Abstract:
:In order to examine in detail the sensitivity to chemotherapy of tumour cells at various organ sites and at various stages of metastasis, we have used a series of cell lines, all selected from sister subpopulations derived from a single mouse mammary tumour, which can be distinguished and quantitated from normal cells and from each other through growth in selective medium. For the studies described here, we used two lines, 4T07 and 66FAR, which will form colonies in vitro in medium containing 60 microM 6-thioguanine or 330 microM 2,6-diaminopurine, respectively. Both cell lines have similar sensitivity to the test chemotherapeutic agent, melphalan, in vitro. These two tumour cell lines were treated with melphalan in vivo, when growing either in lungs as experimental metastases at various times after cell injection or as palpable tumours growing subcutaneously. Responses to various doses of melphalan were measured by removing lungs or subcutaneous tumours and performing colony-forming assays in selective medium. The data indicate marked shifts in sensitivity as a function of metastatic stage. Analyses of dose-response curves show that both cell lines were similarly sensitive to melphalan at early times (45 min) after cell injection i.v. but became less sensitive at an intermediate time after injection (3 days). Differences between the two lines became apparent at later times after i.v. injection (by day 8 or 9) and in subcutaneous tumours, where a marked reduction in the shoulder of the dose response curve was seen in line 4T07, resulting in sensitivity equal to or greater than the of early times, whereas the dose response parameters of 66FAR remained at those of the intermediate time point. These results show that, in heterogeneous tumours, individual subpopulations of tumour cells may respond differently to chemotherapeutic agents at various disease stages. In vitro measures of tumour sensitivity do not predict these changes in in vivo sensitivity. Model systems similar to the one described here may yield information which will eventually be useful in maximising the efficacy of clinically relevant adjuvant chemotherapy regimens.
journal_name
Br J Cancerjournal_title
British journal of cancerauthors
Miller BE,Miller FR,Machemer T,Heppner GHdoi
10.1038/bjc.1993.280subject
Has Abstractpub_date
1993-07-01 00:00:00pages
18-25issue
1eissn
0007-0920issn
1532-1827journal_volume
68pub_type
杂志文章abstract::Lipoxygenase metabolites of arachidonic acid can act as growth promoting factors for various cancer cell lines. Here we demonstrate that the 5-lipoxygenase inhibitor nordihydroguaiaretic acid potently inhibits anchorage-independent growth of human pancreatic and cervical cancer cells in soft agar and delays growth of ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6600186
更新日期:2002-04-08 00:00:00
abstract::Phorbol-12-myristate-13-acetate (PMA) induces p21WAF-1 expression in human myeloid leukaemic HL-60 cells. We show that this induction is specifically mediated by protein kinase C (PKC). In addition, the PKC inhibitor Ro 31-8220 with predominant PKC-alpha isoform specificity almost completely inhibited PMA-induced up-r...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1997.595
更新日期:1997-01-01 00:00:00
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 ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6602029
更新日期:2004-08-31 00:00:00
abstract::Epidermal growth factor receptor (EGFR) gene mutations and increased copy numbers are considered as predictors of response to EGFR tyrosine kinase inhibitors (EGFR-TKI) in non-small-cell lung cancer (NSCLC). Lung cancer diagnosis is often based on cytology alone. However, almost all published data on EGFR gene analyse...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6604142
更新日期:2008-01-15 00:00:00
abstract:BACKGROUND:CD26 is a multifunctional membrane-bound glycoprotein that regulates tumour growth in addition to its other activities. Because disease aggressiveness is correlated with CD26 expression in several T-cell malignancies, we decided to investigate the invasiveness of cells expressing different levels of CD26. M...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6605236
更新日期:2009-09-15 00:00:00
abstract::In a meta-analysis of testicular cancer in twins, twins had a 30% increased risk (estimate 1.31, 95% CI 1.1-1.6), providing indirect support for the hypothesis that in utero hormone variations influence risk of testicular cancer. The summary-estimate for dizygotic twins was 1.3 (1.0-1.7) and for monozygotic or same se...
journal_title:British journal of cancer
pub_type: 杂志文章,meta分析
doi:10.1038/sj.bjc.6604136
更新日期:2008-01-15 00:00:00
abstract::Although the presence of axillary node metastases in breast cancer is a key prognostic indicator and may influence treatment decisions, a significant proportion of patients diagnosed as axillary node negative (ANN) using standard histopathological techniques may have occult nodal metastases (OMs). A combination of lim...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1996.16
更新日期:1996-01-01 00:00:00
abstract::The clinical formulation of the anti-tumour agent Taxol involves the use of a mixture of ethanol and Cremophor EL. Gel electrophoresis and density-gradient ultracentrifugation were used to detect effects of Taxol infusions on serum lipoproteins. Use of the Cremophor vehicle results in a decrease in the electrophoretic...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1994.317
更新日期:1994-09-01 00:00:00
abstract::In the UK, 10% of patients diagnosed with rectal cancer have inoperable disease at presentation. This study ascertained whether the resectability rate of inoperable locally advanced rectal cancer was improved by administration of intravenous irinotecan, 5-fluorouracil (5-FU) and pelvic radiotherapy. During phase I of ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6604292
更新日期:2008-04-08 00:00:00
abstract:BACKGROUND:Erythropoietin-stimulating agents (ESAs) effectively decrease the transfusion requirements of patients with chemotherapy-induced anaemia (CIA). Recent studies indicate that ESAs increase mortality and accelerate tumour progression. The studies also identify a 1.6-fold increased risk of venous thromboembolism...
journal_title:British journal of cancer
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1038/bjc.2011.395
更新日期:2011-10-25 00:00:00
abstract::1,25(OH)2D3 promotes differentiation and has an antiproliferative effect in a variety of cell lines derived from the immunohaematopoetic system. alpha-Calcidol which is metabolised to 1,25(OH)2D3 has been shown to produce tumour regression in follicular low grade non-Hodgkin's lymphoma (NHL) and the dose limiting toxi...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1993.406
更新日期:1993-10-01 00:00:00
abstract::Local recurrence of glioblastomas is a major cause of patient mortality after definitive treatment. This review discusses the roles of the chemokine stromal cell-derived factor-1 and its receptor CXC chemokine receptor 4 (CXCR4) in affecting the sensitivity of glioblastomas to irradiation. Blocking these molecules pre...
journal_title:British journal of cancer
pub_type: 杂志文章,评审
doi:10.1038/bjc.2011.169
更新日期:2011-06-07 00:00:00
abstract::RNA tumour virus genes are contained in the chromosomal DNA of most vertebrates, and may be transmitted vertically from parent to progeny along with other cellular genes, as well as horizontally as infectious particles. Activation of these viral genes may be part of the means by which RNA tumour viruses produce cancer...
journal_title:British journal of cancer
pub_type: 杂志文章,评审
doi:10.1038/bjc.1978.23
更新日期:1978-02-01 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::The risk for sinonasal cancer associated with tobacco use was examined in a case-control study in males diagnosed between 1978 and 1981 in the Netherlands. Of the 116 cases of sinonasal cancer and 259 controls identified, interviews were completed for 92 (79%) of the cases and 195 (75%) of the controls. Ever-users of ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1987.303
更新日期:1987-12-01 00:00:00
abstract:BACKGROUND:Non-invasive biomarkers of disease progression in mice with cancer are lacking making it challenging to implement appropriate humane end points. We investigated whether body temperature, food and water consumption could be used to predict tumour burden. METHODS:Thirty-six male, wild-type C57Bl/6 mice were i...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2013.818
更新日期:2014-02-18 00:00:00
abstract::Acute inflammatory reactions were induced in rats by the intravenous injection of cellulose sulphate (CS) or an extract of normal rat lung homogenate (LH), or by intraperitoneal injections of Compound 48/80. These treatments greatly increased survival and clonogenic growth in the lungs of rats of intravenously injecte...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1974.189
更新日期:1974-09-01 00:00:00
abstract::Male inbred Fischer rats were fed phenobarbitone-Na at a level of 500 parts/10(6) in the diet for 1 week, followed by 1000 parts 10(6) for 103 weeks at which time the survivors were killed. Thirty-three treated rats survived to 80 weeks. Before 80 weeks, no animals showed hyperplastic lesions. Of the 33 rats surviving...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1978.62
更新日期:1978-03-01 00:00:00
abstract::The ribosome-inactivating proteins, bryodin, from Bryonia dioica, and momordin, from Momordica charantia, were coupled by a disulphide bond to a monoclonal anti-Thy 1.1 antibody (OX7). Both immunotoxins were specifically cytotoxic to the Thy 1.1-expressing mouse lymphoma cell line AKR-A in vitro. The OX7-bryodin immun...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1988.258
更新日期:1988-11-01 00:00:00
abstract::Exposure to the fibrous mineral erionite is known to induce mesothelioma in man and laboratory animals. Previous studies demonstrated the presence of a trypsin-like protease associated with tumour cells. This protease could be demonstrated by the use of fluorescent probes which located cells possessing this enzyme. We...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1988.269
更新日期:1988-11-01 00:00:00
abstract::To evaluate current guidelines criteria for inclusion of women in special 'breast cancer family history' surveillance programmes, records were reviewed of women referred to Scottish breast cancer family clinics between January 1994 and December 2003 but discharged as at 'less than 'moderate' familial risk'. The Scotti...
journal_title:British journal of cancer
pub_type: 杂志文章,多中心研究
doi:10.1038/sj.bjc.6604155
更新日期:2008-02-26 00:00:00
abstract:BACKGROUND:To document the effect of bivalent HPV immunisation on cervical cytology as a screening test and assess the implications of any change, using a retrospective analysis of routinely collected data from the Scottish Cervical Screening Programme (SCSP). METHODS:Data were extracted from the Scottish Cervical Cal...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2015.474
更新日期:2016-03-01 00:00:00
abstract::Heterogeneity of DNA content in multiple hepatocellular carcinomas (HCCs) was investigated by flow cytometry in 62 tumours from 26 patients who had undergone surgical treatment for multiple synchronous HCCs. Heterogeneity of DNA content was defined (a) when tumours had a different DNA ploidy pattern or (b) when the di...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1997.387
更新日期:1997-01-01 00:00:00
abstract::Urethane was found to be uniformly distributed in all the major organs of foetal, young and adult ICR/Jcl mice and then to disappear rapidly as measured by the incorporation of urethane-carbonyl-14C, thus permitting the accurate comparison of tumour susceptibility of cells in various organs of mice at different ages. ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1976.83
更新日期:1976-05-01 00:00:00
abstract::Tumour angiogenesis is essential for progression of solid tumours and constitutes an interesting target for therapy. However, impaired tumour blood supply may also be an important obstacle for treatment by radiotherapy and chemotherapy. Estramustine has been shown to increase tumour blood flow and potentiate the effec...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6690333
更新日期:1999-04-01 00:00:00
abstract::The family history of cancer in children treated for a solid malignant tumour in the Paediatric Oncology Department at Institute Gustave-Roussy, has been investigated. In order to determine the role of germline p53 mutations in genetic predisposition to childhood cancer, germline p53 mutations were sought in individua...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1054/bjoc.2000.1167
更新日期:2000-06-01 00:00:00
abstract::Squamous cell carcinoma and adenocarcinoma of the oesophagus are cancers that develop from distinct epithelial sub-types; however, they are both related to chronic inflammation of differing aetiologies. Inflammation leads to somatically inherited genetic mutations altering control of the cell cycle, DNA replication an...
journal_title:British journal of cancer
pub_type: 杂志文章,评审
doi:10.1038/sj.bjc.6605126
更新日期:2009-07-07 00:00:00
abstract::The natural history of 45 cases of smouldering leukaemia has been studied. Males and females were equally represented, with a median age of 60.5. The median survival of the whole group was only 20 months, but rare cases lived 10 years or longer. 38% developed acute leukaemia; the remainder usually died of the results ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1982.179
更新日期:1982-08-01 00:00:00
abstract::The patterns of early and late relapses (those occurring later than 3 years after diagnosis) in 432 patients achieving complete remission after treatment for stage I and II Hodgkin's disease at the Royal Marsden Hospital between 1964 and 1983 were studied to identify factors predicting for late relapse. The incidence ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1989.257
更新日期:1989-08-01 00:00:00
abstract:BACKGROUND:Currently, none of the available colorectal adenocarcinoma (CAC) testing has been established as a well-accepted diagnosis tool, particularly for the early stage of CAC. The recent discovery of serum microRNA (miRNA) profile has provided a new auxiliary approach for tumour diagnosis. Our study is involved in...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2014.489
更新日期:2014-11-11 00:00:00