Cited by 162Protein Kinase Regulation and GTPase SignalingDevelopmental Biology and Gene RegulationCellular Mechanics and Interactions

Distinct functions of Rho and Rac are required for convergent extension during Xenopus gastrulation

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Tahinci, Emilios, Symes, Karen·2003·Developmental Biology

Abstract

We have undertaken the first detailed analysis of Rho GTPase function during vertebrate development by analyzing how RhoA and Rac1 control convergent extension of axial mesoderm during Xenopus gastrulation. Monitoring of a number of parameters in time-lapse recordings of mesoderm explants revealed that Rac and Rho have both distinct and overlapping roles in regulating the motility of axial mesoderm cells. The cell behaviors revealed by activated or inhibitory versions of these GTPases in native tissue were clearly distinct from those previously documented in cultured fibroblasts. The dynamic properties and polarity of protrusive activity, along with lamellipodia formation, were controlled by the two GTPases operating in a partially redundant manner, while Rho and Rac contributed separately to cell shape and filopodia formation. We propose that Rho and Rac operate in distinct signaling pathways that are integrated to control cell motility during convergent extension.

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  • Many components of non-canonical pathway, including Dsh, Fz, Daam1, Rho, Rac, Prickle and Strabismus, were shown to disrupt convergent extension.

    “Many other components of non-canonical pathway were also shown to disrupt convergent extension, including Dsh, Fz, Daam1, Rho, Rac, Prickle and Strabismus.65–74”

    From Wnt signal transduction pathways (2008) · cites this paper as [70]

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  1. Diggle, P.J., Liang, K.Y., Zeger, S.L., 1994. Analysis of Longtitudinal Data. Clarendon Press, Oxford, UK.

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Authors
Tahinci, E., & Symes, K.
Affiliations
Boston University (US)
Corresponding author
Symes, Karen
Venue
Developmental Biology
Publisher
Elsevier BV
Published
2003-07
Volume
259
Issue
2
Pages
318-335
ISSN
0012-1606 (ISSN-L)
OpenAlex
W2090667868
Cited by
162
References
76
Citations by year
2025: 1 · 2022: 5 · 2021: 5 · 2020: 2 · 2019: 2 · 2018: 3 · 2017: 6 · 2016: 7 · 2015: 2 · 2014: 7 · 2013: 4 · 2012: 8
FWCI
5.41
Type
journal article
Language
en
Open access
Locations
  • Developmental Biology (publishedVersion, public-domain)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Cancer Institute (R01 CA87375, R01CA087375)
Topics
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Protein Kinase Regulation and GTPase Signaling
  • 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
Keywords
RhoA, Rac1, convergent extension, Xenopus gastrulation, axial mesoderm, cell motility, lamellipodia, filopodia, cell shape, GTPase signaling
MeSH terms
Animals, Cell Movement, Cells, Cultured, Embryo, Nonmammalian, Gastrula, Mesoderm, Pseudopodia, Xenopus, Signal Transduction, Cell Polarity, rho GTP-Binding Proteins, rac GTP-Binding Proteins, Cell Size

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