Methods for utilizing esr copy number changes in breast...

C - Chemistry – Metallurgy – 12 – Q

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C12Q 1/68 (2006.01)

Patent

CA 2688049

The present invention relates to methods for estimation of efficacy of therapeutic treatment of cancer patients, in particular breast cancer patients. The estimation is based on determining of the status of aberration of the estrogen receptor alpha gene (ESR1) in situ, and, optionally, the status of aberration of a gene related to ESR1. In particular, the invention relates to determining the presence or absence and, if present, the type of aberration, e.g. amplification, duplication, polyploidization, deletion or translocation of the ESR1 gene in the tumor cells of the patient. The invention further relates to a kit-in-parts comprising probes for the determining the status of aberration of ESR1 and ESR1-related genes in situ.

La présente invention concerne des procédés d'estimation de l'efficacité du traitement thérapeutique de patients souffrant d'un cancer, notamment de cancer du sein. L'estimation est fondée sur la détermination de l'état d'aberration du gène alpha du récepteur d'AEstrogènes (ESR1) in situ et, éventuellement, l'état d'aberration d'un gène associé à ESR1. L'invention concerne en particulier la détermination de la présence ou de l'absence et, si présentes, du type d'aberrations, p. ex. amplification, duplication, polyploïdisation, délétion ou translocation du gène ESR1 dans les cellules tumorales du patient. L'invention concerne également un kit qui comprend des sondes destinées à déterminer l'état d'aberration de ESR1 et de gènes associés à ESR1 in situ.

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