Epigenetic restriction of embryonic cell lineage fate by methylation of Elf5.
Epigenetic restriction of embryonic cell lineage fate by methylation of Elf5.
复制标题
DOI:
10.1038/ncb1786
复制
发表时间:
2008-11
影响因子:
21.3
通讯作者:
Hemberger, Myriam
中科院分区:
文献类型:
--
作者:
Ng, Ray Kit;Dean, Wendy;Dawson, Claire;Lucifero, Diana;Madeja, Zofia;Reik, Wolf;Hemberger, Myriam
Mouse ES cells can differentiate into all three germ layers of the embryo but are generally excluded from the trophoblast lineage. Here we show that ES cells deficient in DNA methylation can differentiate efficiently into trophoblast derivatives. In a genome-wide screen we identify the transcription factor Elf5 as methylated and repressed in ES cells, and hypomethylated and expressed in TS and methylation-deficient ES cells. Elf5 creates a positive feedback loop with TS cell determinants Cdx2 and Eomes that is restricted to the trophoblast lineage by epigenetic regulation of Elf5. Importantly, the late-acting function of Elf5 allows initial plasticity and regulation in the early blastocyst. Thus, Elf5 acts downstream of initial lineage determination as a gatekeeper to reinforce commitment to the trophoblast lineage, or to abort this pathway in epiblast cells. This epigenetic restriction of cell lineage fate provides a molecular mechanism for Waddington’s concept of canalization of developmental pathways.
登录
查看更多内容
影响因子:
2.7
作者:
FLEMING, TP
通讯作者:
FLEMING, TP
影响因子:
2.5
作者:
Metzger, David E.;Xu, Yan;Shannon, John M.
通讯作者:
Shannon, John M.
影响因子:
2.6
作者:
Haffner-Krausz, R;Gorivodsky, M;Lonai, P
通讯作者:
Lonai, P
影响因子:
64.5
作者:
Niwa, H;Toyooka, T;Rossant, J
通讯作者:
Rossant, J
影响因子:
64.8
作者:
CHAPMAN, V;FORRESTER, L;ROSSANT, J
通讯作者:
ROSSANT, J