NEW MARKER OF BREAST TUMORS FROM THE LUMINAL-B SYBTYPE

摘要

The present invention relates to an in vitro method for diagnosing a breast cancer from the luminal-B subtype in a female, which comprises the steps of analyzing a biological sample from said female by (i) determining the copies number of the ZNF703 gene, and/or (ii) determining the expression of the ZNF703 gene, wherein an increased copies number and/or an over-expression of the ZNF703 gene is indicative of a luminal B tumor; to a kit for diagnosing a breast cancer from the luminal-B subtype in a female comprising at least one nucleic acid probe or oligonucleotide or at least one antibody, which can be used in a method as defined previously, for determining the copies number of the ZNF703 gene, and/or determining the expression of the ZNF703 gene; and to the use of such a kit.