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Wu SJ, Lan XY, Shi Y, Liu YN, Zhang XX, Zhang Q, Gao YB, Li J, Yang X, Bai HH. Spinal PTP1B Regulated NMDA Receptor-mediated Nociceptive Transmission and Peripheral Inflammation-induced Pain Sensitization. Mol Neurobiol 2024:10.1007/s12035-024-04519-4. [PMID: 39322833 DOI: 10.1007/s12035-024-04519-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2024] [Accepted: 09/21/2024] [Indexed: 09/27/2024]
Abstract
Protein tyrosine phosphatases (PTPs) catalyze the dephosphorylation of several pain-related substrates in spinal cord dorsal horn and are critically involved in the modification of pain transmission. The current study demonstrated that protein tyrosine phosphatase 1B (PTP1B), a unique endoplasmic reticulum-resident member of PTP family, displayed an activity-dependent increase in its protein expression and synaptic localization in spinal dorsal horn of adult male rats. PTP1B interacted with the Src Homology 3 (SH3) domain of Synapse-Associated Protein 102 (SAP102), one of the postsynaptic scaffolding proteins that anchored PTP1B at postsynaptic sites. The SAP102-tethered PTP1B augmented the synaptic transmission mediated specifically by GluN2B subunit-containing N-methyl-D-aspartate subtype glutamate receptors. Interference with PTP1B activity or disruption of its interaction with SAP102 attenuated GluN2B-mediated nociceptive transmission and ameliorated pain sensitization induced by intraplantar injection of Complete Freund's Adjuvant. These data suggested that the activity-dependent synaptic redistribution of PTP1B served as an important mechanism regulating GluN2B receptor activity and that manipulation of PTP1B synaptic targeting might represent an effective approach for the treatment of chronic inflammatory pain.
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Affiliation(s)
- Shu-Jin Wu
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu, P R China
| | - Xin-Yi Lan
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu, P R China
| | - Yue Shi
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu, P R China
| | - Yan-Ni Liu
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu, P R China
| | - Xiao-Xi Zhang
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu, P R China
| | - Qi Zhang
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu, P R China
| | - Yu-Bo Gao
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu, P R China
| | - Juan Li
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu, P R China
| | - Xian Yang
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu, P R China
| | - Hu-Hu Bai
- School of Life Science, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu, P R China.
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, No. 222 South Tianshui Road, Lanzhou, 730000, Gansu, P R China.
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2
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Bai HH, Wang KL, Zeng XR, Li J, Li Y, Xu JY, Zhang Y, Jiang HF, Yang X, Suo ZW, Hu XD. GPR39 regulated spinal glycinergic inhibition and mechanical inflammatory pain. SCIENCE ADVANCES 2024; 10:eadj3808. [PMID: 38306424 PMCID: PMC10836721 DOI: 10.1126/sciadv.adj3808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/05/2023] [Accepted: 01/04/2024] [Indexed: 02/04/2024]
Abstract
G protein-coupled receptor 39 (GPR39) senses the change of extracellular divalent zinc ion and signals through multiple G proteins to a broad spectrum of downstream effectors. Here, we found that GPR39 was prevalent at inhibitory synapses of spinal cord somatostatin-positive (SOM+) interneurons, a mechanosensitive subpopulation that is critical for the conveyance of mechanical pain. GPR39 complexed specifically with inhibitory glycine receptors (GlyRs) and helped maintain glycinergic transmission in a manner independent of G protein signalings. Targeted knockdown of GPR39 in SOM+ interneurons reduced the glycinergic inhibition and facilitated the excitatory output from SOM+ interneurons to spinoparabrachial neurons that engaged superspinal neural circuits encoding both the sensory discriminative and affective motivational domains of pain experience. Our data showed that pharmacological activation of GPR39 or augmenting GPR39 interaction with GlyRs at the spinal level effectively alleviated the sensory and affective pain induced by complete Freund's adjuvant and implicated GPR39 as a promising therapeutic target for the treatment of inflammatory mechanical pain.
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Affiliation(s)
- Hu-Hu Bai
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
- School of Life Science, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Kang-Li Wang
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Xiang-Ru Zeng
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Jing Li
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Yuan Li
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Jia-Yu Xu
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Yue Zhang
- School of Public Health, Gansu University of Chinese medicine, Lanzhou, Gansu 730000, P.R. China
| | - Hai-Feng Jiang
- School of Public Health, Gansu University of Chinese medicine, Lanzhou, Gansu 730000, P.R. China
| | - Xian Yang
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Zhan-Wei Suo
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
| | - Xiao-Dong Hu
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, Lanzhou, Gansu 730000, P.R. China
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3
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Pan L, Li T, Wang R, Deng W, Pu H, Deng M. Roles of Phosphorylation of N-Methyl-D-Aspartate Receptor in Chronic Pain. Cell Mol Neurobiol 2023; 43:155-175. [PMID: 35032275 DOI: 10.1007/s10571-022-01188-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2021] [Accepted: 01/03/2022] [Indexed: 01/07/2023]
Abstract
Phosphorylation of N-methyl-D-aspartate receptor (NMDAR) is widely regarded as a vital modification of synaptic function. Various protein kinases are responsible for direct phosphorylation of NMDAR, such as cyclic adenosine monophosphate-dependent protein kinase A, protein kinase C, Ca2+/calmodulin-dependent protein kinase II, Src family protein tyrosine kinases, cyclin-dependent kinase 5, and casein kinase II. The detailed function of these kinases on distinct subunits of NMDAR has been reported previously and contributes to phosphorylation at sites predominately within the C-terminal of NMDAR. Phosphorylation underlies both structural and functional changes observed in chronic pain, and studies have demonstrated that inhibitors of kinases are significantly effective in alleviating pain behavior in different chronic pain models. In addition, the exploration of drugs that aim to disrupt the interaction between kinases and NMDAR is promising in clinical research. Based on research regarding the modulation of NMDAR in chronic pain models, this review provides an overview of the phosphorylation of NMDAR-related mechanisms underlying chronic pain to elucidate molecular and pharmacologic references for chronic pain management.
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Affiliation(s)
- Liangyu Pan
- Department of Biochemistry and Molecular Biology and Hunan Province Key Laboratory of Basic and Applied Hematology, School of Life Sciences, Central South University, Changsha, 410013, Hunan, China.,Hunan Key Laboratory of Animal Models for Human Diseases & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, 410013, Hunan, China
| | - Tiansheng Li
- Department of Biochemistry and Molecular Biology and Hunan Province Key Laboratory of Basic and Applied Hematology, School of Life Sciences, Central South University, Changsha, 410013, Hunan, China.,Hunan Key Laboratory of Animal Models for Human Diseases & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, 410013, Hunan, China
| | - Rui Wang
- Department of Biochemistry and Molecular Biology and Hunan Province Key Laboratory of Basic and Applied Hematology, School of Life Sciences, Central South University, Changsha, 410013, Hunan, China.,Hunan Key Laboratory of Animal Models for Human Diseases & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, 410013, Hunan, China
| | - Weiheng Deng
- Department of Biochemistry and Molecular Biology and Hunan Province Key Laboratory of Basic and Applied Hematology, School of Life Sciences, Central South University, Changsha, 410013, Hunan, China.,Hunan Key Laboratory of Animal Models for Human Diseases & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, 410013, Hunan, China
| | - Huangsheng Pu
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, 410073, Hunan, China.
| | - Meichun Deng
- Department of Biochemistry and Molecular Biology and Hunan Province Key Laboratory of Basic and Applied Hematology, School of Life Sciences, Central South University, Changsha, 410013, Hunan, China. .,Hunan Key Laboratory of Animal Models for Human Diseases & Hunan Key Laboratory of Medical Genetics, School of Life Sciences, Central South University, Changsha, 410013, Hunan, China.
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4
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Yuan XC, Wang YY, Tian LX, Yan XJ, Guo YX, Zhao YL, Baba SS, Jia H, Wang HS, Li M, Huo FQ. Spinal 5-HT2A Receptor is Involved in Electroacupuncture Inhibition of Chronic Pain. Mol Pain 2022; 18:17448069221087583. [PMID: 35240891 PMCID: PMC9006364 DOI: 10.1177/17448069221087583] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Knee osteoarthritis (KOA) is a highly prevalent, chronic joint disorder, and it is a typical disease which can develop chronic pain. Our previous study has proved that endocannabinoid (2-AG)-CB1R-GABA-5-HT pathway is involved in electroacupuncture (EA) mediated inhibition of chronic pain. However, it is still unclear which among the 5-HT receptor subtype is involved in EA evoked 5-HT mediated inhibition of chronic pain in the dorsal spinal cord. 5-HT2A is a G protein-coupled receptor and it is involved in 5-HT descending pain modulation system. We found that EA treatment at frequency of 2 Hz +1 mA significantly increased the expression of 5-HT2A receptor in the dorsal spinal cord and intrathecal injection of 5-HT2A receptor antagonist or agonist reversed or mimicked the analgesic effect of EA in each case respectively. Intrathecal injection of a selective GABAA receptor antagonist Bicuculline also reversed the EA effect on pain hypersensitivity. Additionally, EA treatment reversed the reduced expression of GABAA receptor and KCC2 in the dorsal spinal cord of KOA mice. Furthermore, we demonstrated that intrathecal 5-HT2A receptor antagonist/agonist reversed or mimicked the effect of EA up-regulate of KCC2 expression, respectively. Similarly, intrathecal injection of PLC and PKC inhibitors prevented both anti-allodynic effect and up-regulation of KCC2 expression by EA treatment. Our data suggest that EA treatment up-regulated KCC2 expression through activating 5-HT2A-Gq-PLC-PKC pathway and enhanced the inhibitory function of GABAA receptor, thereby inhibiting chronic pain in a mouse model of KOA.
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Affiliation(s)
| | | | - Li-Xia Tian
- Department of Physiology and Pathophysiology
| | | | - Yi-Xiao Guo
- Department of Physiology and Pathophysiology
| | | | | | | | | | - Man Li
- Department of Neurobiology
| | - Fu-Quan Huo
- Department of Physiology and Pathophysiology
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5
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Yuan XC, Yan XJ, Tian LX, Guo YX, Zhao YL, Baba SS, Wang YY, Liang LL, Jia H, Xu LP, Li L, Lin H, Huo FQ. 5-HT 7 Receptor Is Involved in Electroacupuncture Inhibition of Chronic Pain in the Spinal Cord. Front Neurosci 2021; 15:733779. [PMID: 34602973 PMCID: PMC8484641 DOI: 10.3389/fnins.2021.733779] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Accepted: 08/16/2021] [Indexed: 11/13/2022] Open
Abstract
Knee osteoarthritis (KOA) is a common and disabling condition characterized by attacks of pain around the joints, and it is a typical disease that develops chronic pain. Previous studies have proved that 5-HT1, 5-HT2, and 5-HT3 receptors in the spinal cord are involved in electroacupuncture (EA) analgesia. The 5-HT7 receptor plays antinociceptive role in the spinal cord. However, it is unclear whether the 5-HT7 receptor is involved in EA analgesia. The 5-HT7 receptor is a stimulatory G-protein (Gs)-coupled receptor that activates adenylyl cyclase (AC) to stimulate cyclic adenosine monophosphate (cAMP) formation, which in turn activates protein kinase A (PKA). In the present study, we found that EA significantly increased the tactile threshold and the expression of the 5-HT7 receptor in the dorsal spinal cord. Intrathecal injection of 5-HT7 receptor agonist AS-19 mimicked the analgesic effect of EA, while a selective 5-HT7 receptor antagonist reversed this effect. Moreover, intrathecal injection of AC and PKA antagonists prior to EA intervention prevented its anti-allodynic effect. In addition, GABAA receptor antagonist bicuculline administered (intrathecal, i.t.) prior to EA intervention blocked the EA effect on pain hypersensitivity. Our data suggest that the spinal 5-HT7 receptor activates GABAergic neurons through the Gs–cAMP–PKA pathway and participates in EA-mediated inhibition of chronic pain in a mouse model of KOA.
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Affiliation(s)
- Xiao-Cui Yuan
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Institute of Neuroscience, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, China.,Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an Jiaotong University, Xi'an, China
| | - Xiang-Ji Yan
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Institute of Neuroscience, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, China.,Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an Jiaotong University, Xi'an, China
| | - Li-Xia Tian
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Institute of Neuroscience, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, China.,Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an Jiaotong University, Xi'an, China
| | - Yi-Xiao Guo
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Institute of Neuroscience, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, China.,Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an Jiaotong University, Xi'an, China
| | - Yu-Long Zhao
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Institute of Neuroscience, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, China.,Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an Jiaotong University, Xi'an, China
| | - Sani Sa'idu Baba
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Institute of Neuroscience, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, China.,Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an Jiaotong University, Xi'an, China
| | - Yu-Ying Wang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Institute of Neuroscience, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, China.,Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an Jiaotong University, Xi'an, China
| | - Ling-Li Liang
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Institute of Neuroscience, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, China.,Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an Jiaotong University, Xi'an, China
| | - Hong Jia
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Institute of Neuroscience, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, China.,Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an Jiaotong University, Xi'an, China
| | - Lin-Ping Xu
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Institute of Neuroscience, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, China.,Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an Jiaotong University, Xi'an, China
| | - Li Li
- Key Laboratory of Anesthesiology of Zhejiang Province, Department of Anesthesiology, The Second Affiliated Hospital, Wenzhou Medical University, Wenzhou, China
| | - Han Lin
- Key Laboratory of Anesthesiology of Zhejiang Province, Department of Anesthesiology, The Second Affiliated Hospital, Wenzhou Medical University, Wenzhou, China
| | - Fu-Quan Huo
- Department of Physiology and Pathophysiology, School of Basic Medical Sciences, Institute of Neuroscience, Translational Medicine Institute, Xi'an Jiaotong University Health Science Center, Xi'an, China.,Key Laboratory of Environment and Genes Related to Diseases, Ministry of Education, Xi'an Jiaotong University, Xi'an, China
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6
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Altered nociception in Alzheimer disease is associated with striatal-enriched protein tyrosine phosphatase signaling. Pain 2021; 162:1669-1680. [PMID: 33433143 DOI: 10.1097/j.pain.0000000000002180] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2020] [Accepted: 12/18/2020] [Indexed: 01/16/2023]
Abstract
ABSTRACT Alzheimer disease (AD) is the most common form of dementia, accounting for approximately 60% of cases. In addition to memory loss, changes in pain sensitivity are found in a substantial proportion of patients with AD. However, the mechanism of nociception deficits in AD is still unclear. Here, we hypothesize that the nociception abnormality in AD is due to the aberrant activation of striatal-enriched protein tyrosine phosphatase (STEP) signaling, which modulates proteins related to nociception transduction. Our results indicated that the transgenic mice carrying human amyloid precursor protein (APP) gene had lower sensitivity to mechanical and thermal stimulation than the wild-type group at the ages of 6, 9, and 12 months. These APP mice exhibited elevated STEP activity and decreased phosphorylation of proteins involved in nociception transduction in hippocampi. The pharmacological inhibition of STEP activity using TC-2153 further reversed nociception and cognitive deficits in the APP mice. Moreover, the phosphorylation of nociception-related proteins in the APP mice was also rescued after STEP inhibitor treatment, indicating the key role of STEP in nociception alteration. In summary, this study identifies a mechanism for the reduced nociceptive sensitivity in an AD mouse model that could serve as a therapeutic target to improve the quality of life for patients with AD.
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7
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Zhao X, Zhou Z. Expression and Regulation of the GABA A Receptor/STEP61 Signaling Pathway in Cerebral Cortical Neurons Treated with Emulsified Isoflurane In Vitro. ACS Chem Neurosci 2020; 11:4329-4335. [PMID: 33232128 DOI: 10.1021/acschemneuro.0c00586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
Emulsified isoflurane (EISO) is an intravenous anesthetic. However, researchers have not clearly determined how emulsified isoflurane affects the central nervous system during the process of anesthesia. The aim of this study was to explore changes in the gamma-aminobutyric acid type A receptor subunit (GABAA), 61 kD isoform of striatal-enriched protein phosphatase (STEP61) signaling pathway, and epigenetic regulation in cortical neurons after treatment with emulsified isoflurane. After immunological identification, the isolated neurons were randomly divided into three groups: the blank group (Con), intralipid treatment group (FE), and emulsified isoflurane treatment group (EISO). Neuron viability was assayed using cell counting kit-8 (CCK-8). The expression levels of target nucleic acids, proteins, and corresponding ligands were detected. Using real-time polymerase chain reaction (PCR) to assess the promoter methylation of ion channel proteins in the cerebral cortex of rats anesthetized with EISO, we observed changes in promoter methylation of the genes encoding gamma-aminobutyric acid type A receptor α1 subunit (GABAAα1), N-methyl-d-aspartate receptor subunit 1 (NMDAR1), and mu opioid receptor 1 (OPRM1), accompanied by changes in the levels of their messenger ribonucleic acids (mRNAs) and proteins. The levels of ligands for these receptors were also altered. EISO altered the methylation rate of the promoter region of channel protein-coding genes involved in the GABAA/STEP61 signaling pathway in cerebral cortical neurons to regulate gene expression. The ligands for the receptors were also changed.
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Affiliation(s)
- Xingkai Zhao
- Department of Veterinary Clinical Science, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, P. R. China
| | - Zhenlei Zhou
- Department of Veterinary Clinical Science, College of Veterinary Medicine, Nanjing Agricultural University, Nanjing, 210095, P. R. China
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8
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Telegina DV, Kulikova EA, Kozhevnikova OS, Kulikov AV, Khomenko TM, Volcho KP, Salakhutdinov NF, Kolosova NG. Alterations of STEP46 and STEP61 Expression in the Rat Retina with Age and AMD-Like Retinopathy Development. Int J Mol Sci 2020; 21:E5182. [PMID: 32707818 PMCID: PMC7432912 DOI: 10.3390/ijms21155182] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Revised: 07/16/2020] [Accepted: 07/20/2020] [Indexed: 12/19/2022] Open
Abstract
Tyrosine phosphatase STEP (striatal-enriched tyrosine protein phosphatase) is a brain-specific protein phosphatase and is involved in the pathogenesis of many neurodegenerative diseases. Here, we examined the impact of STEP on the development of age-related macular degeneration (AMD)-like pathology in senescence-accelerated OXYS rats. Using OXYS and Wistar rats (control), we for the first time demonstrated age-dependent changes in Ptpn5 mRNA expression, STEP46 and STEP61 protein levels, and their phosphatase activity in the retina. The increases in STEP protein levels and the decrease of total and STEP phosphatase activities in the retina (as compared with Wistar rats) preceded the manifestation of clinical signs of AMD in OXYS rats (age 20 days). There were no differences in these retinal parameters between 13-month-old Wistar rats and OXYS rats with pronounced signs of AMD. Inhibition of STEP with TC-2153 during progressive AMD-like retinopathy (from 9 to 13 months of age) reduced the thickness of the retinal inner nuclear layer, as evidenced by a decreased amount of parvalbumin-positive amacrine neurons. Prolonged treatment with TC-2153 had no effect on Ptpn5 mRNA expression, STEP46 and STEP61 protein levels, and their phosphatase activity in the OXYS retina. Thus, TC-2153 may negatively affect the retina through mechanisms unrelated to STEP.
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Affiliation(s)
- Darya V. Telegina
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences (SB RAS), Pr. Lavrentyeva 10, 630090 Novosibirsk, Russia; (E.A.K.); (O.S.K.); (A.V.K.); (N.G.K.)
| | - Elizabeth A. Kulikova
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences (SB RAS), Pr. Lavrentyeva 10, 630090 Novosibirsk, Russia; (E.A.K.); (O.S.K.); (A.V.K.); (N.G.K.)
| | - Oyuna S. Kozhevnikova
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences (SB RAS), Pr. Lavrentyeva 10, 630090 Novosibirsk, Russia; (E.A.K.); (O.S.K.); (A.V.K.); (N.G.K.)
| | - Alexander V. Kulikov
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences (SB RAS), Pr. Lavrentyeva 10, 630090 Novosibirsk, Russia; (E.A.K.); (O.S.K.); (A.V.K.); (N.G.K.)
| | - Tatyana M. Khomenko
- N.N. Vorozhtsov Institute of Organic Chemistry, SB RAS, 9 Lavrentieva Avenue, 630090 Novosibirsk, Russia; (T.M.K.); (K.P.V.); (N.F.S.)
| | - Konstantin P. Volcho
- N.N. Vorozhtsov Institute of Organic Chemistry, SB RAS, 9 Lavrentieva Avenue, 630090 Novosibirsk, Russia; (T.M.K.); (K.P.V.); (N.F.S.)
| | - Nariman F. Salakhutdinov
- N.N. Vorozhtsov Institute of Organic Chemistry, SB RAS, 9 Lavrentieva Avenue, 630090 Novosibirsk, Russia; (T.M.K.); (K.P.V.); (N.F.S.)
| | - Nataliya G. Kolosova
- Institute of Cytology and Genetics, Siberian Branch of Russian Academy of Sciences (SB RAS), Pr. Lavrentyeva 10, 630090 Novosibirsk, Russia; (E.A.K.); (O.S.K.); (A.V.K.); (N.G.K.)
- N.N. Vorozhtsov Institute of Organic Chemistry, SB RAS, 9 Lavrentieva Avenue, 630090 Novosibirsk, Russia; (T.M.K.); (K.P.V.); (N.F.S.)
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9
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Dedek A, Xu J, Kandegedara CM, Lorenzo LÉ, Godin AG, De Koninck Y, Lombroso PJ, Tsai EC, Hildebrand ME. Loss of STEP61 couples disinhibition to N-methyl-d-aspartate receptor potentiation in rodent and human spinal pain processing. Brain 2020; 142:1535-1546. [PMID: 31135041 PMCID: PMC6536915 DOI: 10.1093/brain/awz105] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Revised: 02/04/2019] [Accepted: 02/25/2019] [Indexed: 12/13/2022] Open
Abstract
Dysregulated excitability within the spinal dorsal horn is a critical mediator of chronic pain. In the rodent nerve injury model of neuropathic pain, BDNF-mediated loss of inhibition (disinhibition) gates the potentiation of excitatory GluN2B N-methyl-d-aspartate receptor (NMDAR) responses at lamina I dorsal horn synapses. However, the centrality of this mechanism across pain states and species, as well as the molecular linker involved, remain unknown. Here, we show that KCC2-dependent disinhibition is coupled to increased GluN2B-mediated synaptic NMDAR responses in a rodent model of inflammatory pain, with an associated downregulation of the tyrosine phosphatase STEP61. The decreased activity of STEP61 is both necessary and sufficient to prime subsequent phosphorylation and potentiation of GluN2B NMDAR by BDNF at lamina I synapses. Blocking disinhibition reversed the downregulation of STEP61 as well as inflammation-mediated behavioural hypersensitivity. For the first time, we characterize GluN2B-mediated NMDAR responses at human lamina I synapses and show that a human ex vivo BDNF model of pathological pain processing downregulates KCC2 and STEP61 and upregulates phosphorylated GluN2B at dorsal horn synapses. Our results demonstrate that STEP61 is the molecular brake that is lost following KCC2-dependent disinhibition and that the decrease in STEP61 activity drives the potentiation of excitatory GluN2B NMDAR responses in rodent and human models of pathological pain. The ex vivo human BDNF model may thus form a translational bridge between rodents and humans for identification and validation of novel molecular pain targets.
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Affiliation(s)
- Annemarie Dedek
- Department of Neuroscience, Carleton University, Ottawa, ON, Canada.,Neuroscience Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | - Jian Xu
- Child Study Center, Yale University School of Medicine, New Haven, CT, USA
| | - Chaya M Kandegedara
- Department of Neuroscience, Carleton University, Ottawa, ON, Canada.,Neuroscience Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada
| | | | - Antoine G Godin
- CERVO Brain Research Centre, Quebec Mental Health Institute, Quebec, QC, Canada.,Department of Psychiatry and Neuroscience, Université Laval, Quebec, QC, Canada
| | - Yves De Koninck
- CERVO Brain Research Centre, Quebec Mental Health Institute, Quebec, QC, Canada.,Department of Psychiatry and Neuroscience, Université Laval, Quebec, QC, Canada.,Graduate Program in Neurobiology, Université Laval, Quebec, QC, Canada
| | - Paul J Lombroso
- Child Study Center, Yale University School of Medicine, New Haven, CT, USA
| | - Eve C Tsai
- Neuroscience Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada.,Brain and Mind Research Institute, University of Ottawa, Ottawa, ON, Canada
| | - Michael E Hildebrand
- Department of Neuroscience, Carleton University, Ottawa, ON, Canada.,Neuroscience Program, Ottawa Hospital Research Institute, Ottawa, ON, Canada.,Brain and Mind Research Institute, University of Ottawa, Ottawa, ON, Canada
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10
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Spinophilin negatively controlled the function of transient receptor potential vanilloid 1 in dorsal root ganglia neurons of mice. Eur J Pharmacol 2019; 863:172700. [DOI: 10.1016/j.ejphar.2019.172700] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2019] [Revised: 09/16/2019] [Accepted: 09/25/2019] [Indexed: 01/27/2023]
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11
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Activation of Phosphotyrosine-Mediated Signaling Pathways in the Cortex and Spinal Cord of SOD1 G93A, a Mouse Model of Familial Amyotrophic Lateral Sclerosis. Neural Plast 2018; 2018:2430193. [PMID: 30154836 PMCID: PMC6098854 DOI: 10.1155/2018/2430193] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2018] [Revised: 06/06/2018] [Accepted: 07/05/2018] [Indexed: 12/12/2022] Open
Abstract
Degeneration of cortical and spinal motor neurons is the typical feature of amyotrophic lateral sclerosis (ALS), a progressive neurodegenerative disease for which a pathogenetic role for the Cu/Zn superoxide dismutase (SOD1) has been demonstrated. Mice overexpressing a mutated form of the SOD1 gene (SOD1G93A) develop a syndrome that closely resembles the human disease. The SOD1 mutations confer to this enzyme a “gain-of-function,” leading to increased production of reactive oxygen species. Several oxidants induce tyrosine phosphorylation through direct stimulation of kinases and/or phosphatases. In this study, we analyzed the activities of src and fyn tyrosine kinases and of protein tyrosine phosphatases in synaptosomal fractions prepared from the motor cortex and spinal cord of transgenic mice expressing SOD1G93A. We found that (i) protein phosphotyrosine level is increased, (ii) src and fyn activities are upregulated, and (iii) the activity of tyrosine phosphatases, including the striatal-enriched tyrosine phosphatase (STEP), is significantly decreased. Moreover, the NMDA receptor (NMDAR) subunit GluN2B tyrosine phosphorylation was upregulated in SOD1G93A. Tyrosine phosphorylation of GluN2B subunits regulates the NMDAR function and the recruitment of downstream signaling molecules. Indeed, we found that proline-rich tyrosine kinase 2 (Pyk2) and ERK1/2 kinase are upregulated in SOD1G93A mice. These results point out an involvement of tyrosine kinases and phosphatases in the pathogenesis of ALS.
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12
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Lee YH, Huang YF, Chou HH, Lin WT, Yang HW, Lin-Shiau SY. Studies on a novel regimen for management of orofacial pain and morphine tolerance. J Dent Sci 2018; 13:131-137. [PMID: 30895108 PMCID: PMC6388850 DOI: 10.1016/j.jds.2017.08.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Revised: 08/08/2017] [Indexed: 11/29/2022] Open
Abstract
Background/purpose The prevalence of orofacial pain is high but the etiology of orofacial pain is not well understood. Because of clinical treatment is not so effective, it is urgent to explore novel regimens with more effective and less side effects for clinical application. Materials and methods Male mice (ICR strain) were injected with capsaicin (10μg/5 μl) in vibrissa pad. Spontaneous orofacial pain in 20 min was recorded after receiving capsaicin to quantify the nociceptive level. Green tea polyphenols (GTP 60 mg/kg), memantine (Mem 10 mg/kg), and GTPm (GTP 30 mg/kg plus Mem 3 mg/kg) were dissolved in 2% carboxymethyl cellulose, which was orally administered to mice twice per day and five times per week consecutively for 2 weeks. TruScan photobeam tracking was used to record changes of behavior and locomotor activities. Results GTPm by itself attenuated orofacial pain induced by capsaicin. Moreover, GTPm enhanced morphine analgesic effects, reduced morphine depressant side effects and delayed morphine tolerance. Along with this experiment, GTPm was tested on the hot plate (52 °C)-induced peripheral thermal pain. It was found that both memantine and GTPm reduced morphine-analgesia in hind paw thermal pain. Conclusion In this study, GTP (60 mg/kg/day) orally administrated produced a significant analgesic effect on capsaicin–induced orofacial pain. Memantine combined with GTP synergistically not only reduced orofacial pain but also enhanced morphine analgesic effects. Thus, a new regimen of GTPm orally administered twice per day attenuated orofacial pain after consecutive 5 days.
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13
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Zhao JY, Yang L, Bai HH, Liu JP, Suo ZW, Yang X, Hu XD. Inhibition of protein tyrosine phosphatase 1B in spinal cord dorsal horn of rats attenuated diabetic neuropathic pain. Eur J Pharmacol 2018. [DOI: 10.1016/j.ejphar.2018.03.012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
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14
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Liu JP, He YT, Duan XL, Suo ZW, Yang X, Hu XD. Enhanced Activities of δ Subunit-containing GABAA Receptors Blocked Spinal Long-term Potentiation and Attenuated Formalin-induced Spontaneous Pain. Neuroscience 2018; 371:155-165. [DOI: 10.1016/j.neuroscience.2017.12.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Revised: 11/11/2017] [Accepted: 12/02/2017] [Indexed: 01/22/2023]
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15
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Suo ZW, Liu JP, Xue M, Yang YH, Yang X, Xie J, Hu XD. Striatal-enriched phosphatase 61 inhibited the nociceptive plasticity in spinal cord dorsal horn of rats. Neuroscience 2017; 352:97-105. [PMID: 28389375 DOI: 10.1016/j.neuroscience.2017.03.048] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2016] [Revised: 03/09/2017] [Accepted: 03/27/2017] [Indexed: 01/09/2023]
Abstract
Striatal-enriched phosphatase 61 (STEP61) is a member of intracellular protein tyrosine phosphatases, which is involved in the regulation of synaptic plasticity and a line of neuropsychiatric disorders. This protein tyrosine phosphatase is also abundant in pain-related spinal cord dorsal horn neurons. However, whether and how this tyrosine phosphatase modulates the nociceptive plasticity and behavioral hypersensitivity remain largely unknown. The present study recorded the long-term potentiation (LTP) of primary afferent C fiber-evoked field potentials in vivo in superficial dorsal horn of rats, and tested the possible role of STEP61 in spinal LTP. We found that LTP induction significantly increased STEP61 phosphorylation at Ser221 residue, a key molecular event that has been shown to impair the phosphatase activity. The STEP61 hypoactivity allowed for the activation of three substrates, GluN2B subunit-containing N-methyl-d-aspartate-subtype glutamate receptors, Src-family protein tyrosine kinase member Fyn and extracellular signal-regulated kinase 1/2, through which the thresholds for LTP induction were noticeably decreased. To reinstate STEP61 activity, we overexpressed wild-type STEP61 [STEP61(WT)] in spinal dorsal horn, finding that STEP61(WT) completely blunted LTP induction. Behavioral tests showed that LTP blockade by STEP61(WT) correlated with a long-lasting alleviation of thermal hypersensitivity and mechanical allodynia induced by chronic constriction injury of sciatic nerves. These data implicated that STEP61 exerted a negative control over spinal nociceptive plasticity, which might have therapeutic benefit in pathological pain.
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Affiliation(s)
- Zhan-Wei Suo
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Jiang-Ping Liu
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Man Xue
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Yun-Hui Yang
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Xian Yang
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, Lanzhou, Gansu 730000, PR China
| | - Jun Xie
- The Central Blood Station of Jiuquan, Gansu Province, PR China
| | - Xiao-Dong Hu
- Department of Molecular Pharmacology, School of Pharmacy, Lanzhou University, Lanzhou, Gansu 730000, PR China.
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16
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Xue M, Liu J, Yang Y, Suo Z, Yang X, Hu X. Inhibition of α5 subunit-containing GABAAreceptors facilitated spinal nociceptive transmission and plasticity. Eur J Pain 2017; 21:1061-1071. [DOI: 10.1002/ejp.1009] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/12/2016] [Indexed: 01/09/2023]
Affiliation(s)
- M. Xue
- Department of Molecular Pharmacology, School of Pharmacy; Lanzhou University; China
| | - J.P. Liu
- Department of Molecular Pharmacology, School of Pharmacy; Lanzhou University; China
| | - Y.H. Yang
- Department of Molecular Pharmacology, School of Pharmacy; Lanzhou University; China
| | - Z.W. Suo
- Department of Molecular Pharmacology, School of Pharmacy; Lanzhou University; China
| | - X. Yang
- Department of Molecular Pharmacology, School of Pharmacy; Lanzhou University; China
| | - X.D. Hu
- Department of Molecular Pharmacology, School of Pharmacy; Lanzhou University; China
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17
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Striatal-enriched protein tyrosine phosphatase modulates nociception: evidence from genetic deletion and pharmacological inhibition. Pain 2016; 157:377-386. [PMID: 26270590 DOI: 10.1097/j.pain.0000000000000329] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
The information from nociceptors is processed in the dorsal horn of the spinal cord by complex circuits involving excitatory and inhibitory interneurons. It is well documented that GluN2B and ERK1/2 phosphorylation contributes to central sensitization. Striatal-enriched protein tyrosine phosphatase (STEP) dephosphorylates GluN2B and ERK1/2, promoting internalization of GluN2B and inactivation of ERK1/2. The activity of STEP was modulated by genetic (STEP knockout mice) and pharmacological (recently synthesized STEP inhibitor, TC-2153) approaches. STEP(61) protein levels in the lumbar spinal cord were determined in male and female mice of different ages. Inflammatory pain was induced by complete Freund's adjuvant injection. Behavioral tests, immunoblotting, and electrophysiology were used to analyze the effect of STEP on nociception. Our results show that both genetic deletion and pharmacological inhibition of STEP induced thermal hyperalgesia and mechanical allodynia, which were accompanied by increased pGluN2B(Tyr1472) and pERK1/2(Thr202/Tyr204)levels in the lumbar spinal cord. Striatal-enriched protein tyrosine phosphatase heterozygous and knockout mice presented a similar phenotype. Furthermore, electrophysiological experiments showed that TC-2153 increased C fiber-evoked spinal field potentials. Interestingly, we found that STEP(61) protein levels in the lumbar spinal cord inversely correlated with thermal hyperalgesia associated with age and female gender in mice. Consistently, STEP knockout mice failed to show age-related thermal hyperalgesia, although gender-related differences were preserved. Moreover, in a model of inflammatory pain, hyperalgesia was associated with increased phosphorylation-mediated STEP(61) inactivation and increased pGluN2B(Tyr1472) and pERK1/2(Thr202/Tyr204)levels in the lumbar spinal cord. Collectively, the present results underscore an important role of spinal STEP activity in the modulation of nociception.
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18
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Activity-dependent dephosphorylation of paxillin contributed to nociceptive plasticity in spinal cord dorsal horn. Pain 2016; 157:652-665. [DOI: 10.1097/j.pain.0000000000000415] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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19
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Spinophilin-Targeted Protein Phosphatase-1 Alleviated Inflammatory Pain by Negative Control of MEK/ERK Signaling in Spinal Cord Dorsal Horn of Rats. J Neurosci 2016; 35:13989-4001. [PMID: 26468199 DOI: 10.1523/jneurosci.2293-15.2015] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
UNLABELLED Protein phosphatase-1 (PP1), anchored by regulatory or targeting proteins at excitatory glutamatergic synapses, controls the phosphorylation of postsynaptic substrates and regulates the neurotransmission and plasticity. Here, we found that spinophilin, an actin-binding protein that targets PP1 at postsynaptic density, served as a scaffold for extracellular signal-regulated kinase (ERK) signaling components. Through the C-terminal PDZ domain, spinophilin directly interacted with ERK and its upstream mitogen-activated protein kinase kinase (MEK). PP1, recruited by spinophilin, gained access to and dephosphorylated these kinases, exerting a tonic inhibition of ERK signaling. The removal of PP1 inhibition by disturbing spinophilin/PP1 interaction allowed a restricted activation of MEK/ERK at synapses, which in turn augmented the synaptic transmission specifically mediated by GluN2B subunit-containing N-methyl-d-aspartate subtype of glutamate receptors. We provided evidence that in pain-related spinal cord dorsal horn, the scaffolding function of spinophilin played an important role in the negative control of ERK-dependent and GluN2B-dependent pain sensitization. Expression of wild-type spinophilin produced an effective analgesic action against chronic inflammatory pain induced by complete Freund's adjuvant in rats. SIGNIFICANCE STATEMENT Extracellular signal-regulated kinase (ERK) relays the signals from multiple transmembrane receptors to a wide range of downstream effectors critical for the regulation of neuronal excitability and plasticity. The strength and duration of ERK signaling is spatiotemporally controlled by protein phosphatases. Sustained activation of ERK has been implicated in a variety of pathological processes. The current study revealed that spinophilin, a well characterized protein phosphatase 1 (PP1) synaptic targeting protein, was able to scaffold mitogen-activated protein kinase kinase (MEK) and ERK for dephosphorylation and inactivation by PP1. The loss of PP1 inhibition, as a result of spinophilin/PP1 dissociation, led to aberrant activation of MEK/ERK signaling, which had important implications for the exaggeration of NMDA receptor-dependent nociceptive synaptic transmission in spinal cord dorsal horn.
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