The nucleotide polymorphisms within the Epstein–Barr virus C and Q promoters from nasopharyngeal carcinoma affect transcriptional activity in vitro
The nucleotide polymorphisms within the Epstein–Barr virus C and Q promoters from nasopharyngeal carcinoma affect transcriptional activity in vitro
复制标题
鼻咽癌 Epstein-Barr 病毒 C 和 Q 启动子内的核苷酸多态性影响体外转录活性
DOI:
10.1007/s00405-011-1862-x
复制
发表时间:
2012
影响因子:
2.6
通讯作者:
D. Xie
中科院分区:
文献类型:
--
作者:
Feng;Xian;Wen;Ying;Yu;Y. Liao;C. Shao;Y. Zong;S. Mai;D. Xie
Epstein–Barr virus (EBV) is a ubiquitous human gamma herpesvirus that is associated with Burkitt’s lymphoma (BL), gastric carcinoma, nasopharyngeal carcinoma (NPC), and NK/T-cell lymphoma. Two viral promoters, Cp and Qp, are important for EBV latent infection. The latency Cp, which is used in primary infection, drives expression of the full spectrum of EBV nuclear antigens. Qp is active in EBV-associated tumors and drives the latency I/II expression pattern. In this study, we determined nucleotides polymorphisms in the Cp and Qp promoter regions in peripheral blood mononuclear cells (PBMCs) from Cantonese healthy carriers and in biopsies of NPC, nasal NK/T lymphoma, BL, and gastric carcinoma. The sequence changes of −12G>T and +69 C>T in Cp and −197 G>A and +1 G>C in Qp were frequently identified in NPC. Transient transfection studies using luciferase gene reporters revealed a significant reduction (57.11%) in gene expression from the Cp +69T variant and increased expression (43.5%) from the Qp +1C variant compared to the prototype, suggesting that these sequence variations affect promoter activity. Our results indicate that the nucleotides polymorphisms in Cp and Qp occur frequently in NPC and might contribute to the oncogenesis of EBV.
登录
查看更多内容
DOI:
10.1073/pnas.91.16.7568
发表时间:
1994-08-02
影响因子:
11.1
作者:
GROSSMAN, SR;JOHANNSEN, E;KIEFF, E
通讯作者:
KIEFF, E
影响因子:
10.5
作者:
GREGOR, PD;SAWADOGO, M;ROEDER, RG
通讯作者:
ROEDER, RG
DOI:
10.1073/pnas.0307808100
发表时间:
2004
期刊:
Proceedings of the National Academy of Sciences of the United States of America.
影响因子:
--
作者:
Peng,Chih-Wen;Xue,Yong;Zhao,Bo;Johannsen,Eric;Kieff,Elliott;Harada,Shizuko
通讯作者:
Harada,Shizuko
DOI:
10.1073/pnas.92.18.8293
发表时间:
1995
影响因子:
11.1
作者:
Bulfone-Paus,S;Dempsey,LA;Maizels,N
通讯作者:
Maizels,N
影响因子:
6
作者:
Tao, Q;Swinnen, LJ;Ambinder, RF
通讯作者:
Ambinder, RF