Use of inhibitors for the treatment of...

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 15/18 (2006.01) A61K 31/40 (2006.01) A61K 38/17 (2006.01) A61K 38/18 (2006.01) C07K 14/71 (2006.01) C07K 16/28 (2006.01) C12N 15/12 (2006.01) C12Q 1/68 (2006.01) A61K 38/00 (2006.01)

Patent

CA 2319121

The invention relates to the use of inhibitors for the treatment and/or prevention of diseases resulting from increased receptor tyrosine kinase activity, especially cancer. Use concerns particularly the inhibition or reduction of over-expression and/or altered activity of receptor tyrosine kinases (RKTs). Such changes in the activity of receptor tyrosine kinase may be triggered particularly by a mutation of the FGFR-4, which mutation is especially a point mutation in the transmembrane domain of FGFR-4 and leads to an exchange of a hydrophobic for a hydrophilic amino acid. The invention further relates to the use of an inhibitor directed against FGFR-4 for the treatment and/or prevention of cancer. The invention also relates to a mutated FGFR-4 causing overexpression and/or altered activity in cells. The invention finally relates to a DNA and RNA sequence of a mutated FGFR-4 molecule, a pharmaceutical composition comprising the inhibitor described above, and a diagnostic and screening method.

La présente invention concerne l'utilisation d'inhibiteurs pour le traitement et/ou la prophylaxie de maladies provoquées par une hyperactivité de récepteurs présentant une activité de tyrosine kinase (RTK), notamment le cancer. Ils sont utilisés en particulier pour inhiber ou réduire l'hyperexpression et/ou la modification d'activité des RTK. Cette modification d'activité des RTK peut en particulier être déclenchée par une mutation du FGFR-4. Cette mutation est en particulier une mutation ponctuelle dans le domaine transmembranaire du FGFR-4 et entraîne l'échange d'un acide aminé hydrophobe contre un acide aminé hydrophile. L'invention concerne en outre l'utilisation d'un inhibiteur dirigé contre le FGFR-4 pour le traitement et/ou la prophylaxie du cancer. De plus, l'invention concerne un FGFR-4 ayant subi une mutation entraînant une hyperexpression et/ou une modification d'activité dans les cellules. Enfin, l'invention concerne une séquence d'ADN ou d'ARN d'une molécule de FGFR-4 ayant subi une mutation, une composition pharmaceutique, contenant ledit inhibiteur, ainsi qu'une méthode de diagnostic et de criblage.

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