Abstract:
PURPOSE:Nephrotoxicity is one of the major dose-limiting side-effects of cisplatin (DDP). The disproportionate accumulation of cisplatin in kidney tissue may play an important role, however, therapeutic measures to prevent this prime cause of nephrotoxicity are not available. Because certain amino acids (AAs) have been reported to modulate DDP nephrotoxicity in vivo, we explored the potential of all 20 protein AAs, N-acetylcysteine and DL-homocysteine to reduce DDP cytotoxicity and uptake in S1, S3 (proximal tubule), and DCT (distal convoluted tubule) cell lines. METHODS:Immortalized but non-transformed renal tubule epithelial cell lines, derived from specific portions of the nephron of an SV40 transgenic mouse. were grown to confluency and exposed to various concentrations of DDP for 1 h with or without concurrent exposure to AAs in an otherwise AA-free Krebs-Ringer buffer (KRB). After 1 h, cell layers were washed and replenished with medium for cytotoxicity assays, or processed immediately for the determination of DDP accumulation. Cytotoxicity was assessed 48 h later by an MTT assay, and DDP uptake after 1 h was determined by atomic absorption spectroscopy. RESULTS:In an initial screening where the cells were concurrently incubated with 0.25 mM DDP and 1 mM AA for 1 h in KRB, only cysteine (Cys), methionine (Met), N-acetylcysteine and DL-homocysteine reduced DDP toxicity. This effect was enhanced at 5 mM AA and most potent for Cys, which reduced DDP cytotoxicity by 79 +/- 3% in S3 cells, by 78 +/- 12.2% in DCT cells, and by 19 +/- 3.6% in S1 cells (P < 0.05). Reduction of cytotoxicity was less for Met, DL-homocysteine, and N-acetylcysteine, in decreasing order. All four AAs also inhibited DDP uptake in renal cells, with Cys as the strongest inhibitor. Inhibition of DDP accumulation by 1 mM Cys after 1 h was 39% in S3 cells, 38% in DCT cells, and 28% in S1 cells. Again, reduction of uptake was less for the three other AAs. Pre-complexing of DDP with Cys for 16 h increased its uptake by 8- to 30-fold compared with native DDP, but markedly inhibited its toxicity. Thus, pre-complexing of DDP with Cys could not explain the reduced uptake of DDP, but could partly account for the reduction in cytotoxicity. Double-reciprocal Lineweaver-Burk plots of DDP concentration-versus-uptake rates at a constant concentration of Cys suggested that Cys competitively inhibited DDP uptake in S1 and DCT cells, and in a more complex fashion in S3 cells. CONCLUSIONS:We conclude that Cys, Met, N-acetylcysteine, and DL-homocysteine differentially inhibit DDP toxicity and uptake in cultured S1, S3, and DCT cells, and that the inhibition of uptake, as well as the complexation of DDP with Cys within the cell, may prevent toxicity. The structural element R-CH(NH2)-[CH2]1 2-S-R, which is common to all four molecules, may play a crucial role in blocking the transport of DDP, and could have future clinical applications.
journal_name
Cancer Chemother Pharmacoljournal_title
Cancer chemotherapy and pharmacologyauthors
Kröning R,Lichtenstein AK,Nagami GTdoi
10.1007/PL00006741keywords:
subject
Has Abstractpub_date
2000-01-01 00:00:00pages
43-9issue
1eissn
0344-5704issn
1432-0843journal_volume
45pub_type
杂志文章abstract:PURPOSE:In vitro and in vivo preclinical models have demonstrated synergistic activity when topoisomerase I and II inhibitors are administered sequentially. Topoisomerase I inhibitors increase topoisomerase II levels and increase cell kill induced by topoisomerase II poisons. We evaluated this hypothesis in a cohort of...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/s002800000211
更新日期:2001-01-01 00:00:00
abstract:PURPOSE:6-Gingerol, a major biochemical and pharmacological active ingredient of ginger, has shown anti-inflammatory and antitumor activities against various cancers. Searching for natural products with fewer side effects for developing adjunctive therapeutic options is necessary. METHODS:The effects of 6-gingerol on ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-019-03999-9
更新日期:2020-02-01 00:00:00
abstract:BACKGROUND:Aprepitant is a selective neurokinin-1 receptor antagonist that is effective for the prevention of nausea and vomiting caused by highly emetogenic chemotherapy. In vitro, aprepitant is a moderate inhibitor of the CYP3A4 enzyme, which is involved in the clearance of several chemotherapeutic agents. In this st...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1007/s00280-004-0946-3
更新日期:2005-06-01 00:00:00
abstract:PURPOSE:The majority of patients with low-grade non-Hodgkin's lymphoma (LGNHL) are in the older age groups and are thus less able to tolerate aggressive treatment. Chlorambucil, alone and in combination, has been widely accepted as the initial treatment of choice for many years. The availability of an anthracycline whi...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/s002800000124
更新日期:2000-01-01 00:00:00
abstract:PURPOSE:Capecitabine is an oral chemotherapeutic agent, already used in breast and colon cancer. Previous data showed encouraging results in the treatment of recurrent ovarian cancer. The aim of this study was to describe activity and toxicity of capecitabine in patients with platinum resistant or refractory ovarian ca...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章,多中心研究
doi:10.1007/s00280-009-0958-0
更新日期:2009-10-01 00:00:00
abstract:PURPOSE:The phosphoinositide-3-kinase (PI3K) pathway is the frequently altered in human cancer. This has led to the development and study of novel PI3K inhibitors for targeted therapy and also to overcome resistance to radiotherapy. METHOD:The anti-tumour effects of PI3K inhibitors (PI-828, PI-103 and PX-866) in terms...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-018-3746-x
更新日期:2019-03-01 00:00:00
abstract:OBJECTIVES:To assess the cardiovascular safety, tolerability and efficacy of high doses of granisetron for the treatment of nausea and vomiting in patients undergoing highly emetogenic chemotherapy. METHODS:Patients with histologically confirmed malignant disease were given an intravenous infusion of granisetron, 160 ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/s00280-003-0689-6
更新日期:2004-02-01 00:00:00
abstract::The effects of BCNU, CCNU, methyl-CCNU, streptozotocin, and chlorozotocin on calmodulin activity were studied in vitro and in vivo. Preincubation of BCNU, CCNU, and methyl-CCNU with calmodulin produced a concentration-dependent inhibition of in vitro calmodulin activity expressed as stimulation of cyclic nucleotide ph...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00434354
更新日期:1985-01-01 00:00:00
abstract:BACKGROUND:The pharmacokinetics and tissue distribution of photofrin II (PF) and its efficacy in sonodynamic therapy were studied in rats bearing AH130 solid tumors. MATERIALS AND METHODS:In order to find the optimum timing of the ultrasound exposure after administration of PF, the PF concentrations in plasma, skin, m...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-002-0523-6
更新日期:2003-02-01 00:00:00
abstract:PURPOSE:To investigate the activity and tolerance of pegylated liposomal doxorubicin in combination with vinorelbine in pretreated patients with metastatic breast cancer. PATIENTS AND TREATMENT:Thirty-six women with metastatic breast cancer were enrolled. The median age was 64 years, 80% of the patients had a performa...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章,多中心研究
doi:10.1007/s00280-006-0236-3
更新日期:2006-12-01 00:00:00
abstract::Saturable elimination of 5-FU is exhibited in rats during constant infusions. Over the range of 3-480 mg/m2/h, total-body clearance of 5-FU decreases from 600 ml/min/m2 to less than 90 ml/min/m2. Previously published values for catabolism of 5-FU by rat hepatocytes can be used to simulate the plasma concentrations of ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00434346
更新日期:1985-01-01 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:To assess the clinical activity and toxicity of a combination chemotherapy regimen of S-1 and cisplatin in patients with recurrent and/or metastatic head and neck squamous cell carcinoma (HNSCC) in a retrospective study. METHODS:A total of 49 patients were treated in an outpatient setting with S-1 80 mg/m(2) o...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-012-1933-8
更新日期:2012-10-01 00:00:00
abstract:BACKGROUND AND AIMS:oxaliplatin in combination with folinic acid (FA) and infusional 5-fluorouracil (5-FU) has shown significant anti-tumor activity in gastric cancer patients (FOLFOX). Previous studies have shown that gemcitabine (GEM), a new fluorinated anti-metabolite, enhances the individual anti-tumor activity of ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章,多中心研究
doi:10.1007/s00280-005-1024-1
更新日期:2005-12-01 00:00:00
abstract:INTRODUCTION:Monoclonal antibodies (MAbs) targeting epidermal growth factor receptor (EGFR) are effective in treatment of metastatic colorectal cancer (mCRC). Cetuximab, a chimeric MAb targets EGFR. Even with premedication, cetuximab can cause a hypersensitivity reaction (HSR). In case of severe HSR, further therapy wi...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-008-0831-6
更新日期:2009-05-01 00:00:00
abstract:BACKGROUND:Pre-clinical activity of SSG against melanoma and renal cancer has been identified recently although the drug's mechanism of action and activity against tumors of additional histological-types remain undefined. METHODS:The effects of SSG and SSG combination with other agents on DU145 human prostate carcinom...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-006-0378-3
更新日期:2007-08-01 00:00:00
abstract::A 62-year-old patient on long-term haemodialysis who developed an inoperable T2N3Mo squamous-cell carcinoma of the larynx was treated with weekly low-dose methotrexate (MTX) after failing to respond to radiotherapy. The patient was initially given one dose of 10 mg MTX (6 mg/m2) as a 1-h infusion, then he received thr...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s002800050528
更新日期:1996-01-01 00:00:00
abstract:PURPOSE:Stress conditions, such as glucose starvation and hypoxia, that induce glucose-regulated proteins (GRPs) in cells, are seen in most solid tumors. These conditions have been shown to cause cellular resistance to multiple anticancer drugs, such as etoposide, doxorubicin, and camptothecin. We examined the effect o...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s002800050945
更新日期:1999-01-01 00:00:00
abstract:PURPOSE:Our aim was to develop an optimal sampling strategy for the description of the pharmacokinetics of rubitecan and its active metabolite 9-aminocamptothecin (9-AC) for use in phase II/III studies with oral rubitecan administered in a daily times five schedule. METHODS:Concentration-time data of rubitecan and 9-A...
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/s00280-002-0516-5
更新日期:2002-12-01 00:00:00
abstract:PURPOSE:To further improve the prognosis of esophageal cancer patients, it is necessary to investigate new treatment strategies. The purposes of this study were to retrospectively assess the safety and efficacy of neoadjuvant chemoradiotherapy (CRT) with docetaxel/cisplatin/5-fluorouracil (DCF) (DCF-RT) in patients wit...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-018-03764-4
更新日期:2019-03-01 00:00:00
abstract::The cytotoxicity of cisplatin alone and in combination with topotecan (TPT) or SN-38, two novel topoisomerase I (topo I) inhibitors, was determined in a panel of eight well-characterized human solid-tumor cell lines. Interactions between cisplatin and these topo I inhibitors were investigated using three different adm...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s002800050744
更新日期:1998-01-01 00:00:00
abstract::Mitoxantrone, 1,4-dihydroxy-5,8-bis(((2-[(2-hydroxyethyl)amino]ethyl) amino))-9,10-anthracenedione dihydrochloride, a new antitumor agent was evaluated in nine cancer patients as part of a phase I trial. In general, the drug was well tolerated. Leukopenia was the dose-limiting toxic effect. Mild to moderate leukopenia...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00578556
更新日期:1980-01-01 00:00:00
abstract::Lanreotide (BIM 32014), a somatulin analogue, was found to be as effective as castration in a rat prostate tumor model. Therapeutic benefit was also demonstrated in the hormone-resistant phase of this tumor model. The activity of lanreotide may be due to a reduction in the levels of growth factors such as insulin grow...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/BF00685857
更新日期:1995-01-01 00:00:00
abstract::Unfortunately, the online published article has error in Figure 4. The correct Figure 4 is given here. ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章,已发布勘误
doi:10.1007/s00280-018-3590-z
更新日期:2018-06-01 00:00:00
abstract::To evaluate the value of beta-2-microglobulin as an indicator of acute and long-term cis-platinum-induced nephrotoxicity, 51Cr-EDTA clearance and serum concentration and urinary excretion of beta-2-microglobulin were measured in 18 patients treated with a regimen including cis-platinum. Before treatment all values wer...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00258126
更新日期:1985-01-01 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:An isolated pelvic perfusion technique using multiple agents was used both in patients with unresectable recurrent pelvic neoplasms and as a preoperative therapy for advanced pelvic malignancy. METHODS:The technique consisted of vascular occlusion via transfemoral balloon catheters, circulation and drug infusi...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s002800050918
更新日期:1999-01-01 00:00:00
abstract::The antimetabolite 1-beta-D-arabinofuranosyl-cytosine (ara-C) has proven to be one of the most effective agents available for the treatment of acute leukemia. While ara-C has been implicated as a potent inhibitor of mammalian cell DNA replication, the specific mechanism by which ara-C kills cells is not known. In this...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s002800050496
更新日期:1996-01-01 00:00:00
abstract:PURPOSE:To confirm the efficacy and toxicity of gemcitabine and S-1 combination chemotherapy when used as a first-line therapy in patients with unresectable pancreatic cancer. METHODS:Patients with locally advanced or metastatic or recurrent pancreatic adenocarcinoma, which was histologically or cytologically proven, ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章,多中心研究
doi:10.1007/s00280-009-1059-9
更新日期:2010-02-01 00:00:00
abstract::MKT-077 (1-ethyl-2-[[3-ethyl-5-(3-methylbenzothiazolin-2-yliden)]-4- oxothiazolidin-2-ylidenemethyl] pyridinium chloride), a novel rhodacyanine dye in phase I/II clinical trials, may provide a new approach to cancer therapy based on the accumulation in the mitochondria of the cells of certain carcinomas, for example, ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s002800050898
更新日期:1999-01-01 00:00:00