ONCOGENIC SPLICING

Characterizing the oncogenic properties and target genes of the splicing factor protooncogene SF2ASF

Coordinatore	THE HEBREW UNIVERSITY OF JERUSALEM.    more  Organization address address: GIVAT RAM CAMPUS city: JERUSALEM postcode: 91904 contact info Titolo: Dr. Nome: Eran Cognome: Vardi Email: send email Telefono: -6585706 Fax: -6512235
Nazionalità Coordinatore	Israel [IL]
Totale costo	100˙000 €
EC contributo	100˙000 €
Programma	FP7-PEOPLE Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
Code Call	FP7-PEOPLE-2007-4-3-IRG
Funding Scheme	MC-IRG
Anno di inizio	2008
Periodo (anno-mese-giorno)	2008-03-01   -   2012-02-29

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	THE HEBREW UNIVERSITY OF JERUSALEM.  Organization address address: GIVAT RAM CAMPUS city: JERUSALEM postcode: 91904 contact info Titolo: Dr. Nome: Eran Cognome: Vardi Email: send email Telefono: -6585706 Fax: -6512235	IL (JERUSALEM)	coordinator	0.00

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 Obiettivo del progetto (Objective)

'Cancer is a multifaceted disease involving numerous mutations in many tumor suppressors and oncogenes. Elucidation of the molecular basis of cancer has been and continues to be a major goal of biomedical research in the past few decades. Previous evidence suggests a connection between alternative splicing and cancer, and the activities of many oncogenes and tumor suppressors are modulated by alternative splicing. We found recently that the splicing factor SF2/ASF is a potent proto-oncogene, capable of transforming immortal and primary fibroblasts when slightly overexpressed. We found that SF2/ASF is upregulated in a set of human tumors and SFRS1, the gene coding for SF2/ASF is specifically amplified in some breast tumors but not in normal breast tissue from the same patient. Moreover, we identified several endogenous splicing targets of SF2/ASF, among them a novel oncogenic isoform of the mTOR substrate, S6K1, which is essential for SF2/ASF-mediated transformation. Based on these findings, we propose to study the detailed mechanisms of SF2/ASF-mediated transformation in cancer. We will dissect the specific functions of SF2/ASF required for its activity as an oncoprotein, through a structure-function analysis of its specific domains, using deletion mutants that are impaired in specific biological processes. We hypothesize that the splicing activity of SF2/ASF is essential for its transforming activity. Thus, we wish to identify and validate the regulated alternative splicing targets of SF2/ASF. We will identify these splicing targets on a genome-wide scale, using an exon array recently developed by Affymetrix. These experiments will shed light on the molecular mechanisms by which SF2/ASF is upregulated in human cancer and can lead to transformation. The analysis of a novel type of proto-oncogene has the potential to uncover new molecular aspects of cancer, and to provide new opportunities for diagnosis and therapy.'