Abstract:

Characteristics of the receptor response of tumour growth factors in women with breast cancer varying according to the women’s age were investigated. The differences between the receptor profiles of the primary tumour and of the metastatic breast tissue have been found. The tumours characterised by a combination of antigen Ki-67 expression and hyperexpression of proliferative growth proto-oncogene Her-2/Neu are particularly aggressive. In case of such combination the hyperresistance to treatment is determined. 

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