IMR Press / FBL / Volume 13 / Issue 14 / DOI: 10.2741/3079

Frontiers in Bioscience-Landmark (FBL) is published by IMR Press from Volume 26 Issue 5 (2021). Previous articles were published by another publisher on a subscription basis, and they are hosted by IMR Press on imrpress.com as a courtesy and upon agreement with Frontiers in Bioscience.

Open Access Article
RAS and PKA pathways in cancer: new insight from transcriptional analysis
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1 Department of Biotechnology and Biosciences, University of Milano-Bicocca, Piazza della Scienza 2, 20126 Milan, Italy
Academic Editor:Silvio Naviglio
Front. Biosci. (Landmark Ed) 2008, 13(14), 5257–5278; https://doi.org/10.2741/3079
Published: 1 May 2008
(This article belongs to the Special Issue Adenylate cyclasecAMP axis and cell growth)
Abstract

Through its ability to regulate the activity of a large number of transcription factors, the Ras pathway is able to control several transcriptional programs leading to proliferation, differentiation, metabolism, cytoskeletal reorganization and immune response. Cyclic AMP (cAMP) is a ubiquitous intracellular second messenger whose major intracellular target in eukaryotes is protein kinase A (PKA). Wide evidence for cross talk between the Ras and cAMP-PKA pathways is available. After reviewing some features of Ras and PKA signalling that are relevant for cancer biology, we re-analyze available genome-wide expression data for genes encoding proteins of the downstream branch of the PKA pathway in human tumor cell lines as a function of the mutational state of the Ras pathway. The observed Ras-dependent pattern of regulation of the analyzed genes may contribute to explain how the cAMP-PKA axis is involved in oncogenic processes induced by Ras.

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