Cited by 124Axon Guidance and Neuronal SignalingNeurogenesis and neuroplasticity mechanismsDevelopmental Biology and Gene Regulation

Plexin-B2, But Not Plexin-B1, Critically Modulates Neuronal Migration and Patterning of the Developing Nervous System In Vivo

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Deng, S., Hirschberg, A., Worzfeld, T., Penachioni, J. Y., Korostylev, A., Swiercz, J. M., Vodrazka, P., Mauti, O. +4 more·2007·Journal of Neuroscience

Abstract

Semaphorins and their receptors, plexins, have emerged as important cellular cues regulating key developmental processes. B-type plexins directly regulate the actin cytoskeleton in a variety of cell types. Recently, B-type plexins have been shown to be expressed in striking patterns in the nervous system over critical developmental windows. However, in contrast to the well characterized plexin-A family, the functional role of plexin-B proteins in neural development and organogenesis in vertebrates in vivo is not known. Here, we have elucidated the functional contribution of the two neuronally expressed plexin-B proteins, Plexin-B1 or Plexin-B2, toward the development of the peripheral nervous system and the CNS by generating and analyzing constitutive knock-out mice. The development of the nervous system was found to be normal in mice lacking Plexin-B1, whereas mice lacking Plexin-B2 demonstrated defects in closure of the neural tube and a conspicuous disorganization of the embryonic brain. After analyzing mutant mice, which bypassed neural tube defects, we observed a key requirement for Plexin-B2 in proliferation and migration of granule cell precursors in the developing dentate gyrus, olfactory bulb, and cerebellum. Furthermore, we identified semaphorin 4C as a high-affinity ligand for Plexin-B2 in binding and functional assays. Semaphorin 4C stimulated activation of ErbB-2 and RhoA via Plexin-B2 and enhanced proliferation and migration of granule cell precursors. Semaphorin 4C-induced proliferation of ventricular zone neuroblasts was abrogated in mice lacking Plexin-B2. These genetic and functional analyses reveal a key requirement for Plexin-B2, but not Plexin-B1, in patterning of the vertebrate nervous system in vivo.

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Crossref · 10.1523/jneurosci.5381-06.2007

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Authors
Deng, S., Hirschberg, A., Worzfeld, T., Penachioni, J. Y., Korostylev, A., Swiercz, J. M., Vodrazka, P., Mauti, O., Stoeckli, E. T., Tamagnone, L., Offermanns, S., & Kuner, R.
Affiliations
  • Heidelberg University (DE)
  • University of Turin (IT)
  • University of Zurich (CH)
Venue
Journal of Neuroscience
Published
2007-06-06
Volume
27
Issue
23
Pages
6333-6347
ISSN
  • 0270-6474 (ISSN-L)
  • 1529-2401
OpenAlex
W1977584759
Cited by
121
References
52
Citations by year
2026: 2 · 2025: 4 · 2024: 10 · 2023: 9 · 2022: 11 · 2021: 8 · 2020: 10 · 2019: 6 · 2018: 8 · 2017: 7 · 2016: 4 · 2015: 5 · 2014: 5 · 2013: 1 · 2012: 8
FWCI
2.12
Type
journal article
Language
en
Open access
Locations
  • Journal of Neuroscience (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
  • Zurich Open Repository and Archive (University of Zurich) (acceptedVersion, other-oa)
  • Institutional Research Information System University of Turin (University of Turin) (submittedVersion)
  • Zurich Open Repository and Archive (University of Zurich) (submittedVersion, other-oa)
  • Zurich Open Repository and Archive (University of Zurich)
Funders
  • Deutsche Forschungsgemeinschaft (SFB 488)
  • Universität Heidelberg
  • Ministero dell’Istruzione, dell’Università e della Ricerca (PRIN2005)
  • Associazione Italiana per la Ricerca sul Cancro
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 › Developmental Biology and Gene Regulation
Keywords
Plexin-B2, Plexin-B1, semaphorin receptors, neural tube closure, neural tube defects, neuronal migration, granule cell precursors, dentate gyrus, olfactory bulb, cerebellum, ERBB2, RhoA, actin cytoskeleton, peripheral nervous system development, knockout mice
MeSH terms
Animals, Cell Movement, Chlorocebus aethiops, Cerebellum, Humans, Nerve Tissue Proteins, Nervous System, Receptors, Cell Surface, Prosencephalon, Mice, Knockout, Body Patterning, COS Cells, Organogenesis, Cell Proliferation, Mice

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