Abstract:
PURPOSE:To determine the growth inhibitory effects of mifepristone on endometrial cancer cell growth and evaluate its effect on apoptosis using HEC-1-A and Ishikawa human endometrial cancer cell lines. METHODS:The human endometrial cancer cell lines, HEC-1-A and Ishikawa, were cultured in vitro. MTT assays were completed in order to estimate the IC(50) of mifepristone. Both cell lines were then treated with the respective IC(50) values. Immunohistochemistry assays were performed to investigate the expression of estrogen receptors alpha and beta (ERalpha/beta), progesterone receptor alpha and beta (PR alpha/beta), cyclooxygenase-2 (COX-2), bax, p53, and bcl-2. Flow cytometry analysis was performed to study cell cycle arrest and apoptosis. RESULTS:The estimated IC(50) of mifepristone for HEC-1-A and Ishikawa was found to be 16 and 19 mug/ml respectively. At this concentration, there was no change in either ERalpha/beta or PR alpha/beta in Ishikawa. However, PR beta expression increased with time of treatment in HEC-1-A. Expression of p53 was increased with duration of treatment in both cell lines. Consequently a decrease in bcl-2 and an increase in COX-2 expression were seen in HEC-1-A and Ishikawa cells, respectively. Lastly, flow cytometry analysis confirmed an accumulation of cells in G0 phase after 72 h of treatment in both cell lines. CONCLUSIONS:Mifepristone demonstrates activity in both HEC-1-A and Ishikawa cells at clinically relevant concentrations based on an oral human dose of about 200 mg/day. While its mechanism of action remains unknown, this data supports an increase in apoptosis that may be due to p53 activation rather than hormone receptor mediation. Additional studies are needed to help further identify mifepristone mechanism of action.
journal_name
Cancer Chemother Pharmacoljournal_title
Cancer chemotherapy and pharmacologyauthors
Navo MA,Smith JA,Gaikwad A,Burke T,Brown J,Ramondetta LMdoi
10.1007/s00280-007-0628-zsubject
Has Abstractpub_date
2008-08-01 00:00:00pages
483-9issue
3eissn
0344-5704issn
1432-0843journal_volume
62pub_type
杂志文章abstract:PURPOSE:Paclitaxel and docetaxel are two taxanes approved for the treatment of non-small-cell lung cancer (NSCLC). However, there is limited evidence regarding the efficacy of docetaxel in NSCLC previously treated with a paclitaxel-platinum doublet (PP). The aim of our study was to evaluate the response to docetaxel in...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-014-2522-9
更新日期:2014-10-01 00:00:00
abstract:PURPOSE:Decitabine is a nucleoside analog used in the treatment for myelodysplastic syndrome. The compound requires intracellular conversion to its triphosphate to become active. Decitabine triphosphate has, however, never been quantified in peripheral blood mononuclear cells (PBMCs) from patients. METHOD:This article...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-012-1850-x
更新日期:2012-06-01 00:00:00
abstract::Purified human leukocyte interferon produced by recombinant techniques (IFN-alpha A) was tested in vitro with chemotherapeutic drugs, vinblastine (VLB), vincristine (VCR), vindesine (VDS), vinzolidine (VZL), cis-platinum (PLAT), doxorubicin (DOXO), etoposide (VP-16), and melphalan (MEL). The activity of these agents a...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00255753
更新日期:1983-01-01 00:00:00
abstract::In early studies of the antitumor drug 1-(2-chloroethyl)-3-(4-methylcyclohexyl)-1nitrosourea (methyl-CCNU), animal models consistently predicted that the compound would be nephrotoxic in humans. Nephrotoxicity in cancer patients who had received methyl-CCNU was not confirmed until about 6 years after clinical trials b...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00257241
更新日期:1982-12-01 00:00:00
abstract::Paclitaxel is used as a single agent, and in combination with other drugs, as a standard of care in the treatment of squamous cell carcinoma of the head and neck (SCCHN). However, the use of paclitaxel for therapy of SCCHN may be accompanied by serious side effects. Paclitaxel is a known cytotoxic inhibitor of cell pr...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-004-0929-4
更新日期:2005-07-01 00:00:00
abstract:PURPOSE:Ifosfamide is a cornerstone of chemotherapy in bone and soft-tissue sarcoma. Results of pharmacokinetic studies indicate that the optimal schedule of ifosfamide should be repeated doses over several days. With the development of 5-day infusion devices, we developed and evaluated a 5-day infusion regimen of ifos...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/s00280-009-1054-1
更新日期:2010-02-01 00:00:00
abstract:PURPOSE:Based on the preclinical evidence of topoisomerase I (Topo-1) upregulation by mitomycin C(MMC) and decreased NF-kappaB activation by celecoxib, we evaluated combinations of irinotecan/MMC and irinotecan/MMC/celecoxib in patients with advanced solid malignancies. PATIENTS-METHODS:Initially, patients received MM...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-008-0826-3
更新日期:2009-05-01 00:00:00
abstract:PURPOSE:Methotrexate polyglutamates (MTXpg) facilitate incorporation of thioguanine nucleotides into DNA (DNA-TG, the primary cytotoxic thiopurine metabolite and outcome determinant in MTX/6-mercaptopurine treatment of childhood ALL). We hypothesized that mapping erythrocyte levels of MTXpg with 1-6 glutamates and thei...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-018-3704-7
更新日期:2019-01-01 00:00:00
abstract::A total of 13 patients receiving bone marrow transplants (BMT) for treatment of different haematological diseases were investigated. Conditioning therapy preceding BMT consisted of fractionated total-body irradiation (12 Gy) and high-dose chemotherapy with cyclophosphamide (2 +/- 60 mg/kg). Patients stratified to be a...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00689585
更新日期:1989-01-01 00:00:00
abstract:BACKGROUND:Cediranib (RECENTIN™) is an oral, highly potent VEGF inhibitor. This study evaluated the effect of food on the pharmacokinetics of cediranib and compared the administration of continual cediranib via two dosing strategies using this as a platform to investigate pharmacodynamic imaging biomarkers. METHODS:Si...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1007/s00280-010-1534-3
更新日期:2011-09-01 00:00:00
abstract:PURPOSE:The aim was to investigate in patients receiving doxorubicin whether any alteration in myocardial oxidative metabolism or blood flow as assessed by positron emission tomography (PET) could be observed either after the first dose of the drug, or during its chronic administration. METHODS:Six female non-heart-fa...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s002800051005
更新日期:2000-01-01 00:00:00
abstract:PURPOSE:This phase I study assessed the safety, tolerability, maximum tolerated dose (MTD), pharmacokinetics, and preliminary antitumor effects of sunitinib combined with modified FOLFOX6 (mFOLFOX6). METHODS:Patients with advanced solid malignancies received mFOLFOX6 in 2-week cycles with escalating sunitinib doses (2...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-012-1880-4
更新日期:2012-07-01 00:00:00
abstract:PURPOSE:To evaluate the effect of renal impairment on eribulin mesylate pharmacokinetics following a single dose in adults with advanced solid tumors. METHODS:Patients were grouped by renal function: moderate impairment (creatinine clearance [CrCl] 30-50 mL/min), severe impairment (CrCl 15-29 mL/min), or normal (CrCl ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1007/s00280-015-2878-5
更新日期:2015-11-01 00:00:00
abstract::2'-deoxycoformycin (2'-dCF; Pentostatin), a stoichiometric inhibitor of mammalian adenosine deaminase (ado deaminase), exhibits immunosuppressive and antilymphocytic activity in animal test systems. A clinical pharmacology/phase I study of 2'-dCF administered as a single agent has been completed (18 patients). Dose le...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00435411
更新日期:1980-01-01 00:00:00
abstract:PURPOSE:Older patients with acute myeloid leukemia (AML) and myelodysplastic syndrome have often been excluded from myeloablative-conditioning regimens containing busulfan because of non-disease-related morbidity and mortality. We hypothesized that busulfan clearance (BuCL) in older patients (>60 years) would be reduce...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/s00280-014-2571-0
更新日期:2014-11-01 00:00:00
abstract::The aim of the present investigation was to evaluate the potential cardioprotective effect of reduced glutathione (GSH) against the delayed cardiomyopathy induced by doxorubicin (DXR) in a well-documented rat model. DXR was administered i.v. at a weekly dose of 3 mg/kg for a total of 4 doses; 250 or 500 mg/kg of GSH w...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00685691
更新日期:1991-01-01 00:00:00
abstract:OBJECTIVE:Docetaxel given orally as monotherapy results in low bioavailability of <10%. Previous studies have indicated that the intestinal efflux pump P-glycoprotein (P-gp) prevents uptake from the gut resulting in low systemic exposure to docetaxel. The purpose of this study was to determine the degree of enhancement...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/s00280-004-0864-4
更新日期:2005-01-01 00:00:00
abstract::Antibodies can be used to target cancer therapies to malignant tissue; the approach is attractive because conventional treatments such as chemo- and radiotherapy are dose limited due to toxicity in normal tissues. Effective targeting relies on appropriate pharmacokinetics of antibody-based therapeutics, ideally showin...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章,评审
doi:10.1007/pl00014055
更新日期:2000-01-01 00:00:00
abstract:BACKGROUND:This phase 1 study evaluated the safety, tolerability, pharmacokinetics and efficacy of patritumab (U3-1287) Process 2, a new formulation of fully human anti-HER3 monoclonal antibody in combination with erlotinib, an epidermal growth factor receptortyrosine kinase inhibitor (EGFR-TKI) in prior chemotherapy t...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-016-3231-3
更新日期:2017-03-01 00:00:00
abstract:PURPOSE:Some clinical studies on etoposide (Eto) have shown marked schedule dependency of the effect (starting at about 1 mg/l) and toxicity (over about 10 mg/l) whereas other studies have not confirmed these results. What are the conclusions we can draw from these inconsistent results when developing new low-dose (LD)...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-001-0418-y
更新日期:2002-04-01 00:00:00
abstract::One hundred and seventy six patients (81 controls, 95 receiving treatment) have entered a prospective randomized trial of long-term oral adjuvant razoxane (ICRF-159) following removal of a colorectal cancer. The median follow-up is 34 months. The treated patients in Dukes' groups B and C have a significantly longer di...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF00254053
更新日期:1982-01-01 00:00:00
abstract::Irinotecan-induced mucositis is a major oncological problem. Goblet cells secrete mucus, protecting the intestinal mucosa, with secretion altered during mucositis. The enteric nervous system is involved in regulating gut motility and secretion. The aim of this study was to determine whether enteric neural cells and go...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-019-03787-5
更新日期:2019-05-01 00:00:00
abstract:OBJECTIVE:To study the pharmacokinetics of neamine in rats and to evaluate its anti-cervical cancer activity. METHODS:The plasma level of neamine was determined by HPLC-ELSD. Pharmacokinetic parameters were calculated using DAS 2.0 software. Tissue microarray analysis was conducted to examine angiogenin (ANG) expressi...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-014-2658-7
更新日期:2015-03-01 00:00:00
abstract::The aim of the present study was to test the ability of the chemotherapeutic agent suramin to inhibit angiogenesis in experimental models in vitro and in vivo. In the culture of rat aortic rings on fibronectin, suramin dose-dependently inhibited vascular cell growth, achieving the maximal effect (mean - 88% versus con...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s002800050885
更新日期:1999-01-01 00:00:00
abstract::A variety of purine analogs inhibit the growth and induce the differentiation of human promyelocytic leukemia (HL-60) cells that lack the purine salvage enzyme hypoxanthine-guanine phosphoribosyltransferase (HGPRT). Mechanisms by which purine analogs induce differentiation offer unique potential for cancer chemotherap...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00689581
更新日期:1989-01-01 00:00:00
abstract:PURPOSE:Chemosensitizers such as cyclosporin A can increase intracellular accumulation of chemotherapeutic agents such as Adriamycin in certain multidrug-resistant (MDR) cell lines with overexpression of P-glycoprotein. It is likely that, when combined with cyclosporin A, hyperthermia could increase membrane permeabili...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s002800050033
更新日期:2000-01-01 00:00:00
abstract::Previous studies have identified interleukin 6 (IL-6) as an important cytokine with prognostic significance in ovarian cancer. Activation of the IL-6-Stat3 pathway contributes to tumor cell growth, survival and drug resistance in several cancers, including ovarian cancer. To explore potential therapeutic strategies fo...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-008-0785-8
更新日期:2009-03-01 00:00:00
abstract:PURPOSE:Efforts are underway in improving the informed consent process. The success of these efforts to improve quality of informed consent forms (ICFs) for phase I oncology trials has not been previously measured. METHODS:We reviewed and compared ICFs of all phase I trials for metastatic cancer conducted between 1986...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-018-3673-x
更新日期:2018-11-01 00:00:00
abstract::The ability of the polysulfonated antitumor drug suramin and six related polysulfonated azo dyes to inhibit the cell growth, platelet-derived growth factor (PDGF)-receptor binding, and intracellular Ca2+ signaling of Swiss 3T3 fibroblasts was studied. Some of the azo dyes were more potent inhibitors of PDGF binding th...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00685552
更新日期:1992-01-01 00:00:00
abstract:PURPOSE:In the treatment of head and neck malignancy, cisplatin and 5-FU have been used the most as chemotherapeutic agents. The difference in efficacies of these is unclear and controversial. To investigate more effective schedule, we analyzed the cytotoxicity in different treatment sequence with two agents in vitro a...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-007-0658-6
更新日期:2008-10-01 00:00:00