Journal
SCIENTIFIC REPORTS
Volume 8, Issue -, Pages -Publisher
NATURE PUBLISHING GROUP
DOI: 10.1038/s41598-018-26274-y
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Funding
- Proyecto de Excelencia de la Junta de Andalucia [CTS-2548]
- Fundacion Ramon Areces
- King Gustaf Vth - 80th Jubilee Fund [FAI-2015-0098]
- Clas Groschinskys Minnesfond [M9 25, SVK]
- Olle Engkvist Byggmastare Fund [SOEB 210/226]
- Marcus Borgstroms Foundation
- Swedish Rheumatism association [R-548551, R-145981, R-230461, R-309971]
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In an effort to identify rare alleles associated with SLE, we have performed whole exome sequencing of the most distantly related affected individuals from two large Icelandic multicase SLE families followed by Ta targeted genotyping of additional relatives. We identified multiple rare likely pathogenic variants in nineteen genes co-segregating with the disease through multiple generations. Gene co-expression and protein-protein interaction analysis identified a network of highly connected genes comprising several loci previously implicated in autoimmune diseases. These genes were significantly enriched for immune system development, lymphocyte activation, DNA repair, and V(D) J gene recombination GO-categories. Furthermore, we found evidence of aggregate association and enrichment of rare variants at the FAM71E1/EMC10 locus in an independent set of 4,254 European SLE-cases and 4,349 controls. Our study presents evidence supporting that multiple rare likely pathogenic variants, in newly identified genes involved in known disease pathogenic pathways, segregate with SLE at the familial and population level.
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