MicroRNA cluster miR-17-92 regulates neural stem cell expansion and transition to intermediate progenitors in the developing mouse neocortex.
MicroRNA cluster miR-17-92 regulates neural stem cell expansion and transition to intermediate progenitors in the developing mouse neocortex.
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DOI:
10.1016/j.celrep.2013.03.037
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发表时间:
2013-05-30
期刊:
影响因子:
8.8
通讯作者:
Sun T
中科院分区:
文献类型:
--
作者:
Bian S;Hong J;Li Q;Schebelle L;Pollock A;Knauss JL;Garg V;Sun T
During development of the embryonic neocortex, tightly regulated expansion of neural stem cells (NSCs) and their transition to intermediate progenitors (IPs) are critical for normal cortical formation and function. Molecular mechanisms that regulate NSC expansion and transition remain unclear. Here, we demonstrate that the microRNA (miRNA) miR-17-92 cluster is required for maintaining proper populations of cortical radial glial cells (RGCs) and IPs through repression of Pten and Tbr2 protein. Knockout of miR-17-92 and its paralogs specifically in the developing neocortex restricts NSC proliferation, suppresses RGC expansion, and promotes transition of RGCs to IPs. Moreover, Pten and Tbr2 protectors specifically block silencing activities of endogenous miR-17-92 and control proper numbers of RGCs and IPs in vivo. Our results demonstrate a critical role for miRNAs in promoting NSC proliferation and modulating the cell-fate decision of generating distinct neural progenitors in the developing neocortex.
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影响因子:
2.5
作者:
Kawase-Koga, Yoko;Otaegi, Gaizka;Sun, Tao
通讯作者:
Sun, Tao
DOI:
10.1073/pnas.0308600100
发表时间:
2004-03-02
影响因子:
11.1
作者:
Haubensak, W;Attardo, A;Huttner, WB
通讯作者:
Huttner, WB
影响因子:
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作者:
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通讯作者:
Alvarez-Buylla, Arturo
影响因子:
10.5
作者:
Arnold, Sebastian J.;Huang, Guo-Jen;Groszer, Matthias
通讯作者:
Groszer, Matthias
影响因子:
10.5
作者:
Mu, Ping;Han, Yoon-Chi;Ventura, Andrea
通讯作者:
Ventura, Andrea