| Literature DB >> 17234915 |
Michelangelo Cordenonsi1, Marco Montagner, Maddalena Adorno, Luca Zacchigna, Graziano Martello, Anant Mamidi, Sandra Soligo, Sirio Dupont, Stefano Piccolo.
Abstract
During development and tissue homeostasis, cells must integrate different signals. We investigated how cell behavior is controlled by the combined activity of transforming growth factor-beta (TGF-beta) and receptor tyrosine kinase (RTK) signaling, whose integration mechanism is unknown. We find that RTK/Ras/MAPK (mitogen-activated protein kinase) activity induces p53 N-terminal phosphorylation, enabling the interaction of p53 with the TGF-beta-activated Smads. This mechanism confines mesoderm specification in Xenopus embryos and promotes TGF-beta cytostasis in human cells. These data indicate a mechanism to allow extracellular cues to specify the TGF-beta gene-expression program.Entities:
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Year: 2007 PMID: 17234915 DOI: 10.1126/science.1135961
Source DB: PubMed Journal: Science ISSN: 0036-8075 Impact factor: 47.728