Abstract:
:This study was undertaken to investigate the intracellular induction of reactive oxygen species (ROS) by cis-dichlorodiammineplatinum (CDDP) and the augmentation of their cytotoxicity in bladder cancer cells (KU7) by enhancement of ROS generation by the glutathione (GSH) depletors buthionine sulphoximine (BSO) and diethylmaleate (DEM). CDDP-induced cytotoxicity in KU7 cells and its modulation by GSH depletors were determined using spectrophotometric measurement with crystal violet staining. The effects of GSH depletors on intracellular GSH levels were confirmed using the GSH reductase-DTNB recycling method. Intracellular ROS generation induced by CDDP with or without GSH depletors was estimated from the amount of intracellular dichlorofluorescein (DCF), an oxidized product of dichlorofluorescein (DCFH), which was measured with an anchored cell analysis and sorting system. The cytotoxic effects of CDDP (IC50 15.0 +/- 2.5 microM) were significantly enhanced by BSO (IC50 9.3 +/- 2.6 microM, P < 0.01) and DEM (IC50 10.3 +/- 0.3 microM, P <0.01). BSO and DEM produced a significant depletion in intracellular GSH levels (9.6 +/- 0.4 nmol 10(-6) cells, 17.9 +/- 1.0 nmol 10(-6) cells) compared with the controls (30.5 +/- 0.6 nmol 10(-6) cells). Intracellular DCF production in KU7 cells treated with CDDP (1.35 +/- 0.33 microM) was significantly enhanced by the addition of BSO (4.43 +/- 0.33 microM) or DEM (3.12 +/- 0.22 microM) at 150 min. These results suggest that ROS may play a substantial role in CDDP-induced cytotoxicity and that GSH depletors augment its cytotoxicity through an enhancement of ROS generation in bladder cancer cells.
journal_name
Br J Cancerjournal_title
British journal of cancerauthors
Miyajima A,Nakashima J,Yoshioka K,Tachibana M,Tazaki H,Murai Mdoi
10.1038/bjc.1997.363subject
Has Abstractpub_date
1997-01-01 00:00:00pages
206-10issue
2eissn
0007-0920issn
1532-1827journal_volume
76pub_type
杂志文章abstract::Patients with recurrent or refractory head and neck squamous cell carcinoma received cisplatin/epinephrine injectable gel or placebo gel injected directly into the clinically dominant tumour. The double-blind phase III trial comprised of up to 6 weekly treatments over 8 weeks, 4 weekly evaluation visits, and then mont...
journal_title:British journal of cancer
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1038/sj.bjc.6600588
更新日期:2002-10-21 00:00:00
abstract::Overexpression of the MDR1 product, P-glycoprotein (Pgp), has been shown to be one of the mechanisms underlying the development of multidrug resistance (MDR). Recently, one mutant p53 has been shown to stimulate the MDR1 gene promoter in vitro, whereas wild-type p53 repressed this activity. We measured Pgp and p53 exp...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1995.329
更新日期:1995-08-01 00:00:00
abstract::Clear cell sarcoma of tendons and aponeuroses (malignant melanoma of soft parts) and conventional malignant melanoma may demonstrate significant morphologic overlap at the light microscopic and ultrastructural level. Consequently, the clinically relevant distinction between primary clear cell sarcoma and metastatic me...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1054/bjoc.2000.1628
更新日期:2001-02-01 00:00:00
abstract:BACKGROUND:Circulating total cytokeratin 18 (tCK18) and/or caspase cleaved cytokeratin 18 (cCK18) (measured by M65 and M30 enzyme-linked immunosorbent assays (ELISAs), respectively) are used as pharmacodynamic (PD) biomarkers of epithelial cell death in clinical trials. Having validated these ELISAs, we assessed their ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2012.416
更新日期:2012-10-23 00:00:00
abstract::Germline mutations in the LKB1 (STK11) gene (chromosome sub-band 19p13.3) cause characteristic hamartomas and pigmentation to develop in patients with Peutz-Jeghers syndrome. Peutz-Jeghers syndrome carries an overall risk of cancer that may be up to 20 times that of the general population and Peutz-Jeghers patients ar...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6690323
更新日期:1999-04-01 00:00:00
abstract:BACKGROUND:Emerging studies have shown the potential benefit of arming oncolytic viruses with therapeutic genes. However, most of these therapeutic genes are placed under the regulation of ubiquitous viral promoters. Our goal is to generate a safer yet potent oncolytic herpes simplex virus type-1 (HSV-1) for cancer the...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2013.692
更新日期:2014-01-07 00:00:00
abstract::Smoking, nutrition, parity and oral contraceptive use have been reported as major environmental risk factors for cervical cancer. After the discovery of the very strong link between human papillomavirus (HPV) infection and cervical cancer, it is unclear whether the association of these environmental factors with cervi...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1054/bjoc.1999.1100
更新日期:2000-04-01 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:BACKGROUND:The pathogenesis of lymph node metastases in preinvasive breast cancer – ductal carcinoma in situ (DCIS) – remains controversial. The one-step nucleic acid amplification (OSNA) assay is a novel molecular method that can assess a whole node and detect clinically relevant metastases. In this retrospective coho...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2012.168
更新日期:2012-05-08 00:00:00
abstract:BACKGROUND:Most lung cancer patients are diagnosed at an advanced disease stage and predominantly receive palliative treatment, which increasingly consists of several chemotherapy lines. We report on patients' quality of life (QOL) to gain knowledge on QOL during and across multiple lines of chemotherapy. This includes...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2013.585
更新日期:2013-10-29 00:00:00
abstract::Large-scale genomic analyses of cutaneous melanoma have revealed insights into the aetiology and heterogeneity of this disease, as well as opportunities to further personalise treatment for patients with targeted and immune therapies. Herein, we review the proposed genomic classification of cutaneous melanoma from lar...
journal_title:British journal of cancer
pub_type: 杂志文章,评审
doi:10.1038/bjc.2016.195
更新日期:2016-07-12 00:00:00
abstract:BACKGROUND:The lipogenic transcription factor carbohydrate response element-binding protein (ChREBP) may play a key role in malignant progression of breast cancer by allowing metabolic adaptations to take place in response to changes in oxygenation. METHODS:Immunohistochemical analysis of ChREBP was carried out in hum...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2013.765
更新日期:2014-02-04 00:00:00
abstract::Eleven patients suffering from intra-abdominal malignancy were treated with various doses of intraperitoneal mitomycin C adsorbed onto activated carbon particles. Seven of the patients underwent resection of their primary gastric tumour and all developed potentially life-threatening severe complications that proved to...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1997.615
更新日期:1997-01-01 00:00:00
abstract::A case-control study of lung cancer involving interviews with 965 female patients and 959 controls in Shenyang and Harbin, two industrial cities which have among the highest rates of lung cancer in China, revealed that cigarette smoking is the main causal factor and accounted for about 35% of the tumours among women. ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1990.421
更新日期:1990-12-01 00:00:00
abstract::The testis is the third common site of relapse after primary treatment of childhood acute lymphoblastic leukaemia, but in adults relatively few testicular relapses of acute lymphoblastic leukaemia have been reported. In the present investigation the differences in the behaviour of leukaemia in immature and mature rat ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1993.166
更新日期:1993-05-01 00:00:00
abstract::We investigated breast cancer incidence in migrants in the Netherlands in 1988-1998. The standardised incidence ratio for breast cancer in Northwest-Netherlands was statistically significantly reduced for women born in Surinam (0.56), Turkey (0.29) and Morocco (0.22). The proportion of women with advanced stages (III ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6601821
更新日期:2004-06-01 00:00:00
abstract::Clonal subpopulations of different ploidy values and metastatic capacities, isolated from the RIF-1 mouse sarcoma, have been tested for in vitro X-radiation sensitivity, for in vitro sensitivity to adriamycin and for in vitro and in vivo sensitivity to melphalan and CCNU. Following X-radiation, no consistent differenc...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1983.139
更新日期:1983-06-01 00:00:00
abstract:BACKGROUND:Among patients with cancer, prior research suggests that patients with mental illness may have reduced survival. The objective was to assess the impact of psychiatric utilisation (PU) prior to cancer diagnosis on survival outcomes. METHODS:All residents of Ontario diagnosed with one of the top 10 malignanci...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/s41416-019-0390-0
更新日期:2019-04-01 00:00:00
abstract:BACKGROUND:The role of melanoma inhibitory activity 2 (MIA2) was examined in human oral squamous cell carcinoma (OSCC). METHODS:MIA2 role was examined by immunohistochemistry of human OSCCs and knockdown studies using human 3 OSCC cell lines with MIA2 expression. RESULTS:MIA2 expression was observed in 62 (66.7%) of ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2013.27
更新日期:2013-04-16 00:00:00
abstract::Natural human interferon beta (beta-IFN) was tested during the early phase of in vitro infection with HTLV-I virus of human cord blood mononuclear cells (CBL), to evaluate whether its antiviral and immunomodulating effects might prevent spreading of infection in the host. beta-IFN was found to reduce HTLV-I transmissi...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.1988.111
更新日期:1988-05-01 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::HER2 / neu is a potential antigen candidate for immunotherapy because of its correlation to a poor prognosis and high expressions in many kinds of epithelial tumours. Especially in the colorectal carcinomas, the higher expression of HER2 / neu is recognized in metastatic regions as well as in primary sites. Several CT...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1054/bjoc.2000.1547
更新日期:2001-01-05 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::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::Advanced or metastatic disease is common in both oesophagogastric and colorectal cancers, with poor 5-year survival despite palliative chemotherapy. We have investigated the sensitivity of gastrointestinal tumours to gemcitabine in combination with mitomycin C (GeM), using a modified ex vivo ATP-based tumour chemosens...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6601403
更新日期:2003-12-15 00:00:00
abstract::This paper illustrates the efficacy of DNA vaccination through electroporation in the prevention of oral transplantable carcinoma in Syrian hamsters. At 21 and 7 days before tumour challenge, 19 hamsters were vaccinated with plasmids coding for the extracellular and transmembrane domains of rat HER-2 receptor (EC-TM p...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6602853
更新日期:2005-11-28 00:00:00
abstract::In order to elucidate the clinical significance of the erbB family, epidermal growth factor receptor (EGF-R), c-erbB-2, c-erbB-3 and c-erbB-4 in hepatocellular carcinoma (HCC), we investigated the expression of these proteins by means of immunohistochemistry for HCC as well as adjacent noncancerous lesions. EGF-R was ...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1054/bjoc.2000.1580
更新日期:2001-05-18 00:00:00
abstract::The aim of this study was to assess the prognostic value of pretreatment clinical and laboratory parameters in refractory or relapsed multiple myeloma (MM) patients who have a long-term response to thalidomide (THAL), lasting at least 18 months. The study was carried out on 234 patients who received THAL for relapsed/...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6602225
更新日期:2004-11-29 00:00:00
abstract::The objective of this study was to prospectively measure peri-diagnostic and surgical time intervals for patients with suspected colorectal, lung, or prostate cancer. Prospective eligible patients were referred to a regional hospital in Ottawa, Canada between February 2004 and February 2005 for diagnostic assessment o...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/sj.bjc.6604819
更新日期:2009-01-13 00:00:00
abstract:BACKGROUND:We performed a cross-sectional study in Indonesia to evaluate the performance of a single-visit approach of cervical cancer screening, using visual inspection with acetic acid (VIA), histology and cryotherapy in low-resource settings. METHODS:Women having limited access to health-care facilities were screen...
journal_title:British journal of cancer
pub_type: 杂志文章
doi:10.1038/bjc.2012.334
更新日期:2012-08-21 00:00:00