Abstract:
:The effect of estradiol (E2) on the [3H]-acetylation of nuclear histones was studied in the MCF-7 human mammary cancer cell line in culture. Cells (approximately 10(8) were incubated with 8 x 10(-6) M [3H]-acetate in the absence (control) or in the presence of estradiol (10(-5)-10(-8) M). After 20 min incubation, the nuclear histones were extracted and separated by electrophoresis, and each histone band was measured and calculated in DPM/mg protein. It was observed that only the H2 + H3 and H4 histones were associated with the [3H]-acetate. Estradiol (10(-6)-10(-8) M) provoked a significant inhibition in the incorporation of the acetate. The negative effect, in percentage of the non-treated cell value, was as follows: in E2 (10(-6) M): -25 +/- 10 (SE) for H2 + H3 and -26 +/- 5 for H4; in E2 (10(-7) M): -35 +/- 9 and -39 +/- 10; and in E2 (10(-8) M): -56 +/- 22 and -30 +/- 13 respectively. It is concluded that estradiol has a negative effect in the acetylation of H2, H3 and H4 histones of this mammary cancer cell; no acetylation or effect is observed in H1 histones. The relationship of this finding to the biological responses of the hormone is to be explored.
journal_name
Breast Cancer Res Treatjournal_title
Breast cancer research and treatmentauthors
Pasqualini JR,Mercat P,Giambiagi Ndoi
10.1007/BF01805980subject
Has Abstractpub_date
1989-10-01 00:00:00pages
101-5issue
1eissn
0167-6806issn
1573-7217journal_volume
14pub_type
杂志文章abstract:PURPOSE:The utilization of staging preoperative breast MRI in biopsy-proven cancer patients varies based on institution and individual clinicians. It is unclear whether primary breast cancer subtype influences a clinician's decision to obtain a preoperative breast MRI based on likelihood of multicentric or contralatera...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-017-4426-y
更新日期:2017-11-01 00:00:00
abstract::One in six primary human breast cancers has DNA amplification centered on the cyclin D1 gene (CCND1) on chromosome 11q13. This genetic abnormality is preferentially associated with estrogen-receptor positive tumors and may define a sub-class of patients with an adverse prognosis. Although CCND1 has the credentials of ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,评审
doi:10.1007/BF00682720
更新日期:1995-01-01 00:00:00
abstract:PURPOSE:To explore the ability of intraoperative specimen radiography (SR) to correctly identify positive margins in patients receiving breast conserving surgery (BCS). To assess whether the reoperation rate can be reduced by using this method. METHODS:This retrospective study included 470 consecutive cases receiving ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,多中心研究
doi:10.1007/s10549-019-05476-6
更新日期:2020-01-01 00:00:00
abstract::Immunotoxins are a relatively new class of cytotoxic agents consisting of a catalytic toxin linked to an appropriate targeting ligand. The ligand directs the toxin to the surface of a tumor cell, whereupon the toxin enters the cell and catalytically inactivates the ribosome, thus disrupting protein synthesis and effec...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,评审
doi:10.1007/BF00666210
更新日期:1994-01-01 00:00:00
abstract::The c.156_157insAlu BRCA2 mutation has so far only been reported in hereditary breast/ovarian cancer (HBOC) families of Portuguese origin. Since this mutation is not detectable using the commonly used screening methodologies and must be specifically sought, we screened for this rearrangement in a total of 5,443 suspec...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-010-1036-3
更新日期:2011-06-01 00:00:00
abstract::Mammographic density is a strong risk factor for breast cancer. While alcohol intake has been associated with increased breast cancer risk, the association between alcohol consumption and mammographic density is not clear. We assessed the association between alcohol consumption and mammographic density among women who...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-011-1812-8
更新日期:2012-02-01 00:00:00
abstract::The majority of breast cancer deaths are because of ineffective treatment of metastatic disease. We previously identified a subpopulation of cells in human breast cancer cell lines that demonstrate high activity of aldehyde dehydrogenase (ALDH) and high expression of CD44. These ALDH(hi)CD44(+) cells displayed enhance...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-011-1692-y
更新日期:2012-05-01 00:00:00
abstract::Estrogenic steroids, such as estradiol, are known to play a crucial role in the development and growth of hormone-dependent breast cancer. Steroid sulfatase (STS) inhibitors that can prevent the biosynthesis of these steroids via the sulfatase pathway offer therapeutic potential. We show here the in vivo profile, incl...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-007-9769-3
更新日期:2008-09-01 00:00:00
abstract::A human estrogen receptor (ER) cDNA probe was used to examine genomic DNA extracted from 59 primary invasive breast cancers. The tumors were also studied histopathologically, and their ER status was assessed by hormone-binding assay and immunohistochemical analysis. Southern blots of genomic DNA samples digested with ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF01805976
更新日期:1989-10-01 00:00:00
abstract:BACKGROUND:Due to the high rate of febrile neutropenia (FN) with docetaxel-cyclophosphamide (DC) chemotherapy, primary FN prophylaxis is recommended. However, the optimal choice of prophylaxis [i.e., granulocyte-colony stimulating factors (G-CSF) or antibiotics] is unknown. A systematic review was performed to address ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,评审
doi:10.1007/s10549-016-4028-0
更新日期:2017-01-01 00:00:00
abstract:PURPOSE:Androgen receptor (AR) and AR signaling pathways are thought to play a role in breast cancer (BC) and are potentially related to treatment responses and outcomes. Ankyrin 3 (ANK3) is associated with AR stability in cancer cells. In the present study, we investigated the clinicopathological utility of ANK3 expre...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-019-05216-w
更新日期:2019-07-01 00:00:00
abstract::A review of the literature finds that women diagnosed with breast cancer, who were on an aspirin regimen, experienced a decreased risk of distant metastases and death. Several recent studies have reported an improvement in overall survival in colorectal cancer patients who harbored mutations in the oncogene PIK3CA and...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-016-3729-8
更新日期:2016-02-01 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::To evaluate differences in use of sentinel lymph node biopsy (SLNB) by age and race in Medicare recipients with early-stage breast cancer, we examined Surveillance, Epidemiology and End Results-Medicare linked data for women undergoing breast conserving surgery for stage I or II breast cancer, including axillary stagi...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-011-1398-1
更新日期:2011-08-01 00:00:00
abstract:PURPOSE:Fulvestrant is a selective estrogen receptor downregulator (SERD) that is approved for first- or second-line use as a single agent or in combination with cyclin dependent kinase or phosphatidylinositol 3-kinase inhibitors for the treatment of metastatic breast cancer. Fulvestrant exhibits exceptionally effectiv...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-019-05454-y
更新日期:2020-01-01 00:00:00
abstract:PURPOSE:PARP4 has been proposed as a candidate breast cancer susceptibility gene. However, its function and involvement in breast carcinogenesis is unclear. We sought to determine the variant frequency of PARP4 in BRCA-negative women referred for genetic testing from Singapore and to perform functional analyses of PARP...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-019-05286-w
更新日期:2019-08-01 00:00:00
abstract::Mammographic density is strongly associated with breast cancer risk. Inflammation is involved in breast carcinogenesis, perhaps through effects on mammographic density. We evaluated associations between inflammatory markers interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), and C-reactive protein (CRP) and mammogr...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-010-1249-5
更新日期:2011-06-01 00:00:00
abstract::It is common belief among physicians the idea that breast cancer was not diagnosed centuries ago. Nevertheless, there are reports suggesting that old masters and even common people knew this dramatic disease. In the 16th and 17th centuries, famous artists painted things exactly as they saw them. This allows the detect...
journal_title:Breast cancer research and treatment
pub_type: 历史文章,杂志文章
doi:10.1007/s10549-007-9753-y
更新日期:2008-09-01 00:00:00
abstract:BACKGROUND:There has been growing interest in providing clinical trial participants with study results yet only limited information exists regarding the process and impact of sharing results. We sought to evaluate patient perceptions of how results had been shared from a large randomized cooperative group trial, and th...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,随机对照试验
doi:10.1007/s10549-008-0057-7
更新日期:2009-05-01 00:00:00
abstract:PURPOSE:Triple-negative breast cancer (TNBC) patients with residual disease following neoadjuvant chemotherapy (NAC) harbor higher risk of relapse, and eventual demise compared to those who achieve pathologic complete response. Therefore, in this study, we assessed a panel of molecules involved in key pathways of drug ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-018-4985-6
更新日期:2019-01-01 00:00:00
abstract::Macroautophagy (autophagy), a process for lysosomal degradation of organelles and long-lived proteins, has been linked to various pathologies including cancer and to the cellular response to anticancer therapies. In the human estrogen receptor positive MCF7 breast adenocarcinoma cell line, treatment with the endocrine...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-007-9873-4
更新日期:2008-12-01 00:00:00
abstract::From January 1992 to July 1993, 28 patients with metastatic breast cancer were entered in a phase II trial to assess the activity and toxicity of the combination of mitoxantrone, 5-fluoruracil, and leucovorin. Patients were eligible if they had progressive disease after either adjuvant (2 patients) or previous chemoth...
journal_title:Breast cancer research and treatment
pub_type: 临床试验,杂志文章
doi:10.1007/BF01806146
更新日期:1996-01-01 00:00:00
abstract::A minority of early invasive breast cancers show a pattern of central necrosis and fibrosis (CNF). Previous studies have documented an adverse prognostic impact and association with other adverse pathological features, but its predictive importance for therapy selection is unknown. We examined the prognostic and predi...
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/s10549-009-0360-y
更新日期:2010-05-01 00:00:00
abstract:PURPOSE:The ER-/PR-/HER2- or triple-negative (TNBC) subtype is more prevalent among women who are young, black, Hispanic, and of lower SES. The purpose of this study is to determine if young age and low SES are associated with TNBC within four mutually exclusive race/ethnicities. METHODS:The study identified 19,283 ca...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-017-4159-y
更新日期:2017-05-01 00:00:00
abstract:PURPOSE:TP53 mutation is the most common mutation in breast cancer, and it is considered a target marker of triple-negative breast cancer (TNBC). We investigated whether expression of p53 detected by immunochemical staining predicts the chemotherapy response of TNBC. METHODS:A total of 11,393 TNBC patients who had bet...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-018-4928-2
更新日期:2018-11-01 00:00:00
abstract::Transforming growth factor-β1 (TGF-β1) is negative regulator of cell proliferation and the cell cycle, and plasma levels of TGF-β1 are twice as high in TGF-β1 -509 T homozygotes as in -509 C homozygotes. Published studies on the association between the TGF-β1 gene -509 C/T polymorphism and breast cancer risk are incon...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,meta分析
doi:10.1007/s10549-010-0871-6
更新日期:2010-11-01 00:00:00
abstract::Tumor necrosis factor-α (TNF-α) is an important pro-inflammatory cytokine in the development and progress in human cancer. TNF-α polymorphisms have been confirmed to influence the risk for several types of cancer, however, the associations between TNF-α polymorphisms and breast cancer (BC) remain controversial and amb...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,meta分析,评审
doi:10.1007/s10549-011-1494-2
更新日期:2011-09-01 00:00:00
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
pub_type: 杂志文章
doi:10.1007/s10549-010-0809-z
更新日期:2010-11-01 00:00:00
abstract:PURPOSE:Chemotherapy-induced peripheral neuropathy (CIPN) is a common, debilitating side effect in cancer survivors. This study aimed to assess the characteristics of quantitative sensory testing (QST) and its correlation with patient-reported outcomes (PROs) in cancer patients with and without CIPN. METHODS:We conduc...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-020-06079-2
更新日期:2021-01-28 00:00:00
abstract::Spindle cell lesions of the breast represent an interesting diagnostic problem, as the differential diagnoses are wide. Diagnosing this is particularly problematic but important when encountered in a needle core biopsy, as treatments of different entities are different. In the histologic assessment of spindle cell les...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,评审
doi:10.1007/s10549-007-9652-2
更新日期:2008-05-01 00:00:00