Association between the rs2910164 Polymorphism in Pre-Mir-146a Sequence and Thyroid Carcinogenesis

نویسندگان

  • Wen-Jun Wei
  • Yu-Long Wang
  • Duan-Shu Li
  • Yu Wang
  • Xiao-Feng Wang
  • Yong-Xue Zhu
  • Ya-jun Yang
  • Zhuo-Ying Wang
  • Yan-yun Ma
  • Yi Wu
  • Li Jin
  • Qing-Hai Ji
  • Jiu-Cun Wang
چکیده

BACKGROUND Rs2910164, a Single nucleotide polymorphism (SNP) located in the precursor microRNA sequence of miR-146a, is the only MicroRNA sequence SNP studied in papillary thyroid cancer (PTC). Association studies had been performed in US and UK-Northern European populations, but results were inconsistence. This study evaluated the association between rs2910164 and the risk of PTC as well as benign thyroid tumor (BN), and examined the clinicopathological characteristics of PTC and BN for different genotypes. METHODS This case-control study genotyped rs2910164 in 753 PTCs, 484 BNs and 760 controls in a Chinese Han population. Clinicopathological and genetic data were collected and compared. Multivariate logistic regression was performed to calculate adjusted odds ratios (ORs). RESULTS There were no differences in rs2910164 genotype distributions between the three groups. PTC cases with three genotypes (CC, CG, GG) had similar clinicopathological characteristics except the existence of "para-cancer" BN (PTC/BN, P = 0.006). PTC/BN patients were older (P = 0.009), and had smaller cancer lesions (P<0.001), lower serum thyrotropin levels (1.82±1.42 vs. 2.21±1.74, P = 0.04), and lower rates of level VI lymph node metastasis (20.8% vs. 52.7%, P<0.001) and lateral neck lymph node metastasis (11.5% vs. 23.0%, P = 0.011) compared with PTC only. Then we supposed a possible progression from BN to PTC which may involve rs2910164 in and performed a multivariate logistic regression analysis of PTC/BN and BN cases to determine risk factors of this progression. Results showed that the rs2910164 GG homozygote (OR = 2.25, 95% CI 1.22-4.14, P = 0.01) was the only risk factor in this study. CONCLUSION Rs2910164 was not associated with increased risk of PTC and BN in Chinese patients, but may play a latent role in the transformation from BN to PTC.

برای دانلود رایگان متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید

ثبت نام

اگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید

منابع مشابه

ASSOCIATION STUDY OF MIR-146A RS2910164 AND RS57095329 POLYMORPHISMS WITH RISK OF BEHCET’S DISEASE

Background & Aims: Behcet's disease (BD) is an autoimmune disease that usually occurs with oral, genital and ocular ulcers. The cause of this disease is unknown and environmental, genetic and immunological factors contribute to its development. In the present study, the relation between rs2910164 and rs57095329 polymorphisms of miR146a gene with the potential for BD was investigated in Iranian ...

متن کامل

Are pre-miR-146a and PTTG1 associated with papillary thyroid cancer?

Papillary thyroid carcinoma (PTC) is the most common endocrine malignancy, with a steadily increasing incidence in the last few decades worldwide. The predisposition to developing this carcinoma by the heterozygous state of rs2910164 within the precursor of the miR-146a has been reported, but recently not confirmed. Interestingly, on the same chromosome, almost 50 kb separate the pre-miR-146a f...

متن کامل

The association between rs2910164 in miR-146a and hepatocellular carcinoma risk: a case-control study

Several studies reported the association between the miR-146a rs2910164 polymorphism and Hepatocellular Carcinoma (HCC) risk, but the results were controversial. Thus, we did a case-control study to determine the association between miR-146a rs2910164 polymorphism and HCC risk. This study included 188 HCC cases and 186 controls. HCC was diagnosed by liver biopsy. Healthy individuals undergoing ...

متن کامل

Association of Pre-miR-146a rs2910164 Polymorphism with Papillary Thyroid Cancer

The incidence rate of papillary thyroid cancer (PTC) has increased over the past decades, but the pathogenesis remains unclear. rs2910164, located in pre-miR-146a, has been studied in PTCs with different ethnicity, but the results were inconsistent. Here we evaluate the association between rs2910164 polymorphism and PTC and investigate the effect of this polymorphism on patients' clinicopatholo...

متن کامل

Meta-analysis confirms that a common G/C variant in the pre-miR-146a gene contributes to cancer susceptibility and that ethnicity, gender and smoking status are risk factors.

Evidence has shown that miR-146a is involved in carcinogenesis, and a common G/C variant (rs2910164) in the pre-miR-146a gene has been associated with various types of cancer. We summarized the data from 22 published case-control studies on the association between rs2910164 and cancer risk and performed subgroup analyses by ethnicity, gender and smoking status. We found a significant asso...

متن کامل

ذخیره در منابع من


  با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید

عنوان ژورنال:

دوره 8  شماره 

صفحات  -

تاریخ انتشار 2013