IL1A & IL1B genetic polymorphisms are risk factors for thyroid cancer in a Chinese Han population
2019
Abstract Introduction Thyroid carcinoma accounts for a large proportion of endocrine neoplasia, and the relationship between inflammation and thyroid cancer has been previously validated. IL-1α (Interleukin 1 alpha) and IL-1β (Interleukin 1 beta), encoded by IL1A and IL1B, respectively, are implicated in numerous inflammatory responses and in tumor progression. The objective of this research was to assess the association of genetic polymorphisms of IL1A and IL1B with the risk of thyroid cancer in a Chinese Han population. Materials and methods Genotypes of the 12 candidate SNPs in IL1A and IL1B were identified among 208 thyroid cancer patients and 279 healthy controls using an Agena MassARRY method. Genetic model analysis was carried out to evaluate the significant links between the variants and thyroid cancer risk. HaploReg v4.1 and the GTEx database were used for SNP functional annotation and expression quantitative trait loci (eQTL) analysis, respectively. Results Significant associations were detected between IL1A rs3783521 and an increased thyroid cancer risk in our study population (p 48 years. Additionally, bioinformatics and eQTLs analysis also provided supporting evidence for the effects of the SNPs on gene regulation. Conclusions Our study is the first to report that IL1A and IL1B polymorphisms are risk factors for thyroid carcinoma in a Chinese Han population.
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