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  • Title: HER-2/neu oncogene expression in advanced breast cancer.
    Author: Krogerus LA, Leivonen M.
    Journal: Cancer Detect Prev; 2001; 25(1):1-7. PubMed ID: 11270416.
    Abstract:
    Tumor tissue from patients with advanced breast cancer was analyzed for HER-2/neu and p53 expression. The tissue samples from primary tumor and from axillary lymph nodes or distant metastases from 118 breast cancer patients were obtained. Sections from formalin-fixed, paraffin-embedded materials were immunostained for HER-2/neu and p53 oncoprotein expression. Staining results were correlated with survival times and disease-free survival times, flow cytometric synthesis phase fractions, and DNA ploidy. No correlation could be found between HER-2/neu and p53 or any other tested factor, but grade I primary cancers that were positive for HER-2/neu showed a tendency for better outcome. The HER-2/neu staining of the metastases was independent of the staining of the primary tumor. HER-2/neu can be used as a prognostic marker for advanced breast cancer, when the primary tumor is well differentiated.
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