Abstract:
INTRODUCTION:Involution of the mammary gland is a complex process of controlled apoptosis and tissue remodelling. The aim of the project was to identify genes that are specifically involved in this process. METHODS:We used Affymetrix oligonucleotide microarrays to perform a detailed transcript analysis on the mechanism of controlled involution after withdrawal of the pups at day seven of lactation. Some of the results were confirmed by semi-quantitative reverse transcriptase polymerase chain reaction, Western blotting or immunohistochemistry. RESULTS:We identified 145 genes that were specifically upregulated during the first 4 days of involution; of these, 49 encoded immunoglobulin genes. A further 12 genes, including those encoding the signal transducer and activator of transcription 3 (STAT3), the lipopolysaccharide receptor (CD14) and lipopolysaccharide-binding protein (LBP), were involved in the acute-phase response, demonstrating that the expression of acute-phase response genes can occur in the mammary gland itself and not only in the liver. Expression of LBP and CD14 was upregulated, at both the RNA and protein level, immediately after pup withdrawal; CD14 was strongly expressed in the luminal epithelial cells. Other genes identified suggested neutrophil activation early in involution, followed by macrophage activation late in the process. Immunohistochemistry and histological staining confirmed the infiltration of the involuting mammary tissue with neutrophils, plasma cells, macrophages and eosinophils. CONCLUSION:Oligonucleotide microarrays are a useful tool for identifying genes that are involved in the complex developmental process of mammary gland involution. The genes identified are consistent with an immune cascade, with an early acute-phase response that occurs in the mammary gland itself and resembles a wound healing process.
journal_name
Breast Cancer Resjournal_title
Breast cancer research : BCRauthors
Stein T,Morris JS,Davies CR,Weber-Hall SJ,Duffy MA,Heath VJ,Bell AK,Ferrier RK,Sandilands GP,Gusterson BAdoi
10.1186/bcr753keywords:
subject
Has Abstractpub_date
2004-01-01 00:00:00pages
R75-91issue
2eissn
1465-5411issn
1465-542Xpii
bcr753journal_volume
6pub_type
杂志文章abstract::Aromatase inhibitors are currently included in the 'optimal' management of early-stage breast cancer. Uncertainty remains, however, as to the most appropriate treatment strategy, particularly for newly diagnosed women as they seek to trade off the cost, toxicities and efficacy of the treatment options. Recent publicat...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章,评审
doi:10.1186/bcr2410
更新日期:2009-01-01 00:00:00
abstract:INTRODUCTION:Menopausal hormone therapy has been reported to increase the risk of certain subtypes of breast cancer and to be associated with a favorable survival. These associations could either be due to an increased mammographic surveillance or to a biological effect. We assessed these associations in a Swedish coho...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章,多中心研究
doi:10.1186/bcr2145
更新日期:2008-01-01 00:00:00
abstract:INTRODUCTION:During selective segregation of DNA, a cell asymmetrically divides and retains its template DNA. Asymmetric division yields daughter cells whose genome reflects that of the parents', simultaneously protecting the parental cell from genetic errors that may occur during DNA replication. We hypothesized that ...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章
doi:10.1186/bcr2754
更新日期:2010-01-01 00:00:00
abstract:INTRODUCTION:Mutations in BRCA1 and BRCA2 confer a high risk of breast cancer (BC), but the magnitude of this risk seems to vary according to the study and various factors. Although controversial, there are data to support the hypothesis of allelic risk heterogeneity. METHODS:We assessed variation in BC risk according...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章
doi:10.1186/bcr3218
更新日期:2012-07-03 00:00:00
abstract::Advances in genotyping technology have provided us with a large number of genetic loci associated with cancer susceptibility; however, our ability to understand the functional effects of the genetic variants of these loci remains limited. In the previous issue, Smits and colleagues demonstrate the use of congenic rat ...
journal_title:Breast cancer research : BCR
pub_type: 评论,社论
doi:10.1186/bcr2939
更新日期:2011-10-12 00:00:00
abstract::The protective effect of an early full-term pregnancy is a well established phenomenon; in contrast, the molecular and cell-specific mechanisms that govern parity-specific changes in the mammary gland have not been well described. Recent studies signify a dramatic advance in our understanding of this phenomenon, and i...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章
doi:10.1186/bcr603
更新日期:2003-01-01 00:00:00
abstract::Anti-angiogenic therapies have demonstrated their value in the setting of advanced cancer, and are being explored for use in micrometastatic disease. Recent preclinical studies suggest that adjuvant anti-vascular endothelial growth factor (VEGF) therapies may increase the risk of metastasis. How concerning are these p...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章
doi:10.1186/bcr2250
更新日期:2009-01-01 00:00:00
abstract:INTRODUCTION:Tamoxifen, a selective estrogen receptor (ER) modulator, may affect cancer cell survival through mechanisms other than ER antagonism. In the present study, we tested the efficacy of tamoxifen in a panel of ER-negative breast cancer cell lines and examined the drug mechanism. METHODS:In total, five ER-nega...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章
doi:10.1186/s13058-014-0431-9
更新日期:2014-09-17 00:00:00
abstract:INTRODUCTION:A family history of later-onset breast cancer (FHLBC) may suggest multi-factorial inheritance of breast cancer risk, including unhealthy lifestyle behaviors that may be shared within families. We assessed whether adherence to lifestyle behaviors recommended for breast cancer prevention--including maintaini...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章
doi:10.1186/bcr2727
更新日期:2010-01-01 00:00:00
abstract:BACKGROUND:A novel line of research suggests that eating at nighttime may have several metabolic consequences that are highly relevant to breast cancer. We investigated the association between nighttime eating habits after 10 p.m. and breast cancer in Hong Kong women. METHODS:A hospital-based case-control study was co...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章
doi:10.1186/s13058-017-0821-x
更新日期:2017-03-17 00:00:00
abstract:INTRODUCTION:Recent studies have demonstrated that members of the GATA-binding protein (GATA) family (GATA4 and GATA5) might have pivotal roles in the transcriptional upregulation of mucin genes (MUC2, MUC3 and MUC4) in gastrointestinal epithelium. The zinc-finger GATA3 transcription factor has been reported to be invo...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章
doi:10.1186/bcr1617
更新日期:2006-01-01 00:00:00
abstract:INTRODUCTION:Estrogen receptor-alpha (ER-alpha) and progesterone receptor (PgR) are consolidated predictors of response to hormonal therapy (HT). In contrast, little information regarding the role of estrogen receptor-beta (ER-beta) in various breast cancer risk groups treated with different therapeutic regimens is ava...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章
doi:10.1186/bcr2139
更新日期:2008-01-01 00:00:00
abstract:BACKGROUND:Several anthropometric measures have been found to be associated with the risk of breast cancer. Current weight, body mass index, and adult weight gain appear to be predictors of postmenopausal breast cancer. These factors have been associated with a reduced risk of premenopausal breast cancer. We asked whet...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章
doi:10.1186/bcr1293
更新日期:2005-01-01 00:00:00
abstract:BACKGROUND:Women with breast cancer who have multiple affected relatives are more likely to have inherited genetic risk factors for the disease. All the currently known genetic risk factors for breast cancer account for less than half of the average familial risk. Furthermore, the genetic factor(s) underlying an increa...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章
doi:10.1186/s13058-017-0825-6
更新日期:2017-03-16 00:00:00
abstract:BACKGROUND:Breast cancer subtype can be classified using standard clinical markers (estrogen receptor (ER), progesterone receptor (PR) and human epidermal growth factor receptor 2 (HER2)), supplemented with additional markers. However, automated biomarker scoring and classification schemes have not been standardized. T...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章
doi:10.1186/s13058-018-0939-5
更新日期:2018-02-06 00:00:00
abstract:BACKGROUND:Black-white disparities in breast cancer incidence rates and birth outcomes raise concerns about potential disparities in the reproductive health of premenopausal breast cancer survivors. We examined the prevalence of preterm birth (PTB), low birthweight (LBW), and small for gestational age (SGA) by breast c...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章
doi:10.1186/s13058-017-0803-z
更新日期:2017-01-31 00:00:00
abstract:INTRODUCTION:The main prognostic variables in early breast cancer are tumor size, histological grade, estrogen receptor/progesterone receptor (ER/PgR) status, number of positive nodes and human epidermal growth factor receptor 2 (HER2) status. The present study evaluated the prognostic and/or predictive value of vascul...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章,随机对照试验
doi:10.1186/bcr3354
更新日期:2012-11-12 00:00:00
abstract:BACKGROUND:The isocitrate dehydrogenase (IDH) gene family expresses key functional metabolic enzymes in the Krebs cycle and mediates the epigenetic reprogramming, which serves as an important biomarker of breast cancer. However, the expression levels of the IDH protein and their biological function in human breast canc...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章
doi:10.1186/s13058-018-0953-7
更新日期:2018-04-16 00:00:00
abstract:INTRODUCTION:Human breast tumors are heterogeneous and consist of phenotypically diverse cells. Breast cancer cells with a CD44+/CD24- phenotype have been suggested to have tumor-initiating properties with stem cell-like and invasive features, although it is unclear whether their presence within a tumor has clinical im...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章
doi:10.1186/bcr2108
更新日期:2008-01-01 00:00:00
abstract:INTRODUCTION:Compromised patterns of gene expression result in genomic instability, altered patterns of gene expression and tumour formation. Specifically, aberrant DNA hypermethylation in gene promoter regions leads to gene silencing, whereas global hypomethylation events can result in chromosomal instability and onco...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章
doi:10.1186/bcr799
更新日期:2004-01-01 00:00:00
abstract::The key to optimising our approach in early breast cancer is to individualise care. Each patient has a tumour with innate features that dictate their chance of relapse and their responsiveness to treatment. Often patients with similar clinical and pathological tumours will have markedly different outcomes and response...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章,评审
doi:10.1186/bcr2238
更新日期:2009-01-01 00:00:00
abstract::Testosterone binds to the androgen receptor in target tissue to mediate its effects. Variations in testosterone levels and androgen receptor activity may play a role in the etiology of breast cancer. Here, we review the epidemiologic evidence linking endogenous testosterone to breast cancer risk. Paradoxically, result...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章,评审
doi:10.1186/bcr593
更新日期:2003-01-01 00:00:00
abstract:INTRODUCTION:Increased mammographic breast density is one of the strongest risk factors for breast cancer. While two-thirds of the variation in mammographic density appears to be genetically influenced, few variants have been identified. We examined the association of inherited variation in genes from pathways that med...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章
doi:10.1186/bcr3088
更新日期:2012-01-07 00:00:00
abstract::Targeting the function of epidermal growth factor receptor (EGFR) has failed as an effective clinical option for breast cancer. Understanding the drivers of inherent resistance has been a challenge. One possible mechanism is the acquisition of stem-like properties through the process of epithelial-mesenchymal transiti...
journal_title:Breast cancer research : BCR
pub_type: 评论,杂志文章
doi:10.1186/s13058-014-0448-0
更新日期:2014-09-23 00:00:00
abstract::Adjuvant hormonal therapy for postmenopausal women with early stage breast cancer has become far more complex over the past several years. This commentary reviews the current status of the five major trials evaluating the use of the aromatase inhibitors in the adjuvant setting. The data currently available suggest tha...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章,评审
doi:10.1186/bcr1347
更新日期:2005-01-01 00:00:00
abstract:INTRODUCTION:MBD2, the gene encoding methyl-CpG-binding domain (MBD)2, is a major methylation related gene and functions as a transcriptional repressor that can specifically bind to the methylated regions of other genes. MBD2 may also mediate gene activation because of its potential DNA demethylase activity. The presen...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章
doi:10.1186/bcr1283
更新日期:2005-01-01 00:00:00
abstract::The mammary gland develops as an appendage of the ectoderm. The prenatal stage of mammary development is hormone independent and is regulated by sequential and reciprocal signaling between the epithelium and the mesenchyme. A number of recent studies using human and mouse genetics, in particular targeted gene deletion...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章,评审
doi:10.1186/bcr776
更新日期:2004-01-01 00:00:00
abstract:BACKGROUND:The underlying biological mechanisms through which epidemiologically defined breast cancer risk factors contribute to disease risk remain poorly understood. Identification of the molecular changes associated with cancer risk factors in normal tissues may aid in determining the earliest events of carcinogenes...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章
doi:10.1186/s13058-017-0873-y
更新日期:2017-07-10 00:00:00
abstract:INTRODUCTION:The chromodomain helicase DNA binding protein 5 (CHD5) has recently been identified as a tumor suppressor in a mouse model. The CHD5 locus at 1p36 is deleted, and its mutation has been detected in breast cancer. We, therefore, evaluated whether CHD5 plays a role in human breast cancer. METHODS:We screened...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章
doi:10.1186/bcr3182
更新日期:2012-05-08 00:00:00
abstract::The ductal approach to breast cancer, encompassing nipple aspiration, ductal lavage and duct endoscopy, allows assessment of breast ductal epithelial cells and their local microenvironment in a graded process of increasing invasiveness. Samples of ductal epithelial cells sufficient for cytological diagnosis may be saf...
journal_title:Breast cancer research : BCR
pub_type: 杂志文章,评审
doi:10.1186/bcr759
更新日期:2004-01-01 00:00:00