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Comprehensive assessment of the association between genes on JAK-STAT pathway (IFIH1, TYK2, IL-10) and systemic lupus erythematosus: a meta-analysis. Arch Dermatol Res 2018; 310:711-728. [DOI: 10.1007/s00403-018-1858-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2018] [Revised: 08/19/2018] [Accepted: 08/26/2018] [Indexed: 12/12/2022]
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Sharma U, Singhal P, Bandil K, Kumar A, Bose S, Ahuja P, Kohli M, Dewan AK, Tayal J, Banerjee BD, Prasheri A, Mehrotra R, Sharma V, Bharadwaj M. Genetic variations of IL-10: Identification of novel variations and evaluation of the impact of the SNPs/haplotype in the promoter region with the progression of Oral Squamous Cell Carcinoma in Indian population. Cytokine 2018; 103:99-108. [PMID: 28982581 DOI: 10.1016/j.cyto.2017.09.016] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2016] [Revised: 09/11/2017] [Accepted: 09/13/2017] [Indexed: 12/25/2022]
Abstract
The correlation of interleukin 10 (IL-10) with the outbreak and progression of cancer has been well established as it contributes to tumor immune evasion. Convincing number of evidences has been accumulated to reflect the critical correlation between IL-10 polymorphism and tumorogenesis. Several polymorphic sites at promoter regions have been reported to be associated with cancer susceptibility. The purpose of this study was to examine the effect of modulated genotypes in the promoter region of IL-10 gene with life-style habits in oral squamous cell carcinoma (OSCC) in the Indian population. A total of 300 subjects (100 OSCC, 50 precancer and 150 healthy controls) were recruited in this study. The IL-10 promoter region was amplified in 14 overlapping fragments by PCR and further screened through the high throughput technique of denaturing high-performance liquid chromatography (dHPLC) followed by sequencing. We identified three novel variations at positions (-924, -1045 & -1066); we also found some known SNPs (-592C/A, -657G/A, -851G/A, -819C/T, -1082A/G). The identified novel variations were submitted to the NCBI Gene Bank (accession numbers KT153594, KT291742 and KT291743). We also noticed a significant association of polymorphisms (-592C/A, -819C/T and -1082A/G) individually as well as in combination (haplotypes) along with lifestyle habits for the risk of oral carcinoma (p<0.0001). We have reported three novel SNPs in the Indian population for the first time, and these SNPs may be associated with OSCC. Besides, we showed the first evidence of IL-10 haplotypes, i.e., CCG and CTG, may act as a biomarker for early detection of oral pre-cancerous/cancerous lesions or treatment management of oral carcinoma.
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Affiliation(s)
- Upma Sharma
- Division of Molecular Genetics & Biochemistry, National Institute of Cancer Prevention & Research (NICPR-ICMR), I-7, Sector-39, Noida, India; Department of Bioscience and Biotechnology, Banasthali University, Rajasthan, India
| | - Pallavi Singhal
- Division of Molecular Genetics & Biochemistry, National Institute of Cancer Prevention & Research (NICPR-ICMR), I-7, Sector-39, Noida, India
| | - Kapil Bandil
- Division of Molecular Genetics & Biochemistry, National Institute of Cancer Prevention & Research (NICPR-ICMR), I-7, Sector-39, Noida, India
| | - Anoop Kumar
- Division of Molecular Genetics & Biochemistry, National Institute of Cancer Prevention & Research (NICPR-ICMR), I-7, Sector-39, Noida, India; National Institute of Biologicals, Noida, Uttar Pradesh, India
| | | | - Puneet Ahuja
- Department of Oral Pathology, I.T.S. Dental College & Research, Greater Noida, India
| | - Molushree Kohli
- Department of Oral Pathology, I.T.S. Dental College & Research, Greater Noida, India
| | - Ajay Kumar Dewan
- Department of Surgical Oncology, Rajiv Gandhi Cancer Institute & Research Centre, New Delhi, India
| | - Juhi Tayal
- Department of Research, Rajiv Gandhi Cancer Institute & Research Centre, New Delhi, India
| | - Basu Dev Banerjee
- Department of Biochemistry, University College of Medical Sciences, University of Delhi, Dilshad Garden, Delhi, India
| | - Aditya Prasheri
- Division of Molecular Immunology, National Institute of Cancer Prevention & Research (NICPR-ICMR), I-7, Sector-39, Noida, India
| | - Ravi Mehrotra
- Division of Cytopathology, National Institute of Cancer Prevention & Research (NICPR-ICMR), I-7, Sector-39, Noida, India
| | - Veena Sharma
- Department of Bioscience and Biotechnology, Banasthali University, Rajasthan, India
| | - Mausumi Bharadwaj
- Division of Molecular Genetics & Biochemistry, National Institute of Cancer Prevention & Research (NICPR-ICMR), I-7, Sector-39, Noida, India.
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Emerah AA, Mohamed KF, Elbadawy NE, Rashad MH. Effects of interleukin-10 gene polymorphism on clinical diversity and activity of systemic lupus erythematosus. EGYPTIAN RHEUMATOLOGY AND REHABILITATION 2015. [DOI: 10.4103/1110-161x.157855] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Rezaei A, Ziaee V, Sharabian FT, Harsini S, Mahmoudi M, Soltani S, Sadr M, Moradinejad MH, Aghighi Y, Rezaei N. Lack of association between interleukin-10, transforming growth factor-beta gene polymorphisms and juvenile-onset systemic lupus erythematosus. Clin Rheumatol 2015; 34:1059-64. [DOI: 10.1007/s10067-015-2877-2] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Revised: 01/02/2015] [Accepted: 01/16/2015] [Indexed: 12/12/2022]
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Peng H, Wang W, Zhou M, Li R, Pan HF, Ye DQ. Role of interleukin-10 and interleukin-10 receptor in systemic lupus erythematosus. Clin Rheumatol 2013; 32:1255-66. [PMID: 23708831 DOI: 10.1007/s10067-013-2294-3] [Citation(s) in RCA: 74] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2013] [Accepted: 05/13/2013] [Indexed: 01/22/2023]
Abstract
Systemic lupus erythematosus (SLE) is a prototypic autoimmune disease characterized by excessive production of a variety of autoantibodies, accumulation of immune complexes, and multiple organ systems involvement. Interleukin-10 (IL-10) has an important role in the growth, survival, differentiation, and function of B cells. Abnormally increased IL-10 synthesis seems contributing to the spontaneous hyperactivity of the B cell compartment, so that it can directly result in autoantibody production by committed plasma cells, circulating immune complexes formation, and eventually in tissue and organ damage, suggesting it might associate with the development of SLE. A better understanding of the regulation of IL-10 and its receptors (IL-10R) can likely provide more valuable clues to the pathogenic mechanisms underlying specific forms of SLE, so as to pave the way toward more effective therapeutics.
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Affiliation(s)
- Hui Peng
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, 81 Meishan Road, Hefei, Anhui, 230032, People's Republic of China
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Wang B, Zhu JM, Fan YG, Xu WD, Cen H, Pan HF, Ye DQ. Association of the −1082G/A polymorphism in the interleukin-10 gene with systemic lupus erythematosus: A meta-analysis. Gene 2013; 519:209-16. [DOI: 10.1016/j.gene.2013.01.026] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2012] [Revised: 12/17/2012] [Accepted: 01/16/2013] [Indexed: 12/13/2022]
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Associations between interleukin-10 polymorphisms and susceptibility to systemic lupus erythematosus: a meta-analysis. Hum Immunol 2012; 74:364-70. [PMID: 23220432 DOI: 10.1016/j.humimm.2012.11.020] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2012] [Revised: 11/12/2012] [Accepted: 11/27/2012] [Indexed: 12/18/2022]
Abstract
OBJECTIVE The study determined whether interleukin-10 (IL-10) polymorphisms confer susceptibility to systemic lupus erythematosus (SLE). METHODS A meta-analysis was conducted on the associations between the IL-10-1082 G/A, -819 C/T, -592 C/A polymorphisms and the haplotype of the IL-10-1082 G/A, -819 C/T, -592 C/A polymorphisms and SLE. RESULTS A total of 19 studies involving 2828 SLE patients and 4008 controls were considered in the meta-analysis. Meta-analysis of the IL-10-1082 G/A polymorphism revealed an association between SLE and the IL-10-1082 G allele (odds ratio [OR] = 1.158, 95% confidence interval [CI] = 1.051-1.276, p = 0.003). Stratification by ethnicity indicated an association between the IL-10-1082 G allele and SLE in Europeans (OR=1.160, 95% CI = 1.039-1.296, p = 0.008). Meta-analysis stratified by ethnicity produced an association between the IL-10-819 C allele and SLE in Asians (OR = 1.308, 95% CI = 1.030-1.619, p = 0.027). Meta-analysis of the homozygous GCC/GCC haplotype failed to show a significant association with SLE in Europeans (OR = 1.223, 95% CI=0.981-1.526, p = 0.074). However, meta-analysis of the GCC haplotype revealed a significant association with RA in all study subjects (OR = 1.402, 95% CI = 1.001-1.964, p = 0.049). Stratification by ethnicity indicated an association between the GCC haplotype and SLE in Europeans (OR = 1.656, 95% CI = 1.087-2.523, p = 0.019), but not in Asians (OR = 1.100, 95% CI = 0.703-1.721, p = 0.677). Meta-analysis of homozygous ATA/ATA haplotype failed to show a significant association with SLE in overall and European groups. However, meta-analysis of the ATA haplotype revealed a significant association with SLE in all study subjects (OR = 1.516, 95% CI = 1.039-2.213, p = 0.031) and Asians (OR = 2.580, 95% CI = 2.086-3.192, p < 1 × 10(-9)), but not in Europeans (OR = 1.233, 95% CI = 0.816-1.862, p = 0.320). CONCLUSIONS This meta-analysis suggests that the IL-10 polymorphisms confer susceptibility to SLE in Europeans and in Asians.
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Zhou M, Ding L, Peng H, Wang B, Huang F, Xu WD, Li JH, Ye XR, Pan HF, Ye DQ. Association of the interleukin-10 gene polymorphism (-1082A/G) with systemic lupus erythematosus: a meta-analysis. Lupus 2012. [PMID: 23192326 DOI: 10.1177/0961203312468623] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
OBJECTIVE The interleukin-10 (IL-10) gene polymorphism (-1082A/G) has been shown to be associated with systemic lupus erythematosus (SLE), but findings are not consistent across studies. The aim of our meta-analysis was to assess the association between the -1082A/G polymorphism in the IL-10 gene and SLE. METHODS We searched all publications on the association between the IL-10 (-1082A/G) polymorphism and SLE in PubMed, Elsevier Science Direct, Chinese Biomedical Literature Database (CBM), Chinese National Knowledge Infrastructure (CNKI) and Wanfang (Chinese). Meta-analysis was conducted using software Stata version 10.1. Meta-odds ratios (ORs) and 95% confidence intervals (CIs) based on fixed-/random-effects models depended on Cochran's Q-statistic and I(2) values. RESULTS A total of 17 studies with 2396 cases and 3653 controls were included in this meta-analysis. Meta-analysis was performed for genotypes GG versus AA, GG + AG versus AA, GG versus AG + AA, and G allele versus A allele. Significant differences were found in genotype distribution between SLE and normal controls in whole-population GG versus AA (OR = 1.428, 95% CI = 1.006-2.208). Similar results were detected in the dominant genetics effect of the G allele (OR = 1.202, 95% CI = 1.030-1.403). No significant association was found in allele distribution in whole-population G versus A (OR = 1.125, 95% CI = 0.998-1.269). In subgroup analysis by ethnicity, significant association was found when GG + AG versus AA was performed in a European population (OR = 1.240, 95% CI = 1.022-1.503) and GG versus AG + AA was performed in an Asian population (OR = 3.596, 95% CI = 1.389-9.311). Significant association was found between genotype distribution in Asians (OR = 4.491, 95% CI = 1.552-13.000). Publication year was detected as the source of heterogeneity. In the stratified analysis by publication year, the pooled OR was 1.049 (95% CI = 0.940-1.171; P (heterogeneity) = 0.431; I(2) ( )= 0.4%) in subgroup 1 (publication years 1999-2004). No significant association was found between the IL-10 (-1082 G) allele and SLE in subgroup 1 (Z = 0.85, p = 0.431). In subgroup 2 (publication years 2005-2011), the pooled OR was 1.327 (95% CI = 1.125-1.565; P (heterogeneity) = 0.143; I(2) ( )= 35.8%). Significant association was found between the IL-10 (-1082 G) allele and SLE (Z = 3.36, p = 0.001). CONCLUSIONS This meta-analysis demonstrates the association between the IL-10 (-1082A/G) polymorphism and SLE. However, further studies are needed for a definitive conclusion.
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Affiliation(s)
- M Zhou
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, China
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Louvain de Souza T, de Souza Campos Fernandes RC, Medina-Acosta E. HIV-1 control in battlegrounds: important host genetic variations for HIV-1 mother-to-child transmission and progression to clinical pediatric AIDS. Future Virol 2012. [DOI: 10.2217/fvl.12.49] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
HIV-1 mother-to-child transmission (MTCT) is the passing of maternal HIV-1 to the offspring during pregnancy, labor and delivery, and/or breastfeeding. HIV-1 MTCT and the evolution to pediatric AIDS are multifactorial, dynamic and variable phenotypic conditions. Both genetic and nongenetic variables can influence susceptibility to HIV-1 MTCT or the rate of progression to clinical pediatric AIDS. In this review, we summarize the current state of knowledge about the roles of genetic variations seen in host immune response genes, and those that have been independently associated, mostly through population genetics of candidate genes, with interindividual susceptibility to HIV-1 MTCT, and progression to pediatric AIDS. We examine common and rare host genetic variations at coding and noncoding polymorphisms, whether functional or not, in agonists and antagonists of the immune response, which have been implicated in HIV-1 control in battlegrounds of cell entry, replication and evolution to AIDS. Further, we point to over 380 single-nucleotide polymorphisms, mostly within the HLA super region, recently identified in unbiased genome-wide association studies of HIV replication and evolution in adults, still unexplored in the context of HIV-1 MTCT, and which are likely to also influence susceptibility to pediatric HIV-1/AIDS.
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Affiliation(s)
- Thais Louvain de Souza
- Molecular Identification & Diagnosis Unit, Universidade Estadual do Norte Fluminense Darcy Ribeiro, Brazil
| | - Regina Célia de Souza Campos Fernandes
- Municipal Program for the Surveillance of Sexually Transmitted Diseases & Acquired Immunodeficiency Syndrome of Campos dos Goytacazes, Brazil
- Faculty of Medicine of Campos, Campos dos Goytacazes, Brazil
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Dourmishev L, Hristova M, Vinkov A, Kamenarska Z, Kaneva R, Baleva M, Mitev V. IL-10 Single Nucleotide Polymorphisms and Lupus-Nephritis. BIOTECHNOL BIOTEC EQ 2012. [DOI: 10.5504/bbeq.2012.0036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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11
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IL-10 and TNFalpha genotypes in SLE. J Biomed Biotechnol 2010; 2010:838390. [PMID: 20625422 PMCID: PMC2896901 DOI: 10.1155/2010/838390] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2010] [Accepted: 04/20/2010] [Indexed: 12/20/2022] Open
Abstract
The production of two regulators of the inflammatory response, interleukin 10 (IL-10) and tumor necrosis factor
α (TNFα), has been found to be deeply deregulated in SLE patients, suggesting that these cytokines may be involved in the pathogenesis of the disease. Genetic polymorphisms at the promoter regions of IL-10 and TNFα genes have been associated with different constitutive and induced cytokine production. Given that individual steady-state levels of these molecules may deviate an initial immune response towards different forms of lymphocyte activation, functional genetic variants in their promoters could influence the development of SLE. The present review summarizes the information previously reported about the involvement of IL-10 and TNFα genetic variants on SLE appearance, clinical phenotype, and outcome. We show that, in spite of the heterogeneity of the populations studied, the existing knowledge points towards a relevant role of IL-10 and TNFα genotypes in SLE.
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Warren JE, Nelson LM, Stoddard GJ, Esplin MS, Varner MW, Silver RM. Polymorphisms in the promoter region of the interleukin-10 (IL-10) gene in women with cervical insufficiency. Am J Obstet Gynecol 2009; 201:372.e1-5. [PMID: 19591971 DOI: 10.1016/j.ajog.2009.05.022] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2008] [Revised: 02/12/2009] [Accepted: 05/14/2009] [Indexed: 11/26/2022]
Abstract
OBJECTIVE Our objective was to determine whether polymorphisms in the promoter region of the interleukin-10 gene are more common in women with cervical insufficiency compared with controls. STUDY DESIGN We conducted a case-control study. Histories and blood were obtained from 121 cases and 157 controls. DNA was extracted and purified by using Puregene kits. Samples were analyzed for the interleukin-10 -1082 G/A polymorphism and interleukin-10.G microsatellite in the interleukin-10 gene promoter region. RESULTS The -1082 G/A polymorphism in the promoter region of the interleukin-10 gene occurred with similar frequency in cases and controls. The interleukin-10.G microsatellite contained 10 alleles (G6-G16). The G13 allele was present more frequently in cases (24.1%) compared with controls (14.6%) (P = .05). CONCLUSION Interleukin-10 is known to down-regulate inflammation. The G13 allele in the interleukin-10.G microsatellite occurred more frequently in women with cervical insufficiency compared with controls, suggesting that alterations in inflammatory processes may play a role in cervical insufficiency.
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Abstract
Preterm birth is the most significant problem encountered in obstetrics in the developed world. Genetic factors are thought to play a role in a proportion of preterm births, and candidate genes have been studied in several areas relevant to parturition. Abnormal cervical function, a clinical spectrum, including cervical insufficiency (CI), is a contributing factor to the overall problem of preterm birth. There are many risk factors and etiologies for CI. However, it is becoming clear that, at least in part, a genetic predisposition to CI plays a role in the condition. Specifically, genes related to connective tissue metabolism and inflammation have been shown to be associated with CI.
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Affiliation(s)
- Jennifer E Warren
- Department of Obstetrics and Gynecology, University of Utah, Salt Lake City, UT 84132, USA
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Hewagama A, Richardson B. The genetics and epigenetics of autoimmune diseases. J Autoimmun 2009; 33:3-11. [PMID: 19349147 PMCID: PMC2819418 DOI: 10.1016/j.jaut.2009.03.007] [Citation(s) in RCA: 216] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [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.
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Affiliation(s)
- Anura Hewagama
- Department of Medicine, University of Michigan, 1500 E. Medical Center Drive, Ann Arbor, MI 48109, USA
| | - Bruce Richardson
- Department of Medicine, University of Michigan, 1500 E. Medical Center Drive, Ann Arbor, MI 48109, USA
- Department of Medicine, Ann Arbor Veterans Affairs, Medical Center, 2215 Fuller Road, Ann Arbor, MI 48105, USA
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Willeke P, Gaubitz M, Schotte H, Becker H, Domschke W, Schlüter B. The role of interleukin-10 promoter polymorphisms in primary Sjogren's syndrome. Scand J Rheumatol 2008; 37:293-9. [PMID: 18612930 DOI: 10.1080/03009740801910353] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
OBJECTIVE To determine the impact of a broad spectrum of different polymorphisms within the interleukin-10 (IL-10) promoter gene on disease susceptibility to primary Sjogren's syndrome (pSS), clinical manifestations, and autoantibody production. METHODS We genotyped 111 unrelated German Caucasian patients with pSS and 145 healthy controls for the single nucleotide polymorphisms (SNPs) at positions -2849, -2776, -2769, -2763, -1349, -1082, -851, -819, -657, and -592 and for the microsatellites IL10.R and IL10.G. Allele and haplotype distributions were compared between patients and controls and between subgroups of patients with different clinical and laboratory findings. RESULTS We found no significant differences in the allele or haplotype frequencies between pSS patients and healthy controls. After Bonferroni correction we found a significant association of the ACC haplotype (at the -1082, -819, and -592 loci) with immunoglobulin (Ig)A antibodies to anti-alpha-fodrin. CONCLUSION Overall we found no associations of IL-10 promoter polymorphisms with the susceptibility to pSS in our cohort. The finding that the production of IgA anti-alpha-fodrin antibodies is associated with polymorphisms within the IL-10 promoter region suggests a genetic contribution to the generation of these antibodies.
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Affiliation(s)
- P Willeke
- Department of Medicine B, Muenster University Hospital, Muenster, Germany.
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A sequence variation in the MOG gene is involved in multiple sclerosis susceptibility in Italy. Genes Immun 2007; 9:7-15. [DOI: 10.1038/sj.gene.6364437] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Hirankarn N, Wongpiyabovorn J, Hanvivatvong O, Netsawang J, Akkasilpa S, Wongchinsri J, Hanvivadhanakul P, Korkit W, Avihingsanon Y. The synergistic effect of FC gamma receptor IIa and interleukin-10 genes on the risk to develop systemic lupus erythematosus in Thai population. ACTA ACUST UNITED AC 2007; 68:399-406. [PMID: 17092253 DOI: 10.1111/j.1399-0039.2006.00681.x] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Several linkage analyses have consistently shown that systemic lupus erythematosus (SLE) susceptible genes are located on chromosome 1q21-44. In this study, two major candidate genes, interleukin-10 (IL-10) and Fc gamma receptor IIa (FcgammaRIIa), within these regions were investigated in Thai SLE patients. The genotyping of three single-nucleotide polymorphisms (promoter area: -1082, -819 and -592) within IL-10 gene and one polymorphism (change amino acid at position 131) within FcgammaRIIa gene was determined in 195 SLE patients and 159 ethnically matched controls. The RR/RH genotypes of FcgammaRIIa were found to be significantly increased in SLE patients compared with healthy controls [OR = 2.01, 95% confidence interval (CI) = 1.28-3.14, P= 0.001]. Interestingly, the synergistic effect between RR/RH genotypes of FcgammaRIIa and ACC/ACC haplotype of IL-10 in susceptibility to SLE was observed (OR = 7.84, 95% CI = 1.60-52.04, P= 0.002). In addition, the FcgammaRIIa, RR homozygotes was also strongly associated with anticardiolipin antibody production (OR = 6.09, 95% CI = 1.38-30.54, P= 0.006). The result demonstrated that ACC haplotype of IL-10 gene and FcgammaRIIa R131 polymorphism can be used as marker for genetic susceptibility and severity to SLE in Thai population, particularly individuals carrying both specific genotypes.
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Affiliation(s)
- N Hirankarn
- Lupus Research Unit, Chulalongkorn University, Bangkok, 10330, Thailand.
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Abstract
Over the past 40 years more than 100 genetic risk factors have been defined in systemic lupus erythematosus through a combination of case studies, linkage analyses of multiplex families, and case-control analyses of single genes. Multiple investigators have examined patient cohorts gathered from around the world, and although we doubt that all of the reported associations will be replicated, we have probably already discovered many of the genes that are important in lupus pathogenesis, including those encoding human leukocyte antigen-DR, Fcgamma receptor 3A, protein tyrosine phosphatase nonreceptor 22, cytotoxic T lymphocyte associated antigen 4, and mannose-binding lectin. In this review we will present what is known, what is disputed, and what remains to be discovered in the world of lupus genetics.
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Affiliation(s)
- Andrea L Sestak
- Oklahoma Medical Research Foundation, Arthritis and Immunology Research Program, 825 NE 13th St, Oklahoma City, Oklahoma 73104, USA.
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Chen JY, Wang CM, Lu SC, Chou YH, Luo SF. Association of apoptosis-related microsatellite polymorphisms on chromosome 1q in Taiwanese systemic lupus erythematosus patients. Clin Exp Immunol 2006; 143:281-7. [PMID: 16412052 PMCID: PMC1809582 DOI: 10.1111/j.1365-2249.2005.02984.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Apoptosis is important in the pathogenesis of systemic lupus erythematosus (SLE). Several genome-wide scan studies have suggested chromosome 1q as a genetic susceptibility locus for SLE. This study investigated the association of apoptosis-related genes on chromosome 1q, Fas ligand (FasL), interleukin (IL)-10 and poly(ADP-ribose) polymerase (PARP), promoter microsatellite multi-allelic polymorphisms with SLE susceptibility and clinical characteristics in Taiwan. This study recruited 237 SLE patients and 304 healthy controls. FasL, IL-10 and PARP promoter microsatellite polymorphisms were genotyped employing gene scan. IL-10, located on 1q31-32, emerged as a significant susceptibility gene locus in Taiwanese SLE (T4 statistic = 0.01). IL-10 CA21 allele was the most common allele of 15 identified in Taiwanese, displaying skewed distribution of susceptibility in Taiwanese SLE patients. Conversely, the IL-10 CA20 allele showed a protective effect of SLE susceptibility. Additionally, the IL-10 CA26 allele displayed a negative significant association with ascites and IL-10 CA25 allele increased the occurrence of the anti-cardiolipin IgM antibody. This study identified five alleles of FasL and nine alleles of PARP of microsatellite polymorphisms in Taiwanese patients. FasL and PARP alleles displayed no skewing distribution between Taiwanese SLE patients and controls. However, FasL GT15 and PARP CA17 allele demonstrated a high discoid rash presentation (T4 statistic 0.01 and 0.03, respectively) and PARP CA12 allele displayed a significant association with anti-cardiolipin IgM antibody production (T4 statistic 0.02). IL-10, FasL and PARP microsatellite polymorphisms exhibited significant associations with SLE susceptibility and/or clinical characteristics in Taiwanese patients. Thus, SLE is a complex and multiple genetics determined autoimmune disease. Chromosome 1q23-42 is an important genetic locus for further SLE subphenotype susceptibility study.
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Affiliation(s)
- J-Y Chen
- Department of Medicine, Division of Allergy, Immunology and Rheumatology, Chang Gung Memorial Hospital, Taiwan, Republic of China.
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20
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Interleukin 10.G microsatellite in the promoter region of the interleukin-10 gene in severe sepsis. Chin Med J (Engl) 2006. [DOI: 10.1097/00029330-200602010-00004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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21
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Nath SK, Harley JB, Lee YH. Polymorphisms of complement receptor 1 and interleukin-10 genes and systemic lupus erythematosus: a meta-analysis. Hum Genet 2005; 118:225-34. [PMID: 16133175 DOI: 10.1007/s00439-005-0044-6] [Citation(s) in RCA: 128] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2005] [Accepted: 07/20/2005] [Indexed: 11/28/2022]
Abstract
A number of studies have tested the association of the complement receptor 1 (CR1) and Interleukin-10 (IL10) polymorphisms with systemic lupus erythematosus (SLE), but reported conflicting results. The aim of the study is to explore whether the CR1 and IL10 genes are associated with SLE susceptibility. We surveyed studies on the CR1 and IL10 polymorphisms and SLE using comprehensive Medline search and review of the references. A meta-analysis was conducted in a fixed effects model or random effects model based on between-study heterogeneity. Eighteen comparisons from 13 studies were included in the CR1 meta-analysis and a total of 16 separate comparisons were used for the IL10 meta-analysis. The CR1 meta-analysis showed no significant association of the CR1 functional polymorphisms with SLE. In contrast, the S structural variant of the CR1 showed a significant association (OR=1.544, 95% CI, 1.217-1.959, P<0.001). Stratification by ethnicity indicated that the CR1 S variant was associated with SLE in Caucasians (OR=1.667, 95% CI, 1.193-2.357, P=0.003). The IL10 meta-analysis showed a significant association between SLE and the G11 allele of IL10.G (OR=1.279, 95% CI; 1.027-1.593, P=0.028) in whole populations, and IL10 promoter -1082G allele was associated with SLE in Asians (OR=1.358, 95% CI; 1.015-1.816, P=0.039). In conclusion, the CR1 meta-analysis revealed the association of the S structural variant of the CR1 with SLE and the IL10 meta-analysis showed the association of IL10.G11 allele and SLE in whole populations and the association between promoter -A1082G polymorphism and SLE in Asians.
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Affiliation(s)
- Swapan K Nath
- Arthritis and Immunology Research Program, Oklahoma Medical Research Foundation, Oklahoma City, OK, USA
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22
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Qi ZM, Wang J, Sun ZR, Ma FM, Zhang QR, Hirose S, Jiang Y. Polymorphism of the mouse gene for the interleukin 10 receptor alpha chain (Il10ra) and its association with the autoimmune phenotype. Immunogenetics 2005; 57:697-702. [PMID: 16160826 DOI: 10.1007/s00251-005-0036-7] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2005] [Accepted: 07/27/2005] [Indexed: 10/25/2022]
Abstract
Several studies suggest that interleukin (IL)-10 pathway is involved in murine lupus, while no linkage of IL-10 gene polymorphism to disease susceptibility has been reported in studies with lupus-prone mice. Since IL-10 functions through the specific IL-10 receptor alpha (IL-10RA) chain and the IL-10RA gene (Il10ra) is linked to the susceptibility loci of atopic dermatitis and Crohn's disease identified using mouse models, we supposed that IL-10RA might be involved in murine lupus. By flow cytometry analysis, we found that NZW mice, one of the parental strains of lupus-prone (NZBxNZW) F1 mice, express extremely low levels of IL-10RA compared with NZB mice, the other parental strain, and the healthy BALB/c and C57BL/6 mice. Sequence analyses of Il10ra cDNA of NZW mice showed multiple nucleotide mutations compared with that of NZB and C57BL/6 strains, some of which would result in amino acid substitutions in the IL-10RA protein. Lupus-prone MRL mice shared the same polymorphism with NZW. Analyses using (NZBxNZW) F1xNZB backcross mice showed that high serum levels of IgG antichromatin antibodies were regulated by a combinatorial effect of the NZW Il10ra allele and a heterozygous genotype for Tnfa microsatellite locus. Our data suggest that the polymorphic NZW-type Il10ra may be involved in the pathologic production of antichromatin antibodies and, if so, may contribute in part to the development of systemic lupus erythematosus as one susceptibility allele.
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MESH Headings
- Animals
- Crosses, Genetic
- DNA Primers
- Genetic Predisposition to Disease
- Lupus Erythematosus, Systemic/genetics
- Lupus Erythematosus, Systemic/immunology
- Mice
- Mice, Inbred BALB C
- Mice, Inbred C57BL
- Mice, Inbred MRL lpr
- Mice, Inbred NZB
- Phenotype
- Polymorphism, Genetic
- Protein Subunits/genetics
- Receptors, Interleukin/biosynthesis
- Receptors, Interleukin/genetics
- Receptors, Interleukin-10
- Species Specificity
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Affiliation(s)
- Zan-Mei Qi
- Central Laboratory, the First Affiliated Hospital, China Medical University, 155 Nan-Jing Bei, Shenyang, Liaoning, 110001, PR China
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23
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Sestak AL, Nath SK, Harley JB. Genetics of systemic lupus erythematosus: how far have we come? Rheum Dis Clin North Am 2005; 31:223-44, v. [PMID: 15922143 DOI: 10.1016/j.rdc.2005.01.005] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
There are two primary mechanisms for studying the genetic forces at work in systemic lupus erythematosus (SLE). Several groups have collected large numbers of pedigrees in which multiple family members have SLE for use in linkage studies. These linkage studies serve to isolate areas of the genome in which susceptibility genes lie. Other groups have taken a more direct approach of investigating genes that might contribute to disease pathogenesis in sets of lupus subjects and matched controls. These association studies are accumulating in greater numbers as the technology to determine the genotype at a given locus becomes more accessible. This article discusses the results of both types of studies.
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Affiliation(s)
- Andrea L Sestak
- Department of Arthritis and Immunology, Oklahoma Medical Research Foundation, Oklahoma City, OK 73003, USA.
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24
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Green MRJ, Kennell ASM, Larche MJ, Seifert MH, Isenberg DA, Salaman MR. Natural killer cell activity in families of patients with systemic lupus erythematosus: demonstration of a killing defect in patients. Clin Exp Immunol 2005; 141:165-73. [PMID: 15958083 PMCID: PMC1809425 DOI: 10.1111/j.1365-2249.2005.02822.x] [Citation(s) in RCA: 70] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Natural killer (NK) cell cytotoxic activity and cell frequency, expressed as a percentage of total lymphocytes, have been determined in peripheral blood mononuclear cells from first-degree relatives of patients with systemic lupus erythematosus (SLE), the patients themselves, a group of rheumatoid arthritis (RA) patients and controls. Low levels of killing activity relative to controls were found in some members of all groups with the extent of depression falling into two ranges. Moderate reductions were seen in female (3/31, 10%) and male (4/14, 29%) relatives of SLE patients, female (12/60, 20%) and male (3/4, 75%) SLE patients and female RA patients (6/17, 35%). A more profound depression of killing activity was confined to other female SLE patients (15/60, 25%). There were strong correlations in all groups between killing activity and percentage of NK cells, but analysis of the ratio of these parameters and studies with purified preparations of NK cells suggest that the reduced activity in SLE frequently involves a defect in the killing capacity of the individual cells in addition to the reduced levels of NK cells. Azathioprine (AZA), which was used in treatment of 12 SLE patients, was invariably associated with low values of killing activity. It appears to substantially reduce the percentage of NK and B cells in an action unconnected with the NK cell abnormalities associated with SLE. The finding of low killing activity in relatives and a correlation between their activity and that of their patients support the view that NK cell deficiency is a genetic determinant of SLE. NK cells in SLE may produce insufficient levels of cytokines required for the regulation of IgG production.
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MESH Headings
- Adolescent
- Adult
- Aged
- Antirheumatic Agents/therapeutic use
- Arthritis, Rheumatoid/immunology
- Azathioprine/therapeutic use
- Cells, Cultured
- Cytotoxicity, Immunologic/drug effects
- Cytotoxicity, Immunologic/immunology
- Female
- Humans
- Immune Tolerance
- Immunity, Cellular
- Killer Cells, Natural/drug effects
- Killer Cells, Natural/immunology
- Lupus Erythematosus, Systemic/drug therapy
- Lupus Erythematosus, Systemic/genetics
- Lupus Erythematosus, Systemic/immunology
- Male
- Middle Aged
- Severity of Illness Index
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Affiliation(s)
- M R J Green
- Department of Immunology, Imperial College School of Medicine, London, UK
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25
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Green MRJ, Kennell ASM, Larche MJ, Seifert MH, Isenberg DA, Salaman MR. Natural killer cell activity in families of patients with systemic lupus erythematosus: demonstration of a killing defect in patients. Clin Exp Immunol 2005; 56:381-8. [PMID: 18405976 DOI: 10.1016/j.jinf.2008.02.013] [Citation(s) in RCA: 77] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2007] [Revised: 12/07/2007] [Accepted: 02/26/2008] [Indexed: 12/27/2022] Open
Abstract
Natural killer (NK) cell cytotoxic activity and cell frequency, expressed as a percentage of total lymphocytes, have been determined in peripheral blood mononuclear cells from first-degree relatives of patients with systemic lupus erythematosus (SLE), the patients themselves, a group of rheumatoid arthritis (RA) patients and controls. Low levels of killing activity relative to controls were found in some members of all groups with the extent of depression falling into two ranges. Moderate reductions were seen in female (3/31, 10%) and male (4/14, 29%) relatives of SLE patients, female (12/60, 20%) and male (3/4, 75%) SLE patients and female RA patients (6/17, 35%). A more profound depression of killing activity was confined to other female SLE patients (15/60, 25%). There were strong correlations in all groups between killing activity and percentage of NK cells, but analysis of the ratio of these parameters and studies with purified preparations of NK cells suggest that the reduced activity in SLE frequently involves a defect in the killing capacity of the individual cells in addition to the reduced levels of NK cells. Azathioprine (AZA), which was used in treatment of 12 SLE patients, was invariably associated with low values of killing activity. It appears to substantially reduce the percentage of NK and B cells in an action unconnected with the NK cell abnormalities associated with SLE. The finding of low killing activity in relatives and a correlation between their activity and that of their patients support the view that NK cell deficiency is a genetic determinant of SLE. NK cells in SLE may produce insufficient levels of cytokines required for the regulation of IgG production.
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MESH Headings
- Adolescent
- Adult
- Aged
- Antirheumatic Agents/therapeutic use
- Arthritis, Rheumatoid/immunology
- Azathioprine/therapeutic use
- Cells, Cultured
- Cytotoxicity, Immunologic/drug effects
- Cytotoxicity, Immunologic/immunology
- Female
- Humans
- Immune Tolerance
- Immunity, Cellular
- Killer Cells, Natural/drug effects
- Killer Cells, Natural/immunology
- Lupus Erythematosus, Systemic/drug therapy
- Lupus Erythematosus, Systemic/genetics
- Lupus Erythematosus, Systemic/immunology
- Male
- Middle Aged
- Severity of Illness Index
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Affiliation(s)
- M R J Green
- Department of Immunology, Imperial College School of Medicine, London, UK
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26
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Parks CG, Pandey JP, Dooley MA, Treadwell EL, St Clair EW, Gilkeson GS, Feghali-Bostwick CA, Feghali-Botswick CL, Cooper GS. Genetic polymorphisms in tumor necrosis factor (TNF)-alpha and TNF-beta in a population-based study of systemic lupus erythematosus: associations and interaction with the interleukin-1alpha-889 C/T polymorphism. Hum Immunol 2005; 65:622-31. [PMID: 15219382 DOI: 10.1016/j.humimm.2004.03.001] [Citation(s) in RCA: 49] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2003] [Revised: 03/09/2004] [Accepted: 03/11/2004] [Indexed: 10/26/2022]
Abstract
Tumor necrosis factor (TNF) is involved in the pathogenesis of systemic lupus erythematosus (SLE), but the role of TNF polymorphisms in SLE susceptibility remains unclear. Previous studies in different populations report an inconsistent association of the TNF-alpha -308A allele with SLE, sometimes depending on the presence of HLA-DR3. We examined the association of polymorphisms in TNF-alpha (-308G/A, -238G/A) and TNFbeta (+252A/G) in a population-based study of SLE in the southeastern United States and considered TNF-SLE associations with respect to HLA-DR3 and DR2 and the interleukin (IL)-1alpha -889C/T polymorphism, previously linked to SLE in this population. Genotypes were analyzed for 230 recently diagnosed SLE patients who met American College of Rheumatology classification criteria and 276 age- and sex-matched controls, randomly selected from driver's license registries. Carriage of the TNF-alpha -308A allele was significantly associated with SLE in Caucasians (OR = 2.3; 95% CI 1.4, 3.9), but not African Americans. Analyses stratified by IL-1alpha -889 genotypes (C/C vs C/T or T/T) revealed independent associations of SLE with TNF-alpha -308A or HLA-DR2 and DR3. This reflected a significant interaction of TNF and IL-1 genotypes in Caucasians, and yielded a strong association (OR = 8.0, p < 0.00001) for the combined "HLA-DR3, TNF-alpha -308A, IL-1alpha -889C/C" genotype. These findings provide evidence of cytokine gene epistasis in SLE susceptibility.
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Affiliation(s)
- Christine G Parks
- National Institute of Environmental Health Sciences, Durham, NC, USA.
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27
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D'Alfonso S, Barizzone N, Giordano M, Chiocchetti A, Magnani C, Castelli L, Indelicato M, Giacopelli F, Marchini M, Scorza R, Danieli MG, Cappelli M, Migliaresi S, Bigliardo B, Sabbadini MG, Baldissera E, Galeazzi M, Sebastiani GD, Minisola G, Ravazzolo R, Dianzani U, Momigliano-Richiardi P. Two single-nucleotide polymorphisms in the 5? and 3? ends of the osteopontin gene contribute to susceptibility to systemic lupus erythematosus. ACTA ACUST UNITED AC 2005; 52:539-47. [DOI: 10.1002/art.20808] [Citation(s) in RCA: 85] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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28
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Woolley N, Mustalahti K, Mäki M, Partanen J. Cytokine Gene Polymorphisms and Genetic Association with Coeliac Disease in the Finnish Population. Scand J Immunol 2005; 61:51-6. [PMID: 15644122 DOI: 10.1111/j.0300-9475.2005.01525.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Coeliac disease (CD) is an intestinal disorder caused by intolerance to dietary gluten in susceptible individuals. The HLA-DQ genes are major risk factors for CD, but other genes also play an important role in the disease susceptibility. Immune-mediated mechanisms are known to underlie the pathogenesis of CD. We studied single-nucleotide polymorphisms in transforming growth factor (TGF)-beta1, interleukin (IL)-10, IL-6, interferon (IFN)-gamma and tumour necrosis factor (TNF)-alpha genes in the Finnish population using family-based association approach. In addition, we genotyped a trinucleotide repeat polymorphism in the major histocompatibility complex (MHC) class I chain-related protein A (MICA) gene, located in the human leucocyte antigen (HLA) region in the vicinity of TNF-alpha. To control the effect of linkage disequilibrium between HLA-DQ genes and MICA and TNF-alpha, an HLA-stratified association analysis was performed. We did not find evidence of association between TGF-beta1, IL-10, IL-6 and IFN-gamma polymorphisms and CD susceptibility. No association was found for any of the MICA alleles independently of DQ genes, whereas TNF-alpha-308 A allele was slightly overrepresented on chromosomes carried by CD patients compared with control chromosomes, indicating that either TNF-alpha, or another gene in linkage disequilibrium with it, could confer increased susceptibility to CD. This result supports the earlier findings that the HLA region harbours a novel susceptibility factor in addition to HLA-DQ.
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Affiliation(s)
- N Woolley
- Research Laboratory and Department of Tissue Typing, Finnish Red Cross Blood Service, Helsinki, Finland.
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29
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Opdal SH. IL-10 gene polymorphisms in infectious disease and SIDS. ACTA ACUST UNITED AC 2004; 42:48-52. [PMID: 15325397 DOI: 10.1016/j.femsim.2004.06.006] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2004] [Accepted: 06/14/2004] [Indexed: 12/11/2022]
Abstract
Interleukin-10 (IL-10) is a regulatory cytokine, and its principal role in vivo is to limit inflammatory response. IL-10 has been shown to influence both the susceptibility and course of various diseases, and the different polymorphisms in the IL-10 gene promoter have been associated with disease prevalence and severity. The genes involved in the immune system are also assumed to be of importance with regard to sudden infant death syndrome (SIDS), and specific haplotypes in the IL-10 gene promoter have been reported associated both with SIDS and sudden unexpected death due to infection.
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Affiliation(s)
- Siri Hauge Opdal
- Institute of Forensic Medicine, Rikshospitalet University Hospital, 0027 Oslo, Norway.
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30
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Chong WP, Ip WK, Wong WHS, Lau CS, Chan TM, Lau YL. Association of interleukin-10 promoter polymorphisms with systemic lupus erythematosus. Genes Immun 2004; 5:484-92. [PMID: 15295621 DOI: 10.1038/sj.gene.6364119] [Citation(s) in RCA: 71] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Several lines of evidence suggest interleukin-10 gene (IL-10) is a candidate gene in susceptibility to systemic lupus erythematosus (SLE). We investigated the association of IL-10 promoter single-nucleotide polymorphisms (SNPs) (-3575T/A, -2849G/A, -2763C/A, -1082A/G, -819T/C and -592A/C) and microsatellites (IL10.R, IL10.G) with SLE in 554 Hong Kong Chinese patients and 708 ethnically matched controls. Six haplotypes (hts) were identified from the SNPs. The genotype distribution of the ht1 (T-C-A-T-A), which is associated with low IL-10 production, was different in patients and controls (P=0.009). The homozygous genotype of non-ht1 was significantly increased in patients (P=0.009, odds ratio (OR)=1.80, 95% CI: 1.15-2.82). The frequency of IL10.G4 of IL10.G was also significantly increased in patients (P=0.017, OR=2.53, 95% CI: 1.18-5.40). We found that the homozygous non-ht1 combined with short allele (CA repeat number < or =21) of IL10.G has a dose-dependent effect on SLE susceptibility: non-ht1/non-ht1 with homozygous short allele showed a higher OR (OR=4.11, 95% CI: 1.27-13.2, P=0.018) of association with SLE than the genotype of non-ht1/non-ht1 with heterozygous short/long allele (OR=2.98, 95% CI: 1.26-7.07, P=0.013) and homozygous long allele (OR=1.05, 95% CI: 0.62-1.78, P=0.848). The frequency of non-ht1 was significantly increased in patients with serositis (P<0.0001, OR=2.42, 95% CI: 1.55-3.80). In conclusion, the high expression promoter genotype is associated with SLE in Chinese.
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Affiliation(s)
- W P Chong
- Department of Paediatrics and Adolescent Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong SAR, China
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31
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Scassellati C, Zanardini R, Squitti R, Bocchio-Chiavetto L, Bonvicini C, Binetti G, Zanetti O, Cassetta E, Gennarelli M. Promoter haplotypes of interleukin-10 gene and sporadic Alzheimer's disease. Neurosci Lett 2004; 356:119-22. [PMID: 14746878 DOI: 10.1016/j.neulet.2003.11.033] [Citation(s) in RCA: 38] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Abstract
Clinical and immunopathological evidence support a potential role of the pro- and anti-inflammatory cytokine network in neurodegeneration of Alzheimer's disease (AD). Moreover, association studies suggest a possible involvement of cytokine-related genes in the susceptibility to sporadic AD. Since conflicting results are associated with the pro-inflammatory pathway, we investigated a putative effect of the anti-inflammatory counterpart focusing on the interleukin-10 (IL-10) gene. The 5' flanking region contains numerous polymorphisms; in particular, three single nucleotide polymorphisms (-1082 G/A, -819 T/C, -592 C/A) are in linkage disequilibrium resulting in three haplotypes GCC, ACC and ATA. We analyzed the IL-10 haplotype distributions in 215 Italian sporadic AD patients and 153 controls in an association case-control study. Haplotype frequencies did not reveal differences between the two samples, however the genotype GCC/ACC was more represented in AD patients (OR 1.91, 95% CI: 1.18-3.07). This putative risk factor could be independent of the presence of the ApoE epsilon 4 allele. Our results provide new insights on a possible involvement of the IL-10 gene in susceptibility to sporadic AD even though further functional and genetic investigations are necessary to clarify its role in AD.
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Affiliation(s)
- Catia Scassellati
- Genetics Unit, I.R.C.C.S. Centro San Giovanni di Dio-Fatebenefratelli, Brescia, Italy
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32
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Seldin MF, Gallagher G. Looking back and looking forward. Genes Immun 2003; 4:1-3. [PMID: 12595895 DOI: 10.1038/sj.gene.6363956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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