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Cathepsin-D in primary breast cancer: prognostic evaluation involving 2810 patients
Authors
J A Foekens
M E Meijer-van Gelder
+4 more
J G M Klijn
M P Look
W L J van Putten
J Bolt-de Vries
Publication date
1 January 2008
Publisher
Nature Publishing Group
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PubMed
Abstract
There is controversy regarding the prognostic value of cathepsin-D in primary breast cancer. An increased level of cathepsin-D in tumour extracts has been found to be associated with a poor relapse-free and overall survival. Studies performed with immunohistochemistry or Western blotting have produced diverse results. We have analysed 2810 cytosolic extracts obtained from human primary breast tumours for cathepsin-D expression, and have correlated their levels with prognosis. The median follow-up of the patients still alive was 88 months. Patients with high cathepsin-D levels had a significantly worse relapse-free and overall survival, also in multivariate analysis (P < 0.0001). Adjuvant therapy which was associated with an improved prognosis in node-positive patients in univariate analysis, also significantly added to the multivariate models for relapse-free and overall survival. There were no statistically significant interactions between the levels of cathepsin-D and any of the classical prognostic factors in analysis for relapse-free survival, suggesting that the prognostic value of cathepsin-D is not different in the various subgroups of patients. Indeed, multivariate analyses in subgroups of node-negative and -positive patients, pre- and post-menopausal patients, and their combinations, showed that tumours with high cathepsin-D values had a significantly poor relapse-free survival, with relative hazard rates ranging from 1.3 to 1.5, compared with tumours with low cathepsin-D levels. The results presented here on 2810 patients confirm that high cytosolic cathepsin-D values are associated with poor prognosis in human primary breast cancer. © 1999 Cancer Research Campaig
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Last time updated on 11/12/2019
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Last time updated on 03/01/2020