Abstract：
:The relationship between colony numbers and concentration of cells plated is an important parameter of clonogenic assay systems. The cloning efficiency for an ideal sample should be independent of cell concentration, thus giving a straight line through the origin when colony numbers are plotted against cell concentration. A simple statistical method has been developed to test if this is the case for individual tumour samples. Colony data from 51 freshly obtained tumour samples, which had sufficient cells to plate 3 or more dilutions and gave at least 20 colonies per plate at one or more of the dilutions, were tested. The results indicated that colony formation was linear for 27 (53%) of the samples. The remaining 24 samples could be classified into 2 groups: type I, in which cloning efficiencies increased with increasing cell concentration and type II, which had reduced cloning efficiencies at high cell concentrations. Fifteen (29%) of the samples had type I non-linearity and 9 (18%) exhibited non-linearity of type II. These findings indicate that the relationship between colonies and cells plated should be examined for each biopsy sample particularly in each experiment where the effects of cytotoxic drugs are tested.
journal_name
Br J Cancerjournal_title
British journal of cancerauthors
Eliason JF,Aapro MS,Decrey D,Brink-Petersen Mdoi
10.1038/bjc.1985.195subject
Has Abstractpub_date
1985-09-01 00:00:00pages
311-8issue
3eissn
0007-0920issn
1532-1827journal_volume
52pub_type
杂志文章abstract：:Combination chemotherapy with cytosine arabinoside, cyclophosphamide and L-asparaginase (Asnase) was given to 22 children with acute lymphocytic leukaemia (ALL) with a white-cell count greater than 30 X 10(9)/1, and other features suggestive of poor prognosis. Complete remission was induced in all patients--in 19 afte...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1978.258
更新日期：1978-11-01 00:00:00
abstract：:Isomerisation to all-trans-retinoic acid (ATRA) is widely accepted as the key mechanism underlying the favourable clinical properties of 13-cis-retinoic acid (13cisRA). As intracellular metabolism of ATRA by CYP26 may result in clinical resistance to 13cisRA, an increase in efficacy may be achieved through modulation ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6603779
更新日期：2007-06-04 00:00:00
abstract：:It has been reported that the rho genes, which consist of a ras-related small GTPase protein family, regulate cytoskeletal structures and have the potential to transform cultured cells. To investigate the biological relevance of the rho genes in pancreatic carcinogenesis, we examined expressions of the rhoA, B and C g...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1998.23
更新日期：1998-01-01 00:00:00
abstract：:Monoclonal antibodies 19-9 and C-50 were used to assay the cancer associated tumour antigens CA 19-9 and CA-50 in plasma from patients with confirmed pancreatic cancer, and related to the blood group and Lewis blood cell status. The plasma expressions of CA 19-9 or CA-50 were similar, including cases where the patient...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1990.241
更新日期：1990-07-01 00:00:00
abstract：:Fluorescence polarization measurement during the progress of fluorochromasia has been used to study the response of human lymphocytes to phytohaemagglutinin (PHA) and to tumour-associated antigens, as a basis for the detection of malignant disease. Polarization (P) values of both stimulated and unstimulated lymphocyte...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1980.9
更新日期：1980-01-01 00:00:00
abstract：:Cells of a patient with Turcot's syndrome and of her parents were evaluated for the presence of molecular alterations in the p53 and the Ki-ras gene. Deletions on chromosome 17p, overexpression and point mutations of the p53 gene as well as mutations of the Ki-ras gene were detected in primary and metastatic tumour bu...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1993.379
更新日期：1993-09-01 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：:One hundred and eighteen doctors who treat pulmonary neoplasms in Ontario were asked how they would wish to be treated if they had non-small cell lung cancer. Four different scenarios were given. The physicians were then asked if they would consent to take part as subjects in one or more clinical trials for which they...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1986.224
更新日期：1986-10-01 00:00:00
abstract：:The x(c)(-) cystine transporter enhances biosynthesis of glutathione, a tripeptide thiol important in drug resistance and cellular defense against oxidative stress, by enabling cellular uptake of cystine, a rate-limiting precursor. Because it is known to regulate glutathione levels and growth of various cancer cell ty...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6604485
更新日期：2008-08-05 00:00:00
abstract：BACKGROUND:Malignancy alters cellular complex lipid metabolism and membrane lipid composition and turnover. Here, we investigated whether tumorigenesis in cancer-derived prostate epithelial cell lines influences protein kinase C-linked turnover of ethanolamine phosphoglycerides (EtnPGs) and alters the pattern of ethano...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2014.457
更新日期：2014-10-14 00:00:00
abstract：BACKGROUND:Elderly cancer patients form a heterogeneous population in which therapeutic decision-making is often difficult. The aim of this randomised phase II trial was to evaluate the feasibility and activity of weekly docetaxel/gemcitabine (DG) followed by erlotinib after progression (arm A) vs erlotinib followed by...
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.2011.331
更新日期：2011-10-11 00:00:00
abstract：BACKGROUND:In two clinical trials of the vascular endothelial growth factor (VEGF) receptor inhibitor pazopanib in advanced renal cell carcinoma (mRCC), we found interleukin-6 as predictive of pazopanib benefit. We evaluated the prognostic significance of candidate cytokines and angiogenic factors (CAFs) identified in ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2017.206
更新日期：2017-08-08 00:00:00
abstract：:Eighteen patients with inoperable hepatocellular carcinoma (HCC) were treated with intrahepatic arterial yttrium-90 microspheres. All these patients showed a lung shunting below 15% and a tumour-to-normal ratio higher than 2 as determined by diagnostic technetium-99m macroaggregated albumin (Tc-MAA) gamma scintigraphy...
journal_title：British journal of cancer
pub_type： 临床试验,杂志文章
doi：10.1038/bjc.1994.436
更新日期：1994-11-01 00:00:00
abstract：:In compiling official mortality statistics, rules for selecting the underlying cause of death have changed twice in the last 20 years in England. Mortality statistics for most types of cancer were not greatly affected, but there were significant effects on coding for cancers of colon, liver, breast, prostate, testis a...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6601633
更新日期：2004-03-08 00:00:00
abstract：:In this study, the immunohistochemical expression of a new inducible elastase inhibitor, SKALP (skin-derived anti-leucoproteinase)/elafin, in the tissue of squamous cell carcinoma and uninvolved oesophageal mucosa was studied using a polyclonal rabbit anti-serum against SKALP/elafin. The results were compared with the...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1997.511
更新日期：1997-01-01 00:00:00
abstract：:The aim of this study was to determine the concentration of PDGF in vivo in neoplastic and non-neoplastic brain lesions. Fluid from cystic lesions and cerebrospinal fluid was tested in a radioreceptor assay that detects all described PDGF isoforms. High concentration of PDGF were found in cyst fluids from several astr...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1994.184
更新日期：1994-05-01 00:00:00
abstract：BACKGROUND:OCT3/4 (POU5F1) is an established diagnostic immunohistochemical marker for specific histological variants of human malignant germ cell tumours (GCTs), including the seminomatous types and the stem cell component of non-seminomas, known as embryonal carcinoma. OCT3/4 is crucial for the regulation of pluripot...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2011.270
更新日期：2011-09-06 00:00:00
abstract：:An apparently unique circulating common oncofoetal protein has been identified in rat small-bowel, colonic and pancreatic adenocarcinomas. The tumours were induced by ionizing radiation (small bowel), an alkyl hydrocarbon, 1,2-dimethylhydrazine (colon) and a polyaromatic hydrocarbon, 7,12-dimethylbenz[a]anthracene (pa...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1981.120
更新日期：1981-06-01 00:00:00
abstract：:The potential antitumoral effect of granulocyte-macrophage colony-stimulating factor (GM-CSF) led us to evaluate GM-CSF alone or with dacarbazine (DTIC) in metastatic melanoma in first line randomized phase II. Treatment was arm A: GM-CSF: 5 microg kg(-1), bid, 14 consecutive days every 21 days and arm B: GM-CSF: 5 mi...
journal_title：British journal of cancer
pub_type： 临床试验,杂志文章,多中心研究,随机对照试验
doi：10.1054/bjoc.2001.2120
更新日期：2001-11-16 00:00:00
abstract：:Hepatic arterial floxuridine (HAI) in 35 patients with systemic fluorouracil/folinic acid-resistant colorectal liver metastases achieved a 14% partial response and 26% disease stabilization rate, with a median response duration of 7 months from onset of HAI. ...
journal_title：British journal of cancer
pub_type： 临床试验,杂志文章
doi：10.1038/bjc.1998.627
更新日期：1998-10-01 00:00:00
abstract：:The appearance of a liver DNA synthesis promoter (HP) in rat plasma after dimethylnitrosamine (DMNA) or thioacetamide injection was investigated. After 48 h, DMNA (30 mg kg-1 body weight) produced liver (centrilobular) necrosis and intense hepatic regeneration, as assessed by microscopic observations of liver slices, ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1987.122
更新日期：1987-06-01 00:00:00
abstract：:The combination of heat and chemotherapy was studied in an intraperitoneal tumour model. Rats bearing peritoneal CC531 tumours (2-6 mm) were treated i.p. with cDDP or CBDCA [maximal tolerated dose (MTD)] in combination with regional hyperthermia (41.5 degrees C, 1 h) of the peritoneal cavity. The addition of hyperther...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1994.45
更新日期：1994-02-01 00:00:00
abstract：:Lines of fibroblasts have been established from normal individuals and from patients diagnosed as suffering from one of the mucopolysaccharidoses or mucopolysaccharide-storage diseases. Transformation of these lines with SV40 virus has been found to reduce their capacity to secrete sulphated mucopolysaccharides into t...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1977.156
更新日期：1977-07-01 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：:Circulating serum factors have been said to abrogate the effects of immune response in cancer, i.e. "blocking" and "antigenic inhibition". The aim of this investigation was to isolate such specific factors in a purified and native state. F(ab)2 fragments isolated from hypernephroma were insolubilized on the surfaces o...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1975.279
更新日期：1975-12-01 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：BACKGROUND:Laboratory studies suggest a possible role of magnesium intake in colorectal carcinogenesis but epidemiological evidence is inconclusive. METHOD:We tested magnesium-colorectal cancer hypothesis in the Nurses' Health Study, in which 85 924 women free of cancer in 1980 were followed until June 2008. Cox propo...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2012.76
更新日期：2012-03-27 00:00:00
abstract：BACKGROUND:Non-persistence and non-compliance are common in women prescribed hormonal therapy for breast cancer, but little is known about their influence on recurrence. METHODS:A nested case-control study of associations between hormonal therapy non-persistence and non-compliance and the risk of early recurrence in w...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2013.518
更新日期：2013-09-17 00:00:00
abstract：BACKGROUND:Numerous markers have been evaluated to facilitate the non-invasive diagnostic work-up of mesothelioma. The purpose of this study was to conduct a structured review of the diagnostic performance of non-invasive marker tests for the detection of mesothelioma in patients with suspected mesothelioma. METHODS:S...
journal_title：British journal of cancer
pub_type： 杂志文章,评审
doi：10.1038/bjc.2011.104
更新日期：2011-04-12 00:00:00
abstract：:Patients with refractory metastatic renal cell carcinoma (RCC) were enrolled in a phase II study with teniposide (VM26) and cyclosporin A (CSA) to investigate (1) the effect of CSA on the response rate to VM26; and (2) the effect of CSA on the pharmacokinetics and pharmacodynamics of VM26. Sixteen patients initially r...
journal_title：British journal of cancer
pub_type： 临床试验,杂志文章
doi：10.1038/bjc.1997.127
更新日期：1997-01-01 00:00:00
