Cited by 507Neurogenesis and neuroplasticity mechanismsDevelopmental Biology and Gene RegulationFetal and Pediatric Neurological Disorders

A new subtype of progenitor cell in the mouse embryonic neocortex

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Wang, Xiaoqun, Tsai, Jin-Wu, LaMonica, Bridget, Kriegstein, Arnold R·2011·Nature Neuroscience

Abstract

A hallmark of mammalian brain evolution is cortical expansion, which reflects an increase in the number of cortical neurons established by the progenitor cell subtypes present and the number of their neurogenic divisions. Recent studies have revealed a new class of radial glia-like (oRG) progenitor cells in the human brain, which reside in the outer subventricular zone. Expansion of the subventricular zone and appearance of oRG cells may have been essential evolutionary steps leading from lissencephalic to gyrencephalic neocortex. Here we show that oRG-like progenitor cells are present in the mouse embryonic neocortex. They arise from asymmetric divisions of radial glia and undergo self-renewing asymmetric divisions to generate neurons. Moreover, mouse oRG cells undergo mitotic somal translocation whereby centrosome movement into the basal process during interphase precedes nuclear translocation. Our finding of oRG cells in the developing rodent brain fills a gap in our understanding of neocortical expansion.

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Authors
Wang, X., Tsai, J.-W., LaMonica, B., & Kriegstein, A. R.
Affiliations
University of California, San Francisco (US)
Corresponding author
  • Wang, Xiaoqun
  • Kriegstein, Arnold R
Venue
Nature Neuroscience
Published
2011-04-10
Volume
14
Issue
5
Pages
555-561
ISSN
  • 1097-6256 (ISSN-L)
  • 1546-1726
OpenAlex
W2072710787
Cited by
507
References
37
Citations by year
2026: 13 · 2025: 24 · 2024: 26 · 2023: 36 · 2022: 29 · 2021: 39 · 2020: 45 · 2019: 42 · 2018: 27 · 2017: 34 · 2016: 19 · 2015: 34 · 2014: 43 · 2013: 50 · 2012: 26
FWCI
14.56
Type
journal article
Language
en
Open access
Locations
  • Nature Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed Central (acceptedVersion)
Funders
  • Bernard Osher Foundation
  • National Institute of General Medical Sciences (T32GM007618)
  • National Institute of Neurological Disorders and Stroke (R01NS072630, R01NS035710, R01NS021223)
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Fetal and Pediatric Neurological Disorders
Keywords
outer radial glia, embryonic neocortex, asymmetric cell division, cortical expansion, neurogenesis, mouse brain development
MeSH terms
Age Factors, Animals, Cell Differentiation, Cell Division, Cell Movement, Embryo, Mammalian, Luminescent Proteins, Mice, Transgenic, Nerve Tissue Proteins, Neuroglia, Neurons, Organ Culture Techniques, Stem Cells, Time Factors, Centrosome, Gene Expression Regulation, Developmental, Microscopy, Confocal, Neocortex, Green Fluorescent Proteins, Mice

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