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NCAM regulates temporal specification of neural progenitor cells via profilin2 during corticogenesis

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Huang, Rui, Yuan, De-Juan, Li, Shao, Liang, Xue-Song, Gao, Yue, Lan, Xiao-Yan, Qin, Hua Min, Ma, Yu-Fang, Xu, Guang-Yin, Schachner, Melitta, Sytnyk, Vladimir, Boltze, Johannes, Ma, Quan-Hong and Li, Shen (2020) NCAM regulates temporal specification of neural progenitor cells via profilin2 during corticogenesis. Journal of Cell Biology, 219 (1). e201902164. doi:10.1083/jcb.201902164

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Official URL: https://doi.org/10.1083/jcb.201902164

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Abstract

The development of cerebral cortex requires spatially and temporally orchestrated proliferation, migration, and differentiation of neural progenitor cells (NPCs). The molecular mechanisms underlying cortical development are, however, not fully understood. The neural cell adhesion molecule (NCAM) has been suggested to play a role in corticogenesis. Here we show that NCAM is dynamically expressed in the developing cortex. NCAM expression in NPCs is highest in the neurogenic period and declines during the gliogenic period. In mice bearing an NPC-specific NCAM deletion, proliferation of NPCs is reduced, and production of cortical neurons is delayed, while formation of cortical glia is advanced. Mechanistically, NCAM enhances actin polymerization in NPCs by interacting with actin-associated protein profilin2. NCAM-dependent regulation of NPCs is blocked by mutations in the profilin2 binding site. Thus, NCAM plays an essential role in NPC proliferation and fate decision during cortical development by regulating profilin2-dependent actin polymerization.

Item Type: Journal Article
Subjects: Q Science > QP Physiology
Divisions: Faculty of Science > Life Sciences (2010- )
Library of Congress Subject Headings (LCSH): Molecular neurobiology, Neurochemistry , Stem cells, Cerebral cortex, Actin
Journal or Publication Title: Journal of Cell Biology
Publisher: Rockefeller University Press
ISSN: 0021-9525
Official Date: 6 January 2020
Dates:
DateEvent
6 January 2020Published
9 December 2019Available
21 October 2019Accepted
Volume: 219
Number: 1
Article Number: e201902164
DOI: 10.1083/jcb.201902164
Status: Peer Reviewed
Publication Status: Published
Publisher Statement: ©2020 Huang et al. Originally published in Journal of Cell Biology. https://doi.org/10.1083/jcb.201902164
Access rights to Published version: Restricted or Subscription Access
Copyright Holders: © 2019 Huang et al.
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