251
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Brooks WH. A Review of Autoimmune Disease Hypotheses with Introduction of the "Nucleolus" Hypothesis. Clin Rev Allergy Immunol 2018; 52:333-350. [PMID: 27324247 DOI: 10.1007/s12016-016-8567-2] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Numerous hypotheses have been proposed in order to explain the complexity of autoimmune diseases. These hypotheses provide frameworks towards understanding the relations between triggers, autoantigen development, symptoms, and demographics. However, testing and refining these hypotheses are difficult tasks since autoimmune diseases have a potentially overwhelming number of variables due to the influence on autoimmune diseases from environmental factors, genetics, and epigenetics. Typically, the hypotheses are narrow in scope, for example, explaining the diseases in terms of genetics without defining detailed roles for environmental factors or epigenetics. Here, we present a brief review of the major hypotheses of autoimmune diseases including a new one related to the consequences of abnormal nucleolar interactions with chromatin, the "nucleolus" hypothesis which was originally termed the "inactive X chromosome and nucleolus nexus" hypothesis. Indeed, the dynamic nucleolus can expand as part of a cellular stress response and potentially engulf portions of chromatin, leading to disruption of the chromatin. The inactive X chromosome (a.k.a. the Barr body) is particularly vulnerable due to its close proximity to the nucleolus. In addition, the polyamines, present at high levels in the nucleolus, are also suspected of contributing to the development of autoantigens.
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Affiliation(s)
- Wesley H Brooks
- Department of Chemistry, University of South Florida, 4202 E Fowler Ave, CHE205, Tampa, FL, 33620, USA.
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252
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Tu J, Wang X, Geng G, Xue X, Lin X, Zhu X, Sun L. The Possible Effect of B-Cell Epitopes of Epstein-Barr Virus Early Antigen, Membrane Antigen, Latent Membrane Protein-1, and -2A on Systemic Lupus Erythematosus. Front Immunol 2018; 9:187. [PMID: 29497417 PMCID: PMC5819577 DOI: 10.3389/fimmu.2018.00187] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2017] [Accepted: 01/22/2018] [Indexed: 12/31/2022] Open
Abstract
This study was aimed to evaluate the role of B-cell epitopes of Epstein-Barr virus (EBV) Early antigen protein D (EA), envelope glycoprotein GP340/membrane antigen (MA), latent membrane protein (LMP)-1, and LMP-2A in systemic lupus erythematosus (SLE). B-cell epitopes were predicted by analyzing secondary structure, transmembrane domains, surface properties, and homological comparison. 60 female mice were randomized equally into 12 groups: 1-10 groups were immunized by epitope peptides (EPs) 1-10, respectively, while 11 and 12 groups were PBS and Keyhole limpet hemocyanin (KLH) control groups. Immunoglobulin G (IgG) and autoantibody to nuclear antigen (ANA) concentrations in mice serum were determined at week 8. Indirect levels of EP1-10 were further detected by enzyme-linked immuno sorbent assay (ELISA) in 119 SLE patients and 64 age- and gender-matched health controls (HCs). 10 probable EBV EA, MA, LMP-1, and LMP-2A B-cell epitopes related to SLE self-antigens were predicted and corresponding EP1-10 were synthesized. IgG concentrations at week 8 were increased in EP1-10 and KLH groups compared with PBS group in mice; while ANA levels were elevated in only EP1-4, EP6-7, and EP10 groups compared to KLH group by ELISA, and ANA-positive rates were increased in only EP1, EP2, EP4, EP6, and EP10 groups by indirect immunofluorescence assay. EP1-4, EP6, and EP10 indirect levels were increased in SLE patients than HCs, while EP1, EP3, EP6, and EP9 were correlated with SLE disease activity index score. In conclusion, EBV EA, MA, LMP-1, and LMP-2A B-cell EPs increased SLE-related autoantibodies in mice, and their indirect levels might be served as potential biomarkers for SLE diagnosis and disease severity.
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Affiliation(s)
- Jianxin Tu
- Department of Rheumatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiaobing Wang
- Department of Rheumatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Guannan Geng
- Central Laboratory, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - Xiangyang Xue
- Department of Microbiology and Immunology, Basic Medical College of Wenzhou Medical University, Wenzhou, China
| | - Xiangyang Lin
- Medical Laboratory, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Xiaochun Zhu
- Department of Rheumatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - Li Sun
- Department of Rheumatology, The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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Abstract
HLA associations, T cell receptor (TCR) repertoire bias, and sex bias have independently been shown for many diseases. While some immunological differences between the sexes have been described, they do not fully explain bias in men toward many infections/cancers, and toward women in autoimmunity. Next-generation TCR variable beta chain (TCRBV) immunosequencing of 824 individuals was evaluated in a multiparametric analysis including HLA-A -B/MHC class I background, TCRBV usage, sex, age, ethnicity, and TCRBV selection/expansion dynamics. We found that HLA-associated shaping of TCRBV usage differed between the sexes. Furthermore, certain TCRBVs were selected and expanded in unison. Correlations between these TCRBV relationships and biochemical similarities in HLA-binding positions were different in CD8 T cells of patients with autoimmune diseases (multiple sclerosis and rheumatoid arthritis) compared with healthy controls. Within patients, men showed higher TCRBV relationship Spearman's rhos in relation to HLA-binding position similarities compared with women. In line with this, CD8 T cells of men with autoimmune diseases also showed higher degrees of TCRBV perturbation compared with women. Concerted selection and expansion of CD8 T cells in patients with autoimmune diseases, but especially in men, appears to be less dependent on high HLA-binding similarity than in CD4 T cells. These findings are consistent with studies attributing autoimmunity to processes of epitope spreading and expansion of low-avidity T cell clones and may have further implications for the interpretation of pathogenic mechanisms of infectious and autoimmune diseases with known HLA associations. Reanalysis of some HLA association studies, separating the data by sex, could be informative.
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254
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Szekely Y, Arbel Y. A Review of Interleukin-1 in Heart Disease: Where Do We Stand Today? Cardiol Ther 2018; 7:25-44. [PMID: 29417406 PMCID: PMC5986669 DOI: 10.1007/s40119-018-0104-3] [Citation(s) in RCA: 97] [Impact Index Per Article: 16.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Indexed: 12/16/2022] Open
Abstract
Cardiovascular diseases are the leading cause of death worldwide. Research in the last two decades has emphasized the inflammatory process as a key component in the pathogenesis of many of them. The Interleukin-1 family is a pivotal element of inflammation and has been well studied as a therapeutic target in various inflammatory states. Recent trials have explored the effect of Interleukin-1 blockade in cardiovascular diseases and initial evidence of the relevance of such treatment in this field of medicine accumulate. This review will describe the role of Interleukin-1 in heart diseases and the potential therapeutic effect of its blockade in such diseases.
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Affiliation(s)
- Yishay Szekely
- Department of Cardiology, Tel Aviv Sourasky Medical Center Affiliated to the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.
| | - Yaron Arbel
- Department of Cardiology, Tel Aviv Sourasky Medical Center Affiliated to the Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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255
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Evaluation of the Relationship between Alopecia Areata and Viral Antigen Exposure. Am J Clin Dermatol 2018; 19:119-126. [PMID: 28801732 DOI: 10.1007/s40257-017-0312-y] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
BACKGROUND Alopecia areata (AA) is an autoimmune disease characterized by non-scarring alopecia with T-cell infiltration at the affected hair follicle. OBJECTIVE Our aim was to study the potential link between hepatitis B virus (HBV) antigen exposure and AA. METHODS Two pediatric patients with AA following hepatitis B vaccination were identified in a general dermatology clinic. A bioinformatics analysis and an electronic medical record (EMR) database query were performed at the University of Rochester Medical Center to identify patients with AA, coexisting viral infections, vaccinations, or interferon (IFN) therapy in order to determine if the presence of AA and these conditions was higher than in AA patients without these associated conditions or therapy. RESULTS An increased frequency of AA among those who received the HBV surface protein antigen [odds ratio (OR) 2.7, p < 0.0001] was identified, and an independent analysis revealed an increased frequency of AA in those receiving IFN-β treatment (OR 8.1, p < 0.05). One potential antigenic target identified was SLC45A2, a melanosomal transport protein important in skin and hair pigmentation. The longest potential vaccine peptide fragment match (8-mer) was to a segment of natural killer (NK) cell inhibitory receptors, KIR3DL2 and KIR3DL1. Predictive modeling of major histocompatibility complex (MHC)-peptide binding demonstrated potential binding of this peptide to MHC relevant to AA. LIMITATIONS The results will need to be verified in additional patient databases allowing analysis of temporal relationships, and with molecular experiments of the identified antigens. CONCLUSIONS Our data confirm associations between viral infection and IFN treatment with AA. It establishes that the hepatitis B surface protein antigen has shared epitopes with human killer immunoglobulin-like receptors.
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256
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Gharagozloo M, Gris KV, Mahvelati T, Amrani A, Lukens JR, Gris D. NLR-Dependent Regulation of Inflammation in Multiple Sclerosis. Front Immunol 2018; 8:2012. [PMID: 29403486 PMCID: PMC5778124 DOI: 10.3389/fimmu.2017.02012] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2017] [Accepted: 12/28/2017] [Indexed: 12/22/2022] Open
Abstract
Multiple sclerosis (MS) is an autoimmune disease of the central nervous system (CNS) associated with inappropriate activation of lymphocytes, hyperinflammatory responses, demyelination, and neuronal damage. In the past decade, a number of biological immunomodulators have been developed that suppress the peripheral immune responses and slow down the progression of the disease. However, once the inflammation of the CNS has commenced, it can cause serious permanent neuronal damage. Therefore, there is a need for developing novel therapeutic approaches that control and regulate inflammatory responses within the CNS. Nucleotide-binding oligomerization domain (NOD)-like receptors (NLRs) are intracellular regulators of inflammation expressed by many cell types within the CNS. They redirect multiple signaling pathways initiated by pathogens and molecules released by injured tissues. NLR family members include positive regulators of inflammation, such as NLRP3 and NLRC4 and anti-inflammatory NLRs, such as NLRX1 and NLRP12. They exert immunomodulatory effect at the level of peripheral immune responses, including antigen recognition and lymphocyte activation and differentiation. Also, NLRs regulate tissue inflammatory responses. Understanding the molecular mechanisms that are placed at the crossroad of innate and adaptive immune responses, such as NLR-dependent pathways, could lead to the discovery of new therapeutic targets. In this review, we provide a summary of the role of NLRs in the pathogenesis of MS. We also summarize how anti-inflammatory NLRs regulate the immune response within the CNS. Finally, we speculate the therapeutic potential of targeting NLRs in MS.
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Affiliation(s)
- Marjan Gharagozloo
- Program of Immunology, Faculty of Medicine and Health Sciences, Department of Pediatrics, CR-CHUS, University of Sherbrooke, Sherbrooke, QC, Canada
| | - Katsiaryna V. Gris
- Program of Immunology, Faculty of Medicine and Health Sciences, Department of Pediatrics, CR-CHUS, University of Sherbrooke, Sherbrooke, QC, Canada
| | - Tara Mahvelati
- Program of Immunology, Faculty of Medicine and Health Sciences, Department of Pediatrics, CR-CHUS, University of Sherbrooke, Sherbrooke, QC, Canada
| | - Abdelaziz Amrani
- Program of Immunology, Faculty of Medicine and Health Sciences, Department of Pediatrics, CR-CHUS, University of Sherbrooke, Sherbrooke, QC, Canada
| | - John R. Lukens
- Center for Brain Immunology and Glia, Department of Neuroscience, School of Medicine, University of Virginia, Charlottesville, VA, United States
| | - Denis Gris
- Program of Immunology, Faculty of Medicine and Health Sciences, Department of Pediatrics, CR-CHUS, University of Sherbrooke, Sherbrooke, QC, Canada
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257
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Zhou T, Li D, Chen Q, Hua H, Li C. Correlation Between Oral Lichen Planus and Thyroid Disease in China: A Case-Control Study. Front Endocrinol (Lausanne) 2018; 9:330. [PMID: 29967591 PMCID: PMC6015892 DOI: 10.3389/fendo.2018.00330] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2018] [Accepted: 05/31/2018] [Indexed: 01/07/2023] Open
Abstract
BACKGROUND A possible relationship between oral lichen planus (OLP) and thyroid disease has received attention in recent years. OBJECTIVE This study aimed to evaluate the correlation between OLP and thyroid diseases in Chinese ethnic patients. METHODS 192 OLP patients, 123 patients with oral lichenoid lesions (OLLs), and 162 controls were recruited in this case-control study. All participants received screening for thyroid function and underwent ultrasound. Sex and age of the patients in the three groups were matched. The prevalence of thyroid diseases in the subjects was analyzed. Using logistic regression, the odds ratio (OR) with 95% confidence intervals was appraised for associations between OLP, OLL, and different types of thyroid diseases [Hashimoto's thyroiditis (HT), hypothyroidism, and thyroid nodule]. RESULTS The prevalence of thyroid diseases in the OLP group (72.4%) and OLL group (68.3%) was higher than the control group (49.4%) with statistical significance. The OR of HT was 3.16 (1.87-5.33) for OLP, 2.09 (1.18-3.70) for OLL, while the OR of thyroid nodule was 2.31 (1.30-4.09) for OLP. CONCLUSION Our study suggested a close relationship between OLP/OLL and HT and thyroid nodule in a Chinese population. The possible mechanism behind this association warrants further investigation.
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Affiliation(s)
- Tingting Zhou
- Department of Oral Medicine, Peking University School and Hospital of Stomatology, Beijing, China
| | - Dan Li
- Department of Oral Medicine, Peking University School and Hospital of Stomatology, Beijing, China
| | - Qianming Chen
- Department of Oral Medicine, West China School of Stomatology, SiChuan University, Chengdu, China
| | - Hong Hua
- Department of Oral Medicine, Peking University School and Hospital of Stomatology, Beijing, China
| | - Chunlei Li
- Department of Oral Medicine, Peking University School and Hospital of Stomatology, Beijing, China
- *Correspondence: Chunlei Li,
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258
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Freedman SN, Shahi SK, Mangalam AK. The "Gut Feeling": Breaking Down the Role of Gut Microbiome in Multiple Sclerosis. Neurotherapeutics 2018; 15:109-125. [PMID: 29204955 PMCID: PMC5794701 DOI: 10.1007/s13311-017-0588-x] [Citation(s) in RCA: 99] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Multiple sclerosis (MS) is a chronic neuroinflammatory disease of the central nervous system with unknown etiology. Recently, the gut microbiota has emerged as a potential factor in the development of MS, with a number of studies having shown that patients with MS exhibit gut dysbiosis. The gut microbiota helps the host remain healthy by regulating various functions, including food metabolism, energy homeostasis, maintenance of the intestinal barrier, inhibition of colonization by pathogenic organisms, and shaping of both mucosal and systemic immune responses. Alteration of the gut microbiota, and subsequent changes in its metabolic network that perturb this homeostasis, may lead to intestinal and systemic disorders such as MS. Here we discuss the findings of recent MS microbiome studies and potential mechanisms through which gut microbiota can predispose to, or protect against, MS. These findings highlight the need of an improved understanding of the interactions between the microbiota and host for developing therapies based on gut commensals with which to treat MS.
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Affiliation(s)
- Samantha N Freedman
- Interdisciplinary Graduate Program in Immunology, University of Iowa, Iowa City, IA, USA
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Shailesh K Shahi
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, IA, USA
| | - Ashutosh K Mangalam
- Interdisciplinary Graduate Program in Immunology, University of Iowa, Iowa City, IA, USA.
- Department of Pathology, Carver College of Medicine, University of Iowa, Iowa City, IA, USA.
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259
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Eindhoven S, Levels J, Huisman M, de Winter KR, Dalm V, Alwani R. MPO-ANCA associated vasculitis with mononeuritis multiplex following influenza vaccination. Allergy Asthma Clin Immunol 2017; 13:49. [PMID: 29255476 PMCID: PMC5727957 DOI: 10.1186/s13223-017-0222-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Accepted: 11/06/2017] [Indexed: 11/14/2022] Open
Abstract
Background Although influenza vaccines are generally safe and effective, a variety of autoimmune phenomena have been reported after vaccination over the past years, such as Guillain–Barre syndrome, rheumatoid arthritis, pemphigus vulgaris, psoriasis, giant cell arteritis and anti-neutrophil cytoplasmic antibody (ANCA) associated vasculitis (AAV). Case report We describe the case of a 67-year old man who presented with a myeloperoxidase-ANCA associated vasculitis with renal involvement and mononeuritis multiplex after seasonal influenza vaccination. He was initially treated with intravenous cyclophosphamide and high-dose prednisolone followed by maintenance treatment consisting of azathioprine and prednisolone. Conclusion We hypothesize that seasonal influenza vaccination triggered a systemic immune response in a susceptible patient to develop AAV with renal involvement and vasculitic neuropathy. In general, seasonal influenza vaccinations are considered to be safe, however, clinicians should be aware of this rare phenomenon.
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Affiliation(s)
- Stefanie Eindhoven
- Department of Internal Medicine, IJsselland Hospital, Capelle aan den IJssel, The Netherlands.,Department of Internal Medicine, Room F104, IJsselland Hospital, P.O. Box 690, 2900 AR Capelle aan den IJssel, The Netherlands
| | - Jolien Levels
- Department of Internal Medicine, IJsselland Hospital, Capelle aan den IJssel, The Netherlands
| | - Margriet Huisman
- Division of Rheumatology, Department of Internal Medicine, IJsselland Hospital, Capelle aan den IJssel, The Netherlands
| | | | - Virgil Dalm
- Division of Clinical Immunology, Department of Internal Medicine, Erasmus Medical Centre, Rotterdam, The Netherlands.,Department of Immunology, Erasmus Medical Centre, Rotterdam, The Netherlands
| | - Rehmat Alwani
- Department of Internal Medicine, IJsselland Hospital, Capelle aan den IJssel, The Netherlands
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260
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McGowan JE, Kratch J, Chattopadhyay S, Joe B, Conti HR, Chakravarti R. Bioinformatic analysis reveals new determinants of antigenic 14-3-3 proteins and a novel antifungal strategy. PLoS One 2017; 12:e0189503. [PMID: 29232712 PMCID: PMC5726717 DOI: 10.1371/journal.pone.0189503] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/24/2017] [Accepted: 11/28/2017] [Indexed: 01/28/2023] Open
Abstract
The ubiquitously expressed 14-3-3 family of proteins is evolutionarily conserved from yeast to mammals. Their involvement in humoral and cellular immune responses is emerging through studies in drosophila and humans. In humans, a select group of 14-3-3 isoforms are antigenic; however the determinants of their antigenicity are not known. Here, we show that although mammalian 14-3-3 proteins are mostly conserved, subtle differences between their isoforms may give rise to their antigenicity. We observed syntenic relations among all the isoforms of 14-3-3 for mammals, but not with that of birds or amphibians. However, the parasitic 14-3-3 isoforms, which have known antigenic properties, show unique sequence, structure and evolution compared to the human 14-3-3. Moreover we report, for the first time the existence of a bacterial 14-3-3 protein. Contrary to the parasitic isoforms, both bacterial and yeast 14-3-3 exhibited significant homology with mammalian 14-3-3 in protein sequence as well as structure. Furthermore, a human 14-3-3 inhibitor caused significant killing of Candida albicans, which could be due to the inhibition of the structurally similar yeast homologue of 14-3-3, BMH, which is essential for its life cycle. Overall, our bioinformatic analysis combined with the demonstration of a novel antifungal role of a peptide inhibitor of human 14-3-3 indicates that the sequences and structural similarities between the mammalian, bacterial and fungal proteins are likely determinants of the antigenic nature of these proteins. Further, we propose that molecular mimicry triggered by microbial infections with either yeast or bacteria may contribute to the antigenic role of human 14-3-3.
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Affiliation(s)
- Jenna E. McGowan
- Department of Surgery, University of Toledo College of Medicine & Life Sciences, Toledo, OH, United States of America
| | - Jacqueline Kratch
- Department of Biological Sciences, University of Toledo, Toledo, OH, United States of America
| | - Saurabh Chattopadhyay
- Department of Medical Microbiology & Immunology, University of Toledo College of Medicine & Life Sciences, Toledo, OH, United States of America
| | - Bina Joe
- Department of Physiology & Pharmacology, University of Toledo College of Medicine & Life Sciences, Toledo, OH, United States of America
| | - Heather R. Conti
- Department of Biological Sciences, University of Toledo, Toledo, OH, United States of America
| | - Ritu Chakravarti
- Department of Surgery, University of Toledo College of Medicine & Life Sciences, Toledo, OH, United States of America
- * E-mail:
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261
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Abstract
PURPOSE OF REVIEW This review article aims to provide a contemporary insight into the pathophysiological mechanisms of and therapeutic targets for pericarditis, drawing distinction between autoinflammatory and autoimmune pericarditis. RECENT FINDINGS Recent research has focused on the distinction between autoinflammatory and autoimmune pericarditis. In autoinflammatory pericarditis, viruses can activate the sensor molecule of the inflammasome, which results in downstream release of cytokines, such as interleukin-1, that recruit neutrophils and macrophages to the site of injury. Conversely, in autoimmune pericarditis, a type I interferon signature predominates, and pericardial manifestations coincide with the severity of the underlying systemic autoimmune disease. In addition, autoimmune pericarditis can also develop after cardiac injury syndromes. With either type of pericarditis, imaging can help stage the inflammatory state. Prominent pericardial delayed hyperenhancement on magnetic resonance imaging suggests ongoing inflammation whereas calcium on computed tomography suggests a completed inflammatory cascade. In patients with ongoing pericarditis, treatments that converge on the inflammasome, such as colchicine and anakinra, have proved effective in recurrent autoinflammatory pericarditis, though further clinical trials with anakinra are warranted. An improved understanding of the pathophysiological mechanisms of pericarditis helps unravel effective therapeutic targets for this condition.
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Affiliation(s)
- Bo Xu
- Section of Cardiovascular Imaging, Heart and Vascular Institute, Cleveland Clinic, Desk J1-5, 9500 Euclid Avenue, Cleveland, OH, 44195, USA
| | - Serge C Harb
- Section of Cardiovascular Imaging, Heart and Vascular Institute, Cleveland Clinic, Desk J1-5, 9500 Euclid Avenue, Cleveland, OH, 44195, USA
| | - Paul C Cremer
- Section of Cardiovascular Imaging, Heart and Vascular Institute, Cleveland Clinic, Desk J1-5, 9500 Euclid Avenue, Cleveland, OH, 44195, USA.
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262
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Dyggve H, Jarva H, Spillmann T, Speeti M, Meri S. Identification of Glyceraldehyde-3-Phosphate and Alcohol Dehydrogenases as Autoantigens in Doberman Hepatitis. Scand J Immunol 2017; 86:156-164. [PMID: 29072876 DOI: 10.1111/sji.12575] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2017] [Accepted: 06/11/2017] [Indexed: 11/30/2022]
Abstract
An autoimmune background is suspected for Doberman hepatitis (DH). It is based on the finding of mononuclear cell infiltrates in the liver, strong female bias, association to the homozygous risk factor dog leucocyte antigen (DLA) allele DRB1*00601 and aberrant major histocompatibility complex (MHC) class II expression on hepatocytes that correlates with the degree of inflammation in the liver. The aim of this study was to search for autoantibodies against liver-related antigens associated with DH. Twenty-five Dobermans with subclinical DH (SDH), 13 that clinically manifest DH (CDH) and 17 healthy controls were studied. Immunoblotting analysis detected specific antibodies in the DH sera. By mass spectrometry the targets were identified as liver-related enzymes glyceraldehyde-3-phosphate dehydrogenase (GAPDH) and alcohol dehydrogenase (ADH). Using ELISA, anti-GAPDH IgG was detected in 36% (9/25) of SDH dogs and 69.2% (9/13) of the CDH dogs compared to healthy controls (0/17) (P < 0.0005). Anti-ADH IgG was detected in 72% (18/25) of SDH dogs and 76.9% (10/13) of CDH dogs and only in one (1/17) control (P < 0.0005). The finding of novel autoantigens, GAPDH and ADH strengthen the hypothesis that DH is an autoimmune disease of the liver. These findings suggest that DH could be diagnosed by screening for autoantibodies against the defined antigens.
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Affiliation(s)
- H Dyggve
- Department of Equine and Small Animal Medicine, University of Helsinki, Helsinki, Finland.,Department of Bacteriology and Immunology and Immunobiology Research Program, University of Helsinki and HUSLAB, Helsinki University Hospital, Helsinki, Finland
| | - H Jarva
- Department of Bacteriology and Immunology and Immunobiology Research Program, University of Helsinki and HUSLAB, Helsinki University Hospital, Helsinki, Finland
| | - T Spillmann
- Department of Equine and Small Animal Medicine, University of Helsinki, Helsinki, Finland
| | - M Speeti
- Department of Equine and Small Animal Medicine, University of Helsinki, Helsinki, Finland
| | - S Meri
- Department of Bacteriology and Immunology and Immunobiology Research Program, University of Helsinki and HUSLAB, Helsinki University Hospital, Helsinki, Finland
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263
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Christia P, Miles J, Katsa I, Maraboto C, Faillace R. Case of Tuberculous Pericarditis Mimicking Lupus Carditis. Am J Med 2017; 130:e475-e477. [PMID: 28756268 DOI: 10.1016/j.amjmed.2017.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/04/2017] [Revised: 07/01/2017] [Accepted: 07/03/2017] [Indexed: 10/19/2022]
Affiliation(s)
- Panagiota Christia
- Department of Medicine, Jacobi Medical Center, Albert Einstein College of Medicine, Bronx, NY
| | - Jeremy Miles
- Department of Medicine, Jacobi Medical Center, Albert Einstein College of Medicine, Bronx, NY
| | - Ioanna Katsa
- Department of Medicine, Jacobi Medical Center, Albert Einstein College of Medicine, Bronx, NY
| | - Carola Maraboto
- Department of Medicine, Jacobi Medical Center, Albert Einstein College of Medicine, Bronx, NY.
| | - Robert Faillace
- Department of Medicine, Jacobi Medical Center, Albert Einstein College of Medicine, Bronx, NY
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264
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Baseer S, Ahmad S, Ranaghan KE, Azam SS. Towards a peptide-based vaccine against Shigella sonnei : A subtractive reverse vaccinology based approach. Biologicals 2017; 50:87-99. [DOI: 10.1016/j.biologicals.2017.08.004] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2017] [Revised: 07/11/2017] [Accepted: 08/08/2017] [Indexed: 02/06/2023] Open
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265
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Hernández-Ríos P, Pussinen PJ, Vernal R, Hernández M. Oxidative Stress in the Local and Systemic Events of Apical Periodontitis. Front Physiol 2017; 8:869. [PMID: 29163211 PMCID: PMC5672116 DOI: 10.3389/fphys.2017.00869] [Citation(s) in RCA: 50] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Accepted: 10/17/2017] [Indexed: 12/13/2022] Open
Abstract
Oxidative stress is involved in the pathogenesis of a variety of inflammatory disorders. Apical periodontitis (AP) usually results in the formation of an osteolytic apical lesion (AL) caused by the immune response to endodontic infection. Reactive oxygen species (ROS) produced by phagocytic cells in response to bacterial challenge represent an important host defense mechanism, but disturbed redox balance results in tissue injury. This mini review focuses on the role of oxidative stress in the local and associated systemic events in chronic apical periodontitis. During endodontic infection, ligation of Toll-like receptors (TLRs) on phagocytes' surface triggers activation, phagocytosis, synthesis of ROS, activation of humoral and cellular responses, and production of inflammatory mediators, such as, cytokines and matrix metalloproteinases (MMPs). The increment in ROS perturbs the normal redox balance and shifts cells into a state of oxidative stress. ROS induce molecular damage and disturbed redox signaling, that result in the loss of bone homeostasis, increased pro-inflammatory mediators, and MMP overexpression and activation, leading to apical tissue breakdown. On the other hand, oxidative stress has been strongly involved in the pathogenesis of atherosclerosis, where a chronic inflammatory process develops in the arterial wall. Chronic AP is associated with an increased risk of cardiovascular diseases (CVD) and especially atherogenesis. The potential mechanisms linking these diseases are also discussed.
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Affiliation(s)
- Patricia Hernández-Ríos
- Department of Conservative Dentistry, School of Dentistry, Universidad de Chile, Santiago, Chile
| | - Pirkko J Pussinen
- Oral and Maxillofacial Diseases, Helsinki University Hospital, University of Helsinki, Helsinki, Finland
| | - Rolando Vernal
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Santiago, Chile.,Dentistry Unit, Faculty of Health Sciences, Universidad Autónoma de Chile, Santiago, Chile
| | - Marcela Hernández
- Laboratory of Periodontal Biology, Faculty of Dentistry, Universidad de Chile, Santiago, Chile.,Dentistry Unit, Faculty of Health Sciences, Universidad Autónoma de Chile, Santiago, Chile
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266
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Garg A, Kumari B, Kumar R, Kumar M. miPepBase: A Database of Experimentally Verified Peptides Involved in Molecular Mimicry. Front Microbiol 2017; 8:2053. [PMID: 29109711 PMCID: PMC5660332 DOI: 10.3389/fmicb.2017.02053] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 10/06/2017] [Indexed: 11/13/2022] Open
Abstract
Autoimmune diseases emerge due to several reasons, of which molecular mimicry i.e., similarity between the host's and pathogen's interacting peptides is an important reason. In the present study we have reported a database of only experimentally verified peptide sequences, which exhibit molecular mimicry. The database is named as miPepBase (Mimicry Peptide Database) and contains comprehensive information about mimicry proteins and peptides of both host (and model organism) and pathogen. It also provides information about physicochemical properties of protein and mimicry peptides, which might be helpful in predicting the nature of protein and optimization of protein expression. The miPepBase can be searched using a keyword or, by autoimmune disease(s) or by a combination of host and pathogen taxonomic group or their name. To facilitate the search of proteins and/or epitope in miPepBase, which is similar to the user's interest, BLAST search tool is also incorporated. miPepBase is an open access database and available at http://proteininformatics.org/mkumar/mipepbase.
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Affiliation(s)
- Anjali Garg
- Department of Biophysics, University of Delhi, New Delhi, India
| | - Bandana Kumari
- Department of Biophysics, University of Delhi, New Delhi, India
| | - Ravindra Kumar
- Department of Biophysics, University of Delhi, New Delhi, India
| | - Manish Kumar
- Department of Biophysics, University of Delhi, New Delhi, India
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267
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Abstract
PURPOSE OF REVIEW Tubulointerstitial nephritis and uveitis (TINU) is an important yet underrecognized ocular inflammatory syndrome. This review summarizes key historical publications that identified and defined the syndrome, and more recent literature that reveal the importance of urinary β2-microglobulin testing and kidney biopsy in the diagnostic evaluation of patients with TINU. Additionally, research studies providing new insights into disease pathogenesis are highlighted. RECENT FINDINGS In contrast with initial reports of TINU manifesting exclusively as an anterior uveitis in pediatric patients, more recent reports have identified TINU in patients of all ages with a wide range of ocular manifestations. Urinary β2-microglobulin has emerged as a sensitive and specific laboratory screening test, and the role of kidney biopsy in differentiating TINU from sarcoidosis continues to evolve. Genetic studies have identified HLA-DQA101, HLA-DQB105, and HLA-DRB101 as high-risk alleles and the identification of antimonomeric C-reactive protein antibodies suggests a role for humoral immunity in disease pathogenesis. Management strategies have evolved to include systemic anti-inflammatory treatment as a result of important outcome studies in patients with significant renal and ocular disease. SUMMARY With greater recognition, understanding, and treatment of this syndrome, both ocular inflammation and renal disease can be better addressed.
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Affiliation(s)
- Kaivon Pakzad-Vaezi
- Department of Ophthalmology, University of Washington, Seattle, Washington, USA
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268
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Pahari S, Chatterjee D, Negi S, Kaur J, Singh B, Agrewala JN. Morbid Sequences Suggest Molecular Mimicry between Microbial Peptides and Self-Antigens: A Possibility of Inciting Autoimmunity. Front Microbiol 2017; 8:1938. [PMID: 29062305 PMCID: PMC5640720 DOI: 10.3389/fmicb.2017.01938] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2017] [Accepted: 09/21/2017] [Indexed: 12/11/2022] Open
Abstract
Understanding etiology of autoimmune diseases has been a great challenge for designing drugs and vaccines. The pathophysiology of many autoimmune diseases may be attributed to molecular mimicry provoked by microbes. Molecular mimicry hypothesizes that a sequence homology between foreign and self-peptides leads to cross-activation of autoreactive T cells. Different microbial proteins are implicated in various autoimmune diseases, including multiple sclerosis, human type 1 diabetes, primary biliary cirrhosis and rheumatoid arthritis. It may be imperative to identify the microbial epitopes that initiate the activation of autoreactive T cells. Consequently, in the present study, we employed immunoinformatics tools to delineate homologous antigenic regions between microbes and human proteins at not only the sequence level but at the structural level too. Interestingly, many cross-reactive MHC class II binding epitopes were detected from an array of microbes. Further, these peptides possess a potential to skew immune response toward Th1-like patterns. The present study divulges many microbial target proteins, their putative MHC-binding epitopes, and predicted structures to establish the fact that both sequence and structure are two important aspects for understanding the relationship between molecular mimicry and autoimmune diseases. Such findings may enable us in designing potential immunotherapies to tolerize autoreactive T cells.
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Affiliation(s)
- Susanta Pahari
- Immunology Laboratory, CSIR-Institute of Microbial Technology, Chandigarh, India.,Department of Biotechnology, Panjab University, Chandigarh, India
| | - Deepyan Chatterjee
- Immunology Laboratory, CSIR-Institute of Microbial Technology, Chandigarh, India
| | - Shikha Negi
- Immunology Laboratory, CSIR-Institute of Microbial Technology, Chandigarh, India
| | - Jagdeep Kaur
- Department of Biotechnology, Panjab University, Chandigarh, India
| | - Balvinder Singh
- Immunology Laboratory, CSIR-Institute of Microbial Technology, Chandigarh, India
| | - Javed N Agrewala
- Immunology Laboratory, CSIR-Institute of Microbial Technology, Chandigarh, India
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269
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Clinical association: Lyme disease and Guillain-Barre syndrome. Am J Emerg Med 2017; 35:1583.e1-1583.e2. [DOI: 10.1016/j.ajem.2017.07.030] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2017] [Accepted: 07/06/2017] [Indexed: 11/22/2022] Open
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270
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Tavakolpour S. Towards personalized medicine for patients with autoimmune diseases: Opportunities and challenges. Immunol Lett 2017; 190:130-138. [DOI: 10.1016/j.imlet.2017.08.002] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Accepted: 08/03/2017] [Indexed: 02/06/2023]
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271
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Chromatography of Quorum Sensing Peptides: An Important Functional Class of the Bacterial Peptidome. Chromatographia 2017. [DOI: 10.1007/s10337-017-3411-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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272
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Svensson J, Holmqvist M, Lundberg IE, Arkema EV. Infections and respiratory tract disease as risk factors for idiopathic inflammatory myopathies: a population-based case -control study. Ann Rheum Dis 2017; 76:1803-1808. [PMID: 28855175 DOI: 10.1136/annrheumdis-2017-211174] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2017] [Indexed: 11/04/2022]
Abstract
OBJECTIVES To investigate the association between infection or respiratory tract disease and future risk of developing idiopathic inflammatory myopathy (IIM). METHODS A case-control study was performed using Swedish nationwide registers. Adults with newly diagnosed IIM were identified (2002-2011) from the National Patient Register (NPR) and the Swedish Rheumatology Register (n=957). Controls were matched by age, sex and place of residence (n=9476). Outpatient visits and hospitalisations preceding IIM diagnosis indicating infection or respiratory disease were identified from NPR. Conditional logistic regression models were used to calculate OR and 95% CI. Sensitivity analyses were performed by varying the exposure definition, adjusting for previous healthcare consumption and excluding individuals with connective tissue disease, IIM lung phenotype or IIM-associated cancer. RESULTS Preceding infections were more common in IIM cases compared with controls (13% vs 9%) and were associated with an increased risk of IIM (OR 1.5, 95% CI 1.2 to 1.9). Gastrointestinal and respiratory tract infections were associated with an increased risk of IIM while cutaneous infections were not.Preceding respiratory tract disease was present in 10% of IIM cases and 4% of controls (OR 2.3, 95% CI 1.8 to 3.0). Both upper and lower respiratory tract diseases were associated with an increased risk of IIM.Variations in exposure and outcome definitions did not greatly affect the results. CONCLUSIONS Infections and respiratory tract diseases are associated with an increased risk of IIM which suggests that the triggering of the immune system may take place outside the skeletal muscle.
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Affiliation(s)
- John Svensson
- Rheumatology unit, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden.,Clinical Epidemiology Unit, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
| | - Marie Holmqvist
- Clinical Epidemiology Unit, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden.,Rheumatology unit, Karolinska University Hospital, Stockholm, Sweden
| | - Ingrid E Lundberg
- Rheumatology unit, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden.,Rheumatology unit, Karolinska University Hospital, Stockholm, Sweden
| | - Elizabeth V Arkema
- Clinical Epidemiology Unit, Department of Medicine Solna, Karolinska Institutet, Stockholm, Sweden
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273
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Brooks PT, Brakel KA, Bell JA, Bejcek CE, Gilpin T, Brudvig JM, Mansfield LS. Transplanted human fecal microbiota enhanced Guillain Barré syndrome autoantibody responses after Campylobacter jejuni infection in C57BL/6 mice. MICROBIOME 2017; 5:92. [PMID: 28789710 PMCID: PMC5547673 DOI: 10.1186/s40168-017-0284-4] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2017] [Accepted: 06/05/2017] [Indexed: 05/10/2023]
Abstract
BACKGROUND Campylobacter jejuni is the leading antecedent infection to the autoimmune neuropathy Guillain-Barré syndrome (GBS), which is accompanied by an autoimmune anti-ganglioside antibody attack on peripheral nerves. Previously, we showed that contrasting immune responses mediate C. jejuni induced colitis and autoimmunity in interleukin-10 (IL-10)-deficient mice, dependent upon the infecting strain. Strains from colitis patients elicited T helper 1 (TH1)-dependent inflammatory responses while strains from GBS patients elicited TH2-dependent autoantibody production. Both syndromes were exacerbated by antibiotic depletion of the microbiota, but other factors controlling susceptibility to GBS are unknown. METHODS Using 16S rRNA gene high-throughput sequencing, we examined whether structure of the gut microbial community alters host (1) gastrointestinal inflammation or (2) anti-ganglioside antibody responses after infection with C. jejuni strains from colitis or GBS patients. We compared these responses in C57BL/6 mice with either (1) stable human gut microbiota (Humicrobiota) transplants or (2) conventional mouse microbiota (Convmicrobiota). RESULTS Inoculating germ-free C57BL/6 wild-type (WT) mice with a mixed human fecal slurry provided a murine model that stably passed its microbiota over >20 generations. Mice were housed in specific pathogen-free (SPF) facilities, while extra precautions of having caretakers wear sterile garb along with limited access ensured that no mouse pathogens were acquired. Humicrobiota conferred many changes upon the WT model in contrast to previous results, which showed only colonization with no disease after C. jejuni challenge. When compared to Convmicrobiota mice for susceptibility to C. jejuni enteric or GBS patient strains, infected Humicrobiota mice had (1) 10-100 fold increases in C. jejuni colonization of both strains, (2) pathologic change in draining lymph nodes but only mild changes in colon or cecal lamina propria, (3) significantly lower Th1/Th17-dependent anti-C. jejuni responses, (4) significantly higher IL-4 responses at 5 but not 7 weeks post infection (PI), (5) significantly higher Th2-dependent anti-C. jejuni responses, and (6) significantly elevated anti-ganglioside autoantibodies after C. jejuni infection. These responses in Humicrobiota mice were correlated with a dominant Bacteroidetes and Firmicutes microbiota. CONCLUSIONS These data demonstrate that Humicrobiota altered host-pathogen interactions in infected mice, increasing colonization and Th-2 and autoimmune responses in a C. jejuni strain-dependent manner. Thus, microbiota composition is another factor controlling susceptibility to GBS.
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Affiliation(s)
- Phillip T Brooks
- Comparative Enteric Diseases Laboratory, Michigan State University, East Lansing, MI, USA
- Comparative Medicine and Integrative Biology, Michigan State University, East Lansing, MI, USA
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, USA
| | - Kelsey A Brakel
- College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - Julia A Bell
- Comparative Enteric Diseases Laboratory, Michigan State University, East Lansing, MI, USA
- College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - Christopher E Bejcek
- Comparative Enteric Diseases Laboratory, Michigan State University, East Lansing, MI, USA
| | - Trey Gilpin
- Comparative Enteric Diseases Laboratory, Michigan State University, East Lansing, MI, USA
| | - Jean M Brudvig
- Comparative Enteric Diseases Laboratory, Michigan State University, East Lansing, MI, USA
- Comparative Medicine and Integrative Biology, Michigan State University, East Lansing, MI, USA
- College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA
| | - Linda S Mansfield
- Comparative Enteric Diseases Laboratory, Michigan State University, East Lansing, MI, USA.
- Comparative Medicine and Integrative Biology, Michigan State University, East Lansing, MI, USA.
- Institute for Integrative Toxicology, Michigan State University, East Lansing, MI, USA.
- College of Veterinary Medicine, Michigan State University, East Lansing, MI, USA.
- Department of Microbiology and Molecular Genetics, Michigan State University, 181 Food Safety Building; 1129 Farm Lane, East Lansing, MI, 48824, USA.
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274
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Microbiological and immunological profile of patients with severe lupus flares related to bloodstream infections: a retrospective cohort study. Lupus 2017; 27:312-318. [DOI: 10.1177/0961203317720527] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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275
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Complicated Pericarditis: Understanding Risk Factors and Pathophysiology to Inform Imaging and Treatment. J Am Coll Cardiol 2017; 68:2311-2328. [PMID: 27884251 DOI: 10.1016/j.jacc.2016.07.785] [Citation(s) in RCA: 130] [Impact Index Per Article: 18.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Revised: 07/05/2016] [Accepted: 07/12/2016] [Indexed: 01/09/2023]
Abstract
Most patients with acute pericarditis have a benign course and a good prognosis. However, a minority of patients develop complicated pericarditis, and the care of these patients is the focus of this review. Specifically, we address risk factors, multimodality imaging, pathophysiology, and novel treatments. The authors conclude that: 1) early high-dose corticosteroids, a lack of colchicine, and an elevated high-sensitivity C-reactive protein are associated with the development of complicated pericarditis; 2) in select cases, cardiovascular magnetic resonance imaging may aid in the assessment of pericardial inflammation and constriction; 3) given phenotypic similarities between recurrent idiopathic pericarditis and periodic fever syndromes, disorders of the inflammasome may contribute to relapsing attacks; and 4) therapies that target the inflammasome may lead to more durable remission and resolution. Finally, regarding future investigations, the authors discuss the potential of cardiovascular magnetic resonance to inform treatment duration and the need to compare steroid-sparing treatments to pericardiectomy.
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276
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Watad A, Azrielant S, Bragazzi NL, Sharif K, David P, Katz I, Aljadeff G, Quaresma M, Tanay G, Adawi M, Amital H, Shoenfeld Y. Seasonality and autoimmune diseases: The contribution of the four seasons to the mosaic of autoimmunity. J Autoimmun 2017. [PMID: 28624334 DOI: 10.1016/j.jaut.2017.06.001] [Citation(s) in RCA: 103] [Impact Index Per Article: 14.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Autoimmune diseases (ADs) are a heterogeneous groups of diseases that occur as a results of loss of tolerance to self antigens. While the etiopathogeneis remain obscure, different environmental factors were suggested to have a role in the development of autoimmunity, including infections, low vitamin D levels, UV radiation, and melatonin. Interestingly, such factors possess seasonal variation patterns that could influence disease development, severity and progression. Vitamin D levels which reach a nadir during late winter and early spring is correlated with increased disease activity, clinical severity as well as relapse rates in several disease entities including multiple sclerosis (MS), non-cutaneous flares of systemic lupus erythematosus (SLE), psoriasis, and rheumatoid arthritis (RA). Additionally, immunomodulatory actions of melatonin secretion ameliorate the severity of several ADs including MS and SLE. Melatonin levels are lowest during spring, a finding that correlates with the highest exacerbation rates of MS. Further, melatonin is postulated to be involved in the etiopathogenesis of inflammatory bowel diseases (IBD) through it influence on adhesion molecule and therefore transcription factor expression. Moreover, infections can mount to ADs through pro-inflammatory cytokine release and human antigen mimicry. Seasonal patterns of infectious diseases are correlated with the onset and exacerbation of ADs. During the winter, increased incidence of Epstein-Barr virus (EBV) infectious are associated with MS and SLE flares/onset respectively. In addition, higher Rotavirus infections during the winter precedes type 1 diabetes mellitus onset (T1DM). Moreover, Escherichia coli (E. coli) infection prior to primary biliary cirrhosis (PBC) and T1DM disease onset subsequent to Coxachievirus infections are seen to occur during late summer, a finding that correlate with infectious agents' pattern of seasonality. In this review, the effects of seasonality on the onset, relapses and activity of various ADs were discussed. Consideration of seasonal variation patterns of ADs can possibly provide clues to diseases pathogenesis and lead to development of new approaches in treatment and preventative care.
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Affiliation(s)
- Abdulla Watad
- Department of Medicine 'B', Sheba Medical Center, Tel-Hashomer, Israel; Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Israel; Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Shir Azrielant
- Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Israel; Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Nicola Luigi Bragazzi
- Postgraduate School of Public Health, Department of Health Sciences (DISSAL), University of Genoa, Genoa, Italy
| | - Kassem Sharif
- Department of Medicine 'B', Sheba Medical Center, Tel-Hashomer, Israel; Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Paula David
- Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Israel
| | - Itay Katz
- Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Israel
| | - Gali Aljadeff
- Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Israel
| | - Mariana Quaresma
- Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Israel
| | - Galya Tanay
- Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Israel
| | - Mohammad Adawi
- Baruch Padeh and Ziv hospitals, Bar-Ilan, Faculty of Medicine, Zefat, Israel
| | - Howard Amital
- Department of Medicine 'B', Sheba Medical Center, Tel-Hashomer, Israel; Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Israel; Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel
| | - Yehuda Shoenfeld
- Zabludowicz Center for Autoimmune Diseases, Sheba Medical Center, Tel-Hashomer, Israel; Sackler Faculty of Medicine, Tel-Aviv University, Tel-Aviv, Israel; Incumbent of the Laura Schwarz-Kipp Chair for Research of Autoimmune Diseases, Tel-Aviv University, Israel.
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277
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Pilli D, Zou A, Tea F, Dale RC, Brilot F. Expanding Role of T Cells in Human Autoimmune Diseases of the Central Nervous System. Front Immunol 2017. [PMID: 28638382 PMCID: PMC5461350 DOI: 10.3389/fimmu.2017.00652] [Citation(s) in RCA: 54] [Impact Index Per Article: 7.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
It is being increasingly recognized that a dysregulation of the immune system plays a vital role in neurological disorders and shapes the treatment of the disease. Aberrant T cell responses, in particular, are key in driving autoimmunity and have been traditionally associated with multiple sclerosis. Yet, it is evident that there are other neurological diseases in which autoreactive T cells have an active role in pathogenesis. In this review, we report on the recent progress in profiling and assessing the functionality of autoreactive T cells in central nervous system (CNS) autoimmune disorders that are currently postulated to be primarily T cell driven. We also explore the autoreactive T cell response in a recently emerging group of syndromes characterized by autoantibodies against neuronal cell-surface proteins. Common methodology implemented in T cell biology is further considered as it is an important determinant in their detection and characterization. An improved understanding of the contribution of autoreactive T cells expands our knowledge of the autoimmune response in CNS disorders and can offer novel methods of therapeutic intervention.
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Affiliation(s)
- Deepti Pilli
- Brain Autoimmunity Group, Institute for Neuroscience and Muscle Research, The Kids Research Institute at The Children's Hospital at Westmead, University of Sydney, Sydney, NSW, Australia
| | - Alicia Zou
- Brain Autoimmunity Group, Institute for Neuroscience and Muscle Research, The Kids Research Institute at The Children's Hospital at Westmead, University of Sydney, Sydney, NSW, Australia
| | - Fiona Tea
- Brain Autoimmunity Group, Institute for Neuroscience and Muscle Research, The Kids Research Institute at The Children's Hospital at Westmead, University of Sydney, Sydney, NSW, Australia
| | - Russell C Dale
- Brain Autoimmunity Group, Institute for Neuroscience and Muscle Research, The Kids Research Institute at The Children's Hospital at Westmead, University of Sydney, Sydney, NSW, Australia.,Brain and Mind Centre, University of Sydney, Sydney, NSW, Australia
| | - Fabienne Brilot
- Brain Autoimmunity Group, Institute for Neuroscience and Muscle Research, The Kids Research Institute at The Children's Hospital at Westmead, University of Sydney, Sydney, NSW, Australia.,Brain and Mind Centre, University of Sydney, Sydney, NSW, Australia
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278
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Sykam A, Gutlapalli VR, Tenali SP, Meena AK, Chandran P, Suneetha S, Suneetha LM. Anticeramide antibody and butyrylcholinesterase in peripheral neuropathies. J Clin Neurosci 2017; 42:204-208. [PMID: 28576432 DOI: 10.1016/j.jocn.2017.04.023] [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: 09/02/2016] [Accepted: 04/22/2017] [Indexed: 10/19/2022]
Abstract
Ceramide is a glycosphingolipid, a component of nerve and non neuronal cell membrane and plays a role in maintaining the integrity of neuronal tissue. Butyrylcholinesterase (BChE) is a multifunctional enzyme, its involvement in neurodegenerative diseases has been well established. Anticeramide antibody (Ab-Cer) and enzyme BChE have been implicated in peripheral neuropathies. The present study investigates whether there is an association between Ab-Cer and BChE activities and peripheral neuropathies. Patients included: human immunodeficiency virus associated peripheral neuropathy (HIV-PN, n=39), paucibacillary leprosy (PB-L, n=36), multibacillary leprosy (MB-L, n=52), diabetic neuropathy (DN, n=22), demyelinating sensory motor polyneuropathy (DSMN, n=13) and chronic inflammatory demyelinating polyneuropathy (CIDP, n=10). Plasma Ab-Cer was measured by indirect enzyme linked immune assay (ELISA) and BChE activity in plasma was measured by colorimetric method. Ab-Cer levels were significantly elevated in MB-L and DN as compared to healthy subjects (HS). BChE levels were significantly higher in MB-L and DN as well as in HIV and HIV-PN. There is no significant difference in either Ab-Cer or BChE levels in DSMN and CIDP. Elevated plasma Ab-Cer and BChE levels may be considered significant in the pathogenesis of neuropathies. The variation in concurrent involvement of both the molecules in the neuropathies of the study, suggest their unique involvement in neurodegenerative pathways.
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Affiliation(s)
- Aparna Sykam
- Nireekshana-ACET/CODEWEL, Hyderabad, Telangana 500029, India; Centre for Biotechnology, Acharya Nagarjuna University, Nagarjuna Nagar, Guntur, Andhra Pradesh 522510, India
| | - V R Gutlapalli
- Nireekshana-ACET/CODEWEL, Hyderabad, Telangana 500029, India; Centre for Biotechnology, Acharya Nagarjuna University, Nagarjuna Nagar, Guntur, Andhra Pradesh 522510, India
| | | | - A K Meena
- Nizam's Institute of Medical Sciences, Punjagutta, Hyderabad, Telangana 500082, India
| | - Priscilla Chandran
- Nizam's Institute of Medical Sciences, Punjagutta, Hyderabad, Telangana 500082, India
| | - Sujai Suneetha
- Nireekshana-ACET/CODEWEL, Hyderabad, Telangana 500029, India
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279
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Seth A, Park HS, Hong KS. Current Perspective on In Vivo Molecular Imaging of Immune Cells. Molecules 2017; 22:molecules22060881. [PMID: 28587110 PMCID: PMC6152742 DOI: 10.3390/molecules22060881] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2017] [Accepted: 05/19/2017] [Indexed: 12/31/2022] Open
Abstract
Contemporaneous development of improved immune cell-based therapies, and powerful imaging tools, has prompted growth in technologies for immune cell tracking in vivo. Over the past couple of decades, imaging tools such as magnetic resonance imaging (MRI) and optical imaging have successfully monitored the trafficking patterns of therapeutic immune cells and assisted the evaluation of the success or failure of immunotherapy. Recent advancements in imaging technology have made imaging an indispensable module of immune cell-based therapies. In this review, emerging applications of non-radiation imaging modalities for the tracking of a range of immune cells are discussed. Applications of MRI, NIR, and other imaging tools have demonstrated the potential of non-invasively surveying the fate of both phagocytic and non-phagocytic immune cells in vivo.
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Affiliation(s)
- Anushree Seth
- Bioimaging Research Team, Korea Basic Science Institute, Cheongju 28119, Korea.
- Immunotherapy Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea.
| | - Hye Sun Park
- Bioimaging Research Team, Korea Basic Science Institute, Cheongju 28119, Korea.
- Immunotherapy Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea.
| | - Kwan Soo Hong
- Bioimaging Research Team, Korea Basic Science Institute, Cheongju 28119, Korea.
- Immunotherapy Convergence Research Center, Korea Research Institute of Bioscience and Biotechnology, Daejeon 34141, Korea.
- Graduate School of Analytical Science and Technology, Chungnam National University, Daejeon 34134, Korea.
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280
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Abstract
Autoantibody testing is performed to help diagnose patients who have clinical symptoms suggestive of possible autoimmune diseases. Antinuclear antibodies (ANA) are present in many systemic autoimmune conditions such as systemic lupus erythematosus (SLE). However, a positive ANA test may also be seen with non-autoimmune inflammatory diseases, including both acute and chronic infections. When the ANA test is used as an initial screen in patients with non-specific clinical symptoms, such as fever, joint pain, myalgias, fatigue, rash, or anemia, the likelihood of a positive result due to infection will increase, especially in children. This article identifies acute and chronic infectious diseases that are likely to produce a positive ANA result and summarizes recent literature addressing both the causes and consequences of these findings.
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Affiliation(s)
- Christine M Litwin
- a Pathology and Laboratory Medicine, Medical University of South Carolina , Charleston , South Carolina , USA
| | - Steven R Binder
- b Clinical Diagnostics Group, Bio-Rad Laboratories , Hercules , California , USA
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281
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Marinaki S, Skalioti C, Boletis J. Glomerular Diseases and Renal Transplantation: Pathogenic Pathways and Evolution of Therapeutic Interventions. Transplant Proc 2017; 49:243-252. [PMID: 28219579 DOI: 10.1016/j.transproceed.2016.11.035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2016] [Accepted: 11/16/2016] [Indexed: 11/19/2022]
Abstract
Glomerular diseases and renal transplantation are the main fields of nephrology in which the immune system plays a prevalent role. Glomerular diseases have traditionally been attributed to auto-immune conditions, whereas allograft rejection has been considered an allo-immune response. However, common immunopathologic mechanisms that include Toll-like receptors, complement and B-cell activation, as well as genetic and infectious factors appear to be involved in the pathogenesis of both entities. Novel therapeutic regimens directed against specific targets of the immune system show promising results in glomerulopathies as well as in renal transplantation.
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Affiliation(s)
- S Marinaki
- Nephrology Department and Renal Transplantation Unit, Laiko Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - C Skalioti
- Nephrology Department and Renal Transplantation Unit, Laiko Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece
| | - J Boletis
- Nephrology Department and Renal Transplantation Unit, Laiko Hospital, Medical School, National and Kapodistrian University of Athens, Athens, Greece.
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282
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Li JN, Jia X, Wang Y, Xie C, Jiang T, Cui Z, Zhao MH. Plasma from patients with anti-glomerular basement membrane disease could recognize microbial peptides. PLoS One 2017; 12:e0174553. [PMID: 28410377 PMCID: PMC5391914 DOI: 10.1371/journal.pone.0174553] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2016] [Accepted: 03/10/2017] [Indexed: 12/04/2022] Open
Abstract
Infection has long been suspected as a trigger of autoimmune diseases, and molecular mimicry mechanism was hypothesized in this study. Microbe originated peptides were searched from the Uniprot database based on a previous defined critical amino acid motif within α3129−150, isoleucine137, tryptophan140, glycine142, phenylalanine 143 and phenylalanine 145. 23826 microbial peptides were identified using our searching strategy, among which seven were related with human infections. Circulating IgG and IgM antibodies against the seven microbial peptides were detected using ELISA in 76 patients with anti-GBM disease. Four peptides were recognized by both IgG and IgM antibodies, and one peptide was recognized by IgG antibodies only. Peptides from Bacteroides, Saccharomyces cerevisiae, and Bifidobacterium thermophilum possessed the highest recognition frequency with the prevalence of 73.7%, 61.8% and 67.1% for IgG, 56.6%, 44.7% and 67.1% for IgM in anti-GBM patients. Patients with antibodies against these microbial peptides showed more severe kidney injury, including higher serum creatinine and higher percentage of crescent formation. In conclusion, antibodies against microbial peptides were identified in the circulation of anti-GBM patients, implying its etiological role in eliciting autoimmune response against α3(IV)NC1 through molecular mimicry.
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Affiliation(s)
- Jian-nan Li
- Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China
- Institute of Nephrology, Peking University, Beijing, China
- Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China
- Key Laboratory of CKD Prevention and Treatment, Ministry of Education of China, Beijing, China
| | - Xiaoyu Jia
- Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China
- Institute of Nephrology, Peking University, Beijing, China
- Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China
- Key Laboratory of CKD Prevention and Treatment, Ministry of Education of China, Beijing, China
| | - Yongqiang Wang
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
| | - Can Xie
- State Key Laboratory of Membrane Biology, Laboratory of Molecular Biophysics, School of Life Sciences, Peking University, Beijing, China
| | - Taijiao Jiang
- Key Laboratory of Protein and Peptide Pharmaceuticals, Institute of Biophysics, Chinese Academy of Sciences, Beijing, China
- Center for Systems Medicine, Institute of Basic Medical Sciences, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- Suzhou Institute of Systems Medicine, Suzhou, Jiangsu, China
| | - Zhao Cui
- Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China
- Institute of Nephrology, Peking University, Beijing, China
- Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China
- Key Laboratory of CKD Prevention and Treatment, Ministry of Education of China, Beijing, China
- * E-mail:
| | - Ming-hui Zhao
- Renal Division, Department of Medicine, Peking University First Hospital, Beijing, China
- Institute of Nephrology, Peking University, Beijing, China
- Key Laboratory of Renal Disease, Ministry of Health of China, Beijing, China
- Key Laboratory of CKD Prevention and Treatment, Ministry of Education of China, Beijing, China
- Peking-Tsinghua Center for Life Sciences, Beijing, China
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283
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Stephanie S. Autoimmune Disease: Budget-buster or Enlightened Solutions? (The coming epidemic and the new administration in Washington). ACTA ACUST UNITED AC 2017. [DOI: 10.17352/2455-5479.000022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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284
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Zandian A, Forsström B, Häggmark-Månberg A, Schwenk JM, Uhlén M, Nilsson P, Ayoglu B. Whole-Proteome Peptide Microarrays for Profiling Autoantibody Repertoires within Multiple Sclerosis and Narcolepsy. J Proteome Res 2017; 16:1300-1314. [DOI: 10.1021/acs.jproteome.6b00916] [Citation(s) in RCA: 47] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Arash Zandian
- Affinity Proteomics, SciLifeLab,
School of Biotechnology, KTH - Royal Institute of Technology, SE-171 21 Solna, Sweden
| | - Björn Forsström
- Affinity Proteomics, SciLifeLab,
School of Biotechnology, KTH - Royal Institute of Technology, SE-171 21 Solna, Sweden
| | - Anna Häggmark-Månberg
- Affinity Proteomics, SciLifeLab,
School of Biotechnology, KTH - Royal Institute of Technology, SE-171 21 Solna, Sweden
| | - Jochen M. Schwenk
- Affinity Proteomics, SciLifeLab,
School of Biotechnology, KTH - Royal Institute of Technology, SE-171 21 Solna, Sweden
| | - Mathias Uhlén
- Affinity Proteomics, SciLifeLab,
School of Biotechnology, KTH - Royal Institute of Technology, SE-171 21 Solna, Sweden
| | - Peter Nilsson
- Affinity Proteomics, SciLifeLab,
School of Biotechnology, KTH - Royal Institute of Technology, SE-171 21 Solna, Sweden
| | - Burcu Ayoglu
- Affinity Proteomics, SciLifeLab,
School of Biotechnology, KTH - Royal Institute of Technology, SE-171 21 Solna, Sweden
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285
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Abstract
The three common themes that underlie the induction and perpetuation of autoimmunity are genetic predisposition, environmental factors, and immune regulation. Environmental factors have gained much attention for their role in triggering autoimmunity, with increasing evidence of their influence as demonstrated by epidemiological studies, laboratory research, and animal studies. Environmental factors known to trigger and perpetuate autoimmunity include infections, gut microbiota, as well as physical and environmental agents. To address these issues, we will review major potential mechanisms that underlie autoimmunity including molecular mimicry, epitope spreading, bystander activation, polyclonal activation of B and T cells, infections, and autoinflammatory activation of innate immunity. The association of the gut microbiota on autoimmunity will be particularly highlighted by their interaction with pharmaceutical agents that may lead to organ-specific autoimmunity. Nonetheless, and we will emphasize this point, the precise mechanism of environmental influence on disease pathogenesis remains elusive.
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Affiliation(s)
- Annarosa Floreani
- Department of Surgery, Oncology and Gastroenterology, University of Padova, Via Giustiniani, 2, 35128, Padova, Italy.
| | - Patrick S C Leung
- Department of Surgery, Oncology and Gastroenterology, University of Padova, Via Giustiniani, 2, 35128, Padova, Italy
| | - M Eric Gershwin
- Division of Rheumatology, Allergy, and Clinical Immunology, University of California Davis, Davis, CA, USA
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286
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Devarapu SK, Lorenz G, Kulkarni OP, Anders HJ, Mulay SR. Cellular and Molecular Mechanisms of Autoimmunity and Lupus Nephritis. INTERNATIONAL REVIEW OF CELL AND MOLECULAR BIOLOGY 2017; 332:43-154. [PMID: 28526137 DOI: 10.1016/bs.ircmb.2016.12.001] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Autoimmunity involves immune responses directed against self, which are a result of defective self/foreign distinction of the immune system, leading to proliferation of self-reactive lymphocytes, and is characterized by systemic, as well as tissue-specific, inflammation. Numerous mechanisms operate to ensure the immune tolerance to self-antigens. However, monogenetic defects or genetic variants that weaken immune tolerance render susceptibility to the loss of immune tolerance, which is further triggered by environmental factors. In this review, we discuss the phenomenon of immune tolerance, genetic and environmental factors that influence the immune tolerance, factors that induce autoimmunity such as epigenetic and transcription factors, neutrophil extracellular trap formation, extracellular vesicles, ion channels, and lipid mediators, as well as costimulatory or coinhibitory molecules that contribute to an autoimmune response. Further, we discuss the cellular and molecular mechanisms of autoimmune tissue injury and inflammation during systemic lupus erythematosus and lupus nephritis.
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Affiliation(s)
- S K Devarapu
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
| | - G Lorenz
- Klinikum rechts der Isar, Abteilung für Nephrologie, Technische Universität München, Munich, Germany
| | | | - H-J Anders
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany
| | - S R Mulay
- Medizinische Klinik und Poliklinik IV, Klinikum der Universität München, Munich, Germany.
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287
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Molecular Mimicry between Chikungunya Virus and Host Components: A Possible Mechanism for the Arthritic Manifestations. PLoS Negl Trop Dis 2017; 11:e0005238. [PMID: 28125580 PMCID: PMC5268390 DOI: 10.1371/journal.pntd.0005238] [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: 05/13/2016] [Accepted: 12/06/2016] [Indexed: 12/23/2022] Open
Abstract
Background Chikungunya virus (CHIKV), a reemerging pathogen causes a self limited illness characterized by fever, headache, myalgia and arthralgia. However, 10–20% affected individuals develop persistent arthralgia which contributes to considerable morbidity. The exact molecular mechanisms underlying these manifestations are not well understood. The present study investigated the possible occurrence of molecular mimicry between CHIKV E1 glycoprotein and host human components. Methodology Bioinformatic tools were used to identify peptides of CHIKV E1 exhibiting similarity to host components. Two peptides (A&B) were identified using several bioinformatic tools, synthesised and used to validate the results obtained in silico. An ELISA was designed to assess the immunoreactivity of serum samples from CHIKV patients to these peptides. Further, experiments were conducted in a C57BL/6J experimental mouse model to investigate if peptide A and peptide B were indeed capable of inducing pathology. Findings The serum samples showed reactivity of varying degrees, indicating that these peptides are indeed being recognized by the host immune system during CHIKV infection. Further, these peptides when injected into C57BL/6J mice were able to induce significant inflammation in the muscles of C57BL/6J mice, similar to that observed in animals that were injected with CHIKV alone. Additionally, animals that were primed initially with CHIKV followed by a subsequent injection of the CHIKV peptides exhibited enhanced inflammatory pathology in the skeletal muscles as compared to animals that were injected with peptides or virus alone. Collectively these observations validate the hypothesis that molecular mimicry between CHIKV E1 protein and host proteins does contribute to pathology in CHIKV infection. The outcome of Chikungunya virus infection is usually benign but persistent arthritis has been reported in 10–20% of patients after Chikungunya fever. However, some reports have suggested that similarity between host proteins and viral proteins (molecular mimicry) leads to immune mediated damage. However, this has not been proved conclusively. Therefore, this study was undertaken to identify if molecular mimicry exists between CHIKV and host components. Using various bioinformatics tools we identified common sequences and structural homology between glycoprotein of the virus and two human host tissue proteins- HLA-B27 molecule and a domain of complement C3. Two peptides having homology to these human tissue components were synthesized. These peptides were recognized by antibodies present in serum of CHIKV patients. Experiments were conducted to investigate if the peptides were capable of inducing pathology in an experimental C57BL/6J mouse model. Both the peptides on their own were able to induce significant inflammation in the muscles of C57BL/6J mice similar to that observed in animals that were injected with CHIKV alone. Additionally, animals that were injected initially with CHIKV followed by a subsequent injection of the two CHIKV peptides exhibited increased pathology as compared to animals that were injected with peptides or virus alone.
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288
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Verkoczy L. Humanized Immunoglobulin Mice: Models for HIV Vaccine Testing and Studying the Broadly Neutralizing Antibody Problem. Adv Immunol 2017; 134:235-352. [PMID: 28413022 PMCID: PMC5914178 DOI: 10.1016/bs.ai.2017.01.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
A vaccine that can effectively prevent HIV-1 transmission remains paramount to ending the HIV pandemic, but to do so, will likely need to induce broadly neutralizing antibody (bnAb) responses. A major technical hurdle toward achieving this goal has been a shortage of animal models with the ability to systematically pinpoint roadblocks to bnAb induction and to rank vaccine strategies based on their ability to stimulate bnAb development. Over the past 6 years, immunoglobulin (Ig) knock-in (KI) technology has been leveraged to express bnAbs in mice, an approach that has enabled elucidation of various B-cell tolerance mechanisms limiting bnAb production and evaluation of strategies to circumvent such processes. From these studies, in conjunction with the wealth of information recently obtained regarding the evolutionary pathways and paratopes/epitopes of multiple bnAbs, it has become clear that the very features of bnAbs desired for their function will be problematic to elicit by traditional vaccine paradigms, necessitating more iterative testing of new vaccine concepts. To meet this need, novel bnAb KI models have now been engineered to express either inferred prerearranged V(D)J exons (or unrearranged germline V, D, or J segments that can be assembled into functional rearranged V(D)J exons) encoding predecessors of mature bnAbs. One encouraging approach that has materialized from studies using such newer models is sequential administration of immunogens designed to bind progressively more mature bnAb predecessors. In this review, insights into the regulation and induction of bnAbs based on the use of KI models will be discussed, as will new Ig KI approaches for higher-throughput production and/or altering expression of bnAbs in vivo, so as to further enable vaccine-guided bnAb induction studies.
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Affiliation(s)
- Laurent Verkoczy
- Duke University Human Vaccine Institute, Duke University School of Medicine, Durham, NC, United States.
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289
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Guarneri F, Giuffrida R, Di Bari F, Cannavò SP, Benvenga S. Thyroid Autoimmunity and Lichen. Front Endocrinol (Lausanne) 2017; 8:146. [PMID: 28701998 PMCID: PMC5484774 DOI: 10.3389/fendo.2017.00146] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2017] [Accepted: 06/09/2017] [Indexed: 12/12/2022] Open
Abstract
Lichen planus (LP) and lichen sclerosus (LS) are cutaneous-mucous diseases with uncertain epidemiology. Current data, which are likely to be underestimated, suggest a prevalence in the general population of 0.1-4% for cutaneous LP, 1.27-2.0% for oral LP, and 0.1-3.3% for LS. While etiology of lichen is still unknown, clinical and histological evidence show an (auto)immune pathogenesis. Association of lichen with autoimmune thyroid disease (AITD) has been investigated in few studies. This association appears better defined in the case of LS, while is more controversial for LP. In both situations, the frequency of the association is higher in females. We review the available literature on the correlation between the different types of lichen and AITD, and the literature on the genetic risk factors which are shared by both conditions. Such data suggest that a common pathogenic mechanism could be the cause for co-occurrence of lichen and AITD, at least in some patients. Additionally, analyzing literature data and in continuity with our previous work on other autoimmune diseases, we suggest that molecular mimicry could trigger both diseases, and thus explain their co-occurrence.
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Affiliation(s)
- Fabrizio Guarneri
- Department of Clinical and Experimental Medicine – Dermatology, University of Messina, Messina, Italy
- *Correspondence: Fabrizio Guarneri,
| | - Roberta Giuffrida
- Department of Clinical and Experimental Medicine – Dermatology, University of Messina, Messina, Italy
| | - Flavia Di Bari
- Department of Clinical and Experimental Medicine – Endocrinology, University of Messina, Messina, Italy
| | | | - Salvatore Benvenga
- Department of Clinical and Experimental Medicine – Endocrinology, University of Messina, Messina, Italy
- Master Program on Childhood, Adolescent and Women’s Endocrine Health, University of Messina, Messina, Italy
- Interdepartmental Program of Molecular & Clinical Endocrinology and Women’s Endocrine Health, University Hospital Policlinico “G. Martino”, Messina, Italy
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290
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Saleh MA, Salem H, El Azizy H. Autoantibodies other than Anti-desmogleins in Pemphigus Vulgaris Patients. Indian J Dermatol 2017; 62:47-51. [PMID: 28216725 PMCID: PMC5286753 DOI: 10.4103/0019-5154.198032] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
Abstract
Background: Pemphigus vulgaris (PV) is an immunoglobulin G-mediated autoimmune bullous skin disease. Nonorgan-specific antibodies were detected in Tunisian and Brazilian pemphigus patients with different prevalence. Materials and Methods: Fifty PV patients and fifty controls were screened for antinuclear antibodies (ANAs), anti-smooth muscle antibodies (ASMAs), anti-parietal antibodies (APAs), anti-mitochondrial antibodies, and Anti-nuclear cytoplasmic antibodies (ANCA) by indirect immunofluorescence. Results: Thirty-nine patients were female and 11 were male. Fifteen patients did not receive treatment before while 35 patients were on systemic steroid treatment ± azathioprine. Twenty (40%) of the PV patients and 1 (2%) control had positive ANA. ANA was significantly higher in PV patients than controls, P < 0.0001. ASMAs were detected in 20 (40%) PV patients and none of the controls. ASMA was significantly higher in PV patients than controls, P < 0.0001. No significant difference was detected between treated and untreated regarding ANA, P - 0.11. However, there was a significant difference between treated and untreated regarding ASMA, P - 0.03. Six patients (12%) and none of the controls had positive APA. There was a significant difference between the patients and the controls in APA. P - 0.027. Conclusion: Egyptian PV patients showed more prevalent ANA, ASMA, and APA than normal controls. Follow-up of those patients is essential to detect the early development of concomitant autoimmune disease. Environmental factors might account for the variability of the nonorgan-specific antibodies among different populations.
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Affiliation(s)
| | - Hedayat Salem
- Department of Medical Biochemistry, Cairo University, Cairo, Egypt; Department of Medical Biology, Faculty of Medicine, Jazan University, Jizan, Saudi Arabia
| | - Hoda El Azizy
- Department of Medical Biochemistry, Cairo University, Cairo, Egypt
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291
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Dandekar S, Wijesuriya H, Geiger T, Hamm D, Mathern GW, Owens GC. Shared HLA Class I and II Alleles and Clonally Restricted Public and Private Brain-Infiltrating αβ T Cells in a Cohort of Rasmussen Encephalitis Surgery Patients. Front Immunol 2016; 7:608. [PMID: 28066418 PMCID: PMC5165278 DOI: 10.3389/fimmu.2016.00608] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2016] [Accepted: 12/01/2016] [Indexed: 11/26/2022] Open
Abstract
Rasmussen encephalitis (RE) is a rare pediatric neuroinflammatory disease characterized by intractable seizures and unilateral brain atrophy. T cell infiltrates in affected brain tissue and the presence of circulating autoantibodies in some RE patients have indicated that RE may be an autoimmune disease. The strongest genetic links to autoimmunity reside in the MHC locus, therefore, we determined the human leukocyte antigen (HLA) class I and class II alleles carried by a cohort of 24 RE surgery cases by targeted in-depth genomic sequencing. Compared with a reference population the allelic frequency of three alleles, DQA1*04:01:01, DQB1*04:02:01, and HLA-C*07:02:01:01 indicated that they might confer susceptibility to the disease. It has been reported that HLA-C*07:02 is a risk factor for Graves disease. Further, eight patients in the study cohort carried HLA-A*03:01:01:01, which has been linked to susceptibility to multiple sclerosis. Four patients carried a combination of three HLA class II alleles that has been linked to type 1 diabetes (DQA1*05:01:01:01~DQB1*02:01:01~DRB1*03:01:01:01), and five patients carried a combination of HLA class II alleles that has been linked to the risk of contracting multiple sclerosis (DQA1*01:02:01:01, DQB1*06:02:01, DRB1*15:01:01:01). We also analyzed the diversity of αβ T cells in brain and blood specimens from 14 of these RE surgery cases by sequencing the third complementarity regions (CDR3s) of rearranged T cell receptor β genes. A total of 31 unique CDR3 sequences accounted for the top 5% of all CDR3 sequences in the 14 brain specimens. Thirteen of these sequences were found in sequencing data from healthy blood donors; the remaining 18 sequences were patient specific. These observations provide evidence for the clonal expansion of public and private T cells in the brain, which might be influenced by the RE patient’s HLA haplotype.
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Affiliation(s)
- Sugandha Dandekar
- Department of Medicine, David Geffen School of Medicine at the University of California Los Angeles , Los Angeles, CA , USA
| | - Hemani Wijesuriya
- Pathology and Laboratory Medicine, David Geffen School of Medicine at the University of California Los Angeles , Los Angeles, CA , USA
| | - Tim Geiger
- Adaptive Biotechnologies Inc. , Seattle, WA , USA
| | - David Hamm
- Adaptive Biotechnologies Inc. , Seattle, WA , USA
| | - Gary W Mathern
- Department of Neurosurgery, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA, USA; Intellectual and Developmental Disabilities Research Center, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA, USA; Brain Research Institute, David Geffen School of Medicine at the University of California Los Angeles, Los Angeles, CA, USA; Mattel Children's Hospital, Los Angeles, CA, USA
| | - Geoffrey C Owens
- Department of Neurosurgery, David Geffen School of Medicine at the University of California Los Angeles , Los Angeles, CA , USA
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292
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Yang L, Wang L, Wang X, Xian CJ, Lu H. A Possible Role of Intestinal Microbiota in the Pathogenesis of Ankylosing Spondylitis. Int J Mol Sci 2016; 17:ijms17122126. [PMID: 27999312 PMCID: PMC5187926 DOI: 10.3390/ijms17122126] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2016] [Revised: 12/09/2016] [Accepted: 12/14/2016] [Indexed: 12/12/2022] Open
Abstract
Ankylosing spondylitis (AS) is a chronic inflammatory disease primarily affecting the sacroiliac joints and the spine, for which the pathogenesis is thought to be a result of the combination of host genetic factors and environmental triggers. However, the precise factors that determine one’s susceptibility to AS remain to be unraveled. With 100 trillion bacteria residing in the mammalian gut having established a symbiotic relation with their host influencing many aspects of host metabolism, physiology, and immunity, a growing body of evidence suggests that intestinal microbiota may play an important role in AS. Several mechanisms have been suggested to explain the potential role of the microbiome in the etiology of AS, such as alterations of intestinal permeability, stimulation of immune responses, and molecular mimicry. In this review, the existing evidence for the involvement of the microbiome in AS pathogenesis was discussed and the potential of intestinal microbiome-targeting strategies in the prevention and treatment of AS was evaluated.
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Affiliation(s)
- Lianjun Yang
- Academy of Orthopedics of Guangdong Province, Orthopaedic Hospital of Guangdong Province, Department of Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China.
| | - Liping Wang
- Academy of Orthopedics of Guangdong Province, Orthopaedic Hospital of Guangdong Province, Department of Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China.
- Sansom Institute for Health Research and School of Pharmacy and Medical Sciences, University of South Australia, Adelaide SA5001, Australia.
| | - Xin Wang
- Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane QLD4059, Australia.
| | - Cory J Xian
- Academy of Orthopedics of Guangdong Province, Orthopaedic Hospital of Guangdong Province, Department of Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China.
- Sansom Institute for Health Research and School of Pharmacy and Medical Sciences, University of South Australia, Adelaide SA5001, Australia.
| | - Hai Lu
- Academy of Orthopedics of Guangdong Province, Orthopaedic Hospital of Guangdong Province, Department of Orthopedic Surgery, The Third Affiliated Hospital of Southern Medical University, Guangzhou 510630, China.
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293
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Patel P, Kearney JF. Immunological Outcomes of Antibody Binding to Glycans Shared between Microorganisms and Mammals. JOURNAL OF IMMUNOLOGY (BALTIMORE, MD. : 1950) 2016; 197:4201-4209. [PMID: 27864551 PMCID: PMC5119654 DOI: 10.4049/jimmunol.1600872] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Accepted: 08/04/2016] [Indexed: 02/07/2023]
Abstract
Glycans constitute basic cellular components of living organisms across biological kingdoms, and glycan-binding Abs participate in many cellular interactions during immune defense against pathogenic organisms. Glycan epitopes are expressed as carbohydrate-only entities or as oligomers or polymers on proteins and lipids. Such epitopes on glycoproteins may be formed by posttranslational modifications or neoepitopes resulting from metabolic-catabolic processes and can be altered during inflammation. Pathogenic organisms can display host-like glycans to evade the host immune response. However, Abs to glycans, shared between microorganisms and the host, exist naturally. These Abs are able to not only protect against infectious disease, but also are involved in host housekeeping functions and can suppress allergic disease. Despite the reactivity of these Abs to glycans shared between microorganisms and host, diverse tolerance-inducing mechanisms permit the B cell precursors of these Ab-secreting cells to exist within the normal B cell repertoire.
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Affiliation(s)
- Preeyam Patel
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294
| | - John F Kearney
- Department of Microbiology, University of Alabama at Birmingham, Birmingham, AL 35294
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294
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Verwoerd A, Ter Haar NM, de Roock S, Vastert SJ, Bogaert D. The human microbiome and juvenile idiopathic arthritis. Pediatr Rheumatol Online J 2016; 14:55. [PMID: 27650128 PMCID: PMC5028952 DOI: 10.1186/s12969-016-0114-4] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2016] [Accepted: 09/15/2016] [Indexed: 01/05/2023] Open
Abstract
Juvenile idiopathic arthritis (JIA) is the most common rheumatic disease in childhood. The pathogenesis of JIA is thought to be the result of a combination of host genetic and environmental triggers. However, the precise factors that determine one's susceptibility to JIA remain to be unravelled. The microbiome has received increasing attention as a potential contributing factor to the development of a wide array of immune-mediated diseases, including inflammatory bowel disease, type 1 diabetes and rheumatoid arthritis. Also in JIA, there is accumulating evidence that the composition of the microbiome is different from healthy individuals. A growing body of evidence indeed suggests that, among others, the microbiome may influence the development of the immune system, the integrity of the intestinal mucosal barrier, and the differentiation of T cell subsets. In turn, this might lead to dysregulation of the immune system, thereby possibly playing a role in the development of JIA. The potential to manipulate the microbiome, for example by faecal microbial transplantation, might then offer perspectives for future therapeutic interventions. Before we can think of such interventions, we need to first obtain a deeper understanding of the cause and effect relationship between JIA and the microbiome. In this review, we discuss the existing evidence for the involvement of the microbiome in JIA pathogenesis and explore the potential mechanisms through which the microbiome may influence the development of autoimmunity in general and JIA specifically.
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Affiliation(s)
- Anouk Verwoerd
- Laboratory of Translational Immunology, University Medical Centre Utrecht, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands
| | - Nienke M. Ter Haar
- Laboratory of Translational Immunology, University Medical Centre Utrecht, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands
| | - Sytze de Roock
- Laboratory of Translational Immunology, University Medical Centre Utrecht, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands
| | - Sebastiaan J. Vastert
- Laboratory of Translational Immunology, University Medical Centre Utrecht, Heidelberglaan 100, 3584 CX Utrecht, The Netherlands ,Department of Paediatric Rheumatology, Wilhelmina Children’s Hospital, Lundlaan 6, 3584 EA Utrecht, The Netherlands
| | - Debby Bogaert
- Department of Paediatric Infectious Diseases, Wilhelmina Children's Hospital, Lundlaan 6, 3584 EA, Utrecht, The Netherlands.
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295
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Lin CH, Chi CY, Shih HP, Ding JY, Lo CC, Wang SY, Kuo CY, Yeh CF, Tu KH, Liu SH, Chen HK, Ho CH, Ho MW, Lee CH, Lai HC, Ku CL. Identification of a major epitope by anti-interferon-γ autoantibodies in patients with mycobacterial disease. Nat Med 2016; 22:994-1001. [PMID: 27525523 DOI: 10.1038/nm.4158] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2016] [Accepted: 07/01/2016] [Indexed: 02/07/2023]
Abstract
The binding of autoantibodies (autoAbs) to interferon (IFN)-γ in people with mycobacterial diseases has become an emerging medical concern. Many patients display specific human leukocyte antigen (HLA) class II haplotypes, which suggests that a common T cell-dependent and B cell-dependent mechanism might underlie the production of specific anti-IFN-γ autoAbs. We show here that these autoAbs target a major epitope (amino acids 121-131, designated position (P)121-131) in a region crucial for IFN-γ receptor (IFN-γR) activation to impair IFN-γ-mediated activities. The amino acid sequence of this epitope is highly homologous to a stretch in the Noc2 protein of Aspergillus spp., which was cross-reactive with autoAbs from patients. Rats immunized with Aspergillus Noc2 developed antibodies that reacted with human IFN-γ. We generated an epitope-erased variant of IFN-γ (EE-IFN-γ), in which the major neutralizing epitope region was altered. The binding affinity of anti-IFN-γ autoAbs for EE-IFN-γ was reduced by about 40%, as compared to that for IFN-γ1-131. Moreover, EE-IFN-γ activated the IFN-γR downstream signaling pathway ex vivo, irrespectively of anti-IFN-γ autoAbs. In conclusion, we identified a common, crucial B cell epitope that bound to anti-IFN-γ autoAbs in patients, and we propose a molecular-mimicry model for autoAb development. In addition, treatment with EE-IFN-γ might be worth investigating in patients producing anti-IFN-γ autoAbs.
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Affiliation(s)
- Chia-Hao Lin
- Laboratory of Human Immunology and Infectious Diseases, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
- Graduate Institute of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Chih-Yu Chi
- Laboratory of Human Immunology and Infectious Diseases, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
- Division of Infectious Diseases, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan
- School of Medicine, College of Medicine, China Medical University, Taichung, Taiwan
| | - Han-Po Shih
- Laboratory of Human Immunology and Infectious Diseases, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Jing-Ya Ding
- Laboratory of Human Immunology and Infectious Diseases, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Chia-Chi Lo
- Laboratory of Human Immunology and Infectious Diseases, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
| | - Shang-Yu Wang
- Laboratory of Human Immunology and Infectious Diseases, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
- Division of Trauma and Emergency Surgery, Department of General Surgery, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Chen-Yen Kuo
- Laboratory of Human Immunology and Infectious Diseases, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
- Division of Infectious Diseases, Department of Pediatrics, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Chun-Fu Yeh
- Laboratory of Human Immunology and Infectious Diseases, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
- Division of Infectious Diseases, Department of Internal Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- Chang Gung University College of Medicine, Taoyuan, Taiwan
| | - Kun-Hua Tu
- Laboratory of Human Immunology and Infectious Diseases, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
- Chang Gung University College of Medicine, Taoyuan, Taiwan
- Kidney Research Center, Department of Nephrology, Chang Gung Memorial Hospital, Taipei, Taiwan
| | - Shou-Hsuan Liu
- Laboratory of Human Immunology and Infectious Diseases, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
- Chang Gung University College of Medicine, Taoyuan, Taiwan
- Kidney Research Center, Department of Nephrology, Chang Gung Memorial Hospital, Taipei, Taiwan
| | - Hung-Kai Chen
- Laboratory of Translational Medicine, Development Center for Biotechnology, New Taipei City, Taiwan
| | - Chen-Hsuan Ho
- Laboratory of Translational Medicine, Development Center for Biotechnology, New Taipei City, Taiwan
| | - Mao-Wang Ho
- Division of Infectious Diseases, Department of Internal Medicine, China Medical University Hospital, Taichung, Taiwan
| | - Chen-Hsiang Lee
- Division of Infectious Diseases, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Hsin-Chin Lai
- Graduate Institute of Biomedical Sciences, Chang Gung University, Taoyuan, Taiwan
- Chang Gung Immunology Consortium, Chang Gung Memorial Hospital and Chang Gung University, Taoyuan, Taiwan
| | - Cheng-Lung Ku
- Laboratory of Human Immunology and Infectious Diseases, Graduate Institute of Clinical Medical Sciences, Chang Gung University, Taoyuan, Taiwan
- Division of Infectious Diseases, Department of Internal Medicine, Chang Gung Memorial Hospital, Taoyuan, Taiwan
- Chang Gung Immunology Consortium, Chang Gung Memorial Hospital and Chang Gung University, Taoyuan, Taiwan
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan
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296
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Coit P, Sawalha AH. The human microbiome in rheumatic autoimmune diseases: A comprehensive review. Clin Immunol 2016; 170:70-9. [DOI: 10.1016/j.clim.2016.07.026] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2016] [Accepted: 07/30/2016] [Indexed: 12/17/2022]
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297
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SOUSA MDAC, PARANÁ R, ANDRADE LJDO. SEQUENCE SIMILARITY BETWEEN THYROID SELF-PROTEIN AND HEPATITIS C VIRUS POLYPROTEIN: possible triggering mechanism of autoimmune thyroiditis. ARQUIVOS DE GASTROENTEROLOGIA 2016; 53:185-91. [DOI: 10.1590/s0004-28032016000300012] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2015] [Accepted: 04/01/2016] [Indexed: 01/04/2023]
Abstract
ABSTRACT Background - Exposure to viral antigens that share amino acid sequence similar with self- antigens might trigger autoimmune diseases in genetically predisposed individuals, and the molecular mimicry theory suggests that epitope mimicry between the virus and human proteins can activate autoimmune disease. Objective - The purpose of this study is to explore the possible sequence similarity between the amino acid sequences of thyroid self-protein and hepatitis C virus proteins, using databanks of proteins and immunogenic peptides, to explain autoimmune thyroid disease. Methods - Were performed the comparisons between the amino acid sequence of the hepatitis C virus polyprotein and thyroid self-protein human, available in the database of National Center for Biotechnology Information on Basic Local Alignment Search Tool. Results - The sequence similarity was related each hepatitis C virus genotype to each thyroid antigen. The similarities between the thyroid and the viral peptides ranged from 21.0 % (31 identical residues out of 147 amino acid in the sequence) to 71.0% (5 identical residues out of 7 amino acid in the sequence). Conclusion - Bioinformatics data, suggest a possible pathogenic link between hepatitis C virus and autoimmune thyroid disease. Through of molecular mimicry is observed that sequences similarities between viral polyproteins and self-proteins thyroid could be a mechanism of induction of crossover immune response to self-antigens, with a breakdown of self-tolerance, resulting in autoimmune thyroid disease.
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298
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Zissel G, Müller-Quernheim J. Specific antigen(s) in sarcoidosis: a link to autoimmunity? Eur Respir J 2016; 47:707-9. [PMID: 26929312 DOI: 10.1183/13993003.01791-2015] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Gernot Zissel
- Medical Center - University of Freiburg, Center for Medicine, Dept of Pneumology, Freiburg, Germany
| | - Joachim Müller-Quernheim
- Medical Center - University of Freiburg, Center for Medicine, Dept of Pneumology, Freiburg, Germany
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299
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Ruhrman-Shahar N, Torres-Ruiz J, Rotman-Pikielny P, Levy Y. Autoimmune reaction after anti-tetanus vaccination—description of four cases and review of the literature. Immunol Res 2016; 65:157-163. [DOI: 10.1007/s12026-016-8822-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
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300
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Development of rheumatoid arthritis during treatment of multiple sclerosis with interferon beta 1-a. Coincidence of two conditions or a complication of treatment: A case report. J Adv Res 2016; 7:611-3. [PMID: 27489727 PMCID: PMC4950118 DOI: 10.1016/j.jare.2016.06.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2016] [Revised: 06/13/2016] [Accepted: 06/21/2016] [Indexed: 11/21/2022] Open
Abstract
Coexistence of multiple sclerosis (MS) with other autoimmune diseases has been attributed to common background genetic or environmental factors. This study presents development of rheumatoid arthritis (RA) during treatment of MS. The MS was confirmed by the Mc Donald criteria and the diagnosis of RA was confirmed by the ACR/EULAR criteria. A 35 years old women with 9 years of MS who was receiving interferon beta 1-a (INF) for 7 years and who did not respond to conventional therapy of RA over 8 months developed clinical manifestations of RA. But a rapid response was observed after discontinuation of INF. These findings suggest a possible contribution of INF in the development of RA.
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