A novel oncogenic enhancer of estrogen receptor-positive breast cancer.
A novel oncogenic enhancer of estrogen receptor-positive breast cancer.
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雌激素受体阳性乳腺癌的新型致癌增强剂
DOI:
10.1016/j.omtn.2022.08.029
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发表时间:
2022-09-13
期刊:
影响因子:
--
通讯作者:
Lu, Wanliang
中科院分区:
文献类型:
--
作者:
Bao, Chunjie;Duan, Jialun;Xie, Ying;Liu, Yixuan;Li, Peishan;Li, Jianwei;Zhao, Huihui;Guo, Haitao;Men, Yanchen;Ren, Yuxin;Xu, Jiarui;Wang, Guiling;Lu, Wanliang
Estrogen receptor-positive (ER+) breast cancer accounts for the majority of breast cancers diagnosed, and nearly 20% of patients do not respond to endocrine therapy. The pathogenesis of ER+ breast cancer has not been well elucidated. The enhancer is a cis-regulatory element that promotes gene transcription and plays an important role in the spatiotemporal expression of cellular genes. Nevertheless, the oncogenic enhancer and its role in the occurrence and progression of cancer remain unclear. Here, we report a novel oncogenic enhancer (named αEmyc) for c-Myc and reveal its activation mechanism in ER+ breast cancer. The results demonstrated that αEmyc enhanced the transcription of downstream genes more than 20-fold. The deletion of the 7-bp region (GGTTGCA) in αEmyc significantly downregulated the expression of c-Myc, resulting in cell nuclear changes, cell-cycle arrest, cell apoptosis, and finally, remarkable inhibition of cell proliferation. In conclusion, the present study discovers a novel oncogenic enhancer αEmyc (801 base pairs [bp], at Chr8: 127668529–127669329) and offers a remarkable core enhancer target (GGTTGCA) of αEmyc for gene therapy of ER+ breast cancer. Here, we report a novel oncogenic enhancer αEmyc, reveal its specific function and activation mechanism in promoting the proliferation of estrogen receptor-positive (ER+) breast cancer, and provide a remarkable core enhancer target (GGTTGCA) of αEmyc for gene therapy of ER+ breast cancer.
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影响因子:
5.5
作者:
Fallah Y;Brundage J;Allegakoen P;Shajahan-Haq AN
通讯作者:
Shajahan-Haq AN
影响因子:
64.5
作者:
Hnisz D;Abraham BJ;Lee TI;Lau A;Saint-André V;Sigova AA;Hoke HA;Young RA
通讯作者:
Young RA
DOI:
10.1073/pnas.0910668107
发表时间:
2010-05-25
影响因子:
11.1
作者:
Ahmadiyeh, Nasim;Pomerantz, Mark M.;Freedman, Matthew L.
通讯作者:
Freedman, Matthew L.
DOI:
10.1158/1078-0432.ccr-10-2567
发表时间:
2011-04-01
期刊:
Clinical cancer research : an official journal of the American Association for Cancer Research
影响因子:
--
作者:
Miller TW;Balko JM;Ghazoui Z;Dunbier A;Anderson H;Dowsett M;González-Angulo AM;Mills GB;Miller WR;Wu H;Shyr Y;Arteaga CL
通讯作者:
Arteaga CL
影响因子:
6
作者:
Belloucif Y;Lobry C
通讯作者:
Lobry C