Reference Report

Reference
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. (Export to RIS)
FlyBase ID	FBrf0136851
Publication Type	Research paper
PubMed ID	11412025
PubMed 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
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Publication Type	Journal
Abbreviation	Dev. Biol.
Title	Developmental Biology
Publication Year	1959-
ISBN/ISSN	0012-1606
Data from Reference
Alleles (8)
	arm^{S10.Scer\UAS.T:Hsap\MYC} arm^ΔN.Scer\UAS Ecol\lacZ^Scer\UAS.cBa Scer\GAL4^btl.PS Scer\GAL4^c306 Scer\GAL4^e22c Scer\GAL4^elav-C155 Scer\GAL4^slbo.2.6
Constructs (4)
	P{GAL4-btl.S} P{GAL4-slbo.2.6} P{UAS-arm.S10} P{UAS-arm.ΔN}
Genes (6)
	arm btl Fas2 Fas3 Scer\GAL4 T:Hsap\MYC
Insertions (3)
	P{en2.4-GAL4}e22c P{GawB}c306 P{GawB}elav^C155
Transcripts (1)
	Scer\GAL4^btl.PSRA