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RET polymorphisms might be the risk factors for thyroid cancer.

ABSTRACT: The purpose of the study is to investigate the relationship between rs1799939, rs1800858 and rs74799832 polymorphisms of RET with thyroid cancer (TC) susceptibility.Genotypes distribution of control groups were tested by Hardy-Weinberg equilibrium (HWE). Rs1799939, rs1800858 and rs74799832 polymorphisms of RET were researched in 135 patients with TC and 135 healthy people using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Odds ratio (OR) with 95% confidence interval (CI) were calculated to evaluate the association between RET polymorphisms and the risk of TC by Chi-squared test.Genotypes frequencies of the control group were consistent with HWE. The frequency of genotype AA and allele A in rs1799939 were significantly higher in patients with TC than controls (OR=3.768, P=0.046; OR=1.695, P=0.035). Genotype GG and allele G of rs1800858 remarkably increased the risk of TC (OR=2.149, P=0.039; OR=1.45, P=0.039). Moreover, CC genotype and C allele in rs74799832 polymorphism was related with TC susceptibility. (OR=2.28, P=0.049; OR=1.566, P=0.049).In present result, RET rs1799939, rs1800858 and rs74799832 polymorphisms might be the risk factors for TC.

SUBMITTER: Huang RX

PROVIDER: S-EPMC4503170 | biostudies-literature | 2015

REPOSITORIES: biostudies-literature

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RET polymorphisms might be the risk factors for thyroid cancer.

Huang Rui-Xue RX Yang Fei F

International journal of clinical and experimental pathology 20150501 5

<h4>Aims</h4>The purpose of the study is to investigate the relationship between rs1799939, rs1800858 and rs74799832 polymorphisms of RET with thyroid cancer (TC) susceptibility.<h4>Methods</h4>Genotypes distribution of control groups were tested by Hardy-Weinberg equilibrium (HWE). Rs1799939, rs1800858 and rs74799832 polymorphisms of RET were researched in 135 patients with TC and 135 healthy people using polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP). Odds ratio ...[more]

PMID: 26191299

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Project description:BackgroundAutoimmune thyroid disease (AITD) comprises diseases including Hashimoto's thyroiditis and Graves' disease, both characterized by reactivity to autoantigens causing, respectively, inflammatory destruction and autoimmune stimulation of the thyroid-stimulating hormone receptor. AITD is the most common thyroid disease and the leading form of autoimmune disease in women. Cytokines are key regulators of the immune and inflammatory responses; therefore, genetic variants at cytokine-encoding genes are potential risk factors for AITD.MethodsPolymorphisms in the IL6-174 G/C (rs1800795), TNFA-308 G/A (rs1800629), IL1B-511 C/T (rs16944), and IFNGR1-56 T/C (rs2234711) genes were assessed in a case-control study comprising 420 Hashimoto's thyroiditis patients, 111 Graves' disease patients and 735 unrelated controls from Portugal. Genetic variants were discriminated by real-time PCR using TaqMan SNP genotyping assays.ResultsA significant association was found between the allele A in TNFA-308 G/A and Hashimoto's thyroiditis, both in the dominant (OR?=?1.82, CI?=?1.37-2.43, p-value?=?4.4×10(-5)) and log-additive (OR?=?1.64, CI?=?1.28-2.10, p-value?=?8.2×10(-5)) models. The allele C in IL6-174 G/C is also associated with Hashimoto's thyroiditis, however, only retained significance after multiple testing correction in the log-additive model (OR?=?1.28, CI?=?1.06-1.54, p-value?=?8.9×10(-3)). The group with Graves' disease also registered a higher frequency of the allele A in TNFA-308 G/A compared with controls both in the dominant (OR?=?1.85, CI?=?1.19-2.87, p-value?=?7.0×10(-3)) and log-additive (OR?=?1.69, CI?=?1.17-2.44, p-value?=?6.6×10(-3)) models. The risk for Hashimoto's thyroiditis and Graves' disease increases with the number of risk alleles (OR for two risk alleles is, respectively, 2.27 and 2.59).ConclusionsThis study reports significant associations of genetic variants in TNFA and IL6 with the risk for AITD, highlighting the relevance of polymorphisms in inflammation-related genes in the etiopathogenesis of AITD.

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RET polymorphisms might be the risk factors for thyroid cancer.

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RET polymorphisms might be the risk factors for thyroid cancer.

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