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Song L, Wang J, Zhang Y, Yan X, He J, Nie J, Zhang F, Han R, Yin H, Li J, Liu H, Huang L, Li Y. Association Between Human Metabolomics and Rheumatoid Arthritis: A Systematic Review and Meta-analysis. Arch Med Res 2024; 55:102907. [PMID: 38029644 DOI: 10.1016/j.arcmed.2023.102907] [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: 04/25/2023] [Revised: 09/23/2023] [Accepted: 10/24/2023] [Indexed: 12/01/2023]
Abstract
OBJECTIVE The underdiagnosis and inadequate treatment of rheumatoid arthritis (RA) can be attributed to the various clinical manifestations presented by patients. To address this concern, we conducted an extensive review and meta-analysis, focusing on RA-related metabolites. METHODS A comprehensive literature search was conducted in PubMed, the Cochrane Library, Web of Science, and Embase to identify relevant studies published up to October 5, 2022. The quality of the included articles was evaluated and, subsequently, a meta-analysis was conducted using Review Manager software to analyze the association between metabolites and RA. RESULTS Forty nine studies met the inclusion criteria for the systematic review, and six of these studies were meta-analyzed to evaluate the association between 28 reproducible metabolites and RA. The results indicated that, compared to controls, the levels of histidine (RoM = 0.83, 95% CI = 0.79-0.88, I2 = 0%), asparagine (RoM = 0.83, 95% CI = 0.75-0.91, I2 = 0%), methionine (RoM = 0.82, 95% CI = 0.69-0.98, I2 = 85%), and glycine (RoM = 0.81, 95% CI = 0.67-0.97, I2 = 68%) were significantly lower in RA patients, while hypoxanthine levels (RoM = 1.14, 95% CI = 1.09-1.19, I2 = 0%) were significantly higher. CONCLUSION This study identified histidine, methionine, asparagine, hypoxanthine, and glycine as significantly correlated with RA, thus offering the potential for the advancement of biomarker discovery and the elucidation of disease mechanisms in RA.
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Affiliation(s)
- Lili Song
- Tianjin University of Traditional Chinese Medicine, No.10, Poyang Lake Road, West zone, Tuanbo New-City, Jinghai-District, Tianjin, China
| | - Jiayi Wang
- Tianjin University of Traditional Chinese Medicine, No.10, Poyang Lake Road, West zone, Tuanbo New-City, Jinghai-District, Tianjin, China
| | - Yue Zhang
- Tianjin University of Traditional Chinese Medicine, No.10, Poyang Lake Road, West zone, Tuanbo New-City, Jinghai-District, Tianjin, China
| | - Xingxu Yan
- Tianjin University of Traditional Chinese Medicine, No.10, Poyang Lake Road, West zone, Tuanbo New-City, Jinghai-District, Tianjin, China
| | - Junjie He
- Tianjin University of Traditional Chinese Medicine, No.10, Poyang Lake Road, West zone, Tuanbo New-City, Jinghai-District, Tianjin, China
| | - Jiaxuan Nie
- Tianjin University of Traditional Chinese Medicine, No.10, Poyang Lake Road, West zone, Tuanbo New-City, Jinghai-District, Tianjin, China
| | - Fangfang Zhang
- Tianjin University of Traditional Chinese Medicine, No.10, Poyang Lake Road, West zone, Tuanbo New-City, Jinghai-District, Tianjin, China
| | - Rui Han
- Tianjin University of Traditional Chinese Medicine, No.10, Poyang Lake Road, West zone, Tuanbo New-City, Jinghai-District, Tianjin, China
| | - Hongqing Yin
- Tianjin University of Traditional Chinese Medicine, No.10, Poyang Lake Road, West zone, Tuanbo New-City, Jinghai-District, Tianjin, China
| | - Jingfang Li
- Tianjin University of Traditional Chinese Medicine, No.10, Poyang Lake Road, West zone, Tuanbo New-City, Jinghai-District, Tianjin, China
| | - Huimin Liu
- Tianjin University of Traditional Chinese Medicine, No.10, Poyang Lake Road, West zone, Tuanbo New-City, Jinghai-District, Tianjin, China
| | - Liping Huang
- Tianjin University of Traditional Chinese Medicine, No.10, Poyang Lake Road, West zone, Tuanbo New-City, Jinghai-District, Tianjin, China
| | - Yubo Li
- Tianjin University of Traditional Chinese Medicine, No.10, Poyang Lake Road, West zone, Tuanbo New-City, Jinghai-District, Tianjin, China.
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Jiang F, Wang S, Han D, Wei J, Wu Y, Liu Z. Glutamic-acid grafted hyaluronic acid inhibits inflammatory factors via fibroblast and skin model tests. Skin Res Technol 2024; 30:e13548. [PMID: 38174788 PMCID: PMC10765356 DOI: 10.1111/srt.13548] [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: 11/17/2023] [Accepted: 12/11/2023] [Indexed: 01/05/2024]
Abstract
BACKGROUND Excessive inflammation may cause tissue damage and disrupt the function of the skin barrier. Hyaluronic acid (HA), an endogenous component, was found to regulate multiple inflammatory factors for skin health. This work aims to further enhance its efficacy by grafting amino acid onto its molecule. METHODS Glutamic acid (Glu) was selected as the ligand to react with low-molecular-weight HA. Fibroblast tests and a 3D skin model were used to investigate the anti-inflammation efficacy of HA-Glu. RESULTS For IL-1α, IL-6 and TNF-α, the grafted compound presents stronger inhibition ability versus native HA. Moreover, HA-Glu could promote the repair of damaged skin by improving the compactness of the stratum corneum and increasing the thickness of the living cell layer. CONCLUSION The application of HA-Glu compound in skin care formulas would be effective to alleviate inflammation-induced skin symptoms and skin aging.
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Affiliation(s)
| | - Song Wang
- Department of Dermatologythe Third People's Hospital of HangzhouHangzhouZhejiangChina
| | - Dong Han
- Bloomage Biotech Co., LtdJinanShandongChina
| | - Jian Wei
- Bloomage Biotech Co., LtdJinanShandongChina
| | - Ya‐nan Wu
- Bloomage Biotech Co., LtdJinanShandongChina
| | - Zhe Liu
- Bloomage Biotech Co., LtdJinanShandongChina
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Marín-Prida J, Rodríguez-Ulloa A, Besada V, Llopiz-Arzuaga A, Batista NV, Hernández-González I, Pavón-Fuentes N, Marciano Vieira ÉL, Falcón-Cama V, Acosta EF, Martínez-Donato G, Cervantes-Llanos M, Lingfeng D, González LJ, Fernández-Massó JR, Guillén-Nieto G, Pentón-Arias E, Amaral FA, Teixeira MM, Pentón-Rol G. The effects of Phycocyanobilin on experimental arthritis involve the reduction in nociception and synovial neutrophil infiltration, inhibition of cytokine production, and modulation of the neuronal proteome. Front Immunol 2023; 14:1227268. [PMID: 37936684 PMCID: PMC10627171 DOI: 10.3389/fimmu.2023.1227268] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Accepted: 10/02/2023] [Indexed: 11/09/2023] Open
Abstract
Introduction The antinociceptive and pharmacological activities of C-Phycocyanin (C-PC) and Phycocyanobilin (PCB) in the context of inflammatory arthritis remain unexplored so far. In the present study, we aimed to assess the protective actions of these compounds in an experimental mice model that replicates key aspects of human rheumatoid arthritis. Methods Antigen-induced arthritis (AIA) was established by intradermal injection of methylated bovine serum albumin in C57BL/6 mice, and one hour before the antigen challenge, either C-PC (2, 4, or 8 mg/kg) or PCB (0.1 or 1 mg/kg) were administered intraperitoneally. Proteome profiling was also conducted on glutamate-exposed SH-SY5Y neuronal cells to evaluate the PCB impact on this key signaling pathway associated with nociceptive neuronal sensitization. Results and discussion C-PC and PCB notably ameliorated hypernociception, synovial neutrophil infiltration, myeloperoxidase activity, and the periarticular cytokine concentration of IFN-γ, TNF-α, IL-17A, and IL-4 dose-dependently in AIA mice. In addition, 1 mg/kg PCB downregulated the gene expression for T-bet, RORγ, and IFN-γ in the popliteal lymph nodes, accompanied by a significant reduction in the pathological arthritic index of AIA mice. Noteworthy, neuronal proteome analysis revealed that PCB modulated biological processes such as pain, inflammation, and glutamatergic transmission, all of which are involved in arthritic pathology. Conclusions These findings demonstrate the remarkable efficacy of PCB in alleviating the nociception and inflammation in the AIA mice model and shed new light on mechanisms underlying the PCB modulation of the neuronal proteome. This research work opens a new avenue to explore the translational potential of PCB in developing a therapeutic strategy for inflammation and pain in rheumatoid arthritis.
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Affiliation(s)
- Javier Marín-Prida
- Center for Research and Biological Evaluations, Institute of Pharmacy and Food, University of Havana, Havana, Cuba
| | - Arielis Rodríguez-Ulloa
- Division of Biomedical Research, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Vladimir Besada
- Division of Biomedical Research, Center for Genetic Engineering and Biotechnology, Havana, Cuba
- China-Cuba Biotechnology Joint Innovation Center (CCBJIC), Yongzhou Zhong Gu Biotechnology Co. Ltd, Yongzhou, China
| | - Alexey Llopiz-Arzuaga
- Division of Biomedical Research, Center for Genetic Engineering and Biotechnology, Havana, Cuba
- Department of Cellular Engineering and Biocatalysis , Institute of Biotechnology, National Autonomous University of Mexico (UNAM), Cuernavaca, Mexico
| | - Nathália Vieira Batista
- Laboratory of Immunopharmacology, Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | | | - Nancy Pavón-Fuentes
- Immunochemical Department, International Center for Neurological Restoration (CIREN), Havana, Cuba
| | - Érica Leandro Marciano Vieira
- Translational Psychoneuroimmunology Group, School of Medicine, Federal University of Minas Gerais (UFMG), Belo Horizonte, Brazil
| | - Viviana Falcón-Cama
- Division of Biomedical Research, Center for Genetic Engineering and Biotechnology, Havana, Cuba
- Departments of Physiological or Morphological Sciences, Latin American School of Medicine (ELAM), Havana, Cuba
| | - Emilio F. Acosta
- Department of Characterization, Center for Advanced Studies of Cuba, Havana, Cuba
| | - Gillian Martínez-Donato
- Division of Biomedical Research, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Majel Cervantes-Llanos
- Division of Biomedical Research, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | - Dai Lingfeng
- China-Cuba Biotechnology Joint Innovation Center (CCBJIC), Yongzhou Zhong Gu Biotechnology Co. Ltd, Yongzhou, China
| | - Luis J. González
- Division of Biomedical Research, Center for Genetic Engineering and Biotechnology, Havana, Cuba
| | | | - Gerardo Guillén-Nieto
- Division of Biomedical Research, Center for Genetic Engineering and Biotechnology, Havana, Cuba
- Departments of Physiological or Morphological Sciences, Latin American School of Medicine (ELAM), Havana, Cuba
| | - Eduardo Pentón-Arias
- Division of Biomedical Research, Center for Genetic Engineering and Biotechnology, Havana, Cuba
- Departments of Physiological or Morphological Sciences, Latin American School of Medicine (ELAM), Havana, Cuba
| | - Flávio Almeida Amaral
- Laboratory of Immunopharmacology, Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Mauro Martins Teixeira
- Laboratory of Immunopharmacology, Department of Biochemistry and Immunology, Instituto de Ciências Biológicas, Universidade Federal de Minas Gerais, Belo Horizonte, Minas Gerais, Brazil
| | - Giselle Pentón-Rol
- Division of Biomedical Research, Center for Genetic Engineering and Biotechnology, Havana, Cuba
- Departments of Physiological or Morphological Sciences, Latin American School of Medicine (ELAM), Havana, Cuba
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Straub RH, Pongratz G, Buttgereit F, Gaber T. [Energy metabolism of the immune system : Consequences in chronic inflammation]. Z Rheumatol 2023:10.1007/s00393-023-01389-4. [PMID: 37488246 DOI: 10.1007/s00393-023-01389-4] [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] [Accepted: 06/13/2023] [Indexed: 07/26/2023]
Abstract
BACKGROUND Energy is the currency of life. The systemic and intracellular energy metabolism plays an essential role for the energy supply of the resting and activated immune system and this also applies to chronic inflammatory diseases. OBJECTIVE This presentation examines both components of the systemic and cellular energy metabolism in health and chronic inflammation. MATERIAL AND METHODS A literature search was conducted using PubMed, Embase and the Cochrane Library. The information is presented in the form of a narrative review. RESULTS A chronically activated immune system acquires large amounts of energy-rich substrates that are lost for other functions of the body. In particular, the immune system and the brain are in competition. The consequences of this competition are many known diseases, such as fatigue, anxiety, depression, anorexia, sleep problems, sarcopenia, osteoporosis, insulin resistance, hypertension and others. The permanent change in the brain causes long-term alterations that stimulate disease sequelae even after disease remission. In the intracellular energy supply, chronic inflammation typically involves a conversion to glycolysis (to lactate, which has its own regulatory functions) and the pentose phosphate pathway in disorders of mitochondrial function. The chronic changes in immune cells of patients with rheumatoid arthritis (RA) lead to a disruption of the citric acid cycle (Krebs cycle). The hypoxic situation in the inflamed tissue stimulates many alterations. A differentiation is made between effector functions and regulatory functions of immune cells. CONCLUSION Based on the energy changes mentioned, novel treatment suggestions can be made in addition to those already known in energy metabolism.
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Affiliation(s)
- Rainer H Straub
- Labor für Experimentelle Rheumatologie und Neuroendokrin-Immunologie, Klinik und Poliklinik für Innere Medizin I, Universitätsklinikum Regensburg, 93042, Regensburg, Deutschland.
| | - Georg Pongratz
- Abteilung für Rheumatologie, Klinik für Gastroenterologie, Krankenhaus Barmherzige Brüder Regensburg, 93049, Regensburg, Deutschland
| | - Frank Buttgereit
- Medizinische Klinik mit Schwerpunkt Rheumatologie und Klinische Immunologie, Charité - Universitätsmedizin Berlin, Freie Universität Berlin und Humboldt-Universität zu Berlin, Berlin, Deutschland
| | - Timo Gaber
- Medizinische Klinik mit Schwerpunkt Rheumatologie und Klinische Immunologie, Charité - Universitätsmedizin Berlin, Freie Universität Berlin und Humboldt-Universität zu Berlin, Berlin, Deutschland
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Torres A, Pedersen B, Guma M. Solute carrier nutrient transporters in rheumatoid arthritis fibroblast-like synoviocytes. Front Immunol 2022; 13:984408. [PMID: 36341411 PMCID: PMC9632162 DOI: 10.3389/fimmu.2022.984408] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2022] [Accepted: 09/26/2022] [Indexed: 11/13/2022] Open
Abstract
Metabolomic studies show that rheumatoid arthritis (RA) is associated with metabolic disruption. Metabolic changes in fibroblast-like synoviocytes (FLS) likely contribute to FLS abnormal response and strongly contribute to joint destruction. These changes often involve increased expression of nutrient transporters to meet a high demand for energy or biomolecules. The solute carrier (SLC) transporter families are nutrient transporters and serve as 'metabolic gates' for cells by mediating the transport of several different nutrients such as glucose, amino acids, vitamins, neurotransmitters, and inorganic/metal ions. In RA FLS SLC-mediated transmembrane transport was one pathway associated with different epigenetic landscape between RA and osteoarthritis (OA) FLS. These highlight that transporters from the SLC family offer unique targets for further research and offer the promise of future therapeutic targets for RA.
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Affiliation(s)
- Alyssa Torres
- Division of Rheumatology, Allergy and Immunology and School of Medicine, University of California, San Diego, San Diego, CA, United States
| | - Brian Pedersen
- Division of Rheumatology, Allergy and Immunology and School of Medicine, University of California, San Diego, San Diego, CA, United States
- Department of Medicine, Veterans’ Affairs (VA) San Diego Healthcare System, San Diego, CA, United States
| | - Monica Guma
- Division of Rheumatology, Allergy and Immunology and School of Medicine, University of California, San Diego, San Diego, CA, United States
- Department of Medicine, Veterans’ Affairs (VA) San Diego Healthcare System, San Diego, CA, United States
- Department of Medicine, Autonomous University of Barcelona, Barcelona, Spain
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Zeng Y, Zhao K, Oros Klein K, Shao X, Fritzler MJ, Hudson M, Colmegna I, Pastinen T, Bernatsky S, Greenwood CMT. Thousands of CpGs Show DNA Methylation Differences in ACPA-Positive Individuals. Genes (Basel) 2021; 12:1349. [PMID: 34573331 PMCID: PMC8472734 DOI: 10.3390/genes12091349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2021] [Revised: 08/25/2021] [Accepted: 08/26/2021] [Indexed: 11/27/2022] Open
Abstract
High levels of anti-citrullinated protein antibodies (ACPA) are often observed prior to a diagnosis of rheumatoid arthritis (RA). We undertook a replication study to confirm CpG sites showing evidence of differential methylation in subjects positive vs. negative for ACPA, in a new subset of 112 individuals sampled from the population cohort and biobank CARTaGENE in Quebec, Canada. Targeted custom capture bisulfite sequencing was conducted at approximately 5.3 million CpGs located in regulatory or hypomethylated regions from whole blood; library and protocol improvements had been instituted between the original and this replication study, enabling better coverage and additional identification of differentially methylated regions (DMRs). Using binomial regression models, we identified 19,472 ACPA-associated differentially methylated cytosines (DMCs), of which 430 overlapped with the 1909 DMCs reported by the original study; 814 DMRs of relevance were clustered by grouping adjacent DMCs into regions. Furthermore, we performed an additional integrative analysis by looking at the DMRs that overlap with RA related loci published in the GWAS Catalog, and protein-coding genes associated with these DMRs were enriched in the biological process of cell adhesion and involved in immune-related pathways.
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Affiliation(s)
- Yixiao Zeng
- PhD Program in Quantitative Life Sciences, Interfaculty Studies, McGill University, Montréal, QC H3A 1E3, Canada;
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montréal, QC H3T 1E2, Canada; (K.Z.); (K.O.K.); (M.H.)
| | - Kaiqiong Zhao
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montréal, QC H3T 1E2, Canada; (K.Z.); (K.O.K.); (M.H.)
- Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montréal, QC H3A 1A2, Canada
| | - Kathleen Oros Klein
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montréal, QC H3T 1E2, Canada; (K.Z.); (K.O.K.); (M.H.)
| | - Xiaojian Shao
- Digital Technologies Research Centre, National Research Council Canada, Ottawa, ON K1A 0R6, Canada;
| | - Marvin J. Fritzler
- Cumming School of Medicine, University of Calgary, Calgary, AB T2N 1N4, Canada;
| | - Marie Hudson
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montréal, QC H3T 1E2, Canada; (K.Z.); (K.O.K.); (M.H.)
- Department of Medicine, McGill University, Montréal, QC H4A 3J1, Canada; (I.C.); (S.B.)
- Division of Rheumatology, Jewish General Hospital, Montréal, QC H3T 1E2, Canada
| | - Inés Colmegna
- Department of Medicine, McGill University, Montréal, QC H4A 3J1, Canada; (I.C.); (S.B.)
- Division of Rheumatology, McGill University, Montréal, QC H3G 1A4, Canada
| | - Tomi Pastinen
- Department of Human Genetics, McGill University, Montréal, QC H3A 0C7, Canada;
- Center for Pediatric Genomic Medicine, Children’s Mercy, Kansas City, MO 64108, USA
| | - Sasha Bernatsky
- Department of Medicine, McGill University, Montréal, QC H4A 3J1, Canada; (I.C.); (S.B.)
- Division of Rheumatology, McGill University, Montréal, QC H3G 1A4, Canada
| | - Celia M. T. Greenwood
- PhD Program in Quantitative Life Sciences, Interfaculty Studies, McGill University, Montréal, QC H3A 1E3, Canada;
- Lady Davis Institute for Medical Research, Jewish General Hospital, Montréal, QC H3T 1E2, Canada; (K.Z.); (K.O.K.); (M.H.)
- Department of Epidemiology, Biostatistics and Occupational Health, McGill University, Montréal, QC H3A 1A2, Canada
- Department of Human Genetics, McGill University, Montréal, QC H3A 0C7, Canada;
- Gerald Bronfman Department of Oncology, McGill University, Montréal, QC H4A 3T2, Canada
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Qiu J, Wu B, Goodman SB, Berry GJ, Goronzy JJ, Weyand CM. Metabolic Control of Autoimmunity and Tissue Inflammation in Rheumatoid Arthritis. Front Immunol 2021; 12:652771. [PMID: 33868292 PMCID: PMC8050350 DOI: 10.3389/fimmu.2021.652771] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Accepted: 03/15/2021] [Indexed: 12/19/2022] Open
Abstract
Like other autoimmune diseases, rheumatoid arthritis (RA) develops in distinct stages, with each phase of disease linked to immune cell dysfunction. HLA class II genes confer the strongest genetic risk to develop RA. They encode for molecules essential in the activation and differentiation of T cells, placing T cells upstream in the immunopathology. In Phase 1 of the RA disease process, T cells lose a fundamental function, their ability to be self-tolerant, and provide help for autoantibody-producing B cells. Phase 2 begins many years later, when mis-differentiated T cells gain tissue-invasive effector functions, enter the joint, promote non-resolving inflammation, and give rise to clinically relevant arthritis. In Phase 3 of the RA disease process, abnormal innate immune functions are added to adaptive autoimmunity, converting synovial inflammation into a tissue-destructive process that erodes cartilage and bone. Emerging data have implicated metabolic mis-regulation as a fundamental pathogenic pathway in all phases of RA. Early in their life cycle, RA T cells fail to repair mitochondrial DNA, resulting in a malfunctioning metabolic machinery. Mitochondrial insufficiency is aggravated by the mis-trafficking of the energy sensor AMPK away from the lysosomal surface. The metabolic signature of RA T cells is characterized by the shunting of glucose toward the pentose phosphate pathway and toward biosynthetic activity. During the intermediate and terminal phase of RA-imposed tissue inflammation, tissue-residing macrophages, T cells, B cells and stromal cells are chronically activated and under high metabolic stress, creating a microenvironment poor in oxygen and glucose, but rich in metabolic intermediates, such as lactate. By sensing tissue lactate, synovial T cells lose their mobility and are trapped in the tissue niche. The linkage of defective DNA repair, misbalanced metabolic pathways, autoimmunity, and tissue inflammation in RA encourages metabolic interference as a novel treatment strategy during both the early stages of tolerance breakdown and the late stages of tissue inflammation. Defining and targeting metabolic abnormalities provides a new paradigm to treat, or even prevent, the cellular defects underlying autoimmune disease.
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Affiliation(s)
- Jingtao Qiu
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Bowen Wu
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Stuart B Goodman
- Department of Orthopedic Surgery, Stanford University School of Medicine, Stanford, CA, United States
| | - Gerald J Berry
- Department of Pathology, Stanford University School of Medicine, Stanford, CA, United States
| | - Jorg J Goronzy
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
| | - Cornelia M Weyand
- Department of Medicine, Stanford University School of Medicine, Stanford, CA, United States
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Glutamate-Gated NMDA Receptors: Insights into the Function and Signaling in the Kidney. Biomolecules 2020; 10:biom10071051. [PMID: 32679780 PMCID: PMC7407907 DOI: 10.3390/biom10071051] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 07/10/2020] [Accepted: 07/13/2020] [Indexed: 12/21/2022] Open
Abstract
N-Methyl-d-aspartate receptor (NMDAR) is a glutamate-gated ionotropic receptor that intervenes in most of the excitatory synaptic transmission within the central nervous system (CNS). Aside from being broadly distributed in the CNS and having indispensable functions in the brain, NMDAR has predominant roles in many physiological and pathological processes in a wide range of non-neuronal cells and tissues. The present review outlines current knowledge and understanding of the physiological and pathophysiological functions of NMDAR in the kidney, an essential excretory and endocrine organ responsible for the whole-body homeostasis. The review also explores the recent findings regarding signaling pathways involved in NMDAR-mediated responses in the kidney. As established from diverse lines of research reviewed here, basal levels of receptor activation within the kidney are essential for the maintenance of healthy tubular and glomerular function, while a disproportionate activation can lead to a disruption of NMDAR's downstream signaling pathways and a myriad of pathophysiological consequences.
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Spang C, Backman LJ, Le Roux S, Chen J, Danielson P. Glutamate signaling through the NMDA receptor reduces the expression of scleraxis in plantaris tendon derived cells. BMC Musculoskelet Disord 2017; 18:218. [PMID: 28545490 PMCID: PMC5445477 DOI: 10.1186/s12891-017-1575-4] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Accepted: 05/12/2017] [Indexed: 12/31/2022] Open
Abstract
Background A body of evidence demonstrating changes to the glutaminergic system in tendinopathy has recently emerged. This hypothesis was further tested by studying the effects of glutamate on the tenocyte phenotype, and the impact of loading and exposure to glucocorticoids on the glutamate signaling machinery. Methods Plantaris tendon tissue and cultured plantaris tendon derived cells were immunohisto-/cytochemically stained for glutamate, N-Methyl-D-Aspartate receptor 1 (NMDAR1) and vesicular glutamate transporter 2 (VGluT2). Primary cells were exposed to glutamate or receptor agonist NMDA. Cell death/viability was measured via LDH/MTS assays, and Western blot for cleaved caspase 3 (c-caspase 3) and cleaved poly (ADP-ribose) polymerase (c-PARP). Scleraxis mRNA (Scx)/protein(SCX) were analyzed by qPCR and Western blot, respectively. A FlexCell system was used to apply cyclic strain. The effect of glucocorticoids was studies by adding dexamethasone (Dex). The mRNA of the glutamate synthesizing enzymes Got1 and Gls, and NMDAR1 protein were measured. Levels of free glutamate were determined by a colorimetric assay. Results Immunoreactions for glutamate, VGluT2, and NMDAR1 were found in tenocytes and peritendinous cells in tissue sections and in cultured cells. Cell death was induced by high concentrations of glutamate but not by NMDA. Scleraxis mRNA/protein was down-regulated in response to NMDA/glutamate stimulation. Cyclic strain increased, and Dex decreased, Gls and Got1 mRNA expression. Free glutamate levels were lower after Dex exposure. Conclusions In conclusion, NMDA receptor stimulation leads to a reduction of scleraxis expression that may be involved in a change of phenotype in tendon cells. Glutamate synthesis is increased in tendon cells in response to strain and decreased by glucocorticoid stimulation. This implies that locally produced glutamate could be involved in the tissue changes observed in tendinopathy.
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Affiliation(s)
- Christoph Spang
- Department of Integrative Medical Biology, Anatomy, Umeå University, SE-901 87, Umeå, Sweden.
| | - Ludvig J Backman
- Department of Integrative Medical Biology, Anatomy, Umeå University, SE-901 87, Umeå, Sweden
| | - Sandrine Le Roux
- Department of Integrative Medical Biology, Anatomy, Umeå University, SE-901 87, Umeå, Sweden
| | - Jialin Chen
- Department of Integrative Medical Biology, Anatomy, Umeå University, SE-901 87, Umeå, Sweden
| | - Patrik Danielson
- Department of Integrative Medical Biology, Anatomy, Umeå University, SE-901 87, Umeå, Sweden.,Department of Clinical Sciences, Ophthalmology, Umeå University, Umeå, Sweden
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Inhibitors of glutamate release from breast cancer cells; new targets for cancer-induced bone-pain. Sci Rep 2015; 5:8380. [PMID: 25670024 PMCID: PMC4323637 DOI: 10.1038/srep08380] [Citation(s) in RCA: 33] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2014] [Accepted: 01/19/2015] [Indexed: 01/20/2023] Open
Abstract
Glutamate is an important signaling molecule in a wide variety of tissues. Aberrant glutamatergic signaling disrupts normal tissue homeostasis and induces several disruptive pathological conditions including pain. Breast cancer cells secrete high levels of glutamate and often metastasize to bone. Exogenous glutamate can disrupt normal bone turnover and may be responsible for cancer-induced bone pain (CIBP). CIBP is a significant co-morbidity that affects quality of life for many advanced-stage breast cancer patients. Current treatment options are commonly accompanied by serious side-effects that negatively impact patient care. Identifying small molecule inhibitors of glutamate release from aggressive breast cancer cells advances a novel, mechanistic approach to targeting CIBP that could advance treatment for several pathological conditions. Using high-throughput screening, we investigated the ability of approximately 30,000 compounds from the Canadian Compound Collection to reduce glutamate release from MDA-MB-231 breast cancer cells. This line is known to secrete high levels of glutamate and has been demonstrated to induce CIBP by this mechanism. Positive chemical hits were based on the potency of each molecule relative to a known pharmacological inhibitor of glutamate release, sulfasalazine. Efficacy was confirmed and drug-like molecules were identified as potent inhibitors of glutamate secretion from MDA-MB-231, MCF-7 and Mat-Ly-Lu cells.
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Abstract
INTRODUCTION NMDA receptor (NMDAR) is an ionotropic glutamate receptor with a high permeability to calcium and a unique feature of controlling numerous calcium-dependent processes. Apart from being widely distributed in the CNS, the presence of NMDAR and its potential significance in a variety of non-neuronal cells and tissues has become an interesting research topic. AREAS COVERED The current review summarizes prevailing knowledge on the role of NMDARs in the kidney, bone and parathyroid gland, three main organs responsible for calcium homeostasis, as well as in the heart, an organ whose function is highly dependable on balanced intracellular calcium concentrations. The review also examines studies that have advanced our understanding of the therapeutic potential of NMDAR agonists and antagonists in renal, cardiovascular and bone pathologies. EXPERT OPINION NMDARs have a preeminent role in many physiological and pathological processes outside the CNS. In certain organs and/or disease conditions, activating the NMDAR leads to beneficial effects for the target organ, whereas in other diseases cell signaling downstream of NMDAR activation can exacerbate their pathology. Therefore, targeting NMDARs therapeutically is rather intricate work, and surely requires more extensive investigation in order to properly tune up the diverse NMDAR's actions translating them into beneficial cellular responses.
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Affiliation(s)
- Milica Bozic
- Institute for Biomedical Research (IRB Lleida), Nephrology Research Department , Edificio Biomedicina 1. Lab B1-10, Lleida , Spain +34 973 003 650 ; +34 973 702 213 ;
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Pathway-based association analysis of two genome-wide screening data identifies rheumatoid arthritis-related pathways. Genes Immun 2014; 15:487-94. [DOI: 10.1038/gene.2014.48] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 05/06/2014] [Accepted: 06/23/2014] [Indexed: 12/26/2022]
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The neurotransmitter glutamate and human T cells: glutamate receptors and glutamate-induced direct and potent effects on normal human T cells, cancerous human leukemia and lymphoma T cells, and autoimmune human T cells. J Neural Transm (Vienna) 2014; 121:983-1006. [DOI: 10.1007/s00702-014-1167-5] [Citation(s) in RCA: 64] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Accepted: 01/19/2014] [Indexed: 12/26/2022]
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Bonnet CS, Williams AS, Gilbert SJ, Harvey AK, Evans BA, Mason DJ. AMPA/kainate glutamate receptors contribute to inflammation, degeneration and pain related behaviour in inflammatory stages of arthritis. Ann Rheum Dis 2013; 74:242-51. [PMID: 24130267 PMCID: PMC4283694 DOI: 10.1136/annrheumdis-2013-203670] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Objectives Synovial fluid glutamate concentrations increase in arthritis. Activation of kainate (KA) and α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) glutamate receptors (GluRs) increase interleukin-6 (IL-6) release and cause arthritic pain, respectively. We hypothesised that AMPA and KA GluRs are expressed in human arthritis, and that intra-articular NBQX (AMPA/KA GluR antagonist) prevents pain and pathology in antigen-induced arthritis (AIA). Methods GluR immunohistochemistry was related to synovial inflammation and degradation in osteoarthritis (OA) and rheumatoid arthritis (RA). A single intra-articular NBQX injection was given at induction, and knee swelling and gait of AIA and AIA+NBQX rats compared over 21 days, before imaging, RT-qPCR, histology and immunohistochemistry of joints. Effects of NBQX on human primary osteoblast (HOB) activity were determined. Results AMPAR2 and KA1 immunolocalised to remodelling bone, cartilage and synovial cells in human OA and RA, and rat AIA. All arthritic tissues showed degradation and synovial inflammation. NBQX reduced GluR abundance, knee swelling (p<0.001, days 1–21), gait abnormalities (days 1–2), end-stage joint destruction (p<0.001), synovial inflammation (p<0.001), and messenger RNA expression of meniscal IL-6 (p<0.05) and whole joint cathepsin K (p<0.01). X-ray and MRI revealed fewer cartilage and bone erosions, and less inflammation after NBQX treatment. NBQX reduced HOB number and prevented mineralisation. Conclusions AMPA/KA GluRs are expressed in human OA and RA, and in AIA, where a single intra-articular injection of NBQX reduced swelling by 33%, and inflammation and degeneration scores by 34% and 27%, respectively, exceeding the efficacy of approved drugs in the same model. AMPA/KA GluR antagonists represent a potential treatment for arthritis.
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Affiliation(s)
- Cleo S Bonnet
- Arthritis Research UK Biomechanics and Bioengineering Centre, School of Biosciences, Cardiff University, Cardiff, UK
| | - Anwen S Williams
- Institute of Infection and Immunity, School of Medicine, Cardiff University, Cardiff, UK
| | - Sophie J Gilbert
- Arthritis Research UK Biomechanics and Bioengineering Centre, School of Biosciences, Cardiff University, Cardiff, UK
| | - Ann K Harvey
- Arthritis Research UK Biomechanics and Bioengineering Centre, School of Medicine, Cardiff University, Cardiff, UK
| | - Bronwen A Evans
- Institute of Molecular and Experimental Medicine, School of Medicine, Cardiff University, Cardiff, UK
| | - Deborah J Mason
- Division of Pathophysiology and Repair, School of Biosciences, Cardiff University, Cardiff, UK
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Parada-Turska J, Zgrajka W, Majdan M. Kynurenic acid in synovial fluid and serum of patients with rheumatoid arthritis, spondyloarthropathy, and osteoarthritis. J Rheumatol 2013; 40:903-9. [PMID: 23588943 DOI: 10.3899/jrheum.121035] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
OBJECTIVE Previously we demonstrated that kynurenic acid (KYNA), an endogenous metabolite of kynurenine, is present in the synovial fluid of patients with rheumatoid arthritis (RA). KYNA inhibits proliferation of synoviocytes in vitro. The goal of our study was to compare KYNA concentrations in synovial fluid and blood of patients with RA, inflammatory spondyloarthropathies (SpA), and osteoarthritis (OA). METHODS Serum and synovial fluid samples were obtained from 189 patients with RA, 56 patients with SpA, and 32 patients with OA. KYNA was separated using a high-performance liquid chromatography system and measured fluorometrically. RESULTS KYNA concentration in synovial fluid obtained from patients with RA and SpA was significantly lower than that in patients with OA (p < 0.05). The concentration of KYNA in serum of patients with RA, SpA, and OA did not differ among all groups studied. The positive correlation between KYNA content in synovial fluid and serum was found in patients with RA (p < 0.05). Univariate linear regression analysis demonstrated that fibrinogen was significantly associated with KYNA in synovial fluid (p < 0.05), and red blood cell counts, morning stiffness, and pain scores were significantly associated with KYNA level in serum (all p < 0.05). Multivariate regression analysis revealed correlation between the following independent variables: hemoglobin level, hematocrit, red blood cell count in conjunction with age and KYNA content in synovial fluid. A lack of correlation was observed between KYNA content in synovial fluid of patients with RA and other clinical and laboratory measures of disease activity. CONCLUSION Our data show a local deficit of KYNA in inflammatory states.
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Affiliation(s)
- Jolanta Parada-Turska
- Department of Rheumatology and Connective Tissue Diseases, Medical University, Lublin, Poland.
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Schizas N, Weiss R, Lian O, Frihagen F, Bahr R, Ackermann PW. Glutamate receptors in tendinopathic patients. J Orthop Res 2012; 30:1447-52. [PMID: 22354721 DOI: 10.1002/jor.22094] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2011] [Accepted: 02/02/2012] [Indexed: 02/04/2023]
Abstract
Tendinopathy, pain, and degeneration, may be related to the up-regulation of substance P (SP) and its activation of glutamate receptors. We hypothesized that the pathogenesis of tendinopathy involves N-methyl-D-aspartate receptor type 1 (NMDAR1) activation (phosphorylated NMDAR1; phospho-NMDAR1) co-existing with SP. Moreover, we examined the presence of metabotropic receptors that increase (mGluR1 and mGluR5) or decrease (mGluR6 and mGluR7) NMDAR1 excitability. Biopsies from patients with patellar tendinopathy (n = 10) and from controls (n = 8) were immunohistochemically analyzed according to the occurrence and tissue distribution of NMDAR1, phosho-NMDAR1, mGluR (1, 5-7), and SP. The biopsies were immunohistochemically single- and double-stained and semi-quantitatively assessed. Tendinopathic biopsies exhibited increased occurrence of NMDAR1, phospho-NMDAR1, SP, and mGluR5, while mGluR6-7 were not increased and mGluR1 was not found. The occurrence of NMDAR1 and SP correlated in tendinopathy (r(2) = 0.54, p = 0.03), but not in the controls (r(2) = 0.11, p = 0.4). Co-localization of SP and phospho-NMDAR1 within the tendon proper was only found in tendinopathy, localized on hypertrophic tenocytes, blood vessels, and penetrating free-nerve fibres. Up-regulation and activation of the glutamate receptor, phospho-NMDAR1, suggests a role in the pathophysiology of tendinopathy. Increased NMDAR1 excitability may be related to increased SP and mGluR5. The unique co-existence of SP and phospho-NMDAR1 in tendinopathy presumably reflects a tissue proliferative and nociceptive role.
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Affiliation(s)
- Nikos Schizas
- Orthopedic Laboratory, Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
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Fujita H, Hinoi E, Nakatani E, Yamamoto T, Takarada T, Yoneda Y. Possible modulation of process extension by N-methyl-D-aspartate receptor expressed in osteocytic MLO-Y4 cells. J Pharmacol Sci 2012; 119:112-6. [PMID: 22641131 DOI: 10.1254/jphs.12068sc] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022] Open
Abstract
In contrast to osteoblasts, little attention has been paid to expression profiles of different glutamatergic signaling machineries in osteocytes, which are the most abundant cells with a possible role as a mechanical sensor in bone. Here, we show that N-methyl-D-aspartate receptor (NMDAR) is expressed by osteocytic cells in five-weeks-old mouse tibiae in vivo as well as by osteocytic MLO-Y4 cells in vitro. Sustained exposure to the NMDAR antagonist dizocilpine significantly increased the number of cells with processes in cultured MLO-Y4 cells. These results suggest that NMDAR would be expressed by osteocytes with an unidentified role in the process extension.
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Affiliation(s)
- Hiroyuki Fujita
- Laboratory of Molecular Pharmacology, Division of Pharmaceutical Sciences, Kanazawa University Graduate School of Natural Science and Technology, Kakuma-machi, Ishikawa, Japan
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