Title
Phenotypic associations of genetic susceptibility loci in systemic lupus erythematosus
Date Issued
01 October 2011
Access level
open access
Resource Type
journal article
Author(s)
Sanchez E.
Nadig A.
Richardson B.C.
Freedman B.I.
Kaufman K.M.
Kelly J.A.
Niewold T.B.
Kamen D.L.
Gilkeson G.S.
Ziegler J.T.
Langefeld C.D.
Edberg J.C.
Ramsey-Goldman R.
Petri M.
Brown E.E.
Kimberly R.P.
Reveille J.D.
Vilá L.M.
Merrill J.T.
Anaya J.M.
James J.A.
Pons-Estel B.A.
Martin J.
Park S.Y.
Bang S.Y.
Bae S.C.
Moser K.L.
Vyse T.J.
Criswell L.A.
Gaffney P.M.
Tsao B.P.
Jacob C.O.
Harley J.B.
Alarcón-Riquelme M.E.
Sawalha A.H.
University of Alabama
Publisher(s)
BMJ Publishing Group
Abstract
Objective: Systemic lupus erythematosus is a clinically heterogeneous autoimmune disease. A number of genetic loci that increase lupus susceptibility have been established. This study examines if these genetic loci also contribute to the clinical heterogeneity in lupus. Materials and methods: 4001 European-derived, 547 Hispanic, 1590 African-American and 1191 Asian lupus patients were genotyped for 16 confirmed lupus susceptibility loci. Ancestry informative markers were genotyped to calculate and adjust for admixture. The association between the risk allele in each locus was determined and compared in patients with and without the various clinical manifestations included in the ACR criteria. Results: Renal disorder was significantly correlated with the lupus risk allele in ITGAM (p=5.0 × 10-6, OR 1.25, 95% CI 1.12 to 1.35) and in TNFSF4 (p=0.0013, OR 1.14, 95% CI 1.07 to 1.25). Other significant findings include the association between risk alleles in FCGR2A and malar rash (p=0.0031, OR 1.11, 95% CI 1.17 to 1.33), ITGAM and discoid rash (p=0.0020, OR 1.20, 95% CI 1.06 to 1.33), STAT4 and protection from oral ulcers (p=0.0027, OR 0.89, 95% CI 0.83 to 0.96) and IL21 and haematological disorder (p=0.0027, OR 1.13, 95% CI 1.04 to 1.22). All these associations are significant with a false discovery rate of <0.05 and pass the significance threshold using Bonferroni correction for multiple testing. Conclusion: Significant associations were found between lupus clinical manifestations and the FCGR2A, ITGAM, STAT4, TNSF4 and IL21 genes. The findings suggest that genetic profiling might be a useful tool to predict disease manifestations in lupus patients in the future.
Start page
1752
End page
1757
Volume
70
Issue
10
Language
English
OCDE Knowledge area
Genética humana
Inmunología
Scopus EID
2-s2.0-80052461085
PubMed ID
Source
Annals of the Rheumatic Diseases
ISSN of the container
0003-4967
Sponsor(s)
National Institute of Dental and Craniofacial Research R01DE018209 NIDCR
Sources of information:
Directorio de Producción Científica
Scopus