Cited by 76Neurogenesis and neuroplasticity mechanismsFetal and Pediatric Neurological DisordersDevelopmental Biology and Gene Regulation

Zic Deficiency in the Cortical Marginal Zone and Meninges Results in Cortical Lamination Defects Resembling Those in Type II Lissencephaly

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Inoue, Takashi, Ogawa, Masaharu, Mikoshiba, Katsuhiko, Aruga, Jun·2008·The Journal of Neuroscience

Abstract

The formation of the highly organized cortical structure depends on the production and correct placement of the appropriate number and types of neurons. The Zic family of zinc-finger transcription factors plays essential roles in regulating the proliferation and differentiation of neuronal progenitors in the medial forebrain and the cerebellum. Examination of the expression of Zic genes demonstrated that Zic1,Zic2, and Zic3 were expressed by the progenitor cells in the septum and cortical hem, the sites of generation of the Cajal-Retzius (CR) cells. Immunohistochemical studies have revealed that Zic proteins were abundantly expressed in the meningeal cells and that the majority of the CR cells distributed in the medial and dorsal cortex also expressed Zic proteins in the mid-late embryonic and postnatal cortical marginal zones. During embryonic cortical development,Zic1/Zic3 double-mutant and hypomorphic Zic2 mutant mice showed a reduction in the number of CR cells in the rostral cortex, whereas the cell number remained unaffected in the caudal cortex. These mutants also showed mislocalization of the CR cells and cortical lamination defects, resembling the changes noted in type II (cobblestone) lissencephaly, throughout the brain. In the Zic1/3 mutant, reduced proliferation of the meningeal cells was observed before the thinner and disrupted organization of the pial basement membrane (BM) with reduced expression of the BM components and the meningeal cell-derived secretory factor. These defects correlated with the changes in the end feet morphology of the radial glial cells. These findings indicate that the Zic genes play critical roles in cortical development through regulating the proliferation of meningeal cells and the pial BM assembly.

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Crossref · 10.1523/jneurosci.5735-07.2008

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  • In human, ZIC1 and CALB2 expression do not overlap in MZ, unlike mouse where Zic1 is expressed by virtually all Cajal-Retzius neurons.

    “However, while mouse Zic1 is expressed by virtually all Cajal-Retzius neurons34, our results indicate that this is not true in human as ZIC1 and CALB2 expression do not overlap in MZ (Figs. 1b and 2e).”

    From Transcriptional landscape of the prenatal human brain (2014) · cites this paper as [34]

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Authors
Inoue, T., Ogawa, M., Mikoshiba, K., & Aruga, J.
Affiliations
RIKEN Center for Brain Science (JP)
Corresponding author
Aruga, Jun
Venue
The Journal of Neuroscience
Published
2008-04-30
Volume
28
Issue
18
Pages
4712-4725
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W2004524848
Cited by
76
References
68
Citations by year
2026: 3 · 2025: 1 · 2024: 2 · 2023: 2 · 2022: 3 · 2021: 2 · 2020: 8 · 2019: 5 · 2018: 9 · 2017: 1 · 2016: 2 · 2015: 5 · 2014: 3 · 2013: 9 · 2012: 4
FWCI
1.73
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion, cc-by-nc-sa)
  • Europe PMC (PubMed Central) (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • RIKEN
  • RIKEN Brain Science Institute
Topics
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Health Sciences › Medicine › Pediatrics, Perinatology and Child Health › Fetal and Pediatric Neurological Disorders
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
Keywords
ZIC1, ZIC2, ZIC3, cortical lamination, cobblestone lissencephaly, Cajal-Retzius cells, radial glia, cortical development, zinc finger transcription factor
MeSH terms
Animals, Basement Membrane, Bromodeoxyuridine, Cerebral Cortex, Embryo, Mammalian, Fibroblasts, Meninges, Mice, Inbred BALB C, Mice, Inbred C57BL, Mice, Mutant Strains, Nerve Tissue Proteins, Transcription Factors, Gene Expression Regulation, Developmental, Mice, Cobblestone Lissencephaly

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