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Pellenz FM, Dieter C, Lemos NE, Bauer AC, Souza BMD, Crispim D. Association of TYK2 polymorphisms with autoimmune diseases: A comprehensive and updated systematic review with meta-analysis. Genet Mol Biol 2021; 44:e20200425. [PMID: 33949620 PMCID: PMC8097517 DOI: 10.1590/1678-4685-gmb-2020-0425] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2020] [Accepted: 03/09/2021] [Indexed: 12/05/2022] Open
Abstract
Autoimmune diseases are characterized by the loss of self-tolerance, leading to
immune-mediated tissue destruction and chronic inflammation. Tyrosine kinase 2
(TYK2) protein plays a key role in immunity and apoptosis pathways. Studies have
reported associations between single nucleotide polymorphisms (SNPs) in the
TYK2 gene and autoimmune diseases; however, results are
still inconclusive. Thus, we conducted a systematic review followed by
meta-analysis. A literature search was performed to find studies that
investigated associations between TYK2 SNPs and autoimmune
diseases (multiple sclerosis, systemic lupus erythematosus, Crohn’s disease,
ulcerative colitis, psoriasis, rheumatoid arthritis, type 1 diabetes, and
inflammatory bowel disease). Pooled odds ratios (OR) with 95 % CI were
calculated using random (REM) or fixed (FEM) effects models in the Stata 11.0
Software. Thirty-four articles were eligible for inclusion in the meta-analyses,
comprising 9 different SNPs: rs280496, rs280500, rs280523, rs280519, rs2304256,
rs12720270, rs12720356, rs34536443, and rs35018800. Meta-analysis results showed
the minor alleles of rs2304256, rs12720270, rs12720356, rs34536443, and
rs35018800 SNPs were associated with protection against autoimmune diseases.
Moreover, the A allele of the rs280519 SNP was associated with risk for systemic
lupus erythematosus. Our meta-analyses demonstrated that the rs2304256,
rs12720270, rs12720356, rs34536443, rs35018800, and rs280519 SNPs in the
TYK2 gene are associated with different autoimmune
diseases.
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Affiliation(s)
- Felipe Mateus Pellenz
- Hospital de Clínicas de Porto Alegre, Serviço de Endocrinologia, Porto Alegre, RS, Brazil.,Universidade Federal do Rio Grande do Sul, Faculdade de Medicina, Programa de Pós-Graduação em Ciências Médicas, Porto Alegre, RS, Brazil
| | - Cristine Dieter
- Hospital de Clínicas de Porto Alegre, Serviço de Endocrinologia, Porto Alegre, RS, Brazil.,Universidade Federal do Rio Grande do Sul, Faculdade de Medicina, Programa de Pós-Graduação em Ciências Médicas, Porto Alegre, RS, Brazil
| | - Natália Emerim Lemos
- Hospital de Clínicas de Porto Alegre, Serviço de Endocrinologia, Porto Alegre, RS, Brazil.,Universidade Federal do Rio Grande do Sul, Faculdade de Medicina, Programa de Pós-Graduação em Ciências Médicas, Porto Alegre, RS, Brazil
| | - Andrea Carla Bauer
- Hospital de Clínicas de Porto Alegre, Serviço de Endocrinologia, Porto Alegre, RS, Brazil.,Universidade Federal do Rio Grande do Sul, Faculdade de Medicina, Programa de Pós-Graduação em Ciências Médicas, Porto Alegre, RS, Brazil.,Hospital de Clínicas de Porto Alegre, Serviço de Nefrologia, Porto Alegre, RS, Brazil
| | - Bianca Marmontel de Souza
- Hospital de Clínicas de Porto Alegre, Serviço de Endocrinologia, Porto Alegre, RS, Brazil.,Universidade Federal do Rio Grande do Sul, Faculdade de Medicina, Programa de Pós-Graduação em Ciências Médicas, Porto Alegre, RS, Brazil
| | - Daisy Crispim
- Hospital de Clínicas de Porto Alegre, Serviço de Endocrinologia, Porto Alegre, RS, Brazil.,Universidade Federal do Rio Grande do Sul, Faculdade de Medicina, Programa de Pós-Graduação em Ciências Médicas, Porto Alegre, RS, Brazil
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