title: The association between the PTPN22 C1858T polymorphism and rheumatoid arthritis: a meta-analysis update.
abstract: The aim of this study was to determine whether the protein tyrosine phosphatase nonreceptor 22 (PTPN22) C1858T polymorphism confers susceptibility to rheumatoid arthritis (RA) in populations with different ethnicities. A meta-analysis was conducted on the PTPN22 C1858T polymorphism involving eighteen studies, which in total contained 20344 RA patients and 21828 controls. Meta-analysis revealed an association between the PTPN22 C1858T polymorphism T allele and RA in all subjects (odds ratio [OR] = 1.637, 95% confidence interval [CI] = 1.514-1.770, P < 0.001). After stratification by ethnicity, analysis indicated that the PTPN22 C1858T polymorphism T allele was significantly associated with RA in Europeans and Non-Europeans (OR = 1.587, 95% CI = 1.486-1.696, P < 0.001; OR = 1.748, 95% CI = 1.274-2.398, P < 0.001). Meta-analysis of the CT + TT genotype showed the same result patterns as that shown by the PTPN22 C1858T polymorphism T allele. Furthermore, a direct comparison between rheumatoid factor (RF)-positive and -negative subjects revealed a significant association with the T allele in RA patients with RF, but not in subjects without RF. In conclusion, this meta-analysis confirms that the PTPN22 C1858T polymorphism is associated with RA susceptibility in different ethnic groups, especially in Europeans, and the PTPN22 C1858T polymorphism T allele is significantly more prevalent in RF-positive patents than in RF-negative patients.
authors.affiliation: Division of Rheumatology, Department of Internal Medicine, Korea University College of Medicine, 126-1, Anam-dong 5-ga, Seongbuk-gu, Seoul, 136-705, Korea. lyhcgh@korea.ac.kr
authors.forename: Young Ho
authors.initials: YH
authors.lastname: Lee
authors.forename: Sang-Cheol
authors.initials: SC
authors.lastname: Bae
authors.forename: Sung Jae
authors.initials: SJ
authors.lastname: Choi
authors.forename: Jong Dae
authors.initials: JD
authors.lastname: Ji
authors.forename: Gwan Gyu
authors.initials: GG
authors.lastname: Song
mesh_terms: D000483:Alleles; D001172:Arthritis, Rheumatoid / Q000201:enzymology* / Q000235:genetics*; D016001:Confidence Intervals; D005006:Ethnicity / Q000235:genetics; D005787:Gene Frequency / Q000235:genetics; D056726:Genetic Association Studies; D018740:Genetic Heterogeneity; D020022:Genetic Predisposition to Disease; D006801:Humans; D016017:Odds Ratio; D020641:Polymorphism, Single Nucleotide / Q000235:genetics*; D015995:Prevalence; D054596:Protein Tyrosine Phosphatase, Non-Receptor Type 22 / Q000235:genetics*; D017594:Publication Bias
chemical_list: C516765:PTPN22 protein, human; D054596:Protein Tyrosine Phosphatase, Non-Receptor Type 22