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Xu M, Wang Z, Xu G, Zhu M, Zhang D, Yan Y. Exploring gene signatures and regulatory networks in a rat model of sciatica: implications and validation in neuropathic pain. Front Mol Neurosci 2024; 16:1261217. [PMID: 38379852 PMCID: PMC10877633 DOI: 10.3389/fnmol.2023.1261217] [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: 07/19/2023] [Accepted: 12/22/2023] [Indexed: 02/22/2024] Open
Abstract
Background Sciatica (neuropathic pain [NP]) is a common disease characterized by pain from radiation along the sciatic nerve. The aim of this study was to study the genes associated with chronic systolic injury of sciatic nerve (SCN-CCI) in rats by RNA-Seq technique, and to explore their potential as therapeutic targets. Methods Sciatic nerve rat model was obtained by ligation of sciatic nerve and divided into two groups: SCN-CCI group and Sham group. Behavioral assessments were performed to evaluate pain sensitivity, following which their spinal cord dorsal horn were resected and RNA sequencing was conducted to identify differentially expressed genes (DEGs). Bioinformatics and functional enrichment analysis was performed to identify promising DEGs and their related biological processes and pathways associated with SCN-CCI. PPI network analysis and hub gene identification were conducted. QRT-PCR, western blot, ELISA, and immunofluorescence staining were performed on rat models to validate the expression of these hub genes and investigate related proteins and inflammatory markers. Results The SCN-CCI rat model was successfully obtained, exhibiting increased pain sensitivity compared to the Sham group, as indicated by decreased mechanical allodynia thresholds, thermal latencies, and increased paw withdrawals. RNA-Seq analysis identified 117 DEGs in the SCN-CCI rat model, involved in various biological processes and pathways related to sciatica. PPI network analysis revealed hub genes, including Ly6g6e, which exhibited significant differential expression. QRT-PCR and Western blot analysis confirmed the expression patterns of these hub genes. Pain behavior assessment demonstrated reduced pain thresholds and increased paw flinching responses in the SCN-CCI group. Furthermore, the SCN-CCI group showed upregulated expression of Ly6g6e, increased protein levels of Ly6g6e, CGRP, and NGF, as well as elevated levels of IL-1β, MCP-1, and IL-6, and microglial cell activation in the spinal dorsal horn. ELISA results confirmed the increased levels of IL-1β, MCP-1, and IL-6 in the spinal dorsal horn. Conclusion These comprehensive findings provide valuable insights into the SCN-CCI rat model, DEGs associated with sciatica, hub genes (Ly6g6e as promising targets), pain behavior changes and molecular alterations.
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Affiliation(s)
| | | | | | | | | | - Yi Yan
- Department of Pain Medicine, The First Affiliated Hospital, Jiangxi Medical College, Nanchang University, Nanchang, Jiangxi, China
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2
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Estivill-Torrús G, Martínez-Padilla AB, Sánchez-Salido L, Evercooren ABV, García-Díaz B. The dorsal root ganglion as a target for neurorestoration in neuropathic pain. Neural Regen Res 2024; 19:296-301. [PMID: 37488881 PMCID: PMC10503598 DOI: 10.4103/1673-5374.374655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 04/22/2023] [Accepted: 05/19/2023] [Indexed: 07/26/2023] Open
Abstract
Neuropathic pain is a severe and chronic condition widely found in the general population. The reason for this is the extensive variety of damage or diseases that can spark this unpleasant constant feeling in patients. During the processing of pain, the dorsal root ganglia constitute an important region where dorsal root ganglion neurons play a crucial role in the transmission and propagation of sensory electrical stimulation. Furthermore, the dorsal root ganglia have recently exhibited a regenerative capacity that should not be neglected in the understanding of the development and resolution of neuropathic pain and in the elucidation of innovative therapies. Here, we will review the complex interplay between cells (satellite glial cells and inflammatory cells) and factors (cytokines, neurotrophic factors and genetic factors) that takes place within the dorsal root ganglia and accounts for the generation of the aberrant excitation of primary sensory neurons occurring in neuropathic pain. More importantly, we will summarize an updated view of the current pharmacologic and nonpharmacologic therapies targeting the dorsal root ganglia for the treatment of neuropathic pain.
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Affiliation(s)
- Guillermo Estivill-Torrús
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA Plataforma BIONAND), Málaga, Spain
- Unidad Clínica de Neurociencias, Hospital Regional Universitario de Málaga, Málaga, Spain
| | | | - Lourdes Sánchez-Salido
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA Plataforma BIONAND), Málaga, Spain
- Unidad Clínica de Neurociencias, Hospital Regional Universitario de Málaga, Málaga, Spain
| | - Anne Baron-Van Evercooren
- Sorbonne Université, Institut du Cerveau - Paris Brain Institute-ICM, INSERM, CNRS, AP-HP, Hôpital Pitié-Salpêtrière, Paris, France
| | - Beatriz García-Díaz
- Instituto de Investigación Biomédica de Málaga y Plataforma en Nanomedicina (IBIMA Plataforma BIONAND), Málaga, Spain
- Unidad Clínica de Neurociencias, Hospital Regional Universitario de Málaga, Málaga, Spain
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Vojdani A, Koksoy S, Vojdani E, Engelman M, Benzvi C, Lerner A. Natural Killer Cells and Cytotoxic T Cells: Complementary Partners against Microorganisms and Cancer. Microorganisms 2024; 12:230. [PMID: 38276215 PMCID: PMC10818828 DOI: 10.3390/microorganisms12010230] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2024] [Revised: 01/17/2024] [Accepted: 01/18/2024] [Indexed: 01/27/2024] Open
Abstract
Natural killer (NK) cells and cytotoxic T (CD8+) cells are two of the most important types of immune cells in our body, protecting it from deadly invaders. While the NK cell is part of the innate immune system, the CD8+ cell is one of the major components of adaptive immunity. Still, these two very different types of cells share the most important function of destroying pathogen-infected and tumorous cells by releasing cytotoxic granules that promote proteolytic cleavage of harmful cells, leading to apoptosis. In this review, we look not only at NK and CD8+ T cells but also pay particular attention to their different subpopulations, the immune defenders that include the CD56+CD16dim, CD56dimCD16+, CD57+, and CD57+CD16+ NK cells, the NKT, CD57+CD8+, and KIR+CD8+ T cells, and ILCs. We examine all these cells in relation to their role in the protection of the body against different microorganisms and cancer, with an emphasis on their mechanisms and their clinical importance. Overall, close collaboration between NK cells and CD8+ T cells may play an important role in immune function and disease pathogenesis. The knowledge of how these immune cells interact in defending the body against pathogens and cancers may help us find ways to optimize their defensive and healing capabilities with methods that can be clinically applied.
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Affiliation(s)
- Aristo Vojdani
- Immunosciences Laboratory, Inc., Los Angeles, CA 90035, USA
| | - Sadi Koksoy
- Cyrex Laboratories, LLC, Phoenix, AZ 85034, USA; (S.K.); (M.E.)
| | | | - Mark Engelman
- Cyrex Laboratories, LLC, Phoenix, AZ 85034, USA; (S.K.); (M.E.)
| | - Carina Benzvi
- Chaim Sheba Medical Center, The Zabludowicz Research Center for Autoimmune Diseases, Ramat Gan 52621, Israel; (C.B.); (A.L.)
| | - Aaron Lerner
- Chaim Sheba Medical Center, The Zabludowicz Research Center for Autoimmune Diseases, Ramat Gan 52621, Israel; (C.B.); (A.L.)
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4
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Soeda M, Ohka S, Nishizawa D, Iseki M, Yamaguchi K, Arita H, Hanaoka K, Kato J, Ogawa S, Hiranuma A, Hasegawa J, Nakayama K, Ebata Y, Hayashida M, Ichinohe T, Fukuda KI, Ikeda K. Single-Nucleotide Polymorphisms of the PAR2 and IL-17A Genes Are Significantly Associated with Chronic Pain. Int J Mol Sci 2023; 24:17627. [PMID: 38139455 PMCID: PMC10744199 DOI: 10.3390/ijms242417627] [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: 10/24/2023] [Revised: 12/10/2023] [Accepted: 12/14/2023] [Indexed: 12/24/2023] Open
Abstract
Patients with chronic pain are affected psychologically and socially. There are also individual differences in treatment efficacy. Insufficient research has been conducted on genetic polymorphisms that are related to individual differences in the susceptibility to chronic pain. Autoimmune disorders can lead to inflammation and chronic pain; therefore, we focused on the autoimmune-related protease-activated receptor 2 (PAR2/F2RL1) and interleukin 17A (IL-17A/IL17A) genes. PAR2 and IL-17A are associated with autoimmune diseases that lead to chronic pain, and PAR2 regulates T-helper (Th) cell activation and differentiation. We hypothesized that the PAR2 and IL-17A genes are associated with chronic pain. The present study used a case-control design to statistically examine associations between genetic polymorphisms and the vulnerability to chronic pain. The rs2243057 polymorphism of the PAR2 gene and rs3819025 polymorphism of the IL-17A gene were previously reported to be associated with pain- or autoimmune-related phenotypes. Thus, these polymorphisms were investigated in the present study. We found that both rs2243057 and rs3819025 were significantly associated with a susceptibility to chronic pain. The present findings revealed autoimmune-related genetic factors that are involved in individual differences in chronic pain, further aiding understanding of the pathomechanism that underlies chronic pain and possibly contributing to future personalized medicine.
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Affiliation(s)
- Moe Soeda
- Addictive Substance Project, Tokyo Metropolitan Institute of Medical Science, Tokyo 156-8506, Japan; (M.S.); (S.O.); (D.N.)
- Department of Oral Health and Clinical Science, Tokyo Dental College, Tokyo 101-0061, Japan
| | - Seii Ohka
- Addictive Substance Project, Tokyo Metropolitan Institute of Medical Science, Tokyo 156-8506, Japan; (M.S.); (S.O.); (D.N.)
| | - Daisuke Nishizawa
- Addictive Substance Project, Tokyo Metropolitan Institute of Medical Science, Tokyo 156-8506, Japan; (M.S.); (S.O.); (D.N.)
| | - Masako Iseki
- Department of Anesthesiology & Pain Medicine, Juntendo University School of Medicine, Tokyo 113-8431, Japan; (M.I.)
| | - Keisuke Yamaguchi
- Department of Anesthesiology & Pain Medicine, Juntendo University School of Medicine, Tokyo 113-8431, Japan; (M.I.)
| | - Hideko Arita
- Department of Anesthesiology, Pain Relief Center, JR Tokyo General Hospital, Tokyo 151-8528, Japan; (H.A.); (K.H.)
| | - Kazuo Hanaoka
- Department of Anesthesiology, Pain Relief Center, JR Tokyo General Hospital, Tokyo 151-8528, Japan; (H.A.); (K.H.)
| | - Jitsu Kato
- Department of Anesthesiology, Nihon University School of Medicine, Tokyo 173-8610, Japan
| | - Setsuro Ogawa
- University Research Center, Nihon University, Tokyo 173-8610, Japan
| | - Ayako Hiranuma
- Addictive Substance Project, Tokyo Metropolitan Institute of Medical Science, Tokyo 156-8506, Japan; (M.S.); (S.O.); (D.N.)
- Department of Surgery, Toho University Sakura Medical Center, Chiba 285-8741, Japan
| | - Junko Hasegawa
- Addictive Substance Project, Tokyo Metropolitan Institute of Medical Science, Tokyo 156-8506, Japan; (M.S.); (S.O.); (D.N.)
| | - Kyoko Nakayama
- Addictive Substance Project, Tokyo Metropolitan Institute of Medical Science, Tokyo 156-8506, Japan; (M.S.); (S.O.); (D.N.)
| | - Yuko Ebata
- Addictive Substance Project, Tokyo Metropolitan Institute of Medical Science, Tokyo 156-8506, Japan; (M.S.); (S.O.); (D.N.)
| | - Masakazu Hayashida
- Addictive Substance Project, Tokyo Metropolitan Institute of Medical Science, Tokyo 156-8506, Japan; (M.S.); (S.O.); (D.N.)
- Department of Anesthesiology & Pain Medicine, Juntendo University School of Medicine, Tokyo 113-8431, Japan; (M.I.)
- Department of Anesthesiology, Saitama Medical University International Medical Center, Saitama 350-1298, Japan
| | - Tatsuya Ichinohe
- Department of Dental Anesthesiology, Tokyo Dental College, Tokyo 101-0061, Japan;
| | - Ken-ichi Fukuda
- Department of Oral Health and Clinical Science, Tokyo Dental College, Tokyo 101-0061, Japan
| | - Kazutaka Ikeda
- Addictive Substance Project, Tokyo Metropolitan Institute of Medical Science, Tokyo 156-8506, Japan; (M.S.); (S.O.); (D.N.)
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Gilabert D, Duveau A, Carracedo S, Linck N, Langla A, Muramatsu R, Koch-Nolte F, Rassendren F, Grutter T, Fossat P, Boué-Grabot E, Ulmann L. Microglial P2X4 receptors are essential for spinal neurons hyperexcitability and tactile allodynia in male and female neuropathic mice. iScience 2023; 26:108110. [PMID: 37860691 PMCID: PMC10583052 DOI: 10.1016/j.isci.2023.108110] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 08/25/2023] [Accepted: 09/28/2023] [Indexed: 10/21/2023] Open
Abstract
In neuropathic pain, recent evidence has highlighted a sex-dependent role of the P2X4 receptor in spinal microglia in the development of tactile allodynia following nerve injury. Here, using internalization-defective P2X4mCherryIN knockin mice (P2X4KI), we demonstrate that increased cell surface expression of P2X4 induces hypersensitivity to mechanical stimulations and hyperexcitability in spinal cord neurons of both male and female naive mice. During neuropathy, both wild-type (WT) and P2X4KI mice of both sexes develop tactile allodynia accompanied by spinal neuron hyperexcitability. These responses are selectively associated with P2X4, as they are absent in global P2X4KO or myeloid-specific P2X4KO mice. We show that P2X4 is de novo expressed in reactive microglia in neuropathic WT and P2X4KI mice of both sexes and that tactile allodynia is relieved by pharmacological blockade of P2X4 or TrkB. These results show that the upregulation of P2X4 in microglia is crucial for neuropathic pain, regardless of sex.
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Affiliation(s)
- Damien Gilabert
- IGF, University Montpellier, CNRS, INSERM, F-34094 Montpellier, France
- LabEx Ion Channel Science and Therapeutics, Montpellier, France
| | - Alexia Duveau
- University Bordeaux, CNRS, IMN, UMR 5293, F-33000 Bordeaux, France
| | - Sara Carracedo
- University Bordeaux, CNRS, IMN, UMR 5293, F-33000 Bordeaux, France
| | - Nathalie Linck
- IGF, University Montpellier, CNRS, INSERM, F-34094 Montpellier, France
- LabEx Ion Channel Science and Therapeutics, Montpellier, France
| | - Adeline Langla
- University Bordeaux, CNRS, IMN, UMR 5293, F-33000 Bordeaux, France
| | - Rieko Muramatsu
- Department of Molecular Pharmacology, National Institute of Neuroscience, National Center of Neurology and Psychiatry, Tokyo 187-8502, Japan
| | - Friedrich Koch-Nolte
- Institute of Immunology, University Medical Center Hamburg-Eppendorf, D-20246 Hamburg, Germany
| | - François Rassendren
- IGF, University Montpellier, CNRS, INSERM, F-34094 Montpellier, France
- LabEx Ion Channel Science and Therapeutics, Montpellier, France
| | - Thomas Grutter
- University of Strasbourg, CNRS, CAMB UMR 7199, F-67000 Strasbourg, France
| | - Pascal Fossat
- University Bordeaux, CNRS, IMN, UMR 5293, F-33000 Bordeaux, France
| | - Eric Boué-Grabot
- University Bordeaux, CNRS, IMN, UMR 5293, F-33000 Bordeaux, France
| | - Lauriane Ulmann
- IGF, University Montpellier, CNRS, INSERM, F-34094 Montpellier, France
- LabEx Ion Channel Science and Therapeutics, Montpellier, France
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6
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Olson KE, Mosley RL, Gendelman HE. The potential for treg-enhancing therapies in nervous system pathologies. Clin Exp Immunol 2023; 211:108-121. [PMID: 36041453 PMCID: PMC10019130 DOI: 10.1093/cei/uxac084] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 07/28/2022] [Accepted: 08/30/2022] [Indexed: 11/13/2022] Open
Abstract
While inflammation may not be the cause of disease, it is well known that it contributes to disease pathogenesis across a multitude of peripheral and central nervous system disorders. Chronic and overactive inflammation due to an effector T-cell-mediated aberrant immune response ultimately leads to tissue damage and neuronal cell death. To counteract peripheral and neuroinflammatory responses, research is being focused on regulatory T cell enhancement as a therapeutic target. Regulatory T cells are an immunosuppressive subpopulation of CD4+ T helper cells essential for maintaining immune homeostasis. The cells play pivotal roles in suppressing immune responses to maintain immune tolerance. In so doing, they control T cell proliferation and pro-inflammatory cytokine production curtailing autoimmunity and inflammation. For nervous system pathologies, Treg are known to affect the onset and tempo of neural injuries. To this end, we review recent findings supporting Treg's role in disease, as well as serving as a therapeutic agent in multiple sclerosis, myasthenia gravis, Guillain-Barre syndrome, Parkinson's and Alzheimer's diseases, and amyotrophic lateral sclerosis. An ever-broader role for Treg in the control of neurologic disease has been shown for traumatic brain injury, stroke, neurotrophic pain, epilepsy, and psychiatric disorders. To such ends, this review serves to examine the role played by Tregs in nervous system diseases with a focus on harnessing their functional therapeutic role(s).
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Affiliation(s)
- Katherine E Olson
- Department of Pharmacology and Experimental Neuroscience, Center for Neurodegenerative Disorders, University of Nebraska Medical Center, Omaha, Nebraska 68198, USA
| | - R L Mosley
- Department of Pharmacology and Experimental Neuroscience, Center for Neurodegenerative Disorders, University of Nebraska Medical Center, Omaha, Nebraska 68198, USA
| | - Howard E Gendelman
- Department of Pharmacology and Experimental Neuroscience, Center for Neurodegenerative Disorders, University of Nebraska Medical Center, Omaha, Nebraska 68198, USA
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Wan Mohtar WHM, Wan-Mohtar WAAQI, Zahuri AA, Ibrahim MF, Show PL, Ilham Z, Jamaludin AA, Abdul Patah MF, Ahmad Usuldin SR, Rowan N. Role of ascomycete and basidiomycete fungi in meeting established and emerging sustainability opportunities: a review. Bioengineered 2022; 13:14903-14935. [PMID: 37105672 DOI: 10.1080/21655979.2023.2184785] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/29/2023] Open
Abstract
Fungal biomass is the future's feedstock. Non-septate Ascomycetes and septate Basidiomycetes, famously known as mushrooms, are sources of fungal biomass. Fungal biomass, which on averagely comprises about 34% protein and 45% carbohydrate, can be cultivated in bioreactors to produce affordable, safe, nontoxic, and consistent biomass quality. Fungal-based technologies are seen as attractive, safer alternatives, either substituting or complementing the existing standard technology. Water and wastewater treatment, food and feed, green technology, innovative designs in buildings, enzyme technology, potential health benefits, and wealth production are the key sectors that successfully reported high-efficiency performances of fungal applications. This paper reviews the latest technical know-how, methods, and performance of fungal adaptation in those sectors. Excellent performance was reported indicating high potential for fungi utilization, particularly in the sectors, yet to be utilized and improved on the existing fungal-based applications. The expansion of fungal biomass in the industrial-scale application for the sustainability of earth and human well-being is in line with the United Nations' Sustainable Development Goals.
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Affiliation(s)
- Wan Hanna Melini Wan Mohtar
- Department of Civil Engineering, Faculty of Engineering and Built Environment, Universiti Kebangsaan Malaysia (UKM), 43600 UKM Bangi, Selangor, Malaysia
- Environmental Management Centre, Institute of Climate Change, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia
| | - Wan Abd Al Qadr Imad Wan-Mohtar
- Functional Omics and Bioprocess Development Laboratory, Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur, Malaysia
- Research Institutes and Industry Centres, Bioscience Research Institute, Technological University of the Shannon, MidlandsMidwest, Westmeath, Ireland
| | - Afnan Ahmadi Zahuri
- Functional Omics and Bioprocess Development Laboratory, Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Mohamad Faizal Ibrahim
- Department of Bioprocess Technology, Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Pau-Loke Show
- Department of Chemical and Environmental Engineering, Faculty of Science and Engineering, University of Nottingham Malaysia, Semenyih, Malaysia
| | - Zul Ilham
- Environmental Science and Management Program, Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur, Malaysia
- Department of Biological and Environmental Engineering, College of Agriculture and Life Sciences, Cornell University, Ithaca, NY, USA
| | - Adi Ainurzaman Jamaludin
- Environmental Science and Management Program, Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Muhamad Fazly Abdul Patah
- Department of Chemical Engineering, Faculty of Engineering, Universiti Malaya, Kuala Lumpur, Malaysia
| | - Siti Rokhiyah Ahmad Usuldin
- Functional Omics and Bioprocess Development Laboratory, Institute of Biological Sciences, Faculty of Science, Universiti Malaya, Kuala Lumpur, Malaysia
- Agro-Biotechnology Institute, Malaysia, National Institutes of Biotechnology Malaysia, Serdang, Selangor, Malaysia
| | - Neil Rowan
- Research Institutes and Industry Centres, Bioscience Research Institute, Technological University of the Shannon, MidlandsMidwest, Westmeath, Ireland
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