Abstract:
PURPOSE:The significance of HER-2/neu results obtained by immunohistochemical analyses (IHC) which are neither negative nor strongly positive is controversial. The incidence of fluorescence in situ hybridization (FISH) positivity in these tumors is small and the implication is that these borderline results represent laboratory misclassification. We analyzed the tumor characteristics of these HER-2/neu borderline tumors to determine if they represent a unique tumor type. METHODS:HER-2/neu status was determined by image analysis (IA) of IHC sections in 669 cases of invasive breast cancer. Borderline cases were reflexed to FISH to determine gene status. HER-2/neu results were compared to tumor morphology and other tumor markers. RESULTS:HER-2/neu was negative, borderline and positive in 69.5, 15.8, and 14.6% of cases, respectively. HER-2/neu amplification was present in 17.3% of borderline cases. The borderline group is significantly different from the HER-2/neu positive group for all parameters studied except Ki-67. Compared to the HER-2/neu negative group, the borderline group showed a significantly higher HER-2/neu gene copy number and a trend towards lower progesterone receptor expression (p=0.058). Compared to the HER-2/neu negative group, the HER-2/neu borderline/FISH-negative group showed significantly lower PR expression. Compared to the HER-2/neu positive group, the HER-2/neu borderline/FISH positive group showed significant differences with multiple parameters. CONCLUSION:Borderline HER-2/neu tumors are a unique tumor type and do not represent laboratory imprecision. Hormone receptor alterations are associated with early changes in HER-2/neu expression. While IA is capable of detecting these changes, current FISH methodology is not.
journal_name
Breast Cancer Res Treatjournal_title
Breast cancer research and treatmentauthors
Killeen JL,Ortega-Lopez A,Shaha J,Shaha SH,Fu JBdoi
10.1007/s10549-005-9136-1subject
Has Abstractpub_date
2006-07-01 00:00:00pages
99-108issue
1eissn
0167-6806issn
1573-7217journal_volume
98pub_type
杂志文章abstract::In epithelial-to-mesenchymal transition (EMT) epithelial cancer cells achieve mesenchymal features, essentially helping them to metastasize. There is some evidence that EMT could be increased in triple-negative (TNBC) or basal-like breast cancers, although more precise mechanisms considering e.g. EMT-regulating transc...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-013-2442-0
更新日期:2013-02-01 00:00:00
abstract::Currently, there are no applied molecular markers to aid in predicting risk of carcinoma in situ (CIS) progression to invasive cancer, and therefore, all women diagnosed with CIS undergo surgery. Standard assessment of protein expression in fixed tissue by immunohistochemistry (IHC) is not quantitative and hence is no...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-010-1227-y
更新日期:2011-09-01 00:00:00
abstract::Tamoxifen is metabolized into endoxifen, a potent antagonist of the estrogen receptor, in part through cytochrome p450 (CYP) 2D6. Genotypic variation in CYP2D6 affects endoxifen levels, and some have argued that patients who do not efficiently metabolize tamoxifen might wish to consider alternative hormonal treatments...
journal_title:Breast cancer research and treatment
pub_type: 临床试验,杂志文章
doi:10.1007/s10549-013-2700-1
更新日期:2013-10-01 00:00:00
abstract::Fresh organically grown pomegranates (Punica granatum L.) of the Wonderful cultivar were processed into three components: fermented juice, aqueous pericarp extract and cold-pressed or supercritical CO2-extracted seed oil. Exposure to additional solvents yielded polyphenol-rich fractions ('polyphenols') from each of th...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1023/a:1014405730585
更新日期:2002-02-01 00:00:00
abstract:PURPOSE:Time to surgery (TTS) is a potentially modifiable factor associated with survival after breast cancer diagnosis and can serve as a proxy for quality of oncologic care coordination. We sought to determine whether factors associated with delays in TTS vary between patients who receive neoadjuvant systemic therapy...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-020-06012-7
更新日期:2020-11-18 00:00:00
abstract::We demonstrate here that functional NMDAR1 and NMDAR2 receptors are expressed by Mcf-7 and SKBR3 breast cancer cell lines, and possibly by most or all high-grade breast tumors, and that these receptors are important for the growth of human breast cancer xenografts in mice. RT-PCR demonstrated mRNA for both NMDAR1 and ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-009-0556-1
更新日期:2010-07-01 00:00:00
abstract::Theophylline reduces cell number in MDA-MB-231 cells through mechanisms over and above phosphodiesterase inhibition. In the current study, we used an intracellular fluorescent dye to show that theophylline and, to a much greater extent, 3-isobutyl-1-methylxanthine, evoke the generation of reactive oxygen species and a...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1023/a:1010603816003
更新日期:2001-03-01 00:00:00
abstract::A number of endocrine treatments for advanced breast cancer seem to affect serum insulin-like growth factor I (IGF-I). The aim of our study was to investigate IGF-I levels in 33 postmenopausal patients with metastatic disease receiving the selective aromatase inhibitor 4-hydroxyandrostenedione: 250 mg (16 patients) or...
journal_title:Breast cancer research and treatment
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF00666055
更新日期:1994-01-01 00:00:00
abstract::Few studies have assessed the agreement between subjects' self-report and medical records among patients with breast cancer (BC), and none has addressed this issue in low-income women with BC. We assessed the level of agreement between self-report and medical records data for key BC treatment and prognostic characteri...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-009-0447-5
更新日期:2010-02-01 00:00:00
abstract::The present study consists of 1,238 women with unilateral breast cancer treated with modified radical mastectomy living in the geographic area of Haukeland Hospital. Their weight and height had been measured years before presentation of the disease. Age-adjusted Quetelet's index (weight/height2) showed that obese wome...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF01807157
更新日期:1996-01-01 00:00:00
abstract::The early spread of tumor cells in primary breast cancer patients may occur either through lymphatic or hematogenous dissemination. Lymph node (LN) status and presence of disseminated tumor cells (DTC) in bone marrow (BM) are independent predictors of poor outcome. It is unknown which factors determine one or the othe...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-011-1802-x
更新日期:2012-01-01 00:00:00
abstract::HER2/neu overexpression leads to poorer prognosis and higher risk of disease reoccurrence in breast cancer patients. The causative factors responsible for increasing HER2/neu expression levels on mammary cells are not known. We investigated whether factors associated with inflammation or metastasis could induce HER2/n...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-012-2191-5
更新日期:2012-09-01 00:00:00
abstract:PURPOSE:In rodents, a single exercise bout performed 24 h prior to a single doxorubicin treatment provides cardio-protection. This study investigated whether performing this intervention prior to every doxorubicin treatment for breast cancer reduced subclinical cardiotoxicity and treatment symptoms. METHODS:Twenty-fou...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,随机对照试验
doi:10.1007/s10549-017-4554-4
更新日期:2018-02-01 00:00:00
abstract::Node-positive breast carcinoma is an aggressive disease. Postmenopausal patients benefit from antiestrogen adjuvant therapy. Predictive markers could, however, be useful in selecting these patients for different modalities of adjuvant therapy. Recently, we showed that MMP-2 (72 kD type IV collagenase/gelatinase A) is ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1023/a:1006458601568
更新日期:2001-01-01 00:00:00
abstract::In view of the essential role of transforming growth factorβ1 (TGFB1) on both inhibiting the development of early benign breast tumors as well as promoting tumor invasion, the association of TGFB1 L10P polymorphism and breast cancer risk has been widely reported, but results of previous studies were somewhat contradic...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,meta分析,评审
doi:10.1007/s10549-010-0843-x
更新日期:2010-11-01 00:00:00
abstract:PURPOSE:In Brazil, the available cancer registries are deficient in number and quality and, hence, little information is known regarding sociodemographic, clinicopathological characteristics, treatment patterns, and outcomes of breast cancer (BC) patients. We performed the AMAZONA III/ GBECAM 0115 study and in this ana...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-020-05831-y
更新日期:2020-10-01 00:00:00
abstract::The contribution of BRCA1 and BRCA2 to breast cancer incidence in Brazil has not yet been explored. In order to estimate the proportion of breast cancers due to BRCA1 and BRCA2 mutations in Brazil, we conducted a study of unselected breast cancer patients from Rio de Janeiro, Brazil. We enrolled 402 women with breast ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-006-9378-6
更新日期:2007-07-01 00:00:00
abstract:PURPOSE:The purpose of this study was to determine the effects of an 8-week high-intensity interval training (HIIT) intervention on vascular endothelial function, measured as brachial artery flow-mediated dilation (baFMD), and vascular wall thickness measured by carotid intima media thickness (cIMT) in breast cancer pa...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,随机对照试验
doi:10.1007/s10549-019-05332-7
更新日期:2019-09-01 00:00:00
abstract:PURPOSE:A considerable part of ductal carcinoma in situ (DCIS) lesions may never progress into invasive breast cancer. However, standard treatment consists of surgical excision. Trials aim to identify a subgroup of low-risk DCIS patients that can safely forgo surgical treatment based on histologic grade, which highligh...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-018-05082-y
更新日期:2019-04-01 00:00:00
abstract::The effect of obesity and fat distribution on survival of breast cancer patients was studied prospectively in 241 women with a natural menopause who participated in a breast cancer screening project, the DOM-project in Utrecht, The Netherlands. Mean follow-up time was 9.1 years and endpoint of interest was death from ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF00665785
更新日期:1995-05-01 00:00:00
abstract::[3H]Tamoxifen Aziridine ([3H]TAZ) is a derivative of the antiestrogen tamoxifen that covalently labels the Estrogen Receptor (ER), and perhaps other uncharacterized proteins. In a previous article we described that [3H]TAZ binds to a cytosolic protein from human uterine tissues that shares some, but not all, the ER pr...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1023/a:1006062510883
更新日期:1998-07-01 00:00:00
abstract::We determined the expression of two transcriptional variants of thyroid hormone receptor alpha (THRα1 and THRα2) in samples from a cohort of breast cancer patients and correlated expression levels with survival. 130 women who were diagnosed with invasive breast carcinoma between 2007 and 2008 were included. Representa...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-014-3235-9
更新日期:2015-01-01 00:00:00
abstract::Inheritance is believed to play a major role in 5-10% of breast cancer. The breast cancer susceptibility genes BRCA1 and BRCA2 are estimated to account for more than half of these cases. Recent studies have suggested that breast cancers associated with BRCA1 germline mutations are of higher grade than sporadic cases. ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1023/a:1005853022804
更新日期:1998-01-01 00:00:00
abstract:INTRODUCTION:Since older patients with breast cancer are underrepresented in clinical trials, an oncogeriatric approach is advocated to guide treatment decisions. However, the effect on outcomes is unclear. The aim of this study was to compare treatments and outcomes between patients treated in an oncogeriatric and a s...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-020-05860-7
更新日期:2020-11-01 00:00:00
abstract:PURPOSE:Although tamoxifen remains the frontline treatment for ERα-positive breast cancers, resistance to this drug limits its clinical efficacy. Most tamoxifen-resistant patients retain ERα expression which may support growth and progression of breast cancers. Therefore, we investigated epigenetic regulation of ERα th...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-019-05517-0
更新日期:2020-02-01 00:00:00
abstract::Several population-based and family-based studies have demonstrated that germline mutations of the PALB2 gene (Partner and Localizer of BRCA2) are associated with an increased risk of breast cancer. Distinct mutation frequencies and spectrums have been described depending on the population studied. Here we describe th...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-015-3625-7
更新日期:2015-12-01 00:00:00
abstract::The enumeration of circulating tumor cells (CTCs) provides important prognostic values in patients with metastatic breast cancer. Recent studies indicate that individual CTCs form clusters and these CTC-clusters play an important role in tumor metastasis. We aimed to assess whether quantification of CTC-clusters provi...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-015-3636-4
更新日期:2015-12-01 00:00:00
abstract::The Rho family of GTPases has been intensively studied for their roles in signal transduction processes leading to cytoskeletal-dependent responses, including cell migration and phagocytosis. In addition, they are important regulators of cell cycle progression and affect the expression of a number of genes, including ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,评审
doi:10.1023/B:BREA.0000018423.47497.c6
更新日期:2004-03-01 00:00:00
abstract::The association of CYP19 gene polymorphisms with breast cancer has been widely reported, but results of previous studies were somewhat contradictory and underpowered. In order to overcome the limitations of individual study and to understand the real situation, we conducted a systematic review and meta-analysis includ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,meta分析,评审
doi:10.1007/s10549-009-0693-6
更新日期:2010-07-01 00:00:00
abstract::Tamoxifen is currently the adjuvant treatment of choice for postmenopausal women with hormone-sensitive breast cancer. However, in the treatment of postmenopausal women with advanced disease, the third-generation aromatase inhibitor anastrozole ('Arimidex') has been shown to be at least as effective as tamoxifen, and ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,评审
doi:10.1023/a:1025455130476
更新日期:2003-01-01 00:00:00