Abstract:
:Wide fluctuations in results obtained by different laboratories for the content of estrogen receptors from a single source of tissue powder were reported by several investigators at the 1979 NCI Consensus Committee Meeting for Steroid Receptors in Breast Cancer and were further supported by data collected by our laboratory for the Eastern Cooperative Oncology Group. In a multilab study the inconsistency in the receptor content is a product of the variations associated with the assay procedures used by different laboratories and those due to unavoidable daily changes in the experimental conditions within each laboratory. In this report we present data on the variation of estrogen receptor measurements obtained by a single laboratory for any single source of tissue powder repeatedly analyzed. A retrospective analysis of the data collected on the receptor content of several different batches of calf uteri analyzed on different days (inter-assay variation) under uniform conditions revealed a coefficient of variation averaging +/- 35% (standard deviation divided by mean X 100). Experiments showed that the fluctuations in the receptor yield from aliquots of the same tissue powder are primarily an effect of the homogenization step that precedes cytosol preparation. Therefore, for establishing quality control, distribution of lyophilized cytosols should precede lyophilized powders to test the efficiency of performance of laboratories. A homogenizer designed to minimize thermal denaturation is also essential.
journal_name
Breast Cancer Res Treatjournal_title
Breast cancer research and treatmentauthors
Raam S,Gelman R,Faulkner J,White GM,Cohen JLdoi
10.1007/BF01805724subject
Has Abstractpub_date
1982-01-01 00:00:00pages
111-7issue
1eissn
0167-6806issn
1573-7217journal_volume
2pub_type
杂志文章abstract:OBJECTIVES:To validate the newly proposed American Joint Committee on Cancer (AJCC) prognostic staging system for breast cancer. METHODS:Surveillance, epidemiology, and end results (SEER) database (2010-2014) was accessed. Cumulative incidence function was conducted (through assessment of sub-distribution hazard) acco...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-017-4577-x
更新日期:2018-02-01 00:00:00
abstract:PURPOSE:Choosing Wisely (CW)® was created by the American Board of Internal Medicine (ABIM) to promote patient-physician conversations about unnecessary medical interventions. Similarly, other countries created their own panels of experts called "CW® campaigns" which review recommendations submitted by that country's o...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,评审
doi:10.1007/s10549-020-06009-2
更新日期:2020-11-06 00:00:00
abstract::Although high mammographic density is a risk factor for postmenopausal breast cancer, its etiology remains unclear. We examined whether serum and dietary cholesterol, which increase breast cancer risk and are involved in endogenous estrogen formation, were associated with increased mammographic density. We conducted a...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1007/s10549-010-0927-7
更新日期:2011-01-01 00:00:00
abstract:BACKGROUND:Seroma formation, wound healing and fluid drainage are a concern for both surgeons and patients. Excessive fluid production can result in seroma formation, and inadequate drainage of seromas is known to cause infection, pain, discomfort and longer periods of hospitalisation. Postoperative exercises given to ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,评审
doi:10.1007/s10549-004-4727-9
更新日期:2005-04-01 00:00:00
abstract::Oestrogen receptor (ER) levels are usually maintained on acquisition of tamoxifen resistance in the clinic, however, tumour re-growth is associated with increased expression of epidermal growth factor receptor (EGFR) and activation of the mitogen activated protein kinase (MAPK) pathway. In the present study we have us...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1023/A:1025484908380
更新日期:2003-09-01 00:00:00
abstract::Human breast cancer xenografts only rarely invade and metastasize in nude mice, and have therefore only had limited use as a model for studying mechanisms involved in breast cancer spreading. However, recent reports describe differences not only between various cell lines but also between strains of immune-deficient m...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF01833265
更新日期:1993-01-01 00:00:00
abstract::Medroxyprogesterone acetate (MPA) is well recognized to have beneficial effects for the treatment of advanced breast cancer which are comparable to those achieved with other forms of endocrine therapy. Using mammary tumors induced in the rat by dimethylbenz(a)anthracene (DMBA) as a model, we have studied the possibili...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF00665803
更新日期:1993-01-01 00:00:00
abstract::Adiponectin is one of the most important adipocytokines secreted from adipose tissue. In addition to its effects on glucose and fatty acid metabolism, it has been reported that adiponectin has a direct growth-inhibitory effect on breast cancer cells. However, it still remains to be established how adiponectin affects ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-007-9874-3
更新日期:2008-12-01 00:00:00
abstract::The population-based Ontario Breast Screening Program (OBSP) provides two-yearly screening by both nurse examiner clinical breast examination (CBE) and two-view mammography to women aged 50 to 69. CBE alone accounts for about 5% of cancer detection. The purpose of this study was to determine whether CBE information af...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1023/a:1005990806919
更新日期:1998-03-01 00:00:00
abstract::Fulvestrant fIRst-line Study comparing endocrine Treatments is a phase II, randomized, open-label study comparing fulvestrant 500 mg with anastrozole 1 mg as first-line endocrine therapy for postmenopausal women with hormone receptor-positive (HR+) advanced breast cancer. At data cut-off, only 36 % of patients had pro...
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/s10549-012-2192-4
更新日期:2012-11-01 00:00:00
abstract:PURPOSE:Whether young age at diagnosis of breast cancer is an independent risk factor for death remains controversial, and the question whether young age should be considered in treatment decisions is still to be answered. METHODS:From a population-based cohort of 22,017 women with breast cancer, all women <35 years (...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-016-3983-9
更新日期:2016-11-01 00:00:00
abstract::ALIQUOT (Anastrozole vs. Letrozole, an Investigation of Quality Of Life and Tolerability) was a prospective, open-label, randomized pharmacodynamic study designed to assess the effects of aromatase inhibitors (AIs) on bone turnover in healthy postmenopausal women with estrogen receptor-positive breast cancer. Ninety-f...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,随机对照试验
doi:10.1007/s10549-009-0646-0
更新日期:2010-02-01 00:00:00
abstract::Axillary management in breast cancer is becoming increasingly conservative. This approach is based on the identification of low axillary burden on sentinel node biopsy (SNB). The modern practice of routine pre-operative axillary ultrasound has meant that patients are 'fast tracked' to axillary node clearance (ANC) in ...
journal_title:Breast cancer research and treatment
pub_type: 社论
doi:10.1007/s10549-017-4313-6
更新日期:2017-09-01 00:00:00
abstract::The basal-like or basal phenotype (BP) class of breast cancers have recently attracted attention as a poor prognostic form of breast cancer. However, BP appears to encompass biologically and clinically heterogeneous tumours, resulting in a lack of consensus definition of BP. We analysed 48,000 gene transcripts in 132 ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-009-0450-x
更新日期:2010-05-01 00:00:00
abstract:BACKGROUND:There are concerns regarding local toxicity when IORT is applied in Asian women with a smaller breast volume than that of Western women. Trials are required to develop safety profiles for this technique. The aim of this trial was to evaluate acute toxicity after intra-operative radiotherapy (IORT) with low-e...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-018-5038-x
更新日期:2019-02-01 00:00:00
abstract::A novel region of amplification in breast tumors was recently identified on chromosome 17q23. Extensive mapping of the amplicon by Southern blotting and fluorescence in situ hybridization (FISH) in breast cancer cell lines determined that the amplicon can be up to 4 Mbp in size and may contain 50 genes. Copy number an...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,评审
doi:10.1023/a:1023081624133
更新日期:2003-04-01 00:00:00
abstract:PURPOSE:Tobacco smoking is a risk factor in several cancers, yet its roles as a putative etiologic exposure or poor prognostic factor in breast cancer are less clear. Altered DNA methylation contributes to breast cancer development and may provide a mechanistic link between smoking and gene expression changes leading t...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-017-4178-8
更新日期:2017-06-01 00:00:00
abstract::Mammosphere culture has been used widely for the enrichment of mammary epithelial stem cells and breast cancer stem cells (CSCs). Epithelial-to-mesenchymal transition (EMT) also induces stem cell features in normal and transformed mammary cells. We examined whether mammosphere culture conditions per se induced EMT in ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-011-1534-y
更新日期:2012-02-01 00:00:00
abstract:PURPOSE:Neutropenia is the most common toxicity of CDK4/6 inhibitors, causing frequent dose interruptions. However, CDK4/6 inhibitor-induced neutropenia shows a benign clinical course in contrast to that caused by chemotherapy. Here, we investigated the safety of a new dose scheme for palbociclib, which avoids dose del...
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
abstract::Histological grading of 160 primary infiltrating breast carcinomas showed that both oestrogen and progesterone receptor status are strongly related to grade, tumours that are receptor positive tending to be of lower grade than the receptor negative. The nuclear factors used in grading were those that determined this a...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF01806938
更新日期:1982-01-01 00:00:00
abstract::Over the last several years, evidence has accumulated to support the idea that rare Ha-ras polymorphisms are associated with inherited susceptibility to certain human cancers. A recent epidemiologic study conducted at our institution found a significant association specifically with breast cancer, although the mechani...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF00694750
更新日期:1995-07-01 00:00:00
abstract::The protective effect of vegetables on the risk of breast cancer recurrence is uncertain. We sought to evaluate the association between breast cancer recurrence and vegetable intake including analyses stratified on tamoxifen use. Experimental evidence of anti-carcinogenic activity of phytochemicals in cruciferous vege...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-010-1014-9
更新日期:2011-01-01 00:00:00
abstract:PURPOSE:To investigate the effects of cognitive function on discontinuation of hormonal therapy in breast cancer survivors ages 65+ ("older"). METHODS:Older breast cancer survivors with invasive, non-metastatic disease, and no reported cognitive difficulties were recruited from 78 Alliance sites between 2004 and 2011....
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,多中心研究
doi:10.1007/s10549-017-4353-y
更新日期:2017-10-01 00:00:00
abstract::A new method of measuring gene copy number in small samples of DNA was used to measure amplification of the erbB-2 gene and of chromosome 20q in breast cancer. This method, termed 'differentially competitive polymerase chain reaction' (DC-PCR) combines the advantages of two other techniques for measuring amplification...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF01806816
更新日期:1996-01-01 00:00:00
abstract::The present experiments were designed to evaluate in vivo the differential sensitivity of tumor cell subpopulations to hormone and polyamine manipulations using the hormone-responsive N-nitrosomethyl-urea (NMU)-induced rat mammary tumor. NMU tumor bearing rats were randomly assigned to control, ovariectomy, alpha-difl...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF01806367
更新日期:1991-01-01 00:00:00
abstract::We characterized the structure and the function of insulin receptors isolated from 10 human breast cancer specimens. We observed that the insulin receptor content, as determined by a specific radioimmunoassay, was four fold increased in human breast cancer tissue when compared to normal breast tissues. In both cancer ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF00662403
更新日期:1993-01-01 00:00:00
abstract:BACKGROUND:Several recent epidemiologic studies examined the association between breast cancer risk and an inherited, single-nucleotide polymorphism in the HER2 gene, codon 655 G to A, which leads to an amino acid substitution of Ile to Val. Results of previous studies have been mixed, with most studies showing no asso...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1023/a:1024068525763
更新日期:2003-06-01 00:00:00
abstract::Breast cancer is a heterogeneous entity composed of distinct molecular subgroups with different molecular and clinical features. We analyzed the association between molecular breast cancer subgroups, age at diagnosis, and prognosis in a compilation of publicly available gene expression datasets. Affymetrix gene expres...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-015-3491-3
更新日期:2015-08-01 00:00:00
abstract::The present preclinical study was designed to evaluate a new combination therapy comprised of the aromatase inhibitor anastrozole (ANA) and the oral fluoropyrimidines, UFT and S-1 against the estrogen receptor (ER)-positive human breast cancer cell line MCF-7/Arom 14, which was stably transfected with the cDNA of huma...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-010-1141-3
更新日期:2011-07-01 00:00:00
abstract:PURPOSE:Existing high-risk clinic models focus on patients with known risk factors, potentially missing many high-risk patients. Here we describe our experience implementing universal risk assessment in an ambulatory breast center. METHODS:Since May 2017, all breast center patients completed a customized intake survey...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-018-05116-5
更新日期:2019-05-01 00:00:00