Global transcriptional and translational repression in human-embryonic-stem-cell-derived Rett syndrome neurons.
Global transcriptional and translational repression in human-embryonic-stem-cell-derived Rett syndrome neurons.
复制标题
人胚胎干细胞来源的雷特综合征神经元的全局转录和翻译抑制。
DOI:
10.1016/j.stem.2013.09.001
复制
发表时间:
2013-10-03
期刊:
影响因子:
23.9
通讯作者:
Jaenisch, Rudolf
中科院分区:
文献类型:
--
作者:
Li, Yun;Wang, Haoyi;Muffat, Julien;Cheng, Albert W.;Orlando, David A.;Loven, Jakob;Kwok, Show-ming;Feldman, Danielle A.;Bateup, Helen S.;Gao, Qing;Hockemeyer, Dirk;Mitalipova, Maisam;Lewis, Caroline A.;Vander Heiden, Matthew G.;Sur, Mriganka;Young, Richard A.;Jaenisch, Rudolf
Rett Syndrome (RTT) is caused by mutations of MECP2, a methyl CpG binding protein thought to act as a global transcriptional repressor. Here we show, using an isogenic human embryonic stem cell model of RTT, that MECP2 mutant neurons display key molecular and cellular features of this disorder. Unbiased global gene expression analyses demonstrate that MECP2 functions as global gene activator in neurons but not in neural precursors. Decreased transcription in neurons was coupled with a significant reduction in nascent protein synthesis and lack of MECP2 was manifested as a severe defect in the activity of the AKT/mTOR pathway. Lack of MECP2 also leads to impaired mitochondrial function in mutant neurons. Activation of AKT/mTOR signaling by exogenous growth factors or by depleting PTEN boosted protein synthesis and ameliorated disease phenotypes in mutant neurons. Our findings indicate a vital function for MECP2 in maintaining active gene transcription in human neuronal cells.
登录
查看更多内容
影响因子:
3.5
作者:
Ben-Shachar S;Chahrour M;Thaller C;Shaw CA;Zoghbi HY
通讯作者:
Zoghbi HY
影响因子:
16.2
作者:
Chang, QA;Khare, G;Jaenisch, R
通讯作者:
Jaenisch, R
影响因子:
17.7
作者:
Akbarian, S
通讯作者:
Akbarian, S
影响因子:
46.9
作者:
Chambers, Stuart M.;Fasano, Christopher A.;Papapetrou, Eirini P.;Tomishima, Mark;Sadelain, Michel;Studer, Lorenz
通讯作者:
Studer, Lorenz
影响因子:
--
作者:
Jordan, ChaRandle;Li, Hong Hua;Francke, Uta
通讯作者:
Francke, Uta