Cited by 62Developmental Biology and Gene RegulationCellular Mechanics and InteractionsZebrafish Biomedical Research Applications

Gravin regulates mesodermal cell behavior changes required for axis elongation during zebrafish gastrulation

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Weiser, Douglas C., Pyati, Ujwal J., Kimelman, David·2007·Genes & Development

Abstract

Convergent extension of the mesoderm is the major driving force of vertebrate gastrulation. During this process, mesodermal cells move toward the future dorsal side of the embryo, then radically change behavior as they initiate extension of the body axis. How cells make this transition in behavior is unknown. We have identified the scaffolding protein and tumor suppressor Gravin as a key regulator of this process in zebrafish embryos. We show that Gravin is required for the conversion of mesodermal cells from a highly migratory behavior to the medio-laterally intercalative behavior required for body axis extension. In the absence of Gravin, paraxial mesodermal cells fail to shut down the protrusive activity mediated by the Rho/ROCK/Myosin II pathway, resulting in embryos with severe extension defects. We propose that Gravin functions as an essential scaffold for regulatory proteins that suppress the migratory behavior of the mesoderm during gastrulation, and suggest that this function also explains how Gravin inhibits invasive behaviors in metastatic cells.

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  • Activation of Rho GTPase leads to the activation of the Rho-associated kinase (ROCK) and myosin, which leads to modification of the actin cytoskeleton and cytoskeletal rearrangement.

    “Activation of Rho GTPase leads to the activation of the Rho-associated kinase (ROCK)82 and myosin,83 which leads to modification of the actin cytoskeleton and cytoskeletal rearrangement.”

    From Wnt signal transduction pathways (2008) · cites this paper as [83]

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Authors
Weiser, D. C., Pyati, U. J., & Kimelman, D.
Affiliations
University of Washington (US)
Venue
Genes & Development
Published
2007-06-15
Volume
21
Issue
12
Pages
1559-1571
ISSN
  • 0890-9369 (ISSN-L)
  • 1549-5477
OpenAlex
W2051173163
Cited by
62
References
59
Citations by year
2025: 3 · 2023: 3 · 2022: 3 · 2021: 2 · 2020: 1 · 2019: 1 · 2017: 2 · 2016: 4 · 2015: 8 · 2014: 3 · 2013: 3 · 2012: 5
Type
posted content
Language
en
Open access
Locations
  • Genes & Development (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • Eunice Kennedy Shriver National Institute of Child Health and Human Development (R01 HD27262, R01HD027262, F32HD053189)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Developmental Biology and Gene Regulation
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Cellular Mechanics and Interactions
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Zebrafish Biomedical Research Applications
Keywords
gravin, gastrulation, convergent extension, mesoderm, body axis elongation, cell migration, cell intercalation, paraxial mesoderm, scaffold proteins, tumor suppressor, zebrafish embryos, metastasis
MeSH terms
Amino Acid Sequence, Animals, Base Sequence, Cell Movement, Gastrula, Mesoderm, Models, Biological, Molecular Sequence Data, Proteins, RNA, Messenger, Zebrafish, Sequence Homology, Amino Acid, Gene Expression Regulation, Developmental, Cell Cycle Proteins, Body Patterning, rhoA GTP-Binding Protein, Myosin Type II, Zebrafish Proteins, Cell Shape, A Kinase Anchor Proteins

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