Abstract：
:Previous studies have shown that multidrug resistance (MDR) in the doxorubicin-selected lung tumour cell lines COR-L23/R, GLC4/ADR and MOR/R is associated with overexpression of the MRP gene. In this study we report that resistance to daunorubicin, vincristine and rhodamine 123 can be partially reversed in these cell lines by exposing the cells to buthionine sulphoximine (BSO), an inhibitor of glutathione (GSH) synthesis. This effect of BSO on drug resistance was associated with an increased intracellular accumulation of daunorubicin and rhodamine 123, owing to inhibition of the enhanced drug efflux. In contrast, the accumulation of daunorubicin was not increased by BSO treatment in a P-glycoprotein (P-gp)-mediated MDR cell line. BSO treatment (25 microM, 20 h) of the cell lines resulted in 60-80% depletion of cellular GSH levels. The effects of BSO on daunorubicin accumulation in the COR-L23/R and GLC4/ADR cells were associated with cellular GSH depletion. In addition, increase of cellular GSH levels in BSO-treated COR-L23/R and GLC4/ADR cells as a result of incubation with 5 mM GSH ethyl ester restored the accumulation deficit of daunorubicin. However, the transport of daunorubicin did not increase the GSH release in any of the cell lines. These results demonstrate that drug transport in MRP- but not in P-gp-overexpressing MDR tumour cell lines can be regulated by intracellular GSH levels.
journal_name
Br J Cancerjournal_title
British journal of cancerauthors
Versantvoort CH,Broxterman HJ,Bagrij T,Scheper RJ,Twentyman PRdoi
10.1038/bjc.1995.281subject
Has Abstractpub_date
1995-07-01 00:00:00pages
82-9issue
1eissn
0007-0920issn
1532-1827journal_volume
72pub_type
杂志文章abstract：:Multicellular tumour spheroids are cellular aggregates that can be prepared from many types of tumour cells. These three-dimensional structures provide a model for analysing the effects of cell-cell contact and intercellular microenvironments on phenomena such as autocrine regulation of growth factor synthesis. Autore...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1992.34
更新日期：1992-02-01 00:00:00
abstract：BACKGROUND:Current standards for assessment of tumour response to therapy (a) categorise therapeutic efficacy values, inappropriate for patient-specific and deterministic studies, (b) neglect the natural growth characteristics of tumours, (c) are based on tumour shrinkage, inappropriate for cytostatic therapies, and (d...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2011.276
更新日期：2011-08-23 00:00:00
abstract：BACKGROUND:Stromal-tumour interactions facilitate pancreatic cancer (PC) progression. The hepatocyte growth factor (HGF)/c-MET pathway is upregulated in PC and mediates the interaction between cancer cells and stromal pancreatic stellate cells (PSCs). This study assessed the effect of HGF/c-MET inhibition plus gemcitab...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/s41416-020-0782-1
更新日期：2020-05-01 00:00:00
abstract：:We screened 145 HIV-infected non-pregnant women at a tertiary care centre in Lusaka, Zambia. Liquid-based cytology and human papillomavirus (HPV) genotyping with PGMY09/11 biotinylated primers (Roche Linear Array HPV genotyping test) maximised sensitivity of cytology and HPV assessments. Among high-risk (HR) types, HP...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6603737
更新日期：2007-05-07 00:00:00
abstract：:In a study of 157 patients with lymphoid malignancy, the phenotype of the tumour cells was correlated with the histological classification of the tumour using the Rappaport and the Kiel classifications. The markers used included E, Fc gamma, Fc micron (IgM) and C3d rosetting, estimation of SIg and CyIg, and tests for ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1979.137
更新日期：1979-07-01 00:00:00
abstract：:To evaluate the impact of prior adjuvant chemotherapy on response rate (RR), progression-free (PFS) and overall survival (OS) of metastatic breast cancer patients treated with epirubicin/paclitaxel (ET) regimens. In all, 291 patients enrolled in five studies in metastatic breast cancer were analysed: 101 (35%) were ch...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6601634
更新日期：2004-03-08 00:00:00
abstract：:To design hybrid tumour necrosis factor-alpha (TNF-alpha) applicable to systemic anti-tumour therapeutic use, we assessed the relationships among the molecular size of hybrid TNF-alpha, in vitro bioactivity and in vivo anti-tumour potency. Natural human TNF-alpha was covalently modified with polyethylene glycol (PEG) ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1996.495
更新日期：1996-10-01 00:00:00
abstract：:Between 1946 and 1976 over 9,000 women with breast cancer were seen within one year of diagnosis at the A. Maxwell Evans Clinic (AMEC) in Vancouver, British Columbia. By 1978, 275 had a subsequent diagnosis of a second primary in the contralateral breast: 100 were diagnosed within 1 year, and 175 after 1 year of the f...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1984.12
更新日期：1984-01-01 00:00:00
abstract：:Fifty-two previously untreated patients with advanced non-small-cell lung cancer (NSCLC) were treated on a 14 day cycle with cisplatin (60 mg m-2 i.v.) and vindesine (3 mg m-2 i.v.) on day 1, followed by a 3 day continuous infusion of 5-fluorouracil (800 mg m-2 day-1) starting on day 8. An overall response rate of 40....
journal_title：British journal of cancer
pub_type： 临床试验,杂志文章
doi：10.1038/bjc.1996.211
更新日期：1996-05-01 00:00:00
abstract：BACKGROUND:Uterine serous papillary carcinoma (USPC) is a biologically aggressive variant of endometrial cancer. We investigated the expression of Serum Amyloid A (SAA) and evaluated its potential as a serum biomarker in USPC patients. METHODS:SAA gene and protein expression levels were evaluated in USPC and normal en...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6605129
更新日期：2009-07-21 00:00:00
abstract：BACKGROUND:Cabazitaxel is approved for treatment of castration-resistant metastatic prostate cancer. The current dosing strategy of cabazitaxel is based on body surface area (BSA). Body surface area is known as a poor predictor for total systemic exposure to drugs, since it does not take into account variability in act...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2017.91
更新日期：2017-05-09 00:00:00
abstract：:NIH3T3 cells transfected with c-H-ras and/or c-myc genes were examined for differences in drug sensitivity. The five transfectants used were N8, NIH3T3-nm-1, pT22-3-nm-2, pP1-4 and pT22-3. They were transfected with pKOneo alone, pKOneo and c-myc, pKOneo and c-myc plus activated c-H-ras, normal c-H-ras and activated c...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1991.56
更新日期：1991-02-01 00:00:00
abstract：:In locally advanced undifferentiated nasopharyngeal carcinoma (UNPC), concomitant chemo-radiotherapy is the only strategy that gave better results over radiation alone in a phase III trial. Adding effective chemotherapy to a concomitant chemo-radiotherapy programme may be a way to improve the results further. 30 patie...
journal_title：British journal of cancer
pub_type： 临床试验,杂志文章
doi：10.1054/bjoc.2000.1485
更新日期：2000-12-01 00:00:00
abstract：:The cisplatin analogue 1R,2R-diaminocyclohexane(trans-diacetato)(dichloro)platinum(IV) (DAP) is a DNA-damaging agent that will be entering clinical trials for its potent cytotoxic effects against cisplatin-resistant tumour cells. This cytotoxicity may reside in its ability to selectively activate G1-phase checkpoint r...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6603448
更新日期：2006-12-04 00:00:00
abstract：:Chemotherapy during a viable pregnancy may be associated with adverse perinatal outcomes. We conducted a prospective cohort study to examine the perinatal outcomes of babies born following in utero exposure to chemotherapy in Australia and New Zealand. Over 18 months we identified 24 births, of >400 g and/or >20-weeks...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/s41416-019-0563-x
更新日期：2019-10-01 00:00:00
abstract：:To test the anti-tumour activity of rhizoxin in recurrent and/or metastatic squamous cell head and neck cancer, we performed a phase II study. Eligibility required histologically proven squamous cell head and neck cancer. Patients could only have received one prior chemotherapy. Patients were entered if WHO PS was < o...
journal_title：British journal of cancer
pub_type： 临床试验,杂志文章,多中心研究
doi：10.1038/bjc.1996.69
更新日期：1996-02-01 00:00:00
abstract：:Eighty-nine fresh tissue samples from flat colonic mucosa, polypoid lesions, macroscopically evident carcinomas, and metastatic carcinomas from ten patients with longstanding ulcerative colitis (greater than or equal to 8 years duration) were analysed by DNA flow cytometry and light microscopy. Of a total of ten carci...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1991.302
更新日期：1991-08-01 00:00:00
abstract：BACKGROUND:The prognostic and predictive value of multiple serum biomarkers was evaluated using samples from a randomised phase III study (HORIZON II) investigating chemotherapy with or without cediranib in metastatic colorectal cancer (mCRC). METHODS:Baseline levels of 207 protein markers were measured in serum sampl...
journal_title：British journal of cancer
pub_type： 杂志文章,随机对照试验
doi：10.1038/bjc.2013.649
更新日期：2013-11-26 00:00:00
abstract：:Endosialin is a transmembrane glycoprotein selectively expressed in blood vessels and stromal fibroblasts of various human tumours. It has been functionally implicated in angiogenesis, but the factors that control its expression have remained unclear. As insufficient delivery of oxygen is a driving force of angiogenes...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6604685
更新日期：2008-10-21 00:00:00
abstract：:Mechanisms of resistance to Tomudex include increased thymidylate synthase activity, as well as reduced intracellular drug uptake and polyglutamation. However, little is known about other mechanisms of resistance, such as a possible protection against Tomudex-induced apoptosis mediated by bcl-2. We transfected the MDA...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6690685
更新日期：1999-09-01 00:00:00
abstract：BACKGROUND:This study aimed to evaluate the prognostic value of pre-treatment NLR in patients with oropharyngeal cancer. METHODS:Patients who completed definitive radiotherapy (RT) for oropharyngeal cancer and had blood counts taken pre-RT from 2002 to 2013 were included. NLR was calculated as total neutrophil/lymphoc...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/s41416-020-01106-x
更新日期：2020-10-14 00:00:00
abstract：BACKGROUND:Ovarian cancer is frequently advanced at presentation when treatment is rarely curative. Response to first-line platinum-based chemotherapy significantly influences survival, but clinical response is unpredictable and is frequently limited by the development of drug-resistant disease. METHODS:We used qRT-PC...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2012.410
更新日期：2012-10-09 00:00:00
abstract：:Solid tumours are often highly acidic compared to normal tissue, and tumour extracellular acidosis contributes to multiple aspects of cancer progression. Now, Anemone et al. in this issue of the British Journal of Cancer provide in vivo evidence that the degree to which various breast cancer cell lines acidify their e...
journal_title：British journal of cancer
pub_type： 社论
doi：10.1038/s41416-020-01171-2
更新日期：2021-01-01 00:00:00
abstract：:Adenosine deaminase (EC 3.5.4.4, ADA) has been assayed in lymphocytes, granulocytes and erythrocytes from 45 patients with haematological malignancies. Activities were uniformly low in lymphocytes from patients with chronic lymphocytic leukaemia. Variable, but abnormal activities were frequently found in multiple myel...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.1976.45
更新日期：1976-03-01 00:00:00
abstract：BACKGROUND:There are currently two million cancer survivors in the United Kingdom, and in recent years this number has grown by 3% per annum. The aim of this paper is to provide long-term projections of cancer prevalence in the United Kingdom. METHODS:National cancer registry data for England were used to estimate can...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2012.366
更新日期：2012-09-25 00:00:00
abstract：:Imaging has an essential role in the planning and delivery of radiotherapy. Recent advances in imaging have led to the development of advanced radiotherapy techniques-including image-guided radiotherapy, intensity-modulated radiotherapy, stereotactic body radiotherapy and proton beam therapy. The optimal use of imagin...
journal_title：British journal of cancer
pub_type： 杂志文章,评审
doi：10.1038/s41416-019-0412-y
更新日期：2019-04-01 00:00:00
abstract：BACKGROUND:Prevalence of (pre)cancerous colorectal lesions are higher in men than in women, although transition rates from advanced lesions to cancer is similar in both sexes. Our aim was to investigate whether the sex-specific difference in incidence of premalignant colorectal lesions might be explained by the impact ...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2016.324
更新日期：2016-11-22 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：:The aims of this study were to identify prognostic variables for toxicity and survival in patients with cancer participating in phase I clinical trials and compare characteristics of those treated with cytotoxic chemotherapy (CT) and non-cytotoxic drugs (non-CT). Data were collected from 420 (114 CT, 306 non-CT) patie...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/sj.bjc.6601218
更新日期：2003-10-06 00:00:00
abstract：BACKGROUND:Melanoma is highly resistant to current modalities of therapy, with the extent of pigmentation playing an important role in therapeutic resistance. Nuclear factor-κB (NF-κB) is constitutively activated in melanoma and can serve as a molecular target for cancer therapy and steroid/secosteroid action. METHODS...
journal_title：British journal of cancer
pub_type： 杂志文章
doi：10.1038/bjc.2011.458
更新日期：2011-12-06 00:00:00
