TRIM28 repression of retrotransposon-based enhancers is necessary to preserve transcriptional dynamics in embryonic stem cells.
TRIM28 repression of retrotransposon-based enhancers is necessary to preserve transcriptional dynamics in embryonic stem cells.
复制标题
DOI:
10.1101/gr.147678.112
复制
发表时间:
2013-03
期刊:
影响因子:
7
通讯作者:
Trono D
中科院分区:
文献类型:
--
作者:
Rowe HM;Kapopoulou A;Corsinotti A;Fasching L;Macfarlan TS;Tarabay Y;Viville S;Jakobsson J;Pfaff SL;Trono D
TRIM28 is critical for the silencing of endogenous retroviruses (ERVs) in embryonic stem (ES) cells. Here, we reveal that an essential impact of this process is the protection of cellular gene expression in early embryos from perturbation by cis-acting activators contained within these retroelements. In TRIM28-depleted ES cells, repressive chromatin marks at ERVs are replaced by histone modifications typical of active enhancers, stimulating transcription of nearby cellular genes, notably those harboring bivalent promoters. Correspondingly, ERV-derived sequences can repress or enhance expression from an adjacent promoter in transgenic embryos depending on their TRIM28 sensitivity in ES cells. TRIM28-mediated control of ERVs is therefore crucial not just to prevent retrotransposition, but more broadly to safeguard the transcriptional dynamics of early embryos.
登录
查看更多内容
影响因子:
10.5
作者:
Friedman, JR;Fredericks, WJ;Rauscher, FJ
通讯作者:
Rauscher, FJ
影响因子:
5.3
作者:
Krebs, Christopher J.;Schultz, David C.;Robins, Diane M.
通讯作者:
Robins, Diane M.
影响因子:
30.8
作者:
Kunarso, Galih;Chia, Na-Yu;Bourque, Guillaume
通讯作者:
Bourque, Guillaume
影响因子:
4.5
作者:
Emerson RO;Thomas JH
通讯作者:
Thomas JH
DOI:
10.1126/science.1193995
发表时间:
2010-07-09
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Guenther MG;Young RA
通讯作者:
Young RA