Cited by 485Wnt/β-catenin signaling in development and cancerNeuroscience and Neuropharmacology ResearchAxon Guidance and Neuronal Signaling

Wnt signaling through Dishevelled, Rac and JNK regulates dendritic development

Rosso, Silvana B, Sussman, Daniel, Wynshaw-Boris, Anthony, Salinas, Patricia C·2005·Nature Neuroscience

Abstract

Dendritic arborization is required for proper neuronal connectivity. Rho GTPases have been implicated in the regulation of dendrite development. However, the signaling pathways that impinge on these molecular switches remain poorly understood. Here we show that Wnt7b, which is expressed in the mouse hippocampus, increases dendritic branching in cultured hippocampal neurons. This effect is mimicked by the expression of Dishevelled (Dvl) and is blocked by Sfrp1, a secreted Wnt antagonist. Consistent with these findings, hippocampal neurons from mice lacking Dvl1 show reduced dendritic arborization. Activation of the canonical Wnt-Gsk3beta pathway does not affect dendritic development. In contrast, Wnt7b and Dvl activate Rac and JNK in hippocampal neurons. Dominant-negative Rac, dominant-negative JNK or inhibition of JNK blocks Dvl-mediated dendritic growth. These findings demonstrate a new function for the non-canonical Wnt pathway in dendrite development and identify Dvl as a regulator of Rho GTPases and JNK during dendritic morphogenesis.

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Crossref · 10.1038/nn1374

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  • Wnt signaling has multiple roles, including in cell adhesion, dendritic remodeling, and early brain development.

    “However, as clearly summarized by Kalkman (Kalkman, 2012), one must recognize the multiple roles of Wnt signaling, not only in cell adhesion and dendritic remodeling but also in early brain development (Rosso et al., 2005; Salinas and Zou, 2008; Ueda et al., 2008; Wayman et al., 2006; Yu and Malenka, 2003).”

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Authors
Rosso, S. B., Sussman, D., Wynshaw-Boris, A., & Salinas, P. C.
Affiliations
  • University of London (GB)
  • University of Maryland, Baltimore (US)
  • University of California San Diego (US)
Corresponding author
Salinas, Patricia C
Venue
Nature Neuroscience
Published
2004-12-19
Volume
8
Issue
1
Pages
34-42
ISSN
  • 1097-6256 (ISSN-L)
  • 1546-1726
OpenAlex
W2087203385
Cited by
485
References
50
Citations by year
2026: 3 · 2025: 11 · 2024: 21 · 2023: 9 · 2022: 11 · 2021: 17 · 2020: 15 · 2019: 14 · 2018: 23 · 2017: 18 · 2016: 19 · 2015: 27 · 2014: 29 · 2013: 32 · 2012: 43
FWCI
9.64
Type
journal article
Language
en
Open access
closed
Locations
  • Nature Neuroscience (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Wellcome Trust
  • National Institute of Neurological Disorders and Stroke (R01NS073159)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Wnt/β-catenin signaling in development and cancer
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Neuroscience and Neuropharmacology Research
  • Life Sciences › Neuroscience › Cellular and Molecular Neuroscience › Axon Guidance and Neuronal Signaling
Keywords
Wnt signaling, Dishevelled, dendritic branching, Wnt7b, SFRP1, non-canonical Wnt pathway, Rac, JNK, Rho GTPases, hippocampal neurons, dendrite morphogenesis, Wnt antagonists
MeSH terms
Dishevelled Proteins, Acute-Phase Proteins, Animals, Cells, Cultured, Cytoskeleton, Dendrites, Embryo, Mammalian, Glycoproteins, Hippocampus, Mutation, Neurons, Phosphoproteins, Proteins, Proto-Oncogene Proteins, Tissue Distribution, Signal Transduction, Protein Structure, Tertiary, rac GTP-Binding Proteins, Intercellular Signaling Peptides and Proteins, JNK Mitogen-Activated Protein Kinases, Adaptor Proteins, Signal Transducing, Wnt Proteins, Mice

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