Transcriptomics

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Transcriptional profiling of lung cancer cells over-expression miR-34a.


ABSTRACT: The Zeb1 transcriptional repressor plays a key role in metastasis through the down-regulation of genes that are strong inducers of epithelial differentiation and inhibitors of stem-ness. Here we report that Zeb1 controls the expression of numerous oncogenic and tumor suppressive microRNAs (miRs). Zeb1 stimulated pro-migratory cytoskeletal processes by down-regulating miR-34a and activated Rho GTPases through Arhgap1, a Cdc42 GTPase activating protein and novel miR-34a target gene. Poor-prognosis human lung adenocarcinomas were highly enriched in a cytoskeletal gene signature activated by miR-34a down-regulation. These findings suggest that Zeb1 regulates a miR network and drives pro-migratory cytoskeletal processes through miR-34a.

ORGANISM(S): Mus musculus

PROVIDER: GSE38341 | GEO | 2012/08/09

SECONDARY ACCESSION(S): PRJNA167686

REPOSITORIES: GEO

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