Abstract:
:Double stranded RNA (dsRNA) whether isolated from a fungal virus or prepared synthetically (i.e., Poly I Poly C) and endotoxin were found to exert very similar effects on syngeneic murine lymphomata and fibrosarcomata. They cause complete regressions of some established subcutaneous (s.c.) or intradermal (i.d.) tumours but not of intraperitoneal (i.p.) tumours when administered either systemically or directly into the tumour. To achieve this effect the tumours must be fully established and the best results were obtained when treatment was started 7 days after transplant. If treatment is started within the first 3 days following the transplantation of the tumour then only a slight inhibition of growth rate was observed. These agents can also act prophylactically and protect mice against a subsequent challenge but only if this is given i.p. and not if given s.c. or i.d. The prophylactic action is explained by the action of dsRNA and endotoxin on peritoneal macrophages which cause them to become cytotoxic to tumour cells (i.e., to become activated).The therapeutic effect of systemically administered endotoxin and dsRNA on established tumours is not the result of a direct action on the tumour cells themselves but is a complex process requiring the co-operation of several host factors. Haemorrhagic necrosis involving coagulation is essential (i.e., heparinization reduces the regression of tumours) but is not itself sufficient. Immunosuppression by whole body irradiation or by antilymphocyte serum also interferes with the antitumour action of dsRNA and endotoxin in spite of the fact that haemorrhagic necrosis still occurs. Also, the magnitude of the antitumour action correlated in a series of different tumours with their antigenicity. The observed tumour regressions are probably brought about by (1) vascular damage in the tumour which permits immune defence mechanisms of the host to gain access to the tumour and (2) activation of macrophages present within the tumour. The relative contribution of these two mechanisms may depend on the nature of the tumour and the route of administration of the active agents.Dibenyline, which protects against the lethal action of endotoxin by preventing the action of the catecholamines on the α-adrenergic receptors, makes it possible to increase the effectiveness of endotoxin in tumours by allowing a large dose to be given. Lipid A, a derivative of endotoxin which does not contain polysaccharide, has similar antitumour action to dsRNA and endotoxin. Some common features of the chemical structure of lipid A and dsRNA are discussed.
journal_name
Br J Cancerjournal_title
British journal of cancerauthors
Parr I,Wheeler E,Alexander Pdoi
10.1038/bjc.1973.45subject
Has Abstractpub_date
1973-05-01 00:00:00pages
370-89issue
5eissn
0007-0920issn
1532-1827journal_volume
27pub_type
杂志文章abstract::In recent years, large discrepancies were described in the success rate of the tyrosinase reverse transcription polymerase chain reaction (RT-PCR) for detecting melanoma cells in the peripheral blood of melanoma patients. We present a quality control study in which we analysed the reproducibility of detection of tyros...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6690436
更新日期:1999-05-01 00:00:00
abstract::The overall tumour incidence and breast cancer incidence related to hormone replacement therapy (HRT) were followed in a population-based cohort of 29 508 women, aged 25-65 when interviewed in 1990-92. By the end of the follow up in December 1999, there were 226 611 person-years of observation. A total of 1145 maligna...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1054/bjoc.2001.1899
更新日期:2001-09-01 00:00:00
abstract::This cross-sectional survey aimed to evaluate the prevalence of burnout and estimated psychiatric disorders among haemato-oncology healthcare professionals in Italy. The aspects of work that respondents perceive as stressful and satisfying have also been examined. The assessments were made using the Maslach Burnout In...
journal_title:British journal of cancer
pub_type: 杂志文章,多中心研究
doi:10.1038/sj.bjc.6604270
更新日期:2008-03-25 00:00:00
abstract::A mini-review of the literature concerning epigenetic gene regulation in cancer. ...
journal_title:British journal of cancer
pub_type: 杂志文章,评审
doi:10.1054/bjoc.2000.1549
更新日期:2000-12-01 00:00:00
abstract:BACKGROUND:Heterogeneity and low incidence comprise the biggest challenge in sarcoma diagnosis and treatment. Chemotherapy, although efficient for some sarcoma subtypes, generally results in poor clinical responses and is mostly recommended for advanced disease. Specific genomic aberrations have been identified in some...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/s41416-018-0359-4
更新日期:2019-02-01 00:00:00
abstract::In the BUPA study, a prospective study of 22,000 men attending a screening centre in London, the mean serum cholesterol level of the 267 men who developed cancer was 6.66 mmol l-1, not significantly different from the mean level of 6.72 mmol l-1 among the 525 unaffected controls matched for age, smoking history and th...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1989.198
更新日期:1989-06-01 00:00:00
abstract:BACKGROUND:Hepatocellular carcinoma (HCC) is one of the most common types of malignant tumour and has poor prognosis. Currently, systematic chemotherapy is the only approach to prolong survival. Thus the development of new treatment regimens is urgently needed to improve the therapeutic efficacy. Our study intended to ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2017.55
更新日期:2017-04-11 00:00:00
abstract::The chick embryo was used to study the relationship between the onset of tumour neovascularization and tumour growth. Walker 256 carcinosarcoma was implanted on the chrioallantoic membrane (CAM) of about 600 embryos aged 5-16 days. Tumour diameter and changes in the CAM vasculature in response to the implants were rec...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1977.49
更新日期:1977-03-01 00:00:00
abstract::In the first part of this study the availability of folinic acid (FA) and its main active circulating metabolite, 5-methyltetrahydrofolate (5-MTHF), were studied in plasma and cerebrospinal fluid (CSF) from normal subjects after i.v. administration of 100 and 250 mg of FA. 5-MTHF rapidly appeared in plasma, the maximu...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1989.127
更新日期:1989-04-01 00:00:00
abstract:BACKGROUND:The effectiveness of a therapeutic strategy that switches chemotherapy, based on Ki-67 tumour expression after initial therapy, relative to that of standard chemotherapy, has not been evaluated. METHODS:Patients were randomly assigned to the control arm or the Ki-67 response-guided arm (Ki-67 arm). Primary ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/s41416-020-0815-9
更新日期:2020-06-01 00:00:00
abstract::We have examined a series of human colorectal adenomas, carcinomas and cell lines derived from human colorectal cancer for loss of heterozygosity (LOH) on chromosome 11q22-23 by polymerase chain reaction (PCR) amplification of a microsatellite polymorphism of the dopamine D2 receptor (DRD2) locus. LOH was demonstrated...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1994.315
更新日期:1994-09-01 00:00:00
abstract::In a population-based, matched, case-control study from southern Sweden of 571 patients with a first diagnosis of cutaneous malignant melanoma and 913 healthy controls aged 16-80 years, the association between sunbed use and malignant melanoma was evaluated. A total of 250 (44%) cases and 372 (41%) controls reported e...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1054/bjoc.1999.1181
更新日期:2000-05-01 00:00:00
abstract::Metabolic reprogramming towards aerobic glycolysis is a common feature of transformed cells and can be driven by a network of transcription factors. It is well established that c-Myc and hypoxia-inducible factor-1α (HIF-1α) contribute to metabolic reprogramming by driving the expression of glycolytic target genes. Mor...
journal_title:British journal of cancer
pub_type: 杂志文章,评审
doi:10.1038/bjc.2015.360
更新日期:2015-12-01 00:00:00
abstract::In vivo DNA damage and repair was induced by nicotinamide (NAM) in adenotype 12 virus-induced mouse sarcoma A12B3 and sarcoma F inoculated into CBA mice. DNA damage, NAM and NAD concentrations were measured after in vivo exposure to NAM, in tumours and spleens by alkaline elution and by HPLC analysis. Our results indi...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1996.367
更新日期:1996-08-01 00:00:00
abstract::Defects in the apoptotic system are likely to play a role in tumorigenesis. Pancreatic carcinoma cells are extremely resistant to apoptosis induction by chemotherapy suggesting that the apoptosis machinery is faulty. We investigated the integrity of the cytochrome c-dependent apoptotic apparatus in 10 human pancreatic...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6600171
更新日期:2002-03-18 00:00:00
abstract::The traditional cancer drug development pathway is increasingly being superseded by trials that address multiple clinical questions. These are collectively termed Complex Innovative Design (CID) trials. CID trials not only assess the safety and toxicity of novel anticancer medicines but also their efficacy in biomarke...
journal_title:British journal of cancer
pub_type: 共识发展会议,杂志文章,评审
doi:10.1038/s41416-019-0653-9
更新日期:2020-02-01 00:00:00
abstract::High-mol.-wt levan injected locally inhibits the growth of Lewis lung carcinoma in C57BL mice. The inhibition is dependent on the number of tumour cells injected and on the dose of levan. The inhibition decreases tumour incidence and size as well as prolonging survival. The polysaccharide is most effective when inject...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1979.225
更新日期:1979-10-01 00:00:00
abstract::Resistance to cytotoxic agents may be encountered during the treatment of acute myeloblastic leukaemia (AML). P-glycoprotein encoded by the MDR-1 gene has been implicated as a potential drug resistance mechanism in leukaemic cells. In recent years, many data have been accrued concerning the expression of P-glycoprotei...
journal_title:British journal of cancer
pub_type: 杂志文章,评审
doi:10.1038/bjc.1994.70
更新日期:1994-02-01 00:00:00
abstract::Colorectal tumours from MYH polyposis patients display an excess of somatic G : C --> T : A transversions in the adenomatous polyposis coli gene. Here, we identify k-ras mutations in nine out of 54 (16.7%) MYH polyposis tumours. Their presence was associated with increased dysplasia and tubulovillous morphology (P=0.0...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6601747
更新日期:2004-04-19 00:00:00
abstract:BACKGROUND:Low cancer awareness contributes to delay in presentation for cancer symptoms and may lead to delay in cancer diagnosis. The aim of this study was to review the evidence for the effectiveness of interventions to raise cancer awareness and promote early presentation in cancer to inform policy and future resea...
journal_title:British journal of cancer
pub_type: 杂志文章,评审
doi:10.1038/sj.bjc.6605388
更新日期:2009-12-03 00:00:00
abstract:BACKGROUND:Global hypomethylation has been suggested to cause genomic instability and lead to an increased risk of cancer. We examined the association between the global methylation level of peripheral blood leukocyte DNA and breast cancer among Japanese women. METHODS:We conducted a hospital-based case-control study ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2014.223
更新日期:2014-05-27 00:00:00
abstract:BACKGROUND:Prognosis of localised gastrointestinal stromal tumour (GIST) is heterogeneous, notably for patients with AFIP intermediate or high risk of relapse, who are candidates to adjuvant imatinib. We hypothesised that gene expression profiles might improve the prognostication and help to refine the indications for ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2012.390
更新日期:2012-10-09 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:BACKGROUND:Metastatic clear cell renal cell carcinoma (ccRCC) patients have <9% 5-year survival rate, do not respond well to targeted therapy and eventually develop resistance. A better understanding of molecular pathways of RCC metastasis is the basis for the discovery of novel prognostic markers and targeted therapie...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2013.828
更新日期:2014-03-04 00:00:00
abstract::Incidence and mortality data, stage of disease and treatment information for female breast cancer were obtained for the years 1975-1999 for the former Yorkshire Regional Health Authority area, from the Northern and Yorkshire Cancer Registry and Information Service. Deaths by age group and 3-year calendar period were s...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6601614
更新日期:2004-02-09 00:00:00
abstract::Cells from V79 multicell spheroids must be exposed to approximately 50 times more etoposide than exponentially growing monolayers in order to produce the same amount of cell killing. A part of this difference in sensitivity is readily explained by the decrease in growth fraction of large spheroids, and by the protecti...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1993.97
更新日期:1993-03-01 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::NK911 is a novel supramolecular nanocarrier designed for the enhanced delivery of doxorubicin (DXR) and is one of the successful polymer micelle systems to exhibit an efficient accumulation in solid tumours in mice. The purpose of this study was to define the maximum-tolerated dose (MTD) and dose-limiting toxicities (...
journal_title:British journal of cancer
pub_type: 临床试验,杂志文章
doi:10.1038/sj.bjc.6602204
更新日期:2004-11-15 00:00:00
abstract:BACKGROUND:The mitogen-activated protein kinase (MAPK) pathway has been implicated in the molecular pathogenesis of human cancers, including metastatic colorectal cancer (mCRC). This provides a rationale for the development of MAPK-targeted agents such as pimasertib. METHODS:Patients with KRAS mutant mCRC were treated...
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.2015.144
更新日期:2015-06-09 00:00:00
abstract::Thymidine incorporation in vitro by remission lymphocytes from a total of 6 patients with acute myeloid leukaemia (AML) was measured following stimulation by autochthonous and allogeneic AML blasts and cell lines. The early peak response to autochthonous blasts in 2 of these patients (48-72 h) is consistent with the c...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1976.81
更新日期:1976-05-01 00:00:00