1
|
Rengasamy KR, Khan H, Gowrishankar S, Lagoa RJ, Mahomoodally FM, Khan Z, Suroowan S, Tewari D, Zengin G, Hassan ST, Pandian SK. The role of flavonoids in autoimmune diseases: Therapeutic updates. Pharmacol Ther 2019; 194:107-131. [DOI: 10.1016/j.pharmthera.2018.09.009] [Citation(s) in RCA: 88] [Impact Index Per Article: 17.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
|
2
|
Comte D, Karampetsou MP, Humbel M, Tsokos GC. Signaling lymphocyte activation molecule family in systemic lupus erythematosus. Clin Immunol 2018; 204:57-63. [PMID: 30415085 DOI: 10.1016/j.clim.2018.11.001] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2018] [Revised: 11/04/2018] [Accepted: 11/05/2018] [Indexed: 01/09/2023]
Abstract
Systemic lupus erythematosus (SLE) is a multifactorial autoimmune disease characterized by a breakdown in immune tolerance leading to the development of auto-reactive lymphocytes and autoantibodies. Recent findings have provided new insight on the role of the signaling lymphocytic activation molecule family (SLAMF) receptors, a group of nine co-regulatory molecules involved in the activation of hematopoietic cells, and their downstream protein SLAM-associated protein (SAP), into the pathogenesis of SLE. This review summarizes the current knowledge on SLAMF in human SLE immunopathogenesis, and the importance of SLAMF molecules as new therapeutic targets.
Collapse
Affiliation(s)
- Denis Comte
- Divisions of Immunology and Allergy, Lausanne University Hospital, Lausanne, Switzerland.
| | | | - Morgane Humbel
- Divisions of Immunology and Allergy, Lausanne University Hospital, Lausanne, Switzerland
| | | |
Collapse
|
3
|
Genetic and epigenetic influences on the loss of tolerance in autoimmunity. Cell Mol Immunol 2018; 15:575-585. [PMID: 29503444 DOI: 10.1038/cmi.2017.137] [Citation(s) in RCA: 52] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2017] [Accepted: 10/21/2017] [Indexed: 12/23/2022] Open
Abstract
Immunological tolerance loss is fundamental to the development of autoimmunity; however, the underlying mechanisms remain elusive. Immune tolerance consists of central and peripheral tolerance. Central tolerance, which occurs in the thymus for T cells and bone marrow for B cells, is the primary way that the immune system discriminates self from non-self. Peripheral tolerance, which occurs in tissues and lymph nodes after lymphocyte maturation, controls self-reactive immune cells and prevents over-reactive immune responses to various environment factors. Loss of tolerance results in autoimmune disorders, such as systemic lupus erythematosus (SLE), rheumatoid arthritis (RA), type 1 diabetes (T1D) and primary biliary cirrhosis (PBC). The etiology and pathogenesis of autoimmune diseases are highly complicated. Both genetic predisposition and epigenetic modifications are implicated in the loss of tolerance and autoimmunity. In this review, we will discuss the genetic and epigenetic influences on tolerance breakdown in autoimmunity. Genetic and epigenetic influences on autoimmune diseases, such as SLE, RA, T1D and PBC, will also be briefly discussed.
Collapse
|
4
|
Oliveira ALDB, Monteiro VVS, Navegantes-Lima KC, Reis JF, Gomes RDS, Rodrigues DVS, Gaspar SLDF, Monteiro MC. Resveratrol Role in Autoimmune Disease-A Mini-Review. Nutrients 2017; 9:nu9121306. [PMID: 29194364 PMCID: PMC5748756 DOI: 10.3390/nu9121306] [Citation(s) in RCA: 69] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2017] [Revised: 09/20/2017] [Accepted: 10/20/2017] [Indexed: 02/07/2023] Open
Abstract
Autoimmune diseases are still considered to be pressing concerns due the fact that they are leaders in death and disability causes worldwide. Resveratrol is a polyphenol derived from a variety of foods and beverages, including red grapes and red wine. Anti-inflammatory, antioxidant, and antiaging properties of resveratrol have been reported, and in some animal and human studies this compound reduced and ameliorated the progression of autoimmune diseases, such as rheumatoid arthritis, systemic lupus erythematosus, psoriasis, inflammatory bowel disease, and type 1 diabetes mellitus. Thus, this review aims to summarize and critically analyze the role of resveratrol in the modulation of several organ-specific or systemic autoimmune diseases.
Collapse
Affiliation(s)
- Ana Lígia de Brito Oliveira
- Pharmaceutical Science Post-Graduation Program, Neuroscience and Cellular Biology Post Graduation Program, Faculty of Pharmacy, Federal University of Pará, Avenue Augusto Correa SN, Guamá, Pará 66075-110, Brazil.
| | - Valter Vinicius Silva Monteiro
- School of Pharmacy, Health Science Institute, Federal University of Pará/UFPA, Avenue Augusto Correa SN, Guamá, Pará 66075-110, Brazil.
| | - Kely Campos Navegantes-Lima
- Pharmaceutical Science Post-Graduation Program, Neuroscience and Cellular Biology Post Graduation Program, Faculty of Pharmacy, Federal University of Pará, Avenue Augusto Correa SN, Guamá, Pará 66075-110, Brazil.
| | - Jordano Ferreira Reis
- School of Pharmacy, Health Science Institute, Federal University of Pará/UFPA, Avenue Augusto Correa SN, Guamá, Pará 66075-110, Brazil.
| | - Rafaelli de Souza Gomes
- Pharmaceutical Science Post-Graduation Program, Neuroscience and Cellular Biology Post Graduation Program, Faculty of Pharmacy, Federal University of Pará, Avenue Augusto Correa SN, Guamá, Pará 66075-110, Brazil.
| | - Dávila Valentina Silva Rodrigues
- School of Pharmacy, Health Science Institute, Federal University of Pará/UFPA, Avenue Augusto Correa SN, Guamá, Pará 66075-110, Brazil.
| | - Silvia Letícia de França Gaspar
- School of Pharmacy, Health Science Institute, Federal University of Pará/UFPA, Avenue Augusto Correa SN, Guamá, Pará 66075-110, Brazil.
| | - Marta Chagas Monteiro
- Pharmaceutical Science Post-Graduation Program, Neuroscience and Cellular Biology Post Graduation Program, Faculty of Pharmacy, Federal University of Pará, Avenue Augusto Correa SN, Guamá, Pará 66075-110, Brazil.
| |
Collapse
|
5
|
Gensous N, Schmitt N, Richez C, Ueno H, Blanco P. T follicular helper cells, interleukin-21 and systemic lupus erythematosus. Rheumatology (Oxford) 2017; 56:516-523. [PMID: 27498357 DOI: 10.1093/rheumatology/kew297] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2016] [Indexed: 11/13/2022] Open
Abstract
SLE is a chronic systemic autoimmune disease characterized by a breakdown of tolerance to nuclear antigens and generation of high-affinity pathogenic autoantibodies. These autoantibodies form, with autoantigens, immune complexes that are involved in organ and tissue damages. Understanding how the production of these pathogenic autoantibodies arises is of prime importance. T follicular helper cells (Tfh) and IL-21 have emerged as central players in this process. This article reviews the pathogenic role of Tfh cells and IL-21 in SLE.
Collapse
Affiliation(s)
| | | | | | - Hideki Ueno
- Baylor Institute for Immunology Research, Baylor Research Institute, Dallas, TX, USA
| | | |
Collapse
|
6
|
Banchereau R, Cepika AM, Banchereau J, Pascual V. Understanding Human Autoimmunity and Autoinflammation Through Transcriptomics. Annu Rev Immunol 2017; 35:337-370. [PMID: 28142321 PMCID: PMC5937945 DOI: 10.1146/annurev-immunol-051116-052225] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Transcriptomics, the high-throughput characterization of RNAs, has been instrumental in defining pathogenic signatures in human autoimmunity and autoinflammation. It enabled the identification of new therapeutic targets in IFN-, IL-1- and IL-17-mediated diseases. Applied to immunomonitoring, transcriptomics is starting to unravel diagnostic and prognostic signatures that stratify patients, track molecular changes associated with disease activity, define personalized treatment strategies, and generally inform clinical practice. Herein, we review the use of transcriptomics to define mechanistic, diagnostic, and predictive signatures in human autoimmunity and autoinflammation. We discuss some of the analytical approaches applied to extract biological knowledge from high-dimensional data sets. Finally, we touch upon emerging applications of transcriptomics to study eQTLs, B and T cell repertoire diversity, and isoform usage.
Collapse
Affiliation(s)
| | | | - Jacques Banchereau
- The Jackson Laboratory for Genomic Medicine, Farmington, Connecticut 06030;
| | - Virginia Pascual
- Baylor Institute for Immunology Research, Dallas, Texas 75204; , ,
| |
Collapse
|
7
|
Umare VD, Pradhan VD, Rajadhyaksha AG, Patwardhan MM, Ghosh K, Nadkarni AH. Impact of TNF-α and LTα gene polymorphisms on genetic susceptibility in Indian SLE patients. Hum Immunol 2017; 78:201-208. [DOI: 10.1016/j.humimm.2016.11.002] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Revised: 10/14/2016] [Accepted: 11/09/2016] [Indexed: 11/26/2022]
|
8
|
Zhan Y, Guo Y, Lu Q. Aberrant Epigenetic Regulation in the Pathogenesis of Systemic Lupus Erythematosus and Its Implication in Precision Medicine. Cytogenet Genome Res 2016; 149:141-155. [PMID: 27607472 DOI: 10.1159/000448793] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/17/2016] [Indexed: 11/19/2022] Open
Abstract
Great progress has been made in the last decades in understanding the complex immune dysregulation in systemic lupus erythematosus (SLE), yet the efforts to pursue an effective treatment of SLE proved to be futile. The pathoetiology of SLE involves extremely complicated and multifactorial interaction among various genetic and epigenetic factors. Multiple gene loci predispose to disease susceptibility, and the interaction with epigenetic modifications mediated through sex, hormones, and the hypothalamo-pituitary-adrenal axis complicates susceptibility and manifestations of this disease. Finally, certain environmental and psychological factors probably trigger the disease via epigenetic mechanisms. In this review, we summarize and discuss recent epigenetic studies of SLE and suggest a personalized approach to the dissection of disease onset and therapy or precision medicine. We speculate that in the future, precision medicine based on epigenetic and genetic information could help guide more effective targeted therapeutic intervention.
Collapse
Affiliation(s)
- Yi Zhan
- Hunan Key Laboratory of Medical Epigenomics, Department of Dermatology, Second Xiangya Hospital, Central South University, Changsha, PR China
| | | | | |
Collapse
|
9
|
TNF-α - 308 G > A and IFN-γ + 874 A > T gene polymorphisms in Egyptian patients with lupus erythematosus. Meta Gene 2016; 9:137-41. [PMID: 27331019 PMCID: PMC4909826 DOI: 10.1016/j.mgene.2016.06.002] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2016] [Revised: 05/19/2016] [Accepted: 06/02/2016] [Indexed: 01/18/2023] Open
|
10
|
Ho RC, Ong H, Thiaghu C, Lu Y, Ho CS, Zhang MW. Genetic Variants That Are Associated with Neuropsychiatric Systemic Lupus Erythematosus. J Rheumatol 2016; 43:541-51. [PMID: 26773105 DOI: 10.3899/jrheum.150884] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/15/2015] [Indexed: 12/15/2022]
Abstract
OBJECTIVE While genetic risks have been implicated in systemic lupus erythematosus (SLE), the involvement of various genotypes in neuropsychiatric SLE (NPSLE) remains uncertain. The present metaanalysis aimed to combine data from different studies and evaluate the association between each genotype and the risk of developing NPSLE. METHODS Studies were searched and retrieved from online databases (PubMed, EMBASE, BIOSIS, and ScienceDirect). Case-control studies were chosen if they reported genotype frequencies of the γ Fc region (FCγR) receptors II-A, III-A, and III-B; tumor necrosis factor-α (TNF-α); mannan-binding lectin (MBL); integrin alpha M (ITGAM); interleukin (IL) 1, IL-1β, and IL-6; IL-10 promoter; and vitamin D genes. The OR were used to assess the strength of this association between patients with NPSLE and SLE. RESULTS A total of 33 studies were considered in this metaanalysis. The results suggest that these genotypes demonstrated a significant association with NPSLE: the homozygous FCγR IIIa 158 FF genotype (OR 1.89, p = 0.03 for FF vs VV + FV), heterozygous FCγR IIIb NA1/2 genotype (OR 2.14, p = 0.03 for NA1/2 vs NA1/1; OR 1.81, p = 0.04 for NA1/2 vs NA1/1 + NA2/2), and homozygous ITGAM rs1143679 HH genotype (OR 3.39, p = 0.04 for HH vs RH; OR 3.11, p = 0.048 for HH vs RR + RH). Polymorphisms of the TNF-α, MBL2, IL-1, IL-1β, IL-6, IL-10 promoter, and vitamin D receptor genes did not show a statistically significant association with the risk of developing NPSLE (p > 0.05). CONCLUSION This metaanalysis indicates that polymorphisms in the pathways of immune complex clearance, such as the FcγRIIIa, FcγRIIIb, and ITGAM genotypes, are potential susceptibility genes for NPSLE.
Collapse
Affiliation(s)
- Roger C Ho
- From the Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; Institute of Mental Health, Singapore; Department of Clinical Psychology and Psychiatry/School of Public Health, Zhejiang University College of Medicine, Hangzhou, China.R.C. Ho, FRCPC, Assistant Professor, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; H. Ong, MBBS, Medical Officer, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; C. Thiaghu, MBBS, Medical Officer, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; Y. Lu, PhD, Assistant Professor, Department of Clinical Psychology and Psychiatry/School of Public Health, Zhejiang University College of Medicine; C.S. Ho, MRCPsych, Specialist Registrar, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; M.W. Zhang, MRCPsych, Specialist Registrar, Institute of Mental Health
| | - Huiyi Ong
- From the Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; Institute of Mental Health, Singapore; Department of Clinical Psychology and Psychiatry/School of Public Health, Zhejiang University College of Medicine, Hangzhou, China.R.C. Ho, FRCPC, Assistant Professor, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; H. Ong, MBBS, Medical Officer, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; C. Thiaghu, MBBS, Medical Officer, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; Y. Lu, PhD, Assistant Professor, Department of Clinical Psychology and Psychiatry/School of Public Health, Zhejiang University College of Medicine; C.S. Ho, MRCPsych, Specialist Registrar, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; M.W. Zhang, MRCPsych, Specialist Registrar, Institute of Mental Health
| | - Chandra Thiaghu
- From the Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; Institute of Mental Health, Singapore; Department of Clinical Psychology and Psychiatry/School of Public Health, Zhejiang University College of Medicine, Hangzhou, China.R.C. Ho, FRCPC, Assistant Professor, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; H. Ong, MBBS, Medical Officer, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; C. Thiaghu, MBBS, Medical Officer, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; Y. Lu, PhD, Assistant Professor, Department of Clinical Psychology and Psychiatry/School of Public Health, Zhejiang University College of Medicine; C.S. Ho, MRCPsych, Specialist Registrar, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; M.W. Zhang, MRCPsych, Specialist Registrar, Institute of Mental Health
| | - Yanxia Lu
- From the Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; Institute of Mental Health, Singapore; Department of Clinical Psychology and Psychiatry/School of Public Health, Zhejiang University College of Medicine, Hangzhou, China.R.C. Ho, FRCPC, Assistant Professor, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; H. Ong, MBBS, Medical Officer, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; C. Thiaghu, MBBS, Medical Officer, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; Y. Lu, PhD, Assistant Professor, Department of Clinical Psychology and Psychiatry/School of Public Health, Zhejiang University College of Medicine; C.S. Ho, MRCPsych, Specialist Registrar, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; M.W. Zhang, MRCPsych, Specialist Registrar, Institute of Mental Health.
| | - Cyrus S Ho
- From the Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; Institute of Mental Health, Singapore; Department of Clinical Psychology and Psychiatry/School of Public Health, Zhejiang University College of Medicine, Hangzhou, China.R.C. Ho, FRCPC, Assistant Professor, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; H. Ong, MBBS, Medical Officer, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; C. Thiaghu, MBBS, Medical Officer, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; Y. Lu, PhD, Assistant Professor, Department of Clinical Psychology and Psychiatry/School of Public Health, Zhejiang University College of Medicine; C.S. Ho, MRCPsych, Specialist Registrar, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; M.W. Zhang, MRCPsych, Specialist Registrar, Institute of Mental Health
| | - Melvyn W Zhang
- From the Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; Institute of Mental Health, Singapore; Department of Clinical Psychology and Psychiatry/School of Public Health, Zhejiang University College of Medicine, Hangzhou, China.R.C. Ho, FRCPC, Assistant Professor, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; H. Ong, MBBS, Medical Officer, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; C. Thiaghu, MBBS, Medical Officer, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; Y. Lu, PhD, Assistant Professor, Department of Clinical Psychology and Psychiatry/School of Public Health, Zhejiang University College of Medicine; C.S. Ho, MRCPsych, Specialist Registrar, Department of Psychological Medicine, Yong Loo Lin School of Medicine, National University of Singapore; M.W. Zhang, MRCPsych, Specialist Registrar, Institute of Mental Health
| |
Collapse
|
11
|
Li Y, Zhou A, Lv G, Li P, Chen S, Li J, Wen X, Wu Z, Zhang S, Wang J, Zhang F, Li Y. Single-nucleotide polymorphisms in the PLA2R1 gene are associated with systemic lupus erythematosus and lupus nephritis in a Chinese Han population. Immunol Res 2015; 64:324-8. [DOI: 10.1007/s12026-015-8755-9] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
12
|
Fang TJ, Lin YZ, Liu CC, Lin CH, Li RN, Wu CC, Ou TT, Tsai WC, Yen JH. Methylation and gene expression of histone deacetylases 6 in systemic lupus erythematosus. Int J Rheum Dis 2015; 19:968-973. [PMID: 26461065 DOI: 10.1111/1756-185x.12783] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
AIM The purpose of this study is to investigate the role of methylation in the histone deacetylases 6 (HDAC6) promoter and HDAC6 messenger RNA (mRNA) expression in the pathogenesis of systemic lupus erythematosus (SLE). METHOD Direct bisulfite-polymerase chain reaction (PCR) sequencing was performed to detect the HDAC6 promoter methylation in 33 patients with SLE and 35 healthy controls. The HDAC6 mRNA expression was measured in 93 SLE patients and 84 healthy controls by using the method of quantitative real-time PCR. RESULTS This study demonstrated that the methylation rates at HDAC6-680, -660 and -658 were significantly increased in the SLE patients compared with healthy controls (P = 0.041, 0.034 and 0.029, respectively). The SLE patients also had lower HDAC6 mRNA expression than the controls (P = 0.031). However, there was no significant difference in HDAC6 mRNA expression between patients with active and inactive SLE. CONCLUSION The SLE patients had higher methylation in the HDAC6 promoter and lower HDAC6 mRNA expression than the controls. These changes may be related to the susceptibility of SLE. However, they are not associated with the disease activity of SLE.
Collapse
Affiliation(s)
- Tzu-Jung Fang
- Division of Geriatrics and Gerontology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Yuan-Zhao Lin
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Ching-Ching Liu
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Chia-Hui Lin
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Ruei-Nian Li
- Department of Biomedical Science and Environmental Biology, College of Life Science, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Cheng-Chin Wu
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Tsan-Teng Ou
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Wen-Chan Tsai
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Jeng-Hsien Yen
- Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan. .,Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan. .,Lipid Science and Aging Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan. .,Institute of Biomedical Science, National Sun Yat-sen University, Kaohsiung, Taiwan.
| |
Collapse
|
13
|
Gorelik G, Sawalha AH, Patel D, Johnson K, Richardson B. T cell PKCδ kinase inactivation induces lupus-like autoimmunity in mice. Clin Immunol 2015; 158:193-203. [PMID: 25829232 DOI: 10.1016/j.clim.2015.03.017] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Revised: 03/05/2015] [Accepted: 03/06/2015] [Indexed: 12/12/2022]
Abstract
Genetic and environmental factors contribute to the onset and progression of lupus. CD4+ T cells from patients with active lupus show a decreased ERK signaling pathway, which causes changes in gene expression. The defect points to its upstream regulator, PKCδ, which exhibits a deficient activity due to oxidative stress. Our aim was to investigate the effect of a defective PKCδ in the development of lupus. We generated a double transgenic C57BL6 × SJL mouse that expresses a doxycycline-induced dominant negative PKCδ (dnPKCδ) in T cells. The transgenic mice displayed decreased T cell ERK signaling, decreased DNMT1 expression and overexpression of methylation sensitive genes involved in the exaggerated immune response in the pathogenesis of lupus. The mice developed anti-dsDNA autoantibodies and glomerulonephritis with IgG deposition. The study indicates common pathogenic mechanisms with human lupus, suggesting that environmentally-mediated T cell PKCδ inactivation plays a causative role in lupus.
Collapse
Affiliation(s)
- Gabriela Gorelik
- Department of Medicine, University of Michigan, Ann Arbor, MI, USA.
| | - Amr H Sawalha
- Department of Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Dipak Patel
- Department of Medicine, University of Michigan, Ann Arbor, MI, USA
| | - Kent Johnson
- Department of Pathology, University of Michigan, Ann Arbor, MI, USA
| | - Bruce Richardson
- Department of Medicine, University of Michigan, Ann Arbor, MI, USA; Ann Arbor VA Medical Center, Ann Arbor, MI, USA
| |
Collapse
|
14
|
Wang ZL, Luo XF, Li MT, Xu D, Zhou S, Chen HZ, Gao N, Chen Z, Zhang LL, Zeng XF. Resveratrol possesses protective effects in a pristane-induced lupus mouse model. PLoS One 2014; 9:e114792. [PMID: 25501752 PMCID: PMC4263676 DOI: 10.1371/journal.pone.0114792] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2013] [Accepted: 11/13/2014] [Indexed: 01/08/2023] Open
Abstract
Background Systemic lupus erythematosus (SLE) is a multisystemic autoimmune disease characterized by the production of autoantibodies. To date, no therapy has been found to satisfactorily treat SLE. SIRT1 deficiency results in the development of an autoimmune syndrome in mice, including a high titer of anti-nuclear antibody in serum, immunoglobulin deposition in the kidney, and immune complex glomerulonephritis. Resveratrol is an activator of SIRT1 and possesses anti-inflammation and immune-regulatory properties. Objective To evaluate the preventative effects of resveratrol on a pristane-induced lupus animal model and assess its putative immune modulation effects. Methods BALB/c mice received a single intraperitoneal injection of 0.5 ml of pristane on day 1 and then various doses of resveratrol were given to the mice daily starting on day 2 and continuing for seven months. The autoantibodies in serum and supernatants were measured. Single cells isolated from spleen, isolated CD4+ T cells, and CD19+ B cells were cultured with or without resveratrol in vitro and assessed by flow cytometry. Results Resveratrol attenuated proteinuria, immunoglobuin depositon in kidney, and glomerulonephritis as well as IgG1 and IgG2a in serum in pristane-induced lupus mice. Resveratrol also suppressed CD69 and CD71 expression on CD4+ T cells as well as CD4+ T cell proliferation, induced CD4+ T cell apoptosis, and decreased CD4 IFNγ+ Th1 cells and the ratio of Th1/Th2 cells in vitro. In vitro antibody production and proliferation of B cells were also inhibited. Conclusion Resveratrol possesses protective effects in pristane-induced lupus mice and may represent a novel approach for the management of SLE.
Collapse
Affiliation(s)
- Zhuo-Long Wang
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Xiao-Fang Luo
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Meng-Tao Li
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Dong Xu
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Shuang Zhou
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Hou-Zao Chen
- National Laboratory of Medical Molecular Biology, Institute of Basic Medical Science, Peking Union Medical College and Chinese Academy of Medical Sciences, Beijing, China
| | - Na Gao
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Zhen Chen
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Ling-Ling Zhang
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Xiao-Feng Zeng
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College and Chinese Academy of Medical Sciences, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
- * E-mail:
| |
Collapse
|
15
|
Qiu LJ, Xu K, Liang Y, Cen H, Zhang M, Wen PF, Ni J, Xu WD, Leng RX, Pan HF, Ye DQ. Decreased SOCS1 mRNA expression levels in peripheral blood mononuclear cells from patients with systemic lupus erythematosus in a Chinese population. Clin Exp Med 2014; 15:261-7. [PMID: 25330931 DOI: 10.1007/s10238-014-0309-2] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2014] [Accepted: 08/25/2014] [Indexed: 12/11/2022]
Abstract
The aim of this study was to investigate the mRNA expression levels of suppressor of cytokine signaling 1 (SOCS1) in patients with systemic lupus erythematosus (SLE) compared with healthy controls. The associations of systemic lupus erythematosus disease activity index scores and clinical features of SLE with the expression levels of SOCS1 mRNA were also evaluated. Real-time quantitative reverse transcription-polymerase chain reaction was applied to detect the mRNA expression levels of SOCS1 in peripheral blood mononuclear cells from 34 patients with SLE and 34 healthy controls. The mRNA expression level of SOCS1 was significantly decreased in SLE patients in comparison with healthy controls (Z = -4.207, P < 0.001). Lower SOCS1 mRNA expression was detected in active SLE patients when compared with inactive ones (Z = -2.428, P = 0.015). There was no significant difference found for the SOCS1 mRNA levels between SLE patients with nephritis and those without (Z = -0.642, P = 0.521). The presence of photosensitivity, proteinuria, positive antinuclear antibody, and C4 decline were associated with SOCS1 mRNA levels in SLE patients (all P < 0.05). Furthermore, the SOCS1 mRNA expression was negatively correlated with disease activity (r s = -0.372, P = 0.030). Our results suggest that the dysregulation of SOCS1 might be associated with the pathogenesis of SLE.
Collapse
Affiliation(s)
- Li-Juan Qiu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
16
|
Epigenetics in the treatment of systemic lupus erythematosus: potential clinical application. Clin Immunol 2014; 155:79-90. [PMID: 25218424 DOI: 10.1016/j.clim.2014.09.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2014] [Revised: 09/01/2014] [Accepted: 09/02/2014] [Indexed: 10/24/2022]
Abstract
The current treatments of systemic lupus erythematosus (SLE) have been based on the use of immunosuppressive drugs which are linked to serious side effects. The more effective therapeutic approaches with minimal or no side effects for SLE patients are hard to develop, mainly due to the complexity of the disease. The discovery of pharmacoepigenetics provides a new way to solve this problem. Epigenetic modifications can influence drug efficacy by altering gene expression via changing chromatin structure. Although still in early development, epigenetic studies in SLE are expected to reveal novel therapeutic targets and disease biomarkers in autoimmunity. For example, miRNAs, which have been identified to govern many genes including drug targets, are altered in disease development and after drug administration. This review aims to present an overview of current epigenetic mechanisms involved in the pathogenesis of SLE, and discuss their potential roles in clinical and pharmacological applications.
Collapse
|
17
|
Devaraju P, Witte T, Schmidt RE, Gulati R, Negi VS. Immunoglobulin-like transcripts 6 (ILT6) polymorphism influences the anti-Ro60/52 autoantibody status in south Indian SLE patients. Lupus 2014; 23:1149-55. [DOI: 10.1177/0961203314538107] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
Introduction Systemic lupus erythematosus (SLE) is a multisystem autoimmune disorder with complex etiology. Loss of immune tolerance against self-antigens results in activation of the immune system to produce autoantibodies, which in turn contribute to the clinical manifestations of the disease. Immune cells harbor a plethora of regulatory receptors. Immunoglobulin-like transcripts (ILTs) exhibit both immune activation and inhibitory properties. Genetic defects in genes encoding these receptors may predispose to development of autoimmune diseases secondary to loss of their function. The aim of our study was to analyze the presence or absence of the 6.7 kb segment in the ILT6 gene and its association with susceptibility to SLE and its different manifestations. Method A total of 188 SLE patients and 192 age-, sex similar-, ethnicity-matched controls were recruited. They were genotyped to test the presence or absence of the 6.7 kb segment of the ILT6 gene by polymerase chain reaction. Results The mutant allele lacking the 6.7 kb gene segment had an equal frequency in patients as well as controls (20% and 18%, respectively). The mutant allele was not associated with SLE or its clinical manifestations. However, the mutant allele was associated with the presence of anti-Ro60 ( p = 0.0005, OR 3.5, 95% CI 1.8–7.1) and anti-Ro52 ( p = 0.0027, OR 2.99, 95% CI 1.5–6.06) autoantibodies. Conclusion ILT6 deletion polymorphism does not appear to be a lupus susceptibility gene in South Indian Tamils, but may behave as a genetic modifier of autoantibody phenotype by influencing the production of anti-Ro60 and anti-Ro52 autoantibodies and thus indirectly contribute to autoimmune responses in SLE.
Collapse
Affiliation(s)
| | - T Witte
- Zentrum Innere Medizin, Klinik fur Immunologie und Rheumatologie, Medizinische Hochschule Hannover (MHH), Germany
| | - RE Schmidt
- Zentrum Innere Medizin, Klinik fur Immunologie und Rheumatologie, Medizinische Hochschule Hannover (MHH), Germany
| | - R Gulati
- Genetic Services Unit, Department of Pediatrics, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry, India
| | - VS Negi
- Department of Clinical Immunology
| |
Collapse
|
18
|
Devaraju P, Gulati R, Singh BK, Mithun CB, Negi VS. The CTLA4 +49 A/G (rs231775) polymorphism influences susceptibility to SLE in South Indian Tamils. ACTA ACUST UNITED AC 2014; 83:418-21. [PMID: 24758310 DOI: 10.1111/tan.12363] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2013] [Revised: 03/22/2014] [Accepted: 04/01/2014] [Indexed: 11/28/2022]
Abstract
Systemic lupus erythematosus (SLE) is a prototype autoimmune disease with complex etiology. Loss of immune tolerance and synthesis of autoantibodies against nuclear antigens contributes to the disease. Genetic aberrations disrupting the functions of immune regulatory receptors may facilitate the development of autoimmune diseases. Cytotoxic T-lymphocyte antigen 4 (CTLA4) is an inhibitory receptor for T cells and this study was carried out to analyze the influence of CTLA4 +49A/G (rs231775) polymorphism on susceptibility to SLE in ethnic Tamils. Three hundred SLE patients and 460 age and sex similar, ethnicity-matched controls were screened for the +49 A/G polymorphism by real time polymerase chain reaction (PCR). The wild allele (A) frequency in controls and cases was 63% and 47%, respectively. The presence of heterozygous (AG) and homozygous mutant (GG) genotype was associated with a significant risk to develop SLE (P = 0.0001, OR-2.29, 95% confidence interval (CI), 1.6-3.3) and (P = 0.0001, OR-4.3, 95% CI, 2.8-6.99). The frequency of mutant allele (G) in patients was also significantly associated with SLE (P = 0.0001, OR-1.9, 95% CI, 1.5-2.4). However, this polymorphism did not influence the clinical or serological phenotypes in our study. Therefore the CTLA4 +49 A/G polymorphism is a potential genetic risk factor for lupus susceptibility in South Indian Tamils, but does not appear to influence either the clinical or serological phenotype.
Collapse
Affiliation(s)
- P Devaraju
- Department of Clinical Immunology, Jawaharlal Institute of Postgraduate Medical Education and Research (JIPMER), Pondicherry, 605 006, India
| | | | | | | | | |
Collapse
|
19
|
Ahmed HH, Taha FM, Darweesh HES, Morsi HMA. Association between TNF promoter -308 G>A and LTA 252 A>G polymorphisms and systemic lupus erythematosus. Mol Biol Rep 2014; 41:2029-36. [PMID: 24420856 DOI: 10.1007/s11033-014-3051-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2013] [Accepted: 01/04/2014] [Indexed: 11/28/2022]
Abstract
Tumor necrosis factor (TNF) and lymphotoxin alpha (LTA) are pivotal cytokines in the pathogenesis of systemic lupus erythematosus (SLE). To investigate the possible association of the polymorphism of the TNF promoter gene -308 and that of the LTA gene 252 with susceptibility to SLE and with phenotypic disease features in Egyptian patients. A case control study involving 100 SLE patients and 100 unrelated healthy controls. Polymerase chain reaction and restriction fragment length polymorphism methods were applied to detect genetic polymorphism. We found that TNF-308 genotype AA was significantly increase by 26 % in SLE patients compared to 10 % in the control group (p = 0.003; OR 3.16; CI 1.43-6.98) and the frequency of the A allele of the TNF promoter -308 was significantly higher in the SLE patients (42 %) than in the control subjects (24 %) (p < 0.001; OR 2.29; 95 % CI 1.49-3.52). Genotype LTA 252 GG showed a significant increase by 22 % in SLE patients compared to 6 % in the control group (p = 0.001; OR 4.42; 95 % CI 1.71-11.44), and the frequency of the G allele of the LTA was significantly higher in the SLE patients (38 %) than in the control subjects (21 %) (p < 0.001; OR 2.31; 95 % CI 1.48-3.6). Genotype (AA+GA) of TNF was significantly associated with clinical manifestations as malar rash, arthritis, oral ulcers, serositis and systemic lupus erythematosus disease activity index. Genotype (GG+GA) of LTA was significantly associated with arthritis. These results suggest that TNF and LTA genetic polymorphisms contribute to SLE susceptibility in the Egyptian population and are associated with disease characteristics. TNF-308 and LTA+252 polymorphic markers may be used for early diagnosis of SLE and early prediction of clinical manifestations, like arthritis.
Collapse
Affiliation(s)
- Hanan Hosni Ahmed
- Medical Biochemistry and Molecular Biology, Faculty of Medicine, Cairo University, Giza, Egypt
| | | | | | | |
Collapse
|
20
|
|
21
|
Su G, Luan Z, Wu F, Wang X, Tang X, Wu N, Wang K. Long-term follow-up of autologous stem cell transplantation for severe paediatric systemic lupus erythematosus. Clin Rheumatol 2013; 32:1727-34. [PMID: 23925552 DOI: 10.1007/s10067-013-2324-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2013] [Revised: 05/26/2013] [Accepted: 06/26/2013] [Indexed: 10/26/2022]
Abstract
This study attempts to evaluate the outcome of autologous peripheral blood hematopoietic stem cell transplantation (auto-PBHSCT) in patients with severe paediatric systemic lupus erythematosus (SLE). Five patients (n = 2 females, n = 3 males) with severe or refractory paediatric SLE received autologous peripheral blood CD34+ cell transplants between July 2005 and February 2009. The patients ranged in age from 6 to 14 years, and the course of disease extended over a period from 5 to 90 months. All of the patients received conventional therapy for 3 to 87 months. After their discharge from the hospital, the patients continued to maintain their regular follow-up visits and basic quality of life. The patients exhibited decreased immune function after the auto-PBHSCT. The CD4+ and CD19+ cells were significantly reduced. Viremia occurred in four patients 2 months after the transplantation. All of the patients went into clinical remission in 3-6 months. The severity of encephalopathy, nephritis and organ damage declined in varying degrees. The disease recurred in patient 2 at 9 months and in patient 4 at 12 months after the transplantation. Because the disease was relatively mild, we were able to administer small doses of glucocorticoids that were sufficient to control the course of the disease. Macrophage activation syndrome occurred in patient 3 at 18 months after the transplantation. At the end of the follow-up period, three of the five patients were completely off their medications. Another two patients sustained small doses of glucocorticoids. The developmental levels of these patients were comparable to those of normal children at the end of the follow-up. The quality of life improved significantly. The auto-PBHSCT is effective for severe and refractory paediatric SLE. The incidence of lethal infection and other adverse reactions is low. Long-term remission can be achieved. A milder form of the disease may have recurred after the transplantation.
Collapse
Affiliation(s)
- Gaixiu Su
- Division of Paediatric Rheumatology, Capital Institute of Pediatrics, No. 2 Yabao Road, Chaoyang District, Beijing, 100020, China
| | | | | | | | | | | | | |
Collapse
|
22
|
Abstract
Childhood systemic lupus erythematosus (SLE) is known to have a worse prognosis than adult-onset disease, and monitoring and treatment of the disease are still a challenge. Thus, there is an urgent need for highly reliable, non-invasive biomarkers for early detection of relapses, to avoid long-term complications and to optimize the management of children with LN. Recent studies of pediatric patients have yielded novel specific biomarkers for SLE diagnosis which can be used for monitoring disease activity and response to treatment. The most promising biomarkers in juvenile-onset SLE include cell-bound complement activation products, some genomic profiles, and urinary proteins such as neutrophil gelatinase-associated lipocalin, monocyte chemoattractant protein-1, and alpha-1-acid glycoprotein. None of these might be suitable for use as a single SLE-biomarker. More likely a combination of novel biomarkers with traditionally used data, including autoantibodies and complement, might help to enhance sensitivity and specificity for early diagnosis, disease monitoring, and prediction of relapses.cp.
Collapse
Affiliation(s)
- Elisabeth Binder
- Department of Pediatrics, Medical University Innsbruck, Innsbruck, Austria.
| | | |
Collapse
|
23
|
Zhou M, Li LH, Peng H, Li R, Feng CC, Xu WD, Leng RX, Pan HF, Ye DQ. Decreased ITGAM and FcγRIIIA mRNA expression levels in peripheral blood mononuclear cells from patients with systemic lupus erythematosus. Clin Exp Med 2013; 14:269-74. [PMID: 23708937 DOI: 10.1007/s10238-013-0240-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Accepted: 05/10/2013] [Indexed: 11/29/2022]
Abstract
Systemic lupus erythematosus (SLE) is a multisystem autoimmune disease with complex genetic predisposing factors involved. ITGAM and FCγRIIIA are two kinds of immune complex clearance molecules. The variants in ITGAM and FCγRIIIA genes have been confirmed to be associated with SLE. The aim of this study is to investigate the association of mRNA expression levels of ITGAM and FCγRIIIA with SLE. Real-time transcription-polymerase chain reaction analysis (RT-PCR) was used to determine the expression levels of ITGAM and FCγRIIIA mRNA in peripheral blood mononuclear cells (PBMC) from 60 patients with SLE and 60 healthy controls. Flow cytometry was used to measure the expression level of ITGAM and FcγRIIIA from 30 SLE patients and 30 healthy controls. The expression levels of ITGAM mRNA was significantly decreased in SLE patients compared with healthy controls (P = 0.007). Patients with arthritis had higher ITGAM mRNA level than those without arthritis (P = 0.029). The expression level of FCγRIIIA mRNA in SLE patients was significantly lower than that of healthy controls (P = 0.001). Decreased expression level of FCγRIIIA mRNA was also found in patients with LN compared with those without LN (P = 0.015). The level of ITGAM mRNA in patients with anti-SSB positive, anti-RNP positive, complement reduction and increased IgG was significantly reduced. No significant correlation was found between ITGAM and FcγRIIIA mRNA expression level in SLE patients (r = -0.019, P = 0.882). Expression of ITGAM protein in T cells, neutrophil and monocyte of SLE patients was significantly lower than healthy controls (P < 0.05). For FcγRIIIA protein expression in monocyte and NK cells, there were no significant difference between SLE patients and healthy controls (P > 0.05). The altered expression levels of ITGAM and FCγRIIIA mRNA in SLE patients and their correlations with clinical data suggest that ITGAM and FCγRIIIA may play a role in this disease.
Collapse
Affiliation(s)
- Mo Zhou
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, 230032, Anhui, People's Republic of China
| | | | | | | | | | | | | | | | | |
Collapse
|
24
|
Zhu X, Li F, Yang B, Liang J, Qin H, Xu J. Effects of ultraviolet B exposure on DNA methylation in patients with systemic lupus erythematosus. Exp Ther Med 2013; 5:1219-1225. [PMID: 23596493 PMCID: PMC3628076 DOI: 10.3892/etm.2013.960] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2012] [Accepted: 01/14/2013] [Indexed: 11/11/2022] Open
Abstract
The aim of this study was to investigate the effects of ultraviolet B (UVB) exposure on DNA methylation in patients with systemic lupus erythematosus (SLE) and its significance in the pathogenesis of SLE. T cells from 35 SLE patients and 21 healthy individuals were cultured and irradiated with UVB. The global DNA methylation profiles of the T cells obtained from the patients and controls following irradiation with UVB were assessed using specific monoclonal antibodies for 5-methylcytosine and analyzed quantitatively through flow cytometry. Real-time reverse transcription-polymerase chain reaction (RT-PCR) was used to analyze the levels of DNA methyltransferase 1 (DNMT1) and methyl CpG binding domain protein 2 (MBD2) in T cells from the patients and controls following UVB irradiation. Significant global DNA hypomethylation was observed in the SLE patients compared with the controls (P<0.01). The SLE patients also had significantly lower levels of DNMT1 mRNA expression (P<0.01) and significantly higher levels of MBD2 mRNA compared with the controls (P<0.01). DNA methylation was decreased following UVB irradiation at two different dosages and the DNA methylation levels of the patients with active SLE were more sensitive to UVB. The level of DNMT1 mRNA was decreased following UVB irradiation at the higher dosage in the patients with active SLE, but no significant difference was observed in MBD2 mRNA expression. UVB exposure is able to inhibit DNA methylation and DNMT1 mRNA expression, which is subsequently involved in the epigenetic mechanism of SLE. The process by which DNA hypomethylation occurs in patients with SLE is complicated and the multiple factors that are involved in DNA methylation and demethylation events require further study.
Collapse
Affiliation(s)
- Xiaohua Zhu
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai 200040, P.R. China
| | | | | | | | | | | |
Collapse
|
25
|
Alonso-Perez E, Suarez-Gestal M, Calaza M, Ordi-Ros J, Balada E, Bijl M, Papasteriades C, Carreira P, Skopouli FN, Witte T, Endreffy E, Marchini M, Migliaresi S, Sebastiani GD, Santos MJ, Suarez A, Blanco FJ, Barizzone N, Pullmann R, Ruzickova S, Lauwerys BR, Gomez-Reino JJ, Gonzalez A. Further evidence of subphenotype association with systemic lupus erythematosus susceptibility loci: a European cases only study. PLoS One 2012; 7:e45356. [PMID: 23049788 PMCID: PMC3458859 DOI: 10.1371/journal.pone.0045356] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2012] [Accepted: 08/14/2012] [Indexed: 11/24/2022] Open
Abstract
Introduction Systemic Lupus Erythematosus (SLE) shows a spectrum of clinical manifestations that complicate its diagnosis, treatment and research. This variability is likely related with environmental exposures and genetic factors among which known SLE susceptibility loci are prime candidates. The first published analyses seem to indicate that this is the case for some of them, but results are still inconclusive and we aimed to further explore this question. Methods European SLE patients, 1444, recruited at 17 centres from 10 countries were analyzed. Genotypes for 26 SLE associated SNPs were compared between patients with and without each of 11 clinical features: ten of the American College of Rheumatology (ACR) classification criteria (except ANAs) and age of disease onset. These analyses were adjusted for centre of recruitment, top ancestry informative markers, gender and time of follow-up. Overlap of samples with previous studies was excluded for assessing replication. Results There were three new associations: the SNPs in XKR6 and in FAM167A-BLK were associated with lupus nephritis (OR = 0.76 and 1.30, Pcorr = 0.007 and 0.03, respectively) and the SNP of MECP2, which is in chromosome X, with earlier age of disease onset in men. The previously reported association of STAT4 with early age of disease onset was replicated. Some other results were suggestive of the presence of additional associations. Together, the association signals provided support to some previous findings and to the characterization of lupus nephritis, autoantibodies and age of disease onset as the clinical features more associated with SLE loci. Conclusion Some of the SLE loci shape the disease phenotype in addition to increase susceptibility to SLE. This influence is more prominent for some clinical features than for others. However, results are only partially consistent between studies and subphenotype specific GWAS are needed to unravel their genetic component.
Collapse
Affiliation(s)
- Elisa Alonso-Perez
- Laboratorio de Investigacion 10 and Rheumatology Unit, Instituto de Investigacion Sanitaria - Hospital Clinico Universitario de Santiago, Santiago de Compostela, Spain
| | - Marian Suarez-Gestal
- Laboratorio de Investigacion 10 and Rheumatology Unit, Instituto de Investigacion Sanitaria - Hospital Clinico Universitario de Santiago, Santiago de Compostela, Spain
| | - Manuel Calaza
- Laboratorio de Investigacion 10 and Rheumatology Unit, Instituto de Investigacion Sanitaria - Hospital Clinico Universitario de Santiago, Santiago de Compostela, Spain
| | - Josep Ordi-Ros
- Internal Medicine, Research Laboratory in Autoimmune Diseases, Hospital Vall d’Hebron, Barcelona, Spain
| | - Eva Balada
- Internal Medicine, Research Laboratory in Autoimmune Diseases, Hospital Vall d’Hebron, Barcelona, Spain
| | - Marc Bijl
- Department of Internal Medicine and Rheumatology, Martini Hospital, Groningen, The Netherlands
| | - Chryssa Papasteriades
- Department of Histocompatibility and Immunology, Evangelismos Hospital, Athens, Greece
| | | | - Fotini N. Skopouli
- Pathophysiology Department, Athens University Medical School, Athens, Greece
| | - Torsten Witte
- Division of Clinical Immunology, Department of Internal Medicine of the Hannover Medical School, Hannover, Germany
| | - Emöke Endreffy
- Paediatrics Department, Albert Szent-Györgyi Medical Centre, University of Szeged, Szeged, Hungary
| | - Maurizio Marchini
- Referral Center for Systemic Autoimmune Diseases, Fondazione IRCCS Ca’ Granda Ospedale Maggiore Policlinico and University of Milan, Milan, Italy
| | | | | | - Maria Jose Santos
- Rheumatology Department, Hospital Garcia de Orta and Rheumatology Research Unit, Instituto Medicina Molecular, Lisboa, Portugal
| | - Ana Suarez
- Department of Functional Biology, Hospital Universitario Central de Asturias, Universidad de Oviedo, Oviedo, Spain
| | | | - Nadia Barizzone
- Department of Medical Sciences and IRCAD, Eastern Piedmont University, Novara, Italy
| | - Rudolf Pullmann
- Institute of Clinical Biochemistry, Martin Faculty Hospital, Jessenius Medical Faculty, Martin, Slovakia
| | - Sarka Ruzickova
- Institute of Biotechnology, Academy of Sciences of the Czech Republic, Prague, Czech Republic
| | - Bernard R. Lauwerys
- Cliniques Universitaires Saint-Luc and Université Catholique de Louvain, Brussels, Belgium
| | - Juan J. Gomez-Reino
- Laboratorio de Investigacion 10 and Rheumatology Unit, Instituto de Investigacion Sanitaria - Hospital Clinico Universitario de Santiago, Santiago de Compostela, Spain
- Department of Medicine, University of Santiago de Compostela, Santiago de Compostela, Spain
| | - Antonio Gonzalez
- Laboratorio de Investigacion 10 and Rheumatology Unit, Instituto de Investigacion Sanitaria - Hospital Clinico Universitario de Santiago, Santiago de Compostela, Spain
- * E-mail:
| | | |
Collapse
|
26
|
Angelo HD, da Silva HA, Asano NMJ, Muniz MTC, de Mascena Diniz Maia M, de Souza PRE. Tumor necrosis factor alpha promoter polymorphism -308 G/A in Brazilian patients with systemic lupus erythematosus. Hum Immunol 2012; 73:1166-70. [PMID: 22884981 DOI: 10.1016/j.humimm.2012.07.336] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2012] [Revised: 07/13/2012] [Accepted: 07/30/2012] [Indexed: 10/28/2022]
Abstract
Systemic lupus erythematosus (SLE) is an autoimmune disease characterized by the production of antibodies to components of the cell nucleus in association with a diverse array of clinical manifestations. Polymorphisms in cytokines genes may play an important role in the development and clinical manifestation. Due to this, there is a great interest in the identification of biomarkers that which could quantify the susceptibility and disease activity. A case-control study of 98 lupus cases and 76 lupus-free adults controls, was performed to analyze whether or not the polymorphism of the TNF-α gene promoter at positions -308 G/A would alter the risk for SLE and clinical manifestations. Genotyping was carried out by polymerase chain reaction, PCR products were digested by NcoI restriction enzyme and fractionated after on 2% Agarose gel and visualized posteriorly staining by ethidium bromide. There were significant differences in the distribution of the TNF-α gene polymorphism between the SLE and control groups. Individual carriers of the variant allele A had a 3.29 (95% CI: 1.7738-6.1325)-fold increased risk for SLE. Moreover, association was observed between SLE patients and serositis (P=0.0228). This study presents a preliminary evidence of association between TNF-α polymorphism and SLE susceptibility in the Northeast population from Brazil.
Collapse
|
27
|
Sex differences and genomics in autoimmune diseases. J Autoimmun 2012; 38:J254-65. [DOI: 10.1016/j.jaut.2011.12.001] [Citation(s) in RCA: 83] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2011] [Accepted: 12/02/2011] [Indexed: 12/23/2022]
|
28
|
Biomarkers for systemic lupus erythematosus. Transl Res 2012; 159:326-42. [PMID: 22424435 DOI: 10.1016/j.trsl.2012.01.021] [Citation(s) in RCA: 65] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2011] [Revised: 01/13/2012] [Accepted: 01/19/2012] [Indexed: 12/20/2022]
Abstract
The urgent need for lupus biomarkers was demonstrated in September 2011 during a Workshop sponsored by the Food and Drug Administration: Potential Biomarkers Predictive of Disease Flare. After 2 days of discussion and more than 2 dozen presentations from thought leaders in both industry and academia, it became apparent that highly sought biomarkers to predict lupus flare have not yet been identified. Even short of the elusive biomarker of flare, few biomarkers for systemic lupus erythematosus (SLE) diagnosis, monitoring, and stratification have been validated and employed for making clinical decisions. This lack of reliable, specific biomarkers for SLE hampers proper clinical management of patients with SLE and impedes development of new lupus therapeutics. As such, the intensity of investigation to identify lupus biomarkers is climbing a steep trajectory, lending cautious optimism that a validated panel of biomarkers for lupus diagnosis, monitoring, stratification, and prediction of flare may soon be in hand.
Collapse
|
29
|
Robinson M, Sheets Cook S, Currie LM. Systemic lupus erythematosus: A genetic review for advanced practice nurses. ACTA ACUST UNITED AC 2011; 23:629-37. [DOI: 10.1111/j.1745-7599.2011.00675.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
|
30
|
Mohd-Yusuf Y, Phipps ME, Chow SK, Yeap SS. HLA-A*11 and novel associations in Malays and Chinese with systemic lupus erythematosus. Immunol Lett 2011; 139:68-72. [PMID: 21658414 DOI: 10.1016/j.imlet.2011.05.001] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/01/2011] [Revised: 04/26/2011] [Accepted: 05/02/2011] [Indexed: 10/18/2022]
Abstract
We investigated the association of the HLA genes in Malaysian patients with systemic lupus erythematosus (SLE) and their associations with the clinical manifestations in 160 SLE patients (99 Chinese and 61 Malays) and 107 healthy control individuals (58 Chinese and 49 Malays) were studied. Sequence specific primer amplification (PCR-SSP) phototyping techniques were used to analyse 25 HLA-A allele groups, 31 HLA-DR allele groups and 9 HLA-DQ allele groups. Appreciable increases in allele frequencies of HLA-A*11, DRB1*0701, DRB1*1601-1606, DRB5*01-02 and DQB1*05, and decrease in HLA-DRB1*1101-1121, 1411, DRB1*1201-3, DRB1*1301-22, DRB3*0101, 0201, 0202, 0203, 0301 and DQB1*0301, 1304 in SLE patients compared with healthy control individuals. However, after Bonferroni correction (p(c)<0.05) only HLA-A*1101, 1102, DRB5*01-02, DQB1*05, DRB1*1201-3, DRB3*0101, 0201, 0202, 0203, 0301 and DQB1*0301, 0304 remained significant. Allele frequencies of DRB1*0701 and DRB4*0101101, 0102, 0103, DQB1*05, DRB1*1301-22, DRB3*0101, 0201, 0202, 0203, 0301 and DQB1*0301, 0304 were significantly increased in Malay SLE patients compared with healthy control individuals. In contrast, Chinese SLE patients had increased allele frequencies of DRB1*1601-1606, DQB1*05, DRB1*1201-3, DRB3*0101, 0201, 0202, 0203, 0301, DRB3*0101, 0201, 0202, 0203, 0301 and DQB1*0301, 0304 compared with healthy control individuals. HLA-A*6801-02 and DRB1*1601-1606 frequencies appeared elevated in a subset of patients with serositis and DRB1* 0401-1122 frequency was elevated in those displaying neurologic disorder. However, unequivocal evidence of these associations would require investigation of substantially larger cohorts. On the whole, our findings suggest that HLA allele associations with SLE are race specific in Malays and Chinese.
Collapse
Affiliation(s)
- Yusmin Mohd-Yusuf
- Department of Molecular Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | | | | | | |
Collapse
|
31
|
TNF promoter -308 G>A and LTA 252 A>G polymorphisms in Portuguese patients with systemic lupus erythematosus. Rheumatol Int 2011; 32:2239-44. [DOI: 10.1007/s00296-011-1950-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2010] [Accepted: 04/13/2011] [Indexed: 01/09/2023]
|
32
|
|
33
|
Sestak AL, Kelly JA, Harley JB. Genetics of lupus. Rheumatology (Oxford) 2011. [DOI: 10.1016/b978-0-323-06551-1.00124-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
|
34
|
Liu CC, Ou TT, Wu CC, Li RN, Lin YC, Lin CH, Tsai WC, Liu HW, Yen JH. Global DNA methylation, DNMT1, and MBD2 in patients with systemic lupus erythematosus. Lupus 2010; 20:131-6. [DOI: 10.1177/0961203310381517] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
To investigate the associations of DNA methylation levels and mRNA expressions of DNA cytosine-5-methyltransferase 1 (DNMT1) and methyl CpG-binding domain 2 (MBD2) with systemic lupus erythematosus (SLE), 108 patients with SLE and 97 healthy controls were enrolled in this study. DNA and total RNA were extracted from the peripheral blood mononuclear cells of the SLE patients and the controls. The global methylation levels of DNA were measured in 63 patients with SLE and 68 healthy controls by the ELISA method. DNMT1 and MBD2 mRNA were also detected in 108 SLE patients and 97 controls using the quantitative real-time polymerase chain reaction method. The global methylation level of DNA was significantly decreased in the SLE patients in comparison with that in the controls ( p < 0.001, 95% CI = 0.1573–0.5052). The patients with SLE have higher expressions of DNMT1 and MBD2 mRNA than the controls ( p < 0.001, 95% CI = −0.0049 – −0.0019 and p = 0.001, 95% CI = −0.0119 – −0.0029, respectively). We also found that there were no significant differences in the methylation level and the expression of DNMT1 and MBD2 mRNA between the active and the inactive SLE patients. A positive correlation was also found between DNMT1 and MBD2 mRNA expressions in the SLE patients ( p < 0.001). This study demonstrated that the patients with SLE had a significantly lower level of DNA methylation than the controls. The expression of both DNMT1 and MBD2 mRNA was significantly increased in the SLE patients compared with the controls. This study also showed a positive correlation between DNMT1 and MBD2 mRNA levels in the patients with SLE.
Collapse
Affiliation(s)
- CC Liu
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Taiwan
| | - TT Ou
- >Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Taiwan
| | - CC Wu
- >Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Taiwan
| | - RN Li
- Department of Biomedical Science and Environmental Biology, College of Life Science, Kaohsiung Medical University, Taiwan
| | - YC Lin
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Taiwan
| | - CH Lin
- >Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Taiwan
| | - WC Tsai
- >Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Taiwan
| | - HW Liu
- >Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Taiwan
| | - JH Yen
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Taiwan
- >Division of Rheumatology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Taiwan
- Center of Excellence for Environmental Medicine, Kaohsiung Medical University, Taiwan
| |
Collapse
|
35
|
Accelerated atherosclerosis in systemic lupus erythematosus: role of proinflammatory cytokines and therapeutic approaches. J Biomed Biotechnol 2010; 2010. [PMID: 20936125 PMCID: PMC2948929 DOI: 10.1155/2010/607084] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2010] [Revised: 06/21/2010] [Accepted: 07/26/2010] [Indexed: 12/02/2022] Open
Abstract
Systemic lupus erythematosus (SLE), a chronic multisystem autoimmune disease with a broad range of clinical manifestations, is associated with accelerated atherosclerosis (AT) and increased risk of cardiovascular complications. Relevant factors directly influencing the development of AT comprise immune complex generation, complement activation, and changes in the production and activity of a complex network of cytokines, including type I and II interferons, B lymphocyte stimulator (BLyS), TNFα, IL-6, IL-17 and migration macrophage inhibitor (MIF). Autoantibodies, also responsible for cytokine expression and activation, play a supplementary key role in the development of AT. Genomic and proteomic studies have contributed to the discovery of genes and proteins involved in AT, including some that may be suitable to be used as biomarkers. All that data has allowed the development of new drugs, most of them evaluated in clinical trials: inhibitors of IFN and TNFα, B cell directed therapies, synthetic oligodeoxynucleotides, intravenous immunoglobulin, or statins. The focus of the present paper is to summarize recent evidence showing the role of cytokines in the development of AT in SLE and the rationale, and safety concerns, in the use of combined therapy to prevent AT and cardiovascular disease.
Collapse
|
36
|
Evsyukova I, Somarelli JA, Gregory SG, Garcia-Blanco MA. Alternative splicing in multiple sclerosis and other autoimmune diseases. RNA Biol 2010; 7:462-73. [PMID: 20639696 DOI: 10.4161/rna.7.4.12301] [Citation(s) in RCA: 57] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
Abstract
Alternative splicing is a general mechanism for regulating gene expression that affects the RNA products of more than 90% of human genes. Not surprisingly, alternative splicing is observed among gene products of metazoan immune systems, which have evolved to efficiently recognize pathogens and discriminate between "self" and "non-self", and thus need to be both diverse and flexible. In this review we focus on the specific interface between alternative splicing and autoimmune diseases, which result from a malfunctioning of the immune system and are characterized by the inappropriate reaction to self-antigens. Despite the widespread recognition of alternative splicing as one of the major regulators of gene expression, the connections between alternative splicing and autoimmunity have not been apparent. We summarize recent findings connecting splicing and autoimmune disease, and attempt to find common patterns of splicing regulation that may advance our understanding of autoimmune diseases and open new avenues for therapy.
Collapse
Affiliation(s)
- Irina Evsyukova
- Department of Biochemistry, Duke University Medical Center, Durham, NC USA
| | | | | | | |
Collapse
|
37
|
You Y, Zhao W, Chen S, Tan W, Dan Y, Hao F, Deng G. Association of TBX21 gene haplotypes in a Chinese population with systemic lupus erythematosus. Scand J Rheumatol 2010; 39:254-8. [PMID: 20429676 DOI: 10.3109/03009740903347983] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE T-cell-specific T-box transcription factor (T-bet) is a member of the T-box family of transcription factors regulating type 1 T-helper (Th1) cell development and is thought to be linked with several autoimmune diseases including systemic lupus erythematosus (SLE). The aim of this study was to evaluate whether T-bet gene (TBX21) polymorphisms or its haplotypes are associated with SLE in a Chinese population. METHODS The study included 248 cases with SLE and 261 gender- and age-matched healthy controls. The polymorphisms T-1993C (rs4794067) and T-1514C (rs17250932) in the TBX21 promoter were identified by a polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) assay. RESULTS The frequency of both the -1993T and the -1514T allele were significantly higher in SLE patients than in controls. By haplotype analysis, there was significantly decreased frequency of the haplotype at positions -1993C/-1514C in the case group compared with the control group (p = 0.0002). Multifactorial logistic regression analysis showed that individuals with CC/CC haplotype homozygotes had a decreased susceptibility to SLE [p = 0.0004, odds ratio (OR) 0.316, 95% confidence interval (CI) 0.167-0.599]. CONCLUSION Our results suggest that the -1993C/-1514C haplotype may be a protective factor for genetic susceptibility to SLE in the Chinese population.
Collapse
Affiliation(s)
- Y You
- Department of Dermatology, Southwest Hospital, Third Military Medical University, Chongqing, PR China
| | | | | | | | | | | | | |
Collapse
|
38
|
Aggarwal R, Namjou B, Li S, D'Souza A, Tsao BP, Bruner BF, James JA, Scofield RH. Male-only systemic lupus. J Rheumatol 2010; 37:1480-7. [PMID: 20472921 DOI: 10.3899/jrheum.090726] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
OBJECTIVE Systemic lupus erythematosus (SLE) is more common among women than men, a ratio of about 10 to 1. We undertook this study to describe familial male SLE within a large familial SLE cohort. METHODS SLE families (2 or more patients) were identified from the Lupus Multiplex Registry and Repository. Genomic DNA and blood samples were obtained using standard methods. Autoantibodies were determined by multiple methods. Medical records were abstracted for SLE clinical data. Fluorescent in situ hybridization (FISH) was performed with X and Y centromere-specific probes, and a probe specific for the Toll-like receptor 7 gene on the X chromosome. RESULTS Among 523 SLE families, we found 5 families in which all the SLE patients were male. FISH found no yaa gene equivalent in these families. SLE-unaffected primary female relatives from the 5 families with only-male SLE patients had a statistically increased rate of positive antinuclear antibodies compared to SLE-unaffected female relatives in other families. White men with SLE were 5 times more likely to have an offspring with SLE than White women with SLE, but there was no difference in this likelihood among Black men. CONCLUSION Because women in the all-male families had positive antinuclear antibodies, and men are more likely to have children with SLE, these data suggest genetic susceptibility factors that act only in men.
Collapse
Affiliation(s)
- Rachna Aggarwal
- Department of Medicine, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA.
| | | | | | | | | | | | | | | |
Collapse
|
39
|
Lu LJ, Wallace DJ, Navarra SV, Weisman MH. Lupus Registries: Evolution and Challenges. Semin Arthritis Rheum 2010; 39:224-45. [DOI: 10.1016/j.semarthrit.2008.08.009] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2008] [Revised: 08/07/2008] [Accepted: 08/25/2008] [Indexed: 11/27/2022]
|
40
|
Chan HC, Ke LY, Chang LL, Liu CC, Hung YH, Lin CH, Li RN, Tsai WC, Liu HW, Yen JH. Suppressor of cytokine signaling 1 gene expression and polymorphisms in systemic lupus erythematosus. Lupus 2010; 19:696-702. [PMID: 20064913 DOI: 10.1177/0961203309357437] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
With the aim of investigating the role of suppressor of cytokine signaling 1 (SOCS1) in the pathogenesis of systemic lupus erythematosus, 107 patients with systemic lupus erythematosus, 101 healthy controls, and 151 patients with ankylosing spondylitis were enrolled in this study. SOCS1 mRNA level was measured by the method of quantitative real-time polymerase chain reaction. SOCS1 polymorphisms were detected by the polymerase chain reaction/restriction fragment length polymorphisms method. Systemic lupus erythematosus disease activity was evaluated with the SLEDAI. This study showed that the SOCS1 mRNA expression was significantly higher in the patients with systemic lupus erythematosus than in the healthy controls (p = 0.0014). Patients with active systemic lupus erythematosus had a higher expression of SOCS1 mRNA than the patients with inactive systemic lupus erythematosus (p = 0.035). There was no significant difference in the frequencies of the SOCS1-1478CA/del polymorphisms among the patients with systemic lupus erythematosus, healthy controls, and patients with ankylosing spondylitis. The genotype frequency of the SOCS1-1478 polymorphisms in the dominant model (CA/del+del/del versus CA/CA) was significantly decreased in the patients with thrombocytopenia compared with those without thrombocytopenia (p(c) = 0.035). Moreover, the allele frequency of SOCS1-1478del was also significantly lower in the patients with thrombocytopenia than in those without thrombocytopenia (p( c) = 0.02). In conclusion, this study demonstrated that the expression of SOCS1 mRNA was significantly increased in patients with systemic lupus erythematosus. Moreover, SOCS1 mRNA levels in patients with active systemic lupus erythematosus were significantly higher than those in the inactive patients. We also found that the systemic lupus erythematosus patients with thrombocytopenia have a lower frequency of SOCS1-1478del compared with patients without thrombocytopenia.
Collapse
Affiliation(s)
- H C Chan
- Graduate Institute of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | | | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Grant SF, Petri M, Bradfield JP, Kim CE, Santa E, Annaiah K, Frackelton EC, Glessner JT, Otieno FG, Shaner JL, Smith RM, Eckert AW, Chiavacci RM, Imielinski M, Sullivan KE, Hakonarson H. Association of the BANK 1 R61H variant with systemic lupus erythematosus in Americans of European and African ancestry. APPLICATION OF CLINICAL GENETICS 2009; 2:1-5. [PMID: 23776345 PMCID: PMC3681036 DOI: 10.2147/tacg.s4089] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
Abstract
Recently an association was demonstrated between the single nucleotide polymorphism (SNP), rs10516487, within the B-cell gene BANK1 and systemic lupus erythematosus (SLE) as a consequence of a genome wide association study of this disease in European and Argentinean populations. In a bid for replication, we examined the effects of the R61H non-synonymous variant with respect to SLE in our genotyped American cohorts of European and African ancestry. Utilizing data from our ongoing genome-wide association study in our cohort of 178 Caucasian SLE cases and 1808 Caucasian population-based controls plus 148 African American (AA) SLE cases and 1894 AA population-based controls we investigated the association of the previously described non-synonymous SNP at the BANK1 locus with the disease in the two ethnicities separately. Using a Fisher’s exact test, the minor allele frequency (MAF) of rs10516487 in the Caucasian cases was 22.6% while it was 31.2% in Caucasian controls, yielding a protective odds ratio (OR) of 0.64 (95% CI 0.49-0.85; one-sided p = 7.07 × 10−4). Furthermore, the MAF of rs10516487 in the AA cases was 18.7% while it was 23.3% in AA controls, yielding a protective OR of 0.75 (95% CI 0.55–1.034; one-sided p = 0.039). The OR of the BANK1 variant in our study cohorts is highly comparable with that reported previously in a South American/European SLE case-control cohort (OR = 0.72). As such, R61H in the BANK1 gene confers a similar magnitude of SLE protection, not only in European Americans, but also in African Americans.
Collapse
Affiliation(s)
- Struan Fa Grant
- Center for Applied Genomics, Abramson Research Center, The Children's Hospital of Philadelphia, Philadelphia, PA, USA ; Department of Pediatrics and Division of Human Genetics, The Children's Hospital of Philadelphia, Philadelphia, PA, USA ; Department of Pediatrics, University of Pennsylvania School of Medicine, Philadelphia, PA, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
42
|
Scofield RH, Oates J. The place of William Osler in the description of systemic lupus erythematosus. Am J Med Sci 2009; 338:409-12. [PMID: 19826244 PMCID: PMC2783313 DOI: 10.1097/maj.0b013e3181acbd71] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Affiliation(s)
- R Hal Scofield
- Arthritis and Immunology Program, Oklahoma Medical Research Foundation, Oklahoma City, Oklahoma 73104, USA.
| | | |
Collapse
|
43
|
Abstract
Few biomarkers for systemic lupus erythematosus (SLE) have been validated and employed for making clinical decisions. The lack of reliable, specific biomarkers for SLE hampers the proper clinical management of patients with SLE and impedes the development of new lupus therapeutics. This void has led to renewed enthusiasm for identifying biomarkers that precisely and specifically reflect the pathophysiological and clinical changes of SLE. Several laboratory markers have shown early promise as biomarkers for lupus susceptibility, diagnosis and monitoring. These include polymorphisms and copy-number variations of complement C4 and Fcgamma receptor genes (disease susceptibility), cell-bound complement C4d (diagnosis and/or disease activity), CD27(high) plasma cells (disease activity), 'interferon signature' (disease activity) and anti-C1q and anti-NMDA (disease activity and organ involvement). Although these and other promising candidate biomarkers have been identified, they still need to be validated through rigorous, large-scale multicentre studies. This article briefly reviews the historical aspects of lupus biomarkers and summarises current efforts to advance the field.
Collapse
Affiliation(s)
- Chau-Ching Liu
- Lupus Center of Excellence, University of Pittsburgh Schools of Health Sciences, 3500 Terrace Street, Pittsburgh, PA 15261, USA.
| | | |
Collapse
|
44
|
Webb R, Merrill JT, Kelly JA, Sestak A, Kaufman KM, Langefeld CD, Ziegler J, Kimberly RP, Edberg JC, Ramsey-Goldman R, Petri M, Reveille JD, Alarcón GS, Vilá LM, Alarcón-Riquelme ME, James JA, Gilkeson GS, Jacob CO, Moser KL, Gaffney PM, Vyse TJ, Nath SK, Lipsky P, Harley JB, Sawalha AH. A polymorphism within IL21R confers risk for systemic lupus erythematosus. ACTA ACUST UNITED AC 2009; 60:2402-7. [PMID: 19644854 DOI: 10.1002/art.24658] [Citation(s) in RCA: 100] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
OBJECTIVE Interleukin-21 (IL-21) is a member of the type I cytokine superfamily that has a variety of effects on the immune system, including B cell activation, plasma cell differentiation, and immunoglobulin production. The expression of IL-21 receptor (IL-21R) is reduced in the B cells of patients with systemic lupus erythematosus (SLE), while serum IL-21 levels are increased both in lupus patients and in some murine lupus models. We recently reported that polymorphisms within the IL21 gene are associated with increased susceptibility to SLE. The aim of this study was to examine the genetic association between single-nucleotide polymorphisms (SNPs) within IL21R and SLE. METHODS We genotyped 17 SNPs in the IL21R gene in 2 large cohorts of lupus patients (a European-derived cohort and a Hispanic cohort) and in ethnically matched healthy controls. RESULTS We identified and confirmed the association between rs3093301 within the IL21R gene and SLE in the 2 cohorts (meta-analysis odds ratio 1.16 [95% confidence interval 1.08-1.25], P=1.0x10(-4)). CONCLUSION Our findings indicate that IL21R is a novel susceptibility gene for SLE.
Collapse
Affiliation(s)
- Ryan Webb
- Oklahoma Medical Research Foundation, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
45
|
Abstract
Low-affinity Fcgamma receptors (FcgammaRs) mediate the effects of immunoglobulin G (IgG) antibodies on leukocytes, including recruitment to inflammatory lesions, phagocytosis, antibody-dependent cellular cytotoxicity, release of inflammatory mediators and regulation of B cell activation. These functions are an important part of the mammalian response to infection, but if deployed inappropriately can cause autoimmune disease. Although most FcgammaRs are activatory, there is also an inhibitory FcgammaR that, when bound to IgG immune complexes, is able to downregulate the effects of both the activatory FcgammaRs and the B cell receptor. This review discusses the role of the low-affinity FcgammaRs in a balanced immune response and how perturbations in FcgammaR function result in susceptibility to infection or autoimmunity.
Collapse
|
46
|
Cuchacovich R, Gedalia A. Pathophysiology and clinical spectrum of infections in systemic lupus erythematosus. Rheum Dis Clin North Am 2009; 35:75-93. [PMID: 19480998 DOI: 10.1016/j.rdc.2009.03.003] [Citation(s) in RCA: 46] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Systemic lupus erythematosus (SLE) is an inflammatory and multisystemic autoimmune disorder characterized by an uncontrolled autoreactivity of B and T lymphocytes leading to the production of autoantibodies against self-directed antigens and tissue destruction. Environmental factors, such as infections, which are an important cause of morbidity and mortality, are potential triggers of the disease. This article discusses bacterial, viral, and opportunistic microorganism infections in SLE, and the role of immunosuppressive therapy and immunodeficiencies in the disease.
Collapse
Affiliation(s)
- Raquel Cuchacovich
- Section of Rheumatology, Department of Internal Medicine, Louisiana State University Health Sciences Center, 1542 Tulane Avenue, New Orleans, LA 70112, USA.
| | | |
Collapse
|
47
|
Bowman C, Delrieu O. Immunogenetics of drug-induced skin blistering disorders. Part I: Perspective. Pharmacogenomics 2009; 10:601-21. [PMID: 19374517 DOI: 10.2217/pgs.09.11] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The overall immunopathogenesis relevant to a large series of disorders caused by a drug or its associated hyperimmune condition is discussed based upon the examination of the genetics of severe drug-induced bullous skin problems (sporadic idiosyncratic adverse events, including Stevens-Johnson syndrome and toxic epidermal necrolysis). An overarching pharmacogenetic schema is proposed. Immune cognition and early-effector processes are focused upon and a challenging synthesis around systems evolution is explained by a variety of projective analogies. Etiology, human leukocyte antigen-B, immune stability, dysregulation, pharmacomimicry, viruses and an aggressive ethnically differentiated 'karmic' response are discussed.
Collapse
Affiliation(s)
- Clive Bowman
- School of Biological Sciences, The University of Reading, Whiteknights, Reading, RG6 6AH, UK.
| | | |
Collapse
|
48
|
Wilbe M, Jokinen P, Hermanrud C, Kennedy LJ, Strandberg E, Hansson-Hamlin H, Lohi H, Andersson G. MHC class II polymorphism is associated with a canine SLE-related disease complex. Immunogenetics 2009; 61:557-64. [PMID: 19636550 DOI: 10.1007/s00251-009-0387-6] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2009] [Accepted: 07/01/2009] [Indexed: 11/26/2022]
Abstract
Nova Scotia duck tolling retrievers are predisposed to a SLE-related disease complex including immune-mediated rheumatic disease (IMRD) and steroid-responsive meningitis-arteritis (SRMA). IMRD involves symptoms that resemble those seen in systemic autoimmune rheumatic diseases, such as systemic lupus erythematosus, SLE, or SLE-related diseases, in humans. This disease complex involves persistent lameness, stiffness, mainly after resting, and palpable pain from several joints of extremities. The majority of affected dogs display antinuclear autoantibody (ANA)-reactivity. SRMA is manifested in young dogs with high fever and neck stiffness and can be treated with corticosteroids. We have investigated the possible role of MHC class II as a genetic risk factor in IMRD and SRMA etiology. We performed sequence-based typing of the DLA-DRB1, -DQA1, and -DQB1 class II loci in a total of 176 dogs including 51 IMRD (33 ANA-positive), 49 SRMA cases, and 78 healthy controls (two dogs were both IMRD- and SRMA-affected). Homozygosity for the risk haplotype DRB1*00601/DQA1*005011/DQB1*02001 increased the risk for IMRD (OR = 4.9; ANA-positive IMRD: OR = 7.2) compared with all other genotypes. There was a general heterozygote advantage, homozygotes had OR = 4.4 (ANA-positive IMRD: OR = 8.9) compared with all heterozygotes. The risk haplotype contains the five amino acid epitope RARAA, known as the shared epitope for rheumatoid arthritis. No association was observed for SRMA. We conclude that DLA class II is a highly significant genetic risk factor for ANA-positive IMRD. The results indicate narrow diversity of DLA II haplotypes and identify an IMRD-related risk haplotype, which becomes highly significant in homozygous dogs.
Collapse
Affiliation(s)
- Maria Wilbe
- Department of Animal Breeding and Genetics, BMC, Swedish University of Agricultural Sciences, Box 597, SE-751 24, Uppsala, Sweden.
| | | | | | | | | | | | | | | |
Collapse
|
49
|
Kim I, Kim YJ, Kim K, Kang C, Choi CB, Sung YK, Lee HS, Bae SC. Genetic studies of systemic lupus erythematosus in Asia: where are we now? Genes Immun 2009; 10:421-32. [DOI: 10.1038/gene.2009.24] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
|
50
|
The genetics and epigenetics of autoimmune diseases. J Autoimmun 2009; 33:3-11. [PMID: 19349147 DOI: 10.1016/j.jaut.2009.03.007] [Citation(s) in RCA: 207] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2009] [Accepted: 03/03/2009] [Indexed: 12/14/2022]
Abstract
Self tolerance loss is fundamental to autoimmunity. While understanding of immune regulation is expanding rapidly, the mechanisms causing loss of tolerance in most autoimmune diseases remain elusive. Autoimmunity is believed to develop when genetically predisposed individuals encounter environmental agents that trigger the disease. Recent advances in the genetic and environmental contributions to autoimmunity suggest that interactions between genetic elements and epigenetic changes caused by environmental agents may be responsible for inducing autoimmune disease. Genetic loci predisposing to autoimmunity are being identified through multi-center consortiums, and the number of validated genes is growing rapidly. Recent reports also indicate that the environment can contribute to autoimmunity by modifying gene expression through epigenetic mechanisms. This article will review current understanding of the genetics and epigenetics of lupus, rheumatoid arthritis, multiple sclerosis and type 1 diabetes, using systemic lupus erythematosus as the primary example. Other autoimmune diseases may have a similar foundation.
Collapse
|