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Lima SC, Gomes da Silva IIF, Nascimento DDQ, de Moura RR, Mesquita MDS, Asano NMJ, Fernandes GV, Valente LM, Rushansky E, Mariano MHQDA, Xavier RM, Chies JAB, Crovella S, Sandrin-Garcia P. CIITA gene polymorphism (rs3087456) in systemic lupus erythematosus and rheumatoid arthritis: A population-based cohort study. Int J Immunogenet 2021; 48:429-434. [PMID: 34180145 DOI: 10.1111/iji.12548] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 05/30/2021] [Accepted: 06/06/2021] [Indexed: 11/30/2022]
Abstract
Systemic lupus erythematosus (SLE) and rheumatoid arthritis (RA) are influenced by genetic variants in immune system HLA genes. The Class II Major Histocompatibility Complex Transactivator (CIITA) is an important co-activator of the HLA transcriptional complex; the single nucleotide variant (SNV) rs3087456 localized in the gene promoter region (-168 A/G) has been reported as able to modify its transcription level. In our study, we assessed CIITA rs3087456 SNV in 1,044 Brazilians from two Brazilian regions (Northeast and South) to verify the association with susceptibility and clinical manifestations of (SLE) and (RA) using TaqMan SNP Genotyping Assays System. We observed a protection for a recessive model (GG x AA+AG) for RA susceptibility and increased risk for erosion development in AG genotype patients. No significant association was observed for SLE susceptibility; however, we observed significant increased risk for Class IV and V nephritis development in G allele and GG genotype patients. In conclusion, we showed the contribution of CIITA rs3087456 to SLE or RA clinical features and RA susceptibility in the studied populations.
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Affiliation(s)
| | | | - Denise de Queiroga Nascimento
- Laboratory of Immunopathology Keizo Asami, Recife, Brazil.,PostGraduate Program in Genetics, Federal University of Pernambuco, Recife, Brazil
| | | | | | | | | | - Lucila Maria Valente
- Division of Nephrology, Clinical Hospital, Federal University of Pernambuco, Recife, Brazil
| | - Eliezer Rushansky
- Division of Clinical Rheumatology, University of Pernambuco, Recife, Brazil
| | | | - Ricardo Machado Xavier
- Rheumatology Sector, Clinical Hospital, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - José Artur Bogo Chies
- Department of Genetics, Federal University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Sergio Crovella
- Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, State of Qatar
| | - Paula Sandrin-Garcia
- Laboratory of Immunopathology Keizo Asami, Recife, Brazil.,Department of Genetics, Federal University of Pernambuco, Recife, Brazil
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Yau ACY, Piehl F, Olsson T, Holmdahl R. Effects of C2ta genetic polymorphisms on MHC class II expression and autoimmune diseases. Immunology 2016; 150:408-417. [PMID: 27861821 DOI: 10.1111/imm.12692] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2016] [Revised: 11/03/2016] [Accepted: 11/09/2016] [Indexed: 11/28/2022] Open
Abstract
Antigen presentation by the MHC-II to CD4+ T cells is important in adaptive immune responses. The class II transactivator (CIITA in human and C2TA in mouse) is the master regulator of MHC-II gene expression. It coordinates the transcription factors necessary for the transcription of MHC-II molecules. In humans, genetic variations in CIITA have been associated with differential expression of MHC-II and susceptibility to autoimmune diseases. Here we made use of a C2ta congenic mouse strain (expressing MHC-II haplotype H-2q ) to investigate the effect of the natural genetic polymorphisms in type I promoter of C2ta on MHC-II expression and function. We demonstrate that an allelic variant in the type I promoter of C2ta resulted in an increased expression of MHC-II on macrophages (72-151% higher mean florescence intensity) and conventional dendritic cells (13-65% higher mean florescence intensity) in both spleen and peripheral blood. The increase in MHC-II expression resulted in an increase in antigen presentation to T cells in vitro and increased T-cell activation. The differential MHC-II expression in B6Q.C2ta, however, did not alter the disease development in models of rheumatoid arthritis (collagen-induced arthritis and human glucose-6-phosphate-isomerase325-339 -peptide-induced arthritis), or multiple sclerosis (MOG1-125 protein-induced and MOG79-96 peptide-induced experimental autoimmune encephalomyelitis). This is the first study to address the role of an allelic variant in type I promoter of C2ta in MHC-II expression and autoimmune diseases; and shows that C2ta polymorphisms regulate MHC-II expression and T-cell responses but do not necessarily have a strong impact on autoimmune diseases.
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Affiliation(s)
- Anthony C Y Yau
- Medical Inflammation Research, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
| | - Fredrik Piehl
- Department of Clinical Neuroscience, Neuroimmunology Unit, Karolinska Institutet, Stockholm, Sweden
| | - Tomas Olsson
- Department of Clinical Neuroscience, Neuroimmunology Unit, Karolinska Institutet, Stockholm, Sweden
| | - Rikard Holmdahl
- Medical Inflammation Research, Department of Medical Biochemistry and Biophysics, Karolinska Institutet, Stockholm, Sweden
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Bronson PG, Goldstein BA, Ramsay PP, Beckman KB, Noble JA, Lane JA, Seldin MF, Kelly JA, Harley JB, Moser KL, Gaffney PM, Behrens TW, Criswell LA, Barcellos LF. The rs4774 CIITA missense variant is associated with risk of systemic lupus erythematosus. Genes Immun 2011; 12:667-71. [PMID: 21614020 PMCID: PMC3387803 DOI: 10.1038/gene.2011.36] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2011] [Accepted: 03/17/2011] [Indexed: 12/30/2022]
Abstract
The major histocompatibility complex (MHC) class II transactivator gene (CIITA) encodes an important transcription factor required for human leukocyte antigens (HLA) class II MHC-restricted antigen presentation. MHC genes, including the HLA class II DRB1*03:01 allele, are strongly associated with systemic lupus erythematosus (SLE). Recently the rs4774 CIITA missense variant (+1632G/C) was reported to be associated with susceptibility to multiple sclerosis. In the current study, we investigated CIITA, DRB1*03:01 and risk of SLE using a multi-stage analysis. In stage 1, 9 CIITA variants were tested in 658 cases and 1363 controls (N=2021). In stage 2, rs4774 was tested in 684 cases and 2938 controls (N=3622). We also performed a meta-analysis of the pooled 1342 cases and 4301 controls (N=5643). In stage 1, rs4774(*)C was associated with SLE (odds ratio (OR)=1.24, 95% confidence interval (95% CI)=1.07-1.44, P=4.2 × 10(-3)). Similar results were observed in stage 2 (OR=1.16, 95% CI=1.02-1.33, P=8.5 × 10(-3)) and the meta-analysis of the combined data set (OR=1.20, 95% CI=1.09-1.33, P(meta)=2.5 × 10(-4)). In all three analyses, the strongest evidence for association between rs4774(*)C and SLE was present in individuals who carried at least one copy of DRB1*03:01 (P(meta)=1.9 × 10(-3)). Results support a role for CIITA in SLE, which appears to be stronger in the presence of DRB1*03:01.
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Affiliation(s)
- P G Bronson
- Division of Epidemiology, Genetic Epidemiology and Genomics Laboratory, School of Public Health, University of California, Berkeley, CA 94720-7356, USA
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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: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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