Inhibition of the src kinase family pathway as a method of...

G - Physics – 01 – N

Patent

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G01N 33/53 (2006.01) A61K 31/00 (2006.01) A61K 31/277 (2006.01) A61K 31/519 (2006.01) A61K 38/00 (2006.01) A61K 38/45 (2006.01) A61K 48/00 (2006.01) C07H 21/04 (2006.01) C12N 9/12 (2006.01) C12Q 1/70 (2006.01)

Patent

CA 2293350

The present invention relates to therapeutic protocols and pharmaceutical compositions designed to target HBx mediated activation of Src kinase, members of the Src tyrosine kinase family and components of the Src kinase family signal transduction pathways for the treatment of HBV infection and related disorders and diseases, such as HCC. The invention further relates to pharmaceutical compositions for the treatment of HBV infection targeted to HBx and its essential activities required to sustain HBV replication. The invention is based, in part, on the Applicants' discovery that activation of Src kinase signaling cascades play a fundamental role in mammalian hepadnavirus replication. Applicants have demonstrated that HBx mediates activation of the Src family of kinases and that this activation is a critical function provided by HBx for mammalian hepadnavirus replication.

La présente invention a trait à des protocoles thérapeutiques et à des compositions pharmaceutiques conçues pour cibler l'activation de kinases Src par HBx, d'éléments de la famille des tyrosine kinases Src et de composants des voies de transduction de signal de la famille des kinases Src par HBx, en vue de traiter des infections par HBV ainsi que des troubles et des maladies associés, tel le carcinome hépatocellulaire (HCC). L'invention a en outre trait à des compositions pharmaceutiques ciblées sur HBx et ses activités essentielles nécessaires à la réplication de HBV, qui sont utiles pour traiter des infections par HBV. L'invention repose en partie sur une découverte faite par les déposants, selon laquelle l'activation de cascades de signalisation de kinases Src joue un rôle fondamental dans la réplication du virus ADN de l'hépatite B chez des mammifères. Les déposants ont pu montrer que HBx influence l'activation de la famille des kinases Src, et que cette activation constitue une fonction critique fournie par HBx dans la réplication du virus ADN de l'hépatite B chez des mammifères.

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