Cited by 217Developmental Biology and Gene RegulationWnt/β-catenin signaling in development and cancerCellular Mechanics and Interactions

Xenopus Dishevelled signaling regulates both neural and mesodermal convergent extension: parallel forces elongating the body axis

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Wallingford, John B., Harland, Richard M.·2001·Development

Abstract

During amphibian development, non-canonical Wnt signals regulate the polarity of intercalating dorsal mesoderm cells during convergent extension. Cells of the overlying posterior neural ectoderm engage in similar morphogenetic cell movements. Important differences have been discerned in the cell behaviors associated with neural and mesodermal cell intercalation, raising the possibility that different mechanisms may control intercalations in these two tissues. In this report, targeted expression of mutants of Xenopus Dishevelled (Xdsh) to neural or mesodermal tissues elicited different defects that were consistent with inhibition of either neural or mesodermal convergent extension. Expression of mutant Xdsh also inhibited elongation of neural tissues in vitro in Keller sandwich explants and in vivo in neural plate grafts. Targeted expression of other Wnt signaling antagonists also inhibited neural convergent extension in whole embryos. In situ hybridization indicated that these defects were not due to changes in cell fate. Examination of embryonic phenotypes after inhibition of convergent extension in different tissues reveals a primary role for mesodermal convergent extension in axial elongation, and a role for neural convergent extension as an equalizing force to produce a straight axis. This study demonstrates that non-canonical Wnt signaling is a common mechanism controlling convergent extension in two very different tissues in the Xenopus embryo and may reflect a general conservation of control mechanisms in vertebrate convergent extension.

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Crossref · 10.1242/dev.128.13.2581

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  • In cells undergoing convergent extension, Dsh is localized at the plasma membrane and accumulates in lamellipodia.

    “In cells undergoing convergent extension, Dsh is localized at the plasma membrane and accumulates in lamellipodia.86”

    From Wnt signal transduction pathways (2008) · cites this paper as [86]

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Authors
Wallingford, J. B., & Harland, R. M.
Affiliations
University of California, Berkeley (US)
Venue
Development
Published
2001-07-01
Volume
128
Issue
13
Pages
2581-2592
ISSN
  • 0950-1991 (ISSN-L)
  • 1477-9129
OpenAlex
W2134485689
Cited by
217
References
58
Citations by year
2026: 3 · 2025: 7 · 2024: 1 · 2023: 3 · 2022: 4 · 2021: 6 · 2020: 6 · 2019: 6 · 2018: 1 · 2017: 10 · 2016: 7 · 2015: 7 · 2014: 10 · 2013: 12 · 2012: 9
FWCI
5.94
Type
journal article
Language
en
Open access
Licence
cc-by
Locations
  • Development (publishedVersion, cc-by)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Wnt/β-catenin signaling in development and cancer
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular Mechanics and Interactions
Keywords
convergent extension, non-canonical Wnt signaling, Dishevelled, Xenopus embryo, body axis elongation, Wnt signaling antagonist, cell intercalation, amphibian embryonic development
MeSH terms
Wnt-5a Protein, Dishevelled Proteins, Animals, Cell Differentiation, DNA-Binding Proteins, Female, Humans, Mesoderm, Nerve Tissue Proteins, Neural Crest, Phenotype, Phosphoproteins, Proteins, Receptors, Cell Surface, Xenopus laevis, Signal Transduction, Body Patterning, Xenopus Proteins, Adaptor Proteins, Signal Transducing, Wnt Proteins

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