Abstract:
:Tamoxifen is the widespread anti-hormonal compound used for the treatment of human breast cancer. It is admitted that its effects are mediated via estrogen receptors (ER) but the molecular basis of its activity has yet to be clearly defined. In this work, we have developed a new image cytometry procedure in order to clarify the interactions between steroid receptors and tamoxifen at the cell cycle kinetic level. On untreated cells, an increase of ER level and a decrease of progesterone receptor (PR) level during the G0/G1 phase were demonstrated. Then, the ER and PR levels fell during the S-phase until the beginning of G2/M phase, where an increase was observed, especially for PR. These results suggest that ER is synthesized preferentially during the G0/G1 transition and PR during the S/G2 transition. After short-term tamoxifen treatment an augmentation of ER level was observed which was not dose-dependent, suggesting an increase in receptor translation rather than an augmentation of ER synthesis. PR level declined in the majority of the population leading to a selection of a subset of proliferating PR negative cells after treatment. These data demonstrate that the synthesis of steroid receptors is linked with the progression of cells through the cell cycle and indicate that tamoxifen blocks MCF-7 cells in G1 via its interactions with ER. Our multifluorescence imaging procedure appears to provide a rapid and quantitative approach which is useful for investigating alterations in steroid receptors after endocrine treatment.
journal_name
Breast Cancer Res Treatjournal_title
Breast cancer research and treatmentauthors
Rostagno P,Caldani C,Lahlou Bdoi
10.1007/BF01806634subject
Has Abstractpub_date
1996-01-01 00:00:00pages
77-87issue
1eissn
0167-6806issn
1573-7217journal_volume
37pub_type
杂志文章abstract::Psoriasin (S100A7) is a calcium-binding protein that has shown to be highly expressed in high-grade ductal carcinoma in situ (DCIS) and a subset of invasive breast cancers. However, its role in invasion and metastasis is not very well known. In this study, we have shown that S100A7 differentially regulates epidermal g...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-013-2491-4
更新日期:2013-04-01 00:00:00
abstract:PURPOSE:This study investigates weight trajectories in pre- versus postmenopausal breast cancer (BC) survivors diagnosed with hormone receptor-positive tumors, with a specific focus on discerning menopausal status and type of endocrine treatment (ET) as risk factors for weight gain during ET. METHODS:We conducted a re...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-017-4501-4
更新日期:2018-01-01 00:00:00
abstract::In 141 postmenopausal node-positive patients with primary breast cancer, routine biochemical markers (alkaline phosphatase, gamma-glutamyl transpeptidase, carcinoembryonic antigen), and chest x-ray, in combination with history and clinical examination, have been performed at 3 monthly intervals for at least 2 years. S...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF01807283
更新日期:1988-07-01 00:00:00
abstract:PURPOSE:Inflammatory breast cancer (IBC) is the most aggressive form of locally advanced breast cancer (LABC). The IBC phenotype is characterized by an infiltrative growth pattern, increased (lymph)angiogenesis and the propensity to invade dermal lymphatics. In pancreatic cancer, interactions between caveolin-1 and Rho...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-005-9002-1
更新日期:2006-02-01 00:00:00
abstract:PURPOSE:We studied which, age of the patient or density of the breast accounts for the sensitivity of mammography and ultrasonography (US). Furthermore we studied whether the overall impression on the density of the breast or the density in tumour area accounts for the sensitivity of mammography and ultrasonography. M...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1023/a:1010627527026
更新日期:2001-05-01 00:00:00
abstract::Uncontrolled proliferation is one of the hallmarks of breast cancer. We have previously identified the human Ecd protein (human ortholog of Drosophila Ecdysoneless, hereafter called Ecd) as a novel promoter of mammalian cell cycle progression, a function related to its ability to remove the repressive effects of Rb-fa...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-011-1946-8
更新日期:2012-07-01 00:00:00
abstract::We have compared by RNA in situ hybridisation on serial cryo-sections the distribution of cathepsin D (cathD), stromelysin 3 (strom-3), and urokinase plasminogen activator (UPA) gene expression in different tissues of human benign and malignant mammary tumors. Cath-D expression was found to be higher in adenocarcinoma...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF01806676
更新日期:1996-01-01 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 AZURE trial is an ongoing phase III, academic, multi-centre, randomised trial designed to evaluate the role of zoledronic acid (ZOL) in the adjuvant therapy of women with stage II/III breast cancer. Here, we report the safety and tolerability profile of ZOL in this setting. Eligible patients received (neo)adjuvant...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,随机对照试验
doi:10.1007/s10549-011-1429-y
更新日期:2011-06-01 00:00:00
abstract:PURPOSE:In the ACOSOG Z0011 trial, completing axillary lymph node dissection (cALND) did not benefit patients with T1-T2 cN0 early breast cancer and 1-2 positive sentinel lymph nodes (SLN) undergoing breast-conserving surgery (BCT). This paper reports cALND rates in the clinical routine for patients who had higher (T3-...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-020-05876-z
更新日期:2020-11-01 00:00:00
abstract::PIN1, an isomerase that causes conformational changes in proteins, plays an important role in mammary epithelial cell growth both physiologically and pathologically. Thus, genetic variants in the PIN1 gene may alter protein function and cancer risk. We have previously demonstrated an association between a PIN1 promote...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-009-0682-9
更新日期:2010-07-01 00:00:00
abstract:PURPOSE:Patients with spontaneous nipple discharge (SND) who have neither clinically palpable masses nor evidence of disease on imaging with mammogram and/or ultrasound are traditionally investigated with galactogram and duct excision. As breast imaging improves, it has raised the question whether galactography and mic...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-018-05109-4
更新日期:2019-04-01 00:00:00
abstract::Identification and characterization of tumor subtypes using gene expression profiles of triple negative breast cancer patients. Microarray data of four breast cancer studies were pooled and evaluated. Molecular subtype classification was performed using random forest and a novel algorithm for feature extraction via co...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-012-2177-3
更新日期:2012-08-01 00:00:00
abstract:PURPOSE:The American Society of Clinical Oncology recommends concurrent palliative care (PC) for patients with metastatic cancer. Recent data show benefits of early PC (at least 90 days before death). However, little is known about PC among patients who die from metastatic breast cancer. METHODS:Patients with metastat...
journal_title:Breast cancer research and treatment
pub_type: 临床试验,杂志文章
doi:10.1007/s10549-017-4556-2
更新日期:2018-02-01 00:00:00
abstract::Lapatinib and capecitabine combination therapy is effective in trastuzumab-resistant human epidermal growth factor receptor 2 (HER2)-positive breast cancer. We investigated the biomarkers from serum of patients receiving lapatinib and capecitabine Patients received lapatinib 1,250 mg once daily and capecitabine 2,000 ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,多中心研究
doi:10.1007/s10549-010-1200-9
更新日期:2011-01-01 00:00:00
abstract::Conflicting opinions exist concerning clinical and pathological presentation, as well as evolution and prognosis, of breast cancer in young women. The roles of associated pregnancy and lactation on these parameters is also unclear. These two conditions are studied in the present work through the comparison of two brea...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF02235745
更新日期:1985-01-01 00:00:00
abstract::Nipple-sparing mastectomy (NSM) provides a cosmetic and psychological benefit for patients, but concerns on nipple involvement (NI) of tumor continue to persist. Several studies have reported factors for predicting NI, but the results were inconsistent and uncomprehensive, making patient selection difficult. The aim o...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,meta分析,评审
doi:10.1007/s10549-015-3385-4
更新日期:2015-06-01 00:00:00
abstract::Adjuvant therapy for hormone receptor (HR) positive postmenopausal breast cancer patients includes aromatase inhibitors (AI). While both the non-steroidal AI letrozole and the steroidal AI exemestane decrease serum estrogen concentrations, there is evidence that exemestane may be less detrimental to bone. We hypothesi...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-015-3608-8
更新日期:2015-11-01 00:00:00
abstract::Taxanes are being used for the treatment of breast cancer. However, cancer cells frequently develop resistance to these drugs with the subsequent recurrence of the tumor. MDA-MB-231 and T-47D breast cancer cell lines were used to assess the effect of paclitaxel treatment on apoptosis and cell cycle, the possible mecha...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-011-1864-9
更新日期:2012-06-01 00:00:00
abstract::We report a series of breast cancer patients with invasive skin and nail infections with Staphylococcus species that we attribute to the addition of pertuzumab to trastuzumab-based therapy. With the suspicion of an increased incidence of cutaneous infection in patients treated with pertuzumab and trastuzumab-based che...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,随机对照试验
doi:10.1007/s10549-014-3190-5
更新日期:2014-12-01 00:00:00
abstract::A detailed analysis of the immune system response has been performed during the development and progression of dimethylbenz(a)anthracene (DMBA)-induced rat mammary tumors. For this aim, a number of immune parameters (thymocyte and splenocyte proliferative response to T-dependent mitogens, antibody production, lymphocy...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF00665692
更新日期:1993-09-01 00:00:00
abstract::A class distribution of plasma cells associated with the stroma in twenty-eight cases of medullary carcinoma of the breast was investigated by an unlabeled immunoperoxidase method. The stroma of the medullary carcinomas tested was found to contain predominantly IgG plasma cells except in two cases. Stroma of the other...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF01806794
更新日期:1986-01-01 00:00:00
abstract:BACKGROUND:The homeobox (HOX) family consists of 39 genes whose expressions are tightly controlled and coordinated within the family, during development. We performed a comprehensive analysis of this gene family in cancer settings. METHODS:Gene correlation analysis was performed using breast cancer data available in T...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-020-06087-2
更新日期:2021-01-18 00:00:00
abstract::The aim of this study was to compare the effects on health-related quality of life (HRQOL) of two treatment regimens in the TEX trial during 9 month from random assignment, with emphasis on the 2- and 9-months assessments. A total of 287 patients were randomized to treatment in 3-week cycles with either epirubicin plu...
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/s10549-010-1084-8
更新日期:2010-10-01 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::The Gail model is considered the best available means for estimating risk of breast cancer development, but it has not yet been applied systematically and validated in Turkish female population. This study was designed to evaluate the performance of the Gail model for Turkish female population. Additionally duration o...
journal_title:Breast cancer research and treatment
pub_type: 临床试验,杂志文章
doi:10.1007/s10549-009-0541-8
更新日期:2010-04-01 00:00:00
abstract::The complexity of breast cancer biology makes it challenging to analyze large datasets of clinicopathologic and molecular attributes, toward identifying the key prognostic features and producing systems capable of predicting which patients are likely to relapse. We applied machine-learning techniques to analyze a set ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-009-0557-0
更新日期:2010-06-01 00:00:00
abstract::It has recently been proposed that a three-gene model (SCMGENE) that measures ESR1, ERBB2, and AURKA identifies the major breast cancer intrinsic subtypes and provides robust discrimination for clinical use in a manner very similar to a 50-gene subtype predictor (PAM50). However, the clinical relevance of both predict...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-012-2143-0
更新日期:2012-08-01 00:00:00
abstract:PURPOSE:Nearly half of the 3.5 million female breast cancer survivors in the US are aged 65 years or older at diagnosis, yet little is known about associations of obesity and physical activity with breast cancer-specific mortality (BCSM) among older survivors. METHODS:Between 1992 and 2013, 5254 women in the Cancer Pr...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-017-4470-7
更新日期:2018-01-01 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