC7947913 DOI: 10.3389/fnmol.2021.640533] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/11/2020] [Accepted: 02/05/2021] [Indexed: 11/13/2022] Open
Abstract
Neuropathic pain is a kind of chronic pain that remains difficult to treat due to its complicated underlying mechanisms. Accumulating evidence has indicated that enhanced synaptic plasticity of nociceptive interneurons in the superficial spinal dorsal horn contributes to the development of neuropathic pain. Neuroligin1 (NL1) is a type of excitatory postsynaptic adhesion molecule, which can mediate excitatory synaptic activity, hence promoting neuronal activation. Vglut2 is the most common marker of excitatory glutamatergic neurons. To explore the role of NL1 in excitatory neurons in nociceptive regulation, we used transgenic mice with cre recombinase expression driven by the Vglut2 promoter combined with viral vectors to knockdown the expression of NL1 in excitatory neurons in the spinal dorsal horn. We found that NL1 was upregulated in the L4-L6 spinal dorsal horn in Vglut2-cre+/- mouse subjected to spared nerve injury (SNI). Meanwhile, the expression of phosphorylated cofilin (p-cofilin) and α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid receptor subunit 1 (GluR1) was also increased. Spinal microinjection of a cre-dependent NL1-targeting RNAi in Vglut2-cre+/- mouse alleviated the neuropathic pain-induced mechanical hypersensitivity and reduced the increase in p-cofilin and GluR1 caused by SNI. Taken together, NL1 in excitatory neurons regulates neuropathic pain by promoting the SNI-dependent increase in p-cofilin and GluR1 in the spinal dorsal horn. Our study provides a better understanding of the role of NL1 in excitatory neurons, which might represent a possible therapeutic target for alleviating neuropathic pain.
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Affiliation(s)
- Junlin Ouyang
- Department of Orthopedic Rehabilitation, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Xiaping Chen
- Department of Scientific Research, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Shanchun Su
- Department of Anesthesiology, Institute of Anesthesiology and Pain (IAP), Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Xiaohui Li
- Department of Anesthesiology, Institute of Anesthesiology and Pain (IAP), Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Xueqin Xu
- Department of Anesthesiology, Institute of Anesthesiology and Pain (IAP), Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Xinhua Yu
- Department of Orthopedic Rehabilitation, Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Changbin Ke
- Department of Anesthesiology, Institute of Anesthesiology and Pain (IAP), Taihe Hospital, Hubei University of Medicine, Shiyan, China
| | - Xiaohu Zhu
- Department of Orthopedic Rehabilitation, Taihe Hospital, Hubei University of Medicine, Shiyan, China
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Liu H, Su D, Liu L, Chen L, Zhao Y, Chan SO, Zhang W, Wang Y, Wang J. Identification of a new functional domain of Nogo-A that promotes inflammatory pain and inhibits neurite growth through binding to NgR1. FASEB J 2020; 34:10948-10965. [PMID: 32598099 DOI: 10.1096/fj.202000377r] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2020] [Revised: 05/28/2020] [Accepted: 06/08/2020] [Indexed: 01/10/2023]
Abstract
Nogo-A is a key inhibitory molecule to axon regeneration, and plays diverse roles in other pathological conditions, such as stroke, schizophrenia, and neurodegenerative diseases. Nogo-66 and Nogo-Δ20 fragments are two known functional domains of Nogo-A, which act through the Nogo-66 receptor (NgR1) and sphingosine-1-phosphate receptor 2 (S1PR2), respectively. Here, we reported a new functional domain of Nogo-A, Nogo-A aa 846-861, was identified in the Nogo-A-specific segment that promotes complete Freund's adjuvant (CFA)-induced inflammatory pain. Intrathecal injection of its antagonist peptide 846-861PE or the specific antibody attenuated the CFA-induced inflammatory heat hyperalgesia. The 846-861 PE reduced the content of transient receptor potential vanilloid subfamily member 1 (TRPV1) in dorsal root ganglia (DRG) and decreased the response of DRG neurons to capsaicin. These effects were accompanied by a reduction in LIMK/cofilin phosphorylation and actin polymerization. GST pull-down and fluorescence resonance energy transfer (FRET) assays both showed that Nogo-A aa 846-861 bound to NgR1. Moreover, we demonstrated that Nogo-A aa 846-861 inhibited neurite outgrowth from cortical neurons and DRG explants. We concluded that Nogo-A aa 846-861 is a novel ligand of NgR1, which activates the downstream signaling pathways that inhibit axon growth and promote inflammatory pain.
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Affiliation(s)
- Huaicun Liu
- Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Dongqiang Su
- Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Lei Liu
- Department of Neurobiology, School of Basic Medical Sciences and Neuroscience Research Institute, Key Lab for Neuroscience, Ministry of Education of China and National Health Commission and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China.,PKU-IDG/McGovern Institute for Brain Research, Peking University, Beijing, China
| | - Ling Chen
- Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Yan Zhao
- Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Sun-On Chan
- School of Biomedical Sciences, Faculty of Medicine, The Chinese University of Hong Kong, Hong Kong SAR, China
| | - Weiguang Zhang
- Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences, Peking University, Beijing, China
| | - Yun Wang
- Department of Neurobiology, School of Basic Medical Sciences and Neuroscience Research Institute, Key Lab for Neuroscience, Ministry of Education of China and National Health Commission and State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing, China.,PKU-IDG/McGovern Institute for Brain Research, Peking University, Beijing, China
| | - Jun Wang
- Department of Human Anatomy, Histology and Embryology, School of Basic Medical Sciences, Peking University, Beijing, China
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Electroacupuncture Alleviates Experimental Chronic Inflammatory Pain by Inhibiting Calcium Voltage-Gated Channel-Mediated Inflammation. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:7061972. [PMID: 32104194 PMCID: PMC7035529 DOI: 10.1155/2020/7061972] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/08/2019] [Revised: 12/01/2019] [Accepted: 12/10/2019] [Indexed: 12/17/2022]
Abstract
Background Both experimental and clinical studies have shown that electroacupuncture (EA) administration ameliorates chronic inflammatory pain (CIP). However, the multifaceted mechanism underlying the effects of EA on CIP is poorly understood. In this study, the mRNA transcriptome was used to study various therapeutic targets of EA. Methods Using RNA-sequencing, protein-coding mRNA expression profiles of the L4-L5 dorsal root ganglion (DRG) were examined in the control (CN), complete Freund's adjuvant- (CFA-) induced CIP, and EA-treated CIP groups. A series of bioinformatics analyses was performed; “EA-reversed upregulated genes with CIP” (up-DEGs) and “EA-reversed downregulated genes with CIP” (down-DEGs) were identified. Thereafter, based on up-DEGs and down-DEGs, biological functions and signaling pathways were enriched using gene ontology (GO) and Kyoto encyclopedia of genes and genomes (KEGG) pathway analyses. Results In total, 189 DEGs were identified, including 134 up- and 55 down-DEGs, which were enriched in arachidonic acid metabolism (rno00590), glutamatergic synapse (rno04724), serotonergic synapse (rno04726), FoxO signaling pathway (rno04068), insulin signaling pathway (rno04910), amyotrophic lateral sclerosis (rno05014), cholinergic synapse (rno04725), ECM-receptor interaction (rno04512), and choline metabolism in cancer (rno05231). Conclusion We identified a few GOs, pathways, and genes that could play key roles in the amelioration of CIP by EA. Hence, this study may provide a theoretical basis for CIP amelioration by EA.
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