Abstract:
:Brain microdialysis was applied to sample free methotrexate (MTX) concentrations in brain extracellular fluid of normal and RG-2 glioma-bearing rats. All animals received 50 mg/kg of MTX intra-arterially following which serial blood and interstitial fluid samples were collected for 3 h and measured for MTX by an HPLC assay. Retrodialysis was used to estimate the in vivo recovery of MTX from brain. A linear two-compartment model was fitted to the plasma MTX concentration-time data in both the normal and RG-2 groups. The mean total body clearance and volume of distribution at steady state of MTX varied from 0.90 +/- 0.3 to 0.24 +/- 0.02 l h-1 kg-1 (P < 0.05) and from 0.58 +/- 0.24 to 0.21 +/- 0.16 l kg-1 (P < 0.05) in control and tumor rats, respectively. The significant reductions in clearance and volume of distribution at steady-state were attributed in part to a cachectic state in the RG-2 animals in which total body water was reduced. The mean MTX area under the interstitial fluid concentration-time curve (AUC) was 171.6 +/- 69.14 micrograms min ml-1(control) and 583.5 +/- 296.7 micrograms min ml-1 (brain tumor-bearing rats). The significantly higher AUC values obtained with RG-2 rats compared with control rats may have resulted from high plasma MTX concentrations and a more permeable blood-tumor barrier (BTB). A hybrid physiologically based pharmacokinetic model was used to characterize the mechanisms responsible for the high MTX brain tumor concentrations. In conclusion, a microdialysis technique was successfully utilized to examine the extracellular uptake of MTX in brain. This technique can be a powerful tool to evaluate intracerebral drug kinetics and the delivery of drugs to brain tumors.
journal_name
Cancer Chemother Pharmacoljournal_title
Cancer chemotherapy and pharmacologyauthors
Devineni D,Klein-Szanto A,Gallo JMdoi
10.1007/s002800050518subject
Has Abstractpub_date
1996-01-01 00:00:00pages
499-507issue
6eissn
0344-5704issn
1432-0843journal_volume
38pub_type
杂志文章abstract:PURPOSE:The role of the microenvironment during the initiation and progression of carcinogenesis is now realized to be of critical importance, both for enhanced understanding of fundamental cancer biology, as well as exploiting this source of relatively new knowledge for improved molecular diagnostics and therapeutics....
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章,评审
doi:10.1007/s00280-008-0881-9
更新日期:2009-03-01 00:00:00
abstract::Cyclophosphamide pharmacokinetics have been studied in 16 female patients with advanced breast cancer. The group included 7 patients who were greater than 20%, less than or equal to 30% over ideal body weight and 5 patients who were greater than 30% over ideal body weight. Cyclophosphamide plasma elimination half-live...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/BF00570489
更新日期:1987-01-01 00:00:00
abstract:PURPOSE:Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) is a promising anticancer agent due to its selective cytotoxicity to transformed cells. However, most human hepatocellular carcinomas (HCC) develop resistance to TRAIL. Thus, there is an urgent need to investigate the molecular targets and the unde...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-011-1763-0
更新日期:2012-03-01 00:00:00
abstract::Pharmacokinetic studies in 11 patients with multiple myeloma were undertaken on the first and last days of one course of chemotherapy. The drug was administered PO in single doses of 6-14 mg daily. Melphalan concentrations were determined by high-performance liquid chromatography. The interpatient variability of pharm...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00306752
更新日期:1986-01-01 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:To determine the efficacy and safety of the combination therapy with docetaxel and cisplatin (CDDP) at low doses in elderly patients with advanced NSCLC. PATIENTS AND METHODS:A total of 42 patients aged > or =70 years with previously untreated advanced NSCLC received docetaxel 75 mg/m(2) plus CDDP 50 mg/m(2) o...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章,多中心研究
doi:10.1007/s00280-008-0749-z
更新日期:2009-02-01 00:00:00
abstract:PURPOSE:This study aimed to determine the correlation between DNA repair enzyme O6-methylguanine DNA methyltransferase (MGMT) status and the response to streptozocin in advanced well-differentiated pancreatic neuroendocrine tumors (WD panNETs). METHODS:To test the hypothesis that MGMT deficiency was required for an al...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-018-3700-y
更新日期:2019-01-01 00:00:00
abstract::We determined the kinetic parameters that describe the effect of 20 different modulators of the multidrug resistance pump on the reversal of cytotoxin accumulation in a resistant strain of P388 leukemia cells (P388/ADR), and on the reversal of cell killing for these cells. When measured by a direct comparison of the a...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s002800050468
更新日期:1996-01-01 00:00:00
abstract:BACKGROUND AND PURPOSE:The optimal chemotherapeutic protocol for the treatment of esophageal cancer has not yet been established. A dose-escalation study of docetaxel combined with cisplatin and 5-fluorouracil (5-FU) was performed to determine the optimal dose in patients with advanced esophageal squamous cell carcinom...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-010-1447-1
更新日期:2010-11-01 00:00:00
abstract::Levels of radioactivity and total anthracycline fluorescence in tissues of A/JAX mice were compared 1 h after IV administration of unlabeled or [14C]-labeled AD 32 (50 mg/kg). Highest levels of both fluorescence and radioactivity were found in the small intestine (including contents) and liver, a result consistent wit...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00253006
更新日期:1981-01-01 00:00:00
abstract::Nine children with soft tissue sarcomas, five of them rhabdomyosarcomas with initial metastatic disease, (one patient, partial response, one patient), refractory primary, (two patients, relapse, five patients) were treated with a combination of high-dose VP16 (100 mg/m2 daily for 5 days) and cisplatin (40 mg/m2 daily ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00685912
更新日期:1994-01-01 00:00:00
abstract:PURPOSE:Capecitabine and S-1 are orally administered fluoropyrimidine anticancer drugs widely used to treat gastrointestinal cancer. While anticoagulant therapy for cancer patients is recommended, many studies have shown that the effects of warfarin are enhanced by its interaction with fluoropyrimidine. We investigated...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-016-3080-0
更新日期:2016-08-01 00:00:00
abstract:OBJECTIVE:SDX-101 is the non-cyclooxygenase 2-inhibiting R-enantiomer of the non-steroid anti-inflammatory drug etodolac, and has anti-tumour activity in chronic lymphocytic leukaemia (CLL). SDX-308 and SDX-309 are more potent, structurally related indole-pyran analogues of SDX-101. The current study was performed to i...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-006-0400-9
更新日期:2007-09-01 00:00:00
abstract:PURPOSE:Cyclosporine A (CyA) is able to inhibit P-glycoprotein (P-gp) and to increase cytotoxicity of some anticancer drugs, including etoposide. However, the effect of CyA on the distribution of etoposide in normal tissues, which could affect their toxicity, has not been studied extensively. The purpose of this study ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-004-0784-3
更新日期:2004-08-01 00:00:00
abstract:PURPOSE:The plasma and cerebrospinal fluid (CSF) pharmacokinetics of the camptothecin analogs, 9-aminocamptothecin (9-AC) and irinotecan, were studied in a nonhuman primate model to determine their CSF penetration. METHODS:9-AC, 0.2 mg/kg (4 mg/m2) or 0.5 mg/kg (10 mg/m2), was infused intravenously over 15 min and iri...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s002800050768
更新日期:1998-01-01 00:00:00
abstract:PURPOSE:Axitinib is a potent and selective inhibitor of vascular endothelial growth factor receptors 1-3, approved for second-line treatment of advanced renal cell carcinoma (RCC). Preclinical studies did not indicate potential for axitinib-induced delayed cardiac repolarization. METHODS:The effect of axitinib on corr...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章,随机对照试验
doi:10.1007/s00280-015-2677-z
更新日期:2015-03-01 00:00:00
abstract:PURPOSE:Tyrosine kinase inhibitors (TKI) that target MET signaling have shown promise in various types of cancer, including lung cancer. Combination strategies have been proposed and developed to increase their therapeutic index. Based on preclinical synergy between inhibition of MET and topoisomerase I, a phase I stud...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-018-3672-y
更新日期:2018-10-01 00:00:00
abstract:PURPOSE:This study was designed to evaluate the anti-tumor activity and toxicity profile of gemcitabine in the treatment of patients with advanced nasopharyngeal carcinoma (NPC) who had been pretreated with platinum-based chemotherapy. METHOD:This is an open label, single arm phase II trial. All patients were treated ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-007-0441-8
更新日期:2008-01-01 00:00:00
abstract:PURPOSE:The established treatment for small-cell lung cancer has been a cisplatin-etoposide combination, as the most effective chemotherapy regimen. Paclitaxel has also been used in combination with cisplatin and etoposide but this has been unacceptable due to the toxicity. This toxicity could be attributed to the thre...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章,多中心研究
doi:10.1007/s00280-012-2022-8
更新日期:2013-02-01 00:00:00
abstract::The toxicity of single doses of the anthracycline epirubicin was compared in the rat after either the intravenous (i.v.; 2-6 mg/kg) or intraperitoneal (i.p.; 4-8 mg/kg) administration of the drug. These doses produced comparable acute toxicity that was characterised by a dose-dependent, transient reduction in body wei...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00257620
更新日期:1989-01-01 00:00:00
abstract:PURPOSE:To assess the effect of elotuzumab on corrected QT (QTc) intervals and cardiac safety. METHODS:Patients with high-risk smoldering multiple myeloma who had been treated with elotuzumab monotherapy (10 or 20 mg/kg) in Study CA204011 (NCT01441973) underwent electrocardiogram (ECG) examination over 8-10 weeks (tre...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-016-3182-8
更新日期:2016-12-01 00:00:00
abstract:PURPOSE:Oral administration of 9-nitrocamptothecin (9NC), and the formation of its metabolite 9-aminocamptothecin (9AC), may be associated with high interpatient and intrapatient variability. Therefore, we evaluated the plasma pharmacokinetics and urine recovery of 9NC administered on three different schedules as part ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/s00280-004-0835-9
更新日期:2004-12-01 00:00:00
abstract:PURPOSE:The purpose of this article is to report the first case of markedly increased anticoagulant activity of warfarin when used in combination with doxifluridine, given as a replacement for capecitabine. METHODS:International normalized ratio (INR) of a 73-year-old female patient receiving warfarin was increased af...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-010-1249-5
更新日期:2010-10-01 00:00:00
abstract::PANC02 is a unique experimental animal tumor that fails to respond significantly to any known clinically active antitumor agent. In this regard, the murine ductal adenocarcinoma resembles its human counterpart. To study the mechanism for its intrinsic resistance to 6-thioguanine (TG), we compared the metabolism of the...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00684850
更新日期:1992-01-01 00:00:00
abstract:PURPOSE:The ErbB family members are protein tyrosine kinases, which play a crucial role in the signal transduction pathways that regulate key cellular functions. Overexpression of the ErbB family members is associated with oncogenicity, metastatic potential, cell proliferation, apoptosis, angiogenesis, and prognosis in...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章,评审
doi:10.1007/s00280-011-1748-z
更新日期:2011-12-01 00:00:00
abstract:PURPOSE:Tetrandrine (Tet), a bis-benzylisoquinoline alkaloid that was isolated from the dried root of Hang-Fang-Chi (Stephania tetrandra S. Moore), is well known as processing a marked antitumor effect in vitro and in vivo. The aim of this study was to assess the interaction between tetrandrine and chemotherapeutic age...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-007-0416-9
更新日期:2007-10-01 00:00:00
abstract::Epirubicin (4'-epidoxorubicin), an analogue of doxorubicin (Adriamycin), has established activity in the treatment of small-cell lung cancer (SCLC) when used at doses of 75 to 120 mg/m2 in previously untreated patients. We completed a phase II study of epirubicin (85 mg/m2 given intravenously at 3-week intervals) in 2...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00685514
更新日期:1991-01-01 00:00:00
abstract:PURPOSE:Bevacizumab or temsirolimus regimens have clinical activity in the first-line treatment of advanced renal cell carcinoma (RCC). This phase I/II trial was conducted to determine the safety of combining both agents and its efficacy in RCC patients who progressed on at least one prior anti-VEGF receptor tyrosine k...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-014-2668-5
更新日期:2015-03-01 00:00:00
abstract::Twenty patients with bladder cancer (T1, 3 patients; T2, 6 patients; T3, 8 patients; T4a, 3 patients) were preoperatively treated with intra-arterial doxorubicin chemotherapy in combination with low-dose irradiation. The originally scheduled operations were as follows: total cystectomy in 16 patients (T1 + cis, 1 pati...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00262477
更新日期:1987-01-01 00:00:00
abstract::Recent studies in human bone-marrow culture and healthy human volunteers suggest that lenograstim [glycosylated, recombinant human granulocyte colony-stimulating factor (rHuG-CSF) produced in Chinese hamster ovary (CHO) cells] has greater in vivo potency than filgrastim [nonglycosylated, methionine-extended recombinan...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s002800050570
更新日期:1997-01-01 00:00:00