Methods for cancer prognosis and screening antiproliferative...

C - Chemistry – Metallurgy – 12 – Q

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C12Q 1/68 (2006.01) G01N 33/53 (2006.01) G01N 33/574 (2006.01)

Patent

CA 2365048

The invention provides prognostic methods which comprise determining the level of expression of the gene c-fyn, or the level of activated STAT-3 protein. Because the relative level of c-fyn expression and level of activated STAT-3 protein correlate with the presence of malignant potential and therefore patient prognosis, these markers may be used to make treatment decisions, to predict patient outcome, and to predict the risk of cancer in disease-free individuals. The invention further provides a method for identifying anticancer drugs in which inhibitors of cell proliferation are identified as inhibitors of Src-mediated STAT phosphorylation.

L'invention se rapporte à des méthodes pronostiques qui consistent à déterminer le niveau d'expression du gène c-fyn, ou le taux de protéine STAT-3 activée. Du fait que le niveau relatif d'expression du gène c-fyn et le taux de protéine STAT-3 activée sont corrélés à la présence d'un potentiel de malignité permettant de pronostiquer un cancer chez un patient, ces marqueurs peuvent être utilisés pour prendre des décisions relatives à un traitement, pour prévoir l'issue de la maladie chez un patient et pour prédire le risque de cancer chez des sujets sains. L'invention se rapporte en outre à un procédé d'identification de médicaments anticancéreux dans lesquels des inhibiteurs de prolifération cellulaire sont identifiés en tant qu'inhibiteurs de phosphorylation de la STAT à médiation Src.

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