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Erschienen in: Cancer Chemotherapy and Pharmacology 3/2011

01.09.2011 | Original Article

Potential candidate biomarkers for heterogeneity in triple-negative breast cancer (TNBC)

verfasst von: Eun Yoon Cho, Myung Hee Chang, Yoon La Choi, Jeong Eon Lee, Seok Jin Nam, Jung-Hyun Yang, Yeon Hee Park, Jin Seok Ahn, Young-Hyuck Im

Erschienen in: Cancer Chemotherapy and Pharmacology | Ausgabe 3/2011

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Abstract

Purpose

Triple-negative breast cancer (TNBC) exhibits a distinct pattern of recurrence characterized by a rapidly rising rate in the first 2 years with a peak at 2–3 years, followed by a decline over the next 5 years. However, some TNBC patients exhibit indolent clinical behavior. The aim of this study was to investigate clinical characteristics and outcomes of metastatic TNBCs. In addition, we were to find out the marker which could divide TNBCs into a few subgroups according to different clinical features.

Methods

We retrospectively analyzed the clinicopathologic characteristics and outcomes of patients with metastatic TNBC who received palliative treatment between 1999 and 2007.

Results

The median relapse-free survival (RFS) and overall survival (OS) of 152 patients were 24 and 20 months, respectively. Divided TNBCs based on a RFS of 36 months, the patients with a RFS of ≥36 months had a better disease control rate (DCR), progression-free survival (PFS), and OS than those with a RFS of <3 years. Cox-regression multivariate analysis for RFS and OS revealed EGFR positivity and a low BRCA1 score as an independent risk factor for OS.

Conclusions

The patients with a RFS ≥ 3 years had a significantly better DCR, PFS, and OS than patients who had a RFS < 3 years. BRCA1 and EGFR expression may be candidate determinants to distinguish RFS. A prospective clinical trial for different therapeutic strategies is needed for each subgroup.
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Metadaten
Titel
Potential candidate biomarkers for heterogeneity in triple-negative breast cancer (TNBC)
verfasst von
Eun Yoon Cho
Myung Hee Chang
Yoon La Choi
Jeong Eon Lee
Seok Jin Nam
Jung-Hyun Yang
Yeon Hee Park
Jin Seok Ahn
Young-Hyuck Im
Publikationsdatum
01.09.2011
Verlag
Springer-Verlag
Erschienen in
Cancer Chemotherapy and Pharmacology / Ausgabe 3/2011
Print ISSN: 0344-5704
Elektronische ISSN: 1432-0843
DOI
https://doi.org/10.1007/s00280-010-1548-x

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