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Título

LMO4 is an essential cofactor in the Snail2-mediated epithelial-to-mesenchymal transition of neuroblastoma and neural crest cells

Autor Ferronha, Tiago; Rabadán, M. Angeles ; Gil-Guiñón, Estel; Dréau, G. le ; Torres, Carmen de; Martí, Elisa
Fecha de publicación 2013
EditorSociety for Neuroscience
Citación Journal of Neuroscience 33(7): 2773-2783 (2013)
ResumenNeuroblastoma is an embryonic tumor derived from cells of the neural crest. Taking advantage of a newly developed neural crest lineage tracer and based on the hypothesis that the molecular mechanisms that mediate neural crest delamination are also likely to be involved in the spread of neuroblastoma, we were able to identify genes that are active both in neural crest development and neuroblastoma tumor formation. A subsequent search of the neuroblastoma gene server for human orthologues of genes differentially expressed in the chick embryo neural crest screen retrieved the LIM domain only protein 4 (LMO4), which was expressed in both cell types analyzed. Functional experiments in these two model systems revealed that LMO4 activity is required for neuroblastoma cell invasion and neural crest delamination. Moreover, we identified LMO4 as an essential cofactor in Snail2-mediated cadherin repression and in the epithelial-to-mesenchymal transition of both neural crest and neuroblastoma cells. Together, our results suggest that the association of high levels of LMO4 with aggressive neuroblastomas is dependent on LMO4 regulation of cadherin expression and hence, tumor invasiveness. © 2013 the authors.
Versión del editorhttp://dx.doi.org/10.1523/JNEUROSCI.4511-12.2013
URI http://hdl.handle.net/10261/87925
DOI10.1523/JNEUROSCI.4511-12.2013
Identificadoresdoi: 10.1523/JNEUROSCI.4511-12.2013
issn: 0270-6474
e-issn: 1529-2401
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