The PTPN22 promoter polymorphism -1123GC association cannot be distinguished from the 1858CT association in a Norwegian rheumatoid arthritis material
| Autor: | Erik Thorsby, Marte K. Viken, Siri Tennebø Flåm, Marita Olsson, O Førre, Benedicte A. Lie, Tore K Kvien |
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| Rok vydání: | 2007 |
| Předmět: |
Adolescent
Immunology Arthritis Single-nucleotide polymorphism Thymus Gland Biology Biochemistry Polymorphism Single Nucleotide PTPN22 Arthritis Rheumatoid Genetics medicine Immunology and Allergy SNP Humans Genetic Predisposition to Disease Allele Child Promoter Regions Genetic Gene Protein Tyrosine Phosphatase Non-Receptor Type 1 Type 1 diabetes Norway Infant Newborn Infant Protein Tyrosine Phosphatase Non-Receptor Type 22 General Medicine medicine.disease Rheumatoid arthritis Child Preschool Protein Tyrosine Phosphatases |
| Zdroj: | Tissue antigens. 70(3) |
| ISSN: | 0001-2815 |
| Popis: | The protein tyrosine phosphatase nonreceptor 22 (PTPN22) gene has, during the last 2 years, been recognized as a susceptibility gene for numerous autoimmune diseases, including rheumatoid arthritis (RA) and type 1 diabetes. An association between the exonic 1858C>T single nucleotide polymorphism (SNP) and RA has repeatedly been replicated in several Caucasian populations. The SNP is not associated with autoimmune diseases in Asian populations, as the 1858T allele is almost absent. Recently, a promoter polymorphism -1123G>C was proposed to be associated with acute-onset type 1 diabetes in Japanese and Korean populations. Furthermore, in Caucasian populations, the presence of additional PTPN22 risk variants has been suggested, indicating that the 1858C>T risk variant cannot explain the entire disease association observed in the region. In this study, we wanted to jointly address and integrate these separate findings to further elucidate the association between the PTPN22 gene and RA in a Norwegian material of 861 RA patients and 559 healthy controls. Our results revealed that the strength of the association with the PTPN22 promoter polymorphism, -1123G>C, is analogous to that observed for 1858C>T. As the -1123G>C variant is also polymorphic in Asian populations, our data underpin the need to further explore the association between this variant and autoimmune diseases in different populations. |
| Databáze: | OpenAIRE |
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