Abstract:
BACKGROUND:TOP2A gene encodes topoisomerase II alpha, the direct molecular target of anthracyclines. This gene is frequently coamplified with HER2. The aims of this study were to analyse the pattern of TOP2A amplification and protein expression in relation to the molecular subgroups of breast cancers; and to define the impact of TOP2A amplification on the outcome of a series of patients homogeneously treated with adjuvant anthracyclines. METHODS:A cohort of 245 patients with early breast cancer homogeneously treated with anthracyclines in the adjuvant setting was selected. A tissue microarray containing these cancers was used to determine HER2 and TOP2A gene copy number by means of chromogenic in situ hybridization. Immunohistochemical staining of topoisomerase II alpha was also performed using a monoclonal antibody (Ki-S1). TOP2A amplification and protein expression were correlated with classical prognostic parameters, expression of immunohistochemical markers and with a gene expression profiling classification using surrogate immunohistochemical markers. Kaplan-Meier method was used to construct survival curves and results were compared with log-rank test. RESULTS:TOP2A amplification was restricted to tumours with HER2 amplification and was significantly associated with ER positivity. In the subgroup of patients with HER2 amplified tumours, TOP2A amplification predicted a better overall survival and disease free survival (P = 0.028 and 0.026, respectively). On multivariate analysis, TOP2A amplification maintained its predictive value for DFS. CONCLUSION:TOP2A amplification is likely to be a useful marker to predict the subset of patients who will benefit from anthracyclines.
journal_name
Breast Cancer Res Treatjournal_title
Breast cancer research and treatmentauthors
Arriola E,Rodriguez-Pinilla SM,Lambros MB,Jones RL,James M,Savage K,Smith IE,Dowsett M,Reis-Filho JSdoi
10.1007/s10549-006-9492-5subject
Has Abstractpub_date
2007-12-01 00:00:00pages
181-9issue
2eissn
0167-6806issn
1573-7217journal_volume
106pub_type
杂志文章abstract:PURPOSE:This project was undertaken to examine the association between dietary intake of soy or cruciferous vegetables and breast cancer treatment-related symptoms among Chinese-American (CA) and Non-Hispanic White (NHW) breast cancer survivors. METHODS:This cross-sectional study included 192 CA and 173 NHW female bre...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-017-4578-9
更新日期:2018-04-01 00:00:00
abstract:BACKGROUND:The purpose of this retrospective study was to analyze the overall survival of patients with brain metastases due to breast cancer and to identify prognostic factors that affect clinical outcome. METHODS:Of the 7,872 breast cancer patients histologically diagnosed with breast cancer between January 1990 and...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-007-9806-2
更新日期:2008-10-01 00:00:00
abstract::The mutation pattern of breast cancer molecular subtypes is incompletely understood. The purpose of this study was to identify mutations in genes that may be targeted with currently available investigational drugs in the three major breast cancer subtypes (ER+/HER2-, HER2+, and Triple Negative). We extracted DNA from ...
journal_title:Breast cancer research and treatment
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doi:10.1007/s10549-012-2035-3
更新日期:2012-07-01 00:00:00
abstract::The spectrum of germline mutations among Jewish non Ashkenazi high risk breast/ovarian cancer families includes a few predominant mutations in BRCA1 (185delAG and Tyr978X) and BRCA2 (8765delAG). A few additional recurring mutations [A1708E, 981delAT, C61G (BRCA1) R2336P, and IVS2 + 1G > A (BRCA2)] have been reported i...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-012-2006-8
更新日期:2012-06-01 00:00:00
abstract::Integrins are cell surface receptors, which mediate cell-to-cell and cell-to-extracellular matrix adhesion. Some of them, e.g. alpha(V)beta(3), alpha(IIb)beta(3) and alpha(2)beta(1), have been suggested as key players for cancer development and tumor metastasis. Two polymorphisms in the gene for the alpha(2) component...
journal_title:Breast cancer research and treatment
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abstract::Trinucleotide repeat-containing 9 (TNRC9), a high mobility group chromatin-associated protein, has been implicated in breast cancer metastasis to the bone. Recently, several single nucleotide polymorphisms (SNPs) of TNRC9 were identified as novel breast cancer susceptibility loci by whole genome association studies, e...
journal_title:Breast cancer research and treatment
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doi:10.1007/s10549-010-0809-z
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journal_title:Breast cancer research and treatment
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更新日期:2012-06-01 00:00:00
abstract:PURPOSE:Mobile mammography can improve access to screening mammography in rural areas and underserved populations. We evaluated the frequency of incomplete reports in mobile mammography screening and the relationships between prior mammograms and recall rates. METHODS:The frequency of incomplete mammogram reports, the...
journal_title:Breast cancer research and treatment
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doi:10.1007/s10549-018-4861-4
更新日期:2018-10-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
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journal_title:Breast cancer research and treatment
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章,评审
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abstract::Alcohol consumption is known to be a risk factor for breast cancer in Western countries, but few epidemiologic data have been available in Japan. This population-based prospective cohort study evaluated the associations of alcohol consumption with breast cancer risk in a Japanese population. A total of 19,227 women ag...
journal_title:Breast cancer research and treatment
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doi:10.1007/s10549-011-1381-x
更新日期:2011-08-01 00:00:00
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journal_title:Breast cancer research and treatment
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doi:10.1007/s10549-013-2485-2
更新日期:2013-05-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
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更新日期:1999-10-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF01806694
更新日期:1987-01-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF01806524
更新日期:1989-03-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-011-1742-5
更新日期:2012-01-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-015-3672-0
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-009-0615-7
更新日期:2010-06-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
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更新日期:2019-05-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1023/a:1006100929670
更新日期:1999-03-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF01886734
更新日期:1986-01-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:1997-09-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-020-05750-y
更新日期:2020-08-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章,评审
doi:10.1023/a:1005964511134
更新日期:1997-11-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF01806397
更新日期:1984-01-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF00665981
更新日期:1995-09-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-016-3787-y
更新日期:2016-05-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1023/a:1005913810250
更新日期:1998-05-01 00:00:00