Nac1 promotes self-renewal of embryonic stem cells through direct transcriptional regulation of c-Myc.

Nac1 promotes self-renewal of embryonic stem cells through direct transcriptional regulation of c-Myc.
复制标题

Nac1通过c-Myc的直接转录调节促进胚胎干细胞的自我更新

DOI:
10.18632/oncotarget.17744
复制
发表时间:
2017-07-18
期刊:
影响因子:
--
通讯作者:
Jian R
Jian R
中科院分区:
其他
文献类型:
--
作者:
Ruan Y;He J;Wu W;He P;Tian Y;Xiao L;Liu G;Wang J;Cheng Y;Zhang S;Yang Y;Xiong J;Zhao K;Wan Y;Huang H;Zhang J;Jian R

文献摘要

参考文献

被引文献

相似文献

胚胎干细胞(ESCs)的多潜能转录网络由不同的功能单位组成,包括核心单位和Myc单位。希望对细胞功能和网络因子的相互联系的剖析将有助于我们对胚胎干细胞和癌症生物学的理解。蛋白质组学和基因组学方法已经确定Nac1是核心多能性网络的成员。然而,以前的研究主要集中在Nac1在精神运动刺激反应和癌症发病机制中的作用。在这项研究中,我们报道了Nac1是一种自我更新促进因子,但不是维持ESCs多能性所必需的。在ESCs中,Nac1功能的丧失导致增殖率降低和分化倾向增强。在缺乏白血病抑制因子(LIF)的情况下,NAC1过表达促进ESC的增殖并延迟ESC的分化。此外,我们还证明了Nac1直接与c-Myc启动子结合并调节c-Myc的转录。研究还表明,Nac1在促进ESC自我更新中的作用可能部分是通过c-Myc介导的。这些发现建立了核心网络和以c-Myc为中心的网络之间的功能联系,并为ESCs和癌症中的干性调节机制提供了新的见解。
The pluripotency transcriptional network in embryonic stem cells (ESCs) is composed of distinct functional units including the core and Myc units. It is hoped that dissection of the cellular functions and interconnections of network factors will aid our understanding of ESC and cancer biology. Proteomic and genomic approaches have identified Nac1 as a member of the core pluripotency network. However, previous studies have predominantly focused on the role of Nac1 in psychomotor stimulant response and cancer pathogenesis. In this study, we report that Nac1 is a self-renewal promoting factor, but is not required for maintaining pluripotency of ESCs. Loss of function of Nac1 in ESCs results in a reduced proliferation rate and an enhanced differentiation propensity. Nac1 overexpression promotes ESC proliferation and delays ESC differentiation in the absence of leukemia inhibitory factor (LIF). Furthermore, we demonstrated that Nac1 directly binds to the c-Myc promoter and regulates c-Myc transcription. The study also revealed that the function of Nac1 in promoting ESC self-renewal appears to be partially mediated by c-Myc. These findings establish a functional link between the core and c-Myc-centered networks and provide new insights into mechanisms of stemness regulation in ESCs and cancer.
DOI: 10.1016/j.cell.2010.09.010
发表时间: 2010-10-15
期刊: Cell
影响因子: 64.5
作者:
Kim J;Woo AJ;Chu J;Snow JW;Fujiwara Y;Kim CG;Cantor AB;Orkin SH
通讯作者: Orkin SH
DOI: 10.1016/j.stem.2008.07.027
发表时间: 2008-10-09
期刊: Cell stem cell
影响因子: 23.9
作者:
Hayashi K;de Sousa Lopes SMC;Tang F;Lao K;Surani MA
通讯作者: Surani MA
通过调节 PD0325901 诱导的转录因子和 MicroRNA 表达维持 J1 小鼠胚胎干细胞的自我更新和多能性
DOI: 10.1155/2016/1792573
发表时间: 2016
影响因子: 4.3
作者:
Ai Z;Shao J;Shi X;Yu M;Wu Y;Du J;Zhang Y;Guo Z
通讯作者: Guo Z
DOI: 10.1101/cshperspect.a014381
发表时间: 2013-12-01
影响因子: 5.4
作者:
Chappell, James;Dalton, Stephen
通讯作者: Dalton, Stephen
DOI: 10.1158/1078-0432.ccr-08-2134
发表时间: 2009-02-01
影响因子: 11.5
作者:
Ishibashi, Masako;Nakayama, Kentaro;Miyazaki, Kohji
通讯作者: Miyazaki, Kohji