Abstract:
:Antiprogestins have been largely utilized in reproductive medicine, yet their repositioning for oncologic use is rapidly emerging. In this study we investigated the molecular mediators of the anti-ovarian cancer activity of the structurally related antiprogestins RU-38486, ORG-31710 and CDB-2914. We studied the responses of wt p53 OV2008 and p53 null SK-OV-3 cells to varying doses of RU-38486, ORG-31710 and CDB-2914. The steroids inhibited the growth of both cell lines with a potency of RU-38486 > ORG-31710 > CDB-2914, and were cytostatic at lower doses but lethal at higher concentrations. Antiprogestin-induced lethality associated with morphological features of apoptosis, hypodiploid DNA content, DNA fragmentation, and cleavage of executer caspase substrate PARP. Cell death ensued despite RU-38486 caused transient up-regulation of anti-apoptotic Bcl-2, ORG-31710 induced transient up-regulation of inhibitor of apoptosis XIAP, and CDB-2914 up-regulated both XIAP and Bcl-2. The antiprogestins induced accumulation of Cdk inhibitors p21(cip1) and p27(kip1) and increased association of p21(cip1) and p27(kip1) with Cdk-2. They also promoted nuclear localization of p21(cip1) and p27(kip1), reduced the nuclear abundances of Cdk-2 and cyclin E, and blocked the activity of Cdk-2 in both nucleus and cytoplasm. The cytotoxic potency of the antiprogestins correlated with the magnitude of the inhibition of Cdk-2 activity, ranging from G1 cell cycle arrest towards cell death. Our results suggest that, as a consequence of their cytostatic and lethal effects, antiprogestin steroids of well-known contraceptive properties emerge as attractive new agents to be repositioned for ovarian cancer therapeutics.
journal_name
Invest New Drugsjournal_title
Investigational new drugsauthors
Goyeneche AA,Seidel EE,Telleria CMdoi
10.1007/s10637-011-9655-zsubject
Has Abstractpub_date
2012-06-01 00:00:00pages
967-80issue
3eissn
0167-6997issn
1573-0646journal_volume
30pub_type
杂志文章abstract::UCN-01 is undergoing Phase I evaluation and is a candidate for combination strategies in the clinic. UCN-01 has been shown to have a variety of effects on cellular targets and the cell cycle. It has also been reported to sensitize cells to several clinical drugs in vitro, possibly in a manner related to p53 status. Th...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1023/a:1006313611677
更新日期:2000-05-01 00:00:00
abstract::Background C-Met, which is frequently activated in multiple cancers, has been implicated in tumor formation, progression, metastasis, angiogenesis, and resistance to multiple therapies. MK-8033 is a small-molecule inhibitor of c-Met that binds preferentially to the activated conformation, and has demonstrated anti-tum...
journal_title:Investigational new drugs
pub_type: 杂志文章,多中心研究
doi:10.1007/s10637-018-0567-z
更新日期:2018-10-01 00:00:00
abstract::Standard therapy for advanced or metastatic non-small cell lung cancer (NSCLC) has primarily consisted of traditional cytotoxic chemotherapy, although use of targeted therapies has been approved in specific settings. Antiangiogenic agents represent a promising therapeutic strategy for treatment of advanced NSCLC. Beva...
journal_title:Investigational new drugs
pub_type: 杂志文章,评审
doi:10.1007/s10637-011-9750-1
更新日期:2012-08-01 00:00:00
abstract:PURPOSE:Combining proteasome and histone deacetylase (HDAC) inhibition has been seen to provide synergistic anti-tumor activity, with complementary effects on a number of signaling pathways. The novel bi-cyclic structure of marizomib with its unique proteasome inhibition, toxicology and efficacy profiles, suggested uti...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-011-9766-6
更新日期:2012-12-01 00:00:00
abstract::Fluorinated pyrimidines, particularly 5-fluorouracil (FUra), have been the subject of intense and almost continuous basic and clinical study since development in the late 1950's by Dr. Charles Heidelberger. Despite this intensive effort, the most important mechanisms by which FUra influences tumor growth in individual...
journal_title:Investigational new drugs
pub_type: 杂志文章,评审
doi:10.1007/BF00178188
更新日期:1989-04-01 00:00:00
abstract:BACKGROUND:Although its efficacy is unproven, 5-fluorouracil plus cisplatin (FP) is used to prevent postoperative relapse in gastric cancer. We investigated the safety and feasibility of S-1 plus cisplatin (SP) vs. FP for stage IIIB-IV (M0) gastric cancer. METHODS:Following curative resection, 41 stage IIIB-IV (M0) ga...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-010-9515-2
更新日期:2012-02-01 00:00:00
abstract::Fifteen patients with advanced, cisplatin-refractory germ cell tumors (GCT) were treated on a phase II trial with topotecan. None of the 14 evaluable patients achieved a complete or partial response. Myelosuppression was the major toxicity. The median nadir leukocyte count was 1.75 cells/mm3, neutrophil count was 1.55...
journal_title:Investigational new drugs
pub_type: 临床试验,杂志文章
doi:10.1007/BF00872866
更新日期:1995-01-01 00:00:00
abstract::Objective The aim of the current study was to examine the anticancer activity and the detailed mechanism of novel diisoquinoline derivatives in human gastric cancer cells (AGS). Methods The viability of AGS cells was measured by MTT (3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide) assay. Cell cycle analy...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-018-0584-y
更新日期:2018-12-01 00:00:00
abstract::An inflammatory myofibroblastic tumor (IMT) is a rare mesenchymal neoplasm that typically develops in the lungs and seldom in the head and neck region. It is often related to the anaplastic lymphoma kinase (ALK) fusion gene. Crizotinib, a first-generation ALK inhibitor, has been shown to have a notable response in pat...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-019-00742-2
更新日期:2019-08-01 00:00:00
abstract::Background MET is a tyrosine kinase receptor involved in the regulation of cell proliferation and migration. Reported here are the phase I dose-escalation results for LY2875358, a monoclonal antibody against MET, in Japanese patients with advanced malignancies. Methods The study comprised a 3 + 3 dose-escalation part ...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-016-0370-7
更新日期:2016-10-01 00:00:00
abstract::A short-term antimetabolic assay based upon the inhibition of incorporation of nucleic acid precursors was used to compare the cytotoxicity of a new halogenated anthracycline, 4'-iodo-4'-deoxydoxorubicin (IDX), with that of its parent compound doxorubicin (DX) on human colo-rectal carcinoma specimens. IDX showed a mar...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/BF00177248
更新日期:1990-05-01 00:00:00
abstract::The anti-tumor properties of novel derivatives prepared from Aconitum C(20)-diterpenoid alkaloid, which show the least toxicity among the Aconitum alkaloids, were investigated in the Non-Hodgkin's lymphoma cell line Raji cells. Two novel Aconitum C(20)-diterpenoid alkaloid derivatives, 11-m-Trifluorometylbenzoyl (Mb)-...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-009-9327-4
更新日期:2011-02-01 00:00:00
abstract::Mitoxantrone (Novantrone) and prednimustine (Sterecyt) are both active as single agents in the treatment of unfavorable non-Hodgkin lymphoma (UNHL). The efficacy and toxicity of the combination of these agents (NOSTE) was evaluated in 28 patients with advanced histopathologically proven UNHL who were not eligible for ...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/BF00195368
更新日期:1988-06-01 00:00:00
abstract::Menogaril, a semisynthetic anthracycline antibiotic, was administered to patients with metastatic adenocarcinoma of the prostate. Forty-five patients with measurable disease and 45 patients with evaluable disease received 150-200 mg/m2 over 1 hour every 28 days. There were three partial responses (PR) among 87 patient...
journal_title:Investigational new drugs
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1007/BF00873240
更新日期:1994-01-01 00:00:00
abstract::Hepatocellular carcinoma (HCC) is the most prevalent type of tumor among primary liver tumors and is the second highest cause of cancer-related deaths worldwide. Current therapies are controversial, and more research is needed to identify effective treatments. A new synthetic compound, potassium 5-cyano-4-methyl-6-oxo...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-020-00941-2
更新日期:2020-12-01 00:00:00
abstract::Introduction BTH1677, a 1,3-1,6 beta-glucan immunomodulator, stimulates a coordinated anti-cancer immune response in combination with anti-tumor antibody therapies. This phase II study explored the efficacy, pharmacokinetics (PK), and safety of BTH1677 combined with cetuximab/carboplatin/paclitaxel in untreated stage ...
journal_title:Investigational new drugs
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1007/s10637-017-0450-3
更新日期:2017-06-01 00:00:00
abstract::A phase II trial of gemcitabine (Gemzar), a nucleoside analogue with broad activity in solid tumors, was performed in patients with recurrent or metastatic squamous cell carcinoma of the head and neck. A total of 26 eligible patients were registered to receive a dose of 1250 mg/m2 weekly for 3 weeks, followed by a 1 w...
journal_title:Investigational new drugs
pub_type: 临床试验,杂志文章
doi:10.1023/a:1010657609609
更新日期:2001-01-01 00:00:00
abstract:INTRODUCTION:This multicenter, open-label, phase II study was carried out to compare the efficacy and safety of cilengitide (EMD 121974), a selective inhibitor of the cell-surface integrins αVβ3 and αVβ5, with that of docetaxel in patients with advanced non-small-cell lung cancer (NSCLC). METHODS:Patients (n = 140) wi...
journal_title:Investigational new drugs
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1007/s10637-012-9842-6
更新日期:2013-02-01 00:00:00
abstract::Drug discovery involves various steps and is a long process being even more demanding for complex diseases such as cancer. Tumors are ensembles of subpopulations with different mutations, require very specific and effective strategies. Conventional drug screening technologies may not be adequate and efficient anymore....
journal_title:Investigational new drugs
pub_type: 杂志文章,评审
doi:10.1007/s10637-014-0081-x
更新日期:2014-12-01 00:00:00
abstract::Background The hexapeptide 4A6 (Ac-Thr(tBu)-His(Bzl)-Thr(Bzl)-Nle-Glu(OtBu)-Gly-Bza) was isolated from a peptide library constructed to identify peptide-based transport inhibitors of multidrug resistance (MDR) efflux pumps including P-glycoprotein and Multidrug Resistance-associated Protein 1. 4A6 proved to be a subst...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-018-0569-x
更新日期:2018-10-01 00:00:00
abstract::Matrix metalloproteinases (MMPs) are a class of structurally related enzymes that function in the degradation of extracellular matrix proteins that constitute the pericellular connective tissue and play an important role in both normal and pathological tissue remodelling. Increased MMP activity is detected in a wide r...
journal_title:Investigational new drugs
pub_type: 杂志文章,评审
doi:10.1023/a:1005855905442
更新日期:1997-01-01 00:00:00
abstract:BACKGROUND:This phase I, dose-finding study evaluated the maximum tolerated dose (MTD), safety, pharmacokinetics, and antitumor activity of sunitinib plus S-1/cisplatin in Japanese patients with advanced/metastatic gastric cancer. PATIENTS AND METHODS:Patients received oral sunitinib on a continuous daily dosing (CDD)...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-013-9948-5
更新日期:2014-04-01 00:00:00
abstract:PURPOSE:This study investigated the maximum-tolerated dose (MTD), dose-limiting toxicity (DLT), and pharmacokinetic (PK) profiles of DHP107, a novel oral paclitaxel containing neither Cremophor EL nor P-glycoprotein (P-gp) inhibitor. PATIENTS AND METHODS:Patients with advanced solid tumors refractory to all standard t...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-012-9841-7
更新日期:2013-06-01 00:00:00
abstract::The Eastern Cooperative Oncology Group undertook a limited institution phase II study of PCNU in advanced, metastatic breast cancer. The study was limited to patients treated with 1 to 2 prior chemotherapy regimens. Accrual goals were 30 patients but the study was terminated after 10 patients had no response, with a r...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/BF00170866
更新日期:1989-07-01 00:00:00
abstract::This study sought to measure the degree of synergy induced by specific small molecule inhibitors of DNA-PK [NU7026 and IC486241 (ICC)], a major component of the non-homologous end-joining (NHEJ) pathway, with SN38 or oxaliplatin. Synergy between the DNA damaging drugs and the DNA-PK inhibitors was assessed using the s...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-010-9626-9
更新日期:2012-06-01 00:00:00
abstract::AZQ was given intravenously to 23 patients with mixed mesodermal sarcoma of the uterus refractory to conventional treatment at a dose of 22.5-30 mg/m2 q three weeks. There was one partial response lasting seven weeks and one drug-related death. Based upon the activity observed in this trial, there does not appear to b...
journal_title:Investigational new drugs
pub_type: 临床试验,杂志文章,多中心研究
doi:10.1007/BF00194555
更新日期:1991-02-01 00:00:00
abstract:PURPOSE:Hepatobiliary cancers respond poorly to cytotoxic chemotherapy. We evaluated the activity and safety of ixabepilone, an epothilone B analogue which stabilizes microtubules, in a phase II trial in patients with advanced cancers of the gallbladder, bile duct, and liver. METHODS:Eligible patients had previously-u...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-009-9297-6
更新日期:2010-12-01 00:00:00
abstract::Topotecan (NSC 609099) is a camptothecin analogue that demonstrated activity against a variety of human tumors in preclinical studies. A phase II trial was performed with topotecan given to patients with locally advanced or metastatic adenocarcinoma of the stomach. Topotecan was administered IV Bolus over 30 minutes o...
journal_title:Investigational new drugs
pub_type: 临床试验,杂志文章
doi:10.1023/a:1005899720463
更新日期:1997-01-01 00:00:00
abstract::In a previous study we reported on the synthesis of 1,4-naphthoquinone-sulfides by thiolation of 1,4-naphthohydroquinones with primary aryl and alkyl thiols using laccase as catalyst. These compounds were synthesized as Vitamin K3 analogues. Vitamin K3 (VK3; 2-methyl-1,4-naphthoquinone; menadione) is known to have pot...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-019-00855-8
更新日期:2020-04-01 00:00:00
abstract:BACKGROUND:To evaluate the safety and tolerability of two different weekly doses of the fully humanized epidermal growth factor receptor (EGFR)-targeting monoclonal antibody matuzumab combined with high-dose 5-fluorouracil, leucovorin and cisplatin (PLF) in the first-line treatment of patients with EGFR-positive advanc...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-012-9848-0
更新日期:2013-06-01 00:00:00