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Title

Evidence of New Risk Genetic Factor to Systemic Lupus Erythematosus: The UBASH3A Gene

AuthorsDíaz-Gallo, L. M.; Sánchez, Elena; Ortego-Centeno, N.; Sabio, José Mario; García-Hernández, F. J.; Ramón, Enrique de; González-Gay, M. A.; Witte, Torsten; Anders, H.J.; González-Escribano, María Francisca; Martín, J.
KeywordsGENOME-WIDE ASSOCIATION
VARIANTS
LOCI
AUTOIMMUNITY
EXPRESSION
DISEASE
Issue Date2-Apr-2013
PublisherPublic Library of Science
CitationPLoS ONE
AbstractThe ubiquitin associated and Src-homology 3 (SH3) domain containing A (UBASH3a) is a suppressor of T-cell receptor signaling, underscoring antigen presentation to T-cells as a critical shared mechanism of diseases pathogenesis. The aim of the present study was to determine whether the UBASH3a gene influence the susceptibility to systemic lupus erythematosus (SLE) in Caucasian populations. We evaluated five UBASH3a polymorphisms (rs2277798, rs2277800, rs9976767, rs13048049 and rs17114930), using TaqMan (R) allelic discrimination assays, in a discovery cohort that included 906 SLE patients and 1165 healthy controls from Spain. The SNPs that exhibit statistical significance difference were evaluated in a German replication cohort of 360 SLE patients and 379 healthy controls. The case-control analysis in the Spanish population showed a significant association between the rs9976767 and SLE (Pc = 9.9E-03 OR = 1.21 95% CI = 1.07-1.37) and a trend of association for the rs2277798 analysis (P = 0.09 OR = 0.9 95% CI = 0.79-1.02). The replication in a German cohort and the meta-analysis confirmed that the rs9976767 (Pc = 0.02; Pc = 2.4E-04, for German cohort and meta-analysis, respectively) and rs2277798 (Pc = 0.013; Pc = 4.7E-03, for German cohort and meta-analysis, respectively) UBASH3a variants are susceptibility factors for SLE. Finally, a conditional regression analysis suggested that the most likely genetic variation responsible for the association was the rs9976767 polymorphism. Our results suggest that UBASH3a gene plays a role in the susceptibility to SLE. Moreover, our study indicates that UBASH3a can be considered as a common genetic factor in autoimmune diseases.
DescriptionCreative Commons Attribution License.
Publisher version (URL)http://www.plosone.org/article/comments/info%3Adoi%2F10.1371%2Fjournal.pone.0060646;jsessionid=95E0E622FF1ABCA75227AEF6BE485466
URIhttp://hdl.handle.net/10261/86952
DOI10.1371/journal.pone.0060646
ISSN1932-6203
Appears in Collections:(IPBLN) Artículos
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