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A genome-wide RNAi screen identifies multiple RSK-dependent regulators of cell migration.
Smolen, Gromoslaw A; Zhang, Jianmin; Zubrowski, Matthew J; Edelman, Elena J; Luo, Biao; Yu, Min; Ng, Lydia W; Scherber, Cally M; Schott, Benjamin J; Ramaswamy, Sridhar; Irimia, Daniel; Root, David E; Haber, Daniel A.
Afiliação
  • Smolen GA; Massachusetts General Hospital Cancer Center, Harvard Medical School, Charlestown, 02129, USA.
Genes Dev ; 24(23): 2654-65, 2010 Dec 01.
Article em En | MEDLINE | ID: mdl-21062900
To define the functional pathways regulating epithelial cell migration, we performed a genome-wide RNAi screen using 55,000 pooled lentiviral shRNAs targeting ∼11,000 genes, selecting for transduced cells with increased motility. A stringent validation protocol generated a set of 31 genes representing diverse pathways whose knockdown dramatically enhances cellular migration. Some of these pathways share features of epithelial-to-mesenchymal transition (EMT), and together they implicate key regulators of transcription, cellular signaling, and metabolism, as well as novel modulators of cellular trafficking, such as DLG5. In delineating downstream pathways mediating these migration phenotypes, we observed universal activation of ERKs and a profound dependence on their RSK effectors. Pharmacological inhibition of RSK dramatically suppresses epithelial cell migration induced by knockdown of all 31 genes, suggesting that convergence of diverse migratory pathways on this kinase may provide a therapeutic opportunity in disorders of cell migration, including cancer metastasis.
Assuntos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Movimento Celular / Proteínas Quinases S6 Ribossômicas / Interferência de RNA / Estudo de Associação Genômica Ampla Tipo de estudo: Guideline / Prognostic_studies Limite: Humans Idioma: En Revista: Genes Dev Assunto da revista: BIOLOGIA MOLECULAR Ano de publicação: 2010 Tipo de documento: Article País de afiliação: Estados Unidos

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Movimento Celular / Proteínas Quinases S6 Ribossômicas / Interferência de RNA / Estudo de Associação Genômica Ampla Tipo de estudo: Guideline / Prognostic_studies Limite: Humans Idioma: En Revista: Genes Dev Assunto da revista: BIOLOGIA MOLECULAR Ano de publicação: 2010 Tipo de documento: Article País de afiliação: Estados Unidos