Abstract:
PURPOSE:HER2 gene amplification and overexpression is associated with aggressive breast cancer and poor prognosis. Accurate HER2 testing of patients with breast cancer before treatment is important to ensure that as many patients with HER2-positive breast cancer as possible receive the most appropriate treatment and that women with HER2-negative disease avoid a potentially toxic therapy. This study compares immunohistochemistry (IHC) and fluorescence in situ hybridization (FISH) HER2 testing at central and regional laboratories in Greece. PATIENTS AND METHODS:The HER2 status of 458 breast cancer samples was determined by IHC in central and regional laboratories using commercially available anti-HER2 antibodies. FISH analysis, scored as number of signals or a ratio, was subsequently performed by the central laboratory on most samples. Various statistical analyses were used to examine concordance between test center results. RESULTS:Immunohistochemistry HER2 testing was successfully performed on 445 samples in the central laboratory and 381 samples in regional laboratories, with good concordance between central and regional laboratories. After FISH analyses of a large proportion of these samples, good correlation was observed between FISH HER2 status and IHC results from the central laboratory but not from regional laboratories. These data suggest that HER2 status determined by IHC in a central laboratory is generally more accurate than that determined by a regional laboratory. CONCLUSION:This study emphasizes the importance of accurate HER2 testing and the need to continually check the reproducibility and reliability of the test.
journal_name
Clin Breast Cancerjournal_title
Clinical breast cancerauthors
Papadopoulos S,Kouvatseas G,Skarlos D,Malamos N,Delliou E,Saratsiotou I,Ardavanis A,Mavroudis D,Skarpidi E,Arapantoni P,Karyda I,Patakioyta F,Aravantinos G,Razis E,Fountzilas G,Kosmidis Pdoi
10.3816/CBC.2007.n.040subject
Has Abstractpub_date
2007-10-01 00:00:00pages
784-90issue
10eissn
1526-8209issn
1938-0666pii
S1526-8209(11)70783-2journal_volume
7pub_type
杂志文章abstract:BACKGROUND:Based on preclinical studies and a phase I trial of the combination of bortezomib and pegylated liposomal doxorubicin (PLD), which both showed activity in breast cancer, we conducted a phase II study of this regimen in patients with metastatic breast cancer. PATIENTS AND METHODS:Patients received bortezomib...
journal_title:Clinical breast cancer
pub_type: 杂志文章
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abstract:BACKGROUND:Medical isotopes are required for sentinel node lymphoscintigraphy in breast cancer, but are in critical shortage. Our center uses a modification of the standard SC, called CRC, that has been shown to require less medical isotope for the same procedure. Our objective was to determine if there was a significa...
journal_title:Clinical breast cancer
pub_type: 杂志文章
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abstract:BACKGROUND:Novel targeted agents and combinations have become available in multiple lines of treatment for human epidermal growth factor receptor 2-positive (HER2(+)) metastatic breast cancer (MBC). In this context, alternatives to the lapatinib (L) and capecitabine (C) regimen, evaluating L combined with other cytotox...
journal_title:Clinical breast cancer
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1016/j.clbc.2015.10.005
更新日期:2016-02-01 00:00:00
abstract::Preliminary results of a phase II study of gemcitabine plus trastuzumab in previously treated (up to 3 previous regimens) metastatic breast cancer patients are presented. Patients had histologically confirmed metastatic breast cancer, with 2+ or 3+ tumor HER2 expression. Treatment consisted of gemcitabine 1200 mg/m2 o...
journal_title:Clinical breast cancer
pub_type: 临床试验,杂志文章
doi:10.3816/cbc.2002.s.004
更新日期:2002-05-01 00:00:00
abstract:BACKGROUND:Several studies conducted in developed countries introduced diet and physical inactivity as major risk factors for several types of cancers. However, the impact of diet and physical inactivity on the risk of breast cancer (BC) is understudied, and the limited findings are controversial. In addition, no or li...
journal_title:Clinical breast cancer
pub_type: 杂志文章
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journal_title:Clinical breast cancer
pub_type: 杂志文章
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journal_title:Clinical breast cancer
pub_type: 杂志文章
doi:10.3816/CBC.2007.n.029
更新日期:2007-08-01 00:00:00
abstract::Multiple sclerosis (MS) is an autoimmune inflammatory disease of the central nervous system frequently complicated by devastating neurologic symptoms and progressive disability. Much progress has been made in the development of immunomodulating drugs to help fight the progression of MS. These drugs are believed to wor...
journal_title:Clinical breast cancer
pub_type: 杂志文章
doi:10.3816/CBC.2008.n.055
更新日期:2008-10-01 00:00:00
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journal_title:Clinical breast cancer
pub_type: 杂志文章
doi:10.3816/CBC.2010.n.008
更新日期:2010-02-01 00:00:00
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journal_title:Clinical breast cancer
pub_type: 杂志文章,多中心研究
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更新日期:2019-10-01 00:00:00
abstract:BACKGROUND:Metastases to the brain occur in 10%-16% of patients with breast cancer, with incidence reportedly increasing. Historically, brain metastases (BM) have been treated with whole-brain radiation therapy (WBRT), but stereotactic radiosurgery (SRS) is an increasingly favored treatment option. In this study we use...
journal_title:Clinical breast cancer
pub_type: 杂志文章
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更新日期:2019-04-01 00:00:00
abstract::According to the World Health Organization (WHO) published data in 2015; breast cancer is the most prevalent and the second leading cause of cancer death among females. As approximately 70% of breast cancer tumor cells are estrogen receptor (ER) positive, primary therapeutic agents such as Anti-estrogens were produced...
journal_title:Clinical breast cancer
pub_type: 杂志文章,评审
doi:10.1016/j.clbc.2017.03.013
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journal_title:Clinical breast cancer
pub_type: 杂志文章
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更新日期:2011-12-01 00:00:00
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journal_title:Clinical breast cancer
pub_type: 杂志文章,评审
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更新日期:2004-06-01 00:00:00
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journal_title:Clinical breast cancer
pub_type: 杂志文章
doi:10.1016/j.clbc.2016.03.004
更新日期:2016-08-01 00:00:00
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journal_title:Clinical breast cancer
pub_type: 杂志文章
doi:10.1016/j.clbc.2014.02.006
更新日期:2014-08-01 00:00:00
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journal_title:Clinical breast cancer
pub_type: 杂志文章
doi:10.1016/j.clbc.2018.03.014
更新日期:2018-10-01 00:00:00
abstract:OBJECTIVE:The Hungarian National Institute of Oncology has just closed a single-center randomized clinical study. The Optimal Treatment of the Axilla-Surgery or Radiotherapy (OTOASOR) trial compares completion axillary lymph node dissection (cALND) with regional nodal irradiation (RNI) in patients with sentinel lymph n...
journal_title:Clinical breast cancer
pub_type: 杂志文章,随机对照试验
doi:10.1016/j.clbc.2013.04.004
更新日期:2013-10-01 00:00:00
abstract::Over the past 30 years there has been an increased use of neoadjuvant (or primary) chemotherapy for treating patients with breast cancer. However, while it is clear that chemotherapy given in the adjuvant setting after surgery does prolong patients' overall and disease-free survival, the evidence that chemotherapy in ...
journal_title:Clinical breast cancer
pub_type: 临床试验,杂志文章,随机对照试验
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更新日期:2002-10-01 00:00:00
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journal_title:Clinical breast cancer
pub_type: 杂志文章
doi:10.1016/j.clbc.2018.05.006
更新日期:2018-10-01 00:00:00
abstract::Breast cancer is the most common type of cancer among women and the second leading cause of cancer death in the United States. Metastatic breast cancer is considered incurable, and treatment is aimed at palliating symptoms, achieving remission, and prolonging survival. Treatment options for metastatic disease vary bas...
journal_title:Clinical breast cancer
pub_type: 杂志文章,评审
doi:10.1016/j.clbc.2011.07.001
更新日期:2012-02-01 00:00:00
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journal_title:Clinical breast cancer
pub_type: 杂志文章
doi:10.1016/j.clbc.2020.09.005
更新日期:2020-09-10 00:00:00
abstract:BACKGROUND:Although brain metastases (BM) are associated with poor prognosis, patients with human epidermal growth factor receptor 2 (HER2) overexpressing (HER2+) breast cancer (BC) with BM who are treated with anti-HER2 therapy have a relatively longer survival after BM diagnosis compared with other subtypes and HER2+...
journal_title:Clinical breast cancer
pub_type: 杂志文章
doi:10.1016/j.clbc.2017.12.009
更新日期:2018-10-01 00:00:00
abstract::Traditionally in the treatment of primary breast cancer, axillary lymph node dissection (ALND) plays an important role. However, a substantial and increasing percentage of patients appear to have no nodal involvement and have been subjected to ALND unnecessarily. The first reason to perform an ALND is axillary nodal s...
journal_title:Clinical breast cancer
pub_type: 杂志文章,评审
doi:10.3816/cbc.2002.n.034
更新日期:2002-12-01 00:00:00
abstract::This article discusses the rationale for 2 methods of making estimates of the benefit of letrozole as extended adjuvant hormonal therapy after 5 years of tamoxifen. It uses information from the Overview metaanalyses to develop general rules for making estimates of remaining risk of relapse for women completing 5 years...
journal_title:Clinical breast cancer
pub_type: 杂志文章
doi:10.3816/cbc.2004.n.047
更新日期:2004-10-01 00:00:00
abstract::During the past decade, improvements in treatment-planning tools, computer and imaging technologies, and new therapeutic modalities have allowed radiation to be delivered in a conformal fashion while minimizing treatment toxicity. It is important that physicians involved in breast cancer treatment recognize the numero...
journal_title:Clinical breast cancer
pub_type: 杂志文章,评审
doi:10.3816/cbc.2004.n.002
更新日期:2004-02-01 00:00:00
abstract::In addition to classical clinicopathologic factors, such as hormone receptor positivity, human epidermal growth factor receptor 2 (HER2) status, and tumor size, grade, and lymph node status, a number of commercially available genomic tests may be used to help inform treatment decisions for early breast cancer patients...
journal_title:Clinical breast cancer
pub_type: 杂志文章,评审
doi:10.1016/j.clbc.2020.01.001
更新日期:2020-06-01 00:00:00
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journal_title:Clinical breast cancer
pub_type: 杂志文章,评审
doi:10.3816/cbc.2003.n.030
更新日期:2003-10-01 00:00:00
abstract::Post-breast cancer treatment-related angiosarcomas were first observed in lymphedematous extremities after mastectomy and are now being reported with increasing frequency after lumpectomy and radiation. A case history is presented of a BRCA2 carrier who had a postmastectomy chest wall angiosarcoma but had neither ther...
journal_title:Clinical breast cancer
pub_type: 杂志文章
doi:10.3816/CBC.2008.n.066
更新日期:2008-12-01 00:00:00
abstract::Kaposiform hemangioendothelioma (KHE) is a locally aggressive vascular tumor that usually occurs in infants. It is commonly associated with Kasabach-Merritt syndrome and lymphangiomatosis. It generally originates on the skin, later affecting deeper tissue by infiltrative growth. Although visceral involvement is very u...
journal_title:Clinical breast cancer
pub_type: 杂志文章
doi:10.1016/j.clbc.2011.03.008
更新日期:2011-04-01 00:00:00