Abstract:
:Resistance to cytotoxic chemotherapy is a major problem in the management of patients with metastatic breast cancer. Various data suggest P-glycoprotein-associated multidrug resistance (MDR) to be a relevant resistance mechanism in this tumor. The purpose of this study was to evaluate feasibility and activity of combining oral dexverapamil, a second-generation chemosensitizer currently in clinical development for MDR reversal, with epirubicin in patients with epirubicin-refractory high-risk metastatic breast cancer. Patients first received epirubicin alone at 120 mg/m2. In cases of clinical refractoriness, epirubicin was continued at the same dose and schedule but supplemented with oral dexverapamil. Dexverapamil was given at 300 mg every 6 h for a total of 13 doses and commenced 2 days prior to epirubicin administration. At the time of this interim analysis, 41 patients had received epirubicin alone and 20 proceeded to treatment with epirubicin plus dexverapamil. Of the 20 patients, 14 were considered evaluable for toxicity and activity. Addition of dexverapamil resulted in a significant decrease in mean heart rate and blood pressure as well as prolongation of PQ time as compared to epirubicin alone. However, these cardiovascular effects of dexverapamil were usually mild, and subjective tolerance of treatment was good. In 7/14 patients, dose escalation of dexverapamil was feasible. Dexverapamil had no effect on epirubicin toxicities and did not require reduction of the epirubicin dose. In 2/14 patients, the addition of dexverapamil to epirubicin was able to convert progressive disease and no changes respectively, into partial responses. In 3 patients with progressive disease, addition of dexverapamil temporarily prevented further tumor progression. Analyses of dexverapamil and nor-dexverapamil plasma levels, of in vitro reversal activity of patient sera containing dexverapamil, and of epirubicin pharmacokinetics without and with dexverapamil are currently in progress. Addition of oral dexverapamil to epirubicin 120 mg/m2 proved to be feasible in a multiinstitutional setting. Patient accrual is continuing to determine whether dexverapamil is capable of overcoming epirubicin refractoriness in a significant number of patients with metastatic breast cancer.
journal_name
J Cancer Res Clin Oncoljournal_title
Journal of cancer research and clinical oncologyauthors
Thürlimann B,Kröger N,Greiner J,Mross K,Schüller J,Schernhammer E,Schumacher K,Gastl G,Hartlapp J,Kupper Hdoi
10.1007/BF02351063subject
Has Abstract,Author List Incompletepub_date
1995-01-01 00:00:00pages
R3-6eissn
0171-5216issn
1432-1335journal_volume
121 Suppl 3pub_type
临床试验,杂志文章,多中心研究abstract:PURPOSE:The incidence and mortality of gastric and colorectal cancers are among the highest malignant tumors in China. The aim of this study is to investigate whether variations of the human oxoguanine glycosylase 1 (hOGG1) gene are related to the risk of gastric and colorectal cancers in the Chinese population. METHO...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s00432-011-1022-0
更新日期:2011-10-01 00:00:00
abstract:PURPOSE:The growth pattern of peripheral squamous cell carcinoma (SCC) of the lung is divided into two types: alveolar space-filling (ASF) growth and alveolar space-destructive (ASD) growth. The aim of this study was to investigate the clinicopathological differences between cancer cells displaying ASF and ASD growth. ...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s00432-019-02937-9
更新日期:2019-07-01 00:00:00
abstract:PURPOSE:Interferon alpha (IFNalpha) has been used in the immunotherapy of renal cell carcinoma (RCC), but the various mechanisms of its antiproliferative effects are poorly understood. Recent evidence suggests that IFNalpha is involved in the up-regulation of multidrug resistance (MDR) gene expression, and that the MDR...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s004320050252
更新日期:1999-01-01 00:00:00
abstract::In view of the great variation in the size of epithelial cell nuclei in benign changes in the mammary gland, the cytologist is often faced with diagnostic difficulties. Clear differences in the size of the nuclei in aspiration biopsies from the mammary glands of pregnant women and those from the mammary glands of post...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/BF00390363
更新日期:1985-01-01 00:00:00
abstract::Human ovarian cancer cells from ten patients were cultured in the agar double layer assay as described by Hamburger and Salmon and in a methylcellulose monolayer system. The assays were compared under the same experimental conditions. The rate of positives (defined as greater than 30 colonies/dish) was 75% in the meth...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/BF00402502
更新日期:1985-01-01 00:00:00
abstract::Coumarin (1,2-benzopyrone) is a natural substance that has shown antitumor activity in vivo. The major human metabolite of coumarin, 7-hydroxycoumarin (7-HC), is the active form of the drug. While the exact mechanism(s) of action of coumarin is unknown, it has been shown previously that this drug possesses immunomodul...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/BF01377114
更新日期:1994-01-01 00:00:00
abstract:PURPOSE:The orphan, membrane-bound estrogen receptor (GPER) is expressed at high levels in a large fraction of breast cancer patients, and its expression is favorable for patients' survival. We investigated the role of GPER as a potential tumor suppressor in MCF-7 and SK-BR-3 breast cancer cells. METHODS:The effect of...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s00432-014-1598-2
更新日期:2014-04-01 00:00:00
abstract:INTRODUCTION:Protein profiles of endoscopically collected pancreatic juice from normal, chronic pancreatitis patients and pancreatic cancer patients were compared to identify diagnostic biomarkers of pancreatic cancer. METHODS:Secretin was injected intravenously and pancreatic juice was collected via selective cannula...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s00432-011-0992-2
更新日期:2011-08-01 00:00:00
abstract::The aim of the present studies was to elucidate the effects and optimal modulatory conditions of 5-ethyl-2'-deoxyuridine (EtdUrd) on the antitumour efficacy, pharmacokinetics and catabolism of 5-fluorouracil (5-FU) on Colon-26 and Colon-38 murine tumours. HPLC and GC-MS techniques were used to measure the concentratio...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s004320050333
更新日期:1999-12-01 00:00:00
abstract:PURPOSE:To evaluate the efficacy and safety of a novel low dose chemotherapy as a remission induction regimen for elderly de novo AML patients ineligible for intensive chemotherapy. METHOD:Fifty consecutive patients, aged 60 to 85, with untreated de novo AML were enrolled. Patients with poor PS or defined non-hematolo...
journal_title:Journal of cancer research and clinical oncology
pub_type: 临床试验,杂志文章
doi:10.1007/s00432-007-0203-3
更新日期:2007-08-01 00:00:00
abstract:PURPOSE:Clinical trials have reported conflicting results as to whether taxane-based doublet improves outcome over single-agent taxane in patients with advanced breast cancer. METHODS:We performed a meta-analysis comparing primary and secondary end points of taxane-based doublet with single-agent taxane chemotherapy i...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章,meta分析
doi:10.1007/s00432-010-0967-8
更新日期:2011-06-01 00:00:00
abstract::Radiation chimeras with trisomy 19 hematopoietic cells were constructed to test the sensitivity of the trisomic hematopoietic system to infection with Rauscher leukemia virus: Hematopoietic cells from livers of trisomic fetuses were rescued by transplantation into lethally irradiated adult mice. These Ts 19 radiation ...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/BF00391884
更新日期:1985-01-01 00:00:00
abstract::The study shows inhibition of the antitumor effect of cyclophosphamide (CPA) on mammary carcinomas growing in mice prior-immunized by intragastric inoculations of the tumor. Immunization with tumor cells through this route produces under certain conditions factors able to modulate the antigenic determinants on tumor c...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/BF00411282
更新日期:1980-01-01 00:00:00
abstract::The precise place of local estrogen production in mammary cancer is still controversial. In this investigation localization of aromatase (the key enzyme of estrogen biosynthesis) was studied in breast cancer tissue by immunohistochemical method using polyclonal rabbit antibodies. The cytoplasmic staining was found in ...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/BF01187162
更新日期:1996-01-01 00:00:00
abstract::To study whether fluorescent lighting at work might increase carcinogenesis, hairless mice were exposed to a bank of six 36 W standard fluorescent lamps (neutral-white) every workday for 8 h at an illuminance level of 1,000 lx. For comparison, other mice were exposed to UVB radiation or to simulated solar radiation. I...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/BF00404397
更新日期:1986-01-01 00:00:00
abstract::The nuclear DNA content (DNA ploidy) level was determined in a series of 83 human brain metastases, for which 35 complete clinical follow-ups were available. The DNA ploidy level determination was carried out by means of DNA histogram types. The results show that certain brain metastases were diploid, while others exh...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/BF01226271
更新日期:1996-01-01 00:00:00
abstract::Second-line intraperitoneal (i.p.) therapy has been demonstrated to result in surgically defined complete responses (S-CR) in 25%-40% of patients with small-volume residual ovarian cancer (microscopic disease or largest tumor mass less than 1 cm in diameter). To evaluate the influence of the surgical finding of diffus...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/BF01410140
更新日期:1992-01-01 00:00:00
abstract:PURPOSE:The proto-oncogene forkhead box M1 (FOXM1) is associated with poor survival in many cancers. The impact of FOXM1 expression on progression-free survival (PFS) of non-muscle invasive bladder cancer (NMIBC) has not yet been investigated. The differential expression of FOXM1 between the different molecular NMIBC s...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s00432-018-2694-5
更新日期:2018-09-01 00:00:00
abstract::The purpose of this phase II study was to evaluate the therapeutic efficacy and toxicity of a tandem or triple high-dose chemotherapy (HDC) with autologous peripheral blood stem cell transplantation (PBSCT) in patients with metastatic breast cancer (MBC) as first line chemotherapy. Conventional chemotherapy consisted ...
journal_title:Journal of cancer research and clinical oncology
pub_type: 临床试验,杂志文章
doi:10.1007/s004320050233
更新日期:1998-01-01 00:00:00
abstract::Soft-agar clonogenicity of L1210 mouse leukemia cells and of xenografts of a human melanoma and a carcinoma of the cervix was studied sectionally by the sizes of the colonies grown under hypoxic gradients and aerobic condition. Soft-agar plating efficiency was increased in cultured L1210 cells with decreasing oxygen c...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/BF00402464
更新日期:1984-01-01 00:00:00
abstract:PURPOSE:This study aimed to establish new criteria for limited resection of non-small cell lung cancer (NSCLC) based on computed tomography findings and maximum standardized uptake value (SUVmax). METHODS:Between December 2007 and December 2015, 611 patients underwent lung cancer surgery; of these, 70 with cT1aN0M0 wh...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s00432-020-03441-1
更新日期:2020-11-05 00:00:00
abstract:BACKGROUND:As the molecular mechanisms of Cytarabine,one of the most important drugs used in the leukaemia’s treatment, are only partially understood and the role of autophagy on leukaemia development and treatment is only recently being investigated, in this study, by using Chloroquine (CQ) and 3-methyladenine (3MA) a...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s00432-014-1640-4
更新日期:2014-06-01 00:00:00
abstract::The arabinofuranosylcytosine (AraC) derivative N4-octadecyl-1-beta-D-arabinofuranosylcytosine (NOAC) and its (5'-->5')-heterodinucleoside phosphate analog NOAC-AraC were compared with AraC for cytotoxicity, cell-cycle dependence, phosphorylation by deoxycytidine (dC) kinase and apoptosis induction in native, AraC- or ...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s004320050349
更新日期:2000-06-01 00:00:00
abstract::We describe a slide assay that allows the demonstration of antigens localized in the nucleus from isolated white blood cells as well as from single tumor cells derived from malignant effusions. With the antibodies Ki-67 and anti-p-145 an increased rate of nuclear and nucleolar staining resulted in cells from highly ma...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/BF01625427
更新日期:1991-01-01 00:00:00
abstract:PURPOSE:To study the interplay of drugs and energy metabolism of tumor cells, metabolic changes induced by chloroacetaldehyde and cytochalasin B were analyzed in colon carcinoma cells LS174T. METHODS:O(2)-consumption and extracellular acidification were recorded using a bioelectronic sensor-chip system, which monitors...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s00432-005-0015-2
更新日期:2005-10-01 00:00:00
abstract:PURPOSE:Multiple gastrointestinal stromal tumors (GISTs) rarely occur in patients with neurofibromatosis type 1 (NF-1). In contrast to sporadic GISTs characterized by frequent allelic losses of 1p, 14q and 22q and mutations of KIT or PDGFRA gene with the activation of the downstream RAS-MAPK pathway, the molecular path...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s00432-008-0514-z
更新日期:2009-06-01 00:00:00
abstract:PURPOSE:Oral cancer (OC) patients are at high risk to develop recurrent disease or secondary primary cancers with no available biomarkers to detect these events until a visible lesion is readily present and diagnosed by biopsy. Exosomes secreted by cancer cells are involved in tumor growth, invasion and metastasis. We ...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s00432-015-2005-3
更新日期:2016-01-01 00:00:00
abstract:OBJECTIVE:Renal cell carcinoma (RCC) is the most common malignancy of the urinary system, and it is a serious threat to human health. HOXA transcript at the distal tip (HOTTIP), located at the 5' end of the HOXA locus, is a long non-coding RNA that has been newly discovered in recent years. It has been reported to prom...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/s00432-018-2808-0
更新日期:2019-03-01 00:00:00
abstract:PURPOSE:The present study was undertaken to examine the amplification and expression status of Cks1 in breast cancer and its significance. METHODS:The amplification and expression status of Cks1 gene was examined by FISH, real-time PCR and immunohistochemistry, respectively. RNA interference was used to detect the eff...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章,收录出版
doi:10.1007/s00432-009-0582-8
更新日期:2009-10-01 00:00:00
abstract::Laboratory and clinical data suggest some interactions between cytotoxic agents and tamoxifen. The mechanisms of these interactions differ in estrogen-receptor-negative cell lines. The ability of tamoxifen to modify the effects of epirubicin on the cell-cycle phases of estrogen-receptor-negative Ehrlich's carcinoma as...
journal_title:Journal of cancer research and clinical oncology
pub_type: 杂志文章
doi:10.1007/BF01269889
更新日期:1997-01-01 00:00:00