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Published in: Journal of Cancer Research and Clinical Oncology 2/2011

Open Access 01-02-2011 | Review

Characteristics of triple-negative breast cancer

Authors: Tim C. de Ruijter, Jürgen Veeck, Joep P. J. de Hoon, Manon van Engeland, Vivianne C. Tjan-Heijnen

Published in: Journal of Cancer Research and Clinical Oncology | Issue 2/2011

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Abstract

Background

Triple-negative breast cancers (TNBC) neither express hormone receptors, nor overexpress HER2. They are associated with poor prognosis, as defined by low five-year survival and high recurrence rates after adjuvant therapy. Overall, TNBC share striking similarities with basal-like breast cancers (BBC), so a number of studies considered them being the same. The purpose of this review is to summarise the latest findings on TNBC concerning its relation and delineation to BBC, discuss the developmental pathways involved and address clinical implications for this complex type of breast cancer.

Methods

The recent literature from PubMed and Medline databases was reviewed.

Results

Not all TNBC are of the intrinsic BBC subtype (nonbasal (NB)-TNBC), nor are all BBC triple-negative (non-triple-negative (NTN)-BBC). There is increasing evidence that a triple-negative, basal-like breast cancer (TNBBC) subtype develops mainly through a BRCA1-related pathway. Somatic mutations that contribute to NTN-BBC and NB-TNBC development are possibly not related to this pathway, but may occur randomly due to increased genomic instability in these tumours. Several therapeutic options exist for TNBBC, which exhibited promising results in recent clinical trials. Cytotoxic therapies, e.g. combined treatment with anthracyclines or taxanes, achieved good tumour regression rates in the neo-adjuvant setting, but also showed considerable recurrence during the first 5 years after therapy. Targeted therapy options involve PARP1 and EGFR inhibition, although both approaches still need further investigation.

Conclusions

TNBC and BBC are not the same disease entity. The TNBBC subtype shows the largest homogeneity in terms of tumour development, prognosis and clinical intervention options.
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Metadata
Title
Characteristics of triple-negative breast cancer
Authors
Tim C. de Ruijter
Jürgen Veeck
Joep P. J. de Hoon
Manon van Engeland
Vivianne C. Tjan-Heijnen
Publication date
01-02-2011
Publisher
Springer-Verlag
Published in
Journal of Cancer Research and Clinical Oncology / Issue 2/2011
Print ISSN: 0171-5216
Electronic ISSN: 1432-1335
DOI
https://doi.org/10.1007/s00432-010-0957-x

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