Abstract:
:This report describes the physicochemical and pharmacokinetic parameters of seven chlorambucil esters, which were compared with those of chlorambucil. These esters were designed as chlorambucil prodrugs to increase the brain penetration and concentration vs time profile of chlorambucil within the CNS for potential treatment of brain tumors. They include four aliphatic esters from one to eight carbon chains in length (chlorambucil-methyl, -propyl, -hexyl, and -octyl esters) and three aromatic esters, including the phenylmethyl, phenylethyl and prednisolone ester of chlorambucil, prednimustine. The esters were lipophilic and possessed log octanol:water partition coefficients (log P values) that ranged from 4.05 to greater than 8.0. All retained alkylating activity, which was reduced compared with that of chlorambucil. In addition, all were metabolized in vivo in the rat to yield chlorambucil alone. Measurement of the in vitro rate of ester hydrolysis of the compounds to yield chlorambucil in rat plasma demonstrated that short-chain aliphatic and aromatic chlorambucil esters were rapidly broken down to their parent compound. The plasma half-lives of the compounds increased with the increasing length and complexity of their ester chain. This may have been related to an increase in the binding of the long-chain esters to plasma proteins, protecting the ester from nonspecific plasma esterases, and to a reduced affinity of plasma esterases to these esters. Pharmacokinetic analysis of chlorambucil-hexyl, -octyl, and -prednisolone esters by HPLC demonstrated that following their intravenous administration in the rat (in doses equivalent to equimolar chlorambucil, 10 mg/kg), they yielded only low concentrations of active compounds in plasma and brain. The brain:plasma ratio of these was low and similar to that of chlorambucil, and no ester demonstrated anticancer activity superior to that obtained after the administration of equimolar chlorambucil (5 mg/kg i.v., days 1-5) against brain-sequestered Walker 256 carcinosarcoma in the rat.
journal_name
Cancer Chemother Pharmacoljournal_title
Cancer chemotherapy and pharmacologyauthors
Greig NH,Genka S,Daly EM,Sweeney DJ,Rapoport SIdoi
10.1007/BF00686229subject
Has Abstractpub_date
1990-01-01 00:00:00pages
311-9issue
5eissn
0344-5704issn
1432-0843journal_volume
25pub_type
杂志文章abstract:PURPOSE:Differences in efficacy and toxicity between UDP-glucuronosyltransferase (UGT) 1A1*1/*1 and *1/*6 or *1/*28 genotypes remain unclear in Japanese patients. METHODS:Patients with advanced colorectal cancer who received irinotecan combined with 5-fluorouracil plus l-leucovorin (FOLFIRI) as first-line therapy were...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-010-1485-8
更新日期:2011-08-01 00:00:00
abstract:PURPOSE:Normal white blood cell counts (WBC) are unknown in children with acute lymphoblastic leukemia (ALL). Accordingly, 6-mercaptopurine (6MP) and methotrexate (MTX) maintenance therapy is adjusted by a common WBC target of 1.5-3.0 × 109/L. Consequently, the absolute degree of myelosuppression is unknown for the ind...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-016-3151-2
更新日期:2016-11-01 00:00:00
abstract:PURPOSE:While the target of many anticancer agents has been identified, the processes leading to killing of the cancer cells and the molecular basis of resistance to the drugs are not well understood. We used human gastrointestinal cancer cell lines and examined how anticancer agents induced cell killing and how the ch...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s002800050861
更新日期:1999-01-01 00:00:00
abstract::The purpose of this study was to assess the efficacy of verapamil (20 microM) and hyperthermia (42 degrees C) as modifiers of mitomycin C (MMC), used at different concentrations, in inhibiting the growth of human gastric adenocarcinoma (AGS) cells. Combined verapamil and hyperthermia treatment resulted in a significan...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00685086
更新日期:1994-01-01 00:00:00
abstract::Of 54 patients with advanced breast cancer, 21/37 (57%) with oestrogen receptor-positive (ER+) tumours and 11/17 (65%) with oestrogen receptor-negative (ER-) tumours responded to cytotoxic chemotherapy. These data and a survey of the literature indicate that oestrogen receptor status is not a determinant of response t...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00255457
更新日期:1980-01-01 00:00:00
abstract:PURPOSE:There is considerable current interest in the use of thalidomide as a single agent or in combination with drugs such as cyclophosphamide in the treatment of multiple myeloma and other cancers. Our previous work has shown that thalidomide potentiates the antitumour activity of both cyclophosphamide and 5,6-dimet...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-003-0753-2
更新日期:2004-05-01 00:00:00
abstract::Lung cancer is the leading cause of cancer death in the world. Recently, targeted therapy and anti-programmed cell death receptor 1 (PD-1) and anti-programmed cell death ligand 1 (PD-L1) immunotherapy have made great progress in treatment of lung cancer. However, responses to these therapies are variable, influenced b...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章,评审
doi:10.1007/s00280-018-3586-8
更新日期:2018-08-01 00:00:00
abstract::Topotecan is a novel semisynthetic derivative of the anticancer agent camptothecin and inhibits the intranuclear enzyme topoisomerase I. The lactone structure of topotecan, which is in equilibrium with the inactive ring-opened hydroxy acid, is essential for this activity. We performed a pharmacokinetics study as part ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/s002800050479
更新日期:1996-01-01 00:00:00
abstract::The orally bioavailable matrix metalloproteinase inhibitor MMI270 reduces tumour growth metastasis in preclinical models. We assessed the feasibility and pharmacokinetic interactions of combining MMI270 with 5-fluorouracil (5-FU) and folinic acid (FA). Entered into the study were 33 patients with advanced colorectal c...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/s00280-004-0856-4
更新日期:2005-01-01 00:00:00
abstract:PURPOSE:To compare the in vitro cytotoxicity of nedaplatin, an investigational platinum analog, with that of the standard platinum agents, cisplatin and carboplatin, against fresh human, epithelial ovarian cancers. METHODS:The Hamburger-Salmon human tumor colony-forming assay (HTCA) was used to measure the chemosensit...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s002800050604
更新日期:1997-01-01 00:00:00
abstract:PURPOSE:To compare the response rates, toxicities and survival durations of elderly patients (70 years of age or more) with those of younger patients (less than 70 years of age) with non-small-cell lung cancer (NSCLC) treated with cisplatin-based chemotherapy. PATIENTS AND METHODS:We analyzed retrospectively the data ...
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/s002800050689
更新日期:1997-01-01 00:00:00
abstract::We obtained evidence that the cytotoxic effect of 5-fluorouracil (5-FU) is augmented when the drug is given in combination with hyperthermia (HYP) and dipyridamole (DP). Nontoxic levels of DP enhanced the combined cytotoxicity of 5-FU and HYP against B16 melanoma and human tumor cells in vitro as measured by the succi...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00685941
更新日期:1992-01-01 00:00:00
abstract:PURPOSE:Although cisplatin is the drug of choice in treating lung cancer patients, relapse and resistance is a common drawback to its clinical effectiveness. Based on cisplatin's reported ability to interfere with numerous cellular components, including mitochondria, we probed alterations in metabolism in cisplatin-res...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-013-2366-8
更新日期:2014-02-01 00:00:00
abstract:PURPOSE:HER2-targeted therapy with trastuzumab and (CF/X) prolonged overall survival (OS) in metastatic HER2neu+ gastric carcinoma (GC). Lapatinib inhibits both EGFR and HER2neu. We investigated the efficacy and safety of lapatinib with epirubicin (E) + CF/X in GC according to HER2neu and EGFR status. METHODS:Tumors f...
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/s00280-018-3667-8
更新日期:2018-10-01 00:00:00
abstract:PURPOSE:Evasion to new treatments of advanced melanoma is still associated with a poor prognosis. Choosing the best combination of agents that can bypass resistance mechanisms remains a challenge. Sphaeropsidin A (Sph A) is a fungal bioactive secondary metabolite previously shown to force melanoma cells to undergo apop...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-017-3293-x
更新日期:2017-05-01 00:00:00
abstract:PURPOSE:Anti-tumor activity can often be enhanced with combination therapy in managing patients with metastatic cancer. However, dose sequence and schedule of delivery can alter the pharmacokinetics, toxicity, and anti-tumor response. Therefore, attention to drug-drug interactions which may be sequence or schedule-depe...
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/s00280-004-0925-8
更新日期:2005-08-01 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:To establish the cytochrome P450 (CYP) isozymes involved in the metabolism of the alkylating agent, thiotepa, to the pharmacologically active metabolite, TEPA. METHODS:In vitro chemical inhibition studies were conducted by incubating thiotepa and pooled human hepatic microsomes in the presence of known inhibit...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-002-0453-3
更新日期:2002-06-01 00:00:00
abstract:PURPOSE:Cyclophosphamide is one of the most frequently used agents in the neoadjuvant, adjuvant, and high-dose chemotherapeutic treatment of breast cancers. Preclinical models indicate that cellular sensitivity to cyclophosphamide and other oxazaphosphorines, e.g., ifosfamide, is inversely related to the cellular conte...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s002800000208
更新日期:2001-03-01 00:00:00
abstract:PURPOSE:Imatinib is an inhibitor of the Bcr-Abl tyrosine kinase; however, resistance is common. Flavopiridol, a cyclin-dependent kinase (CDK) inhibitor, down-regulates short-lived anti-apoptotic proteins via inhibition of transcription. In preclinical studies, flavopiridol synergizes with imatinib to induce apoptosis. ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-012-1839-5
更新日期:2012-06-01 00:00:00
abstract:PURPOSE:The dolastatins are a class of naturally occurring cytotoxic peptides which function by inhibiting microtubule assembly and tubulin polymerization. Cemadotin is a synthetic analogue of dolastatin 15 with potent antiproliferative and preclinical antitumor activity. This report describes a phase I study to evalua...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/s002800000152
更新日期:2000-01-01 00:00:00
abstract:PURPOSE:Oxaliplatin (OHP) in combination with 5-fluorouracil/leucovorin (FOLFOX) is clinically used as frontline therapy in patients with advanced colorectal carcinoma (CRC), with response rates ranging from 46 to 71%. This combination is now considered a standard treatment for metastatic CRC and also in the post-opera...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-010-1476-9
更新日期:2011-04-01 00:00:00
abstract:BACKGROUND:Cetuximab and panitumumab are chimeric and fully human monoclonal antibodies, respectively, against epidermal growth factor receptor used in the treatment of metastatic colorectal cancer (mCRC). Incidence of documented infusion reaction (IR) is more common with cetuximab (all grades [g]: 15-21%, g 3/4: 2-5%)...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-009-1009-6
更新日期:2009-12-01 00:00:00
abstract::Between December 1982 and November 1990, 31 patients with advanced urothelial carcinoma were treated with one of two combination chemotherapy regimens. A total of 20 patients were treated with 3 mg/m2 mitomycin C and 300 mg/m2 cyclophosphamide given intravenously every 10-14 days and with 180 mg/m2 5-fluorouracil (5-F...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/BF00686944
更新日期:1992-01-01 00:00:00
abstract::The consequences at the cardiac level of adriamycin treatment alone or in association with the cardiac glycoside beta-methyldigoxin, were evaluated with reference to the PEP/LVET ratio, heart rate, and minimum blood pressure. The variation usually seen in the PEP/LVET ratio when adriamycin is administered alone was no...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00258290
更新日期:1979-01-01 00:00:00
abstract:PURPOSE:The chimeric protein BCR-ABL, a constitutively active protein-tyrosine kinase, triggers downstream signalling proteins, such as STAT3, ultimately resulting in the survival of myeloid progenitors in BCR-ABL-positive leukemias. Here, we evaluated the effect of LLL-3, an inhibitor of STAT3 activity, on cell viabil...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-009-1109-3
更新日期:2010-05-01 00:00:00
abstract:PURPOSE:The absorption, distribution, metabolism, and excretion of the hedgehog pathway inhibitor sonidegib (LDE225) were determined in healthy male subjects. METHODS:Six subjects received a single oral dose of 800 mg ¹⁴C-sonidegib (74 kBq, 2.0 µCi) under fasting conditions. Blood, plasma, urine, and fecal samples wer...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-014-2468-y
更新日期:2014-07-01 00:00:00
abstract:BACKGROUND:Chemoresistance is a common problem for cancer treatment worldwide. Circulating exosomal microRNAs (miRNAs) have been considered as promising biomarkers of cancers. However, few studies have assessed the relationship between serum/plasma exosomal microRNAs and chemoresistance in colorectal cancer (CRC). MET...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-019-03867-6
更新日期:2019-08-01 00:00:00
abstract:PURPOSE:To investigate the synergistic cytotoxicity of TRAIL in combination with chemotherapeutic agents in A549 cell lines, we systematically evaluated the cytotoxicity of TRAIL alone and TRAIL in combination with cisplatin, paclitaxel (Taxol) or actinomycin D in A549 cell lines in vitro and in vivo, and whether the s...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-004-0867-1
更新日期:2005-02-01 00:00:00
abstract::We have previously demonstrated that overexpression of dihydrodiol dehydrogenase isoform 1 (DDH1) or DDH2 leads to the induction of drug resistance to platinum based drugs in human ovarian, lung, cervical and germ cell tumor cell lines. DDH belongs to a family of aldoketo reductases that are involved in the detoxifica...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-007-0554-0
更新日期:2008-05-01 00:00:00