Abstract:
:Based on the assumption that an accelerated proliferation process prevails in tumour cell residues after surgery, the possibility that treatment acceleration would offer a therapeutic advantage in postoperative radiotherapy of locally advanced head and neck cancer was investigated. The value of T(pot) in predicting the treatment outcome and in selecting patients for accelerated fractionation was tested. Seventy patients with (T2/N1-N2) or (T3-4/any N) squamous cell carcinoma of the oral cavity, larynx and hypopharynx who underwent radical surgery, were randomized to either (a) accelerated hyperfractionation: 46.2 Gy per 12 days, 1.4 Gy per fraction, three fractions per day with 6 h interfraction interval, treating 6 days per week or (b) Conventional fractionation: 60 Gy per 6 weeks, 2 Gy per fraction, treating 5 days per week. The 3-year locoregional control rate was significantly better in the accelerated hyperfractionation (88 +/- 4%) than in the CF (57+/- 9%) group, P=0.01 (and this was confirmed by multivariate analysis), but the difference in survival (60 +/- 10% vs 46 +/- 9%) was not significant (P=0.29). The favourable influence of a short treatment time was further substantiated by demonstrating the importance of the gap between surgery and radiotherapy and the overall treatment time between surgery and end of radiotherapy. Early mucositis progressed more rapidly and was more severe in the accelerated hyperfractionation group; reflecting a faster rate of dose accumulation. Xerostomia was experienced by all patients with a tendency to be more severe after accelerated hyperfractionation. Fibrosis and oedema also tended to be more frequent after accelerated hyperfractionation and probably represent consequential reactions. T(pot) showed a correlation with disease-free survival in a univariate analysis but did not prove to be an independent factor. Moreover, the use of the minimum and corrected P-values did not identify a significant cut-off. Compared to conventional fractionation, accelerated hyperfractionation did not seem to offer a survival advantage in fast tumours though a better local control rate was noted. This limits the use of T(pot) as a guide for selecting patients for accelerated hyperfractionation. For slowly growing tumours, tumour control and survival probabilities were not significantly different in the conventional fractionation and accelerated hyperfractionation groups. A rapid tumour growth was associated with a higher risk of distant metastases (P=0.01). In conclusion, tumour cell repopulation seems to be an important determinant of postoperative radiotherapy of locally advanced head and neck cancer despite lack of a definite association between T(pot) and treatment outcome. In fast growing tumours accelerated hyperfractionation provided an improved local control but without a survival advantage. To gain a full benefit from treatment acceleration, the surgery-radiotherapy gap and the overall treatment time should not exceed 6 and 10 weeks respectively.
journal_name
Br J Cancerjournal_title
British journal of cancerauthors
Awwad HK,Lotayef M,Shouman T,Begg AC,Wilson G,Bentzen SM,Abd El-Moneim H,Eissa Sdoi
10.1038/sj.bjc.6600119subject
Has Abstractpub_date
2002-02-12 00:00:00pages
517-23issue
4eissn
0007-0920issn
1532-1827journal_volume
86pub_type
临床试验,杂志文章,随机对照试验abstract::Several studies of breast tumour histology and oestrogen receptor (ER) contents report an inverse correlation between the density of the stromal lymphoid cell infiltrate and the presence or concentration of ER. Using monoclonal antibodies to lymphoid cell surface markers we have examined the immunophenotype of the inf...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1987.281
更新日期:1987-12-01 00:00:00
abstract:BACKGROUND:There is no consensus agreement regarding optimal management of locally excised ductal carcinoma in situ (DCIS) or features of greatest assistance in predicting disease behaviour. Cases in the UKCCCR/ANZ DCIS trial have been histologically reviewed to determine the features of prognostic importance. METHOD:...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6605718
更新日期:2010-06-29 00:00:00
abstract::Oxygen is an essential regulator of cellular metabolism, survival, and proliferation. Cellular responses to oxygen levels are monitored, in part, by the transcriptional activity of the hypoxia inducible factors (HIFs). Under hypoxia, HIFs regulate a variety of pro-angiogenic and pro-glycolysis pathways. In solid cance...
journal_title:British journal of cancer
pub_type: 杂志文章,评审
doi:10.1038/sj.bjc.6605551
更新日期:2010-03-02 00:00:00
abstract:BACKGROUND:Bcl-xL has an important role in the control of cell death through its inhibition of apoptosis. The aim of this study was to investigate the clinicopathological significance of Bcl-xL in upper urinary tract urothelial carcinoma (UTUC) and the therapeutic effect of targeting Bcl-xL protein in urothelial carcin...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2013.216
更新日期:2013-06-11 00:00:00
abstract::Platinum diamine dichloride and tetrachloride inhibit the formation of antibody-forming cells in the mouse spleen after injection of sheep red cells. The dichloride is the more effective agent. It acts best when given 2 days after the antigen, which suggests that cells are more sensitive to its action when they are ra...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1971.27
更新日期:1971-03-01 00:00:00
abstract::Question prompt lists (QPLs) have been shown to be an inexpensive and effective communication tool for patients in oncology consultations. We aimed to develop and pilot a QPL for palliative care (PC) patients. In order to identify suitable questions for inclusion in the QPL, we conducted focus groups and individual in...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6601380
更新日期:2003-12-01 00:00:00
abstract::Cultured cells maintained in very low oxygen levels alter their structure, metabolism and genetic expression. Culture conditions for cells were modified to minimise variation of nutrients and to allow normal survival levels after 24 h of hypoxic exposure. Under these hypoxic conditions, glucose consumption and lactate...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1990.264
更新日期:1990-08-01 00:00:00
abstract::Thermosensitisation by step-down heating (SDH) has previously been demonstrated in experimental rodent tumours. The purpose of the study reported here was to investigate whether the SDH effect in tumours in part may be attributed to heat-induced alterations in the capillary network and/or the microenvironment. Two hum...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1994.327
更新日期:1994-09-01 00:00:00
abstract:BACKGROUND:Venous thromboembolism (VTE) frequently complicates cancer. Data on tumour-specific VTE predictors are limited, but may inform strategies to prevent thrombosis. METHODS:We computed incidence rates (IRs) with 95% confidence intervals (CIs) for VTE hospitalisation in a cohort of cancer patients (n=57,591) and...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6605883
更新日期:2010-09-28 00:00:00
abstract::The frequency, in women with breast cancer, of mutations and other variants in the susceptibility gene, BRCA1, was investigated using a population-based case-control-family study. Cases were women living in Melbourne or Sydney, Australia, with histologically confirmed, first primary, invasive breast cancer, diagnosed ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6690008
更新日期:1999-01-01 00:00:00
abstract:BACKGROUND:Alternative treatments are needed for elderly patients with acute myeloid leukaemia, as the disease prognosis is poor and the current treatment is unsuitable for many patients. METHODS:In this study, we investigated whether combining the nucleoside analogue sapacitabine with histone deacetylase (HDAC) inhib...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6605922
更新日期:2010-10-26 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::Previous studies have suggested that infant vaccinations may reduce the risk of subsequent childhood leukaemia. Vaccination histories were compared in 439 children (ages 0-14) diagnosed with acute lymphoblastic leukaemia (ALL) in nine Midwestern and Mid-Atlantic states (USA) between 1 January 1989 and 30 June 1993 and...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6690668
更新日期:1999-09-01 00:00:00
abstract:BACKGROUND:This multicentre, open-label study evaluated the efficacy and safety of SPI-1620, an analogue of endothelin-1, administered in combination with docetaxel as second-line treatment for patients with advanced biliary tract cancer (ABTC). METHODS:Eligible patients received continuous cycles of combination thera...
journal_title:British journal of cancer
pub_type: 杂志文章,多中心研究
doi:10.1038/bjc.2017.160
更新日期:2017-07-11 00:00:00
abstract::The sequential histological changes and neoplastic response occurring in the subcutaneous tissue of rats after injection of surfactants or carcinogens were compared. Twice weekly subcutaneous injections of the surfactants Blue VRS and Light Green SF elicited a deranged connective tissue repair with continued prolifera...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1973.28
更新日期:1973-03-01 00:00:00
abstract::Teratomas have been induced in Japanese quail (Coturnix coturnix Japonica) by intra-testicular injections of 3% zinc chloride solution during a period of testicular growth artificially stimulated by increased photoperiod. These tumours resemble those previously induced by similar methods in domestic fow1 and have hist...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1971.40
更新日期:1971-06-01 00:00:00
abstract:BACKGROUND:When tumour tissue is unavailable, cell-free DNA (cfDNA)can serve as a surrogate for genetic analyses. Because mutated alleles in cfDNA are usually below 1%, next-generation sequencing (NGS)must be narrowed to target only clinically relevant genes. In this proof-of-concept study, we developed a panel to use ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2017.8
更新日期:2017-03-14 00:00:00
abstract:BACKGROUND:In neuroblastoma (NB), the most powerful prognostic marker, the MYCN amplification (MNA), occasionally shows intratumoural heterogeneity (ITH), i.e. coexistence of MYCN-amplified and non-MYCN-amplified tumour cell clones, called heterogeneous MNA (hetMNA). Prognostication and therapy allocation are still uns...
journal_title:British journal of cancer
pub_type: 杂志文章,多中心研究
doi:10.1038/s41416-018-0098-6
更新日期:2018-05-01 00:00:00
abstract:BACKGROUND:Tumour microenvironments can differ according to intratumoural locations. We investigated the immune status at different locations in primary tumours and its clinical significance in oesophageal squamous cell carcinoma (ESCC). METHODS:The number of CD8+ tumour-infiltrating immune cells (TIICs) and PD-1+ TII...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/s41416-019-0622-3
更新日期:2020-02-01 00:00:00
abstract::We examined polymorphisms in exons 3 and 4 of microsomal epoxide hydrolase in 101 patients with colon cancer and compared the results with 203 control samples. The frequency of the exon 3 T to C mutation was higher in cancer patients than in controls (odds ratio 3.8; 95% confidence intervals 1.8-8.0). This sequence al...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6690028
更新日期:1999-01-01 00:00:00
abstract::Temozolomide, an oral cytotoxic agent with approximately 100% bioavailability after one administration, has demonstrated schedule-dependent clinical activity against highly resistant cancers. Thirty patients with minimal prior chemotherapy were enrolled in this phase I trial to characterize the drug's safety, pharmaco...
journal_title:British journal of cancer
pub_type: 临床试验,杂志文章
doi:10.1038/sj.bjc.6690802
更新日期:1999-11-01 00:00:00
abstract::Electrochemotherapy is an anti-tumour treatment that utilizes locally delivered electric pulses to increase cytotoxicity of chemotherapeutic drugs. The aim of our study was to determine whether anti-tumour effectiveness of electrochemotherapy with cisplatin is a consequence of increased plasma membrane permeability ca...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6690222
更新日期:1999-03-01 00:00:00
abstract::Human chorionic gonadotrophin (hCG) and alphafetoprotein (AFP) were measured in culture media from a panel of 29 cell lines including 9 bladder carcinomas, 5 'normal' bladder epithelia, 10 germ cell tumours, and 5 miscellaneous tumours and 'normal' cell lines. In 7 of the 9 bladder carcinomas and 4 of the 5 'normal' b...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1987.126
更新日期:1987-06-01 00:00:00
abstract::The objective of the study was to evaluate the effect of neoadjuvant chemotherapy on the survival of patients with oropharyngeal cancer. Patients with a squamous cell carcinoma of the oropharynx for whom curative radiotherapy or surgery was considered feasible were entered in a multicentric randomized trial comparing ...
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.2000.1512
更新日期:2000-12-01 00:00:00
abstract::We have investigated the effects of 50 min whole-body hyperthermia (WBH; 15 min equilibration followed by 41 degrees C for 35 min) on the toxicity and pharmacokinetics of the radiosensitizer Ro 03-8799 in mice. WBH markedly reduced Ro 03-8799 LD50/7d from 779 to 259 micrograms g-1 (P less than 0.001). Pharmacokinetics...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1987.96
更新日期:1987-05-01 00:00:00
abstract:BACKGROUND:Immunohistological assessment of Ki 67 expression is less expensive than Oncotype Dx, which is currently used to identify patients with lymph node-negative breast cancer, who will benefit from adjuvant chemotherapy. METHODS:The relationship of immunohistologically measured Ki 67 to Oncotype DX recurrence sc...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2011.402
更新日期:2011-10-25 00:00:00
abstract:BACKGROUND:Aspirin use has been shown to lower incidence and mortality in cancer patients. The aim of this population-based study was to determine the effect of postdiagnosis low-dose aspirin use on survival of patients with oesophageal cancer. METHODS:Patients with oesophageal cancer (1998-2010) were selected from th...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2016.65
更新日期:2016-04-26 00:00:00
abstract:BACKGROUND:FOXA1 expression is a good prognostic marker for endocrine therapy in hormone-positive breast cancer. We retrospectively examined breast cancer patients with luminal human epidermal growth factor receptor 2 (HER2)-negative tumours, as defined by immunohistochemistry, who received neo-adjuvant chemotherapy (N...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2014.595
更新日期:2015-01-20 00:00:00
abstract:BACKGROUND:Immunoscore have shown a promising prognostic value in many cancers. We aimed to establish and validate an immune classifier to predict survival after curative resection of hepatocellular carcinoma (HCC) patients who have undergone curative resection. METHODS:The immunohistochemistry (IHC) classifier assay ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/s41416-020-0864-0
更新日期:2020-07-01 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