STAT4 Polymorphism Is Associated with Early-Onset Type 1 Diabetes, but Not with Late-Onset Type 1 Diabetes
- Authors
- Lee, Hye-Soon; Park, Hyewon; Yang, Seiwon; Kim, Dukhee; Park, Yongsoo
- Issue Date
- Dec-2008
- Publisher
- WILEY-BLACKWELL
- Keywords
- STAT4; type 1 diabetes mellitus; early-onset type 1 diabetes
- Citation
- IMMUNOLOGY OF DIABETES V: FROM BENCH TO BEDSIDE, v.1150, pp.93 - 98
- Indexed
- SCIE
SCOPUS
- Journal Title
- IMMUNOLOGY OF DIABETES V: FROM BENCH TO BEDSIDE
- Volume
- 1150
- Start Page
- 93
- End Page
- 98
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/177581
- DOI
- 10.1196/annals.1447.013
- ISSN
- 0077-8923
- Abstract
- In an effort to discover non-HLA genes affecting susceptibility to type 1 diabetes (T1D), we have investigated the association of polymorphisms in STAT4, an important signaling molecule of IL-12, gamma IFN, and IL-23, in a sample of 389 TID patients and 152 nondiabetic controls in Korea. Four SNPs on chromosome 2q, which were recently found to be associated with rheumatoid arthritis, were examined for association and linkage disequilibrium. We found that neither alleles or genotypes among all four SNPs nor reconstructed haplotypes of the three SNPs within the same LD block (rs7574865, rs8179673, and rs10181656) were associated with susceptibility to T1D. When we stratified T1D patients into early-onset and late-onset subgroups on the basis of fewer or more than 7.8 years of age at diagnosis, however, the minor alleles of three SNPs (rs7574865, rs8179673, and rs10181656) showed a significant association with susceptibility to TID in the early-onset subgroup (i.e., rs7574865, OR = 1.44 [1.03-2.01], P < 0.05), but not in the late-onset subgroup, suggesting that STAT4 is related to earlier development of T1D. The analysis of genotypes and haplotypes of the same SNPs (rs7574865, rs8179673, and rs10181656) showed very comparable degrees of risk for TID. The age at diagnosis is lowest in the patients carrying the homozygotes of a minor allele, middle in the heterozygotes, and highest in the homozygotes of a major allele, suggesting the dosage effects of risk alleles on the age of onset of disease. Recognizing that only the early-onset cases might represent the true autoimmune T1D in Asian populations, we see that STAT4 alleles and haplotype might influence cytokine signaling and, therefore, development of T1D.
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