Cited by 49Axon Guidance and Neuronal SignalingNeurogenesis and neuroplasticity mechanismsCell death mechanisms and regulation

Laminar and Areal Expression of Unc5d and Its Role in Cortical Cell Survival

Takemoto, Makoto, Hattori, Yuki, Zhao, Hong, Sato, Haruka, Tamada, Atsushi, Sasaki, Shinji, Nakajima, Kazunori, Yamamoto, Nobuhiko·2011·Cerebral Cortex

Abstract

The UNC-5 family of netrin receptors is known to regulate axon guidance, cell migration, and cell survival. We have previously demonstrated that unc5d, one of the UNC-5 family member genes, is specifically expressed in layer 4 of the developing rat neocortex (Zhong Y, Takemoto M, Fukuda T, Hattori Y, Murakami F, Nakajima D, Nakayama M, Yamamoto N. 2004. Identification of the genes that are expressed in the upper layers of the neocortex. Cereb Cortex. 14:1144-1152). However, the role of UNC5D in cortical development is still unknown. In this study, we revealed that unc5d was highly expressed in the primary sensory areas of the mouse neocortex at around postnatal day 7. Netrin-4 was also found to be predominantly expressed in layer 4 of the sensory cortex and sensory thalamic nuclei. Cell surface binding assay showed that netrin-4 protein bound to UNC5D-expressing cells. An in vitro study further demonstrated that cell death of unc5d-expressing layer 4 cells was reduced by exogenous application of netrin-4 protein, whereas UNC5D is not sufficient to mediate the effect of netrin-4 in deep layer cells. Taken together, these results suggest that UNC5D is primarily expressed by layer 4 cells in the primary sensory areas of the developing neocortex and may mediate the effect of netrin-4 on cortical cell survival in a lamina-specific manner.

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Crossref · 10.1093/cercor/bhq265

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Authors
Takemoto, M., Hattori, Y., Zhao, H., Sato, H., Tamada, A., Sasaki, S., Nakajima, K., & Yamamoto, N.
Affiliations
  • The University of Osaka (JP)
  • RIKEN Center for Brain Science (JP)
  • Keio University (JP)
Venue
Cerebral Cortex
Published
2011-01-07
Volume
21
Issue
8
Pages
1925-1934
ISSN
  • 1047-3211 (ISSN-L)
  • 1460-2199
OpenAlex
W2126513997
Cited by
49
References
58
Citations by year
2026: 2 · 2025: 4 · 2023: 3 · 2022: 5 · 2021: 5 · 2020: 1 · 2019: 1 · 2018: 2 · 2017: 5 · 2016: 2 · 2014: 6 · 2013: 2 · 2012: 6
FWCI
2.52
Type
journal article
Language
en
Open access
closed
Locations
  • Cerebral Cortex (publishedVersion)
  • PubMed (publishedVersion)
Funders
Japan Society for the Promotion of Science (22240041)
Topics
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Axon Guidance and Neuronal Signaling
  • Life Sciences › Neuroscience › Developmental Neuroscience › Neurogenesis and neuroplasticity mechanisms
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Cell death mechanisms and regulation
Keywords
UNC5D, netrin-4, netrin receptors, neocortex development, layer 4, primary sensory cortex, sensory thalamus, neuronal cell death, axon guidance
MeSH terms
Netrins, Animals, Animals, Newborn, Cell Survival, Cells, Cultured, Female, Mice, Inbred C57BL, Mice, Inbred ICR, Nerve Growth Factors, Neural Pathways, Neurons, Pregnancy, Receptors, Cell Surface, Thalamus, Rats, Sprague-Dawley, Neocortex, Mice, Rats

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