Abstract:
PURPOSE:DDB (dimethyl-4,4'-dimethoxy-5,6,5'6'-dimethylene dioxybiphenyl-2,2'-dicarboxylate) is a synthetic hepatoprotectant which has been widely used to treat chronic viral hepatitis B patients in China for more than 20 years. In this study, we evaluated DDB as a multidrug resistance (MDR) chemosensitizing agent. METHODS:A panel of sensitive and resistant cancer cell lines were treated with various concentration of DDB, and the effect on chemosensitivity and accumulation of anticancer drugs; promotion of apoptosis and P-glycoprotein (P-gp) expression were determined by MTT (Dimethyl thiazolyl-2,5-diphenyltetrazolium bromide) assay, fluorospectrometry and flow cytometry respectively. Drug resistance reversal activity of DDB was also examined in BALB/c nude mice bearing both acquired MDR human nasopharyngeal carcinoma KBv200 and parental KB xenografts. The effect of DDB on the pharmacokinetics of Dox and hematological toxicity induced by Dox was measured in ICR and C(57)/BL mice, respectively. RESULTS:DDB at nontoxic concentrations of 12.5, 25 and 50 microM partly reversed the resistance to vincristine, doxorubicin, paclitaxel in acquired MDR breast carcinoma MCF-7/Adr cells, KBv200 and intrinsic MDR human hepatocarcinoma Bel(7402) cells, whereas no chemosensitizing effect of DDB was observed in sensitive KB and MCF-7 cells. DDB increased the intracellular accumulation of doxorubicin and inhibited surface P-gp expression in MCF-7/Adr cells. Furthermore, it was found that DDB promoted doxorubicin-induced apoptosis of Bel(7402) cells through enhanced caspase-3 activation. Co-administration of DDB at 300 and 500 mg/kg orally to nude mice increased the antitumor activity of vincristine to KBv200 xenografts without a significant increase in toxicity. In contrast, Co-administration of DDB did not inhibit the growth of KB xenografts. DDB also markedly reduced the decrease of leukocytes in doxorubicin-treated C(57)/BL mice. Co-administration of DDB increased Dox concentration in ICR mice bearing S180 sarcoma, but no pharmacokinetical interaction with Dox was observed. CONCLUSION:These results indicate that DDB has MDR reversal activity by inhibiting P-gp and when used in combination with anti-cancer drugs, it could potentially be used as a clinical treatment for P-gp-mediated MDR cancers.
journal_name
Invest New Drugsjournal_title
Investigational new drugsauthors
Jin J,Sun H,Wei H,Liu Gdoi
10.1007/s10637-006-9001-zsubject
Has Abstractpub_date
2007-04-01 00:00:00pages
95-105issue
2eissn
0167-6997issn
1573-0646journal_volume
25pub_type
杂志文章abstract::Background To determine the recommended dose (RD) of a combination of PM01183 and gemcitabine in patients with advanced solid tumors. Methods Forty-five patients received escalating doses of PM01183/gemcitabine on Days 1 and 8 every 3 weeks (d1,8 q3wk) following a standard 3 + 3 design. Results PM01183 3.5 mg flat dos...
journal_title:Investigational new drugs
pub_type: 杂志文章,多中心研究
doi:10.1007/s10637-016-0410-3
更新日期:2017-04-01 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::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::The neurotransmitter serotonin is involved in numerous bodily functions via seven different serotonin receptor subfamilies. Serotonin plays a role in gastrointestinal functions like intestinal secretion or peristalsis and neuropsychiatric events like depression or migraine. One of these subtypes has been found on glio...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-011-9781-7
更新日期:2012-12-01 00:00:00
abstract:OBJECTIVE:To determine the recommended dose for phase II trials of elisidepsin (PM02734, Irvalec®) in combination with erlotinib in patients with advanced malignant solid tumors. METHODS:Open-label, dose-escalating, phase I study of intravenous elisidepsin administered weekly (days 1, 8 and 15) over 3 h as a flat dose...
journal_title:Investigational new drugs
pub_type: 杂志文章,多中心研究
doi:10.1007/s10637-015-0305-8
更新日期:2016-02-01 00:00:00
abstract::Mezerein, the most active antitumor compound isolated from the daphne species of plants, has a structural similarity to phorbol myristate acetate (PMA), the major active compound isolated from croton oil. PMA is known to have tumor promoting activity and is a potent inflammatory agent. Mezerein has similarly been repo...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/BF00170855
更新日期:1989-07-01 00:00:00
abstract::T cells are important effectors in anti-tumor immunity, and aberrant expression of B7 family members may contribute to tumor evasion. In this study, we analyzed expression of costimulatory molecules on human hematologic tumor cells and explored whether B7-H3, a member of the B7 superfamily, is an effective target for ...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-019-00819-y
更新日期:2020-06-01 00:00:00
abstract::Antiproliferative factor (APF) is a potent frizzled protein 8-related sialoglycopeptide inhibitor of bladder epithelial cell proliferation that mediates its activity by binding to cytoskeletal associated protein 4 in the cell membrane. Synthetic asialylated APF (as-APF) (Galβ1-3GalNAcα-O-TVPAAVVVA) was previously show...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-011-9746-x
更新日期:2012-10-01 00:00:00
abstract::Fifty-four evaluable patients with SCLC previously treated with chemotherapy received either N-methylformamide or spirogermanium. There was one partial response to N-methylformamide. The median survival times for patients treated with N-MF and spirogermanium were 11.7 and 12.6 weeks respectively. Five patients treated...
journal_title:Investigational new drugs
pub_type: 临床试验,杂志文章
doi:10.1007/BF00177255
更新日期:1990-05-01 00:00:00
abstract::Menogarol is a new anthracycline undergoing phase I clinical trial. We report here the lethality after 2 hr exposure to 2 drug combinations of menogarol and several antitumor agents. A new statistical procedure was used to identify synergistic combinations. Most of these combinations were additive, except for menogaro...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/BF00179427
更新日期:1985-01-01 00:00:00
abstract::In this study, 30 evaluable patients with advanced carcinoma of the breast were treated with cyclophosphamide 600 mg/m2 i.v. followed one day later with mitoxantrone (Novantrone; dihydroxyanthracenedione) 16 mg/m2 i.v. Drug treatment was repeated every 3-4 weeks, for a maximum of 12 cycles. The overall response rate w...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/BF00174165
更新日期:1985-01-01 00:00:00
abstract::Thirty-two patients with advanced epidermoid carcinoma of the esophagus were treated with ifosfamide (1.50 gm/m2 daily x 5 days) with uroprotective mesna in a phase II study. Eighteen patients were previously untreated. Of 28 evaluable patients, two (7%) had partial remissions lasting 2+ and 6+ months. Toxicity was pr...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/BF00175406
更新日期:1988-09-01 00:00:00
abstract::alpha-Difluoromethylornithine (DFMO) is a known irreversible inhibitor of ornithine decarboxylase (ODC), the rate-limiting enzyme in polyamine biosynthesis. Cyclosporine (CsA) has been reported to inhibit ODC activity in vitro. In the present study, we compared the effects of DFMO and CsA on growth, survival, and poly...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/BF00175295
更新日期:1987-01-01 00:00:00
abstract::Echinomycin is a quinoxaline antibiotic that was originally isolated from Streptomyces echinatus. Based on its antitumor activity against two i.p. implanted murine tumors, the B16 melanoma, and the P388 leukemia, it was brought into clinical trials by the National Cancer Institute. Recent studies on its cytotoxic acti...
journal_title:Investigational new drugs
pub_type: 临床试验,杂志文章,评审
doi:10.1007/BF00170766
更新日期:1985-01-01 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::Signal transduction pathways, which regulate cell growth and survival, are up-regulated in many cancers and there is considerable interest in their pharmaceutical modulation for cancer treatment. However inhibitors of single pathway components induce feedback mechanisms that overcome the growth moderating effect of th...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-018-0642-5
更新日期:2019-06-01 00:00:00
abstract:PURPOSE:To investigate the safety, optimal dosing, pharmacokinetics and clinical activity of a regimen of navitoclax (ABT-263) combined with gemcitabine in patients with solid tumors. EXPERIMENTAL DESIGN:Patients with solid tumors for which gemcitabine was deemed an appropriate therapy were enrolled into one of two di...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-014-0110-9
更新日期:2014-10-01 00:00:00
abstract::Up to 30% of patients with advanced germ cell tumors will fail induction chemotherapy or will relapse. New agents with activity in this still potentially curable subgroup of patients are needed. Edatrexate (10-ethyl, 10-deaza-aminopterin) is a methotrexate analogue that has preclinical and clinical activity in breast,...
journal_title:Investigational new drugs
pub_type: 临床试验,杂志文章
doi:10.1023/a:1006128024879
更新日期:1998-01-01 00:00:00
abstract::TNF-alpha may improve drug delivery to tumors by alteration of vascular permeability. However, toxicity precludes its systemic administration in patients. NGR-TNF comprises TNF coupled to the peptide CNGRC, which is a ligand for CD13. CD13 is expressed on tumor vasculature. Therefore, to assess the efficacy of NGR-TNF...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-005-4540-2
更新日期:2006-01-01 00:00:00
abstract::Neuroblastoma is an extracranial, solid, and heterogeneous malignancy in children. The conventional therapeutic modalities are mostly ineffective and thus new therapeutic strategies for malignant neuroblastoma are urgently warranted. We examined the synergistic efficacy of combination of sorafenib (SF) and genistein (...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-009-9324-7
更新日期:2010-12-01 00:00:00
abstract::Lactoferrin has gained extensive attention due to its ample biological properties. In this study, recombinant human lactoferrin carrying humanized glycosylation (rhLf-h-glycan) expressed in the yeast Pichia pastoris SuperMan5, which is genetically glycoengineered to efficiently produce functional humanized glycoprotei...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-020-01020-2
更新日期:2020-10-16 00:00:00
abstract:INTRODUCTION:The analysis of predictive factors of response may aid in predicting which patients with advanced renal cell carcinoma (RCC) would be good candidates for systemic treatments. MATERIALS AND METHODS:The expression of several biomarkers was retrospectively analyzed using immunohistochemistry (IHC), as well a...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-012-9836-4
更新日期:2012-12-01 00:00:00
abstract::Hexamethylenebisacetamide (HMBA), an in vitro differentiating agent, was studied for its pharmacodynamic actions in animals. Plasma stability, organ distribution, excretion, oral bioavailability, and estimates of pharmacokinetic parameters and acute lethality were determined in rats. The single dose intraperitoneal LD...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/BF00179430
更新日期:1985-01-01 00:00:00
abstract::As HER2 is a client protein of the molecular chaperone Hsp90, targeting Hsp90 may be beneficial in HER2-positive breast cancer. In this study, the activity of the Hsp90 inhibitor NVP-AUY922 was assessed in HER2 overexpressing breast cancer cell lines, including two cell line models of acquired trastuzumab-resistance. ...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-017-0556-7
更新日期:2018-08-01 00:00:00
abstract::This report shows that N-acylation of the protein kinase C (PKC) substrate Arg-Lys-Arg-Thr-Leu-Arg-Arg-Leu (RKRTLRRL) provides it with a potent inhibitory activity against PKC. N-myristoyl-RKRTLRRL inhibited Ca2(+)- and phosphatidylserine (PS)-dependent histone phosphorylation catalyzed by PKC with a 50% inhibitory co...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/BF00175084
更新日期:1991-05-01 00:00:00
abstract:BACKGROUND:Preclinical data suggested that sustained inhibition of the anabolic enzyme, ribonucleotide reductase (RR), by hydroxyurea (HU) may be critical for the anticancer effects of the drug. A phase I trial of continuous infusion HU with concomitant hyperfractionated, accelerated radiation therapy (CHU-CHRT) was in...
journal_title:Investigational new drugs
pub_type: 临床试验,杂志文章
doi:10.1023/a:1006102716920
更新日期:1998-01-01 00:00:00
abstract:PURPOSE:To assess the maximum well-tolerated dose (MWTD), dose limiting toxicity (DLT), pharmacokinetics (PK) and pharmacodynamics of zibotentan, a novel specific endothelin-A receptor antagonist, in patients with metastatic prostate cancer. METHODS:Patients with metastatic, castrate-resistant prostate cancer (CRPC) w...
journal_title:Investigational new drugs
pub_type: 杂志文章,多中心研究
doi:10.1007/s10637-009-9318-5
更新日期:2011-02-01 00:00:00
abstract::We performed a single-institution phase II study to evaluate the efficacy and toxicities of vinorelbine monotherapy in patients previously treated with anthracyclines and taxanes. Vinorelbine was administered at a dose level of 25 mg/m² intravenously on days 1, 8, 15 and 22, every four weeks, and responses were assess...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-009-9357-y
更新日期:2011-04-01 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::Histone deacetylases (HDACs) play an important role in the epigenetic regulation of gene expression through their effects on the compact chromatin structure. In clinical studies, several classes of histone deacetylase inhibitors (HDACi) have demonstrated potent anticancer activities with metal complexes. Hence, we syn...
journal_title:Investigational new drugs
pub_type: 杂志文章
doi:10.1007/s10637-017-0489-1
更新日期:2017-12-01 00:00:00