Journal
ENDOCRINE JOURNAL
Volume 65, Issue 8, Pages 815-826Publisher
JAPAN ENDOCRINE SOC
DOI: 10.1507/endocrj.EJ18-0050
Keywords
Th2; autoimmune thyroid disease; severity; intractability; polymorphism
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Funding
- JSPS KAKENHI [JP17H04111]
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The prognosis of autoimmune thyroid disease (AITD) is difficult to predict. Th2 cells suppress the differentiation of Th1 and Th17 cells, which are associated with the prognosis of AITD. However, there are few reports as to whether Th2 chemotaxis-related genes, such as CRTH2 (chemoattractant receptor-homologous molecule expressed on Th2 cells), IL-25, TARC/CCL17 (Thymus and activation regulated chemokine/chemokine ligand 17) or STAT6 (Signal transducer and activator of transcription 6), affect the pathology of and/or susceptibility to AITD. Therefore, in this study, we genotyped functional SNPs in these genes to clarify the association of the genetic differences of genes related to Th2 differentiation and chemotaxis with the development and the prognosis of AITDs. The frequencies of the AA genotype of the CRTH2 rs545659 SNP and the CC genotype and the C allele of the CRTH2 rs634681 SNP were higher in patients with severe HD than in patients with mild HD. The frequency of the CC genotype in the TARC rs223828 SNP was higher in patients with intractable GD than in patients with GD in remission. In conclusion, the CRTH2 rs545659 and rs634681 SNPs were associated with the severity of HD, and the TARC/CCL17 rs223828 SNP was associated with the intractability of GD.
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