Résumé :
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[BDSP. Notice produite par INIST-CNRS 8PR0xInB. Diffusion soumise à autorisation]. We previously used DNA array analyses In the molecular profiling of breast cancers. By cluster analysis of 55 patients, we Identified a subpopulatlon of breast cancers-designated class A-that contained a high number of nodal-positive tumours and that had frequently developed distant metastases at the time of diagnosis. We have now analysed follow-up data from these patients. We found that, despite a median of only 23.5 months of follow-up, 11 of 22 patients In class A progressed to metastatic disease, and three of five patients classified as having a nodal status of NO in this subpopulation developed distant metastases. Our analysis identifies breast-cancer patients with a high risk of disease recurrence, and could act as a first step towards improved patient-adapted therapy.
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