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Kombe Kombe AJ, Fotoohabadi L, Nanduri R, Gerasimova Y, Daskou M, Gain C, Sharma E, Wong M, Kelesidis T. The Role of the Nrf2 Pathway in Airway Tissue Damage Due to Viral Respiratory Infections. Int J Mol Sci 2024; 25:7042. [PMID: 39000157 PMCID: PMC11241721 DOI: 10.3390/ijms25137042] [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: 05/18/2024] [Revised: 06/14/2024] [Accepted: 06/20/2024] [Indexed: 07/16/2024] Open
Abstract
Respiratory viruses constitute a significant cause of illness and death worldwide. Respiratory virus-associated injuries include oxidative stress, ferroptosis, inflammation, pyroptosis, apoptosis, fibrosis, autoimmunity, and vascular injury. Several studies have demonstrated the involvement of the nuclear factor erythroid 2-related factor 2 (Nrf2) in the pathophysiology of viral infection and associated complications. It has thus emerged as a pivotal player in cellular defense mechanisms against such damage. Here, we discuss the impact of Nrf2 activation on airway injuries induced by respiratory viruses, including viruses, coronaviruses, rhinoviruses, and respiratory syncytial viruses. The inhibition or deregulation of Nrf2 pathway activation induces airway tissue damage in the presence of viral respiratory infections. In contrast, Nrf2 pathway activation demonstrates protection against tissue and organ injuries. Clinical trials involving Nrf2 agonists are needed to define the effect of Nrf2 therapeutics on airway tissues and organs damaged by viral respiratory infections.
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Affiliation(s)
- Arnaud John Kombe Kombe
- Division of Infectious Diseases and Geographic Medicine, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; (A.J.K.K.)
| | - Leila Fotoohabadi
- Division of Infectious Diseases and Geographic Medicine, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; (A.J.K.K.)
| | - Ravikanth Nanduri
- Division of Infectious Diseases and Geographic Medicine, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; (A.J.K.K.)
| | - Yulia Gerasimova
- Division of Infectious Diseases and Geographic Medicine, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; (A.J.K.K.)
| | - Maria Daskou
- Division of Infectious Diseases, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Chandrima Gain
- Division of Infectious Diseases, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Eashan Sharma
- Division of Infectious Diseases, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Michael Wong
- Division of Infectious Diseases, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
| | - Theodoros Kelesidis
- Division of Infectious Diseases and Geographic Medicine, Department of Internal Medicine, University of Texas Southwestern Medical Center, Dallas, TX 75390, USA; (A.J.K.K.)
- Division of Infectious Diseases, Department of Medicine, David Geffen School of Medicine, University of California Los Angeles, Los Angeles, CA 90095, USA
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2
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Wang C, Jiang H, Chen S, Zhao Y, Li J, Huang C, Zhou Y, Wang Q, Tian X, Li M, Zeng X, Zhao Y, Wu C, Zhao J. Exploring the impact of acute viral exposure on clinical characteristics and antibody profiles in antiphospholipid syndrome: a study in CAPSTONE. Clin Exp Med 2024; 24:130. [PMID: 38888664 PMCID: PMC11189343 DOI: 10.1007/s10238-024-01400-5] [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: 04/23/2024] [Accepted: 06/10/2024] [Indexed: 06/20/2024]
Abstract
The relationship between antiphospholipid syndrome (APS) and acute viral infection, such as SARS-CoV-2, is unclear. This study aims to assess symptoms, antiphospholipid antibody (aPL) fluctuations, and complication risks in APS patients infected with SARS-CoV-2. APS patients from Peking Union Medical College Hospital during the COVID-19 outbreak (October-December 2022) were included. Age- and gender-matched APS patients without infection served as controls. Data on demographics, symptoms, treatments, and serum aPL levels were analyzed. Of 234 APS patients, 107 (45.7%) were infected with SARS-CoV-2. Typical symptoms included high fever (81.3%), cough/expectoration (70.1%), and pharyngalgia (52.3%). Age- and gender-based matching selected 97 patients in either infected or uninfected group. After infection, anti-β-2-glycoprotein I-IgG (aβ2GP1-IgG) increased from 4.14 to 4.18 AU/ml, aβ2GP1-IgM decreased from 9.85 to 7.38 AU/ml, and anticardiolipin-IgA (aCL-IgA) significantly increased with a median remaining at 2.50 APLU/ml. Lupus anticoagulants and other aPLs remained stable. Arterial thrombosis incidence increased from 18 (18.6%) to 21 (21.6%), while venous thrombosis incidence did not change. Additionally, 7 (6.5%) patients presented either new-onset or worsening thrombocytopenia, characterized by a significant decline in platelet count (no less than 10 × 109/L) within two weeks of SARS-CoV-2 infection, all of which recovered within 2 weeks. Acute SARS-CoV-2 infection may induce or worsen thrombocytopenia but does not substantially increase thrombotic events in APS. The process of SARS-CoV-2 infection was related to mild titer fluctuation of aβ2GP1-IgG, aβ2GP1-IgM and aCL-IgA in APS patients, necessitating careful monitoring and management.
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Affiliation(s)
- Chuhan Wang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Beijing, 100730, China
| | - Hui Jiang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Beijing, 100730, China
| | - Siyun Chen
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Beijing, 100730, China
| | - Yuan Zhao
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Beijing, 100730, China
| | - Jun Li
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Beijing, 100730, China
| | - Can Huang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Beijing, 100730, China
- National Clinical Research Center of Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, 100730, China
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, 100730, China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Beijing, 100730, China
| | - Yangzhong Zhou
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Beijing, 100730, China
- National Clinical Research Center of Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, 100730, China
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, 100730, China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Beijing, 100730, China
| | - Qian Wang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Beijing, 100730, China
- National Clinical Research Center of Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, 100730, China
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, 100730, China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Beijing, 100730, China
| | - Xinping Tian
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Beijing, 100730, China
- National Clinical Research Center of Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, 100730, China
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, 100730, China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Beijing, 100730, China
| | - Mengtao Li
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Beijing, 100730, China
- National Clinical Research Center of Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, 100730, China
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, 100730, China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Beijing, 100730, China
| | - Xiaofeng Zeng
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Beijing, 100730, China
- National Clinical Research Center of Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, 100730, China
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, 100730, China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Beijing, 100730, China
| | - Yan Zhao
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Beijing, 100730, China
- National Clinical Research Center of Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, 100730, China
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, 100730, China
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Beijing, 100730, China
| | - Chuancong Wu
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Beijing, 100730, China.
- Department of Rheumatology and Immunology, Affiliated Qingyuan Hospital, The Sixth Clinical Medical School, Guangzhou Medical University, Qingyuan People's Hospital, Qingyuan, 511518, Guangdong, China.
| | - Jiuliang Zhao
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Beijing, 100730, China.
- National Clinical Research Center of Dermatologic and Immunologic Diseases (NCRC-DID), Beijing, 100730, China.
- Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, 100730, China.
- State Key Laboratory of Complex Severe and Rare Diseases, Peking Union Medical College Hospital, Beijing, 100730, China.
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Brahem M, Jomaa O, Arfa S, Sarraj R, Tekaya R, Berriche O, Hachfi H, Younes M. Acute arthritis following SARS-CoV-2 infection: About two cases. Clin Case Rep 2023; 11:e7334. [PMID: 37205154 PMCID: PMC10185734 DOI: 10.1002/ccr3.7334] [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: 02/14/2022] [Revised: 02/22/2023] [Accepted: 04/25/2023] [Indexed: 05/21/2023] Open
Abstract
Joint involvement in COVID-19 may occur at different stages of the disease and maybe represented by non-specific arthralgia or by acute arthritis. We report two cases of COVID-19 infection that were complicated by postviral reactive arthritis. Case 1: A 47-year-old male was presented 20 days after a COVID-19 infection with acute right knee arthritis. On biologic data, erythrocyte sedimentation rate and C-reactive protein were normal, and immunologic data were negative. A joint puncture was performed showing a turbid fluid. Testing for microcrystals was negative, as well as the synovial fluid culture. An infectious investigation was conducted, which was negative. The patient's complaints improved significantly, with analgesics and non-steroidal anti-inflammatory drugs (NSAID). Case 2: A 33-year-old female presented with acute left knee arthritis evolving for 48 h, free of fever, after a COVID-19 infection treated 15 days ago. On examination, besides knee arthritis, the osteoarticular examination was normal. A biological inflammatory syndrome was noted in laboratory tests. A yellow fluid with multiple PNN was detected in the joint fluid aspiration, with a negative culture. The patient was treated by analgesics and NSAID. The follow-up was highlighted by the arthritis resolution. Conclusion: Both of our cases are consistent with what has already been reported in the literature confirming the development of PostCOVID arthritis and strengthen the impending necessity of wider studies to identify rheumatologic manifestations in the short- and long-terms after surviving COVID-19.
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Affiliation(s)
- Mouna Brahem
- Rheumatology DepartmentTaher Sfar University HospitalMahdiaTunisia
| | - Olfa Jomaa
- Rheumatology DepartmentTaher Sfar University HospitalMahdiaTunisia
| | - Sondess Arfa
- Endocrinology and Internal Medicine DepartmentTaher Sfar University HospitalMahdiaTunisia
| | - Rihab Sarraj
- Rheumatology DepartmentTaher Sfar University HospitalMahdiaTunisia
| | - Rami Tekaya
- Rheumatology DepartmentTaher Sfar University HospitalMahdiaTunisia
| | - Olfa Berriche
- Endocrinology and Internal Medicine DepartmentTaher Sfar University HospitalMahdiaTunisia
| | - Haifa Hachfi
- Rheumatology DepartmentTaher Sfar University HospitalMahdiaTunisia
| | - Mohamed Younes
- Rheumatology DepartmentTaher Sfar University HospitalMahdiaTunisia
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Scharf RE, Anaya JM. Post-COVID Syndrome in Adults-An Overview. Viruses 2023; 15:675. [PMID: 36992384 PMCID: PMC10056158 DOI: 10.3390/v15030675] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2023] [Revised: 02/28/2023] [Accepted: 03/01/2023] [Indexed: 03/08/2023] Open
Abstract
This article provides an overview of various aspects related to post-COVID syndrome. Apart from its prevalence, symptoms and sequelae, risk determinants, and psychosocial implications, the pathogenesis of post-COVID condition is discussed in more detail. A focus on thrombo-inflammation in SARS-CoV-2 infection, the role of neutrophil extracellular traps, and the prevalence of venous thromboembolism is made. Moreover, COVID-19 and post-COVID syndrome in immunocompromising conditions, and the impact of vaccination on the prevention and treatment of post-COVID symptoms are reviewed. Autoimmunity is a hallmark of post-COVID syndrome, and, therefore, is another focus of this article. Thus, misdirected cellular and humoral immune responses can enhance the risk of latent autoimmunity in post-COVID syndrome. Facing the high prevalence of COVID-19 cases worldwide, it can be assumed that autoimmune disorders will increase globally over the next few years. Recent advances in identifying genetically determined variants may open the avenue for a better understanding of the susceptibility to and severity of SARS-CoV-2 infection and post-COVID syndrome.
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Affiliation(s)
- Rüdiger E. Scharf
- Current Address: Department of Medicine, Division of Cardiology, Angiology, Hemostasis and Internal Intensive Care Medicine, University Medical Center Mannheim, University of Heidelberg, D-68167 Mannheim, Germany
- Harvard Medical School, Program in Cellular and Molecular Medicine, Boston Children’s Hospital, Karp Family Research Laboratories, Boston, MA 02115, USA
- Institute of Transplantation Diagnostics and Cell Therapy, Division of Hemostasis, Hemotherapy and Transfusion Medicine, Heinrich Heine University Medical Center, D-40225 Düsseldorf, Germany
| | - Juan-Manuel Anaya
- Current Affiliation & Address: National Academy of Medicine of Colombia, Bogotá 110221, Colombia
- Health Research and Innovation Center at Coosalud, Cartagena 130001, Colombia
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Chang R, Yen-Ting Chen T, Wang SI, Hung YM, Chen HY, Wei CCJ. Risk of autoimmune diseases in patients with COVID-19: A retrospective cohort study. EClinicalMedicine 2023; 56:101783. [PMID: 36643619 PMCID: PMC9830133 DOI: 10.1016/j.eclinm.2022.101783] [Citation(s) in RCA: 92] [Impact Index Per Article: 92.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 11/14/2022] [Accepted: 11/28/2022] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND There are a growing number of case reports of various autoimmune diseases occurring after COVID-19, yet there is no large-scale population-based evidence to support this potential association. This study provides a closer insight into the association between COVID-19 and autoimmune diseases and reveals discrepancies across sex, age, and race of participants. METHODS This is a retrospective cohort study based on the TriNetX U.S. Collaborative Network. In the test-negative design, cases were participants with positive polymerase chain reaction (PCR) test results for SARS-CoV-2, while controls were participants who tested negative and were not diagnosed with COVID-19 throughout the follow-up period. Patients with COVID-19 and controls were propensity score-matched (1: 1) for age, sex, race, adverse socioeconomic status, lifestyle-related variables, and comorbidities. The primary endpoint is the incidence of newly recorded autoimmune diseases. Adjusted hazard ratios (aHRs) and 95% confident intervals (CIs) of autoimmune diseases were calculated between propensity score-matched groups with the use of Cox proportional-hazards regression models. FINDINGS Between January 1st, 2020 and December 31st, 2021, 3,814,479 participants were included in the study (888,463 cases and 2,926,016 controls). After matching, the COVID-19 cohort exhibited significantly higher risks of rheumatoid arthritis (aHR:2.98, 95% CI:2.78-3.20), ankylosing spondylitis (aHR:3.21, 95% CI:2.50-4.13), systemic lupus erythematosus (aHR:2.99, 95% CI:2.68-3.34), dermatopolymyositis (aHR:1.96, 95% CI:1.47-2.61), systemic sclerosis (aHR:2.58, 95% CI:2.02-3.28), Sjögren's syndrome (aHR:2.62, 95% CI:2.29-3.00), mixed connective tissue disease (aHR:3.14, 95% CI:2.26-4.36), Behçet's disease (aHR:2.32, 95% CI:1.38-3.89), polymyalgia rheumatica (aHR:2.90, 95% CI:2.36-3.57), vasculitis (aHR:1.96, 95% CI:1.74-2.20), psoriasis (aHR:2.91, 95% CI:2.67-3.17), inflammatory bowel disease (aHR:1.78, 95%CI:1.72-1.84), celiac disease (aHR:2.68, 95% CI:2.51-2.85), type 1 diabetes mellitus (aHR:2.68, 95%CI:2.51-2.85) and mortality (aHR:1.20, 95% CI:1.16-1.24). INTERPRETATION COVID-19 is associated with a different degree of risk for various autoimmune diseases. Given the large sample size and relatively modest effects these findings should be replicated in an independent dataset. Further research is needed to better understand the underlying mechanisms. FUNDING Kaohsiung Veterans General Hospital (KSVGH111-113).
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Affiliation(s)
- Renin Chang
- Department of Emergency Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
- Department of Recreation and Sports Management, Tajen University, Pintung, Taiwan
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Thomas Yen-Ting Chen
- Harvard T.H. Chan School of Public Health, Boston, MA, USA
- Department of Medical Research and Education, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Shiow-Ing Wang
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Center for Health Data Science, Department of Medical Research, Chung Shan Medical University Hospital, Taichung, Taiwan
| | - Yao-Min Hung
- Division of Nephrology, Department of Internal Medicine, Taipei Veterans General Hospital Taitung Branch, Taiwan
- College of Science and Engineering, National Taitung University, Taitung, Taiwan
- College of Health and Nursing, Meiho University, Pingtung, Taiwan
- Corresponding author. No. 1000, Gengsheng Rd., Taitung City, Taitung County, Taiwan.
| | - Hui-Yuan Chen
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
| | - Cheng-Chung James Wei
- Institute of Medicine, Chung Shan Medical University, Taichung, Taiwan
- Division of Allergy, Immunology and Rheumatology, Chung Shan Medical University Hospital, Taichung, Taiwan
- Graduate Institute of Integrated Medicine, China Medical University, Taichung, Taiwan
- Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan
- Corresponding author. No. 110, Sec. 1, Jianguo N. Rd., South District, Taichung City, Taiwan.
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Molecular Mimicry Analyses Unveiled the Human Herpes Simplex and Poxvirus Epitopes as Possible Candidates to Incite Autoimmunity. Pathogens 2022; 11:pathogens11111362. [PMID: 36422613 PMCID: PMC9696880 DOI: 10.3390/pathogens11111362] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Revised: 10/24/2022] [Accepted: 11/15/2022] [Indexed: 11/17/2022] Open
Abstract
Clinical epidemiological studies have reported that viral infections cause autoimmune pathology in humans. Host-pathogen protein sequences and structure-based molecular mimicry cause autoreactive T cells to cross-activate. The aim of the current study was to implement immunoinformatics approaches to infer sequence- and structure-based molecular mimicry between viral and human proteomic datasets. The protein sequences of all the so far known human-infecting viruses were obtained from the VIPR database, and complete human proteome data were retrieved from the NCBI repository. Based on a predefined, stringent threshold of comparative sequence analyses, 24 viral proteins were identified with significant sequence similarity to human proteins. PathDIP identified the enrichment of these homologous proteins in nine metabolic pathways with a p-value < 0.0001. Several viral and human mimic epitopes from these homologous proteins were predicted as strong binders of human HLA alleles, with IC50 < 50 nM. Downstream molecular docking analyses identified that lead virus-human homologous epitopes feasibly interact with HLA and TLR4 types of immune receptors. The vast majority of these top-hit homolog epitopic peptides belong to the herpes simplex and poxvirus families. These lead epitope biological sequences and 3D structural-based molecular mimicry may be promising for interpreting herpes simplex virus and poxvirus infection-mediated autoimmune disorders in humans.
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7
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Farisogullari B, Pinto AS, Machado PM. COVID-19-associated arthritis: an emerging new entity? RMD Open 2022; 8:rmdopen-2021-002026. [PMID: 36100294 PMCID: PMC9471208 DOI: 10.1136/rmdopen-2021-002026] [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: 05/05/2022] [Accepted: 08/20/2022] [Indexed: 11/03/2022] Open
Abstract
The current COVID-19 pandemic raises several clinical challenges. Cases of COVID-19-associated arthritis have been reported, and inconsistently described as either COVID-19 viral arthritis or COVID-19 reactive arthritis. We aimed to review all the reported cases of 'COVID-19-associated arthritis', which we propose, is a better term to define the entire spectrum of new-onset arthritis believed to be associated with SARS-CoV-2 infection. We performed a systematic literature review using MEDLINE, EMBASE and the Cochrane Database of Systematic Reviews to search for articles published up to 13 December 2021. We included cohort studies, case series and case reports describing patients diagnosed with COVID-19 reactive or viral arthritis by a physician, irrespective of fulfilment of classification criteria. To identify relevant studies, medical subject headings and keywords related to 'COVID-19/SARS-CoV-2 infection' and 'reactive arthritis' were used. Our search retrieved 419 articles, of which 31 were included in the review. A total of 33 cases were reported in these 31 articles, the majority being adults (28/33=85%) with peripheral joint involvement (26/33=79%). Most of the patients responded well to treatment and the disease was self-limiting. These 33 case reports describe a possible causal relationship between exposure to SARS-CoV-2 and the onset of arthritis. However, since these cases were reported during a pandemic, other aetiologies cannot be fully excluded. The exact mechanism through which SARS-CoV-2 might trigger arthritis is not fully understood and robust epidemiological data to support a causal relationship are still lacking.
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Affiliation(s)
- Bayram Farisogullari
- Division of Rheumatology, Department of Internal Medicine, Hacettepe University, Ankara, Turkey
| | - Ana S Pinto
- Department of Rheumatology, Unidade Local de Saúde da Guarda EPE, Guarda, Portugal
| | - Pedro M Machado
- Centre for Rheumatology & Department of Neuromuscular Diseases, University College London, London, UK .,National Institute for Health Research (NIHR) University College London Hospitals Biomedical Research Centre, University College London Hospitals NHS Foundation Trust, London, UK.,Department of Rheumatology, Northwick Park Hospital, London North West University Healthcare NHS Trust, London, UK
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8
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Jacob S, Kapadia R, Soule T, Luo H, Schellenberg KL, Douville RN, Pfeffer G. Neuromuscular Complications of SARS-CoV-2 and Other Viral Infections. Front Neurol 2022; 13:914411. [PMID: 35812094 PMCID: PMC9263266 DOI: 10.3389/fneur.2022.914411] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2022] [Accepted: 05/25/2022] [Indexed: 12/15/2022] Open
Abstract
In this article we review complications to the peripheral nervous system that occur as a consequence of viral infections, with a special focus on complications of severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2). We discuss neuromuscular complications in three broad categories; the direct consequences of viral infection, autoimmune neuromuscular disorders provoked by viral infections, and chronic neurodegenerative conditions which have been associated with viral infections. We also include discussion of neuromuscular disorders that are treated by immunomodulatory therapies, and how this affects patient susceptibility in the current context of the coronavirus disease 2019 (COVID-19) pandemic. COVID-19 is associated with direct consequences to the peripheral nervous system via presumed direct viral injury (dysgeusia/anosmia, myalgias/rhabdomyolysis, and potentially mononeuritis multiplex) and autoimmunity (Guillain Barré syndrome and variants). It has important implications for people receiving immunomodulatory therapies who may be at greater risk of severe outcomes from COVID-19. Thus far, chronic post-COVID syndromes (a.k.a: long COVID) also include possible involvement of the neuromuscular system. Whether we may observe neuromuscular degenerative conditions in the longer term will be an important question to monitor in future studies.
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Affiliation(s)
- Sarah Jacob
- Hotchkiss Brain Institute, Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Ronak Kapadia
- Hotchkiss Brain Institute, Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Tyler Soule
- Hotchkiss Brain Institute, Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
| | - Honglin Luo
- Centre for Heart and Lung Innovation, Department of Pathology and Laboratory Medicine, University of British Columbia, Vancouver, BC, Canada
| | - Kerri L. Schellenberg
- Division of Neurology, Department of Medicine, University of Saskatchewan, Saskatoon, SK, Canada
| | - Renée N. Douville
- Division of Neurodegenerative Disorders, Department of Biology, Albrechtsen St. Boniface Research Centre, University of Winnipeg, Winnipeg, MB, Canada
| | - Gerald Pfeffer
- Hotchkiss Brain Institute, Department of Clinical Neurosciences, Cumming School of Medicine, University of Calgary, Calgary, AB, Canada
- Department of Medical Genetics, Alberta Child Health Research Institute, University of Calgary, Calgary, AB, Canada
- *Correspondence: Gerald Pfeffer
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9
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The Role of Exposomes in the Pathophysiology of Autoimmune Diseases II: Pathogens. PATHOPHYSIOLOGY 2022; 29:243-280. [PMID: 35736648 PMCID: PMC9231084 DOI: 10.3390/pathophysiology29020020] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2022] [Revised: 05/28/2022] [Accepted: 05/29/2022] [Indexed: 11/21/2022] Open
Abstract
In our continuing examination of the role of exposomes in autoimmune disease, we use this review to focus on pathogens. Infections are major contributors to the pathophysiology of autoimmune diseases through various mechanisms, foremost being molecular mimicry, when the structural similarity between the pathogen and a human tissue antigen leads to autoimmune reactivity and even autoimmune disease. The three best examples of this are oral pathogens, SARS-CoV-2, and the herpesviruses. Oral pathogens reach the gut, disturb the microbiota, increase gut permeability, cause local inflammation, and generate autoantigens, leading to systemic inflammation, multiple autoimmune reactivities, and systemic autoimmunity. The COVID-19 pandemic put the spotlight on SARS-CoV-2, which has been called “the autoimmune virus.” We explore in detail the evidence supporting this. We also describe how viruses, in particular herpesviruses, have a role in the induction of many different autoimmune diseases, detailing the various mechanisms involved. Lastly, we discuss the microbiome and the beneficial microbiota that populate it. We look at the role of the gut microbiome in autoimmune disorders, because of its role in regulating the immune system. Dysbiosis of the microbiota in the gut microbiome can lead to multiple autoimmune disorders. We conclude that understanding the precise roles and relationships shared by all these factors that comprise the exposome and identifying early events and root causes of these disorders can help us to develop more targeted therapeutic protocols for the management of this worldwide epidemic of autoimmunity.
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10
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Immunoinformatics prediction of potential immunodominant epitopes from human coronaviruses and association with autoimmunity. Immunogenetics 2022; 74:213-229. [PMID: 35006282 PMCID: PMC8744044 DOI: 10.1007/s00251-021-01250-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2021] [Accepted: 12/30/2021] [Indexed: 12/23/2022]
Abstract
Cross-reactivity between different human coronaviruses (HCoVs) might contribute to COVID-19 outcomes. Here, we aimed to predict conserved peptides among different HCoVs that could elicit cross-reacting B cell and T cell responses. Three hundred fifty-one full-genome sequences of HCoVs, including SARS-CoV-2 (51), SARS-CoV-1 (50), MERS-CoV (50), and common cold species OC43 (50), NL63 (50), 229E (50), and HKU1 (50) were downloaded aligned using Geneious Prime 20.20. Identification of epitopes in the conserved regions of HCoVs was carried out using the Immune Epitope Database (IEDB) to predict B- and T-cell epitopes. Further, we identified sequences that bind multiple common MHC and modeled the three-dimensional structures of the protein regions. The search yielded 73 linear and 35 discontinuous epitopes. A total of 16 B-cell and 19 T-cell epitopes were predicted through a comprehensive bioinformatic screening of conserved regions derived from HCoVs. The 16 potentially cross-reactive B-cell epitopes included 12 human proteins and four viral proteins among the linear epitopes. Likewise, we identified 19 potentially cross-reactive T-cell epitopes covering viral proteins. Interestingly, two conserved regions: LSFVSLAICFVIEQF (NSP2) and VVHSVNSLVSSMEVQSL (spike), contained several matches that were described epitopes for SARS-CoV. Most of the predicted B cells were buried within the SARS-CoV-2 protein regions’ functional domains, whereas T-cell stretched close to the functional domains. Additionally, most SARS-CoV-2 predicted peptides (80%) bound to different HLA types associated with autoimmune diseases. We identified a set of potential B cell and T cell epitopes derived from the HCoVs that could contribute to different diseases manifestation, including autoimmune disorders.
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Nervous System Manifestations of Arboviral Infections. CURRENT TROPICAL MEDICINE REPORTS 2022; 9:107-118. [PMID: 36124288 PMCID: PMC9476420 DOI: 10.1007/s40475-022-00262-9] [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] [Accepted: 03/22/2022] [Indexed: 01/11/2023]
Abstract
Purpose of Review Complex environmental factors and human intervention influence the spread of arthropod vectors and the cycle of transmission of arboviruses. The spectrum of clinical manifestations is diverse, ranging from serious presentations like viral hemorrhagic fever (e.g., dengue, yellow fever, rift valley fever) or shock syndromes (e.g., dengue virus) to organ-specific illness like meningoencephalitis. Recent Findings A spectrum of clinical neurologic syndromes with potential acute devastating consequences or long-term sequelae may result from some arboviral infections. Summary In this review, we describe some of the most frequent and emerging neuro-invasive arboviral infections, spectrum of neurologic disorders including encephalitis, meningitis, myelitis or poliomyelitis, acute demyelinating encephalomyelitis, Guillain-Barré syndrome, and ocular syndromes.
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Kocyigit BF, Akyol A. Reactive arthritis after COVID-19: a case-based review. Rheumatol Int 2021; 41:2031-2039. [PMID: 34550429 PMCID: PMC8456072 DOI: 10.1007/s00296-021-04998-x] [Citation(s) in RCA: 34] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/23/2021] [Accepted: 09/14/2021] [Indexed: 02/06/2023]
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the causative agent of the coronavirus disease 19 (COVID-19) pandemic, which is deeply affecting the whole world. In this new case for the scientific world, scientists are investigating the etiopathogenesis of viral infection-induced damage and have started to focus on the short and long-term immune system effects and alterations after SARS-CoV-2 infection. The case is here reported of a 53-year-old female patient with acute monoarthritis after SARS-CoV-2 infection, who responded adequately to 150 mg/day diclofenac treatment, and the available case reports are comprehensively reviewed. With the focus on arthritis after SARS-CoV2 infection, which emerges as a new pathological condition associated with COVID-19, it was aimed to examine the possible immunological mechanisms of post-COVID-19 arthritis based on the current data on SARS-CoV-2 and the known pathogenetic background of viral arthritis.
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Affiliation(s)
- Burhan Fatih Kocyigit
- Faculty of Medicine, Department of Physical Medicine and Rehabilitation, Kahramanmaraş Sütçü İmam University, Kahramanmaraş, Turkey.
| | - Ahmet Akyol
- Physiotherapy and Rehabilitation Application and Research Center, Hasan Kalyoncu University, Gaziantep, Turkey
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Shah S, Danda D, Kavadichanda C, Das S, Adarsh MB, Negi VS. Autoimmune and rheumatic musculoskeletal diseases as a consequence of SARS-CoV-2 infection and its treatment. Rheumatol Int 2020; 40:1539-1554. [PMID: 32666137 PMCID: PMC7360125 DOI: 10.1007/s00296-020-04639-9] [Citation(s) in RCA: 76] [Impact Index Per Article: 19.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Accepted: 06/28/2020] [Indexed: 12/15/2022]
Abstract
The coronavirus disease-2019 (COVID-19) pandemic is likely to pose new challenges to the rheumatology community in the near and distant future. Some of the challenges, like the severity of COVID-19 among patients on immunosuppressive agents, are predictable and are being evaluated with great care and effort across the globe. A few others, such as atypical manifestations of COVID-19 mimicking rheumatic musculoskeletal diseases (RMDs) are being reported. Like in many other viral infections, severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) infection can potentially lead to an array of rheumatological and autoimmune manifestations by molecular mimicry (cross-reacting epitope between the virus and the host), bystander killing (virus-specific CD8 + T cells migrating to the target tissues and exerting cytotoxicity), epitope spreading, viral persistence (polyclonal activation due to the constant presence of viral antigens driving immune-mediated injury) and formation of neutrophil extracellular traps. In addition, the myriad of antiviral drugs presently being tried in the treatment of COVID-19 can result in several rheumatic musculoskeletal adverse effects. In this review, we have addressed the possible spectrum and mechanisms of various autoimmune and rheumatic musculoskeletal manifestations that can be precipitated by COVID-19 infection, its therapy, and the preventive strategies to contain the infection.
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Affiliation(s)
- Sanket Shah
- Department of Clinical Immunology, Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry, India
| | - Debashish Danda
- Department of Clinical Immunology and Rheumatology, Christian Medical College, Vellore, India
| | - Chengappa Kavadichanda
- Department of Clinical Immunology, Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry, India
| | - Saibal Das
- Department of Clinical Pharmacology, Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry, India
| | - M. B. Adarsh
- Department of Clinical Immunology, Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry, India
| | - Vir Singh Negi
- Department of Clinical Immunology, Jawaharlal Institute of Postgraduate Medical Education and Research, Pondicherry, India
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Talotta R, Robertson E. Autoimmunity as the comet tail of COVID-19 pandemic. World J Clin Cases 2020; 8:3621-3644. [PMID: 32953841 PMCID: PMC7479552 DOI: 10.12998/wjcc.v8.i17.3621] [Citation(s) in RCA: 39] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2020] [Revised: 07/29/2020] [Accepted: 08/26/2020] [Indexed: 02/05/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection can give rise to different clinical manifestations that are directly related to viral tissue damage or indirectly induced by the antiviral immune response. Hyper-activation of the immune system in an attempt to eradicate the infection may trigger autoimmunity. Several immune-mediated disorders have been described in SARS-CoV-2-infected individuals. These include cutaneous rashes and vasculitis, autoimmune cytopenia, anti-phospholipid syndrome, central or peripheral neuropathy, myositis and myocarditis. On the other hand, rheumatic patients were reported to have similar coronavirus disease 2019 (COVID-19) incidence, morbidity and mortality rates compared to general population. This opinion review will summarize the crucial immunologic steps which occur during SARS-CoV-2-infection that may link autoimmunity to COVID-19 and provides an opportunity for further discussion regarding this association.
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Affiliation(s)
- Rossella Talotta
- Department of Clinical and Experimental Medicine, Rheumatology Unit, AOU “Gaetano Martino”, University of Messina, Messina 98100, Italy
| | - Erle Robertson
- Department of Otorhinolaryngology-Head and Neck Surgery, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA 19014, United States
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15
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Talotta R, Atzeni F, Laska MJ. Retroviruses in the pathogenesis of systemic lupus erythematosus: Are they potential therapeutic targets? Autoimmunity 2020; 53:177-191. [PMID: 32321325 DOI: 10.1080/08916934.2020.1755962] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The pathogenesis of systemic lupus erythematosus (SLE) is characterised by the hyper-activation of immunologic pathways related to the antiviral response. Exogenous and endogenous retroviruses, by integrating their DNA templates in the host cell genome, may epigenetically control the transcription of genes involved in the immune response. Furthermore, their nucleic acids or neo-synthesized proteins could stimulate the sensor molecules placed upstream the inflammatory cascade. Exogenous retroviruses, like human immunodeficiency virus, have been associated to SLE-like manifestations or to a fair SLE diagnosis. In addition, there is some evidence confirming a pathogenic role of human endogenous retroviruses in SLE. In line with these data, the use of antiretroviral agents could represent an attractive opportunity in the future therapeutic algorithms of this disease, but studies are still missing.
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Affiliation(s)
- Rossella Talotta
- Rheumatology Unit, Department of Clinical and Experimental Medicine, University Hospital "Gaetano Martino", Messina, Italy
| | - Fabiola Atzeni
- Rheumatology Unit, Department of Clinical and Experimental Medicine, University Hospital "Gaetano Martino", Messina, Italy
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Viruses and Autoimmunity: A Review on the Potential Interaction and Molecular Mechanisms. Viruses 2019; 11:v11080762. [PMID: 31430946 PMCID: PMC6723519 DOI: 10.3390/v11080762] [Citation(s) in RCA: 284] [Impact Index Per Article: 56.8] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2019] [Revised: 07/27/2019] [Accepted: 07/31/2019] [Indexed: 02/06/2023] Open
Abstract
For a long time, viruses have been shown to modify the clinical picture of several autoimmune diseases, including type 1 diabetes (T1D), systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), Sjögren’s syndrome (SS), herpetic stromal keratitis (HSK), celiac disease (CD), and multiple sclerosis (MS). Best examples of viral infections that have been proposed to modulate the induction and development of autoimmune diseases are the infections with enteric viruses such as Coxsackie B virus (CVB) and rotavirus, as well as influenza A viruses (IAV), and herpesviruses. Other viruses that have been studied in this context include, measles, mumps, and rubella. Epidemiological studies in humans and experimental studies in animal have shown that viral infections can induce or protect from autoimmunopathologies depending on several factors including genetic background, host-elicited immune responses, type of virus strain, viral load, and the onset time of infection. Still, data delineating the clear mechanistic interaction between the virus and the immune system to induce autoreactivity are scarce. Available data indicate that viral-induced autoimmunity can be activated through multiple mechanisms including molecular mimicry, epitope spreading, bystander activation, and immortalization of infected B cells. Contrarily, the protective effects can be achieved via regulatory immune responses which lead to the suppression of autoimmune phenomena. Therefore, a better understanding of the immune-related molecular processes in virus-induced autoimmunity is warranted. Here we provide an overview of the current understanding of viral-induced autoimmunity and the mechanisms that are associated with this phenomenon.
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Ocular antigen does not cause disease unless presented in the context of inflammation. Sci Rep 2017; 7:14226. [PMID: 29079770 PMCID: PMC5660195 DOI: 10.1038/s41598-017-14618-z] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2017] [Accepted: 10/11/2017] [Indexed: 12/14/2022] Open
Abstract
Ocular antigens are sequestered behind the blood-retina barrier and the ocular environment protects ocular tissues from autoimmune attack. The signals required to activate autoreactive T cells and allow them to cause disease in the eye remain in part unclear. In particular, the consequences of peripheral presentation of ocular antigens are not fully understood. We examined peripheral expression and presentation of ocular neo-self-antigen in transgenic mice expressing hen egg lysozyme (HEL) under a retina-specific promoter. High levels of HEL were expressed in the eye compared to low expression throughout the lymphoid system. Adoptively transferred naïve HEL-specific CD4+ T cells proliferated in the eye draining lymph nodes, but did not induce uveitis. By contrast, systemic infection with a murine cytomegalovirus (MCMV) engineered to express HEL induced extensive proliferation of transferred naïve CD4+ T cells, and significant uveoretinitis. In this model, wild-type MCMV, lacking HEL, did not induce overt uveitis, suggesting that disease is mediated by antigen-specific peripherally activated CD4+ T cells that infiltrate the retina. Our results demonstrate that retinal antigen is presented to T cells in the periphery under physiological conditions. However, when the same antigen is presented during viral infection, antigen-specific T cells access the retina and autoimmune uveitis ensues.
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Arleevskaya MI, Kravtsova OA, Lemerle J, Renaudineau Y, Tsibulkin AP. How Rheumatoid Arthritis Can Result from Provocation of the Immune System by Microorganisms and Viruses. Front Microbiol 2016; 7:1296. [PMID: 27582741 PMCID: PMC4987382 DOI: 10.3389/fmicb.2016.01296] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2015] [Accepted: 08/05/2016] [Indexed: 12/12/2022] Open
Abstract
The pathogenesis of rheumatoid arthritis (RA), similar to development of a majority of inflammatory and autoimmune disorders, is largely due to an inappropriate or inadequate immune response to environmental challenges. Among these challenges, infectious agents are the undisputed leaders. Since the 1870s, an impressive list of microorganisms suspected of provoking RA has formed, and the list is still growing. Although a definite causative link between a specific infectious agent and the disease has not been established, several arguments support such a possibility. First, in the absence of a defined pathogen, the spectrum of triggering agents may include polymicrobial communities or the cumulative effect of several bacterial/viral factors. Second, the range of infectious episodes (i.e., clinical manifestations caused by pathogens) may vary in the process of RA development from preclinical to late-stage disease. Third, infectious agents might not trigger RA in all cases, but trigger it in a certain subset of the cases, or the disease onset may arise from an unfortunate combination of infections along with, for example, psychological stress and/or chronic joint tissue microtrauma. Fourth, genetic differences may have a role in the disease onset. In this review, two aspects of the problem of “microorganisms and RA” are debated. First, is there an acquired immune deficiency and, in turn, susceptibility to infections in RA patients due to the too frequent and too lengthy infections, which at last break the tolerance of self antigens? Or, second, is there a congenital deficiency in tolerance and inflammation control, which may occur even with ordinary infection frequency and duration?
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Affiliation(s)
- Marina I Arleevskaya
- Central Research Laboratory, Department of Clinical Laboratory Diagnostics, Kazan State Medical Academy Kazan, Russia
| | - Olga A Kravtsova
- Department of Biochemistry and Biotechnology, Kazan Federal University Kazan, Russia
| | - Julie Lemerle
- Laboratory of Immunology and Immunotherapy, CHU Morvan Brest, France
| | - Yves Renaudineau
- Laboratory of Immunology and Immunotherapy, CHU Morvan Brest, France
| | - Anatoly P Tsibulkin
- Central Research Laboratory, Department of Clinical Laboratory Diagnostics, Kazan State Medical Academy Kazan, Russia
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Cheng HJ, Luo YH, Wan SW, Lin CF, Wang ST, Hung NT, Liu CC, Ho TS, Liu HS, Yeh TM, Lin YS. Correlation between serum levels of anti-endothelial cell autoantigen and anti-dengue virus nonstructural protein 1 antibodies in dengue patients. Am J Trop Med Hyg 2015; 92:989-95. [PMID: 25758647 DOI: 10.4269/ajtmh.14-0162] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2014] [Accepted: 01/05/2015] [Indexed: 01/08/2023] Open
Abstract
We have previously shown that anti-dengue virus nonstructural protein 1 (anti-DENV NS1) antibodies cross-react with endothelial cells, and several autoantigens have been identified. This study shows that the antibody levels against these self-proteins are higher in sera from patients with dengue hemorrhagic fever (DHF) than those in control sera. Anti-protein disulfide isomerase (PDI) and anti-heat shock protein 60 (anti-HSP60) IgM levels correlated with both anti-endothelial cells and anti-DENV NS1 IgM titers. A cross-reactive epitope on the NS1 amino acid residues 311-330 (P311-330) had been predicted. We further found that there were higher IgM and IgG levels against P311-330 in DHF patients' sera than those in the control sera. In addition, correlations were observed between anti-PDI with anti-P311-330 IgM and IgG levels, respectively. Therefore, our results indicate that DENV NS1 P311-330 is a major epitope for cross-reactive antibodies to PDI on the endothelial cell surface, which may play an important role in DENV infection-induced autoimmunity.
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Affiliation(s)
- Hsien-Jen Cheng
- Institute of Basic Medical Sciences, Department of Microbiology and Immunology, Institute of Clinical Medicine, Institute of Gerontology, Department of Pediatrics, Department of Medical Laboratory Science and Biotechnology, National Cheng Kung University Medical College, Tainan, Taiwan; Department of Microbiology and Immunology, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Dengue Hemorrhagic Fever, Children's Hospital No. 1, Ho Chi Minh City, Vietnam
| | - Yueh-Hsia Luo
- Institute of Basic Medical Sciences, Department of Microbiology and Immunology, Institute of Clinical Medicine, Institute of Gerontology, Department of Pediatrics, Department of Medical Laboratory Science and Biotechnology, National Cheng Kung University Medical College, Tainan, Taiwan; Department of Microbiology and Immunology, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Dengue Hemorrhagic Fever, Children's Hospital No. 1, Ho Chi Minh City, Vietnam
| | - Shu-Wen Wan
- Institute of Basic Medical Sciences, Department of Microbiology and Immunology, Institute of Clinical Medicine, Institute of Gerontology, Department of Pediatrics, Department of Medical Laboratory Science and Biotechnology, National Cheng Kung University Medical College, Tainan, Taiwan; Department of Microbiology and Immunology, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Dengue Hemorrhagic Fever, Children's Hospital No. 1, Ho Chi Minh City, Vietnam
| | - Chiou-Feng Lin
- Institute of Basic Medical Sciences, Department of Microbiology and Immunology, Institute of Clinical Medicine, Institute of Gerontology, Department of Pediatrics, Department of Medical Laboratory Science and Biotechnology, National Cheng Kung University Medical College, Tainan, Taiwan; Department of Microbiology and Immunology, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Dengue Hemorrhagic Fever, Children's Hospital No. 1, Ho Chi Minh City, Vietnam
| | - Shan-Tair Wang
- Institute of Basic Medical Sciences, Department of Microbiology and Immunology, Institute of Clinical Medicine, Institute of Gerontology, Department of Pediatrics, Department of Medical Laboratory Science and Biotechnology, National Cheng Kung University Medical College, Tainan, Taiwan; Department of Microbiology and Immunology, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Dengue Hemorrhagic Fever, Children's Hospital No. 1, Ho Chi Minh City, Vietnam
| | - Nguyen Thanh Hung
- Institute of Basic Medical Sciences, Department of Microbiology and Immunology, Institute of Clinical Medicine, Institute of Gerontology, Department of Pediatrics, Department of Medical Laboratory Science and Biotechnology, National Cheng Kung University Medical College, Tainan, Taiwan; Department of Microbiology and Immunology, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Dengue Hemorrhagic Fever, Children's Hospital No. 1, Ho Chi Minh City, Vietnam
| | - Ching-Chuan Liu
- Institute of Basic Medical Sciences, Department of Microbiology and Immunology, Institute of Clinical Medicine, Institute of Gerontology, Department of Pediatrics, Department of Medical Laboratory Science and Biotechnology, National Cheng Kung University Medical College, Tainan, Taiwan; Department of Microbiology and Immunology, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Dengue Hemorrhagic Fever, Children's Hospital No. 1, Ho Chi Minh City, Vietnam
| | - Tzong-Shiann Ho
- Institute of Basic Medical Sciences, Department of Microbiology and Immunology, Institute of Clinical Medicine, Institute of Gerontology, Department of Pediatrics, Department of Medical Laboratory Science and Biotechnology, National Cheng Kung University Medical College, Tainan, Taiwan; Department of Microbiology and Immunology, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Dengue Hemorrhagic Fever, Children's Hospital No. 1, Ho Chi Minh City, Vietnam
| | - Hsiao-Sheng Liu
- Institute of Basic Medical Sciences, Department of Microbiology and Immunology, Institute of Clinical Medicine, Institute of Gerontology, Department of Pediatrics, Department of Medical Laboratory Science and Biotechnology, National Cheng Kung University Medical College, Tainan, Taiwan; Department of Microbiology and Immunology, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Dengue Hemorrhagic Fever, Children's Hospital No. 1, Ho Chi Minh City, Vietnam
| | - Trai-Ming Yeh
- Institute of Basic Medical Sciences, Department of Microbiology and Immunology, Institute of Clinical Medicine, Institute of Gerontology, Department of Pediatrics, Department of Medical Laboratory Science and Biotechnology, National Cheng Kung University Medical College, Tainan, Taiwan; Department of Microbiology and Immunology, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Dengue Hemorrhagic Fever, Children's Hospital No. 1, Ho Chi Minh City, Vietnam
| | - Yee-Shin Lin
- Institute of Basic Medical Sciences, Department of Microbiology and Immunology, Institute of Clinical Medicine, Institute of Gerontology, Department of Pediatrics, Department of Medical Laboratory Science and Biotechnology, National Cheng Kung University Medical College, Tainan, Taiwan; Department of Microbiology and Immunology, College of Medicine, Taipei Medical University, Taipei, Taiwan; Department of Dengue Hemorrhagic Fever, Children's Hospital No. 1, Ho Chi Minh City, Vietnam
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Abstract
UNLABELLED Regulatory T (Treg) cells are important in the maintenance of self-tolerance, and the depletion of Treg cells correlates with autoimmune development. It has been shown that type I interferon (IFN) responses induced early in the infection of mice can drive memory (CD44hi) CD8 and CD4 T cells into apoptosis, and we questioned here whether the apoptosis of CD44-expressing Treg cells might be involved in the infection-associated autoimmune development. Instead, we found that Treg cells were much more resistant to apoptosis than CD44hi CD8 and CD4 T cells at days 2 to 3 after lymphocytic choriomeningitis virus infection, when type I IFN levels are high. The infection caused a downregulation of the interleukin-7 (IL-7) receptor, needed for survival of conventional T cells, while increasing on Treg cells the expression of the high-affinity IL-2 receptor, needed for STAT5-dependent survival of Treg cells. The stably maintained Treg cells early during infection may explain the relatively low incidence of autoimmune manifestations among infected patients. IMPORTANCE Autoimmune diseases are controlled in part by regulatory T cells (Treg) and are thought to sometimes be initiated by viral infections. We tested the hypothesis that Treg may die off at early stages of infection, when virus-induced factors kill other lymphocyte types. Instead, we found that Treg resisted this cell death, perhaps reducing the tendency of viral infections to cause immune dysfunction and induce autoimmunity.
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Abstract
Research into the pathogenesis of dengue fever has exploded over the last half-century, with issues that were considered simple becoming more complex as additional data are found. This has led to the development of a number of controversies that are being studied across the globe and debated in the literature. In this paper, the following six controversies are analysed and, where possible, resolved: the 1997 World Health Organization (WHO) case definition of dengue haemorrhagic fever (DHF) is not useful; DHF is not significantly associated with secondary dengue infection; DHF results from infection with a 'virulent' dengue virus; DHF is owing to abnormal T-cell responses; DHF results from auto-immune responses; and DHF results from direct infection of endothelial cells.
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Affiliation(s)
- Scott B Halstead
- Dengue Vaccine Initiative, International Vaccine Institute, Seoul, Korea.
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Corthals AP. Multiple sclerosis is not a disease of the immune system. QUARTERLY REVIEW OF BIOLOGY 2012; 86:287-321. [PMID: 22384749 DOI: 10.1086/662453] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Multiple sclerosis is a complex neurodegenerative disease, thought to arise through autoimmunity against antigens of the central nervous system. The autoimmunity hypothesis fails to explain why genetic and environmental risk factors linked to the disease in one population tend to be unimportant in other populations. Despite great advances in documenting the cell and molecular mechanisms underlying MS pathophysiology, the autoimmunity framework has also been unable to develop a comprehensive explanation of the etiology of the disease. I propose a new framework for understanding MS as a dysfunction of the metabolism of lipids. Specifically, the homeostasis of lipid metabolism collapses during acute-phase inflammatory response triggered by a pathogen, trauma, or stress, starting a feedback loop of increased oxidative stress, inflammatory response, and proliferation of cytoxic foam cells that cross the blood brain barrier and both catabolize myelin and prevent remyelination. Understanding MS as a chronic metabolic disorder illuminates four aspects of disease onset and progression: 1) its pathophysiology; 2) genetic susceptibility; 3) environmental and pathogen triggers; and 4) the skewed sex ratio of patients. It also suggests new avenues for treatment.
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Affiliation(s)
- Angelique P Corthals
- Department of Sciences, John Jay College of Criminal Justice, City University of New York New York, New York 10019, USA.
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Surface assembly of poly(I:C) on PEGylated microspheres to shield from adverse interactions with fibroblasts. J Control Release 2012; 159:204-14. [PMID: 22349184 DOI: 10.1016/j.jconrel.2012.02.002] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2011] [Revised: 02/01/2012] [Accepted: 02/04/2012] [Indexed: 11/20/2022]
Abstract
By expressing an array of pattern recognition receptors (PRRs), fibroblasts play an important role in stimulating and modulating the response of the innate immune system. The TLR3 ligand polyriboinosinic acid-polyribocytidylic acid, poly(I:C), a mimic of viral dsRNA, is a vaccine adjuvant candidate to activate professional antigen presenting cells (APCs). However, owing to its ligation with extracellular TLR3 on fibroblasts, subcutaneously administered poly(I:C) bears danger towards autoimmunity. It is thus in the interest of its clinical safety to deliver poly(I:C) in such a way that its activation of professional APCs is as efficacious as possible, whereas its interference with non-immune cells such as fibroblasts is controlled or even avoided. Complementary to our previous work with monocyte-derived dendritic cells (MoDCs), here we sought to control the delivery of poly(I:C) surface-assembled on microspheres to human foreskin fibroblasts (HFFs). Negatively charged polystyrene (PS) microspheres were equipped with a poly(ethylene glycol) (PEG) corona through electrostatically driven coatings with a series of polycationic poly(L-lysine)-graft-poly(ethylene glycol) copolymers, PLL-g-PEG, of varying grafting ratios g from 2.2 up to 22.7. Stable surface assembly of poly(I:C) was achieved by incubation of polymer-coated microspheres with aqueous poly(I:C) solutions. Notably, recognition of both surface-assembled and free poly(I:C) by extracellular TLR3 on HFFs halted their phagocytic activity. Ligation of surface-assembled poly(I:C) with extracellular TLR3 on HFFs could be controlled by tuning the grafting ratio g and thus the chain density of the PEG corona. When assembled on PLL-5.7-PEG-coated microspheres, poly(I:C) was blocked from triggering class I MHC molecule expression on HFFs. Secretion of interleukin (IL)-6 by HFFs after exposure to surface-assembled poly(I:C) was distinctly lower as compared to free poly(I:C). Overall, surface assembly of poly(I:C) may have potential to contribute to the clinical safety of this vaccine adjuvant candidate.
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Abstract
A large range of human viruses are associated with the development of arthritis or arthralgia. Although there are many parallels with autoimmune arthritides, there is little evidence that viral arthritides lead to autoimmune disease. In humans viral arthritides usually last from weeks to months, can be debilitating, and are usually treated with non-steroidal anti-inflammatory drugs, but with variable success. Viral arthritides likely arise from immunopathological inflammatory responses directed at viruses and/or their products residing and/or replicating within joint tissues. Macrophages recruited by monocyte chemoattractant protein-1 (MCP-1/CCL2) and activated by interferon, and proinflammatory mediators like tumour necrosis factor alpha, interferon gamma, interleukin-6 and interleukin-1beta appear to be common elements in this group of diseases. The challenge for new treatments is to target excessive inflammation without compromising anti-viral immunity. Recent evidence from mouse models suggests targeting MCP-1 or complement may emerge as viable new treatment options for viral arthritides.
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Wasserman EE, Nelson K, Rose NR, Rhode C, Pillion JP, Seaberg E, Talor MV, Burek L, Eaton W, Duggan A, Yolken RH. Infection and thyroid autoimmunity: A seroepidemiologic study of TPOaAb. Autoimmunity 2009; 42:439-46. [DOI: 10.1080/08916930902787716] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Sehrawat S, Suryawanshi A, Hirashima M, Rouse BT. Role of Tim-3/galectin-9 inhibitory interaction in viral-induced immunopathology: shifting the balance toward regulators. THE JOURNAL OF IMMUNOLOGY 2009; 182:3191-201. [PMID: 19234217 DOI: 10.4049/jimmunol.0803673] [Citation(s) in RCA: 93] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Controlling chronic immunoinflammatory diseases such as lesions in the eye caused by infection with HSV represents a therapeutic challenge. Since CD4(+) T cells are the primary orchestrators of lesions, targeting activated CD4(+) T cell subsets and increasing the representation of cells that express regulatory function would be a logical therapeutic approach. We show that this outcome can be achieved by therapy, systemic or local, with the lectin family member galectin-9. This molecule, which is a natural product of many cell types, acts as a ligand to the inhibitory molecule TIM-3 (T cell Ig and mucin-3) that is expressed by activated but not naive T cells. We show that 50% or more of T cells in ocular lesions caused by HSV in mice express TIM-3 and that blocking signals from its natural ligand with a mAb results in more severe lesions. More importantly, the provision of additional galectin-9, either systemically or more effectively by local subconjuctival administration, diminished the severity of stromal keratitis lesions as well as the extent of corneal neovascularization. Multiple mechanisms were involved in inhibitory effects. These included apoptosis of the orchestrating effector T cells with consequent reduction of proinflammatory cytokines and an increase in the representation of two separate subtypes of regulatory cells as well as inhibitory effects on the production of molecules involved in neovascularization, an essential component of stromal keratitis pathogenesis. Our results indicate that galectin-9 therapy may represent a useful approach to control HSV-induced lesions, the most common cause of infectious blindness in the Western world.
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Affiliation(s)
- Sharvan Sehrawat
- Comparative and Experimental Medicine, College of Veterinary Medicine, The University of Tennessee, Knoxville, TN 37996, USA.
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Proteomic Analysis of Endothelial Cell Autoantigens Recognized by Anti-Dengue Virus Nonstructural Protein 1 Antibodies. Exp Biol Med (Maywood) 2009; 234:63-73. [DOI: 10.3181/0805-rm-147] [Citation(s) in RCA: 58] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023] Open
Abstract
We previously showed the occurrence of autoimmune responses in dengue virus (DV) infection, which has potential implications for the pathogenesis of dengue hemorrhagic syndrome. In the present study, we have used a proteomic analysis to identify several candidate proteins on HMEC-1 endothelial cells recognized by anti-DV nonstructural protein 1 (NS1) antibodies. The target proteins, including ATP synthase β chain, protein disulfide isomerase, vimentin, and heat shock protein 60, co-localize with anti-NS1 binding sites on nonfixed HMEC-1 cells using immunohistochemical double staining and confocal microscopy. The cross-reactivity of anti-target protein antibodies with HMEC-1 cells was inhibited by NS1 protein pre-absorption. Furthermore, a cross-reactive epitope on NS1 amino acid residues 311–330 (P311–330) was predicted using homologous sequence alignment. The reactivity of dengue hemorrhagic patient sera with HMEC-1 cells was blocked by synthetic peptide P311–330 pre-absorption. Taken together, our results identify putative targets on endothelial cells recognized by anti-DV NS1 antibodies, where NS1 P311–330 possesses the shared epitope.
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García-Quintanilla A. Overcoming viral escape with vaccines that generate and display antigen diversity in vivo. Virol J 2007; 4:125. [PMID: 18034902 PMCID: PMC2169210 DOI: 10.1186/1743-422x-4-125] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2007] [Accepted: 11/22/2007] [Indexed: 11/11/2022] Open
Abstract
Background Viral diversity is a key problem for the design of effective and universal vaccines. Virtually, a vaccine candidate including most of the diversity for a given epitope would force the virus to create escape mutants above the viability threshold or with a high fitness cost. Presentation of the hypothesis Therefore, I hypothesize that priming the immune system with polyvalent vaccines where each single vehicle generates and displays multiple antigen variants in vivo, will elicit a broad and long-lasting immune response able to avoid viral escape. Testing the hypothesis To this purpose, I propose the use of yeasts that carry virus-like particles designed to pack the antigen-coding RNA inside and replicate it via RNA-dependent RNA polymerase. This would produce diversity in vivo limited to the target of interest and without killing the vaccine vehicle. Implications of the hypothesis This approach is in contrast with peptide cocktails synthesized in vitro and polyvalent strategies where every cell or vector displays a single or definite number of mutants; but similarly to all them, it should be able to overcome original antigenic sin, avoid major histocompatibility complex restriction, and elicit broad cross-reactive immune responses. Here I discuss additional advantages such as minimal global antagonism or those derived from using a yeast vehicle, and potential drawbacks like autoimmunity. Diversity generated by this method could be monitored both genotypically and phenotypically, and therefore selected or discarded before use if needed.
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Affiliation(s)
- Joong Gon Kim
- Department of Pediatrics, College of Medicine, Seoul National University, Seoul, Korea
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Lin CF, Wan SW, Cheng HJ, Lei HY, Lin YS. Autoimmune Pathogenesis in Dengue Virus Infection. Viral Immunol 2006; 19:127-32. [PMID: 16817755 DOI: 10.1089/vim.2006.19.127] [Citation(s) in RCA: 91] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The pathogenic mechanisms of dengue hemorrhagic fever and dengue shock syndrome (DHF/DSS) caused by dengue virus (DV) infection remain unresolved. Patients with DHF/DSS are characterized by several manifestations, including severe thrombocytopenia, vascular leakage, and hepatomegaly. In addition to the effect of virus load and virus variation, abnormal immune responses of the host after DV infection may also account for the progression of DHF/DSS. Actually, viral autoimmunity is involved in the pathogenesis of numerous viral infections, such as human immunodeficiency virus, human hepatitis C virus, human cytomegalovirus, herpes simplex virus, Epstein- Barr virus, and DV. In this review, we discuss the implications of autoimmunity in dengue pathogenesis. Antibodies directed against DV nonstructural protein 1 (NS1) showed cross-reactivity with human platelets and endothelial cells, which lead to platelet and endothelial cell damage and inflammatory activation. Based on these findings, we hypothesize that anti-DV NS1 is involved in the pathogenesis of DF and DHF/DSS, and this may provide important information in dengue vaccine development.
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Affiliation(s)
- Chiou-Feng Lin
- Department of Microbiology and Immunology, National Cheng Kung University Medical College, Tainan, Taiwan
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