Abstract:
:Transforming growth factor-beta (TGFB) is a potent inhibitor of normal epithelial cell proliferation, and may be one of the regulatory factors that are perturbed during tumor development. While many tumor cell lines no longer respond to the inhibitory effects of TGFB due to a reduction or absence of the type II receptor (TGFBR2), the role of TGFBR2 in tumors from patients with breast cancer is less clear. The objective of this study was to screen human breast tumors to determine if there was a TGFBR2 mutation and/or altered expression of TGFBR2 protein. Using 10 unique primers, SSCP-PCR was used to detect heterozygosity in the complete coding sequence from 72 tumors and normal DNA from 20 individuals. One region of the promoter was also examined. Expression of TGFBR2 in the same breast tumors was examined by immunohistochemistry. Sequence variations were identified among normal and tumor tissue samples by SSCP-PCR within coding regions of exon 4 (1/72 samples) and within non-coding regions of intron 2 (1/72), intron 3 (72/72), and intron 6 (1/72). A new polymorphism was identified in intron 3. Observed allele frequencies were consistent with Hardy-Weinberg equilibrium in both the tumors and normal DNA. TGFBR2 was expressed in the epithelium and stroma of tumor tissue. The percentage of cells expressing TGFBR2 in stroma was higher in patients that had a positive lymph node status and/or negative estrogen and progesterone receptor expression. There was no relationship between TGFBR2 expression in the epithelium and these variables.
journal_name
Breast Cancer Res Treatjournal_title
Breast cancer research and treatmentauthors
Barlow J,Yandell D,Weaver D,Casey T,Plaut Kdoi
10.1023/a:1023918026437subject
Has Abstractpub_date
2003-05-01 00:00:00pages
149-59issue
2eissn
0167-6806issn
1573-7217journal_volume
79pub_type
杂志文章abstract::Tamoxifen has been used for the treatment of breast cancer since the 1970s, but is considered a carcinogen because it has been linked to liver cancer in rats and an increased risk of endometrial cancer in patients. In rats, DNA adducts appear to be responsible for carcinogenesis, but their contribution to carcinogenes...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1023/a:1006311214152
更新日期:2000-03-01 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::To determine whether recent genome-wide association studies that reported 45 susceptibility loci in European women are also risk factors for breast cancer in Chinese women. We selected and genotyped 40 single nucleotide polymorphisms (SNPs) using the Sequenom iPlex platform in a female Chinese cohort of 2,901 breast c...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-014-3041-4
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-011-1785-7
更新日期:2012-06-01 00:00:00
abstract:OBJECTIVE:Previous studies suggest that the majority of breast cancer in Africans are hormone receptor negative and thus differ from breast cancer in other populations. We decided to evaluate the hormone receptor status of patients seen in our practice to see if they indeed differ from that of other populations. METHO...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-007-9694-5
更新日期:2008-07-01 00:00:00
abstract::The clinicopathologic, mammographic, and sonographic findings in patients with pure ductal carcinoma in situ (DCIS) were assessed by estrogen receptor (ER) expression. After institutional review board approval, patients with pure DCIS evaluated from January 1996 to July 2009 with known ER status and available imaging ...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-013-2598-7
更新日期:2013-06-01 00:00:00
abstract:OBJECTIVE:This study examined the influence of knowledge of clinical information on the accuracy of mammography in women referred for investigation of breast symptoms. METHODS:Subjects were sampled from all women consecutively attending a symptomatic breast clinic and aged 25-55 years. This included all 240 women show...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1023/B:BREA.0000025416.66632.84
更新日期:2004-06-01 00:00:00
abstract::We have previously shown that the anti-proliferative effect of retinoic acid in human breast cancer cell line MCF-7 is dependent on HES-1 expression. Here we show that retinoic acid induces HES-1 expression via upregulation of transcription factor SOX9. By expressing a dominant negative form of SOX9, disrupting endoge...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-009-0381-6
更新日期:2010-04-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-017-4291-8
更新日期:2017-08-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-007-9746-x
更新日期:2008-08-01 00:00:00
abstract:BACKGROUND:The aim was to prove the low identification rate of sentinel lymph node biopsy (SNB) and to determine the feasibility of replacing axillary lymph node dissection (AND) in axillary lymph node positive patients after chemotherapy. METHODS:From October 2001 to July 2005, 875 consecutive patients with primary o...
journal_title:Breast cancer research and treatment
pub_type: 临床试验,杂志文章
doi:10.1007/s10549-006-9330-9
更新日期:2007-05-01 00:00:00
abstract::Epidemiological studies have evaluated the association between catechol-O-methyltransferase (COMT) Val108/158Met polymorphism and breast cancer risk. However, the results remain conflicting rather than conclusive. In order to derive a more precise estimation of the relationship, we performed this meta-analysis. System...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,meta分析
doi:10.1007/s10549-009-0650-4
更新日期:2010-06-01 00:00:00
abstract:BACKGROUND:Three tools are currently available to predict the risk of contralateral breast cancer (CBC). We aimed to compare the performance of the Manchester formula, CBCrisk, and PredictCBC in patients with invasive breast cancer (BC). METHODS:We analyzed data of 132,756 patients (4682 CBC) from 20 international stu...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-020-05611-8
更新日期:2020-06-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章,评审
doi:10.1007/s10549-018-4970-0
更新日期:2019-01-01 00:00:00
abstract::Docetaxel-containing chemotherapy improves disease-free survival (DFS) and overall survival in patients with early stage breast cancer. Bevacizumab improves response rate and DFS in metastatic breast cancer. However, adding antivascular endothelial growth factor therapy to anthracycline-containing chemotherapy may inc...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章,多中心研究,随机对照试验
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更新日期:2013-12-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF01980941
更新日期:1991-10-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-012-2377-x
更新日期:2013-01-01 00:00:00
abstract::M1775R and A1789T are two missense variants located within the BRCT domains of BRCA1 gene. The M1775R is a known deleterious variant, while the A1789T is an unclassified variant that has been analyzed and classified as probably deleterious for the first time by our group. In a previous study, we described the expressi...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-013-2705-9
更新日期:2013-10-01 00:00:00
abstract::The sentinel lymph node (SLN) is the only focus of axillary metastasis in a significant proportion of patients. In this single institutional study, clinicopathologic characteristics were investigated to determine the factors predicting the status of a SLN biopsy and the metastatic involvement of non-SLNs. Data were re...
journal_title:Breast cancer research and treatment
pub_type: 临床试验,杂志文章
doi:10.1007/s10549-005-9007-9
更新日期:2006-01-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-014-3104-6
更新日期:2014-09-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-019-05376-9
更新日期:2019-11-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-014-2921-y
更新日期:2014-05-01 00:00:00
abstract::The relation between estrogen receptors (ER) in breast cancer and risk factors was studied in 456 Japanese patients. ER was shown to be positive in 55.3% (252/456) of patients. There was no difference in ER positivity between pre- and postmenopausal patients. In premenopausal patients, only the age at menarche and obe...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF01806986
更新日期:1984-01-01 00:00:00
abstract:PURPOSE:To investigate the effect of understanding their own disease by patients with metastatic breast cancer on their survival potential after being informed by their physician. PATIENTS AND METHODS:Two hundred and fourteen women with metastatic breast cancer who participated in a multi-institutional, randomized pha...
journal_title:Breast cancer research and treatment
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1023/a:1006483214678
更新日期:2000-05-01 00:00:00
abstract::miRNAs regulate the expression of genes in both normal physiology and disease. While miRNAs have been demonstrated to play a pivotal role in aspects of cancer biology, these reports have generally focused on the regulation of single genes. Such single-gene approaches have significant limitations, relying on miRNA expr...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-014-3004-9
更新日期:2014-07-01 00:00:00
abstract::The aim of this study is to identify and validate copy number aberrations in early-stage primary breast tumors associated with bone or non-bone metastasis. Whole-genome molecular inversion probe arrays were used to evaluate copy number imbalances (CNIs) in breast tumors from 960 early-stage patients with information a...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-013-2796-3
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:In 2003, for the first time, US breast cancer incidence rates have fallen. Experts argue whether this is due to the reduced uptake of screening mammography or to lower use of Hormone Replacement Therapy (HRT). This study aims to disentangle the respective impact of screening and HRT on age-incidence rates an...
journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/s10549-007-9554-3
更新日期:2008-02-01 00:00:00
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journal_title:Breast cancer research and treatment
pub_type: 杂志文章
doi:10.1007/BF01807590
更新日期:1983-01-01 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::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