Abstract:
:Caveolin-1 and -2 (CAV1, CAV2) are closely linked genes localised to the fragile region of 7q31 (FRA7G), and loss of heterozygosity involving this region has been reported in breast cancer. Several studies have suggested that CAV1 is a negative regulator of HER2/neu signal transduction in vitro. However, the clinical significance of CAV1 in breast cancer has not yet been clarified. We examined quantitatively the mRNA levels of CAV1, CAV2 and HER2/neu in 162 cases of breast cancer using real-time PCR. Caveolin-1 and -2 protein expression was also examined by Western blotting and immunohistochemistry. We then evaluated for correlations between CAV1, CAV2 and HER2/neu gene expression and clinicopathologic factors in the 162 breast cancer cases. Results showed higher HER2/neu mRMA levels and lower CAV1 and CAV2 mRMA levels in breast cancer tissues than in corresponding normal tissues (P<0.001). Caveolin-1 and -2 protein expression levels were also suppressed in cancer tissues compared to normal tissues by Western blotting. Immunohistochemistry revealed that CAV1 and CAV2 proteins were abundantly expressed in mammary gland myoepithelial cells, but only weakly in ductalepithelial cells. Reduced CAV1 mRNA level was significantly associated with increasing tumour size (P=0.041), and negative oestrogen receptor status (P=0.021). There was also a significant association between low CAV2 mRNA level and negative progesterone receptor status (P=0.013), and between high HER2/neu mRNA level and negative hormonal receptor status (ER, P=0.029, PgR, P=0.019). While there was no relationship between HER2/neu and CAV1 mRNA levels, a significant association between CAV1 and CAV2 mRNA levels was observed (P<0.001). Our results indicated that CAV1 suppression correlated closely with that of CAV2 in breast cancer, that CAV1 level was inversely correlated with tumour size, and that CAV1 and CAV2 levels were correlated with hormonal receptor status. Therefore, CAV1 and CAV2 play an important role in tumour progression in breast cancer patients.
journal_name
Br J Cancerjournal_title
British journal of cancerauthors
Sagara Y,Mimori K,Yoshinaga K,Tanaka F,Nishida K,Ohno S,Inoue H,Mori Mdoi
10.1038/sj.bjc.6602029subject
Has Abstractpub_date
2004-08-31 00:00:00pages
959-65issue
5eissn
0007-0920issn
1532-1827pii
6602029journal_volume
91pub_type
杂志文章abstract::5-fluorouracil (5FU) is activated intracellularly to cytotoxic 5-fluoronucleotides (FNuct). These were detected non-invasively in rats bearing the Walker carcinosarcoma by 19F-magnetic resonance spectroscopy (MRS) following an i.v. bolus dose of 5FU (50 mg kg-1). Pre-treatment of the rats (3 to 24 h earlier) by methot...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1992.75
更新日期:1992-03-01 00:00:00
abstract::We carried out a comparison of three commonly used mucin markers, CA549, CA15.3 and MCA. Serum samples from 184 healthy women and 237 patients with primary breast cancer were evaluated. The markers were measured using commercially available immunometric assays. Like CA15.3 and MCA, CA549 was significantly associated w...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1994.136
更新日期:1994-04-01 00:00:00
abstract::Male and female Swiss strain mice were put on a 0.03% thioacetamide diet at the age of 2 months. Control mice were kept on a stock diet. Control and treated mice were killed at the ages of 6, 9, 13 and 17 months. Progressive morphological, histological and biochemical alterations in the liver and tumour tissue of the ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1970.60
更新日期:1970-09-01 00:00:00
abstract:BACKGROUND:Overexpression of plasma membrane multi-drug resistance protein 1 (MRP-1) can lead to multidrug resistance. In this study, we describe for the first time the expression of mitochondrial MRP-1 in untreated human normal and cancer cells and tissues. METHODS:MRP-1 expression and subcellular localisation in nor...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2012.40
更新日期:2012-03-13 00:00:00
abstract::During the development of indazolylpyrimidines as novel and potent inhibitors of vascular endothelial growth factor (VEGF) receptor-2 (VEGFR2) tyrosine kinase, we observed that some human tumour xenografts are more sensitive to VEGFR2 kinase inhibitors than others. A better understanding of the basis for this differen...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6602109
更新日期:2004-10-04 00:00:00
abstract:BACKGROUND:Around 60% of women ≥ 80 years old, in the UK do not have surgery for their breast cancer (vs<10% of younger age groups). The extent to which this difference can be accounted for by co-morbidity has not been established. METHODS:A Cancer Registry/Hospital Episode Statistics-linked data set identified women ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2012.192
更新日期:2012-09-25 00:00:00
abstract::We followed 353 women referred with abnormal cervical cytology in a non-intervention cohort study. In 91 pregnant women we compared high-risk human papilloma virus rates in the subsequent trimesters and postpartum in comparison to 262 non-pregnant women. High-risk human papilloma virus clearance was compared with 179 ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6600367
更新日期:2002-07-01 00:00:00
abstract::Both host carbogen (95% oxygen/5% carbon dioxide) breathing and nicotinamide administration enhance tumour radiotherapeutic response and are being re-evaluated in the clinic. Non-invasive magnetic resonance imaging (MRI) and 31P magnetic resonance spectroscopy (MRS) methods have been used to give information on the ef...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1054/bjoc.2000.1144
更新日期:2000-06-01 00:00:00
abstract::L-Glutamine is a requirement for many cells in tissue culture, an intermediate in many metabolic pathways, and an alternative substrate to glucose for energy metabolism. These properties suggest that glutamine concentration might be a determinant of cell viability in tumours, especially in regions that are deficient i...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1986.234
更新日期:1986-11-01 00:00:00
abstract::In this study we investigated the tumorigenicity, growth pattern and spontaneous metastatic ability of a series of nine human colorectal carcinoma cell lines after subcutaneous and intracaecal xenografting in nude mice. CaCo2 cells were found to be poorly tumorigenic to non-tumorigenic in either site; the other cell l...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1995.55
更新日期:1995-02-01 00:00:00
abstract::Proton pump inhibitor (PPI) use leads to hypergastrinaemia, which has been associated with gastrointestinal neoplasia. We evaluated the association between PPI use and risk of gastric cancer using population-based health-care registers in North Jutland, Denmark, during 1990-2003. We compared incidence rates among new ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6605024
更新日期:2009-05-05 00:00:00
abstract::New therapeutic strategies are now being developed against adenocarcinoma associated with erbB-2 amplification, particularly by inhibiting p185erbB-2 expression. Antisense oligodeoxynucleotides seem promising for this purpose as long as they are efficiently protected against degradation and targeted into the cells. We...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1998.238
更新日期:1998-05-01 00:00:00
abstract::Specimens from 45 patients with previously-untreated non-small cell lung cancer (NSCLC) were tested for in vitro chemosensitivity to ten drugs utilising the DiSC assay, which measures cell kill in the total (largely non-dividing) tumour cell population. Thirty-five assays were successful and 25 patients with advanced ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1992.5
更新日期:1992-01-01 00:00:00
abstract:BACKGROUND:Period analysis is increasingly used to compute long-term cancer survival, as it provides better prediction of survival of newly diagnosed patients than traditional cohort analysis. However, the patient population to which period survival estimates best pertain to and which should be described in a study is ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2013.14
更新日期:2013-02-19 00:00:00
abstract::Using bivariate flow cytofluorometry, we have determined the nuclear DNA distribution and the expression of the p21 protein (coded by the Ha-ras oncogene) in the bone marrow (BM) cells of five solid tumour patients having histologically normal BM and in those of 57 patients with plasma cell dyscrasia (28 with monoclon...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1990.379
更新日期:1990-11-01 00:00:00
abstract::In a blind study, 518 serum samples were assayed for serum levels of mammary serum antigen (MSA) by an enzyme immunoassay (EIA) using the 3E1.2 monoclonal antibody. Using 300 IU as the arbitrary cut off to distinguish normal from abnormal individuals, 75% of patients with primary Stage I carcinoma of the breast (n = 1...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1988.66
更新日期:1988-03-01 00:00:00
abstract::Oestrogen receptor protein (ER) was detected in 9 of 11 samples of malignant breast tissue and 8 of 9 samples of normal breast tissue. Levels of cytosolic ER (ERc) in malignant breast were 21-1102 fmol mg-1 soluble protein (Kd 1.8 X 10(-9)-3.1 X 10(-8) mol l-1) and those of nucleosolic ER (ERn), 13-526 fmol mg-1 solub...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1986.196
更新日期:1986-09-01 00:00:00
abstract::In 1977 a number of patients with soft-tissue sarcomas and previous exposure to phenoxyacetic acids were described. Following from these observations a matched case-control study was made. Exposure to chlorophenols was also included in this study. The results showed that exposure to phenoxyacetic acids or chlorophenol...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1979.125
更新日期:1979-06-01 00:00:00
abstract::We retrospectively analysed neuromuscular toxicity associated with paclitaxel 210 mg m(-2) given by 3-h infusion in 247 patients. The severity correlated significantly with total cumulative dose, but could not be predicted by the pretreatment clinical variables or by pharmacokinetic parameters. The toxicity tended to ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1998.278
更新日期:1998-05-01 00:00:00
abstract::Question prompt lists (QPLs) have been shown to be an inexpensive and effective communication tool for patients in oncology consultations. We aimed to develop and pilot a QPL for palliative care (PC) patients. In order to identify suitable questions for inclusion in the QPL, we conducted focus groups and individual in...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6601380
更新日期:2003-12-01 00:00:00
abstract::More women are living with and surviving breast cancer, because of improvements in breast cancer care. Trastuzumab (Herceptin) has significantly improved outcomes for women with HER2-positive tumours. Concerns about the cardiac effects of trastuzumab (which fundamentally differ from the permanent myocyte loss associat...
journal_title:British journal of cancer
pub_type: 杂志文章,实务指引
doi:10.1038/sj.bjc.6604909
更新日期:2009-03-10 00:00:00
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journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1971.58
更新日期:1971-09-01 00:00:00
abstract:BACKGROUND:The arachidonic acid metabolite 12(S)-HETE is suspected to enhance metastatic spread by inducing cancer cell- and lymph endothelial cell (LEC) motility. However, the molecular mechanisms leading to 12(S)-HETE-triggered cell migration are still elusive. METHODS:To delineate the signalling pathways involved i...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2016.201
更新日期:2016-07-26 00:00:00
abstract::HuR, a ubiquitously expressed member of the Hu protein family that binds and stabilizes an AU-rich element (ARE)-containing mRNAs, is known to shuttle between the nucleus and the cytoplasm via several export pathways. When normal cells were treated with heat shock, HuR was exported to the cytoplasm in a chromosome mai...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6605084
更新日期:2009-06-16 00:00:00
abstract::A number of growth factors have been implicated in the control of the proliferation of breast cancer cells and some have been reported to mediate the proliferative effects of oestradiol. MCF-7 cells were treated with growth factors in the presence and absence of oestradiol. Oestradiol increased the response of cells t...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1992.330
更新日期:1992-10-01 00:00:00
abstract::In a case-control study, we investigated 169 women aged 15-49 years with malignant melanoma notified to the Oxford and South Western cancer registries during the years 1971-1976, together with 507 matched controls. Data about medical, reproductive, drug and smoking histories were obtained both by reviewing general pra...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1981.145
更新日期:1981-07-01 00:00:00
abstract::Mice transplanted with NC carcinoma were treated with the thromboxane synthetase inhibitor dazmegrel (UK38485) or with nafazatrom (BAY G 6575), a compound that is reported to increase prostacyclin formation. Some experiments included the cytotoxic drugs methotrexate and melphalan. The tumours were excised under anaest...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1986.171
更新日期:1986-08-01 00:00:00
abstract:BACKGROUND:Risk factors for the development of myelodysplastic syndromes (MDS) include age, exposure to ionising radiation, and cytotoxic drug treatment. Recently, asthma also has been suggested as a risk factor for MDS. METHODS:We undertook this nationwide population-based cohort study on patients with a first-time h...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2016.389
更新日期:2017-01-03 00:00:00
abstract:BACKGROUND:The precise timing of the angiogenic switch and the role of angiogenesis in the development of breast malignancy is currently unknown. METHODS:Therefore, the expression of CD31 (pan endothelial cells (ECs)), endoglin (actively proliferating ECs), hypoxia-inducible factor-1 (HIF-1alpha), vascular endothelial...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6605196
更新日期:2009-08-18 00:00:00
abstract::A multicentre phase 2 trial (single-stage design) was undertaken to test the efficacy and toxicity of carboplatin (AUC 6 according to Calvert) plus paclitaxel (175 mg/m(2)3-h infusion) every 4 weeks in the first line treatment of patients affected by extensive small cell lung cancer. The primary end-point of the trial...
journal_title:British journal of cancer
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1054/bjoc.2000.1541
更新日期:2001-01-05 00:00:00