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Sun PP, Liao SX, Sang P, Liu MM, Yang JB. Lysosomal transmembrane protein 5: Impact on immune cell function and implications for immune-related deficiencies. Heliyon 2024; 10:e36705. [PMID: 39281638 PMCID: PMC11401081 DOI: 10.1016/j.heliyon.2024.e36705] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Revised: 08/20/2024] [Accepted: 08/21/2024] [Indexed: 09/18/2024] Open
Abstract
Lysosomal transmembrane protein 5 (LAPTM5) is a lysosomal-associated protein that interacts with surface receptors on various immune cells, including B cells, T cells, macrophages and dendritic cells. Dysregulated expression of LAPTM5 is implicated in the development of multiple immune system-related diseases. In the context of tumors, elevated LAPTM5 levels in immune cells are associated with decreased cell membrane levels of T cell receptors (TCR) or B cell receptors (BCR), leading to impaired antigen presentation and immune escape, thereby promoting tumor progression. Besides, LAPTM5 is critical for inducing non-apoptotic cell death in tumor parenchymal cells since its downregulation leads to inhibition of the cell death pathway in the tumor parenchyma and subsequent enhanced tumorigenesis. LAPTM5 also affects the cell cycle as the elevated LAPTM5 expression in solid tumors causes its inability to block the G0/G1 stage. In non-solid tumors, abnormal LAPTM5 expression disrupts blood cell development and causes irregular proliferation. Furthermore, in the nervous system, aberrant LAPTM5 expression in microglia is correlated with Alzheimer's disease severity. In this context, further preclinical research is essential to validate LAPTM5 as a potential target for diagnosis, therapy, and prognosis in immune-related disorders and tumors. This review summarized the current insights into LAPTM5's role in tumors and immune-related deficits, highlighting its potential as a valuable biomarker and therapeutic target.
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Affiliation(s)
- Peng-Peng Sun
- Department of Orthopedics Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Shi-Xia Liao
- Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, China
- Department of Anesthesiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Peng Sang
- Department of Orthopedics Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Mao-Mao Liu
- Department of Respiratory and Critical Care Medicine, Affiliated Hospital of Zunyi Medical University, Zunyi, China
| | - Ji-Bin Yang
- Department of Orthopedics Surgery, Affiliated Hospital of Zunyi Medical University, Zunyi, China
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Mészár Z, Erdei V, Szücs P, Varga A. Epigenetic Regulation and Molecular Mechanisms of Burn Injury-Induced Nociception in the Spinal Cord of Mice. Int J Mol Sci 2024; 25:8510. [PMID: 39126078 PMCID: PMC11313498 DOI: 10.3390/ijms25158510] [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: 07/21/2024] [Revised: 08/02/2024] [Accepted: 08/02/2024] [Indexed: 08/12/2024] Open
Abstract
Epigenetic mechanisms, including histone post-translational modifications (PTMs), play a critical role in regulating pain perception and the pathophysiology of burn injury. However, the epigenetic regulation and molecular mechanisms underlying burn injury-induced pain remain insufficiently explored. Spinal dynorphinergic (Pdyn) neurons contribute to heat hyperalgesia induced by severe scalding-type burn injury through p-S10H3-dependent signaling. Beyond p-S10H3, burn injury may impact various other histone H3 PTMs. Double immunofluorescent staining and histone H3 protein analyses demonstrated significant hypermethylation at H3K4me1 and H3K4me3 sites and hyperphosphorylation at S10H3 within the spinal cord. By analyzing Pdyn neurons in the spinal dorsal horn, we found evidence of chromatin activation with a significant elevation in p-S10H3 immunoreactivity. We used RNA-seq analysis to compare the effects of burn injury and formalin-induced inflammatory pain on spinal cord transcriptomic profiles. We identified 98 DEGs for burn injury and 86 DEGs for formalin-induced inflammatory pain. A limited number of shared differentially expressed genes (DEGs) suggest distinct central pain processing mechanisms between burn injury and formalin models. KEGG pathway analysis supported this divergence, with burn injury activating Wnt signaling. This study enhances our understanding of burn injury mechanisms and uncovers converging and diverging pathways in pain models with different origins.
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Affiliation(s)
- Zoltán Mészár
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary; (Z.M.); (P.S.)
| | - Virág Erdei
- Department of Radiology, Central Hospital of Northern Pest—Military Hospital, H-1134 Budapest, Hungary;
| | - Péter Szücs
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary; (Z.M.); (P.S.)
- HUN-REN-DE Neuroscience Research Group, H-4032 Debrecen, Hungary
| | - Angelika Varga
- Department of Anatomy, Histology and Embryology, Faculty of Medicine, University of Debrecen, H-4032 Debrecen, Hungary; (Z.M.); (P.S.)
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Zhou HM, Chen DH, Diao WJ, Wu YF, Zhang JG, Zhong L, Jiang ZY, Zhang X, Liu GL, Li Q. Inhibition of RhoGEF/RhoA alleviates regorafenib resistance and cancer stemness via Hippo signaling pathway in hepatocellular carcinoma. Exp Cell Res 2024; 436:113956. [PMID: 38341081 DOI: 10.1016/j.yexcr.2024.113956] [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: 10/04/2023] [Revised: 01/25/2024] [Accepted: 01/30/2024] [Indexed: 02/12/2024]
Abstract
Patients with hepatocellular carcinoma (HCC) are vulnerable to drug resistance. Although drug resistance has been taken much attention to HCC therapy, little is known of regorafenib and regorafenib resistance (RR). This study aimed to determine the drug resistance pattern and the role of RhoA in RR. Two regorafenib-resistant cell lines were constructed based on Huh7 and Hep3B cell lines. In vitro and in vivo assays were conducted to study RhoA expression, the activity of Hippo signaling pathway and cancer stem cell (CSC) traits. The data showed that RhoA was highly expressed, Hippo signaling was hypoactivated and CSC traits were more prominent in RR cells. Inhibiting RhoA could reverse RR, and the alliance of RhoA inhibition and regorafenib synergistically attenuated CSC phenotype. Furthermore, inhibiting LARG/RhoA increased Kibra/NF2 complex formation, prevented YAP from shuttling into the nucleus and repressed CD44 mRNA expression. Clinically, the high expression of RhoA correlated with poor prognosis. LARG, RhoA, YAP1 and CD44 show positive correlation with each other. Thus, inhibition of RhoGEF/RhoA has the potential to reverse RR and repress CSC phenotype in HCC.
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Affiliation(s)
- He-Ming Zhou
- Department of Clinical Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, No. 100 Haining Road, Shanghai, 200080, PR China
| | - Da-Hong Chen
- Department of Clinical Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, No. 100 Haining Road, Shanghai, 200080, PR China
| | - Wen-Jing Diao
- Department of Clinical Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, No. 100 Haining Road, Shanghai, 200080, PR China
| | - Ya-Fei Wu
- Department of Clinical Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, No. 100 Haining Road, Shanghai, 200080, PR China
| | - Ji-Gang Zhang
- Clinical Research Center, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, No. 100 Haining Road, Shanghai, 200080, PR China
| | - Lin Zhong
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, No. 100 Haining Road, Shanghai, 200080, PR China
| | - Zhong-Yi Jiang
- Department of General Surgery, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, No. 100 Haining Road, Shanghai, 200080, PR China
| | - Xue Zhang
- Department of Clinical Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, No. 100 Haining Road, Shanghai, 200080, PR China; Shanghai Eye Diseases Prevention & Treatment Center / Shanghai Eye Hospital, Shanghai, 200040, PR China
| | - Gao-Lin Liu
- Department of Clinical Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, No. 100 Haining Road, Shanghai, 200080, PR China; Shanghai Eye Diseases Prevention & Treatment Center / Shanghai Eye Hospital, Shanghai, 200040, PR China
| | - Qin Li
- Department of Clinical Pharmacy, Shanghai General Hospital, Shanghai Jiao Tong University School of Medicine, No. 100 Haining Road, Shanghai, 200080, PR China; Shanghai Eye Diseases Prevention & Treatment Center / Shanghai Eye Hospital, Shanghai, 200040, PR China.
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Zhang ZL, Wu ZY, Liu FY, Hang-YuChen, Zhai SD. Tetrandrine alleviates oxaliplatin-induced mechanical allodynia via modulation of inflammation-related genes. Front Mol Neurosci 2024; 17:1333842. [PMID: 38419796 PMCID: PMC10899404 DOI: 10.3389/fnmol.2024.1333842] [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: 11/06/2023] [Accepted: 01/18/2024] [Indexed: 03/02/2024] Open
Abstract
Oxaliplatin, a platinum-based chemotherapy drug, causes neuropathic pain, yet effective pharmacological treatments are lacking. Previously, we showed that tetrandrine (TET), with anti-inflammatory properties, reduces mechanical allodynia in nerve-injured mice. This study explores the effect of TET on oxaliplatin-induced mechanical allodynia and gene changes in mice. Male C57BL/6J mice received oxaliplatin intraperitoneally to induce mechanical allodynia. Post-treatment with TET or vehicle, the mechanical withdrawal threshold (WMT) was assessed using von Frey filaments. TET alleviated oxaliplatin-induced mechanical allodynia. RNA sequencing identified 365 differentially expressed genes (DEGs) in the Control vs. Oxaliplatin group and 229 DEGs in the Oxaliplatin vs. TET group. Pearson correlation analysis of co-regulated DEGs and inflammation-related genes (IRGs) revealed 104 co-regulated inflammation-related genes (Co-IRGs) (|cor| > 0.8, P < 0.01). The top 30 genes in the PPI network were identified. Arg2, Cxcl12, H2-Q6, Kdr, and Nfkbia were highlighted based on ROC analysis. Subsequently, Arg2, Cxcl12, Kdr, and Nfkbia were further verified by qRCR. Immune infiltration analysis indicated increased follicular CD4 T cell infiltration in oxaliplatin-treated mice, reduced by TET. Molecular docking showed strong binding affinity between TET and proteins encoded by Arg2, Cxcl12, Kdr, and Nfkbia. In summary, TET may alleviate oxaliplatin-induced peripheral neuropathy in clinical conditions.
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Affiliation(s)
- Zhi-Ling Zhang
- Department of Pharmacy, Peking University Third Hospital, Beijing, China
| | - Zi-Yang Wu
- Department of Pharmacy, Peking University Third Hospital, Beijing, China
| | - Feng-Yu Liu
- Key Laboratory for Neuroscience, Neuroscience Research Institute and Department of Neurobiology, School of Basic Medical Sciences, Ministry of Education/National Health Commission, Peking University, Beijing, China
| | - Hang-YuChen
- Department of Pharmacy, Peking University Third Hospital, Beijing, China
| | - Suo-Di Zhai
- Department of Pharmacy, Peking University Third Hospital, Beijing, China
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Wu Z, Li C, Zhu R, Cao Y, Chen TC, Cheng L. Reduced non-CpG methylation is a potential epigenetic target after spinal cord injury. Neural Regen Res 2023; 18:2489-2496. [PMID: 37282481 PMCID: PMC10360082 DOI: 10.4103/1673-5374.371399] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023] Open
Abstract
DNA methylation is a critical epigenetic regulator in the occurrence and development of diseases and is closely related to various functional responses in relation to spinal cord injury. To investigate the role of DNA methylation in spinal cord injury, we constructed a library with reduced-representation bisulfite sequencing data obtained at various time points (day 0-42) after spinal cord injury in mice. Global DNA methylation levels, specifically non-CpG (CHG and CHH) methylation levels, decreased modestly following spinal cord injury. Stages post-spinal cord injury were classified as early (day 0-3), intermediate (day 7-14), and late (day 28-42) based on similarity and hierarchical clustering of global DNA methylation patterns. The non-CpG methylation level, which included CHG and CHH methylation levels, was markedly reduced despite accounting for a minor proportion of total methylation abundance. At multiple genomic sites, including the 5' untranslated regions, promoter, exon, intron, and 3' untranslated regions, the non-CpG methylation level was markedly decreased following spinal cord injury, whereas the CpG methylation level remained unchanged at these locations. Approximately one-half of the differentially methylated regions were located in intergenic areas; the other differentially methylated regions in both CpG and non-CpG regions were clustered in intron regions, where the DNA methylation level was highest. The function of genes associated with differentially methylated regions in promoter regions was also investigated. From Gene Ontology analysis results, DNA methylation was implicated in a number of essential functional responses to spinal cord injury, including neuronal synaptic connection creation and axon regeneration. Notably, neither CpG methylation nor non-CpG methylation was implicated in the functional response of glial or inflammatory cells. In summary, our work elucidated the dynamic pattern of DNA methylation in the spinal cord following injury and identified reduced non-CpG methylation as an epigenetic target after spinal cord injury in mice.
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Affiliation(s)
- Zhourui Wu
- Key Laboratory of Spine and Spinal cord Injury Repair and Regeneration (Tongji University), Ministry of Education; Division of Spine, Department of Orthopedics, Tongji Hospital, Tongji University School of Medicine; Institute of Spinal and Spinal Cord Injury, Tongji University School of Medicine, Shanghai, China
| | - Chen Li
- Key Laboratory of Spine and Spinal cord Injury Repair and Regeneration (Tongji University), Ministry of Education; Division of Spine, Department of Orthopedics, Tongji Hospital, Tongji University School of Medicine; Institute of Spinal and Spinal Cord Injury, Tongji University School of Medicine, Shanghai, China
| | - Ran Zhu
- Key Laboratory of Spine and Spinal cord Injury Repair and Regeneration (Tongji University), Ministry of Education; Institute of Spinal and Spinal Cord Injury, Tongji University School of Medicine, Shanghai, China
| | - Yiqiu Cao
- Key Laboratory of Spine and Spinal cord Injury Repair and Regeneration (Tongji University), Ministry of Education; Institute of Spinal and Spinal Cord Injury, Tongji University School of Medicine, Shanghai, China
| | - Thomas C Chen
- Department of Neurosurgery, Keck School of Medical, University of Southern California, Los Angeles, CA, USA
| | - Liming Cheng
- Key Laboratory of Spine and Spinal cord Injury Repair and Regeneration (Tongji University), Ministry of Education; Division of Spine, Department of Orthopedics, Tongji Hospital, Tongji University School of Medicine; Institute of Spinal and Spinal Cord Injury, Tongji University School of Medicine, Shanghai, China
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Warner WS, Stubben C, Yeoh S, Light AR, Mahan MA. Next-generation RNA sequencing elucidates transcriptomic signatures of pathophysiologic nerve regeneration. Sci Rep 2023; 13:8856. [PMID: 37258605 PMCID: PMC10232541 DOI: 10.1038/s41598-023-35606-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2022] [Accepted: 05/20/2023] [Indexed: 06/02/2023] Open
Abstract
The cellular and molecular underpinnings of Wallerian degeneration have been robustly explored in laboratory models of successful nerve regeneration. In contrast, there is limited interrogation of failed regeneration, which is the challenge facing clinical practice. Specifically, we lack insight on the pathophysiologic mechanisms that lead to the formation of neuromas-in-continuity (NIC). To address this knowledge gap, we have developed and validated a novel basic science model of rapid-stretch nerve injury, which provides a biofidelic injury with NIC development and incomplete neurologic recovery. In this study, we applied next-generation RNA sequencing to elucidate the temporal transcriptional landscape of pathophysiologic nerve regeneration. To corroborate genetic analysis, nerves were subject to immunofluorescent staining for transcripts representative of the prominent biological pathways identified. Pathophysiologic nerve regeneration produces substantially altered genetic profiles both temporally and in the mature neuroma microenvironment, in contrast to the coordinated genetic signatures of Wallerian degeneration and successful regeneration. To our knowledge, this study presents as the first transcriptional study of NIC pathophysiology and has identified cellular death, fibrosis, neurodegeneration, metabolism, and unresolved inflammatory signatures that diverge from pathways elaborated by traditional models of successful nerve regeneration.
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Affiliation(s)
- Wesley S Warner
- Department of Neurosurgery, Clinical Neurosciences Center, The University of Utah, 175 North Medical Dr. East, Salt Lake City, UT, 84132, USA
| | - Christopher Stubben
- Bioinformatics Shared Resource, Huntsman Cancer Institute, University of Utah, Salt Lake City, USA
| | - Stewart Yeoh
- Department of Neurosurgery, Clinical Neurosciences Center, The University of Utah, 175 North Medical Dr. East, Salt Lake City, UT, 84132, USA
| | - Alan R Light
- Department of Anesthesiology, University of Utah, Salt Lake City, UT, USA
| | - Mark A Mahan
- Department of Neurosurgery, Clinical Neurosciences Center, The University of Utah, 175 North Medical Dr. East, Salt Lake City, UT, 84132, USA.
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Komatsu DE, Uddin SMZ, Gordon C, Kanjiya MP, Bogdan D, Achonu J, DiBua A, Iftikhar H, Ackermann A, Shah RJ, Shieh J, Bialkowska AB, Kaczocha M. Acute postoperative pain and dorsal root ganglia transcriptomic signatures following total knee arthroplasty (TKA) in rats: An experimental study. PLoS One 2022; 17:e0278632. [PMID: 36473007 PMCID: PMC9725137 DOI: 10.1371/journal.pone.0278632] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2022] [Accepted: 11/19/2022] [Indexed: 12/12/2022] Open
Abstract
Total knee arthroplasty (TKA) is the final treatment option for patients with advanced knee osteoarthritis (OA). Unfortunately, TKA surgery is accompanied by acute postoperative pain that is more severe than arthroplasty performed in other joints. Elucidating the molecular mechanisms specific to post-TKA pain necessitates an animal model that replicates clinical TKA procedures, induces acute postoperative pain, and leads to complete functional recovery. Here, we present a new preclinical TKA model in rats and report on functional and behavioral outcomes indicative of pain, analgesic efficacy, serum cytokine levels, and dorsal root ganglia (DRG) transcriptomes during the acute postoperative period. Following TKA, rats exhibited marked deficits in weight bearing that persisted for 28 days. Home cage locomotion, rearing, and gait were similarly impacted and recovered by day 14. Cytokine levels were elevated on postoperative days one and/or two. Treatment with morphine, ketorolac, or their combination improved weight bearing while gabapentin lacked efficacy. When TKA was performed in rats with OA, similar functional deficits and comparable recovery time courses were observed. Analysis of DRG transcriptomes revealed upregulation of transcripts linked to multiple molecular pathways including inflammation, MAPK signaling, and cytokine signaling and production. In summary, we developed a clinically relevant rat TKA model characterized by resolution of pain and functional recovery within five weeks and with pain-associated behavioral deficits that are partially alleviated by clinically administered analgesics, mirroring the postoperative experience of TKA patients.
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Affiliation(s)
- David E. Komatsu
- Department of Orthopaedics and Rehabilitation, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, United States of America
- * E-mail: (DEK); (MK)
| | - Sardar M. Z. Uddin
- Department of Orthopaedics and Rehabilitation, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, United States of America
| | - Chris Gordon
- Department of Anesthesiology, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, United States of America
| | - Martha P. Kanjiya
- Department of Anesthesiology, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, United States of America
| | - Diane Bogdan
- Department of Anesthesiology, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, United States of America
| | - Justice Achonu
- Department of Orthopaedics and Rehabilitation, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, United States of America
| | - Adriana DiBua
- Department of Anesthesiology, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, United States of America
| | - Hira Iftikhar
- Department of Anesthesiology, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, United States of America
| | - Amanda Ackermann
- Department of Anesthesiology, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, United States of America
| | - Rohan J. Shah
- Department of Anesthesiology, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, United States of America
| | - Jason Shieh
- Department of Medicine, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, United States of America
| | - Agnieszka B. Bialkowska
- Department of Medicine, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, United States of America
| | - Martin Kaczocha
- Department of Anesthesiology, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, United States of America
- Stony Brook University Pain and Analgesia Research Center, Renaissance School of Medicine, Stony Brook University, Stony Brook, NY, United States of America
- * E-mail: (DEK); (MK)
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Huang J, Lin F, Hu Y, Bloe CB, Wang D, Zhang W. From Initiation to Maintenance: HIV-1 Gp120-induced Neuropathic Pain Exhibits Different Molecular Mechanisms in the Mouse Spinal Cord Via Bioinformatics Analysis Based on RNA Sequencing. J Neuroimmune Pharmacol 2022; 17:553-575. [PMID: 35059976 DOI: 10.1007/s11481-021-10044-1] [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: 10/24/2021] [Accepted: 12/09/2021] [Indexed: 01/13/2023]
Abstract
Human immunodeficiency virus (HIV), which causes acquired immunodeficiency syndrome (AIDS), remains one of the most diverse crucial health and development challenges around the world. People infected with HIV constitute a large patient population, and a significant number of them experience neuropathic pain. To study the key mechanisms that mediate HIV-induced neuropathic pain (HNP), we established an HNP mouse model via intrathecal injection of the HIV-1 envelope glycoprotein gp120. The L3~L5 spinal cord was isolated on postoperative days 1/12 (POD1/12), 1 (POD1), and 14 (POD14) for RNA sequencing to investigate the gene expression profiles of the initiation, transition, and maintenance stages of HNP. A total of 1682, 430, and 413 differentially expressed genes were obtained in POD1/12, POD1, and POD14, respectively, and their similarity was low. Bioinformatics analysis confirmed that POD1/12, POD1, and POD14 exhibited different biological processes and signaling pathways. Inflammation, oxidative damage, apoptosis, and inflammation-related signaling pathways were enriched on POD1/12. Inflammation, chemokine activity, and downstream signaling regulated by proinflammatory cytokines, such as the MTOR signaling pathway, were enriched on POD1, while downregulation of ion channel activity, mitochondrial damage, endocytosis, MAPK and neurotrophic signaling pathways developed on POD14. Additionally, we screened key genes and candidate genes, which were verified at the transcriptional and translational levels. Our results suggest that the initiation and maintenance of HNP are regulated by different molecular mechanisms. Therefore, our research may yield a fresh and deeper understanding of the mechanisms underlying HNP, providing accurate molecular targets for HNP therapy.
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Affiliation(s)
- Jian Huang
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, China
| | - Fei Lin
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, China
| | - Yanling Hu
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, China
| | - Chris Bloe Bloe
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, China
| | - Dan Wang
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, China
| | - Wenping Zhang
- Zhejiang Provincial Key Laboratory of Silkworm Bioreactor and Biomedicine, College of Life Sciences and Medicine, Zhejiang Sci-Tech University, Hangzhou, Zhejiang, China.
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Sabirov D, Ogurcov S, Baichurina I, Blatt N, Rizvanov A, Mukhamedshina Y. Molecular diagnostics in neurotrauma: Are there reliable biomarkers and effective methods for their detection? Front Mol Biosci 2022; 9:1017916. [PMID: 36250009 PMCID: PMC9557129 DOI: 10.3389/fmolb.2022.1017916] [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: 08/12/2022] [Accepted: 09/12/2022] [Indexed: 12/05/2022] Open
Abstract
To date, a large number of studies are being carried out in the field of neurotrauma, researchers not only establish the molecular mechanisms of the course of the disorders, but are also involved in the search for effective biomarkers for early prediction of the outcome and therapeutic intervention. Particular attention is paid to traumatic brain injury and spinal cord injury, due to the complex cascade of reactions in primary and secondary injury that affect pathophysiological processes and regenerative potential of the central nervous system. Despite a wide range of methods available methods to study biomarkers that correlate with the severity and degree of recovery in traumatic brain injury and spinal cord injury, development of reliable test systems for clinical use continues. In this review, we evaluate the results of recent studies looking for various molecules acting as biomarkers in the abovementioned neurotrauma. We also summarize the current knowledge of new methods for studying biological molecules, analyzing their sensitivity and limitations, as well as reproducibility of results. In this review, we also highlight the importance of developing reliable and reproducible protocols to identify diagnostic and prognostic biomolecules.
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Affiliation(s)
- Davran Sabirov
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Sergei Ogurcov
- Neurosurgical Department No. 2, Republic Clinical Hospital, Kazan, Russia
| | - Irina Baichurina
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
- *Correspondence: Irina Baichurina,
| | - Nataliya Blatt
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Albert Rizvanov
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
| | - Yana Mukhamedshina
- Institute of Fundamental Medicine and Biology, Kazan Federal University, Kazan, Russia
- Department of Histology, Cytology, and Embryology, Kazan State Medical University, Kazan, Russia
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10
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Yan L, Fu J, Dong X, Chen B, Hong H, Cui Z. Identification of hub genes in the subacute spinal cord injury in rats. BMC Neurosci 2022; 23:51. [PMID: 36030234 PMCID: PMC9419366 DOI: 10.1186/s12868-022-00737-5] [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: 04/14/2022] [Accepted: 08/01/2022] [Indexed: 11/29/2022] Open
Abstract
Background Spinal cord injury (SCI) is a common trauma in clinical practices. Subacute SCI is mainly characterized by neuronal apoptosis, axonal demyelination, Wallerian degeneration, axonal remodeling, and glial scar formation. It has been discovered in recent years that inflammatory responses are particularly important in subacute SCI. However, the mechanisms mediating inflammation are not completely clear. Methods The gene expression profiles of GSE20907, GSE45006, and GSE45550 were downloaded from the GEO database. The models of the three gene expression profiles were all for SCI to the thoracic segment of the rat. The differentially expressed genes (DEGs) and weighted correlation network analysis (WGCNA) were performed using R software, and functional enrichment analysis and protein–protein interaction (PPI) network were performed using Metascape. Module analysis was performed using Cytoscape. Finally, the relative mRNA expression level of central genes was verified by RT-PCR. Results A total of 206 candidate genes were identified, including 164 up-regulated genes and 42 down-regulated genes. The PPI network was evaluated, and the candidate genes enrichment results were mainly related to the production of tumor necrosis factors and innate immune regulatory response. Twelve core genes were identified, including 10 up-regulated genes and 2 down-regulated genes. Finally, seven hub genes with statistical significance in both the RT-PCR results and expression matrix were identified, namely Itgb1, Ptprc, Cd63, Lgals3, Vav1, Shc1, and Casp4. They are all related to the activation process of microglia. Conclusion In this study, we identified the hub genes and signaling pathways involved in subacute SCI using bioinformatics methods, which may provide a molecular basis for the future treatment of SCI.
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Affiliation(s)
- Lei Yan
- The Second Affiliated Hospital of Nantong University, No.6, North Road, 226000, Haierxiang, Nantong, Jiangsu, People's Republic of China
| | - Jiawei Fu
- The Second Affiliated Hospital of Nantong University, No.6, North Road, 226000, Haierxiang, Nantong, Jiangsu, People's Republic of China
| | - Xiong Dong
- The Second Affiliated Hospital of Nantong University, No.6, North Road, 226000, Haierxiang, Nantong, Jiangsu, People's Republic of China
| | - Baishen Chen
- The Second Affiliated Hospital of Nantong University, No.6, North Road, 226000, Haierxiang, Nantong, Jiangsu, People's Republic of China
| | - Hongxiang Hong
- The Second Affiliated Hospital of Nantong University, No.6, North Road, 226000, Haierxiang, Nantong, Jiangsu, People's Republic of China
| | - Zhiming Cui
- The Second Affiliated Hospital of Nantong University, No.6, North Road, 226000, Haierxiang, Nantong, Jiangsu, People's Republic of China.
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11
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A feasibility study on yoga's mechanism of action for chronic low back pain: psychological and neurophysiological changes, including global gene expression and DNA methylation, following a yoga intervention for chronic low back pain. Pilot Feasibility Stud 2022; 8:142. [PMID: 35794661 PMCID: PMC9260994 DOI: 10.1186/s40814-022-01103-2] [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: 12/13/2020] [Accepted: 06/23/2022] [Indexed: 01/11/2023] Open
Abstract
INTRODUCTION Yoga has been shown to reduce pain and improve function in populations with chronic low back pain (cLBP), yet the underlying molecular mechanisms remain elusive. This study examined the feasibility and acceptability of a yoga research protocol, including recruitment, retention, and data collection, and investigated the preliminary effects of yoga on psychological and neurophysiological functions, including gene expression and DNA methylation profiles, in participants with cLBP. METHODS A one-arm trial was conducted with 11 participants with cLBP who enrolled in a 12-week yoga intervention. Data on subjective pain characteristics, quantitative sensory testing, and blood for analysis of differentially expressed genes and CpG methylation was collected prior to the start of the intervention and at study completion. RESULTS Based on pre-determined feasibility and acceptability criteria, the yoga intervention was found to be feasible and highly acceptable to participants. There was a reduction in pain severity, interference, and mechanical pain sensitivity post-yoga and an increase in emotion regulation and self-efficacy. No adverse reactions were reported. Differential expression analysis demonstrated that the yoga intervention induced increased expression of antisense genes, some of which serve as antisense to known pain genes. In addition, there were 33 differentially hypomethylated positions after yoga (log2 fold change ≥ 1), with enrichment of genes involved in NIK/NF-kB signaling, a major pathway that modulates immune function and inflammation. DISCUSSION/CONCLUSIONS The study supports the feasibility and acceptability of the proposed protocol to test a specific mechanism of action for yoga in individuals with cLBP. These results also support the notion that yoga may operate through our identified psychological and neurophysiologic pathways to influence reduced pain severity and interference.
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12
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Song G, Zhang WM, Wang YZ, Guo JB, Zheng YL, Yang Z, Su X, Chen YM, Xie Q, Wang XQ. Long Non-coding RNA and mRNA Expression Change in Spinal Dorsal Horn After Exercise in Neuropathic Pain Rats. Front Mol Neurosci 2022; 15:865310. [PMID: 35431794 PMCID: PMC9005956 DOI: 10.3389/fnmol.2022.865310] [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: 01/29/2022] [Accepted: 03/07/2022] [Indexed: 11/13/2022] Open
Abstract
Exercise can help inhibition of neuropathic pain (NP), but the related mechanism remains being explored. In this research, we performed the effect of swimming exercise on the chronic constriction injury (CCI) rats. Compared with CCI group, the mechanical withdrawal threshold of rats in the CCI-Swim group significantly increased on the 21st and 28th day after CCI surgery. Second-generation RNA-sequencing technology was employed to investigate the transcriptomes of spinal dorsal horns in the Sham, CCI, and CCI-Swim groups. On the 28th day post-operation, 306 intersecting long non-coding RNAs (lncRNAs) and 173 intersecting mRNAs were observed between the CCI vs Sham group and CCI-Swim vs CCI groups. Then, the biological functions of lncRNAs and mRNAs in the spinal dorsal horn of CCI rats were then analyzed. Taking the results together, this study could provide a novel perspective for the treatment for NP.
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Affiliation(s)
- Ge Song
- Department of Rehabilitation Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Wei-Ming Zhang
- Department of Rehabilitation Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yi-Zu Wang
- Department of Rehabilitation Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jia-Bao Guo
- The Second Clinical Medical School, Xuzhou Medical University, Xuzhou, China
| | - Yi-Li Zheng
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
| | - Zheng Yang
- Department of Rehabilitation Medicine, Shanghai Jiao Tong University Affiliated Sixth People’s Hospital, Shanghai, China
| | - Xuan Su
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
| | - Yu-Meng Chen
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
| | - Qing Xie
- Department of Rehabilitation Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
- *Correspondence: Qing Xie,
| | - Xue-Qiang Wang
- Department of Sport Rehabilitation, Shanghai University of Sport, Shanghai, China
- Department of Rehabilitation Medicine, Shanghai Shangti Orthopaedic Hospital, Shanghai, China
- Xue-Qiang Wang,
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13
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The Antinociceptive Potential of Camellia japonica Leaf Extract, (−)-Epicatechin, and Rutin against Chronic Constriction Injury-Induced Neuropathic Pain in Rats. Antioxidants (Basel) 2022; 11:antiox11020410. [PMID: 35204294 PMCID: PMC8869459 DOI: 10.3390/antiox11020410] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 02/11/2022] [Accepted: 02/15/2022] [Indexed: 01/14/2023] Open
Abstract
Neuropathic pain is caused by a lesion or disease of the somatosensory nervous system. Currently, prescribed treatments are still unsatisfactory or have limited effectiveness. Camellia japonica leaves are known to have antioxidant and anti-inflammatory properties.; however, their antinociceptive efficacy has not yet been explored. We examined the antinociceptive efficacy and underlying mechanism of C. japonica leaf extract (CJE) in chronic constriction injury (CCI)-induced neuropathic pain models. To test the antinociceptive activity of CJE, three types of allodynia were evaluated: punctate allodynia using von Frey filaments, dynamic allodynia using a paintbrush and cotton swab, and cold allodynia using a cold plate test. CCI rats developed neuropathic pain representing increases in the three types of allodynia and spontaneous pain. In addition, CCI rats showed high phosphorylation levels of mitogen-activated protein kinases (MAPKs), transcription factors, and nociceptive mediators in dorsal root ganglion (DRG). The ionized calcium-binding adapter molecule 1 levels and neuroinflammation also increased following CCI surgery in the spinal cord. CJE and its active components have potential antinociceptive effects against CCI-induced neuropathic pain that might be mediated by MAPK activation in the DRG and microglial activation in the spinal cord. These findings suggest that CJE, (−)-epicatechin, and rutin could be novel candidates for neuropathic pain management.
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14
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Gene Differential Expression and Interaction Networks Illustrate the Biomarkers and Molecular Mechanisms of Atherosclerotic Cerebral Infarction. JOURNAL OF HEALTHCARE ENGINEERING 2022; 2022:3912697. [PMID: 35070236 PMCID: PMC8769835 DOI: 10.1155/2022/3912697] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/11/2021] [Revised: 11/26/2021] [Accepted: 11/30/2021] [Indexed: 11/18/2022]
Abstract
Atherosclerotic cerebral infarction (ACI) seriously threatens the health of the senile patients, and the strategies are urgent for the diagnosis and treatment of ACI. This study investigated the mRNA profiling of the patients with ischemic stroke and atherosclerosis via excavating the datasets in the GEO database and attempted to reveal the biomarkers and molecular mechanism of ACI. In this study, GES16561 and GES100927 were obtained from Gene Expression Omnibus (GEO) database, and the related differentially expressed genes (DEGs) were analyzed with R language. Furthermore, the DEGs were analyzed with Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis. Besides, the protein-protein interaction (PPI) network of DEGs was analyzed by STRING database and Cytoscape. The results showed that 133 downregulated DEGs and 234 upregulated DEGs were found in GES16561, 25 downregulated DEGs and 104 upregulated DEGs were found in GSE100927, and 6 common genes were found in GES16561 and GES100927. GO enrichment analysis showed that the functional models of the common genes were involved in neutrophil activation, neutrophil degranulation, neutrophil activation, and immune response. KEGG enrichment analysis showed that the DEGs in both GSE100927 and GSE16561 were connected with the pathways including Cell adhesion molecules (CAMs), Cytokine-cytokine receptor interaction, Phagosome, Antigen processing and presentation, and Staphylococcus aureus infection. The PPI network analysis showed that 9 common DEGs were found in GSE100927 and GSE16561, and a cluster with 6 nodes and 12 edges was also identified by PPI network analysis. In conclusion, this study suggested that FCGR3A and MAPK pathways were connected with ACI.
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15
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Wu B, Zhao Q, Li Z, Min Z, Shi M, Nie X, He Q, Gui R. Environmental level bisphenol A accelerates alterations of the reno-cardiac axis by the MAPK cascades in male diabetic rats: An analysis based on transcriptomic profiling and bioinformatics. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 287:117671. [PMID: 34435562 DOI: 10.1016/j.envpol.2021.117671] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2021] [Revised: 06/25/2021] [Accepted: 06/26/2021] [Indexed: 06/13/2023]
Abstract
In humans and animal models, the kidneys and cardiovascular systems are negatively affected by BPA from the environment. It is considered that BPA have some potential estrogen-like and non-hormone-like properties. In this study, RNA-sequencing and its-related bioinformatics was used as the basic strategy to clarify the characteristic mechanisms of kidney-heart axis remodeling and dysfunction in diabetic male rats under BPA exposure. We found that continuous BPA exposure in diabetic rats aggravated renal impairment, and caused hemodynamic disorders and dysfunctions. There were 655 and 125 differentially expressed genes in the kidney and heart, respectively. For the kidneys, functional annotation and enrichment, and gene set enrichment analyses identified bile acid secretion related to lipid synthesis and transport, and MAPK cascade pathways. For the heart, these bioinformatics analyses clearly pointed to MAPKs pathways. A total of 12 genes and another total of 6 genes were identified from the kidney tissue and heart tissue, respectively. Western blotting showed that exposure to BPA activated MAPK cascades in both organs. In this study, the exacerbated remodeling of diabetic kidney-heart axis under BPA exposure and diabetes might occur through hemodynamics, metabolism disorders, and the immune-inflammatory response, as well as continuous estrogen-like stimulation, with focus on the MAPK cascades.
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Affiliation(s)
- Bin Wu
- Department of Blood Transfusion, The Third Xiangya Hospital, Central South University, Changsha, China; Wuhan Hospital of Traditional Chinese and Western Medicine, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China; Department of Physiology, Pathophysiology, Pharmacology and Toxicology (Laboratory of Physiological Science), Hubei University of Arts and Science, Xiangyang, China
| | - Qiangqiang Zhao
- Department of Blood Transfusion, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Zuoneng Li
- Institute of Environment Health and Food Safety, Wuhan Center for Diseases Control and Prevention, Wuhan, China
| | - Zhiteng Min
- Department of Occupational Health, Wuhan Center for Diseases Control and Prevention, Wuhan, China; Key Laboratory of Occupational Hazard Identification and Control of Hubei Province, Wuhan University of Science and Technology, Wuhan, China
| | - Mengdie Shi
- Institute of Environment Health and Food Safety, Wuhan Center for Diseases Control and Prevention, Wuhan, China
| | - Xinmin Nie
- Department of Laboratory Medicine, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Qingnan He
- Department of Pediatrics, The Third Xiangya Hospital, Central South University, Changsha, China
| | - Rong Gui
- Department of Blood Transfusion, The Third Xiangya Hospital, Central South University, Changsha, China.
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16
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Nie H, Liu B, Yin C, Chen R, Wang J, Zeng D, Tai Y, Xie J, He D, Liu B. Gene Expression Profiling of Contralateral Dorsal Root Ganglia Associated with Mirror-Image Pain in a Rat Model of Complex Regional Pain Syndrome Type-I. J Pain Res 2021; 14:2739-2756. [PMID: 34512013 PMCID: PMC8426644 DOI: 10.2147/jpr.s322372] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2021] [Accepted: 08/18/2021] [Indexed: 12/17/2022] Open
Abstract
Background Mirror-image pain (MIP), which develops from the healthy body region contralateral to the actual injured site, is a mysterious pain phenomenon accompanying many chronic pain conditions, such as complex regional pain syndrome (CRPS). However, the pathogenesis of MIP still remains largely unknown. The purpose of this study is to perform an expression profiling to identify genes related to MIP in an animal model of CRPS-I. Methods We established a rat chronic post-ischemic pain (CPIP) model to mimic human CRPS-I. RNA-sequencing (RNA-Seq), bioinformatics, qPCR, immunostaining, and animal behavioral assays were used to screen potential genes in the contralateral dorsal root ganglia (DRG) that may be involved in MIP. Results The CPIP model rats developed robust and persistent MIP in contralateral hind paws. Bilateral DRG neurons did not exhibit obvious neuronal damage. RNA-Seq of contralateral DRG from CPIP model rats identified a total 527 differentially expressed genes (DEGs) vs sham rats. The expression changes of several representative DEGs were further verified by qPCR. Bioinformatics analysis indicated that the immune system process, innate immune response, and cell adhesion were among the mostly enriched biological processes, which are important processes involved in pain sensitization, neuroinflammation, and chronic pain. We further identified DEGs potentially involved in pain mechanisms or enriched in small- to medium-sized sensory neurons or TRPV1-lineage nociceptors. By comparing with published datasets summarizing genes enriched in pain mechanisms, we sorted out a core set of genes which might contribute to nociception and the pain mechanism in MIP. Conclusion We provided by far the first study to profile gene expression changes and pathway analysis of contralateral DRG for the studying of MIP mechanisms. This work may provide novel insights into understanding the mysterious mechanisms underlying MIP.
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Affiliation(s)
- Huimin Nie
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, 310053, People's Republic of China
| | - Boyu Liu
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, 310053, People's Republic of China
| | - Chengyu Yin
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, 310053, People's Republic of China
| | - Ruixiang Chen
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, 310053, People's Republic of China
| | - Jie Wang
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, 310053, People's Republic of China
| | - Danyi Zeng
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, 310053, People's Republic of China
| | - Yan Tai
- Academy of Chinese Medicine Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, People's Republic of China
| | - Jingdun Xie
- Department of Anesthesiology, Sun Yat-Sen University Cancer Center, State Key Laboratory of Oncology in Southern China, Collaborative Innovation for Cancer Medicine, Guangzhou, Guangdong, 510060, People's Republic of China
| | - Dongwei He
- Laboratory of Pathology, Hebei Cancer Institute, the Fourth Hospital of Hebei Medical University, Shijiazhuang, 050000, People's Republic of China
| | - Boyi Liu
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, 310053, People's Republic of China
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17
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Effect of Interleukin-1β on Gene Expression Signatures in Schwann Cells Associated with Neuropathic Pain. Neurochem Res 2021; 46:2958-2968. [PMID: 34264480 DOI: 10.1007/s11064-021-03400-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Revised: 05/25/2021] [Accepted: 07/09/2021] [Indexed: 10/20/2022]
Abstract
Interleukin-1β (IL-1β) plays a critical role in the development of neuropathic pain through activation of Schwann cells (SCs) after nerve injury. Here, we applied an RNA sequencing (RNA-seq) approach to identify the effect of IL-1β on gene signatures of a rat SC line (RSC96) and the potential molecular mechanisms underlying the development of neuropathic pain. RNA-seq data demonstrated a total of 57 significantly differentially expressed genes (DEGs) with 35 up-regulated and 22 down-regulated between SCs treated with IL-1β, and control SCs without treatment. Bioinformatics analysis showed that key upregulated DEGs included those associated with immune and inflammation-related processes, neurotrophin production and SC proliferation. Five proteins encoded by key upregulated DEGs (Ceacam1, Hap1, Irs3, Lgi4 and Mif) were further verified by Western blot. Consistent with the RNA-Seq results, the expression of key genes was confirmed in SCs by immunofluorescence of the chronic constriction injury (CCI) sciatic nerve in rats. Furthermore, we demonstrated that treatment with IL-1β resulted in an increase in p38/ERK phosphorylation, and activators of p38/ERK enhanced the effect of IL-1β on the expression some of the key genes, whereas p38/ERK inhibitors reversed these effects. In conclusion, the present study highlights key genes involved in the development of neuropathic pain through activation of SCs after nerve injury. Identification of these genes and subsequent evidence of their mediation by IL-1β treatment promote our understanding of molecular mechanisms of nerve injury induced neuropathic pain, and highlight potential molecular targets for the treatment of neuropathic pain.
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18
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Ye G, Lin C, Zhang Y, Ma Z, Chen Y, Kong L, Yuan L, Ma T. Quercetin Alleviates Neuropathic Pain in the Rat CCI Model by Mediating AMPK/MAPK Pathway. J Pain Res 2021; 14:1289-1301. [PMID: 34040433 PMCID: PMC8141401 DOI: 10.2147/jpr.s298727] [Citation(s) in RCA: 28] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2020] [Accepted: 04/23/2021] [Indexed: 12/31/2022] Open
Abstract
Context Quercetin (que) is one abundant flavonol with a variety of biological activities. Previous studies have shown quercetin can reduce neuropathic pain in rats with chronic constriction injury (CCI). Objective To evaluate the effects of quercetin on neuropathic pain in CCI model and explore its underlying mechanism in vivo. Materials and Methods CCI model was established by ligating the sciatic nerve of right leg on the SD rats. They were divided into ten groups: sham group, CCI model, sham+ que, CCI+ que group (30, 60, 120 mg/kg), CCI+ AICAR, CCI+ que+ compound C, CCI+etoricoxib, and the control group. They were administered for 28 days, and were performed the mechanical withdrawal threshold (MWT) and thermal withdrawal latency (TWL) during the experiment. At the end of the experiment, sciatic nerves and spinal cord segments of rats were collected, ELISA detected the expression of inflammatory factors, detected the microglia and astrocytes with fluorescence, and Western blot detected AMPK/MAPK pathway. Results Que could increase the MWT of CCI rats, improve the TWL of plantar, and reduce the inflammatory cells at the ligation site of the sciatic nerve. Also, que could reduce the levels of TNF-α, IL-6, and IL-1β. Western blotting results showed that p-38 MAPK, p-ERK, and p-JNK were activated in the spinal dorsal horn of CCI model group. After treatment with que and AMPK agonists, the phosphorylation levels of related proteins were inhibited. In addition, the analgesic effect of que was abolished when the AMPK inhibitor was added. Discussion and Conclusion Quercetin alleviated the inflammatory response of sciatic nerve and spinal dorsal horn in rats induced by CCI. Quercetin alleviates neuralgia in CCI rats by activating AMPK pathway and inhibiting MAPK pathway and its downstream targets, p-38, p-ERK, and p-JNK.
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Affiliation(s)
- Guangyao Ye
- Department of Anesthesiology, Ningbo No.6 Hospital, Ningbo, 315040, People's Republic of China
| | - Chunyan Lin
- Department of Anesthesiology, Ningbo No.6 Hospital, Ningbo, 315040, People's Republic of China
| | - Yu Zhang
- Department of Anesthesiology, Ningbo No.6 Hospital, Ningbo, 315040, People's Republic of China
| | - Zihan Ma
- School of Medicine, Ningbo University, Ningbo, 315211, People's Republic of China
| | - Yuebo Chen
- Department of Anesthesiology, Ningbo No.6 Hospital, Ningbo, 315040, People's Republic of China
| | - Lingsi Kong
- Department of Anesthesiology, Ningbo No.6 Hospital, Ningbo, 315040, People's Republic of China
| | - Liyong Yuan
- Department of Anesthesiology, Ningbo No.6 Hospital, Ningbo, 315040, People's Republic of China
| | - Tao Ma
- Department of Anesthesiology and Pharmacology, Xuzhou Medical University, Xuzhou, 221000, People's Republic of China
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Su S, Li M, Wu D, Cao J, Ren X, Tao YX, Zang W. Gene Transcript Alterations in the Spinal Cord, Anterior Cingulate Cortex, and Amygdala in Mice Following Peripheral Nerve Injury. Front Cell Dev Biol 2021; 9:634810. [PMID: 33898422 PMCID: PMC8059771 DOI: 10.3389/fcell.2021.634810] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2020] [Accepted: 03/05/2021] [Indexed: 12/19/2022] Open
Abstract
Chronic neuropathic pain caused by nerve damage is a most common clinical symptom, often accompanied by anxiety- and depression-like symptoms. Current treatments are very limited at least in part due to incompletely understanding mechanisms underlying this disorder. Changes in gene expression in the dorsal root ganglion (DRG) have been acknowledged to implicate in neuropathic pain genesis, but how peripheral nerve injury alters the gene expression in other pain-associated regions remains elusive. The present study carried out strand-specific next-generation RNA sequencing with a higher sequencing depth and observed the changes in whole transcriptomes in the spinal cord (SC), anterior cingulate cortex (ACC), and amygdala (AMY) following unilateral fourth lumbar spinal nerve ligation (SNL). In addition to providing novel transcriptome profiles of long non-coding RNAs (lncRNAs) and mRNAs, we identified pain- and emotion-related differentially expressed genes (DEGs) and revealed that numbers of these DEGs displayed a high correlation to neuroinflammation and apoptosis. Consistently, functional analyses showed that the most significant enriched biological processes of the upregulated mRNAs were involved in the immune system process, apoptotic process, defense response, inflammation response, and sensory perception of pain across three regions. Moreover, the comparisons of pain-, anxiety-, and depression-related DEGs among three regions present a particular molecular map among the spinal cord and supraspinal structures and indicate the region-dependent and region-independent alterations of gene expression after nerve injury. Our study provides a resource for gene transcript expression patterns in three distinct pain-related regions after peripheral nerve injury. Our findings suggest that neuroinflammation and apoptosis are important pathogenic mechanisms underlying neuropathic pain and that some DEGs might be promising therapeutic targets.
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Affiliation(s)
- Songxue Su
- Department of Anatomy, College of Basic Medicine, Zhengzhou University, Zhengzhou, China.,Neuroscience Research Institute, Zhengzhou University Academy of Medical Sciences, Zhengzhou, China
| | - Mengqi Li
- Neuroscience Research Institute, Zhengzhou University Academy of Medical Sciences, Zhengzhou, China.,Department of Anesthesiology, Pain and Perioperative Medicine, The First Affiliated Hospital of Zhengzhou University, Zhengzhou, China
| | - Di Wu
- Department of Bioinformatics, College of Life Sciences, Zhengzhou University, Zhengzhou, China
| | - Jing Cao
- Department of Anatomy, College of Basic Medicine, Zhengzhou University, Zhengzhou, China.,Neuroscience Research Institute, Zhengzhou University Academy of Medical Sciences, Zhengzhou, China
| | - Xiuhua Ren
- Department of Anatomy, College of Basic Medicine, Zhengzhou University, Zhengzhou, China.,Neuroscience Research Institute, Zhengzhou University Academy of Medical Sciences, Zhengzhou, China
| | - Yuan-Xiang Tao
- Department of Anesthesiology, Rutgers New Jersey Medical School, The State University of New Jersey, Newark, NJ, United States
| | - Weidong Zang
- Department of Anatomy, College of Basic Medicine, Zhengzhou University, Zhengzhou, China.,Neuroscience Research Institute, Zhengzhou University Academy of Medical Sciences, Zhengzhou, China
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20
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Wang X, Jiang Y, Li J, Wang Y, Tian Y, Guo Q, Cheng Z. DUSP1 Promotes Microglial Polarization toward M2 Phenotype in the Medial Prefrontal Cortex of Neuropathic Pain Rats via Inhibition of MAPK Pathway. ACS Chem Neurosci 2021; 12:966-978. [PMID: 33666084 DOI: 10.1021/acschemneuro.0c00567] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Shifting microglial polarization from M1 toward M2 phenotype represents a promising therapeutic strategy for neuropathic pain (NP). Dual-specificity phosphatase-1 (DUSP1) is a key component in regulating anti-inflammatory response. The medial prefrontal cortex (mPFC) is implicated in emotional disorders associated with NP and constitutes a neuroanatomical substrate for exploring mechanisms underlying NP. This study aims to investigate whether DUSP1 regulates microglial M1/M2 polarization in the mPFC in a rat model of NP. Rat model of NP was established by chronic constriction injury (CCI) of the rat sciatic nerve. Lipopolysaccharide (LPS) was used to activate HAPI rat microglial cells as an in vitro inflammatory model. CCI-induced decreased pain threshold, increased cell apoptosis in mPFC, elevated pro-inflammatory M1/M2 microglia ratio, and activated MAPK signaling in the mPFC of rats. Importantly, intra-mPFC injection of DUSP1-expressing lentivirus counteracted these abnormalities. In vitro assay further confirmed that DUSP1 overexpression switched microglial M1 to M2 polarization through inhibition of MAPK signaling activation. DUSP1 switched microglial M1 to M2 polarization in the mPFC and attenuated CCI-induced NP by inhibiting the MAPK signaling.
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Affiliation(s)
- Ximei Wang
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - Yuan Jiang
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - Jingyi Li
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - Yunjiao Wang
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - Ying Tian
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - Qulian Guo
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
| | - Zhigang Cheng
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha 410008, Hunan, China
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21
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Hozumi T, Sawai S, Jitsuishi T, Kitajo K, Inage K, Eguchi Y, Shiga Y, Narita M, Orita S, Ohtori S, Yamaguchi A. Gene expression profiling of the spinal cord at the chronic pain phase identified CDKL5 as a candidate gene for neural remodeling. Neurosci Lett 2021; 749:135772. [PMID: 33636287 DOI: 10.1016/j.neulet.2021.135772] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 02/15/2021] [Accepted: 02/20/2021] [Indexed: 10/22/2022]
Abstract
BACKGROUND Chronic pain is a highly refractory and complicated condition that persists even without nociception. Several genome-wide gene expression analyses have shown that the immune response and inflammatory cytokines affect chronic pain establishment in the acute pain phase. However, compared with the acute phase, the chronic phase has a poorly elucidated gene expression profile. This study aimed to determine the gene expression profile in the spinal cord of a neuropathic pain mouse model in the chronic phase to elucidate the chronic pain characteristics. METHODS We established a sciatic nerve cuff mouse model as a neuropathic pain model by placing a 2-mm section of a split PE-20 polyethylene tube around the sciatic nerve. The spinal cord was harvested at the L4-6 level at 28 postoperative days. Next, we examined differentially expressed genes (DEGs) through RNA sequencing (RNA-seq) compared with the sham group; moreover, we conducted enrichment analyses of the expressed genes. To reveal the chronic pain characteristics, we compared the gene expression profiles of the spinal cord between the acute and chronic phases in the neuropathic pain model. Among the chronic pain-related genes categorized in the dendrites, we focused on cyclin-dependent kinase-like 5 (CDKL5). We analyzed CDKL5 expression and function using real-time polymerase chain reaction (PCR), immunohistochemistry, and neurite extension assay in Neuro 2a (N2a) cells. We used three types of CDKL5 plasmids: wild type, nuclear localization signal-attached, and K42R kinase-dead CDKL5. RESULTS We identified 403 DEGs, including 104 upregulated and 43 downregulated genes (false discovery rate < 0.01). Rather than inflammation or immune response, the most enriched terms in the chronic phase were "regulation of plasma membrane-bounded cell projection organization" and "dendrite." Real-time PCR assay confirmed increased CDKL5 expression in the ipsilateral dorsal horn. CDKL5 was broadly expressed in the ipsilateral dorsal horn across all layers. The neurite extension assay revealed that the cytoplasmic kinase function of CDKL5 was necessary for neurite outgrowth in N2a cells. CONCLUSION RNA-seq of the spinal cord revealed that the most enriched genes during the chronic pain phase were involved in regulating axon and dendrite morphogenesis, including CDKL5. Our findings suggest that neural remodeling affects chronic pain establishment. Since patients with CDKL5 mutations have shown reduced pain perception, our findings suggest that CDKL5 in the spinal cord could result in neural remodeling during the chronic pain phase through cytoplasmic kinase activity.
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Affiliation(s)
- Takashi Hozumi
- Department of Functional Anatomy, Graduate School of Medicine, Chiba University, Chiba, Japan; Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan.
| | - Setsu Sawai
- Department of Functional Anatomy, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Tatsuya Jitsuishi
- Department of Functional Anatomy, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Keiko Kitajo
- Department of Functional Anatomy, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Kazuhide Inage
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Yawara Eguchi
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Yasuhiro Shiga
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Miyako Narita
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan; Department of Environmental Medicine, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Sumihisa Orita
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan; Center for Medical Engineering, Chiba University, Chiba, Japan
| | - Seiji Ohtori
- Department of Orthopaedic Surgery, Graduate School of Medicine, Chiba University, Chiba, Japan
| | - Atsushi Yamaguchi
- Department of Functional Anatomy, Graduate School of Medicine, Chiba University, Chiba, Japan.
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Niu SP, Zhang YJ, Han N, Yin XF, Zhang DY, Kou YH. Identification of four differentially expressed genes associated with acute and chronic spinal cord injury based on bioinformatics data. Neural Regen Res 2021; 16:865-870. [PMID: 33229721 PMCID: PMC8178775 DOI: 10.4103/1673-5374.297087] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023] Open
Abstract
Complex pathological changes occur during the development of spinal cord injury (SCI), and determining the underlying molecular events that occur during SCI is necessary for the development of promising molecular targets and therapeutic strategies. This study was designed to explore differentially expressed genes (DEGs) associated with the acute and chronic stages of SCI using bioinformatics analysis. Gene expression profiles (GSE45006, GSE93249, and GSE45550) were downloaded from the Gene Expression Omnibus database. SCI-associated DEGs from rat samples were identified, and Gene Ontology and the Kyoto Encyclopedia of Genes and Genomes pathway enrichment analyses were performed. In addition, a protein-protein interaction network was constructed. Approximately 66 DEGs were identified in GSE45550 between 3–14 days after SCI, whereas 2418 DEGs were identified in GSE45006 1–56 days after SCI. Moreover, 1263, 195, and 75 overlapping DEGs were identified between these two expression profiles, 3, 7/8, and 14 days after SCI, respectively. Additionally, 16 overlapping DEGs were obtained in GSE45006 1–14 days after SCI, including Pank1, Hn1, Tmem150c, Rgd1309676, Lpl, Mdh1, Nnt, Loc100912219, Large1, Baiap2, Slc24a2, Fundc2, Mrps14, Slc16a7, Obfc1, and Alpk3. Importantly, 3882 overlapping DEGs were identified in GSE93249 1–6 months after SCI, including 3316 protein-coding genes and 567 long non-coding RNA genes. A comparative analysis between GSE93249 and GSE45006 resulted in the enrichment of 1135 overlapping DEGs. The significant functions of these 1135 genes were correlated with the response to the immune effector process, the innate immune response, and cytokine production. Moreover, the biological processes and KEGG pathways of the overlapping DEGs were significantly enriched in immune system-related pathways, osteoclast differentiation, the nuclear factor-κB signaling pathway, and the chemokine signaling pathway. Finally, an analysis of the overlapping DEGs associated with both acute and chronic SCI, assessed using the expression profiles GSE93249 and GSE45006, identified four overlapping DEGs: Slc16a7, Alpk3, Lpl and Nnt. These findings may be useful for revealing the biological processes associated with SCI and the development of targeted intervention strategies.
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Affiliation(s)
- Su-Ping Niu
- Key Laboratory of Trauma and Neural Regeneration (Peking University), Ministry of Education; Office of Academic Research, Peking University People's Hospital, Beijing, China
| | - Ya-Jun Zhang
- Key Laboratory of Trauma and Neural Regeneration (Peking University), Ministry of Education; Trauma Medicine Center, Peking University People's Hospital, Beijing, China
| | - Na Han
- Key Laboratory of Trauma and Neural Regeneration (Peking University), Ministry of Education; Office of Academic Research, Peking University People's Hospital, Beijing, China
| | - Xiao-Feng Yin
- Key Laboratory of Trauma and Neural Regeneration (Peking University), Ministry of Education; Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, China
| | - Dian-Ying Zhang
- Key Laboratory of Trauma and Neural Regeneration (Peking University), Ministry of Education; Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, China
| | - Yu-Hui Kou
- Key Laboratory of Trauma and Neural Regeneration (Peking University), Ministry of Education; Department of Trauma and Orthopedics, Peking University People's Hospital, Beijing, China
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23
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Wu S, Yang S, Bloe CB, Zhuang R, Huang J, Zhang W. Identification of Key Genes and Pathways in Mouse Spinal Cord Involved in ddC-Induced Neuropathic Pain by Transcriptome Sequencing. J Mol Neurosci 2020; 71:651-661. [PMID: 32812184 DOI: 10.1007/s12031-020-01686-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2020] [Accepted: 08/11/2020] [Indexed: 01/12/2023]
Abstract
Highly active antiretroviral therapy (HAART) works effectively in inhibiting HIV replication in patients. However, the use of nucleoside reverse transcriptase inhibitors (NRTIs) often causes side effects of neuropathic pain, and its mechanism remains to be elucidated. Therefore, we aim to explore the mechanism of NRTIs-induced neuropathic pain at the transcriptome level. C57BL/6 J mice were given intraperitoneal injection of zalcitabine (ddC) or saline (control) for 2 weeks, during which the mechanical pain threshold of the mice was detected by von Frey test. Then the L3~L5 spinal segments of the mice were isolated and subsequently used for RNA sequencing (RNA-seq) on the last day of treatment. The mechanical pain threshold of mice given ddC decreased significantly. Compared with the control group, ddC caused significant changes in the expression of 135 genes, of which 66 upregulated and 69 downregulated. Enrichment analysis showed that the functions of these genes are mainly enriched in regulation of transcription, multicellular organism development, and cell differentiation, and the pathway is mainly enriched in the cGMP-PKG signaling pathway and AMPK signaling pathway. Furthermore, key genes such as Gabrd, Kcnd3, Npcd, Insr, Lypd6, Scd2, and Mef2d were also identified. These may serve as drug targets for the prevention or treatment of NRTI-induced neuropathic pain.
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Affiliation(s)
- Shengjun Wu
- Clinical Laboratory of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Su Yang
- Clinical Laboratory of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, Hangzhou, 310016, China
| | - Chris Bloe Bloe
- College of Life Science and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Renjie Zhuang
- The Affiliated Hospital of Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Jian Huang
- College of Life Science and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China
| | - Wenping Zhang
- College of Life Science and Medicine, Zhejiang Sci-Tech University, Hangzhou, 310018, China.
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Liu Z, Yang Y, Yang Z, Xia S, Lin D, Xiao B, Xiu Y. Novel circRNA_0071196/miRNA‑19b‑3p/CIT axis is associated with proliferation and migration of bladder cancer. Int J Oncol 2020; 57:767-779. [PMID: 32705161 PMCID: PMC7384843 DOI: 10.3892/ijo.2020.5093] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Accepted: 06/19/2020] [Indexed: 12/14/2022] Open
Abstract
Circular RNAs (circRNAs) are non-coding RNAs that are connected at the 3′ and 5′ ends by an exon or intron. Studies increasingly show that circRNAs play an important role in tumorigenesis by acting as a 'sponge' for microRNAs (miRNAs), which abrogates the latter's effect on their target mRNAs. To identify a possible circRNA/miRNA/mRNA network in bladder cancer (BCa), we analyzed the circRNA and mRNA expression profiles of BCa and adjacent normal bladder tissues. A total of 127 circRNAs and 1,612 mRNAs were differentially expressed in the tumor tissues, and were primarily associated with cancer-related pathways. A competing endogenous RNAs (ceRNA) network was then constructed which predicted a regulatory axis of circRNA_0071196, miRNA-19b-3p and its target gene citron Rho-interacting serine/threonine kinase (CIT). Luciferase reporter assay validated the relationship between circRNA_0071196 and miRNA-19b-3p and of the latter with CIT. Furthermore, CIT was overexpressed in the BCa tissues, and was found to be correlated with metastasis and tumor histological grade. Knockdown of CIT in the human bladder cancer cell line 5367 significantly inhibited the proliferation, migration and colony formation capacity of the cells, and also upregulated the mediators of the p53 and RhoA-ROCK signaling cascades that regulate cell cycle and migration. Taken together, our findings indicate that circRNA-0071196 upregulates CIT levels in BCa by sponging off miRNA-19b-3p, and the circRNA_0071196/miRNA-19b-3p/CIT axis is a potential therapeutic target in BCa.
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Affiliation(s)
- Zan Liu
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Yang Yang
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Zhe Yang
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Shunyao Xia
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Dasen Lin
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Bang Xiao
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
| | - Youcheng Xiu
- Department of Urology, The First Affiliated Hospital of Harbin Medical University, Harbin, Heilongjiang 150001, P.R. China
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25
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Chen R, Yin C, Hu Q, Liu B, Tai Y, Zheng X, Li Y, Fang J, Liu B. Expression profiling of spinal cord dorsal horn in a rat model of complex regional pain syndrome type-I uncovers potential mechanisms mediating pain and neuroinflammation responses. J Neuroinflammation 2020; 17:162. [PMID: 32446302 PMCID: PMC7245895 DOI: 10.1186/s12974-020-01834-0] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Accepted: 05/03/2020] [Indexed: 12/23/2022] Open
Abstract
BACKGROUND Complex regional pain syndrome type-I (CRPS-I) is a progressive and devastating pain condition. The mechanisms of CRPS-I still remain poorly understood. We aim to explore expression profiles of genes relevant to pain and neuroinflammation mechanisms involved in CRPS-I. METHODS The rat chronic post-ischemic pain (CPIP) model that mimics human CRPS-I was established. RNA-sequencing (RNA-Seq), qPCR, Western blot, immunostaining, and pharmacological studies were used for profiling gene changes in ipsilateral spinal cord dorsal horn (SCDH) of CPIP model rat and further validation. RESULTS CPIP rats developed persistent mechanical allodynia in bilateral hind paws, accompanied with obvious glial activation in SCDH. RNA-Seq identified a total of 435 differentially expressed genes (DEGs) in ipsilateral SCDH of CPIP rats. qPCR confirmed the expression of several representative genes. Functional analysis of DEGs identified that the most significantly enriched biological processes of upregulated genes include inflammatory and innate immune response. We further identified NLRP3 inflammasome expression to be significantly upregulated in SCDH of CPIP rats. Pharmacological blocking NLRP3 inflammasome reduced IL-1β overproduction, glial activation in SCDH as well as mechanical allodynia of CPIP rats. CONCLUSION Our study revealed that immune and inflammatory responses are predominant biological events in SCDH of CPIP rats. We further identified NLRP3 inflammasome in SCDH as a key contributor to the pain and inflammation responses in CPIP rats. Thus, our study provided putative novel targets that may help to develop effective therapeutics against CRPS-I.
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Affiliation(s)
- Ruixiang Chen
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, 548 Binwen Road, Hangzhou, 310053 China
| | - Chengyu Yin
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, 548 Binwen Road, Hangzhou, 310053 China
| | - Qimiao Hu
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, 548 Binwen Road, Hangzhou, 310053 China
| | - Boyu Liu
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, 548 Binwen Road, Hangzhou, 310053 China
| | - Yan Tai
- Academy of Chinese Medical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053 China
| | - Xiaoli Zheng
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, 548 Binwen Road, Hangzhou, 310053 China
| | - Yuanyuan Li
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, 548 Binwen Road, Hangzhou, 310053 China
| | - Jianqiao Fang
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, 548 Binwen Road, Hangzhou, 310053 China
| | - Boyi Liu
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, 548 Binwen Road, Hangzhou, 310053 China
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26
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Hou X, Weng Y, Guo Q, Ding Z, Wang J, Dai J, Wei A, Song Z. Transcriptomic analysis of long noncoding RNAs and mRNAs expression profiles in the spinal cord of bone cancer pain rats. Mol Brain 2020; 13:47. [PMID: 32209134 PMCID: PMC7092675 DOI: 10.1186/s13041-020-00589-2] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Accepted: 03/13/2020] [Indexed: 12/14/2022] Open
Abstract
Bone cancer pain (BCP) is one of the most common types of chronic cancer pain and its pathogenesis has not been fully understood. Long non-coding RNAs (lncRNAs) are new promising targets in the field of pain research, however, their involvements in BCP have not been reported. In the present study, we established the BCP model by implantation of Walker 256 carcinoma cells into rats' tibial medullary cavity and performed transcriptome sequencing of the ipsilateral lumbar spinal cord to explore changes in expression profiles of lncRNA and mRNA. We identified 1220 differently expressed mRNAs (DEmRNAs) (1171 up-regulated and 49 down-regulated) and 323 differently expressed lncRNAs (DElncRNAs) (246 up-regulated and 77 down-regulated) in BCP model, among which 10 DEmRNAs (5 up-regulated and 5 down-regulated) and 10 DElncRNAs (5 up-regulated and 5 down-regulated) were validated the expression by RT-qPCR. Then, we performed Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis on the expression of DEmRNAs and DElncRNAs, showing that they were mainly enriched in inflammatory and immunologic processes/pathways. Finally, we constructed a co-expression network and a ceRNA network of DEmRNAs and DElncRNAs to exhibit a potential regulatory mechanism of DElncRNAs, directly regulating protein coding gene expression in cis or in trans and indirectly regulating protein coding gene expression by sponging miRNA. In conclusion, our study provided a landscape of dysregulated lncRNA and mRNA in spinal cord of bone cancer pain and detected novel potential targets for treatment in the future.
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Affiliation(s)
- Xinran Hou
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China
| | - Yingqi Weng
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China
| | - Qulian Guo
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China
| | - Zhuofeng Ding
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China
| | - Jian Wang
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China
| | - Jiajia Dai
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China
| | - Anqi Wei
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China
| | - Zongbin Song
- Department of Anesthesiology, Xiangya Hospital, Central South University, Changsha, Hunan, 410008, People's Republic of China.
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Liang Y, Zhang Z, Juan Z, Zhang R, Zhang C. The high-affinity IgG receptor FcγRI modulates peripheral nerve injury-induced neuropathic pain in rats. Mol Brain 2019; 12:83. [PMID: 31640731 PMCID: PMC6805563 DOI: 10.1186/s13041-019-0499-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2019] [Accepted: 09/11/2019] [Indexed: 11/24/2022] Open
Abstract
The Fc gamma receptor I (FcγRI; CD64) is the high-affinity receptor of the immunoglobulin G protein (IgG). It is usually expressed in immune cells and has recently been identified to distribute in the nervous system and play critical roles in various neurological disorders. Presently, the impacts of FcγRI in neuropathic pain was largely unknown. Here, we aimed to investigate the impacts of FcγRI in neuropathic pain through pain-related neurobehavioral studies and underlying mechanisms by biochemical methods in animal and cell models. Specifically, we first utilized the chronic constriction injury (CCI) rat model that displayed neuropathic pain related symptoms and signs, including thermal hyperalgesia and mechanical allodynia. These neurobehavioral defects were significantly attenuated by the anti-FcγRI antibody, which was associated with reduced levels of neuropeptide substance P, C3, and TNF-α. Furthermore, we validated our animal findings using the embryonically neural crest-originated PC12 cell model. We found that stimulation of the IgG immune complex led to increased levels of FcγRI and inflammatory mediators, which were attenuated by the anti-FcγRI antibody in these cells. Collectively, our results from animal and cell-based studies suggest that FcγRI is a critical player for peripheral nerve injury-induced neuropathic pain by mediating pain-related immunological events, which therefore may provide a new therapeutic target for protection against chronic pain.
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Affiliation(s)
- Yingxia Liang
- Department of Anesthesiology, Weifang Medical University, Weifang, 261053, Shandong, China.,Genetics and Aging Research Unit, McCance Center for Brain Health, Department of Neurology, MassGeneral Institute for Neurodegenerative Diseases (MIND), Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, 02129, USA
| | - Zhiyu Zhang
- Department of Trauma Orthopedics, Shouguang People's Hospital, Weifang, 262700, Shandong, China
| | - Zhaodong Juan
- Department of Anesthesiology, Weifang Medical University, Weifang, 261053, Shandong, China
| | - Rui Zhang
- Department of Anesthesiology, Weifang Medical University, Weifang, 261053, Shandong, China
| | - Can Zhang
- Genetics and Aging Research Unit, McCance Center for Brain Health, Department of Neurology, MassGeneral Institute for Neurodegenerative Diseases (MIND), Massachusetts General Hospital and Harvard Medical School, Charlestown, MA, 02129, USA.
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28
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Yin C, Hu Q, Liu B, Tai Y, Zheng X, Li Y, Xiang X, Wang P, Liu B. Transcriptome profiling of dorsal root ganglia in a rat model of complex regional pain syndrome type-I reveals potential mechanisms involved in pain. J Pain Res 2019; 12:1201-1216. [PMID: 31114302 PMCID: PMC6489655 DOI: 10.2147/jpr.s188758] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Accepted: 02/27/2019] [Indexed: 12/27/2022] Open
Abstract
Purpose: Complex regional pain syndrome type-I (CRPS-I) is a progressive and devastating pain condition, which remains clinically challenging. The mechanisms of CRPS-I still remain largely unknown. We aim to identify transcriptome profiles of genes relevant to pain mechanisms and major pathways involved in CRPS-I. Methods: A rat model of chronic post-ischemia pain (CPIP) was established to mimic CRPS-I. RNA-sequencing (RNA-Seq) was used to profile transcriptome of L4-6 dorsal root ganglia (DRGs) of a rat model of CRPS-I. Results: CPIP model rats developed persistent mechanical/thermal hyperalgesia in ipsilateral hind paw. RNA-Seq identified a total of 295 differentially expressed genes (DEGs), including 195 up- and 100 downregulated, in ipsilateral DRGs of CPIP rats compared with sham rats. The expression of several representative genes was confirmed by qPCR. Functional analysis of DEGs revealed that the most significant enriched biological processes of upregulated genes include response to lipopolysaccharide, inflammatory response and cytokine activity, which are all important mechanisms mediating pain. We further screened DEGs implicated in pain progress, genes enriched in small- to medium-sized sensory neurons and enriched in TRPV1-lineage nociceptors. By comparing our dataset with other published datasets of neuropathic or inflammatory pain models, we identified a core set of genes and pathways that extensively participate in CPIP and other neuropathic pain states. Conclusion: Our study identified transcriptome gene changes in DRGs of an animal model of CRPS-I and could provide insights into identifying promising genes or pathways that can be potentially targeted to ameliorate CRPS-I.
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Affiliation(s)
- Chengyu Yin
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, People's Republic of China.,College of Life Science, Zhejiang Chinese Medical University, Hangzhou, People's Republic of China
| | - Qimiao Hu
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, People's Republic of China
| | - Boyu Liu
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, People's Republic of China
| | - Yan Tai
- Academy of Chinese Medicine Sciences, Zhejiang Chinese Medical University, Hangzhou, People's Republic of China
| | - Xiaoli Zheng
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, People's Republic of China
| | - Yuanyuan Li
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, People's Republic of China
| | - Xuaner Xiang
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, People's Republic of China
| | - Ping Wang
- Department of Pathology, School of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, People's Republic of China
| | - Boyi Liu
- Department of Neurobiology and Acupuncture Research, The Third Clinical Medical College, Zhejiang Chinese Medical University, Key Laboratory of Acupuncture and Neurology of Zhejiang Province, Hangzhou, People's Republic of China
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