Abstract：
:A method for testing organic chemicals for their carcinogenic potential is described. Baby hamster kidney cells (BHK-21/C1 13) were exposed to different doses of test compound in liquid tissue culture medium containing rat liver post-mitochondrial supernatant and cofactors (S-9 mix) to aid metabolism, but without serum. Survival of cells following exposure to the compound was assessed by cloning in liquid growth medium. Transformation was assessed by colony growth in semi-solid agar. The dose-response curve for survival was used to determine the LC50 of the compound. A dose-response curve for transformation was constructed and a 5-fold increase in transformation frequency at the LC50 was regarded as a positive test result. The method may also be used for testing gaseous compounds. Cells grown in monolayers and overlaid with serum-free medium and S-9 mix were exposed to vinyl chloride gas mixed with air. After exposure, the treated cells were trypsinized, resuspended in growth medium, and survival and transformation assays performed. The methods described are illustrated by examples taken from an evaluation study using 120 compounds and found to be more than 90% accurate in distinguishing between carcinogens and non-carcinogens.
journal_name
Br J Cancerjournal_title
British journal of cancerauthors
Styles JAdoi
10.1038/bjc.1977.231subject
Has Abstractpub_date
1977-11-01 00:00:00pages
558-63issue
5eissn
0007-0920issn
1532-1827journal_volume
36pub_type
杂志文章abstract：:In vivo growth characteristics of myeloid leukaemia induced by whole-body irradiation of CBA/H male mice were examined in the strain of origin by procedures expected to enhance or depress immunological responses. Syngeneic growth in vivo (survival time and frequency of takes) was not modified by attempted active immun...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1982.68
更新日期：1982-03-01 00:00:00
abstract：:The effects of X-radiation on the Nembutal-induced redistribution of the cardiac output in two types of transplanted mouse tumours and some normal mouse tissues have been investigated, using rubidium-86 and 125I-human serum albumin. Irradiation causes an increase in 86Rb uptake (relative blood perfusion) by the tumour...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1976.186
更新日期：1976-10-01 00:00:00
abstract：:The aim of the present study was to evaluate the occult lymph node carcinomatous diffusion in head and neck squamous cell carcinoma (HNSCC). A total of 1328 lymph nodes from 31 patients treated between 2004 and 2005 were prospectively evaluated by routine haematoxylin-eosin-safran (HES) staining, immunohistochemistry ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6603073
更新日期：2006-04-24 00:00:00
abstract：:Three hundred and ninety women participated in the quality of life (QL) study of ACCOG1, a high-dose vs conventional adjuvant chemotherapy breast cancer trial, for patients with a high risk of relapse. Patients completed the European Organisation for Research and Treatment of Cancer QLQ-C30, questions on menopausal sy...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6603454
更新日期：2006-12-18 00:00:00
abstract：:In the BUPA Study, a prospective study of 22,000 men attending a screening centre in London, serum samples were collected and stored. The concentration of beta-carotene was measured in the stored serum samples from 271 men who were subsequently notified as having cancer and from 533 unaffected controls, matched for ag...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1988.97
更新日期：1988-04-01 00:00:00
abstract：:Axillary lymph nodes draining mammary carcinoma showed an alteration of both micro-architectue and lymphocyte subpopulations. Lymph nodes with a normal or increased T and/or B lymphocyte compartment (assessed by histology) had a low incidence of nodal tumour spread, whilst hypocellularity of the T- or B-lymphocyte-dep...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1980.8
更新日期：1980-01-01 00:00:00
abstract：:The aim of this study was to determine the dose-limiting toxicity (DLT) and establish the recommended dose for mitomycin C added every 3 weeks to the standard combination dose of capecitabine. Cohorts of at least three patients with pretreated gastrointestinal carcinoma received capecitabine 1000 mg m(-2) orally twice...
journal_title：British journal of cancer
pub_type： 临床试验,杂志文章,多中心研究
doi：10.1038/sj.bjc.6602025
更新日期：2004-08-31 00:00:00
abstract：:Although CD133 has been shown to be a marker for cancer stem cells in various tumours, its expression in pancreatic cancer has not yet been clinically reported. In this study, we investigated the relationship between CD133 expression and clinicopathological factors in pancreatic cancer. Pancreatic head carcinoma speci...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6604307
更新日期：2008-04-22 00:00:00
abstract：BACKGROUND:Head and neck squamous cell carcinoma (HNSCC) patients frequently develop treatment resistance to cetuximab, a monoclonal antibody against EGFR, as well as radiotherapy. Here we addressed extracellular signal-regulated kinase 1/2 (ERK1/2) regulation by cetuximab or fractionated irradiation (IR) and conducted...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/s41416-020-0892-9
更新日期：2020-07-01 00:00:00
abstract：:The distribution of labelled cells through 5 different mouse tumours was measured after a single injection of [3H]-thymidine [( 3H]-TdR) or [3H]-deoxyuridine [( 3H]-UdR). All the tumours had areas where the percentage of labelled cells (the labelling index, LI) was high and areas where the LI was very low. The total a...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1985.3
更新日期：1985-01-01 00:00:00
abstract：:Previous studies have shown that multidrug resistance (MDR) in the doxorubicin-selected lung tumour cell lines COR-L23/R, GLC4/ADR and MOR/R is associated with overexpression of the MRP gene. In this study we report that resistance to daunorubicin, vincristine and rhodamine 123 can be partially reversed in these cell ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1995.281
更新日期：1995-07-01 00:00:00
abstract：:We assayed methyl-p-hydroxyphenyllactate esterase (MeHPLAase) activity in 63 cases of primary laryngeal squamous cell carcinoma. MeHPLAase activity did not show any correlation with oestrogen, progesterone and epidermal growth factor (EGF) receptor levels. No significant relationship was found between MeHPLAase activi...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1998.210
更新日期：1998-04-01 00:00:00
abstract：:In 101 breast cancer patients, measurement of oestrogen receptor status in multiple biopsies across a tumour reveals a highly significant difference in the proportion of patients remaining either disease-free (P less than 0.04) or alive (P less than 0.005), when those with uniformly receptor positive (++) primary tumo...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1989.129
更新日期：1989-04-01 00:00:00
abstract：:The results of treating two series of patients with Burkitt's lymphoma are presented in the form of survival curves. The second series shows an improved survival rate which seems to be due to a potentiating effect by potassium iodide on oral cyclophosphamide. So far no reason for this effect has been found. ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1971.6
更新日期：1971-03-01 00:00:00
abstract：:Gain of 1q is one of the most common alterations in cancer and has been associated with adverse clinical behaviour in ependymoma. The aim of this study was to investigate this region to gain insight into the role of 1q genes in intracranial paediatric ependymoma. To address this issue we generated profiles of eleven e...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6604651
更新日期：2008-10-07 00:00:00
abstract：:The growth of s.c. Walker 256 carcinoma was found to be independent of secondary growths induced by i.v. injection. Tumour cells injected i.v. lodged mainly in the lungs, with small clusters of cells in the lymph nodes. The rate of cellular proliferation of these secondary growths of Walker carcinoma was significantly...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1978.12
更新日期：1978-01-01 00:00:00
abstract：:Oestrogen receptor (ER) is used routinely to predict endocrine responsiveness in patients with breast cancer. A second ER, ERbeta has been described but its significance remains undefined; most studies have described mRNA levels rather than protein expression. Here, we demonstrate for the first time, immunohistochemic...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1054/bjoc.2001.1721
更新日期：2001-04-20 00:00:00
abstract：:A pilot study of continuous infusional 5-fluorouracil 200 mg m-2 per 24 h by ambulatory pump and Hickman line for the entire treatment cycle with mitomycin C 8 mg m-2 i.v. on day 1 and cisplatin 75 mg m-2 i.v. on day 1, both repeated every 28 days, was carried out in 31 previously untreated patients with advanced non-...
journal_title：British journal of cancer
pub_type： 临床试验,杂志文章
doi：10.1038/bjc.1995.255
更新日期：1995-06-01 00:00:00
abstract：:High experienced continuity of care in patients with cancer is associated with lower needs for care, better quality of life and better psychological outcomes. We developed and evaluated an intervention to improve experienced continuity. The intervention, consisted of (1) a 17-item patient-completed continuity assessme...
journal_title：British journal of cancer
pub_type： 杂志文章,随机对照试验
doi：10.1038/sj.bjc.6604836
更新日期：2009-01-27 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：:Survival and proliferation of cell cultures from human anaplastic astrocytomas were shown to be enhanced by glucocorticoids with an optimal concentration of approximately 2.5 x 10(-5)M (10 micrograms/ml). The stimulation of proliferation was only observed in a clonal growth assay and was reversed as the size of indivi...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1980.161
更新日期：1980-06-01 00:00:00
abstract：:Cancer incidence in the Falkland Islands, 1989-2000, was compared with rates in England and Wales, from which most Islanders originate. Colon and rectum cancer incidence was significantly raised 1989-93 but greatly reduced after 1994, when colonoscopic screening in high-risk families and sigmoidoscopic screening in th...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1054/bjoc.2001.2099
更新日期：2001-11-02 00:00:00
abstract：:The prognostic value of several clinical and histopathological characteristics has been evaluated in patients with Dukes' B and C carcinoma of the rectum and the rectosigmoid. Data on 260 Dukes' B and 208 Dukes' C tumours entered into a prospective, randomized clinical trial of post-operative radiotherapy (50 Gy given...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1988.192
更新日期：1988-08-01 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：:To find out whether ultrasound-guided fine-needle aspiration (FNA) and ultrasound and stereotactic-guided large core needle biopsy (LCNB) are reliable alternatives to needle-localised open breast biopsy (NLBB) in daily practice, we performed a retrospective study and evaluated the validity of these methods. In all, 71...
journal_title：British journal of cancer
pub_type： 临床试验,杂志文章
doi：10.1038/sj.bjc.6601559
更新日期：2004-02-09 00:00:00
abstract：:Neuroendocrine tumours (NETs) comprise a heterogenous group of malignancies with an often unpredictable course, and with limited treatment options. Thus, new diagnostic, prognostic, and therapeutic markers are needed. To shed new lights into the biology of NETs, we have by cDNA transcript profiling, sought to identify...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6604565
更新日期：2008-10-21 00:00:00
abstract：:To study the effect of oral supplemental calcium on colonic epithelial proliferation, 17 adenomatous polyp patients received 1.5 g Ca2+ as calcium carbonate daily during 12 weeks, while on a calcium constant diet, based on the patients' habitual diet. Seven subsequently continued calcium supplementation for 9 months w...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1993.93
更新日期：1993-03-01 00:00:00
abstract：:The efficacy of photodynamic therapy (PDT) using delta-aminolaevulinic acid (ALA)-induced protoporphyrin IX (PpIX) sensitisation and laser light at 635 nm was investigated in the treatment of experimental hepatic tumours. The model of liver tumours was induced either by local inoculation or by administration of tumour...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1996.584
更新日期：1996-11-01 00:00:00
abstract：BACKGROUND:The vascular disrupting agent combretastatin A4 phosphate (CA4P) causes major regression of animal tumours when given as combination therapy. METHODS:Patients with advanced cancer refractory to standard therapy were treated with CA4P as a 10-min infusion, 20 h before carboplatin, paclitaxel, or paclitaxel, ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6605650
更新日期：2010-04-27 00:00:00
abstract：:Sodium polyanethol sulphonate (SPS) when incorporated into rat erythrocyte lysate (REL) containing semi-solid agar medium at 1 mg ml-1. markedly enhanced colony formation by a number of anchorage-independent cell lines. REL usually needed to be included for the expression of SPS induced potentiation as in its absence ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1984.230
更新日期：1984-11-01 00:00:00
