Abstract：
:The efficacy of cisplatin [cis-diamminedichloroplatinum (II); DDP] is hampered by acquired or de novo resistance of malignant cells to its cytotoxic effects. We have previously reported that cisplatin resistance parallels glutathione S-transferase (GST) activity in several human small-cell lung cancer cell lines. In the presently described studies, we used sulphasalazine, an inhibitor of GSTs, to evaluate the relative role of GSTs in mediating cisplatin resistance in two human small-cell lung cancer cell lines, NCI H-69 and H-2496. The H-69 cell line, which contained relatively higher GST activity than the H-2496 cell line (317 +/- 7 vs 9 +/- 1 mU mg-1 protein respectively), also displayed a greater degree of cisplatin resistance (IC50 values of 25.0 +/- 3.9 vs 4.5 +/- 1.0 microM respectively). Western blot and Northern blot analyses of purified GSTs revealed the expression of only the pi-class GST in both cell lines. Sulphasalazine inhibited the purified GSTs (IC50 of 10 microM for H-69 and 12 microM for H-2496) from both lines in a competitive manner with similar Ki values (6.5 and 7.9 microM for the H-69 and H-2496 cell lines respectively). Cytotoxicity studies revealed that sulphasalazine increased the cytotoxicity of cisplatin towards both cell lines. Isobologram analysis showed that sulphasalazine synergistically enhanced the cytotoxicity of cisplatin towards both cell lines, the magnitude of synergy being remarkably higher in H-69 cells than in H-2496 cells. Our studies indicate that clinically achievable concentrations of sulphasalazine may be useful in modulating cisplatin resistance in malignancies with increased GST-pi content.
journal_name
Br J Cancerjournal_title
British journal of cancerauthors
Awasthi S,Sharma R,Singhal SS,Herzog NK,Chaubey M,Awasthi YCdoi
10.1038/bjc.1994.278subject
Has Abstractpub_date
1994-08-01 00:00:00pages
190-4issue
2eissn
0007-0920issn
1532-1827journal_volume
70pub_type
杂志文章abstract：:The diagnosis and follow-up of patients with bladder cancer rely on invasive procedures (cystoscopy with biopsy). Polymerase chain reaction (PCR)-based technologies may allow the sensitive detection of cancer-related genetic mutations in exfoliated tumour material, potentially allowing the development of less invasive...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1054/bjoc.1999.0890
更新日期：2000-01-01 00:00:00
abstract：:The prognostic value of C-reactive protein, compared with ECOG performance status (ECOG-ps), in patients receiving alpha-interferon treatment for advanced renal cancer was assessed in 58 patients. In all, 55 patients died on follow-up. On multivariate analysis with ECOG-ps and C-reactive protein entered as covariates,...
journal_title：British journal of cancer
pub_type： 临床试验,杂志文章
doi：10.1038/sj.bjc.6602152
更新日期：2004-10-04 00:00:00
abstract：:The hybrid cell line BH2 was derived by fusion between an AKR thymoma BW5147 (HGPRT-) and C57BL thymoma EL-4R (TK-). The hybrid cells showed a near-tetraploid modal number of chromosomes, in contrast to the near-diploid stem-lines of both parental cell populations; most of the BH2 hybrid cells acquired marker chromoso...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1981.255
更新日期：1981-11-01 00:00:00
abstract：:When assessing the value of a particular treatment, it is important to consider the impact it may have on the quality of life of those being treated. This is particularly so for cancer patients, whose life expectancy may be short. Patients with advanced colorectal cancer who participated in two international comparati...
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：10.1038/bjc.1998.420
更新日期：1998-01-01 00:00:00
abstract：BACKGROUND:In the coBRIM study, cobimetinib plus vemurafenib (C+V) significantly improved survival outcomes vs placebo and vemurafenib (P+V) in patients with advanced/metastatic BRAFV600-mutated melanoma. An analysis of health-related quality of life (HRQOL) from coBRIM is reported. METHODS:Patients completing the Eur...
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.2017.488
更新日期：2018-03-20 00:00:00
abstract：:In a meta-analysis of testicular cancer in twins, twins had a 30% increased risk (estimate 1.31, 95% CI 1.1-1.6), providing indirect support for the hypothesis that in utero hormone variations influence risk of testicular cancer. The summary-estimate for dizygotic twins was 1.3 (1.0-1.7) and for monozygotic or same se...
journal_title：British journal of cancer
pub_type： 杂志文章,meta分析
doi：10.1038/sj.bjc.6604136
更新日期：2008-01-15 00:00:00
abstract：:In a prospective cohort study, a close to two-fold elevated risk of bladder cancer was found among men reporting a history of gonorrhoea (relative risk=1.92, 95% CI=1.10-3.33). Our finding warrants further examination of the role of gonorrhoea in bladder carcinogenesis. ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6603510
更新日期：2007-01-15 00:00:00
abstract：BACKGROUND:The integrin-binding protein osteopontin is strongly associated with tumour development, yet is an abundant dietary component as a constituent of human and bovine milk. Therefore, we tested the effect of orally administered osteopontin (o-OPN) on the development of subcutaneous tumours in mice. METHODS:Bovi...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2014.10
更新日期：2014-03-04 00:00:00
abstract：:The reverse transcription polymerase chain reaction (RT-PCR) amplification of cytokeratin 20 (CK20) mRNA is considered a promising candidate method for the detection of circulating tumour cells in bone marrow and peripheral blood of cancer patients. In this study we have investigated the diagnostic specificity of the ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6690778
更新日期：1999-11-01 00:00:00
abstract：:In a prospective study we determined the frequency and causes of delay in the diagnosis of breast cancer after suspicious screening mammography. We included all women aged 50-75 years who underwent biennial screening mammography in the southern breast cancer screening region of the Netherlands between 1 January 1996 a...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6602158
更新日期：2004-11-15 00:00:00
abstract：:Complex biological pathways including angiogenesis, invasion, osteoclastic activation and bone matrix degradation are involved in the formation of bone metastasis (BM). The aim of our study was to investigate the cross-sectional and longitudinal associations of a panel of 12 serum biochemical markers reflecting biolog...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6603285
更新日期：2006-08-21 00:00:00
abstract：:The pharmacokinetics (PK) and pharmacodynamics (PD) of metronomic irinotecan have not been studied in cancer patients. The aim of the study is to investigate the PK/PD profile of irinotecan/SN-38 administered by metronomic schedule. Twenty chemotherapy-refractory or chemotherapy-resistant patients with metastatic colo...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6604311
更新日期：2008-04-22 00:00:00
abstract：:Resistance of tumour cells to methylating and monochloroethylating agents in vitro and in vivo has been linked to levels of the DNA repair protein O6-methylguanine-DNA methyltransferase (MGMT). In a clinical trial of temozolomide in advanced malignant melanoma, the relationship between pretreatment MGMT levels in biop...
journal_title：British journal of cancer
pub_type： 临床试验,杂志文章
doi：10.1038/bjc.1998.654
更新日期：1998-11-01 00:00:00
abstract：BACKGROUND:MSMB, a gene coding for beta-microseminoprotein, has been identified as a candidate susceptibility gene for prostate cancer (PrCa) in two genome-wide association studies (GWAS). SNP rs10993994 is 2 bp upstream of the transcription initiation site of MSMB and was identified as an associated PrCa risk variant....
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6605485
更新日期：2010-01-19 00:00:00
abstract：:The radiation response of Epstein-Barr virus (EBV)-immortalised lymphoblastoid cell lines derive from Li-Fraumeni syndrome (LFS) and LFS-like individuals was investigated. Cells from all LFS and LFS-like cases showed an accumulation of p53 protein following 137Cs gamma-irradiation, which was associated with cell cycle...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1996.424
更新日期：1996-09-01 00:00:00
abstract：BACKGROUND:Late effects of cisplatin-based chemotherapy in testicular cancer survivors (TCS) include cardiovascular morbidity, but little data is available beyond 20 years. The objective was to assess vascular damage in very long-term TCS. METHODS:TCS (treated with chemotherapy or orchiectomy only) and age-matched hea...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/s41416-020-01049-3
更新日期：2020-11-01 00:00:00
abstract：:Tumour necrosis factor (TNF) related apoptosis-inducing ligand (TRAIL/APO2L) is a recently identified member of the TNF family, which induces programmed cell death in a variety of neoplastic cell types, but not in most nonneoplastic cells. In this study, we report on the identification of two novel alternative splice ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6600772
更新日期：2003-03-24 00:00:00
abstract：:Oestrogen receptor protein (ER) was detected in 9 of 11 samples of malignant breast tissue and 8 of 9 samples of normal breast tissue. Levels of cytosolic ER (ERc) in malignant breast were 21-1102 fmol mg-1 soluble protein (Kd 1.8 X 10(-9)-3.1 X 10(-8) mol l-1) and those of nucleosolic ER (ERn), 13-526 fmol mg-1 solub...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1986.196
更新日期：1986-09-01 00:00:00
abstract：:Screen-detected (SD) breast cancers are smaller and biologically more indolent than clinically presenting cancers. An often debated question is: if left undiagnosed during their preclinical phase, would they become more aggressive or would they only increase in size? This study considered a registry-based series (1988...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6602289
更新日期：2005-01-17 00:00:00
abstract：:The death certificate only (DCO) index, which quantifies the proportion of patients for whom the death certificate provides the only notification to the registry, is a widely used measure of incompleteness of population-based cancer registration. This paper provides an algebraic assessment and a quantitative illustrat...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1995.363
更新日期：1995-08-01 00:00:00
abstract：:Hypoxic EMT-6 tumour cells displayed a high level of inducible nitric oxide synthase (iNOS) and an increased radiosensitivity after a 16 h exposure to lipopolysaccharide, a known activator of nuclear factor-kappaB (NF-kappaB). Both iNOS activation and radioresponse were impaired by the NF-kappaB inhibitors phenylarsin...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6600678
更新日期：2003-01-13 00:00:00
abstract：:Wnt genes are transforming to mouse breast epithelium and are hormonally regulated in vivo. To assess their role in another endocrine-responsive human cancer, the expression of seven Wnt genes (Wnt 2, 3, 4, 5a, 7a, 7b and 10b) in normal human endometrium and endometrial cells, and endometrial carcinoma tissues and cel...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1997.195
更新日期：1997-01-01 00:00:00
abstract：BACKGROUND:Glomerular filtration rate (GFR) is used in the calculation of carboplatin dose. Glomerular filtration rate is measured using a radioisotope method (radionuclide GFR (rGFR)), however, estimation equations are available (estimated GFR (eGFR)). Our aim was to assess the accuracy of three eGFR equations and the...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2012.393
更新日期：2012-10-09 00:00:00
abstract：:The structural characteristics of mesoionic compounds, which contain distinct regions of positive and negative charges associated with a poly-heteroatomic system, enable them to cross cellular membranes and interact strongly with biomolecules. Potential biological applications have been described for mesoionic compoun...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6601946
更新日期：2004-07-19 00:00:00
abstract：BACKGROUND:Administration of interleukin-2 (IL-2) has shown some effects on malignant pleural mesothelioma (MPM) tumour regression. The purpose of this study was to investigate the ability of IL-2 to modify immunological effector cells and angiogenesis in MPM patients and their prognostic value. METHODS:Tumour-infiltr...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6605438
更新日期：2009-12-01 00:00:00
abstract：:Leukaemia L 1210 cells preincubated in vitro with neuraminidase preparations derived either from Vibrio cholerae (VCN) or Clostridium perfringens (CPN) lost their i.p. transplantability for normal DBA/2 mice. This loss of transplantability could not be observed when the enzyme treated cells were implanted in mice whos...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1973.14
更新日期：1973-02-01 00:00:00
abstract：:A registry including information about nearly 1,600 cases of retinoblastoma diagnosed in Britain has been created at the Childhood Cancer Research Group. Cases have been classified as 'old germ cell mutation', 'new germ cell mutation' or 'sporadic non-hereditary'. For a population-based group of 918 cases diagnosed be...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1992.244
更新日期：1992-07-01 00:00:00
abstract：BACKGROUND:Detection of metastatic spread of head and neck cancer to cervical lymph nodes is essential for optimal design of therapy. Undetected metastases lead to mortality, which can be prevented by better detection methods. METHODS:We analysed 41 lymph nodes from 19 patients with oral squamous cell carcinoma (OSCC)...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2017.408
更新日期：2018-02-06 00:00:00
abstract：BACKGROUND:We performed a retrospective nationwide study to explore age as a prognostic factor in synovial sarcoma patients. METHODS:Data on 613 synovial sarcoma patients were obtained from the Netherlands Cancer Registry. The prognostic relevance of age groups (children, adolescent and young adults (AYAs), adults, an...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2015.375
更新日期：2015-12-01 00:00:00
abstract：:Recent evidence has demonstrated that endothelial-to-mesenchymal transition (EndMT) may have a significant role in a number of diseases. Although EndMT has been previously studied as a critical process in heart development, it is now clear that EndMT can also occur postnatally in various pathologic settings, including...
journal_title：British journal of cancer
pub_type： 杂志文章,评审
doi：10.1038/sj.bjc.6604662
更新日期：2008-11-04 00:00:00
