TY - JOUR
T1 - Evidence for PTPN22 R620W polymorphism as the sole common risk variant for rheumatoid arthritis in the 1p13.2 region
AU - Martín, Jose-Ezequiel
AU - Alizadeh, Behrooz Z
AU - González-Gay, Miguel A
AU - Balsa, Alejandro
AU - Pascual-Salcedo, Dora
AU - González-Escribano, María F
AU - Rodriguez-Rodriguez, Luis
AU - Fernández-Gutiérrez, Benjamín
AU - Raya, Enrique
AU - Coenen, Marieke J H
AU - van Riel, Piet
AU - Radstake, Timothy R D J
AU - Kvien, Tore K
AU - Viken, Marte K
AU - Lie, Benedicte A
AU - Koeleman, Bobby P C
AU - Martín, Javier
PY - 2011/11
Y1 - 2011/11
N2 - OBJECTIVE: The PTPN22 rs2476601 genetic variant has been associated with rheumatoid arthritis (RA) and other autoimmune diseases. Some reports suggest that this single-nucleotide polymorphism (SNP) may not be the only causal variant in the region of PTPN22. Our aim was to identify new independent RA-associated common gene variants in the PTPN22 region.METHODS: We analyzed Wellcome Trust Case-Control Consortium genome-wide association study data for associations in the 397.2 kb PTPN22 region and selected 9 associated SNP (with p < 5 × 10(-3)) for replication and dependence analysis. The replication cohorts comprised 2857 patients with RA and 2994 controls from Spain, Netherlands, and Norway.RESULTS: We found that 6 of the 9 selected SNP were associated in the Spanish cohort. Of these, 4 were also associated in the Dutch and Norwegian cohorts, and all 6 were associated with RA in the combined analysis. Conditional analyses showed that none of these associations was independent of rs2476601.CONCLUSION: The SNP rs2476601 located in the PTPN22 gene is the sole common genetic variant associated with RA in the 1p13.2 region, suggesting that neighbor genes of PTPN22 do not have a major influence in RA.
AB - OBJECTIVE: The PTPN22 rs2476601 genetic variant has been associated with rheumatoid arthritis (RA) and other autoimmune diseases. Some reports suggest that this single-nucleotide polymorphism (SNP) may not be the only causal variant in the region of PTPN22. Our aim was to identify new independent RA-associated common gene variants in the PTPN22 region.METHODS: We analyzed Wellcome Trust Case-Control Consortium genome-wide association study data for associations in the 397.2 kb PTPN22 region and selected 9 associated SNP (with p < 5 × 10(-3)) for replication and dependence analysis. The replication cohorts comprised 2857 patients with RA and 2994 controls from Spain, Netherlands, and Norway.RESULTS: We found that 6 of the 9 selected SNP were associated in the Spanish cohort. Of these, 4 were also associated in the Dutch and Norwegian cohorts, and all 6 were associated with RA in the combined analysis. Conditional analyses showed that none of these associations was independent of rs2476601.CONCLUSION: The SNP rs2476601 located in the PTPN22 gene is the sole common genetic variant associated with RA in the 1p13.2 region, suggesting that neighbor genes of PTPN22 do not have a major influence in RA.
KW - Arthritis, Rheumatoid
KW - Case-Control Studies
KW - Genetic Predisposition to Disease
KW - Genome-Wide Association Study
KW - Humans
KW - Netherlands
KW - Norway
KW - Polymorphism, Single Nucleotide
KW - Protein Tyrosine Phosphatase, Non-Receptor Type 22
KW - Risk Factors
KW - Spain
KW - Journal Article
KW - Research Support, Non-U.S. Gov't
U2 - 10.3899/jrheum.110361
DO - 10.3899/jrheum.110361
M3 - Article
C2 - 21965649
SN - 0315-162X
VL - 38
SP - 2290
EP - 2296
JO - Journal of Rheumatology
JF - Journal of Rheumatology
IS - 11
ER -