1
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Raya Tonetti F, Eguileor A, Mrdjen M, Pathak V, Travers J, Nagy LE, Llorente C. Gut-liver axis: Recent concepts in pathophysiology in alcohol-associated liver disease. Hepatology 2024:01515467-990000000-00873. [PMID: 38691396 DOI: 10.1097/hep.0000000000000924] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2024] [Accepted: 04/20/2024] [Indexed: 05/03/2024]
Abstract
The growing recognition of the role of the gut microbiome's impact on alcohol-associated diseases, especially in alcohol-associated liver disease, emphasizes the need to understand molecular mechanisms involved in governing organ-organ communication to identify novel avenues to combat alcohol-associated diseases. The gut-liver axis refers to the bidirectional communication and interaction between the gut and the liver. Intestinal microbiota plays a pivotal role in maintaining homeostasis within the gut-liver axis, and this axis plays a significant role in alcohol-associated liver disease. The intricate communication between intestine and liver involves communication between multiple cellular components in each organ that enable them to carry out their physiological functions. In this review, we focus on novel approaches to understanding how chronic alcohol exposure impacts the microbiome and individual cells within the liver and intestine, as well as the impact of ethanol on the molecular machinery required for intraorgan and interorgan communication.
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Affiliation(s)
- Fernanda Raya Tonetti
- Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Alvaro Eguileor
- Department of Medicine, University of California San Diego, La Jolla, California, USA
| | - Marko Mrdjen
- Department of Molecular Medicine, Case Western Reserve University, Cleveland, Ohio, USA
- Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, Ohio, USA
| | - Vai Pathak
- Department of Quantitative Health Sciences, Cleveland Clinic, Cleveland, Ohio, USA
| | - Jared Travers
- Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, Ohio, USA
- Department of Gastroenterology and Hepatology, University Hospital, Cleveland, Ohio, USA
| | - Laura E Nagy
- Department of Molecular Medicine, Case Western Reserve University, Cleveland, Ohio, USA
- Department of Inflammation and Immunity, Cleveland Clinic, Cleveland, Ohio, USA
- Department of Gastroenterology and Hepatology, Cleveland Clinic, Cleveland, Ohio, USA
| | - Cristina Llorente
- Department of Medicine, University of California San Diego, La Jolla, California, USA
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2
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Alfredsson L, Klareskog L, Hedström AK. Reply. Arthritis Rheumatol 2024; 76:660-661. [PMID: 37986134 DOI: 10.1002/art.42762] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 10/26/2023] [Indexed: 11/22/2023]
Affiliation(s)
| | - Lars Klareskog
- Karolinska Institutet and Karolinska University Hospital, Solna, Stockholm, Sweden
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3
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Yang Q, Zhang F, Chen H, Hu Y, Yang N, Yang W, Wang J, Yang Y, Xu R, Xu C. The differentiation courses of the Tfh cells: a new perspective on autoimmune disease pathogenesis and treatment. Biosci Rep 2024; 44:BSR20231723. [PMID: 38051200 PMCID: PMC10830446 DOI: 10.1042/bsr20231723] [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: 10/06/2023] [Revised: 11/23/2023] [Accepted: 12/04/2023] [Indexed: 12/07/2023] Open
Abstract
The follicular helper T cells are derived from CD4+T cells, promoting the formation of germinal centers and assisting B cells to produce antibodies. This review describes the differentiation process of Tfh cells from the perspectives of the initiation, maturation, migration, efficacy, and subset classification of Tfh cells, and correlates it with autoimmune disease, to provide information for researchers to fully understand Tfh cells and provide further research ideas to manage immune-related diseases.
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Affiliation(s)
- Qingya Yang
- Division of Rheumatology, People’s Hospital of Mianzhu, Mianzhu, Sichuan, 618200, China
| | - Fang Zhang
- Division of Rheumatology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210028, China
- Division of Rheumatology, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, Jiangsu 210028, China
| | - Hongyi Chen
- Division of Rheumatology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210028, China
- Division of Rheumatology, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, Jiangsu 210028, China
| | - Yuman Hu
- Division of Rheumatology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210028, China
- Division of Rheumatology, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, Jiangsu 210028, China
| | - Ning Yang
- Division of Rheumatology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210028, China
- Division of Rheumatology, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, Jiangsu 210028, China
| | - Wenyan Yang
- Division of Rheumatology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210028, China
- Division of Rheumatology, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, Jiangsu 210028, China
| | - Jing Wang
- Division of Rheumatology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210028, China
- Division of Rheumatology, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, Jiangsu 210028, China
| | - Yaxu Yang
- Division of Rheumatology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210028, China
- Division of Rheumatology, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, Jiangsu 210028, China
| | - Ran Xu
- Division of Rheumatology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210028, China
- Division of Rheumatology, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, Jiangsu 210028, China
| | - Chao Xu
- Division of Rheumatology, Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, Jiangsu, 210028, China
- Division of Rheumatology, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, Jiangsu 210028, China
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4
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Tokifuji Y, Hayabuchi H, Sasaki T, Hara-Chikuma M, Hirota K, Takahashi H, Amagai M, Yoshimura A, Chikuma S. Targeting abatacept-resistant T-helper-17 cells by aldehyde dehydrogenase inhibition. iScience 2024; 27:108646. [PMID: 38226171 PMCID: PMC10788227 DOI: 10.1016/j.isci.2023.108646] [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: 05/26/2023] [Revised: 09/06/2023] [Accepted: 12/04/2023] [Indexed: 01/17/2024] Open
Abstract
IL-17-producing helper T (Th17) cells are long-lived and serve as central effector cells in chronic autoimmune diseases. The underlying mechanisms of Th17 persistence remain unclear. We demonstrated that abatacept, a CD28 antagonist, effectively prevented the development of skin disease in a Th17-dependent experimental autoimmune dermatitis model. Abatacept selectively inhibited the emergence of IL-7R-negative effector-phenotype T cells while allowing the survival and proliferation of IL-7R+ memory-phenotype cells. The surviving IL-7R+ Th17 cells expressed genes associated with alcohol/aldehyde detoxification and showed potential to transdifferentiate into IL-7R-negative effector cells. Inhibiting aldehyde dehydrogenase reduced IL-7R+ Th17 cells in vivo, independently of CD28, and exhibited additive effects when combined with abatacept. Our findings suggest that CD28 blockade prevents inflammation without eliminating persistent memory cells. These remaining memory cells can be targeted by other drugs, such as aldehyde dehydrogenase inhibitors, to limit their survival, thereby facilitating the treatment of chronic autoimmune diseases.
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Affiliation(s)
- Yukiko Tokifuji
- Department of Microbiology and Immunology, Keio University School of Medicine, 35 Shinanomachi, East Lecture Hall 4F, Shinjuku, Tokyo 160-8582, Japan
| | - Hodaka Hayabuchi
- Department of Microbiology and Immunology, Keio University School of Medicine, 35 Shinanomachi, East Lecture Hall 4F, Shinjuku, Tokyo 160-8582, Japan
| | - Takashi Sasaki
- Center for Supercentenarian Medical Research, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan
| | - Mariko Hara-Chikuma
- Department of Pharmacology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan
| | - Keiji Hirota
- Laboratory of Integrative Biological Science, Institute for Life and Medical Sciences, Kyoto University, Kyoto 606-8507, Japan
| | - Hayato Takahashi
- Department of Dermatology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan
| | - Masayuki Amagai
- Department of Dermatology, Keio University School of Medicine, 35 Shinanomachi, Shinjuku, Tokyo 160-8582, Japan
| | - Akihiko Yoshimura
- Department of Microbiology and Immunology, Keio University School of Medicine, 35 Shinanomachi, East Lecture Hall 4F, Shinjuku, Tokyo 160-8582, Japan
| | - Shunsuke Chikuma
- Department of Microbiology and Immunology, Keio University School of Medicine, 35 Shinanomachi, East Lecture Hall 4F, Shinjuku, Tokyo 160-8582, Japan
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5
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Lin CY, Lee YH, Chang H, Huo AP. The complex nexus of alcohol consumption and rheumatoid arthritis: Unraveling insights for disease management. Int J Rheum Dis 2024; 27:e14966. [PMID: 37927139 DOI: 10.1111/1756-185x.14966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2023] [Revised: 10/16/2023] [Accepted: 10/27/2023] [Indexed: 11/07/2023]
Affiliation(s)
- Chien-Yu Lin
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Yung-Heng Lee
- Department of Orthopedics, Cishan Hospital, Ministry of Health and Welfare, Kaohsiung, Taiwan
- Institute of Medical Science and Technology, National Sun Yat-sen University, Kaohsiung, Taiwan
- Department of Senior Services Industry Management, Minghsin University of Science and Technology, Hsinchu, Taiwan
- Department of Recreation and Sport Management, Shu-Te University, Kaohsiung, Taiwan
| | - Hsuan Chang
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - An-Ping Huo
- School of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Chung Shan Medical University Hospital, Taichung, Taiwan
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6
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Hübner M, Zaiss MM, Azizov V. Double-edged sword: Alcohol's effect on rheumatoid arthritis and beyond. Joint Bone Spine 2024; 91:105626. [PMID: 37543136 DOI: 10.1016/j.jbspin.2023.105626] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Accepted: 07/21/2023] [Indexed: 08/07/2023]
Affiliation(s)
- Michel Hübner
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander- University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany; Deutsches Zentrum Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Mario M Zaiss
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander- University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany; Deutsches Zentrum Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany.
| | - Vugar Azizov
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander- University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany; Deutsches Zentrum Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany; Princess Margaret Cancer Centre, University Health Network, Toronto, Canada
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7
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Tamai M, Taba S, Mise T, Yamashita M, Ishikawa H, Shintake T. Effect of Ethanol Vapor Inhalation Treatment on Lethal Respiratory Viral Infection With Influenza A. J Infect Dis 2023; 228:1720-1729. [PMID: 37101418 PMCID: PMC10733743 DOI: 10.1093/infdis/jiad089] [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: 12/02/2022] [Revised: 03/12/2023] [Accepted: 04/03/2023] [Indexed: 04/28/2023] Open
Abstract
Ethanol (EtOH) effectively inactivates enveloped viruses in vitro, including influenza and severe acute respiratory syndrome coronavirus 2. Inhaled EtOH vapor may inhibit viral infection in mammalian respiratory tracts, but this has not yet been demonstrated. Here we report that unexpectedly low EtOH concentrations in solution, approximately 20% (vol/vol), rapidly inactivate influenza A virus (IAV) at mammalian body temperature and are not toxic to lung epithelial cells on apical exposure. Furthermore, brief exposure to 20% (vol/vol) EtOH decreases progeny virus production in IAV-infected cells. Using an EtOH vapor exposure system that is expected to expose murine respiratory tracts to 20% (vol/vol) EtOH solution by gas-liquid equilibrium, we demonstrate that brief EtOH vapor inhalation twice a day protects mice from lethal IAV respiratory infection by reducing viruses in the lungs without harmful side effects. Our data suggest that EtOH vapor inhalation may provide a versatile therapy against various respiratory viral infectious diseases.
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Affiliation(s)
- Miho Tamai
- Immune Signal Unit, Okinawa Institute of Science and Technology, Tancha 1919-1, Onna-son, Okinawa 904-0495, Japan
| | - Seita Taba
- Quantum Wave Microscopy Unit, Okinawa Institute of Science and Technology, Tancha 1919-1, Onna-son, Okinawa 904-0495, Japan
| | - Takeshi Mise
- Quantum Wave Microscopy Unit, Okinawa Institute of Science and Technology, Tancha 1919-1, Onna-son, Okinawa 904-0495, Japan
| | - Masao Yamashita
- Quantum Wave Microscopy Unit, Okinawa Institute of Science and Technology, Tancha 1919-1, Onna-son, Okinawa 904-0495, Japan
| | - Hiroki Ishikawa
- Immune Signal Unit, Okinawa Institute of Science and Technology, Tancha 1919-1, Onna-son, Okinawa 904-0495, Japan
| | - Tsumoru Shintake
- Quantum Wave Microscopy Unit, Okinawa Institute of Science and Technology, Tancha 1919-1, Onna-son, Okinawa 904-0495, Japan
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8
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Meera P, Uusi-Oukari M, Lipshutz GS, Wallner M. GABA A receptors as plausible molecular targets and mediators for taurine and homotaurine actions. Front Pharmacol 2023; 14:1271203. [PMID: 38155909 PMCID: PMC10752957 DOI: 10.3389/fphar.2023.1271203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 11/20/2023] [Indexed: 12/30/2023] Open
Abstract
Dementia and autoimmune diseases are prevalent conditions with limited treatment options. Taurine and homotaurine (HT) are naturally occurring sulfonate amino acids, with taurine being highly abundant in animal tissues, but declining with age in the blood. HT is a blood-brain barrier permeable drug under investigation for Alzheimer's disease. HT also has beneficial effects in a mouse model of multiple sclerosis likely through an anti-inflammatory mechanism mediated by GABAA receptor (GABAAR) agonism in immune cells. While both taurine and HT are structural GABA analogs and thought to be GABA mimetics at GABAARs, there is uncertainty concerning their potency as GABA mimetics on native GABAARs. We show that HT is a very potent GABA mimetic, as it evokes GABAAR-mediated currents with an EC50 of 0.4 μM (vs. 3.7 μM for GABA and 116 µM for taurine) in murine cerebellar granule cells in brain slices, with both taurine and HT having similar efficacy in activating native GABAARs. Furthermore, HT displaces the high affinity GABAAR ligand [3H]muscimol at similarly low concentrations (HT IC50 of 0.16 μM vs. 125 μM for taurine) in mouse brain homogenates. The potency of taurine and HT as GABAAR agonists aligns with endogenous concentrations of taurine in the blood and with HT concentrations achieved in the brain following oral administration of HT or the HT pro-drug ALZ-801. Consequently, we discuss that GABAARs subtypes, similar to the ones we studied here in neurons, are plausible targets for mediating the potential beneficial effects of taurine in health and life-span extension and the beneficial HT effects in dementia and autoimmune conditions.
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Affiliation(s)
- Pratap Meera
- Department of Neurobiology, University of California, Los Angeles, Los Angeles, CA, United States
| | - Mikko Uusi-Oukari
- Integrative Physiology and Pharmacology, Institute of Biomedicine, University of Turku, Turku, Finland
| | - Gerald S. Lipshutz
- Department of Surgery, University of California, Los Angeles, Los Angeles, CA, United States
- Molecular and Medical Pharmacology, University of California, Los Angeles, Los Angeles, CA, United States
- Intellectual and Developmental Disabilities Research Center, University of California, Los Angeles, Los Angeles, CA, United States
- Semel Institute for Neuroscience, University of California, Los Angeles, Los Angeles, CA, United States
| | - Martin Wallner
- Department of Surgery, University of California, Los Angeles, Los Angeles, CA, United States
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9
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Lai R, Deng X, Lv X, Liu Q, Zhou K, Peng D. Causal relationship between rheumatoid arthritis and hypothyroidism or hyperthyroidism: a bidirectional two-sample univariable and multivariable Mendelian randomization study. Front Endocrinol (Lausanne) 2023; 14:1256208. [PMID: 38093966 PMCID: PMC10716525 DOI: 10.3389/fendo.2023.1256208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2023] [Accepted: 11/08/2023] [Indexed: 12/18/2023] Open
Abstract
Objective The causal relationship between Rheumatoid arthritis (RA) and hypothyroidism/hyperthyroidism remains controversial due to the limitations of conventional observational research, such as confounding variables and reverse causality. We aimed to examine the potential causal relationship between RA and hypothyroidism/hyperthyroidism using Mendelian randomization (MR). Method We conducted a bidirectional two-sample univariable analysis to investigate the potential causal relationship between hypothyroidism/hyperthyroidism and RA. Furthermore, we performed a multivariate analysis to account for the impact of body mass index (BMI), smoking quantity, and alcohol intake frequency. Results The univariable analysis indicated that RA has a causative influence on hypothyroidism (odds ratio [OR]=1.07, 95% confidence interval [CI]=1.01-1.14, P=0.02) and hyperthyroidism (OR=1.32, 95% CI=1.15-1.52, P<0.001). When hypothyroidism/hyperthyroidism was considered as an exposure variable, we only observed a causal relationship between hypothyroidism (OR=1.21, 95% CI=1.05-1.40, P=0.01) and RA, whereas no such connection was found between hyperthyroidism (OR=0.91, 95% CI=0.83-1.01, P=0.07) and RA. In the multivariate MR analyses, after separately and jointly adjusting for the effects of daily smoking quantity, alcohol intake frequency, and BMI, the causal impact of RA on hypothyroidism/hyperthyroidism and hypothyroidism on RA remained robust. However, there is no evidence to suggest a causal effect of hyperthyroidism on the risk of RA (P >0.05). Conclusion Univariate and multivariate MR analyses have validated the causal association between RA and hypothyroidism/hyperthyroidism. Hypothyroidism confirmed a causal relationship with RA when employed as an exposure variable, whereas no such relationship was found between hyperthyroidism and RA.
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Affiliation(s)
- Rui Lai
- School of Acupuncture and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xinmin Deng
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Xiaofeng Lv
- School of Acupuncture and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Qian Liu
- School of Clinical Medicine, Chengdu University of Traditional Chinese Medicine, Chengdu, China
| | - Kun Zhou
- The Third Clinical School of Zhejiang Chinese Medicine University, Hangzhou, China
| | - Dezhong Peng
- School of Acupuncture and Tuina, Chengdu University of Traditional Chinese Medicine, Chengdu, China
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10
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Jin L, Zhang Z, Pan P, Zhao Y, Zhou M, Liu L, Zhai Y, Wang H, Xu L, Mei D, Zhang H, Yang Y, Hua J, Zhang X, Zhang L. Low-dose ethanol consumption inhibits neutrophil extracellular traps formation to alleviate rheumatoid arthritis. Commun Biol 2023; 6:1088. [PMID: 37884797 PMCID: PMC10603044 DOI: 10.1038/s42003-023-05473-y] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2023] [Accepted: 10/17/2023] [Indexed: 10/28/2023] Open
Abstract
Rheumatoid arthritis (RA) is a chronic systemic autoimmune disease. Ethanol consumption has been reported to reduce morbidity in RA patients, but the mechanism behind it remains unclear. Our results showed that Muribaculaceae was predominant in the gut microbiota of mice after ethanol treatment, and the levels of microbiota metabolite acetate were increased. Acetate reduced arthritis severity in collagen-induced arthritis (CIA) mice, which was associated with a decrease in the articular neutrophils and the myeloperoxidase-deoxyribonucleic acid complex in serum. Meanwhile, in vitro experiments confirmed that acetate affected neutrophil activity by acting on G-protein-coupled receptor 43, which reduced endoplasmic reticulum stress in neutrophils and inhibited neutrophil extracellular traps formation. Furthermore, exogenous acetate reversed CIA mice with exacerbated gut microbial disruption, further confirming that the effect of gut microbial metabolite acetate on neutrophils in vivo is crucial for the immune regulation. Our findings illuminate the metabolic and cellular mechanisms of the gut-joint axis in the regulation of autoimmune arthritis, and may offer alternative avenues to replicate or induce the joint-protective benefits of ethanol without associated detrimental effects.
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Affiliation(s)
- Lin Jin
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, 230032, Anhui, China
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, 230032, Anhui, China
- Anti-inflammatory Immune Drugs Collaborative Innovation Center, Hefei, 230032, Anhui, China
| | - Ziwei Zhang
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, 230032, Anhui, China
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, 230032, Anhui, China
- Anti-inflammatory Immune Drugs Collaborative Innovation Center, Hefei, 230032, Anhui, China
| | - Pin Pan
- Department of orthopedics, The Second People's Hospital of Hefei, Hefei Hospital Affiliated to Anhui Medical University, Hefei, 230011, Anhui, China
| | - Yuchen Zhao
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, 230032, Anhui, China
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, 230032, Anhui, China
- Anti-inflammatory Immune Drugs Collaborative Innovation Center, Hefei, 230032, Anhui, China
| | - Mengqi Zhou
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, 230032, Anhui, China
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, 230032, Anhui, China
- Anti-inflammatory Immune Drugs Collaborative Innovation Center, Hefei, 230032, Anhui, China
| | - Lianghu Liu
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, 230032, Anhui, China
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, 230032, Anhui, China
- Anti-inflammatory Immune Drugs Collaborative Innovation Center, Hefei, 230032, Anhui, China
| | - Yuanfang Zhai
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, 230032, Anhui, China
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, 230032, Anhui, China
- Anti-inflammatory Immune Drugs Collaborative Innovation Center, Hefei, 230032, Anhui, China
| | - Han Wang
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, 230032, Anhui, China
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, 230032, Anhui, China
- Anti-inflammatory Immune Drugs Collaborative Innovation Center, Hefei, 230032, Anhui, China
| | - Li Xu
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, 230032, Anhui, China
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, 230032, Anhui, China
- Anti-inflammatory Immune Drugs Collaborative Innovation Center, Hefei, 230032, Anhui, China
| | - Dan Mei
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, 230032, Anhui, China
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, 230032, Anhui, China
- Anti-inflammatory Immune Drugs Collaborative Innovation Center, Hefei, 230032, Anhui, China
| | - Han Zhang
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, 230032, Anhui, China
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, 230032, Anhui, China
- Anti-inflammatory Immune Drugs Collaborative Innovation Center, Hefei, 230032, Anhui, China
| | - Yining Yang
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, 230032, Anhui, China
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, 230032, Anhui, China
- Anti-inflammatory Immune Drugs Collaborative Innovation Center, Hefei, 230032, Anhui, China
| | - Jinghan Hua
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, 230032, Anhui, China
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, 230032, Anhui, China
- Anti-inflammatory Immune Drugs Collaborative Innovation Center, Hefei, 230032, Anhui, China
| | - Xianzheng Zhang
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, 230032, Anhui, China.
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, 230032, Anhui, China.
- Anti-inflammatory Immune Drugs Collaborative Innovation Center, Hefei, 230032, Anhui, China.
| | - Lingling Zhang
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, 230032, Anhui, China.
- Key Laboratory of Anti-inflammatory and Immune Medicine, Ministry of Education, Hefei, 230032, Anhui, China.
- Anti-inflammatory Immune Drugs Collaborative Innovation Center, Hefei, 230032, Anhui, China.
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11
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Testino G, Pellicano R. COVID-19 and alcohol consumption: recommendations in the Omicron era. Minerva Gastroenterol (Torino) 2023; 69:423-432. [PMID: 35511656 DOI: 10.23736/s2724-5985.22.03194-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
In the early stages of the pandemic, the first reports began that alcohol consumption could increase the risk of becoming infected and worsening the prognosis disease. This is for two reasons: behavioral and socio-economic factors that characterize a part of this population can be the cause of viral spread and a direct or indirect negative action of ethanol on the immune system. The data used for the preparation of these recommendations are based on a detailed analysis of the scientific literature published before March 31, 2022 (Web of Science, Scopus, Google Scholar). Furthermore, in the process of developing this work, we consulted the guidelines/position papers of the Italian Society on Alcohol and of the World Health Organization. It has been confirmed that AC is in COVID-19 era a risky behavior and that AUD and substance use disorder (SUD) patients are certainly at greater risk of contracting infection and also of having a worse course. In light of what has been said, some recommendations can be made: correctly inform the general population that AC negatively interacts with COVID-19 infection; reducing the COVID-19 risk by advocating healthy lifestyle habits (smoke, diet, physical exercise, etc.) and preferential policies in population with comorbidities; implement actions that reduce the average consumption of alcohol by avoiding hazardous/harmful consumption. Abstention is better; identify alcohol consumption through a more in-depth alcohol history, using the AUDIT; AUDs patients are frail patients deserving a complete vaccination course; suggest a period of alcoholic abstention of at least thirty days before vaccination to be maintained for the following fifteen days; promoting health education campaigns for young people in order to promote vaccination culture and correct lifestyles.
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Affiliation(s)
- Gianni Testino
- Unit of Addiction and Hepatology/Alcohological Regional Centre, ASL3 c/o San Martino Polyclinic Hospital, Genoa, Italy -
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Zlatar L, Mahajan A, Muñoz-Becerra M, Weidner D, Bila G, Bilyy R, Titze J, Hoffmann MH, Schett G, Herrmann M, Steffen U, Muñoz LE, Knopf J. Suppression of neutrophils by sodium exacerbates oxidative stress and arthritis. Front Immunol 2023; 14:1174537. [PMID: 37600805 PMCID: PMC10433750 DOI: 10.3389/fimmu.2023.1174537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 07/14/2023] [Indexed: 08/22/2023] Open
Abstract
Introduction Typical Western diet, rich in salt, contributes to autoimmune disease development. However, conflicting reports exist about the effect of salt on neutrophil effector functions, also in the context of arthritis. Methods We investigated the effect of sodium chloride (NaCl) on neutrophil viability and functions in vitro, and in vivo employing the murine K/BxN-serum transfer arthritis (STA) model. Results and discussion The effects of NaCl and external reactive oxygen species (H2O2) were further examined on osteoclasts in vitro. Hypertonic sodium-rich media caused primary/secondary cell necrosis, altered the nuclear morphology, inhibited phagocytosis, degranulation, myeloperoxidase (MPO) peroxidation activity and neutrophil extracellular trap (NET) formation, while increasing total ROS production, mitochondrial ROS production, and neutrophil elastase (NE) activity. High salt diet (HSD) aggravated arthritis by increasing inflammation, bone erosion, and osteoclast differentiation, accompanied by increased NE expression and activity. Osteoclast differentiation was decreased with 25 mM NaCl or 100 nM H2O2 addition to isotonic media. In contrast to NaCl, external H2O2 had pro-resorptive effects in vitro. We postulate that in arthritis under HSD, increased bone erosion can be attributed to an enhanced oxidative milieu maintained by infiltrating neutrophils, rather than a direct effect of NaCl.
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Affiliation(s)
- Leticija Zlatar
- Department of Internal Medicine 3 – Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Aparna Mahajan
- Department of Internal Medicine 3 – Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Marco Muñoz-Becerra
- Department of Internal Medicine 3 – Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Daniela Weidner
- Department of Internal Medicine 3 – Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Galyna Bila
- Department of Histology, Cytology, Embryology, Danylo Halytsky Lviv National Medical University, Lviv, Ukraine
| | - Rostyslav Bilyy
- Department of Histology, Cytology, Embryology, Danylo Halytsky Lviv National Medical University, Lviv, Ukraine
| | - Jens Titze
- Division of Nephrology and Hypertension, Universitätsklinikum Erlangen, Erlangen, Germany
- Programme in Cardiovascular and Metabolic Disorders, Duke-NUS Medical School, Singapore, Singapore
| | - Markus H. Hoffmann
- Department of Dermatology, Allergology, and Venereology, University of Lübeck, Lübeck, Germany
| | - Georg Schett
- Department of Internal Medicine 3 – Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Martin Herrmann
- Department of Internal Medicine 3 – Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Ulrike Steffen
- Department of Internal Medicine 3 – Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Luis E. Muñoz
- Department of Internal Medicine 3 – Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Jasmin Knopf
- Department of Internal Medicine 3 – Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum für Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
- Department of Pediatric Surgery, University Medical Center Mannheim, University of Heidelberg, Mannheim, Germany
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Azizov V, Hübner M, Frech M, Hofmann J, Kubankova M, Lapuente D, Tenbusch M, Guck J, Schett G, Zaiss MM. Alcohol-sourced acetate impairs T cell function by promoting cortactin acetylation. iScience 2023; 26:107230. [PMID: 37485352 PMCID: PMC10362326 DOI: 10.1016/j.isci.2023.107230] [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: 10/18/2022] [Revised: 02/28/2023] [Accepted: 06/23/2023] [Indexed: 07/25/2023] Open
Abstract
Alcohol is among the most widely consumed dietary substances. Excessive alcohol consumption damages the liver, heart, and brain. Alcohol also has strong immunoregulatory properties. Here, we report how alcohol impairs T cell function via acetylation of cortactin, a protein that binds filamentous actin and facilitates branching. Upon alcohol consumption, acetate, the metabolite of alcohol, accumulates in lymphoid organs. T cells exposed to acetate, exhibit increased acetylation of cortactin. Acetylation of cortactin inhibits filamentous actin binding and hence reduces T cell migration, immune synapse formation and activation. While mutated, acetylation-resistant cortactin rescues the acetate-induced inhibition of T cell migration, primary mouse cortactin knockout T cells exhibited impaired migration. Acetate-induced cytoskeletal changes effectively inhibited activation, proliferation, and immune synapse formation in T cells in vitro and in vivo in an influenza infection model in mice. Together these findings reveal cortactin as a possible target for mitigation of T cell driven autoimmune diseases.
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Affiliation(s)
- Vugar Azizov
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Michel Hübner
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Michael Frech
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Jörg Hofmann
- Division of Biochemistry, Department of Biology, Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - Marketa Kubankova
- Max Planck Institute for the Science of Light & Max Planck Zentrum für Physik und Medizin, Erlangen, Germany
| | - Dennis Lapuente
- Institute of Clinical and Molecular Virology, Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Matthias Tenbusch
- Institute of Clinical and Molecular Virology, Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Jochen Guck
- Max Planck Institute for the Science of Light & Max Planck Zentrum für Physik und Medizin, Erlangen, Germany
| | - Georg Schett
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Mario M. Zaiss
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
- Deutsches Zentrum Immuntherapie (DZI), Friedrich-Alexander-University Erlangen-Nürnberg and Universitätsklinikum Erlangen, Erlangen, Germany
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Alfredsson L, Klareskog L, Hedström AK. Disease Activity and Health-Related Quality of Life Among Patients With Rheumatoid Arthritis With Different Alcohol Consumption Habits. Arthritis Rheumatol 2023; 75:872-878. [PMID: 36629408 DOI: 10.1002/art.42442] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2022] [Revised: 12/16/2022] [Accepted: 01/05/2023] [Indexed: 01/12/2023]
Abstract
OBJECTIVE Multiple studies have found a relationship between alcohol consumption and disease activity in rheumatoid arthritis (RA), although reverse causation has been suggested to explain the association. We aimed to study the relationship between alcohol consumption and disease activity, disease progression, and health-related quality of life in patients with RA. METHODS We followed up 1,228 patients with newly diagnosed RA from a population-based case-control study, Epidemiological Investigation of Rheumatoid Arthritis (EIRA). Drinkers and non-drinkers were compared to evaluate risk of unfavorable outcomes regarding disease activity and health-related quality of life. Odds ratios with 95% confidence intervals were calculated using logistic regression models. RESULTS Non-drinkers at baseline had higher disease activity and estimated their pain as more severe compared to drinkers. At 1 year of follow-up, non-drinkers reported higher swollen and tender joint counts and experienced more pain and fatigue, lower global health scores, and lower health-related quality of life. The inverse relationship between alcohol consumption and RA-specific outcomes was also observed when comparing drinkers and non-drinkers who had not changed their alcohol consumption habits at or after the year of disease onset. Those who stopped drinking postbaseline experienced higher disease activity, more pain, and lower health-related quality of life at 1 year of follow-up, compared to drinkers, although there was no difference in disease activity at baseline between drinkers who continued versus discontinued drinking. Our findings argue against bias due to reverse causation. CONCLUSION Alcohol consumption was associated with lower disease activity and higher health-related quality of life in RA patients in a dose-dependent manner.
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Affiliation(s)
- Lars Alfredsson
- Institute of Environmental Medicine, Karolinska Institutet, and Centre for Occupational and Environmental Medicine, Region Stockholm, Stockholm, Sweden
| | - Lars Klareskog
- Division of Rheumatology, Department of Medicine, Karolinska Institutet at Karolinska University Hospital, Solna, Stockholm, Sweden
| | - Anna Karin Hedström
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
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Zhang D, Liu Z, Zhou Y, Tang L, Hou J, Li Y. Alcohol induces intrahepatic humoral immunity-related suppression and delays the clearance of HBV infection. Int Immunopharmacol 2023. [DOI: 10.1016/j.intimp.2023.109811] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
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16
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Zhang C, Wang XY, Zuo JL, Wang XF, Feng XW, Zhang B, Li YT, Yi CH, Zhang P, Ma XC, Chen ZM, Ma Y, Han JH, Tao BR, Zhang R, Wang TQ, Tong L, Gu W, Wang SY, Zheng XF, Yuan WK, Kan ZJ, Fan J, Hu XY, Li J, Zhang C, Chen JH. Localization and density of tertiary lymphoid structures associate with molecular subtype and clinical outcome in colorectal cancer liver metastases. J Immunother Cancer 2023; 11:jitc-2022-006425. [PMID: 36759015 PMCID: PMC9923349 DOI: 10.1136/jitc-2022-006425] [Citation(s) in RCA: 13] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/18/2023] [Indexed: 02/11/2023] Open
Abstract
BACKGROUND Tertiary lymphoid structures (TLSs) have been proposed to assess the prognosis of patients with cancer. Here, we investigated the prognostic value and relevant mechanisms of TLSs in colorectal cancer liver metastases (CRCLM). METHODS 603 patients with CRCLM treated by surgical resection from three cancer centers were included. The TLSs were categorized according to their anatomic subregions and quantified, and a TLS scoring system was established for intratumor region (T score) and peritumor region (P score). Differences in relapse-free survival (RFS) and overall survival (OS) between groups were determined. Multiplex immunohistochemical staining (mIHC) was used to determine the cellular composition of TLSs in 40 CRCLM patients. RESULTS T score positively correlated with superior prognosis, while P score negatively associated with poor survival (all p<0.05). Meanwhile, T score was positively associated with specific mutation subtype of KRAS. Furthermore, TLSs enrichment gene expression was significantly associated with survival and transcriptomic subtypes of CRCLM. Subsequently, mIHC showed that the densities of Treg cells, M2 macrophages and Tfh cells were significantly higher in intratumor TLSs than in peritumor TLSs (p=0.029, p=0.047 and p=0.041, respectively), and the frequencies of Treg cells and M2 macrophages were positively correlated with P score, while the frequencies of Tfh cells were positively associated with T scores in intratumor TLSs (all p<0.05). Next, based on the distribution and abundance of TLSs, an Immune Score combining T score and P score was established which categorized CRCLM patients into four immune classes with different prognosis (all p<0.05). Among them, patients with higher immune class have more favorable prognoses. The C-index of Immune Class for RFS and OS was higher than Clinical Risk Score statistically. These results were also confirmed by the other two validation cohorts. CONCLUSIONS The distribution and abundance of TLSs is significantly associated with RFS and OS of CRCLM patients, and a novel immune class was proposed for predicting the prognosis of CRCLM patients.
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Affiliation(s)
- Chong Zhang
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Xiang-Yu Wang
- Department of General Surgery, Huashan Hospital Fudan University, Shanghai, China
| | - Jie-Liang Zuo
- Department of General Surgery, Shanghai Tenth People's Hospital of Tongji University, Shanghai, China
| | - Xue-Fu Wang
- School of Pharmacy, Anhui Medical University, Hefei, China,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Medical University, Hefei, Anhui, China
| | - Xiao-Wen Feng
- School of Pharmacy, Anhui Medical University, Hefei, China,Inflammation and Immune Mediated Diseases Laboratory of Anhui Province, Anhui Medical University, Hefei, Anhui, China
| | - Bo Zhang
- Department of General Surgery, Huashan Hospital Fudan University, Shanghai, China
| | - Yi-Tong Li
- Department of General Surgery, Huashan Hospital Fudan University, Shanghai, China
| | - Chen-He Yi
- Department of General Surgery, Huashan Hospital Fudan University, Shanghai, China
| | - Peng Zhang
- Department of General Surgery, Huashan Hospital Fudan University, Shanghai, China
| | - Xiao-Chen Ma
- Department of General Surgery, Huashan Hospital Fudan University, Shanghai, China
| | - Zhen-Mei Chen
- Department of General Surgery, Huashan Hospital Fudan University, Shanghai, China
| | - Yue Ma
- Department of General Surgery, Huashan Hospital Fudan University, Shanghai, China
| | - Jia-Hao Han
- Department of General Surgery, Huashan Hospital Fudan University, Shanghai, China
| | - Bao-Rui Tao
- Department of General Surgery, Huashan Hospital Fudan University, Shanghai, China
| | - Rui Zhang
- Department of General Surgery, Huashan Hospital Fudan University, Shanghai, China
| | - Tian-Qi Wang
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Li Tong
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Wang Gu
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Si-Yu Wang
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Xiao-Fei Zheng
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Wen-Kang Yuan
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Zi-Jie Kan
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Jie Fan
- Department of Pathology, Huashan Hospital Fudan University, Shanghai, China
| | - Xiang-Yang Hu
- Department of Pathology, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Jun Li
- Department of General Surgery, Shanghai Tenth People's Hospital of Tongji University, Shanghai, China
| | - Chao Zhang
- Department of General Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Jin-Hong Chen
- Department of General Surgery, Huashan Hospital Fudan University, Shanghai, China
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Qi J, Liu C, Bai Z, Li X, Yao G. T follicular helper cells and T follicular regulatory cells in autoimmune diseases. Front Immunol 2023; 14:1178792. [PMID: 37187757 PMCID: PMC10175690 DOI: 10.3389/fimmu.2023.1178792] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2023] [Accepted: 04/13/2023] [Indexed: 05/17/2023] Open
Abstract
T follicular helper (Tfh) cells are heterogeneous and mainly characterized by expressing surface markers CXCR5, ICOS, and PD-1; cytokine IL-21; and transcription factor Bcl6. They are crucial for B-cell differentiation into long-lived plasma cells and high-affinity antibody production. T follicular regulatory (Tfr) cells were described to express markers of conventional T regulatory (Treg) cells and Tfh cells and were able to suppress Tfh-cell and B-cell responses. Evidence has revealed that the dysregulation of Tfh and Tfr cells is positively associated with the pathogenic processes of autoimmune diseases. Herein, we briefly introduce the phenotype, differentiation, and function of Tfh and Tfr cells, and review their potential roles in autoimmune diseases. In addition, we discuss perspectives to develop novel therapies targeting Tfh/Tfr balance.
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Affiliation(s)
- Jingjing Qi
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Dalian, Liaoning, China
- *Correspondence: Genhong Yao, ; Jingjing Qi,
| | - Chang Liu
- Department of Rheumatology and Immunology, Dalian Municipal Central Hospital, Dalian, Liaoning, China
| | - Ziran Bai
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Dalian, Liaoning, China
| | - Xia Li
- Department of Immunology, College of Basic Medical Science, Dalian Medical University, Dalian, Liaoning, China
| | - Genhong Yao
- Department of Rheumatology and Immunology, The Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing, Jiangsu, China
- *Correspondence: Genhong Yao, ; Jingjing Qi,
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Chen C, Wang P, Zhang RD, Fang Y, Jiang LQ, Fang X, Zhao Y, Wang DG, Ni J, Pan HF. Mendelian randomization as a tool to gain insights into the mosaic causes of autoimmune diseases. Clin Exp Rheumatol 2022; 21:103210. [PMID: 36273526 DOI: 10.1016/j.autrev.2022.103210] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2022] [Revised: 10/06/2022] [Accepted: 10/11/2022] [Indexed: 12/14/2022]
Abstract
Autoimmune diseases (ADs) are a broad range of disorders which are characterized by long-term inflammation and tissue damage arising from an immune response against one's own tissues. It is now widely accepted that the causes of ADs include environmental factors, genetic susceptibility and immune dysregulation. However, the exact etiology of ADs has not been fully elucidated to date. Because observational studies are plagued by confounding factors and reverse causality, no firm conclusions can be drawn about the etiology of ADs. Over the years, Mendelian randomization (MR) analysis has come into focus, offering unique perspectives and insights into the etiology of ADs and promising the discovery of potential therapeutic interventions. In MR analysis, genetic variation (alleles are randomly dispensed during meiosis, usually irrespective of environmental or lifestyle factors) is used instead of modifiable exposure to explore the link between exposure factors and disease or other outcomes. Therefore, MR analysis can provide a valuable method for exploring the causal relationship between different risk factors and ADs when its inherent assumptions and limitations are fully considered. This review summarized the recent findings of MR in major ADs, including systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), multiple sclerosis (MS), and type 1 diabetes mellitus (T1DM), focused on the effects of different risk factors on ADs risks. In addition, we also discussed the opportunities and challenges of MR methods in ADs research.
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Affiliation(s)
- Cong Chen
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei 230032, Anhui, China; Institute of Kidney Disease, Inflammation & Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, China
| | - Peng Wang
- Institute of Kidney Disease, Inflammation & Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, China; Teaching Center for Preventive Medicine, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei 230032, Anhui, China
| | - Ruo-Di Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei 230032, Anhui, China; Institute of Kidney Disease, Inflammation & Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, China
| | - Yang Fang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei 230032, Anhui, China; Institute of Kidney Disease, Inflammation & Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, China
| | - Ling-Qiong Jiang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei 230032, Anhui, China; Institute of Kidney Disease, Inflammation & Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, China
| | - Xi Fang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei 230032, Anhui, China; Institute of Kidney Disease, Inflammation & Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, China
| | - Yan Zhao
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei 230032, Anhui, China; Institute of Kidney Disease, Inflammation & Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, China
| | - De-Guang Wang
- Institute of Kidney Disease, Inflammation & Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, China; Department of Nephrology, The Second Hospital of Anhui Medical University, Hefei, China.
| | - Jing Ni
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei 230032, Anhui, China; Institute of Kidney Disease, Inflammation & Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, China.
| | - Hai-Feng Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei 230032, Anhui, China; Institute of Kidney Disease, Inflammation & Immunity Mediated Diseases, The Second Hospital of Anhui Medical University, China.
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Melamed E, Palmer JL, Fonken C. Advantages and limitations of experimental autoimmune encephalomyelitis in breaking down the role of the gut microbiome in multiple sclerosis. Front Mol Neurosci 2022; 15:1019877. [PMID: 36407764 PMCID: PMC9672668 DOI: 10.3389/fnmol.2022.1019877] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Accepted: 10/11/2022] [Indexed: 08/22/2023] Open
Abstract
Since the first model of experimental autoimmune encephalomyelitis (EAE) was introduced almost a century ago, there has been an ongoing scientific debate about the risks and benefits of using EAE as a model of multiple sclerosis (MS). While there are notable limitations of translating EAE studies directly to human patients, EAE continues to be the most widely used model of MS, and EAE studies have contributed to multiple key breakthroughs in our understanding of MS pathogenesis and discovery of MS therapeutics. In addition, insights from EAE have led to a better understanding of modifiable environmental factors that can influence MS initiation and progression. In this review, we discuss how MS patient and EAE studies compare in our learning about the role of gut microbiome, diet, alcohol, probiotics, antibiotics, and fecal microbiome transplant in neuroinflammation. Ultimately, the combination of rigorous EAE animal studies, novel bioinformatic approaches, use of human cell lines, and implementation of well-powered, age- and sex-matched randomized controlled MS patient trials will be essential for improving MS patient outcomes and developing novel MS therapeutics to prevent and revert MS disease progression.
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Affiliation(s)
- Esther Melamed
- Department of Neurology, Dell Medical School, University of Texas at Austin, Austin, TX, United States
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Finckh A, Gilbert B, Hodkinson B, Bae SC, Thomas R, Deane KD, Alpizar-Rodriguez D, Lauper K. Global epidemiology of rheumatoid arthritis. Nat Rev Rheumatol 2022; 18:591-602. [PMID: 36068354 DOI: 10.1038/s41584-022-00827-y] [Citation(s) in RCA: 63] [Impact Index Per Article: 31.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/03/2022] [Indexed: 11/09/2022]
Abstract
Rheumatoid arthritis (RA) is a systemic autoimmune disease that predominantly affects the joints. The prevalence of RA varies globally, with generally a higher prevalence in industrialized countries, which may be explained by exposures to environmental risk factors, but also by genetic factors, differing demographics and under-reporting in other parts of the world. Over the past three decades, strong trends of the declining severity of RA probably reflect changes in treatment paradigms and overall better management of the disease. Other trends include increasing RA prevalence. Common risk factors for RA include both modifiable lifestyle-associated variables and non-modifiable features, such as genetics and sex. A better understanding of the natural history of RA, and of the factors that contribute to the development of RA in specific populations, might lead to the introduction of specific prevention strategies for this debilitating disease.
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Affiliation(s)
- Axel Finckh
- Division of Rheumatology, Department of Medicine, Geneva University Hospital (HUG), Geneva, Switzerland.
| | - Benoît Gilbert
- Division of Rheumatology, Department of Medicine, Geneva University Hospital (HUG), Geneva, Switzerland
| | - Bridget Hodkinson
- Division of Rheumatology, Department of Medicine, University of Cape Town and Groote Schuur Hospital, Cape Town, South Africa
| | - Sang-Cheol Bae
- Department of Rheumatology, Hanyang University Hospital for Rheumatic Diseases, Hanyang University Institute for Rheumatology and Hanyang University Institute of Bioscience and Biotechnology, Seoul, Republic of Korea
| | - Ranjeny Thomas
- The University of Queensland Diamantina Institute, The University of Queensland, Princess Alexandra Hospital, Woolloongabba, Queensland, Australia
| | - Kevin D Deane
- University of Colorado Anschutz Medical Campus, Aurora, CO, USA
| | | | - Kim Lauper
- Division of Rheumatology, Department of Medicine, Geneva University Hospital (HUG), Geneva, Switzerland.,Centre for Epidemiology versus Arthritis, Centre for Musculoskeletal Research, University of Manchester, Manchester, UK
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21
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Riaz F, Wei P, Pan F. Fine-tuning of regulatory T cells is indispensable for the metabolic steatosis-related hepatocellular carcinoma: A review. Front Cell Dev Biol 2022; 10:949603. [PMID: 35912096 PMCID: PMC9337771 DOI: 10.3389/fcell.2022.949603] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2022] [Accepted: 06/28/2022] [Indexed: 12/12/2022] Open
Abstract
The majority of chronic hepatic diseases are caused by nutritional imbalance. These nutritional inequities include excessive intake of alcohol and fat, which causes alcoholic liver disease (ALD) and non-alcoholic fatty liver disease (NAFLD), respectively. The pathogenesis of hepatic diseases is mainly dependent on oxidative stress, autophagy, DNA damage, and gut microbiota and their metabolites. These factors influence the normal physiology of the liver and impact the hepatic microenvironment. The hepatic microenvironment contains several immune cells and inflammatory cytokines which interact with each other and contribute to the progression of chronic hepatic diseases. Among these immune cells, Foxp3+ CD4+ regulatory T cells (Tregs) are the crucial subset of CD4+ T cells that create an immunosuppressive environment. This review emphasizes the function of Tregs in the pathogenesis of ALD and NAFLD and their role in the progression of NAFLD-associated hepatocellular carcinoma (HCC). Briefly, Tregs establish an immunosuppressive landscape in the liver by interacting with the innate immune cells and gut microbiota and their metabolites. Meanwhile, with the advancement of steatosis, these Tregs inhibit the proliferation, activation and functions of other cytotoxic T cells and support the progression of simple steatosis to HCC. Briefly, it can be suggested that targeting Tregs can act as a favourable prognostic indicator by modulating steatosis and insulin resistance during the pathogenesis of hepatic steatosis and NAFLD-associated HCC.
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Affiliation(s)
- Farooq Riaz
- Center for Cancer Immunology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - Ping Wei
- Center for Cancer Immunology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- Chongqing Key Laboratory of Pediatrics, Department of otolaryngology, Children’s Hospital of Chongqing Medical University, National Clinical Research Center for Child Health and Disorders, Ministry of Education Key Laboratory of Child Development and Disorders, Chongqing, China
| | - Fan Pan
- Center for Cancer Immunology, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
- *Correspondence: Fan Pan,
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22
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Schälter F, Frech M, Dürholz K, Lucas S, Sarter K, Lebon L, Esser-von Bieren J, Dubey LK, Voehringer D, Schett G, Harris NL, Zaiss MM. Acetate, a metabolic product of Heligmosomoides polygyrus, facilitates intestinal epithelial barrier breakdown in a FFAR2-dependent manner. Int J Parasitol 2022; 52:591-601. [PMID: 35671792 DOI: 10.1016/j.ijpara.2022.04.004] [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: 01/27/2022] [Revised: 04/11/2022] [Accepted: 04/11/2022] [Indexed: 11/05/2022]
Abstract
Approximately 2 billion people worldwide and a significant part of the domestic livestock are infected with soil-transmitted helminths, of which many establish chronic infections causing substantial economic and welfare burdens. Beside intensive research on helminth-triggered mucosal and systemic immune responses, the local mechanism that enables infective larvae to cross the intestinal epithelial barrier and invade mucosal tissue remains poorly addressed. Here, we show that Heligmosomoides polygyrus infective L3s secrete acetate and that acetate potentially facilitates paracellular epithelial tissue invasion by changed epithelial tight junction claudin expression. In vitro, impedance-based real-time epithelial cell line barrier measurements together with ex vivo functional permeability assays in intestinal organoid cultures revealed that acetate decreased intercellular barrier function via the G-protein coupled free fatty acid receptor 2 (FFAR2, GPR43). In vivo validation experiments in FFAR2-/- mice showed lower H. polygyrus burdens, whereas oral acetate-treated C57BL/6 wild type mice showed higher burdens. These data suggest that locally secreted acetate - as a metabolic product of the energy metabolism of H. polygyrus L3s - provides a significant advantage to the parasite in crossing the intestinal epithelial barrier and invading mucosal tissues. This is the first and a rate-limiting step for helminths to establish chronic infections in their hosts and if modulated could have profound consequences for their life cycle.
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Affiliation(s)
- Fabian Schälter
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Michael Frech
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Kerstin Dürholz
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Sébastien Lucas
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Kerstin Sarter
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Luc Lebon
- Global Health Institute, School of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH-1015, Switzerland
| | - Julia Esser-von Bieren
- Global Health Institute, School of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH-1015, Switzerland; Center of Allergy and Environment, Technical University of Munich and Helmholtz Zentrum München, Munich, Germany
| | - Lalit K Dubey
- Global Health Institute, School of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH-1015, Switzerland; Centre of Microvascular Research, William Harvey Research Institute, Barts and The London School of Medicine and Dentistry, Queen Mary University of London, London EC1M 6BQ, United Kingdom
| | - David Voehringer
- Department of Infection Biology, University Hospital Erlangen and Friedrich-Alexander University Erlangen-Nürnberg (FAU), Erlangen, Germany
| | - Georg Schett
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany
| | - Nicola L Harris
- Global Health Institute, School of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH-1015, Switzerland; Department of Immunology, Monash University, Clayton, Victoria, Australia
| | - Mario M Zaiss
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, Erlangen, Germany; Global Health Institute, School of Life Sciences, École Polytechnique Fédérale de Lausanne (EPFL), Lausanne, CH-1015, Switzerland.
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23
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McTernan PM, Levitt DE, Welsh DA, Simon L, Siggins RW, Molina PE. Alcohol Impairs Immunometabolism and Promotes Naïve T Cell Differentiation to Pro-Inflammatory Th1 CD4 + T Cells. Front Immunol 2022; 13:839390. [PMID: 35634279 PMCID: PMC9133564 DOI: 10.3389/fimmu.2022.839390] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2021] [Accepted: 04/19/2022] [Indexed: 12/30/2022] Open
Abstract
CD4+ T cell differentiation to pro-inflammatory and immunosuppressive subsets depends on immunometabolism. Pro-inflammatory CD4+ subsets rely on glycolysis, while immunosuppressive Treg cells require functional mitochondria for their differentiation and function. Previous pre-clinical studies have shown that ethanol (EtOH) administration increases pro-inflammatory CD4+ T cell subsets; whether this shift in immunophenotype is linked to alterations in CD4+ T cell metabolism had not been previously examined. The objective of this study was to determine whether ethanol alters CD4+ immunometabolism, and whether this affects CD4+ T cell differentiation. Naïve human CD4+ T cells were plated on anti-CD3 coated plates with soluble anti-CD28, and differentiated with IL-12 in the presence of ethanol (0 and 50 mM) for 3 days. Both Tbet-expressing (Th1) and FOXP3-expressing (Treg) CD4+ T cells increased after differentiation. Ethanol dysregulated CD4+ T cell differentiation by increasing Th1 and decreasing Treg CD4+ T cell subsets. Ethanol increased glycolysis and impaired oxidative phosphorylation in differentiated CD4+ T cells. Moreover, the glycolytic inhibitor 2-deoxyglucose (2-DG) prevented the ethanol-mediated increase in Tbet-expressing CD4+ T cells but did not attenuate the decrease in FOXP3 expression in differentiated CD4+ T cells. Ethanol increased Treg mitochondrial volume and altered expression of genes implicated in mitophagy and autophagosome formation (PINK1 and ATG7). These results suggest that ethanol impairs CD4+ T cell immunometabolism and disrupts mitochondrial repair processes as it promotes CD4+ T cell differentiation to a pro-inflammatory phenotype.
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Affiliation(s)
- Patrick M. McTernan
- Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, LA, United States
- Comprehensive Alcohol-HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Danielle E. Levitt
- Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, LA, United States
- Comprehensive Alcohol-HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - David A. Welsh
- Comprehensive Alcohol-HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, LA, United States
- Department of Medicine, Section of Pulmonary/Critical Care Medicine, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Liz Simon
- Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, LA, United States
- Comprehensive Alcohol-HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Robert W. Siggins
- Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, LA, United States
- Comprehensive Alcohol-HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, LA, United States
| | - Patricia E. Molina
- Department of Physiology, Louisiana State University Health Sciences Center, New Orleans, LA, United States
- Comprehensive Alcohol-HIV/AIDS Research Center, Louisiana State University Health Sciences Center, New Orleans, LA, United States
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24
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Alcohol drinking delays the rate of sputum smear conversion among DR-TB patients in northwest Ethiopia; A retrospective follow-up study. PLoS One 2022; 17:e0264852. [PMID: 35263367 PMCID: PMC8906643 DOI: 10.1371/journal.pone.0264852] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2021] [Accepted: 02/17/2022] [Indexed: 01/22/2023] Open
Abstract
Background Sputum smear microscopy is simple and feasible technique to assess the presence of acid-fast bacilli (AFB) in the respiratory tract of patients with Drug Resistance Tuberculosis (DR-TB). Conversion of sputum smear from positive to negative is considered as an interim indicator of efficacy of anti-tubercular treatment and the program effectiveness. Although evidences regarding the factors affecting the sputum smear conversion are available on drug susceptible TB patients, there is dearth of literature about smear conversion and its predictors among DR-TB patients in the study setting. Hence, shortening the time to sputum smear conversion is desirable to reduce the likelihood of mycobacterial transmission. This study has therefore aimed at estimating the median time of sputum smear conversion and to determine its predictors. Methods This was a retrospective follow-up study conducted among DR-TB patients registered for second-line anti-TB treatment in the four hospitals of Amhara regional state, Northwest Ethiopia. Of all patients enrolled to DR-TB treatment in the study setting from 2010 to 2017, 436 patients have been include for this study who fulfilled the eligibility criteria. The cox proportional hazard model was fitted and the adjusted hazard ratio (AHR) with 95% confidence interval (CI) and p <0.05 was used to declare statistical significance of the variables associated with the smear conversion. Results From the 436 patients with sputum smear positive at baseline, 351 (80.5%) converted sputum smear at a median time of 48 (IQR: 30–78) days. The median time of smear conversion was 59 (95% CI: 42, 74) and 44 (95% CI: 37, 54) days among patients who had and had no history of alcohol drinking, respectively. Similarly, the median time to smear conversion was 61 (95% CI: 36, 73) days among patients with comorbid conditions and 44 (95% CI: 38, 54) days among patients with no comorbid conditions. In the multi-variable analysis, only history of alcohol consumption [AHR = 0.66 (0.50, 0.87)] was found to delay significantly the rate of sputum smear conversion. Conclusion In our study, the median time of sputum smear conversion was with in the expected time frame of conversion. History of alcohol consumption was found to delay significantly the rate of sputum smear conversion. The DR-TB patients are strongly advised to avoid alcohol consumption.
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Abstract
Alcohol is well known for promoting systemic inflammation and aggravating multiple chronic health conditions. Thus, alcohol may also be expected to serve as a risk factor in autoimmune diseases. However, emerging data from human and animal studies suggest that alcohol may in fact be protective in autoimmune diseases. These studies point toward alcohol's complex dose-dependent relationship in autoimmune diseases as well as potential modulation by duration and type of alcohol consumption, cultural background and sex. In this review, we will explore alcohol's pro- and anti-inflammatory properties in human and animal autoimmune diseases, including autoimmune diabetes, thyroid disease, systemic lupus erythematosus, rheumatoid arthritis, experimental autoimmune encephalomyelitis and multiple sclerosis. We will also discuss potential mechanisms of alcohol's anti-inflammatory effects mediated by the gut microbiome.
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Affiliation(s)
- Blaine Caslin
- Department of Neurology, Dell Medical School, The University of Texas at Austin, Austin, United States
| | - Kailey Mohler
- Department of Neurology, Dell Medical School, The University of Texas at Austin, Austin, United States
| | - Shreya Thiagarajan
- Department of Neurology, Dell Medical School, The University of Texas at Austin, Austin, United States
| | - Esther Melamed
- Department of Neurology, Dell Medical School, The University of Texas at Austin, Austin, United States,CONTACT Esther Melamed Department of Neurology, Dell Medical School, The University of Texas at Austin, Austin, United States
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26
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Yu XH, Bo L, Cao RR, Yang YQ, He P, Lei SF, Deng FY. Systematic Evaluation of Rheumatoid Arthritis Risk by Integrating Lifestyle Factors and Genetic Risk Scores. Front Immunol 2022; 13:901223. [PMID: 35874719 PMCID: PMC9299428 DOI: 10.3389/fimmu.2022.901223] [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: 03/21/2022] [Accepted: 06/07/2022] [Indexed: 11/13/2022] Open
Abstract
Background Effective identification of high-risk rheumatoid arthritis (RA) individuals is still a challenge. Whether the combined effects of multiple previously reported genetic loci together with lifestyle factors can improve the prediction of RA risk remains unclear. Methods Based on previously reported results and a large-scale Biobank dataset, we constructed a polygenic risk score (PRS) for RA to evaluate the combined effects of the previously identified genetic loci in both case-control and prospective cohorts. We then evaluated the relationships between several lifestyles and RA risk and determined healthy lifestyles. Then, the joint effects of healthy lifestyles and genetic risk on RA risk were evaluated. Results We found a positive association between PRS and RA risk (OR = 1.407, 95% confidence interval (CI) = 1.354~1.463; HR = 1.316, 95% CI = 1.257~1.377). Compared with the low genetic risk group, the group with intermediate or high genetic risk had a higher risk (OR = 1.347, 95% CI = 1.213~1.496; HR = 1.246, 95% CI = 1.108~1.400) (OR = 2.169, 95% CI = 1.946~2.417; HR = 1.762, 95% CI = 1.557~1.995). After adjusting for covariates, we found protective effects of three lifestyles (no current smoking, regular physical activity, and moderate body mass index) on RA risk and defined them as healthy lifestyles. Compared with the individuals with low genetic risks and favorable lifestyles, those with high genetic risks and unfavorable lifestyles had as high as OR of 4.637 (95%CI = 3.767~5.708) and HR of 3.532 (95%CI = 2.799~4.458). Conclusions In conclusion, the integration of PRS and lifestyles can improve the prediction of RA risk. High RA risk can be alleviated by adopting healthy lifestyles but aggravated by adopting unfavorable lifestyles.
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Affiliation(s)
- Xing-Hao Yu
- Center for Genetic Epidemiology and Genomics, School of Public Health, Medical College of Soochow University, Suzhou, China.,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, China
| | - Lin Bo
- Department of Rheumatology, The Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Rong-Rong Cao
- Center for Genetic Epidemiology and Genomics, School of Public Health, Medical College of Soochow University, Suzhou, China.,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, China
| | - Yi-Qun Yang
- Center for Genetic Epidemiology and Genomics, School of Public Health, Medical College of Soochow University, Suzhou, China.,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, China
| | - Pei He
- Center for Genetic Epidemiology and Genomics, School of Public Health, Medical College of Soochow University, Suzhou, China.,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, China
| | - Shu-Feng Lei
- Center for Genetic Epidemiology and Genomics, School of Public Health, Medical College of Soochow University, Suzhou, China.,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, China
| | - Fei-Yan Deng
- Center for Genetic Epidemiology and Genomics, School of Public Health, Medical College of Soochow University, Suzhou, China.,Jiangsu Key Laboratory of Preventive and Translational Medicine for Geriatric Diseases, Soochow University, Suzhou, China
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27
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Hedström AK, Olsson T, Alfredsson L. The increased risk of multiple sclerosis associated with HLA-DRB1*15:01 and smoking is modified by alcohol consumption. Sci Rep 2021; 11:21237. [PMID: 34707149 PMCID: PMC8551162 DOI: 10.1038/s41598-021-00578-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 09/21/2021] [Indexed: 11/09/2022] Open
Abstract
Previous studies have observed an inverse association between alcohol consumption and multiple sclerosis (MS) risk. We aimed to investigate possible interactions between alcohol consumption, MS-associated human leukocyte antigen (HLA) genes and smoking regarding MS risk. We used a Swedish population-based case-control study (2059 incident cases, 2887 controls) matched by age, sex, and residential area. Subjects with different genotypes and alcohol consumption habits were compared regarding MS risk, by calculating odds ratios with 95% confidence intervals using logistic regression models. Interaction on the additive scale between non-drinking and both genotype and smoking were assessed by calculating the attributable proportion due to interaction (AP). There was a dose-dependent inverse association between alcohol consumption and MS risk (p for trend < 0.0001). A potentiating effect was observed between non-drinking and presence of DRB1*15:01 (AP 0.3, 95% CI 0.2-0.5) which was of similar magnitude irrespective of smoking habits. Non-drinking also interacted with smoking to increase MS risk (AP 0.2, 95% CI 0.06-0.4). Non-drinking interacts with DRB1*15:01 and smoking to increase the risk of MS. Better understanding of the mechanisms behind our findings may help to define ways to achieve protection against MS by other means than alcohol consumption.
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Affiliation(s)
- Anna Karin Hedström
- Department of Clinical Neuroscience, K8, Karolinska Institutet, 171 77, Stockholm, Sweden.
| | - Tomas Olsson
- Neuroimmunology Unit, Department of Clinical Neuroscience and Center for Molecular Medicine, Karolinska Institutet at Karolinska University Hospital, Solna, Sweden
| | - Lars Alfredsson
- Department of Clinical Neuroscience and Institute of Environmental Medicine, Karolinska Institutet, Stockholm, Sweden
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Hong J, Qu Z, Ji X, Li C, Zhang G, Jin C, Wang J, Zhang Y, Shen Y, Meng J, Zhou C, Fang C, Wang W, Yan S. Genetic Associations Between IL-6 and the Development of Autoimmune Arthritis Are Gender-Specific. Front Immunol 2021; 12:707617. [PMID: 34539640 PMCID: PMC8447937 DOI: 10.3389/fimmu.2021.707617] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2021] [Accepted: 08/11/2021] [Indexed: 12/20/2022] Open
Abstract
Objectives To find out the genetic association between IL6 and autoimmune arthritis. Methods We performed a two-sample Mendelian randomization (MR) study using multiple genome-wide association studies (GWAS) datasets. Furthermore, a sex-stratified MR study was performed to identify sexual dimorphism in the association between IL6 and autoimmune arthritis. Then, LocusZoom plots were displayed based on the IL6R gene region to present evidence of genetic colocalization between diseases. Results The MR result denoted a genetic association between the increased level of IL-6 signaling and risk of RA (β=0.325, 95%CI 0.088, 0.561, p=7.08E-03) and AS (β=1.240, 95%CI 0.495, 1.980, p=1.1E-03). Accordingly, sIL6R was found to have negatively correlation with the onset of RA (β=-0.020, 95%CI -0.0320, -0.008, p=1.18E-03) and AS (β=-0.125, 95%CI -0.177, -0.073, p=2.29E-06). However, no genetic association between IL6/sIL6R and PsA was detected. The gender-stratified MR analysis showed that IL6 was associated with AS in the male population, with RA in the female population, and with PsA in the male population. Additionally, ADAR, a gene identified by a sensitive test, could be the reason for the nonsignificant association between IL6 and PsA in a pooled population. Conclusion Our findings showed that the overactive IL6 signal pathway led to autoimmune arthritis, especially in RA and AS. Sexual difference was also observed in IL6-intermediate susceptibility to autoimmune arthritis.
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Affiliation(s)
- Jianqiao Hong
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China.,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Zihao Qu
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China.,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Xiaoxiao Ji
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China.,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Congsun Li
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China.,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Geng Zhang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China.,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Ciliang Jin
- State Key Laboratory for Diagnosis and Treatment of Infectious Diseases, National Clinical Research Center for Infectious Diseases, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Department of Infectious Diseases, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou, China
| | - Jie Wang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China.,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Yongxing Zhang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China.,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Yue Shen
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China.,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Jiahong Meng
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China.,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Chenhe Zhou
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China.,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Chaohua Fang
- Joint Surgery, Ningbo 6th Hospital, Ningbo, China
| | - Wei Wang
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China.,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
| | - Shigui Yan
- Department of Orthopedic Surgery, The Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China.,Orthopedic Research Institute of Zhejiang University, Hangzhou, China.,Key Laboratory of Motor System Disease Research and Precision Therapy of Zhejiang Province, The Second Affiliated Hospital, Zhejiang University, Hangzhou, China
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29
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Hedenstierna L, Bellocco R, Ye W, Adami HO, Åkerstedt T, Trolle Lagerros Y, Hedström AK. Effects of alcohol consumption and smoking on risk for RA: results from a Swedish prospective cohort study. RMD Open 2021; 7:rmdopen-2020-001379. [PMID: 33414179 PMCID: PMC7797247 DOI: 10.1136/rmdopen-2020-001379] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2020] [Revised: 10/22/2020] [Accepted: 12/10/2020] [Indexed: 12/16/2022] Open
Abstract
Objective Several, but not all studies, have shown a dose-dependent inverse association with alcohol consumption and rheumatoid arthritis (RA), whereas smoking is an established risk factor for RA. We aimed to study the association between alcohol consumption and RA incidence and investigate a potential interaction between alcohol and smoking habits, regarding RA incidence. Methods We used a prospective cohort study, based on 41 068 participants with detailed assessment of alcohol intake, smoking and potential confounders at baseline in 1997. We ascertained a total of 577 incident cases of RA during a mean of 17.7 years of follow-up through linkage to nationwide and essentially complete databases. Multivariate Cox proportional hazards models were used to estimate HR with 95% CI. Interaction on the additive scale between alcohol and smoking was estimated by calculating the attributable proportion due to interaction (AP). Results Overall, alcohol consumption was associated with a 30% reduced incidence of RA (HR 0.69, 95% CI 0.55 to 0.86) with a dose–response relationship (p value for trend <0.001) which remained significant after stratification by age and smoking habits. The positive association between smoking and RA incidence was reduced with increasing alcohol consumption (p value for trend <0.001). A synergistic effect was observed between alcohol and smoking (AP 0.40, 95% CI 0.15 to 0.64), indicating that 40% of the cases among the double exposed are due to the interaction per se. Conclusions Our findings suggest an inverse association between alcohol consumption and RA incidence, and a synergistic effect between alcohol and smoking.
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Affiliation(s)
- Louise Hedenstierna
- Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden .,Center of Rheumatology, Academic Specialist Center, Stockholm Health Services, Stockholm, Sweden
| | - Rino Bellocco
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.,Department of Statistics and Quantitative Methods, University of Milano-Bicocca, Milan, Italy
| | - Weimin Ye
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden
| | - Hans-Olov Adami
- Department of Medical Epidemiology and Biostatistics, Karolinska Institutet, Stockholm, Sweden.,Clinical Effectiveness Group, Institute of Health and Society, University of Oslo, Oslo, Norway
| | - Torbjörn Åkerstedt
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.,Stress Research, Stockholm University, Stockholm University, Stockholm, Sweden
| | - Ylva Trolle Lagerros
- Clinical Epidemiology Division, Department of Medicine, Solna, Karolinska Institutet, Stockholm, Sweden.,Center for Obesity, Academic Specialst Center, Stockholm Health Services, Stockholm, Sweden
| | - Anna Karin Hedström
- Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden
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Schäfer AL, Eichhorst A, Hentze C, Kraemer AN, Amend A, Sprenger DTL, Fluhr C, Finzel S, Daniel C, Salzer U, Rizzi M, Voll RE, Chevalier N. Low Dietary Fiber Intake Links Development of Obesity and Lupus Pathogenesis. Front Immunol 2021; 12:696810. [PMID: 34335609 PMCID: PMC8320762 DOI: 10.3389/fimmu.2021.696810] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2021] [Accepted: 06/23/2021] [Indexed: 12/12/2022] Open
Abstract
Changed dietary habits in Western countries such as reduced fiber intake represent an important lifestyle factor contributing to the increase in inflammatory immune-mediated diseases. The mode of action of beneficial fiber effects is not fully elucidated, but short-chain fatty acids (SCFA) and gut microbiota have been implicated. The aim of this study was to explore the impact of dietary fiber on lupus pathology and to understand underlying mechanisms. Here, we show that in lupus-prone NZB/WF1 mice low fiber intake deteriorates disease progression reflected in accelerated mortality, autoantibody production and immune dysregulation. In contrast to our original assumption, microbiota suppression by antibiotics or direct SCFA feeding did not influence the course of lupus-like disease. Mechanistically, our data rather indicate that in low fiber-fed mice, an increase in white adipose tissue mass, fat-inflammation and a disrupted intestinal homeostasis go along with systemic, low-grade inflammation driving autoimmunity. The links between obesity, intestinal leakage and low-grade inflammation were confirmed in human samples, while adaptive immune activation predominantly correlated with lupus activity. We further propose that an accelerated gastro-intestinal passage along with energy dilution underlies fiber-mediated weight regulation. Thus, our data highlight the often-overlooked effects of dietary fiber on energy homeostasis and obesity prevention. Further, they provide insight into how intricately the pathologies of inflammatory immune-mediated conditions, such as obesity and autoimmunity, might be interlinked, possibly sharing common pathways.
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MESH Headings
- Adaptive Immunity
- Adipose Tissue, White/immunology
- Adipose Tissue, White/metabolism
- Adipose Tissue, White/pathology
- Adiposity
- Adolescent
- Adult
- Aged
- Aged, 80 and over
- Animal Feed
- Animals
- Autoantibodies/blood
- Autoimmunity
- Case-Control Studies
- Dietary Fiber/administration & dosage
- Dietary Fiber/deficiency
- Disease Models, Animal
- Disease Progression
- Energy Metabolism
- Female
- Humans
- Inflammation Mediators/metabolism
- Intestinal Mucosa/immunology
- Intestinal Mucosa/metabolism
- Intestinal Mucosa/pathology
- Lupus Erythematosus, Systemic/etiology
- Lupus Erythematosus, Systemic/immunology
- Lupus Erythematosus, Systemic/metabolism
- Lupus Erythematosus, Systemic/pathology
- Male
- Mice, Inbred NZB
- Middle Aged
- Nutritive Value
- Obesity/etiology
- Obesity/immunology
- Obesity/metabolism
- Obesity/pathology
- Permeability
- Young Adult
- Mice
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Affiliation(s)
- Anna-Lena Schäfer
- Department of Rheumatology and Clinical Immunology, University Medical Centre Freiburg, Freiburg, Germany
| | - Alexandra Eichhorst
- Department of Rheumatology and Clinical Immunology, University Medical Centre Freiburg, Freiburg, Germany
| | - Carolin Hentze
- Department of Rheumatology and Clinical Immunology, University Medical Centre Freiburg, Freiburg, Germany
| | - Antoine N. Kraemer
- Department of Rheumatology and Clinical Immunology, University Medical Centre Freiburg, Freiburg, Germany
| | - Anaïs Amend
- Department of Rheumatology and Clinical Immunology, University Medical Centre Freiburg, Freiburg, Germany
| | - Dalina T. L. Sprenger
- Department of Rheumatology and Clinical Immunology, University Medical Centre Freiburg, Freiburg, Germany
| | - Cara Fluhr
- Department of Rheumatology and Clinical Immunology, University Medical Centre Freiburg, Freiburg, Germany
| | - Stephanie Finzel
- Department of Rheumatology and Clinical Immunology, University Medical Centre Freiburg, Freiburg, Germany
| | - Christoph Daniel
- Department of Nephropathology, Friedrich-Alexander University (FAU) of Erlangen-Nuremberg, Erlangen, Germany
| | - Ulrich Salzer
- Department of Rheumatology and Clinical Immunology, University Medical Centre Freiburg, Freiburg, Germany
| | - Marta Rizzi
- Department of Rheumatology and Clinical Immunology, University Medical Centre Freiburg, Freiburg, Germany
| | - Reinhard E. Voll
- Department of Rheumatology and Clinical Immunology, University Medical Centre Freiburg, Freiburg, Germany
| | - Nina Chevalier
- Department of Rheumatology and Clinical Immunology, University Medical Centre Freiburg, Freiburg, Germany
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31
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Lu J, Wu J, Xia X, Peng H, Wang S. Follicular helper T cells: potential therapeutic targets in rheumatoid arthritis. Cell Mol Life Sci 2021; 78:5095-5106. [PMID: 33880615 PMCID: PMC11073436 DOI: 10.1007/s00018-021-03839-1] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2021] [Revised: 03/26/2021] [Accepted: 04/08/2021] [Indexed: 02/08/2023]
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune disease with joint and systemic inflammation that is accompanied by the production of autoantibodies, such as rheumatoid factor and anti-cyclic citrullinated peptide (anti-CCP) antibodies. Follicular helper T (Tfh) cells, which are a subset of CD4+ T cells, facilitate germinal center (GC) reactions by providing signals required for high-affinity antibody production and the generation of long-lived antibody-secreting plasma cells. Uncontrolled expansion of Tfh cells is observed in various systemic autoimmune diseases. Particularly, the frequencies of circulating Tfh-like (cTfh-like) cells, their subtypes and synovial-infiltrated T helper cells correlate with disease activity in RA patients. Therefore, reducing autoantibody production and restricting excessive Tfh cell responses are ideal ways to control RA pathogenesis. The present review summarizes current knowledge of the involvement of Tfh cells in RA pathogenesis and highlights the potential of these cells as therapeutic targets.
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Affiliation(s)
- Jian Lu
- Department of Laboratory Medicine, Affiliated People's Hospital, Jiangsu University, Zhenjiang, 212002, China
- Institute of Laboratory Medicine, Jiangsu Key Laboratory for Laboratory Medicine, Jiangsu University School of Medicine, Zhenjiang, China
| | - Jing Wu
- Institute of Laboratory Medicine, Jiangsu Key Laboratory for Laboratory Medicine, Jiangsu University School of Medicine, Zhenjiang, China
| | - Xueli Xia
- Institute of Laboratory Medicine, Jiangsu Key Laboratory for Laboratory Medicine, Jiangsu University School of Medicine, Zhenjiang, China
| | - Huiyong Peng
- Department of Laboratory Medicine, Affiliated People's Hospital, Jiangsu University, Zhenjiang, 212002, China.
| | - Shengjun Wang
- Department of Laboratory Medicine, Affiliated People's Hospital, Jiangsu University, Zhenjiang, 212002, China.
- Institute of Laboratory Medicine, Jiangsu Key Laboratory for Laboratory Medicine, Jiangsu University School of Medicine, Zhenjiang, China.
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32
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Qi X, Zhang L, Xu J, Tao Z, Wang X, Qiu Y, Pan T, Liu Z, Qu H, Tan R, Liu J. Association of Increased Circulating Acetic Acid With Poor Survival in Pseudomonas aeruginosa Ventilator-Associated Pneumonia Patients. Front Cell Infect Microbiol 2021; 11:669409. [PMID: 33996639 PMCID: PMC8117141 DOI: 10.3389/fcimb.2021.669409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2021] [Accepted: 04/14/2021] [Indexed: 11/13/2022] Open
Abstract
Background We previously found that microbial disruption in Pseudomonas aeruginosa ventilator-associated pneumonia (PA-VAP) patients are long-lasting. Long-term microbial dysbiosis may lead to changes in metabolites. Short-chain fatty acids (SCFAs) are microbial fermentation products and show beneficial effects in patients with pneumonia. In this study, we aimed to explore the association between circulating SCFA levels and clinical outcomes in patients with PA-VAP. Methods In this study, we analyzed SCFAs in the serum of 49 patients with PA-VAP by gas chromatography-mass spectrometry analysis. Twenty of these patients died, and 29 survived. The correlation between serum SCFAs and patient survival and immune parameters was analyzed. Results We developed a partial least squares discriminant analysis (PLS-DA) model to examine differential SCFAs in 49 patients with PA-VAP. Among the seven SCFAs, only acetic acid was increased in non-survivors (P = 0.031, VIP > 1). Furthermore, high levels of acetic acid (>1.96ug/ml) showed increased 90-day mortality compared to low levels of acetic acid (<1.96ug/ml) in Kaplan-Meier survival analyses (P = 0.027). Increased acetic acid also correlated with reduced circulating lymphocyte and monocyte counts. Conclusion Our study showed that increased circulating acetic acid is associated with 90-day mortality in PA-VAP patients. The decrease in lymphocytes and monocytes might be affected by acetic acid and involved in the poor prognosis.
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Affiliation(s)
- Xiaoling Qi
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Li Zhang
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jing Xu
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zheying Tao
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiaoli Wang
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Yuzhen Qiu
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Tingting Pan
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Zhaojun Liu
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Hongping Qu
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Ruoming Tan
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Jialin Liu
- Department of Critical Care Medicine, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
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33
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Julià A, Martínez-Mateu SH, Domènech E, Cañete JD, Ferrándiz C, Tornero J, Gisbert JP, Fernández-Nebro A, Daudén E, Barreiro-de Acosta M, Pérez C, Queiró R, López-Longo FJ, Carazo JLS, Mendoza JL, Alpéri M, Montilla C, Venegas JJP, Muñoz F, Castañeda S, Aterido A, Lasanta ML, Marsal S. Food groups associated with immune-mediated inflammatory diseases: a Mendelian randomization and disease severity study. Eur J Clin Nutr 2021; 75:1368-1382. [PMID: 33893449 DOI: 10.1038/s41430-021-00913-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2020] [Revised: 03/17/2021] [Accepted: 03/29/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND/OBJECTIVES Immune-mediated inflammatory diseases (IMIDs) are prevalent diseases. There is, however, a lack of understanding of the link between diet and IMIDs, how much dietary patterns vary between them and if there are food groups associated with a worsening of the disease. SUBJECTS/METHODS To answer these questions we analyzed a nation-wide cohort of n = 11,308 patients from six prevalent IMIDs and 2050 healthy controls. We compared their weekly intake of the major food categories, and used a Mendelian randomization approach to determine which dietary changes are caused by disease. Within each IMID, we analyzed the association between food frequency and disease severity. RESULTS After quality control, n = 11,230 recruited individuals were used in this study. We found that diet is profoundly altered in all IMIDs: at least three food categories are significantly altered in each disease (P < 0.05). Inflammatory bowel diseases showed the largest differences compared to controls (n ≥ 8 categories, P < 0.05). Mendelian randomization analysis supported that some of these dietary changes, like vegetable reduction in Crohn's Disease (P = 2.5 × 10-10, OR(95% CI) = 0.73(0.65, 0.80)), are caused by the disease. Except for Psoriatic Arthritis and Systemic Lupus Erythematosus, we have found ≥2 food groups significantly associated with disease severity in the other IMIDs (P < 0.05). CONCLUSIONS This cross-disease study demonstrates that prevalent IMIDs are associated to a significant change in the normal dietary patterns. This variation is highly disease-specific and, in some cases, it is caused by the disease itself. Severity in IMIDs is also associated with specific food groups. The results of this study underscore the importance of studying diet in IMIDs.
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Affiliation(s)
- Antonio Julià
- Rheumatology Research Group, Vall d'Hebron Hospital Research Institute, Barcelona, Spain.
| | | | - Eugeni Domènech
- Hospital Universitari Germans Trias i Pujol, Badalona, Spain.,CIBERehd, Madrid, Spain
| | - Juan D Cañete
- Hospital Clínic de Barcelona and IDIBAPS, Barcelona, Spain
| | | | - Jesús Tornero
- Hospital Universitario de Guadalajara, Guadalajara, Spain
| | - Javier P Gisbert
- CIBERehd, Madrid, Spain.,Hospital Universitario de La Princesa and IIS-IP, Madrid, Spain
| | - Antonio Fernández-Nebro
- UGC Reumatología, Instituto de Investigación Biomédica (IBIMA), Hospital Regional Universitario de Málaga, Universidad de Málaga, Málaga, Spain
| | - Esteban Daudén
- Hospital Universitario de La Princesa and IIS-IP, Madrid, Spain
| | | | | | - Rubén Queiró
- Hospital Universitario Central de Asturias, Oviedo, Spain
| | | | | | | | | | | | | | | | | | - Adrià Aterido
- Rheumatology Research Group, Vall d'Hebron Hospital Research Institute, Barcelona, Spain
| | - María López Lasanta
- Rheumatology Research Group, Vall d'Hebron Hospital Research Institute, Barcelona, Spain
| | - Sara Marsal
- Rheumatology Research Group, Vall d'Hebron Hospital Research Institute, Barcelona, Spain.
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34
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Azizov V, Zaiss MM. Alcohol Consumption in Rheumatoid Arthritis: A Path through the Immune System. Nutrients 2021; 13:1324. [PMID: 33923766 PMCID: PMC8072698 DOI: 10.3390/nu13041324] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2021] [Revised: 04/14/2021] [Accepted: 04/15/2021] [Indexed: 12/27/2022] Open
Abstract
Benefits and harms of different components of human diet have been known for hundreds of years. Alcohol is one the highest consumed, abused, and addictive substances worldwide. Consequences of alcohol abuse are increased risks for diseases of the cardiovascular system, liver, and nervous system, as well as reduced immune system function. Paradoxically, alcohol has also been a consistent protective factor against the development of autoimmune diseases such as type 1 diabetes, multiple sclerosis, systemic lupus erythematosus, and rheumatoid arthritis (RA). Here, we focused on summarizing current findings on the effects of alcohol, as well as of its metabolites, acetaldehyde and acetate, on the immune system and RA. Heavy or moderate alcohol consumption can affect intestinal barrier integrity, as well as the microbiome, possibly contributing to RA. Additionally, systemic increase in acetate negatively affects humoral immune response, diminishing TFH cell as well as professional antigen-presenting cell (APC) function. Hence, alcohol consumption has profound effects on the efficacy of vaccinations, but also elicits protection against autoimmune diseases. The mechanism of alcohol's negative effects on the immune system is multivariate. Future studies addressing alcohol and its metabolite acetate's effect on individual components of the immune system remains crucial for our understanding and development of novel therapeutic pathways.
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Affiliation(s)
- Vugar Azizov
- Department of Internal Medicine 3—Rheumatology and Immunology, Friedrich-Alexander Universität Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, 91054 Erlangen, Germany;
- Deutsches Zentrum für Immuntherapie, Friedrich-Alexander Universität Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, 91054 Erlangen, Germany
| | - Mario M. Zaiss
- Department of Internal Medicine 3—Rheumatology and Immunology, Friedrich-Alexander Universität Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, 91054 Erlangen, Germany;
- Deutsches Zentrum für Immuntherapie, Friedrich-Alexander Universität Erlangen-Nürnberg (FAU) and Universitätsklinikum Erlangen, 91054 Erlangen, Germany
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35
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The pre-clinical phase of rheumatoid arthritis: From risk factors to prevention of arthritis. Autoimmun Rev 2021; 20:102797. [PMID: 33746022 DOI: 10.1016/j.autrev.2021.102797] [Citation(s) in RCA: 48] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2021] [Accepted: 01/29/2021] [Indexed: 02/06/2023]
Abstract
Rheumatoid arthritis (RA) is a chronic autoimmune disease considered as a multistep process spanning from the interaction of genetic (e.g., shared epitope or non-HLA loci), environmental and behavioral risk factors (e.g., smoking) leading to breaking immune tolerance and autoimmune processes such as the production of autoantibodies (e.g., antibodies against citrullinated proteins ACPA or rheumatoid factors, RF), development of the first symptoms without clinical arthritis, and, finally, the manifestation of arthritis. Despite the typical joint involvement in established RA, the pathogenesis of the disease likely begins far from joint structures: in the lungs or periodontium in association with citrullination, intestinal microbiome, or adipose tissue, which supports normal findings in synovial tissue in ACPA+ patients with arthralgia. The presence of ACPA is detectable even years before the first manifestation of RA. The pre-clinical phase of RA is the period preceding clinically apparent RA with ACPA contributing to the symptoms without subclinical inflammation. While the combination of ACPA and RF increases the risk of progression to RA by up to 10 times, increasing numbers of novel autoantibodies are to be investigated to contribute to the increased risk and pathogenesis of RA. With growing knowledge about the course of RA, new aspiration emerges to cure and even prevent RA, shifting the "window of opportunity" to the pre-clinical phases of RA. The clinical definition of individuals at risk of developing RA (clinically suspect arthralgia, CSA) makes it possible to unify these at-risk individuals' clinical characteristics for "preventive" treatment in ongoing clinical trials using mostly biological or conventional synthetic disease-modifying drugs. However, the combination of symptoms, laboratory, and imaging biomarkers may be the best approach to select the correct target at-risk population. The current review aims to explore different phases of RA and discuss the potential of (non)pharmacological intervention aiming to prevent RA.
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Schett G, Tanaka Y, Isaacs JD. Why remission is not enough: underlying disease mechanisms in RA that prevent cure. Nat Rev Rheumatol 2021; 17:135-144. [PMID: 33303993 DOI: 10.1038/s41584-020-00543-5] [Citation(s) in RCA: 45] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/10/2020] [Indexed: 01/04/2023]
Abstract
Cure is the aspirational aim for the treatment of all diseases, including chronic inflammatory conditions such as rheumatoid arthritis (RA); however, it has only been during the twenty-first century that remission, let alone cure, has been a regularly achievable target in RA. Little research has been carried out on how to cure RA, and the term 'cure' still requires definition for this disease. Even now, achieving a cure seems to be a rare occurrence among individuals with RA. Therefore, this Review is aimed at addressing the obstacles to the achievement of cure in RA. The differences between remission and cure in RA are first defined, followed by a discussion of the underlying factors (referred to as drivers) that prevent the achievement of cure in RA by triggering sustained immune activation and effector cytokine production. Such drivers include adaptive immune system activation, mesenchymal tissue priming and so-called 'remote' (non-immune and non-articular) factors. Strategies to target these drivers are also presented, with an emphasis on the development of strategies that could complement currently used cytokine inhibition and thereby improve the likelihood of curing RA.
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Affiliation(s)
- Georg Schett
- Department of Internal Medicine 3, Rheumatology and Immunology, Friedrich-Alexander-University (FAU) Erlangen-Nuremberg and Universitätsklinikum Erlangen, Erlangen, Germany.
- Deutsches Zentrum fur Immuntherapie, FAU Erlangen-Nuremberg and Universitätsklinikum Erlangen, Erlangen, Germany.
| | - Yoshiya Tanaka
- The First Department of Internal Medicine, University of Occupational and Environmental Health, Kitakyushu, Japan
| | - John D Isaacs
- Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, UK
- Musculoskeletal Unit, Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
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37
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Dominguez M, Brüne B, Namgaladze D. Exploring the Role of ATP-Citrate Lyase in the Immune System. Front Immunol 2021; 12:632526. [PMID: 33679780 PMCID: PMC7930476 DOI: 10.3389/fimmu.2021.632526] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2020] [Accepted: 01/04/2021] [Indexed: 12/22/2022] Open
Abstract
Studies over the past decade have revealed that metabolism profoundly influences immune responses. In particular, metabolism causes epigenetic regulation of gene expression, as a growing number of metabolic intermediates are substrates for histone post-translational modifications altering chromatin structure. One of these substrates is acetyl-coenzyme A (CoA), which donates an acetyl group for histone acetylation. Cytosolic acetyl-CoA is also a critical substrate for de novo synthesis of fatty acids and sterols necessary for rapid cellular growth. One of the main enzymes catalyzing cytosolic acetyl-CoA formation is ATP-citrate lyase (ACLY). In addition to its classical function in the provision of acetyl-CoA for de novo lipogenesis, ACLY contributes to epigenetic regulation through histone acetylation, which is increasingly appreciated. In this review we explore the current knowledge of ACLY and acetyl-CoA in mediating innate and adaptive immune responses. We focus on the role of ACLY in supporting de novo lipogenesis in immune cells as well as on its impact on epigenetic alterations. Moreover, we summarize alternative sources of acetyl-CoA and their contribution to metabolic and epigenetic regulation in cells of the immune system.
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Affiliation(s)
- Monica Dominguez
- Faculty of Medicine, Institute of Biochemistry I, Goethe-University Frankfurt, Frankfurt, Germany
| | - Bernhard Brüne
- Faculty of Medicine, Institute of Biochemistry I, Goethe-University Frankfurt, Frankfurt, Germany.,Fraunhofer Institute for Translational Medicine and Pharmacology (ITMP), Frankfurt, Germany.,German Cancer Consortium (DKTK), Partner Site Frankfurt, Frankfurt, Germany.,Frankfurt Cancer Institute, Goethe-University Frankfurt, Frankfurt, Germany
| | - Dmitry Namgaladze
- Faculty of Medicine, Institute of Biochemistry I, Goethe-University Frankfurt, Frankfurt, Germany
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38
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Neuraminidase Inhibitor Zanamivir Ameliorates Collagen-Induced Arthritis. Int J Mol Sci 2021; 22:ijms22031428. [PMID: 33572654 PMCID: PMC7867009 DOI: 10.3390/ijms22031428] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 01/27/2021] [Accepted: 01/27/2021] [Indexed: 01/20/2023] Open
Abstract
Altered sialylation patterns play a role in chronic autoimmune diseases such as rheumatoid arthritis (RA). Recent studies have shown the pro-inflammatory activities of immunoglobulins (Igs) with desialylated sugar moieties. The role of neuraminidases (NEUs), enzymes which are responsible for the cleavage of terminal sialic acids (SA) from sialoglycoconjugates, is not fully understood in RA. We investigated the impact of zanamivir, an inhibitor of the influenza virus neuraminidase, and mammalian NEU2/3 on clinical outcomes in experimental arthritides studies. The severity of arthritis was monitored and IgG titers were measured by ELISA. (2,6)-linked SA was determined on IgG by ELISA and on cell surfaces by flow cytometry. Zanamivir at a dose of 100 mg/kg (zana-100) significantly ameliorated collagen-induced arthritis (CIA), whereas zana-100 was ineffective in serum transfer-induced arthritis. Systemic zana-100 treatment reduced the number of splenic CD138+/TACI+ plasma cells and CD19+ B cells, which was associated with lower IgG levels and an increased sialylation status of IgG compared to controls. Our data reveal the contribution of NEU2/3 in CIA. Zanamivir down-modulated the T and B cell-dependent humoral immune response and induced an anti-inflammatory milieu by inhibiting sialic acid degradation. We suggest that neuraminidases might represent a promising therapeutic target for RA and possibly also for other antibody-mediated autoimmune diseases.
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39
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Alpízar-Rodríguez D, Finckh A, Gilbert B. The Role of Nutritional Factors and Intestinal Microbiota in Rheumatoid Arthritis Development. Nutrients 2020; 13:nu13010096. [PMID: 33396685 PMCID: PMC7823566 DOI: 10.3390/nu13010096] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2020] [Revised: 12/10/2020] [Accepted: 12/11/2020] [Indexed: 02/07/2023] Open
Abstract
Evidence about the role of nutritional factors and microbiota in autoimmune diseases, and in rheumatoid arthritis (RA) in particular, has grown in recent years, however many controversies remain. The aim of this review is to summarize the role of nutrition and of the intestinal microbiota in the development of RA. We will focus on selected dietary patterns, individual foods and beverages that have been most consistently associated with RA or with the occurrence of systemic autoimmunity associated with RA. We will also review the evidence for a role of the intestinal microbiota in RA development. We propose that diet and digestive microbiota should be considered together in research, as they interact and may both be the target for future preventive interventions in RA.
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Affiliation(s)
- Deshiré Alpízar-Rodríguez
- Research Unit, Colegio Mexicano de Reumatología, Mexico City 04318, Mexico
- Correspondence: ; Tel.: +52-55-2525-1853
| | - Axel Finckh
- Department of Rheumatology, Geneva University Hospitals, 1206 Geneva, Switzerland; (A.F.); (B.G.)
| | - Benoît Gilbert
- Department of Rheumatology, Geneva University Hospitals, 1206 Geneva, Switzerland; (A.F.); (B.G.)
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