Journal
RHEUMATOLOGY
Volume 50, Issue 4, Pages 682-688Publisher
OXFORD UNIV PRESS
DOI: 10.1093/rheumatology/keq313
Keywords
Systemic lupus erythematosus; Genetics; Association; Single-nucleotide polymorphism
Categories
Funding
- National Natural Science Foundation [30972727]
- Anhui Skin Genetic Study Innovative Research Team Program [TD200701]
Ask authors/readers for more resources
Methods. Thirty-eight single nucleotide polymorphisms from our GWAS were genotyped in two additional Chinese Han cohorts (total 3152 cases and 7050 controls) using the Sequenom Massarray system. Association analyses were performed using logistic regression with gender or sample cohorts as a covariate. Results. Association evidence for rs16972959 (PRKCB at 16p11.2) and rs12676482 (8p11.21) with SLE was replicated independently in both replication cohorts (P < 0.05), showing high significance for SLE in combined all 4199 cases and 8255 controls of Chinese Han [rs16972959: odds ratio (OR) = 0.81; 95% CI 0.76, 0.87; P-combined = 1.35 x 10(-9); rs12676482: OR = 1.26; 95% CI 1.15, 1.38; P-combined = 6.68 x 10(-7)). PRKCB is related to the established SLE immune-related pathway (NF-kappa B) and 8p11.21 contains important candidate genes such as IKBKB and DKK4. IKBKB is a critical component of NF-kappa B and DKK4 is an inhibitor of canonical Wnt signalling pathway. Interestingly, PRKCB is required for recruiting IKBKB into lipid rafts, up-regulating NF-kappa B-dependent survival signal. Conclusions. Our findings provided novel insights into the genetic architecture of SLE and emphasized the contribution of multiple variants of modest effect. Further study focused on PRKCB, 8p11.21, should advance our understanding on the pathogenesis of SLE.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available