A novel oncogenic enhancer of estrogen receptor-positive breast cancer.

A novel oncogenic enhancer of estrogen receptor-positive breast cancer.
复制标题

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
复制
发表时间:
2022-09-13
期刊:
MOLECULAR THERAPY NUCLEIC ACIDS
影响因子:
--
通讯作者:
Lu, Wanliang
Lu, Wanliang
中科院分区:
其他
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

文献摘要

参考文献

被引文献

相似文献

雌激素受体阳性(ER+)乳腺癌占诊断乳腺癌的大多数,近20%的患者对内分泌治疗无反应。ER+乳腺癌的发病机制尚未得到很好的阐明。增强子是促进基因转录的顺式调控元件,在细胞基因的时空表达中起重要作用。然而,致癌增强子及其在癌症发生和发展中的作用仍不清楚。在此,我们报道了一种新的c-Myc的致癌增强子(命名为αEmyc),并揭示了其在ER+乳腺癌中的激活机制。结果表明,αEmyc可使下游基因的转录水平提高20倍以上。αEmyc基因7 bp区域(GGTTGCA)的缺失可显著下调c-Myc基因的表达,导致细胞核改变、细胞周期阻滞、细胞凋亡,并最终显著抑制细胞增殖。本研究发现了一个新的致癌增强子αEmyc(801 bp,at Chr 8:127668529-127669329),并为ER+乳腺癌的基因治疗提供了一个显著的核心增强子靶点(GGTTGCA)。本文报道了一种新的致癌增强子αEmyc,揭示了其在促进雌激素受体阳性(ER+)乳腺癌细胞增殖中的特异性功能和激活机制,为ER+乳腺癌的基因治疗提供了一个值得关注的αEmyc核心增强子靶点(GGTTGCA)。
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.
DOI: 10.3390/biom7030053
发表时间: 2017-07-11
期刊: Biomolecules
影响因子: 5.5
作者:
Fallah Y;Brundage J;Allegakoen P;Shajahan-Haq AN
通讯作者: Shajahan-Haq AN
DOI: 10.1016/j.cell.2013.09.053
发表时间: 2013-11-07
期刊: Cell
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
DOI: 10.3390/cells11020196
发表时间: 2022-01-07
期刊: Cells
影响因子: 6
作者:
Belloucif Y;Lobry C
通讯作者: Lobry C