A Genetic Polymorphism at miR-526b Binding- Site in the lincRNA- NR_ 024015 Exon Confers Risk of Esophageal Squamous Cell Carcinoma in a Population of North China
机构:[1]1Laboratory of Pathology, Hebei Cancer Institute, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China临床科室河北省肿瘤研究所河北医科大学第四医院[2]Department of Radiation Oncology, Cangzhou Central Hospital, Cangzhou, Hebei, China
Esophageal squamous cell carcinoma (ESCC) may be caused by a combination of environmental factors and genetic variants. The present study was to evaluate the association between haplotype-tagging SNPs (htSNPs) of lincRNA-NR_024015 and the risk of ESCC. We selected htSNPs across the whole 1469bp lincRNA-NR_024015 locus and 2kb upstream as well as 2kb downstream regions of the gene and conducted a case-control study in 581 ESCC cases and 677 healthy controls to test the effects of functional lincRNA-NR_024015 htSNPs on ESCC susceptibility. Of the seven potential functional htSNPs, rs8506 AA genotype was found to be associated with increased risk of ESCC. Further stratification analysis showed that the risk effect was more pronounced in male patients and patients with TNM stage III and IV. LincRNA-NR_024015 was predominantly expressed in cytoplasm of esophageal cancer cells. The expression level of lincRNA-NR_024015 in ESCC tumor tissues was significantly higher than that in corresponding normal tissues and rs8506 genotype has a genotype-specific effect on lincRNA-NR_024015 expression. Furthermore, rs8506 G to A variant might influence lincRNA-NR_024015 expression and function by disrupting the binding of hsa-miR-526b to the site. High expression level of lincRNA-NR_024015 and rs8506 A allele were associated with poor ESCC patients' survival. These findings indicate that functional polymorphism rs8506 G>A in lincRNA-NR_024015 exon may be a genetic modifier for the development of ESCC and lincRNA-NR_024015 may be a useful marker for the prediction of the biological behavior of ESCC. (C) 2016 Wiley Periodicals, Inc.
基金:
This research was supported
by the National Natural Science Foundation (No.
81472335 and No. 81572441), Natural Science
Foundation of Hebei Province (No. H2015206196
and No. H2015206420).
第一作者机构:[1]1Laboratory of Pathology, Hebei Cancer Institute, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China[2]Department of Radiation Oncology, Cangzhou Central Hospital, Cangzhou, Hebei, China
通讯作者:
通讯机构:[1]1Laboratory of Pathology, Hebei Cancer Institute, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China[*1]Laboratory of Pathology, Hebei Cancer Institute, The fourth Hospital of Hebei Medical University, Jiankang Road 12, Shijiazhuang 050011, Hebei, China.
推荐引用方式(GB/T 7714):
Han Lijie,Liu Shengnan,Liang Jia,et al.A Genetic Polymorphism at miR-526b Binding- Site in the lincRNA- NR_ 024015 Exon Confers Risk of Esophageal Squamous Cell Carcinoma in a Population of North China[J].MOLECULAR CARCINOGENESIS.2017,56(3):960-971.doi:10.1002/mc.22549.
APA:
Han, Lijie,Liu, Shengnan,Liang, Jia,Guo, Yanli,Shen, Supeng...&Guo, Wei.(2017).A Genetic Polymorphism at miR-526b Binding- Site in the lincRNA- NR_ 024015 Exon Confers Risk of Esophageal Squamous Cell Carcinoma in a Population of North China.MOLECULAR CARCINOGENESIS,56,(3)
MLA:
Han, Lijie,et al."A Genetic Polymorphism at miR-526b Binding- Site in the lincRNA- NR_ 024015 Exon Confers Risk of Esophageal Squamous Cell Carcinoma in a Population of North China".MOLECULAR CARCINOGENESIS 56..3(2017):960-971