Abstract:
:The effect of acute carbon monoxide (CO) breathing on blood oxygenation and tumour hypoxia was related to the radiation response of the C3H/Tif mammary carcinoma. Blood gas analysis showed that CO breathing caused a time- and dose-dependent formation of carboxyhaemoglobin (HbCO), a significant left shift of the oxygen dissociation curve and a reduction in tumour blood perfusion. These factors all contributed to a marked drop in tumour oxygen supply. In agreement with this, tumour hypoxia was found to be significantly increased: Microelectrode PO2 measurements showed a clear relationship between CO concentration and the proportion of low PO2 measurements (< or = 5 mmHg). The fraction of clonogenic hypoxic cells increased from 8% in air-breathing animals to 13%, 18% and 54% with 75,220 and 660 p.p.m. CO respectively. The tumour hypoxia resulted in significant radiation modification. The local tumour control after single-dose and fractionated irradiation gave TCD50 enhancement ratios (relative to air-breathing controls) of 0.90, 0.85 and 0.89 for single dose and five or ten fractions given in 5 days (P < 0.005 for all values). For 15 fractions in 5 days with 6- 6- and 12 h intervals, the TCD50 was similar in CO- and air-breathing mice, presumably as a consequence of insufficient reoxygenation during the short inter-fraction intervals. It is concluded that elevated HbCO levels to increased tumour hypoxia and that the induced hypoxia has a significant impact on the local tumour control also after fractionated irradiation.
journal_name
Br J Cancerjournal_title
British journal of cancerauthors
Grau C,Khalil AA,Nordsmark M,Horsman MR,Overgaard Jdoi
10.1038/bjc.1994.8subject
Has Abstractpub_date
1994-01-01 00:00:00pages
50-7issue
1eissn
0007-0920issn
1532-1827journal_volume
69pub_type
杂志文章abstract::The molecular events that drive the initiation and progression of ovarian adenocarcinoma are not well defined. We have investigated changes in gene expression in ovarian cancer cell lines compared to an immortalized human ovarian surface epithelial cell line (HOSE) using a cDNA array. We identified 17 genes that were ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1054/bjoc.2000.1620
更新日期:2001-02-02 00:00:00
abstract:BACKGROUND:Although salt intake is considered a probable risk factor for gastric cancer, relevant studies have provided heterogeneous results, and the magnitude of the association has not been accurately quantified. METHODS:To quantify gastric cancer risk in relation to dietary salt exposure according to Helicobacter ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6605993
更新日期:2011-01-04 00:00:00
abstract:BACKGROUND:The urokinase plasminogen activator (uPA) system is one of the best-investigated protease systems, both under physiological and pathological conditions, including various types of cancer. However, effects of co-expression of members of the uPA system in soft-tissue sarcoma (STS) patients at the protein level...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6605520
更新日期:2010-02-16 00:00:00
abstract::In this study, the role of parity in conferring protection of the mammary gland against chemical carcinogenesis induced by 7,12-dimethylbenz(a)anthracene (DMBA) was investigated. Experiments were also carried out to determine if an 'interrupted' pregnancy was capable of reducing the incidence of mammary tumour inducti...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1988.88
更新日期:1988-04-01 00:00:00
abstract::Hypoxic cells in KHT sarcomas were characterized using fluorescence activated cell sorting based on the diffusion properties of the fluorochrome Hoechst 33342. Tumour-bearing female C3H/HeJ mice were injected i.v. with 10 micrograms g-1 Hoechst 33342 and the cells derived from the tumours sorted on the basis of their ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1988.207
更新日期:1988-09-01 00:00:00
abstract:BACKGROUND:Low cancer awareness may contribute to delayed diagnosis and poor cancer survival. We aimed to quantify socio-demographic differences in cancer symptom awareness and barriers to symptomatic presentation in the English population. METHODS:Using a uniquely large data set (n=49 270), we examined the associatio...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2015.164
更新日期:2015-07-28 00:00:00
abstract:BACKGROUND:Tumour budding has been reported to reflect invasiveness, metastasis and unfavourable prognosis in colorectal cancer. The aim of the study was to examine the relationship between tumour budding and clinicopathological characteristics, tumour microenvironment and survival in patients with primary operable col...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2016.173
更新日期:2016-07-12 00:00:00
abstract::Hepatocyte growth factor (HGF), through Met receptor binding, fulfils numerous functions in invasive tumour growth (survival/proliferation, motility, apoptosis), but epigenetic control of gene expression in this process is poorly understood. In HGF-treated breast cancer cells we studied (a) the chemoinvasion towards C...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6604726
更新日期:2008-11-18 00:00:00
abstract:BACKGROUND:Uncertainty remains about the associations of adiposity with intestinal cancer in China and by its anatomical subtype. METHODS:The prospective China Kadoorie Biobank recorded 3024 incident cases of colorectal (CRC) and 143 cases of small intestine (SIC) cancer during a 10-year follow-up among 509 568 partic...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/s41416-018-0124-8
更新日期:2018-07-01 00:00:00
abstract::By using a quantitative RNA-RNA solution hybridisation method, the average number of mdr1 RNA transcripts per cell was measured in total nucleic acid extracts of leukaemic cells from patients with acute leukaemia. The results in different types of leukaemia were (number of patients with detectable mdr1 RNA/total numbe...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1992.255
更新日期:1992-08-01 00:00:00
abstract::To identify tumour and tumour-associated antigens in patients with hepatocellular carcinoma (HCC) one may find potential diagnostic markers and immunotherapeutic targets. In the current study, 30 distinct antigens reactive with serum IgG from HCC patients were identified by serological analysis of cDNA expression libr...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6602460
更新日期:2005-03-14 00:00:00
abstract:BACKGROUND:The clinical utility of machine-learning (ML) algorithms for breast cancer risk prediction and screening practices is unknown. We compared classification of lifetime breast cancer risk based on ML and the BOADICEA model. We explored the differences in risk classification and their clinical impact on screenin...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/s41416-020-0937-0
更新日期:2020-09-01 00:00:00
abstract:BACKGROUND:Tumoural interstitial hypertension, possibly modulated by platelet-derived and vascular endothelial growth factor receptors (PDGFR and VEGFR), may mediate resistance to chemotherapy. METHODS:Forty-eight patients with advanced solid tumours received oral PDGFR inhibitor CP-868,596 (60-100 mg twice daily (BID...
journal_title:British journal of cancer
pub_type: 杂志文章,多中心研究
doi:10.1038/sj.bjc.6605941
更新日期:2010-11-09 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::We examined bone marrow aspirates from 100 metastasis-free primary breast cancer patients. In 38/100 patients (38%), tumour cells were detected in the marrow using an immunocytochemical technique with a cocktail of two monoclonal antibodies: anti-EMA and anti-cytokeratin. Median follow-up was 34 months: 15/38 (39%) tu...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1994.103
更新日期:1994-03-01 00:00:00
abstract:BACKGROUND:MicroRNA (miRNA)-126 (miR-126) is an endothelial-specific miRNA located within intron 7 of epidermal growth factor-like domain 7 (EGFL7). However, the role of miR-126 in cancer is controversial. METHODS:We examined the function of miR-126 in oral squamous cell carcinoma (OSCC) cells. Furthermore, a series o...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2012.330
更新日期:2012-08-07 00:00:00
abstract::Carzelesin is a cyclopropylpyrroloindole analogue which acts as a DNA-sequence-specific alkylating agent. In this phase I study, Carzelesin was given as a 4-weekly 10 min i.v. infusion to 51 patients with advanced solid tumours. Patients received a median of two courses (range 1-5) at one of nine dose levels: 24, 48, ...
journal_title:British journal of cancer
pub_type: 临床试验,杂志文章
doi:10.1038/sj.bjc.6690232
更新日期:1999-03-01 00:00:00
abstract::Flunarizine is a class IV calcium channel blocker which increases oxygen delivery to hypoxic regions in solid tumours, exerting a radiosensitising effect in vivo in animal tumour models. Precisely how the drug improves oxygenation is not well understood. We hypothesised that metabolic conditions present within solid t...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1993.134
更新日期:1993-04-01 00:00:00
abstract::Dihydropyrimidine dehydrogenase (DPD) is the initial and rate-limiting enzyme of 5-fluorouracil (5-FU) catabolism. We report lymphocytic DPD data concerning a group of 53 patients (23 men, 30 women, mean age 58, range 36-73), treated by 5-FU-based chemotherapy in different French institutions and who developed unantic...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6690098
更新日期:1999-02-01 00:00:00
abstract:BACKGROUND:To report the long-term outcomes of a phase III trial designed to test two hypotheses: (1) elective nodal irradiation (ENI) is superior to conventional field irradiation (CFI), and (2) chemoradiotherapy plus erlotinib is superior to chemoradiotherapy in locally advanced oesophageal squamous cell cancer (ESCC...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/s41416-020-01054-6
更新日期:2020-11-01 00:00:00
abstract:BACKGROUND:It has been a challenge to determine breast cancer clonality accurately. The aim of the present study was to assess methods using formalin-fixed paraffin-embedded (FFPE) tissue to differentiate new primary tumours from true recurrences that are associated with poorer prognoses and often require more aggressi...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2012.505
更新日期:2012-12-04 00:00:00
abstract:BACKGROUND:New prognostic markers are needed to identify patients with Ewing sarcoma (EWS) and osteosarcoma unlikely to benefit from standard therapy. We describe the incidence and association with outcome of circulating tumour DNA (ctDNA) using next-generation sequencing (NGS) assays. METHODS:A NGS hybrid capture ass...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/s41416-018-0212-9
更新日期:2018-08-01 00:00:00
abstract::The aim of this study was to investigate whether immunohistochemical staining patterns of tissue inhibitor of metalloproteinases TIMP-2 and matrix metalloproteinases MMP-2 and MMP-9 can be predictors of tumour stage and survival time in colorectal cancer. Frozen tumour sections from 212 patients operated on between Ja...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1997.466
更新日期:1997-01-01 00:00:00
abstract::In this study, we aimed to analyse human cancer cell-platelet interactions in functional cell analyses and explore the molecular mechanisms behind tumour progression. Various functional analyses of gastric cancer (GC) cells were performed after direct/indirect co-incubation with platelets derived from GC patients. Fur...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/s41416-020-01134-7
更新日期:2020-10-28 00:00:00
abstract::Id protein family consists of four members namely Id-1 to Id-4. Different from other basic helix-loop-helix transcription factors, they lack the DNA binding domain. Id proteins have been shown to be dysregulated in many different cancer types and their prognostic value has also been demonstrated. Recently, Id-1 has be...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6604035
更新日期:2007-11-19 00:00:00
abstract::To assess the precise role of IGF1 in benign and malignant breast diseases, we analysed the tissular localisation, characterised, and quantified specific insulin-like growth factor 1 (IGF1) binding sites in these heterogenous tissues, using histo-autoradiographic analysis (HAA). The 125I-IGF1 binding was performed on ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1992.252
更新日期:1992-08-01 00:00:00
abstract::The work presented here has concerned the study of early, as well as late, enzymic changes occurring during diethylnitrosamine-induced hepatocarcinogenesis and liver regeneration after partial hepatectomy in comparison with normal liver differentiation. Rank correlation analysis of the enzyme data suggested a step-wis...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1983.222
更新日期:1983-10-01 00:00:00
abstract:BACKGROUND:MEK is activated in ∼40% colorectal cancer (CRC) and 20-30% non-small cell lung cancer (NSCLC). Selumetinib is a selective inhibitor of MEK1/2, which is currently in clinical development. METHODS:We evaluated the effects of selumetinib in vitro and in vivo in CRC and NSCLC cell lines to identify cancer cell...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2012.129
更新日期:2012-05-08 00:00:00
abstract:BACKGROUND:A phase Ib study of binimetinib and capecitabine for gemcitabine-pretreated biliary tract cancer (BTC) patients was conducted. METHODS:Binimetinib and capecitabine were dosed twice daily on days 1-14, in 3-week cycles. In the dose-escalation (DE) part, three dose levels (DL) were tested (DL1: binimetinib/ca...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/s41416-019-0523-5
更新日期:2019-08-01 00:00:00
abstract::We compared the long-term impact of 1- and 2-year screening mammography intervals using prognostic, screening, and outcome information for women aged 50-74 years obtained from the Screening Mammography Program of British Columbia in two time periods, prior to 1997 (policy of annual mammography) and after 1997 (biennia...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6602393
更新日期:2005-03-14 00:00:00