Prospective identification and purification of quiescent adult neural stem cells from their in vivo niche.
Prospective identification and purification of quiescent adult neural stem cells from their in vivo niche.
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DOI:
10.1016/j.neuron.2014.02.039
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发表时间:
2014-05-07
期刊:
影响因子:
16.2
通讯作者:
Doetsch F
中科院分区:
文献类型:
--
作者:
Codega P;Silva-Vargas V;Paul A;Maldonado-Soto AR;Deleo AM;Pastrana E;Doetsch F
Adult neurogenic niches harbor quiescent neural stem cells, however their in vivo identity has been elusive. Here, we prospectively isolate GFAP+CD133+ (quiescent neural stem cells, qNSCs) and GFAP+CD133+EGFR+ (activated neural stem cells, aNSCs) from the adult ventricular-subventricular zone. aNSCs are rapidly cycling, highly neurogenic in vivo and enriched in colony-forming cells in vitro. In contrast, qNSCs are largely dormant in vivo, generate olfactory bulb interneurons with slower kinetics, and only rarely form colonies in vitro. Moreover, qNSCs are Nestin-negative, a marker widely used for neural stem cells. Upon activation, qNSCs upregulate Nestin and EGFR, and become highly proliferative. Notably, qNSCs and aNSCs can interconvert in vitro. Transcriptome analysis reveals that qNSCs share features with quiescent stem cells from other organs. Finally, small molecule screening identified the GPCR ligands, S1P and PGD2, as factors that actively maintain the quiescent state of qNSCs.
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DOI:
10.1073/pnas.0710000105
发表时间:
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影响因子:
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