期刊
NEURON
卷 101, 期 6, 页码 1117-+出版社
CELL PRESS
DOI: 10.1016/j.neuron.2019.01.007
关键词
-
资金
- National Key Research and Development Program of China [2018YFA0108000]
- National Natural Science Foundation of China [31421091, 31471038, 31872763]
Neural progenitors with distinct potential to generate progeny are associated with a spatially distinct microenvironment. Neocortical intermediate progenitors (IPs) in the subventricular zone (SVZ) of the developing brain generate neurons for all cortical layers and are essential for cortical expansion. Here, we show that spatial control of IP positioning is essential for neocortical development. We demonstrate that HDAC1 and HDAC2 regulate the spatial positioning of IPs to form the SVZ. Developmental stage-specific depletion of both HDAC1 and HDAC2 in radial glial progenitors results in mispositioning of IPs at the ventricular surface, where they divide and differentiate into neurons, thereby leading to the cortical malformation. We further identified the proneural gene Neurogenin2 as a key target of HDAC1 and HDAC2 for regulating IP positioning. Our results demonstrate the importance of the spatial positioning of neural progenitors in cortical development and reveal a mechanism underlying the establishment of the SVZ microenvironment.
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