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Xie J, Zhang Z. Recent Advances and Therapeutic Implications of 2-Oxoglutarate-Dependent Dioxygenases in Ischemic Stroke. Mol Neurobiol 2024; 61:3949-3975. [PMID: 38041714 DOI: 10.1007/s12035-023-03790-1] [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: 08/04/2023] [Accepted: 11/08/2023] [Indexed: 12/03/2023]
Abstract
Ischemic stroke is a common disease with a high disability rate and mortality, which brings heavy pressure on families and medical insurance. Nowadays, the golden treatments for ischemic stroke in the acute phase mainly include endovascular therapy and intravenous thrombolysis. Some drugs are used to alleviate brain injury in patients with ischemic stroke, such as edaravone and 3-n-butylphthalide. However, no effective neuroprotective drug for ischemic stroke has been acknowledged. 2-Oxoglutarate-dependent dioxygenases (2OGDDs) are conserved and common dioxygenases whose activities depend on O2, Fe2+, and 2OG. Most 2OGDDs are expressed in the brain and are essential for the development and functions of the brain. Therefore, 2OGDDs likely play essential roles in ischemic brain injury. In this review, we briefly elucidate the functions of most 2OGDDs, particularly the effects of regulations of 2OGDDs on various cells in different phases after ischemic stroke. It would also provide promising potential therapeutic targets and directions of drug development for protecting the brain against ischemic injury and improving outcomes of ischemic stroke.
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Affiliation(s)
- Jian Xie
- Department of Neurology, Affiliated Zhongda Hospital, Research Institution of Neuropsychiatry, School of Medicine, Southeast University, Nanjing, 210009, Jiangsu, China
| | - Zhijun Zhang
- Department of Neurology, Affiliated Zhongda Hospital, Research Institution of Neuropsychiatry, School of Medicine, Southeast University, Nanjing, 210009, Jiangsu, China.
- Shenzhen Key Laboratory of Precision Diagnosis and Treatment of Depression, Department of Mental Health and Public Health, Faculty of Life and Health Sciences, Shenzhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, Guangdong, China.
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2
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Tu W, Huang X, Liu S, Zhan Y, Cai X, Shao L. The m 6A demethylase fat mass and obesity-associated protein mitigates pyroptosis and inflammation in doxorubicin-induced heart failure via the toll-like receptor 4/NF-κB pathway. Cardiovasc Diagn Ther 2024; 14:158-173. [PMID: 38434564 PMCID: PMC10904293 DOI: 10.21037/cdt-23-326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 11/17/2023] [Indexed: 03/05/2024]
Abstract
Background Doxorubicin (Dox) can induce cardiotoxicity, thereby restricting the utility of this potent drug. Herein, the study ascertained the mechanism of the N6-methyladenosine (m6A) demethylase fat mass and obesity-associated protein (FTO) in pyroptosis and inflammation during Dox-induced heart failure (HF). Methods Serum samples were collected from HF patients for detection of the expression of FTO and toll-like receptor 4 (TLR4). Dox-treated H9C2 cardiomyocytes were chosen for in vitro HF modeling, followed by measurement of FTO and TLR4 expression. Cardiomyocytes were detected for viability, apoptosis, spatial distribution of NOD-, LRR- and pyrin domain-containing protein 3 (NLRP3), and the levels of lactic dehydrogenase, inflammatory factors, oxidative stress markers, and pyroptosis-related proteins. The m6A levels of mRNA were examined. RNA immunoprecipitation (RIP) and mRNA stability measurement were used to determine mRNA and protein expression, and RNA m6A dot blot and methylated-RIP assay were performed to detect m6A methylation levels. The expression of p-NF-κB p65 and p-IκB-α was measured by western blotting. Results In the serum of HF patients, FTO was elevated while TLR4 was decreased. Dox treatment reduced FTO expression and increased m6A methylation levels and TLR4 expression in H9C2 cells. Overexpression of FTO and knockdown of TLR4 reduced apoptosis, cytotoxicity, inflammation, pyroptosis, oxidative stress, NLRP3 co-localization, and fluorescence intensity in Dox-induced H9C2 cells. Mechanistically, FTO resulted in reduced binding activity of YTHDF1 to TLR4 mRNA via m6A demethylation of TLR4, thus declining TLR4, p-NF-κB p65, and p-IκB-α expression. TLR4 knockdown counteracted the effects of FTO knockdown on Dox-induced H9C2 cells. Conclusions FTO alleviated Dox-induced HF by blocking the TLR4/NF-κB pathway.
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Affiliation(s)
- Weiling Tu
- Department of Cardiology, Jiangxi Provincial People’s Hospital, the First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Xiao Huang
- Department of Cardiology, Jiangxi Provincial People’s Hospital, the First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Songtao Liu
- Department of Cardiology, Jiangxi Provincial People’s Hospital, the First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Yuliang Zhan
- Department of Cardiology, Jiangxi Provincial People’s Hospital, the First Affiliated Hospital of Nanchang Medical College, Nanchang, China
| | - Xinyong Cai
- Department of Cardiology, Jiangxi Provincial People’s Hospital, the First Affiliated Hospital of Nanchang Medical College, Nanchang, China
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Zhou HM, Xu HJ, Sun RH, Zhang M, Li XT, Zhao YX, Yang K, Wei R, Liu Q, Li S, Xue Z, Hao LY, Yang L, Wang QH, Wang HJ, Gao F, Cao JL, Pan Z. DNA N6-methyladenine methylase N6AMT1 controls neuropathic pain through epigenetically modifying Kcnj16 in dorsal horn neurons. Pain 2024; 165:75-91. [PMID: 37624905 DOI: 10.1097/j.pain.0000000000002986] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2023] [Accepted: 05/31/2023] [Indexed: 08/27/2023]
Abstract
ABSTRACT Nerve injury-induced aberrant changes in gene expression in spinal dorsal horn neurons are critical for the genesis of neuropathic pain. N6-methyladenine (m 6 A) modification of DNA represents an additional layer of gene regulation. Here, we report that peripheral nerve injury significantly decreased the level of m 6 A-specific DNA methyltransferase 1 ( N6amt1 ) in dorsal horn neurons. This decrease was attributed, at least partly, to a reduction in transcription factor Nr2f6 . Rescuing the decrease in N6amt1 reversed the loss of m 6 A at the promoter for inwardly rectifying potassium channel subfamily J member 16 ( Kcnj16 ), mitigating the nerve injury-induced upregulation of Kcnj16 expression in the dorsal horn and alleviating neuropathic pain hypersensitivities. Conversely, mimicking the downregulation of N6amt1 in naive mice erased DNA m 6 A at the Kcnj16 promoter, elevated Kcnj16 expression, and led to neuropathic pain-like behaviors. Therefore, decreased N6amt1 caused by NR2F6 is required for neuropathic pain, likely through its regulation of m 6 A-controlled KCNJ16 in dorsal horn neurons, suggesting that DNA m 6 A modification may be a potential new target for analgesic and treatment strategies.
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Affiliation(s)
- Hui-Min Zhou
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou Medical University, Xuzhou, China
| | - Heng-Jun Xu
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou Medical University, Xuzhou, China
| | - Run-Hang Sun
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou Medical University, Xuzhou, China
| | - Ming Zhang
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou Medical University, Xuzhou, China
| | - Xiao-Tong Li
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou Medical University, Xuzhou, China
| | - Ya-Xuan Zhao
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou Medical University, Xuzhou, China
| | - Kehui Yang
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou Medical University, Xuzhou, China
| | - Runa Wei
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou Medical University, Xuzhou, China
| | - Qiaoqiao Liu
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou Medical University, Xuzhou, China
| | - Siyuan Li
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou Medical University, Xuzhou, China
| | - Zhouya Xue
- Department of Anesthesiology, Yancheng Affiliated Hospital of Xuzhou Medical University, Yancheng, China
| | - Ling-Yun Hao
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou Medical University, Xuzhou, China
| | - Li Yang
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou Medical University, Xuzhou, China
| | - Qi-Hui Wang
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou Medical University, Xuzhou, China
| | - Hong-Jun Wang
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou Medical University, Xuzhou, China
| | - Fang Gao
- Department of Anesthesiology, The Affiliated Hospital of Xuzhou Medical University, Xuzhou, China
| | - Jun-Li Cao
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou Medical University, Xuzhou, China
| | - Zhiqiang Pan
- Jiangsu Province Key Laboratory of Anesthesiology, Jiangsu Province Key Laboratory of Anesthesia and Analgesia Application Technology, NMPA Key Laboratory for Research and Evaluation of Narcotic and Psychotropic Drugs, Xuzhou Medical University, Xuzhou, China
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Wu L, Tang H. The role of N6-methyladenosine modification in rodent models of neuropathic pain: from the mechanism to therapeutic potential. Biomed Pharmacother 2023; 166:115398. [PMID: 37647691 DOI: 10.1016/j.biopha.2023.115398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2023] [Revised: 08/25/2023] [Accepted: 08/26/2023] [Indexed: 09/01/2023] Open
Abstract
Neuropathic pain (NP) is a common chronic pain condition resulted from lesions or diseases of somatosensory nervous system, but the pathogenesis remains unclear. A growing body of evidence supports the relationship between pathogenesis and N6-methyladenosine (m6A) modifications of RNA. However, studies on the role of m6A modifications in NP are still at an early stage. Elucidating different etiologies is important for understanding the specific pathogenesis of NP. This article provides a comprehensive review on the role of m6A methylation modifications including methyltransferases ("writers"), demethylases ("erasers"), and m6A binding proteins ("readers") in NP models. Further analysis of the pathogenic mechanism relationship between m6A and NP provided novel theoretical and practical significance for clinical treatment of NP.
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Affiliation(s)
- Liping Wu
- Guangxi University of Traditional Chinese Medicine, Nanning, China; The First Clinical Medical College of Guangxi University of Traditional Chinese Medicine, Nanning, China
| | - Hongliang Tang
- Guangxi Traditional Chinese Medicine University Affiliated Fangchenggang Hospital.
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Xu K, Du W, Zhuang X, Liang D, Mo Y, Wang J. Glycogen synthase kinase-3β mediates toll-like receptors 4/nuclear factor kappa-B-activated cerebral ischemia-reperfusion injury through regulation of fat mass and obesity-associated protein. Brain Circ 2023; 9:162-171. [PMID: 38020949 PMCID: PMC10679630 DOI: 10.4103/bc.bc_3_23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2023] [Revised: 04/19/2023] [Accepted: 04/24/2023] [Indexed: 12/01/2023] Open
Abstract
BACKGROUND Glycogen synthase kinase-3β (GSK3β), fat mass and obesity-associated protein (FTO), and toll-like receptors 4 (TLR4) take on critical significance in different biological processes, whereas their interactions remain unclear. The objective was the investigation of the interaction effect in cerebral ischemia-reperfusion (I/R) injury. METHODS The function of the cerebral cortex in the mouse middle cerebral artery occlusion (MCAO) model (each group n = 6) and P12 cells oxygen-glucose deprivation/reoxygenation (OGD/R) model was analyzed using short hairpin GSK3β lentivirus and overexpression of FTO lentivirus (in vitro), TLR4 inhibitor (TAK242), and LiCl to regulate GSK3β, FTO, TLR4 expression, and GSK3β activity, respectively. RESULTS After GSK3β knockdown in the OGD/R model of PC12 cells, the levels of TLR4 and p-p65 were lower than in the control, and the level of FTO was higher than in the control. Knockdown GSK3β reversed the OGD/R-induced nuclear factor kappa-B transfer to the intranuclear nuclei. As indicated by the result, TLR4 expression was down-regulated by overexpressed FTO, and TLR4 expression was up-regulated notably after inhibition of FTO with the use of R-2HG. After the inhibition of the activity of GSK3β in vivo, the reduction of FTO in mice suffering from MCAO was reversed. CONCLUSIONS Our research shows that GSK3β/FTO/TLR4 pathway contributes to cerebral I/R injury.
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Affiliation(s)
- Kaiwei Xu
- Department of Anesthesiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Wenwen Du
- Department of Anesthesiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Xiuxiu Zhuang
- Department of Anesthesiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Dongdong Liang
- Department of Anesthesiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Yunchang Mo
- Department of Anesthesiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
| | - Junlu Wang
- Department of Anesthesiology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, Zhejiang, China
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Jin Z, Gao W, Guo F, Liao S, Hu M, Yu T, Yu S, Shi Q. Astragaloside IV alleviates neuronal ferroptosis in ischemic stroke by regulating fat mass and obesity-associated-N6-methyladenosine-acyl-CoA synthetase long-chain family member 4 axis. J Neurochem 2023. [PMID: 37300304 DOI: 10.1111/jnc.15871] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2022] [Revised: 05/06/2023] [Accepted: 05/16/2023] [Indexed: 06/12/2023]
Abstract
Ischemic stroke (IS) is a detrimental neurological disease with limited treatment options. Astragaloside IV (As-IV) was a promising bioactive constituent in the treatment of IS. However, the functional mechanism remains unclear. Here, IS cell and mouse models were established by oxygen glucose deprivation/re-oxygenation (OGD/R) and middle cerebral artery occlusion (MCAO). Quantitative reverse transcription PCR (RT-qPCR), Western blotting, or Immunofluorescence staining measured related gene and protein expression of cells or mice brain tissues, and the results revealed altered expression of acyl-CoA synthetase long-chain family member 4 (Acsl4), fat mass and obesity-associated (Fto), and activation transcription factor 3 (Atf3) after treatment with As-IV. Then, increased N6 -methyladenosine (m6 A) levels caused OGD/R or MCAO were reduced by As-IV according to the data from methylated RNA immunoprecipitation (MeRIP)-qPCR and dot blot assays. Moreover, through a series of functional experiments such as observing mitochondrial changes under transmission electron microscopy (TEM), evaluating cell viability by cell counting kit-8 (CCK-8), analyzing infract area of brain tissues by 2,3,5-triphenyltetrazolium chloride (TTC) staining, measuring levels of malondialdehyde (MDA), lactate dehydrogenase (LDH), Fe2+ , solute carrier family 7 member 11 (Slc7a11) and glutathione peroxidase 4 (Gpx4) and concentration of glutathione (GSH), we found that Fto knockdown, Acsl4 overexpression or Atf3 knockdown promoted the viability of OGD/R cells, inhibited cell ferroptosis, reduced infract size, while As-IV treatment or Fto overexpression reversed these changes. In mechanism, the interplays of YTH N6 -methyladenosine RNA-binding protein 3 (Ythdf3)/Acsl4 and Atf3/Fto were analyzed by RNA-pull down, RNA immunoprecipitation (RIP), chromatin immunoprecipitation (ChIP) and dual-luciferase reporter assay. Fto regulated the m6 A levels of Acsl4. Ythdf3 bound to Acsl4, and modulated its levels through m6 A modification. Atf3 bound to Fto and positively regulated its levels. Overall, As-IV promoted the transcription of Fto by upregulating Atf3, resulting in decreased m6 A levels of Acsl4, thus, improving neuronal injury in IS by inhibiting ferroptosis.
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Affiliation(s)
- Zhenglong Jin
- Department of Neurology, Affiliated Jiangmen Traditional Chinese Medicine Hospital of Ji'nan University, Jiangmen, China
| | - Wenying Gao
- Department of TCM Pediatrics, Jiangmen Maternal and Child Health Hospital, Jiangmen, China
| | - Fu Guo
- Department of Neurology, Affiliated Jiangmen Traditional Chinese Medicine Hospital of Ji'nan University, Jiangmen, China
| | - Shaojun Liao
- Department of Spine, Guangdong Provincial Hospital of Chinese Medicine, Guangzhou, China
| | - Mingzhe Hu
- Department of Neurology, The Affiliated Hospital of Shandong University of TCM, Jinan, China
| | - Tao Yu
- Department of Neurology, Affiliated Jiangmen Traditional Chinese Medicine Hospital of Ji'nan University, Jiangmen, China
| | - Shangzhen Yu
- Department of Neurology, Affiliated Jiangmen Traditional Chinese Medicine Hospital of Ji'nan University, Jiangmen, China
| | - Qing Shi
- Department of Neurology, Affiliated Jiangmen Traditional Chinese Medicine Hospital of Ji'nan University, Jiangmen, China
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Yang F, Jing JJ, Fu SY, Su XZ, Zhong YL, Chen DS, Wu XZ, Zou YQ. Spinal MCP-1 Contributes to Central Post-stroke Pain by Inducing Central Sensitization in Rats. Mol Neurobiol 2023; 60:2086-2098. [PMID: 36602702 DOI: 10.1007/s12035-022-03184-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Accepted: 12/18/2022] [Indexed: 01/06/2023]
Abstract
Central post-stroke pain (CPSP) is a highly refractory form of central neuropathic pain that has been poorly studied mechanistically. Recent observations have emphasized the critical role of the spinal dorsal horn in CPSP. However, the underlying mechanisms remain unclear. In this study, rats were subjected to thalamic hemorrhage to investigate the role of spinal monocyte chemoattractant protein-1 (MCP-1) and C-C motif chemokine receptor 2 (CCR2) in the development of CPSP. Immunohistochemical staining and ELISA were used to assess the expression changes of c-Fos, Iba-1, GFAP, MCP-1, and CCR2 in the dorsal horn of the lumbar spinal cord following thalamic hemorrhage, and the involvement of spinal MCP-1 in CPSP was examined by performing intrathecal anti-MCP-1 mAb injection to neutralize the spinal extracellular MCP-1. We demonstrated that intra-thalamic collagenase microinjection induced persistent bilateral mechanical pain hypersensitivity and facilitated the spontaneous pain behaviors evoked by intraplantar bee venom injection. Accompanying CPSP, the expression of c-Fos, Iba-1, and GFAP in the lumbar spinal dorsal horn was significantly increased up to 28 days post-intra-thalamic collagenase microinjection. Intrathecal injection of minocycline and fluorocitrate dramatically reverses the bilateral mechanical pain hypersensitivity. Moreover, intra-thalamic collagenase microinjection dramatically induced the up-regulation of MCP-1 but had no effect on the expression of CCR2 in the bilateral lumbar spinal dorsal horn, and MCP-1 was primarily localized in the neuron. Intrathecal injection of anti-MCP-1 mAb was also able to reverse CPSP and reduce the expression of c-Fos, Iba-1, and GFAP in the lumbar spinal dorsal horn. These findings indicated that spinal MCP-1 contributes to CPSP by mediating the activation of spinal neurons and glial cells following thalamic hemorrhage stroke, which may provide insights into pharmacologic treatment for CPSP.
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Affiliation(s)
- Fei Yang
- Department of Anesthesiology and Perioperative Medicine, Fuzong Clinical College/900th Hospital of the Joint Logistic Support Force, Fujian Medical University, Fuzhou, 350025, China.,Department of Anesthesiology and Perioperative Medicine, Dongfang Hospital, Xiamen University, Fuzhou, 350025, China.,Pain Research Institute, Fujian Medical University, Fuzhou, 350025, China
| | - Jun-Jie Jing
- Department of Neurosurgery, Fujian Children's Hospital, College of Clinical Medicine for Obstetrics & Gynecology and Pediatrics, Fujian Medical University, Fuzhou, 350025, China
| | - Si-Yin Fu
- Department of Anesthesiology and Perioperative Medicine, Fuzong Clinical College/900th Hospital of the Joint Logistic Support Force, Fujian Medical University, Fuzhou, 350025, China.,Department of Anesthesiology and Perioperative Medicine, Dongfang Hospital, Xiamen University, Fuzhou, 350025, China
| | - Xiu-Zhu Su
- Department of Anesthesiology and Perioperative Medicine, Fuzong Clinical College/900th Hospital of the Joint Logistic Support Force, Fujian Medical University, Fuzhou, 350025, China.,Department of Anesthesiology and Perioperative Medicine, Dongfang Hospital, Xiamen University, Fuzhou, 350025, China
| | - Yu-Ling Zhong
- Department of Anesthesiology and Perioperative Medicine, Fuzong Clinical College/900th Hospital of the Joint Logistic Support Force, Fujian Medical University, Fuzhou, 350025, China.,Department of Anesthesiology and Perioperative Medicine, Dongfang Hospital, Xiamen University, Fuzhou, 350025, China
| | - Dong-Sheng Chen
- Department of Anesthesiology and Perioperative Medicine, Fuzong Clinical College/900th Hospital of the Joint Logistic Support Force, Fujian Medical University, Fuzhou, 350025, China. .,Department of Anesthesiology and Perioperative Medicine, Dongfang Hospital, Xiamen University, Fuzhou, 350025, China.
| | - Xiao-Zhi Wu
- Department of Anesthesiology and Perioperative Medicine, Fuzong Clinical College/900th Hospital of the Joint Logistic Support Force, Fujian Medical University, Fuzhou, 350025, China. .,Department of Anesthesiology and Perioperative Medicine, Dongfang Hospital, Xiamen University, Fuzhou, 350025, China.
| | - Yi-Qing Zou
- Department of Anesthesiology and Perioperative Medicine, Fuzong Clinical College/900th Hospital of the Joint Logistic Support Force, Fujian Medical University, Fuzhou, 350025, China. .,Department of Anesthesiology and Perioperative Medicine, Dongfang Hospital, Xiamen University, Fuzhou, 350025, China.
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Wen CH, Berkman T, Li X, Du S, Govindarajalu G, Zhang H, Bekker A, Davidson S, Tao YX. Effect of intrathecal NIS-lncRNA antisense oligonucleotides on neuropathic pain caused by nerve trauma, chemotherapy, or diabetes mellitus. Br J Anaesth 2023; 130:202-216. [PMID: 36460518 PMCID: PMC9997083 DOI: 10.1016/j.bja.2022.09.027] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Revised: 09/01/2022] [Accepted: 09/21/2022] [Indexed: 11/26/2022] Open
Abstract
BACKGROUND Blocking increased expression of nerve injury-specific long non-coding RNA (NIS-lncRNA) in injured dorsal root ganglia (DRG) through DRG microinjection of NIS-lncRNA small hairpin interfering RNA or generation of NIS-lncRNA knockdown mice mitigates neuropathic pain. However, these strategies are impractical in the clinic. This study employed a Food and Drug Administration (FDA)-approved antisense oligonucleotides strategy to examine the effect of NIS-lncRNA ASOs on neuropathic pain. METHODS Effects of intrathecal injection of NIS-lncRNA antisense oligonucleotides on day 7 or 14 after chronic constriction injury (CCI) of the sciatic nerve, fourth lumbar (L4) spinal nerve ligation, or intraperitoneal injection of paclitaxel or streptozotocin on the expression of DRG NIS-lncRNA and C-C chemokine ligand 2 (CCL2, an NIS-lncRNA downstream target) and nociceptive hypersensitivity were examined. We also assessed whether NIS-lncRNA antisense oligonucleotides produced cellular toxicity. RESULTS Intrathecal NIS-lncRNA antisense oligonucleotides attenuated CCI-induced mechanical allodynia, heat hyperalgesia, cold hyperalgesia, and ongoing nociceptive responses, without changing basal or acute nociceptive responses and locomotor function. Intrathecal NIS-lncRNA antisense oligonucleotides also blocked CCI-induced increases in NIS-lncRNA and CCL2 in the ipsilateral L3 and L4 DRG and hyperactivities of neurones and astrocytes in the ipsilateral L3 and L4 spinal cord dorsal horn. Similar results were found in antisense oligonucleotides-treated mice after spinal nerve ligation or intraperitoneal injection of paclitaxel or streptozotocin. Normal morphologic structure and no cell loss were observed in the DRG and spinal cord of antisense oligonucleotides-treated mice. CONCLUSION These findings further validate the role of NIS-lncRNA in trauma-, chemotherapy-, or diabetes-induced neuropathic pain and demonstrate potential clinical application of NIS-lncRNA antisense oligonucleotides for neuropathic pain management.
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Affiliation(s)
- Chun-Hsien Wen
- Department of Anaesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ, USA
| | - Tolga Berkman
- Department of Anaesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ, USA
| | - Xiang Li
- Department of Anaesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ, USA
| | - Shibin Du
- Department of Anaesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ, USA
| | - Gokulapriya Govindarajalu
- Department of Anaesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ, USA
| | - Haijun Zhang
- Department of Anaesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ, USA
| | - Alex Bekker
- Department of Anaesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ, USA
| | - Steve Davidson
- Department of Anaesthesiology, Pain Research Centre, and Neuroscience Graduate Program, University of Cincinnati College of Medicine, Cincinnati, OH, USA
| | - Yuan-Xiang Tao
- Department of Anaesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ, USA; Department of Physiology, Pharmacology & Neuroscience, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ, USA; Department of Cell Biology & Molecular Medicine, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ, USA.
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Huang T, Xiao Y, Zhang Y, Ge Y, Gao J. Combination of single-nucleus and bulk RNA-seq reveals the molecular mechanism of thalamus haemorrhage-induced central poststroke pain. Front Immunol 2023; 14:1174008. [PMID: 37153564 PMCID: PMC10157064 DOI: 10.3389/fimmu.2023.1174008] [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: 02/25/2023] [Accepted: 04/10/2023] [Indexed: 05/09/2023] Open
Abstract
Central poststroke pain (CPSP) induced by thalamic haemorrhage (TH) can be continuous or intermittent and is accompanied by paresthesia, which seriously affects patient quality of life. Advanced insights into CPSP mechanisms and therapeutic strategies require a deeper understanding of the molecular processes of the thalamus. Here, using single-nucleus RNA sequencing (snRNA-seq), we sequenced the transcriptomes of 32332 brain cells, which revealed a total of four major cell types within the four thalamic samples from mice. Compared with the control group, the experimental group possessed the higher sensitivity to mechanical, thermal, and cold stimuli, and increased microglia numbers and decreased neuron numbers. We analysed a collection of differentially expressed genes and neuronal marker genes obtained from bulk RNA sequencing (bulk RNA-seq) data and found that Apoe, Abca1, and Hexb were key genes verified by immunofluorescence (IF). Immune infiltration analysis found that these key genes were closely related to macrophages, T cells, related chemokines, immune stimulators and receptors. Gene Ontology (GO) enrichment analysis also showed that the key genes were enriched in biological processes such as protein export from nucleus and protein sumoylation. In summary, using large-scale snRNA-seq, we have defined the transcriptional and cellular diversity in the brain after TH. Our identification of discrete cell types and differentially expressed genes within the thalamus can facilitate the development of new CPSP therapeutics.
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Affiliation(s)
- Tianfeng Huang
- Northern Jiangsu People's Hospital Affiliated to Yangzhou University/Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu, China
- Yangzhou Key Laboratory of Anesthesiology, Northern Jiangsu People's Hospital, Yangzhou, Jiangsu, China
| | - Yinggang Xiao
- Northern Jiangsu People's Hospital Affiliated to Yangzhou University/Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu, China
- Yangzhou Key Laboratory of Anesthesiology, Northern Jiangsu People's Hospital, Yangzhou, Jiangsu, China
| | - Yang Zhang
- Northern Jiangsu People's Hospital Affiliated to Yangzhou University/Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu, China
- Yangzhou Key Laboratory of Anesthesiology, Northern Jiangsu People's Hospital, Yangzhou, Jiangsu, China
| | - Yali Ge
- Northern Jiangsu People's Hospital Affiliated to Yangzhou University/Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu, China
- Yangzhou Key Laboratory of Anesthesiology, Northern Jiangsu People's Hospital, Yangzhou, Jiangsu, China
| | - Ju Gao
- Northern Jiangsu People's Hospital Affiliated to Yangzhou University/Clinical Medical College, Yangzhou University, Yangzhou, Jiangsu, China
- Yangzhou Key Laboratory of Anesthesiology, Northern Jiangsu People's Hospital, Yangzhou, Jiangsu, China
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10
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Zhang L, Li X, Feng X, Berkman T, Ma R, Du S, Wu S, Huang C, Amponsah A, Bekker A, Tao YX. E74-like factor 1 contributes to nerve trauma-induced nociceptive hypersensitivity through transcriptionally activating matrix metalloprotein-9 in dorsal root ganglion neurons. Pain 2023; 164:119-131. [PMID: 35507368 PMCID: PMC9633582 DOI: 10.1097/j.pain.0000000000002673] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Accepted: 04/20/2022] [Indexed: 01/09/2023]
Abstract
ABSTRACT Nerve trauma-induced alternations of gene expression in the neurons of dorsal root ganglion (DRG) participate in nerve trauma-caused nociceptive hypersensitivity. Transcription factors regulate gene expression. Whether the transcription factor E74-like factor 1 (ELF1) in the DRG contributes to neuropathic pain is unknown. We report here that peripheral nerve trauma caused by chronic constriction injury (CCI) of unilateral sciatic nerve or unilateral fourth lumbar spinal nerve ligation led to the time-dependent increases in the levels of Elf1 mRNA and ELF1 protein in injured DRG, but not in the spinal cord. Preventing this increase through DRG microinjection of adeno-associated virus 5 expressing Elf1 shRNA attenuated the CCI-induced upregulation of matrix metallopeptidase 9 (MMP9) in injured DRG and induction and maintenance of nociceptive hypersensitivities, without changing locomotor functions and basal responses to acute mechanical, heat, and cold stimuli. Mimicking this increase through DRG microinjection of AAV5 expressing full-length Elf1 upregulated DRG MMP9 and produced enhanced responses to mechanical, heat, and cold stimuli in naive mice. Mechanistically, more ELF1 directly bond to and activated Mmp9 promoter in injured DRG neurons after CCI. Our data indicate that ELF1 participates in nerve trauma-caused nociceptive hypersensitivity likely through upregulating MMP9 in injured DRG. E74-like factor 1 may be a new target for management of neuropathic pain.
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Affiliation(s)
- Luyao Zhang
- Department of Anesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ 07103, USA
| | - Xiang Li
- Department of Anesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ 07103, USA
| | - Xiaozhou Feng
- Department of Anesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ 07103, USA
| | - Tolga Berkman
- Department of Anesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ 07103, USA
| | - Ruining Ma
- Department of Anesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ 07103, USA
| | - Shibin Du
- Department of Anesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ 07103, USA
| | - Shaogen Wu
- Department of Anesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ 07103, USA
| | - Congcong Huang
- Department of Anesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ 07103, USA
| | - Akwasi Amponsah
- Department of Anesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ 07103, USA
| | - Alex Bekker
- Department of Anesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ 07103, USA
| | - Yuan-Xiang Tao
- Department of Anesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ 07103, USA
- Departments of Cell Biology & Molecular Medicine and Physiology, Pharmacology & Neuroscience, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ 07103, USA
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11
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Li HL, Lin M, Tan XP, Wang JL. Role of Sensory Pathway Injury in Central Post-Stroke Pain: A Narrative Review of Its Pathogenetic Mechanism. J Pain Res 2023; 16:1333-1343. [PMID: 37101520 PMCID: PMC10124563 DOI: 10.2147/jpr.s399258] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2022] [Accepted: 04/07/2023] [Indexed: 04/28/2023] Open
Abstract
Central post-stroke pain (CPSP) is a severe chronic neuropathic pain syndrome that is a direct result of cerebrovascular lesions affecting the central somatosensory system. The pathogenesis of this condition remains unclear owing to its extensive clinical manifestations. Nevertheless, clinical and animal experiments have allowed a comprehensive understanding of the mechanisms underlying CPSP occurrence, based on which different theoretical hypotheses have been proposed. We reviewed and collected the literature and on the mechanisms of CPSP by searching the English literature in PubMed and EMBASE databases for the period 2002-2022. Recent studies have reported that CPSP occurrence is mainly due to post-stroke nerve injury and microglial activation, with an inflammatory response leading to central sensitization and de-inhibition. In addition to the primary injury at the stroke site, peripheral nerves, spinal cord, and brain regions outside the stroke site are involved in the occurrence and development of CPSP. In the present study, we reviewed the mechanism of action of CPSP from both clinical studies and basic research based on its sensory pathway. Through this review, we hope to increase the understanding of the mechanism of CPSP.
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Affiliation(s)
- Hai-Li Li
- Department of Pain Management, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province, 646000, People’s Republic of China
- Anesthesiology and Critical Care Medicine Key Laboratory of Luzhou, Southwest Medical University, Luzhou, Sichuan Province, 646000, People’s Republic of China
| | - Min Lin
- Department of Pain Management, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province, 646000, People’s Republic of China
- Anesthesiology and Critical Care Medicine Key Laboratory of Luzhou, Southwest Medical University, Luzhou, Sichuan Province, 646000, People’s Republic of China
| | - Xing-Ping Tan
- Department of Pain Management, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province, 646000, People’s Republic of China
- Anesthesiology and Critical Care Medicine Key Laboratory of Luzhou, Southwest Medical University, Luzhou, Sichuan Province, 646000, People’s Republic of China
| | - Jiang-Lin Wang
- Department of Pain Management, The Affiliated Hospital of Southwest Medical University, Luzhou, Sichuan Province, 646000, People’s Republic of China
- Anesthesiology and Critical Care Medicine Key Laboratory of Luzhou, Southwest Medical University, Luzhou, Sichuan Province, 646000, People’s Republic of China
- Correspondence: Jiang-Lin Wang, Pain Department, The Affiliated Hospital of Southwest Medical University, No. 25 Pacific Street, Luzhou, Sichuan Province, 646000, People’s Republic of China, Tel +8618090880626, Fax +86830-3165469, Email
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12
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Liang T, Chen XF, Yang Y, Yang F, Yu Y, Yang F, Wang XL, Wang JL, Sun W, Chen J. Secondary damage and neuroinflammation in the spinal dorsal horn mediate post-thalamic hemorrhagic stroke pain hypersensitivity: SDF1-CXCR4 signaling mediation. Front Mol Neurosci 2022; 15:911476. [PMID: 36034499 PMCID: PMC9416701 DOI: 10.3389/fnmol.2022.911476] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2022] [Accepted: 07/22/2022] [Indexed: 11/13/2022] Open
Abstract
Central post-stroke pain (CPSP) is an intractable neuropathic pain, which can be caused by primary lesion of central somatosensory system. It is also a common sequelae of the thalamic hemorrhagic stroke (THS). So far, the underlying mechanisms of CPSP remain largely unknown. Our previous studies have demonstrated that SDF1-CXCR4 signaling in the hemorrhagic region contributes to the maintenance of the THS pain hypersensitivity via mediation of the thalamic neuroinflammation. But whether the spinal dorsal horn, an initial point of spinothalamic tract (STT), suffers from retrograde axonal degeneration from the THS region is still unknown. In this study, neuronal degeneration and loss in the spinal dorsal horn were detected 7 days after the THS caused by intra-thalamic collagenase (ITC) injection by immunohistochemistry, TUNEL staining, electron microscopy, and extracellular multi-electrode array (MEA) recordings, suggesting the occurrence of secondary apoptosis and death of the STT projecting neuronal cell bodies following primary THS via retrograde axonal degeneration. This retrograde degeneration was accompanied by secondary neuroinflammation characterized by an activation of microglial and astrocytic cells and upregulation of SDF1-CXCR4 signaling in the spinal dorsal horn. As a consequence, central sensitization was detected by extracellular MEA recordings of the spinal dorsal horn neurons, characterized by hyperexcitability of both wide dynamic range and nociceptive specific neurons to suprathreshold mechanical stimuli. Finally, it was shown that suppression of spinal neuroinflammation by intrathecal administration of inhibitors of microglia (minocycline) and astrocytes (fluorocitrate) and antagonist of CXCR4 (AMD3100) could block the increase in expression levels of Iba-1, GFAP, SDF1, and CXCR4 proteins in the dorsal spinal cord and ameliorate the THS-induced bilateral mechanical pain hypersensitivity, implicating that, besides the primary damage at the thalamus, spinal secondary damage and neuroinflammation also play the important roles in maintaining the central post-THS pain hypersensitivity. In conclusion, secondary neuronal death and neuroinflammation in the spinal dorsal horn can be induced by primary thalamic neural damage via retrograde axonal degeneration process. SDF1-CXCR4 signaling is involved in the mediation of secondary spinal neuroinflammation and THS pain hypersensitivity. This finding would provide a new therapeutic target for treatment of CPSP at the spinal level.
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Affiliation(s)
- Ting Liang
- Institute for Biomedical Sciences of Pain, Tangdu Hospital, The Fourth Military Medical University, Xi’an, China
| | - Xue-Feng Chen
- Institute for Biomedical Sciences of Pain, Tangdu Hospital, The Fourth Military Medical University, Xi’an, China
- Key Laboratory of Brain Stress and Behavior, People’s Liberation Army, Xi’an, China
| | - Yan Yang
- Institute for Biomedical Sciences of Pain, Tangdu Hospital, The Fourth Military Medical University, Xi’an, China
- Key Laboratory of Brain Stress and Behavior, People’s Liberation Army, Xi’an, China
| | - Fei Yang
- Department of Anesthesiology and Perioperative Medicine, Clinical Medical College (900 Hospital of the Joint Logistic Support Force), Fujian Medical University, Fuzhou, China
| | - Yang Yu
- Institute for Biomedical Sciences of Pain, Tangdu Hospital, The Fourth Military Medical University, Xi’an, China
- Key Laboratory of Brain Stress and Behavior, People’s Liberation Army, Xi’an, China
| | - Fan Yang
- Institute for Biomedical Sciences of Pain, Tangdu Hospital, The Fourth Military Medical University, Xi’an, China
- Key Laboratory of Brain Stress and Behavior, People’s Liberation Army, Xi’an, China
| | - Xiao-Liang Wang
- Institute for Biomedical Sciences of Pain, Tangdu Hospital, The Fourth Military Medical University, Xi’an, China
- Key Laboratory of Brain Stress and Behavior, People’s Liberation Army, Xi’an, China
| | - Jiang-Lin Wang
- Institute for Biomedical Sciences of Pain, Tangdu Hospital, The Fourth Military Medical University, Xi’an, China
- Department of Pain Medicine, The Affiliated Hospital, Southwest Medical University, Luzhou, China
| | - Wei Sun
- Institute for Biomedical Sciences of Pain, Tangdu Hospital, The Fourth Military Medical University, Xi’an, China
- Key Laboratory of Brain Stress and Behavior, People’s Liberation Army, Xi’an, China
- Wei Sun,
| | - Jun Chen
- Institute for Biomedical Sciences of Pain, Tangdu Hospital, The Fourth Military Medical University, Xi’an, China
- Key Laboratory of Brain Stress and Behavior, People’s Liberation Army, Xi’an, China
- *Correspondence: Jun Chen, ,
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13
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Wang XL, Wei X, Yuan JJ, Mao YY, Wang ZY, Xing N, Gu HW, Lin CH, Wang WT, Zhang W, Xing F. Downregulation of Fat Mass and Obesity-Related Protein in the Anterior Cingulate Cortex Participates in Anxiety- and Depression-Like Behaviors Induced by Neuropathic Pain. Front Cell Neurosci 2022; 16:884296. [PMID: 35634463 PMCID: PMC9133794 DOI: 10.3389/fncel.2022.884296] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2022] [Accepted: 04/25/2022] [Indexed: 12/25/2022] Open
Abstract
N6-methyladenosine (m6A) is the most abundant methylation modification on mRNA in mammals. Fat mass and obesity-related protein (FTO) is the main RNA m6A demethylase. FTO is involved in the occurrence and maintenance of neuropathic pain (NP). NP often induces mental disorders. We found that NP downregulated the expression of FTO in the anterior cingulate cortex (ACC), inhibited the expression of matrix metalloproteinase-9 (MMP-9) in the ACC, maladjusted the brain-derived neurotrophic factor precursor (proBDNF) and mature brain-derived neurotrophic factor (mBDNF) levels in the ACC, and induced anxiety- and depression-like behaviors in mice. Blocking the downregulation of FTO in the ACC induced by peripheral nerve injury could reverse the anxiety- and depression-like behaviors of mice. Contrarily, downregulation of simulated FTO induced anxiety- and depression-like behaviors in mice. After peripheral nerve injury, the binding of FTO to MMP-9 mRNA decreased and the enrichment of m6A on MMP-9 mRNA increased. In conclusion, downregulation of FTO in ACC by regulating MMP-9 mRNA methylation level contributes to the occurrence of anxiety- and depression-like behaviors in NP mice.
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Affiliation(s)
- Xiao-Ling Wang
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Province International Joint Laboratory of Pain, Cognition and Emotion, Zhengzhou, China
| | - Xin Wei
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Province International Joint Laboratory of Pain, Cognition and Emotion, Zhengzhou, China
| | - Jing-Jing Yuan
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Province International Joint Laboratory of Pain, Cognition and Emotion, Zhengzhou, China
| | - Yuan-Yuan Mao
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Province International Joint Laboratory of Pain, Cognition and Emotion, Zhengzhou, China
| | - Zhong-Yu Wang
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Province International Joint Laboratory of Pain, Cognition and Emotion, Zhengzhou, China
| | - Na Xing
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Province International Joint Laboratory of Pain, Cognition and Emotion, Zhengzhou, China
| | - Han-Wen Gu
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Province International Joint Laboratory of Pain, Cognition and Emotion, Zhengzhou, China
| | - Cai-Hong Lin
- Department of Human Anatomy, School of Medical Sciences, Zhengzhou University, Zhengzhou, China
| | - Wen-Ting Wang
- Department of Anesthesiology and Perioperative Medicine, The Second Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Wei Zhang
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Province International Joint Laboratory of Pain, Cognition and Emotion, Zhengzhou, China
- Wei Zhang,
| | - Fei Xing
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
- Henan Province International Joint Laboratory of Pain, Cognition and Emotion, Zhengzhou, China
- *Correspondence: Fei Xing,
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14
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He L, Cao J, Jiang BC, Yang JJ, Tao YX, Ai Y. C/EBPβ Participates in Nerve Trauma-Induced TLR7 Upregulation in Primary Sensory Neurons. Mol Neurobiol 2022; 59:2629-2641. [PMID: 35141864 PMCID: PMC9016012 DOI: 10.1007/s12035-022-02763-0] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/04/2021] [Accepted: 01/28/2022] [Indexed: 10/26/2022]
Abstract
Nerve trauma-induced toll-like receptor 7 (TLR7) expression level increases in primary sensory neurons in injured dorsal root ganglion (DRG) avails to neuropathic pain, but the reason is still unknown. In the current study, we showed that unilateral lumbar 4 (L4) spinal nerve ligation (SNL) upregulated CCAAT/enhancer-binding protein-β (C/EBPβ) expression in ipsilateral L4 DRG. Preventing this elevation attenuated the SNL-induced upregulation of TLR7 in the ipsilateral L4 DRG and inhibited cold/thermal hyperalgesia and mechanical allodynia. In injected DRG, mimicking nerve trauma-induced C/EBPβ upregulation increased TLR7 levels, augmented responses to cold/thermal/mechanical stimuli, and caused ipsilateral spontaneous pain with no SNL. Mechanistically, SNL upregulated binding of increased C/EBPβ to Tlr7 promoter in ipsilateral L4 DRG. Accorded that C/EBPβ could trigger the activation of Tlr7 promoter and co-expressed with Tlr7 mRNA in individual DRG neurons, our findings strongly suggest the role of C/EBPβ in nerve trauma-mediated TLR7 upregulation in injured primary sensory neurons.
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Affiliation(s)
- Long He
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Jing Cao
- Department of Anatomy, College of Basic Medicine, Zhengzhou University, Zhengzhou, 450001, Henan, China
| | - Bao-Chun Jiang
- Institute of Pain Medicine and Special Environmental Medicine, Nantong University, Nantong, 226019, Jiangsu, China
| | - Jian-Jun Yang
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China
| | - Yuan-Xiang Tao
- Department of Anesthesiology, New Jersey Medical School, Rutgers, The State University of New Jersey, Newark, NJ, 07103, USA
| | - Yanqiu Ai
- Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052, Henan, China.
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15
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Abstract
Neuropathic pain (NP) is a common symptom in many diseases of the somatosensory
nervous system, which severely affects the patient’s quality of life.
Epigenetics are heritable alterations in gene expression that do not cause
permanent changes in the DNA sequence. Epigenetic modifications can affect gene
expression and function and can also mediate crosstalk between genes and the
environment. Increasing evidence shows that epigenetic modifications, including
DNA methylation, histone modification, non-coding RNA, and RNA modification, are
involved in the development and maintenance of NP. In this review, we focus on
the current knowledge of epigenetic modifications in the development and
maintenance of NP. Then, we illustrate different facets of epigenetic
modifications that regulate gene expression and their crosstalk. Finally, we
discuss the burgeoning evidence supporting the potential of emerging epigenetic
therapies, which has been valuable in understanding mechanisms and offers novel
and potent targets for NP therapy.
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Affiliation(s)
- Danzhi Luo
- Department of Anesthesiology, The First People’s Hospital of
Foshan, Foshan, China
- Sun Yet-Sen Memorial Hospital of Sun
Yet-Sen University, Guangzhou, China
| | - Xiaohong Li
- Department of Anesthesiology, The First People’s Hospital of
Foshan, Foshan, China
| | - Simin Tang
- Department of Anesthesiology, The Third Affiliated Hospital of
Southern Medical University, Guangzhou, China
| | - Fuhu Song
- Department of Anesthesiology, The Third Affiliated Hospital of
Southern Medical University, Guangzhou, China
| | - Wenjun Li
- Department of Anesthesiology, The Third Affiliated Hospital of
Southern Medical University, Guangzhou, China
| | - Guiling Xie
- Department of Anesthesiology, The Third Affiliated Hospital of
Southern Medical University, Guangzhou, China
| | - Jinshu Liang
- Department of Anesthesiology, The Third Affiliated Hospital of
Southern Medical University, Guangzhou, China
| | - Jun Zhou
- Department of Anesthesiology, The Third Affiliated Hospital of
Southern Medical University, Guangzhou, China
- Jun Zhou, Department of Anesthesiology, The
Third Affiliated Hospital of Southern Medical University, Guangzhou 510630,
China.
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16
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Wei W, Liu W, Du S, Govindarajalu G, Irungu A, Bekker A, Tao YX. A Compound Mitigates Cancer Pain and Chemotherapy-Induced Neuropathic Pain by Dually Targeting nNOS-PSD-95 Interaction and GABA A Receptor. Neurotherapeutics 2021; 18:2436-2448. [PMID: 34796458 PMCID: PMC8804143 DOI: 10.1007/s13311-021-01158-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/04/2021] [Indexed: 10/19/2022] Open
Abstract
Metastatic bone pain and chemotherapy-induced peripheral neuropathic pain are the most common clinical symptoms in cancer patients. The current clinical management of these two disorders is ineffective and/or produces severe side effects. The present study employed a dual-target compound named as ZL006-05 and examined the effect of systemic administration of ZL006-05 on RM-1-induced bone cancer pain and paclitaxel-induced neuropathic pain. Intravenous injection of ZL006-05 dose-dependently alleviated RM-1-induced mechanical allodynia, heat hyperalgesia, cold hyperalgesia, and spontaneously ongoing nociceptive responses during both induction and maintenance periods, without analgesic tolerance, affecting basal/acute pain and locomotor function. Similar behavioral results were observed in paclitaxel-induced neuropathic pain. This injection also decreased neuronal and astrocyte hyperactivities in the lumbar dorsal horn after RM-1 tibial inoculation or paclitaxel intraperitoneal injection. Mechanistically, intravenous injection of ZL006-05 potentiated the GABAA receptor agonist-evoked currents in the neurons of the dorsal horn and anterior cingulate cortex and also blocked the paclitaxel-induced increase in postsynaptic density-95-neuronal nitric oxide synthase interaction in dorsal horn. Our findings strongly suggest that ZL006-05 may be a new candidate for the management of cancer pain and chemotherapy-induced peripheral neuropathic pain.
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Affiliation(s)
- Wei Wei
- Department of Anesthesiology, Rutgers New Jersey Medical School, The State University of New Jersey, 185 S. Orange Ave., MSB, F-661, Newark, NJ, 07103, USA
| | - Weili Liu
- Department of Anesthesiology, Rutgers New Jersey Medical School, The State University of New Jersey, 185 S. Orange Ave., MSB, F-661, Newark, NJ, 07103, USA
| | - Shibin Du
- Department of Anesthesiology, Rutgers New Jersey Medical School, The State University of New Jersey, 185 S. Orange Ave., MSB, F-661, Newark, NJ, 07103, USA
| | - Gokulapriya Govindarajalu
- Department of Anesthesiology, Rutgers New Jersey Medical School, The State University of New Jersey, 185 S. Orange Ave., MSB, F-661, Newark, NJ, 07103, USA
| | - Antony Irungu
- Department of Anesthesiology, Rutgers New Jersey Medical School, The State University of New Jersey, 185 S. Orange Ave., MSB, F-661, Newark, NJ, 07103, USA
| | - Alex Bekker
- Department of Anesthesiology, Rutgers New Jersey Medical School, The State University of New Jersey, 185 S. Orange Ave., MSB, F-661, Newark, NJ, 07103, USA
| | - Yuan-Xiang Tao
- Department of Anesthesiology, Rutgers New Jersey Medical School, The State University of New Jersey, 185 S. Orange Ave., MSB, F-661, Newark, NJ, 07103, USA.
- Department of Physiology, Rutgers New Jersey Medical School, The State University of New Jersey, Pharmacology & Neuroscience, Newark, NJ, 07103, USA.
- Department of Cell Biology & Molecular Medicine, Rutgers New Jersey Medical School, The State University of New Jersey, Newark, NJ, 07103, USA.
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