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Lookup NU author(s): Professor Jaap van Laar
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Systemic sclerosis (SSc) and systemic lupus erythematosus (SLE) are two archetypal systemic autoimmune diseases which have been shown to share multiple genetic susceptibility loci. In order to gain insight into the genetic basis of these diseases, we performed a pan-meta-analysis of two genome-wide association studies (GWASs) together with a replication stage including additional SSc and SLE cohorts. This increased the sample size to a total of 21 109 (6835 cases and 14 274 controls). We selected for replication 19 SNPs from the GWAS data. We were able to validate KIAA0319L (P = 3.31 x 10(-11), OR = 1.49) as novel susceptibility loci for SSc and SLE. Furthermore, we also determined that the previously described SLE susceptibility loci PXK (P = 3.27 x 10(-11), OR = 1.20) and JAZF1 (P = 1.11 x 10(-8), OR = 1.13) are shared with SSc. Supporting these new discoveries, we observed that KIAA0319L was overexpressed in peripheral blood cells of SSc and SLE patients compared with healthy controls. With these, we add three (KIAA0319L, PXK and JAZF1) and one (KIAA0319L) new susceptibility loci for SSc and SLE, respectively, increasing significantly the knowledge of the genetic basis of autoimmunity.
Author(s): Martin JE, Assassi S, Diaz-Gallo LM, Broen JC, Simeon CP, Castellvi I, Vicente-Rabaneda E, Fonollosa V, Ortego-Centeno N, Gonzalez-Gay MA, Espinosa G, Carreira P, Camps M, Sabio JM, D'alfonso S, Vonk MC, Voskuyl AE, Schuerwegh AJ, Kreuter A, Witte T, Riemekasten G, Hunzelmann N, Airo P, Beretta L, Scorza R, Lunardi C, Van Laar J, Chee MM, Worthington J, Herrick A, Denton C, Fonseca C, Tan FK, Arnett F, Zhou XD, Reveille JD, Gorlova O, Koeleman BPC, Radstake TRDJ, Vyse T, Mayes MD, Alarcon-Riquelme ME, Martin J, Spanish Scleroderma Grp, SLEGEN Consortium, US Scleroderma GWAS Grp, BIOLUPUS
Publication type: Article
Publication status: Published
Journal: Human Molecular Genetics
Year: 2013
Volume: 22
Issue: 19
Pages: 4021-4029
Print publication date: 01/10/2013
Online publication date: 04/06/2013
Acceptance date: 28/05/2013
ISSN (print): 0964-6906
ISSN (electronic): 1460-2083
Publisher: Oxford University Press
URL: http://dx.doi.org/10.1093/hmg/ddt248
DOI: 10.1093/hmg/ddt248
PubMed id: 23740937
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