miR-124 regulates adult neurogenesis in the subventricular zone stem cell niche.
miR-124 regulates adult neurogenesis in the subventricular zone stem cell niche.
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DOI:
10.1038/nn.2294
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发表时间:
2009-04
影响因子:
25
通讯作者:
Doetsch, Fiona
中科院分区:
文献类型:
--
作者:
Cheng, Li-Chun;Pastrana, Erika;Tavazoie, Masoud;Doetsch, Fiona
The subventricular zone (SVZ) is the largest neurogenic niche in the adult mammalian brain. Here we show that the brain-enriched microRNA miR-124 is an important regulator of the temporal progression of adult neurogenesis in mice. Knockdown of endogenous miR-124 maintains purified SVZ stem cells as dividing precursors, whereas ectopic expression leads to precocious and increased neuron formation. Furthermore, blocking miR-124 function during regeneration leads to hyperplasias followed by a delayed burst of neurogenesis. We identify the SRY-box transcription factor Sox9 to be a physiological target of miR-124 at the transition from transit amplifying cell to neuroblast stage. Sox9 over-expression abolishes neuronal differentiation whereas Sox9 knockdown leads to increased neuron formation. Thus, miR-124 mediated repression of Sox9 is important for progression along the SVZ stem cell lineage to neurons.
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影响因子:
5.2
作者:
Krichevsky, Anna M.;Sonntag, Kai-C.;Kosik, Kenneth S.
通讯作者:
Kosik, Kenneth S.
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:
5.3
作者:
Davidson, TJ;Harel, S;Troy, CM
通讯作者:
Troy, CM
影响因子:
64.5
作者:
Ballas, N;Grunseich, C;Mandel, G
通讯作者:
Mandel, G
影响因子:
64.5
作者:
Lewis, BP;Shih, IH;Burge, CB
通讯作者:
Burge, CB