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Citation
Loureiro, J.J., Akong, K., Cayirlioglu, P., Baltus, A.E., DiAntonio, A., Peifer, M. (2001). Activated armadillo/beta-catenin does not play a general role in cell migration and process extension in Drosophila.  Dev. Biol. 235(1): 33--44.
FlyBase ID
FBrf0136851
Publication Type
Research paper
Abstract

Human beta-catenin and its fly homolog Armadillo are best known for their roles in cadherin-based cell-cell adhesion and in transduction of Wingless/Wnt signals. It has been hypothesized that beta-catenin may also regulate cell migration and cell shape changes, possibly by regulating the microtubule cytoskeleton via interactions with APC. This hypothesis was based on experiments in which a hyperstable mutant form of beta-catenin was expressed in MDCK cells, where it altered their migratory properties and their ability to send out long cellular processes. We tested the generality of this hypothesis in vivo in Drosophila. We utilized three model systems in which cell migration and/or process extension are known to play key roles during development: the migration of the border cells during oogenesis, the extension of axons in the nervous system, and the migration and cell process extension of tracheal cells. In all cases, cells expressing activated Armadillo were able to migrate and extend cell processes essentially normally. The one alteration from normal involved an apparent cell fate change in certain tracheal cells. These results suggest that only certain cells are affected by activation of Armadillo/beta-catenin, and that Armadillo/beta-catenin does not play a general role in inhibiting cell migration or process extension.

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    Language of Publication
    English
    Additional Languages of Abstract
    Parent Publication
    Publication Type
    Journal
    Abbreviation
    Dev. Biol.
    Title
    Developmental Biology
    Publication Year
    1959-
    ISBN/ISSN
    0012-1606
    Data From Reference
    Alleles (8)
    Genes (5)
    Insertions (3)
    Transgenic Constructs (4)
    Transcripts (1)