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 alkylating drug response, we retrospectively reviewed the response of 13 patients with WD panNETs to alkylating agents in relation to MGMT status. We also studied MGMT expression in streptozocin resistance using panNET cell lines. RESULTS:The cohort included 54% of patients with and 46% without MGMT expression. Among these, 83.3% (5/6) of MGMT-negative cases showed a partial response to streptozocin. In contrast, only 14.2% (1/7) of MGMT-positive cases showed a partial response (P = 0.013). Induced expression of MGMT in BON1 cells (a panNET cell line with undetectable endogenous MGMT) produced streptozocin resistance. Knockdown of MGMT in QGP1 cells, which express MGMT endogenously, did not alter the response to streptozocin. CONCLUSIONS:We observed a relationship between MGMT status and streptozocin response in both patients and cell culture. Despite limited cases examined, high concordance of negative expression of MGMT and response to streptozocin treatment suggest that MGMT expression can be a potential biomarker for this treatment.
journal_name
Cancer Chemother Pharmacoljournal_title
Cancer chemotherapy and pharmacologyauthors
Hijioka S,Sakuma K,Aoki M,Mizuno N,Kuwahara T,Okuno N,Hara K,Yatabe Ydoi
10.1007/s00280-018-3700-ysubject
Has Abstractpub_date
2019-01-01 00:00:00pages
43-52issue
1eissn
0344-5704issn
1432-0843pii
10.1007/s00280-018-3700-yjournal_volume
83pub_type
杂志文章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 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: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 plasma pharmacokinetics of the anti-tumor antibiotic geldanamycin (GM: NSC 122750), a naturally occurring benzoquinoid ansamycin, was characterized in mice and a beagle dog. Concentrations of GM well above 0.1 microgram/ml, which was typically effective against neoplastic cell lines responsive to the drug in vitro...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00689048
更新日期:1995-01-01 00:00:00
abstract:BACKGROUND:TAP chemotherapy (paclitaxel, doxorubicin, and cisplatin) is effective for advanced and recurrent endometrial carcinoma, but has occasional severe toxicity. TEC chemotherapy (paclitaxel, epirubicin, and carboplatin) has been suggested to have less toxicity; however, the optimal dosage has yet to be determine...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-011-1638-4
更新日期:2011-12-01 00:00:00
abstract:PURPOSE:The epidermal growth factor receptor (EGFR) tyrosine kinase inhibitor gefitinib (ZD1839, Iressa) is approved for cancer treatment. We investigated whether gefitinib treatment can enhance human EGF (hEGF) uptake in vitro, thereby increasing the potential of hEGF as a vehicle for EGFR-targeted therapy. METHODS:W...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-013-2198-6
更新日期:2013-08-01 00:00:00
abstract:PURPOSE:Metronomic chemotherapy, at a minimally toxic dose and with a frequent schedule, is a potentially novel approach to the control of advanced cancer disease via a different mechanism from maximum tolerable doses chemotherapy. Taking advantage of the potential effectiveness of metronomic therapy, tegafur/uracil (U...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 临床试验,杂志文章
doi:10.1007/s00280-006-0377-4
更新日期:2007-08-01 00:00:00
abstract:BACKGROUND:Addition of carboplatin (C) to trastuzumab (T) and paclitaxel (P) improves the efficacy in HER2+ metastatic breast cancer (MBC). The aim of this phase-II study was to evaluate the efficacy and safety of this combination given weekly (3x) followed by a week off. The primary endpoint was: objective response ra...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-008-0709-7
更新日期:2008-11-01 00:00:00
abstract::Despite its rapid enzymatic inactivation and therefore limited activity in vivo, Gemcitabine is the standard drug for pancreatic cancer treatment. To protect the drug, and achieve passive tumor targeting, we developed a liposomal formulation of Gemcitabine, GemLip (Ø: 36 nm: 47% entrapment). Its anti-tumoral activity ...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-007-0482-z
更新日期:2008-03-01 00:00:00
abstract:PURPOSE:To investigate the effect of the antihistamine ketotifen on multidrug resistance in human breast cancer cells and doxorubicin toxicity in mice. METHODS:Clonogenicity assays were used to test the effect of ketotifen on human multidrug resistant breast cancer cell lines exposed to chemotherapeutic agents. Flow c...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-003-0600-5
更新日期:2003-05-01 00:00:00
abstract:PURPOSE:Some clinical studies on etoposide (Eto) have shown marked schedule dependency of the effect (starting at about 1 mg/l) and toxicity (over about 10 mg/l) whereas other studies have not confirmed these results. What are the conclusions we can draw from these inconsistent results when developing new low-dose (LD)...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-001-0418-y
更新日期:2002-04-01 00:00:00
abstract:PURPOSE:In the treatment of head and neck malignancy, cisplatin and 5-FU have been used the most as chemotherapeutic agents. The difference in efficacies of these is unclear and controversial. To investigate more effective schedule, we analyzed the cytotoxicity in different treatment sequence with two agents in vitro a...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-007-0658-6
更新日期:2008-10-01 00:00:00
abstract:PURPOSE:The ERCC1-XPF 5'-3' DNA endonuclease complex is involved in the nucleotide excision repair pathway and in the DNA inter-strand crosslink repair pathway, two key mechanisms modulating the activity of chemotherapeutic alkylating agents in cancer cells. Inhibitors of the interaction between ERCC1 and XPF can be us...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-020-04213-x
更新日期:2021-01-05 00:00:00
abstract:PURPOSE:The purpose of this study was to determine the potential utility of a novel algorithm to calculate individual GFR values in cancer patients. Based on carboplatin AUC measurements the algorithm-based values were compared with results related to other routinely used equations. METHODS:The association between mea...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-010-1537-0
更新日期:2011-09-01 00:00:00
abstract::The clinical formulation of leucovorin (5-CHO-FH4) is a mixture of diastereoisomers with markedly different pharmacologic properties. Comparatively little information is available concerning the cellular pharmacology of reduced folate stereoisomers, due largely to the difficulty in preparing sufficient quantities of t...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF02897229
更新日期:1990-01-01 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: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::The intestinal absorption of 6-mercaptopurine and its nucleoside 6-mercaptopurine riboside has been studied in the rat with the in situ dual luminal and vascular perfusion. 6-Mercaptopurine is an inactive prodrug that requires intestinal absorption, cellular uptake and intracellular anabolism for cytotoxic activity. V...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/BF00689198
更新日期:1995-01-01 00:00:00
abstract:BACKGROUND:Statins have potential antineoplastic properties via arrest of cell-cycle progression and induction of apoptosis. A previous study demonstrated in vitro and in vivo antineoplastic synergism between statins and gemcitabine. The present randomized, double-blinded, phase II trial compared the efficacy and safet...
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/s00280-013-2328-1
更新日期:2014-01-01 00:00:00
abstract:BACKGROUND:Cediranib (RECENTIN™) is an oral, highly potent VEGF inhibitor. This study evaluated the effect of food on the pharmacokinetics of cediranib and compared the administration of continual cediranib via two dosing strategies using this as a platform to investigate pharmacodynamic imaging biomarkers. METHODS:Si...
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/s00280-010-1534-3
更新日期:2011-09-01 00:00:00
abstract:PURPOSE:To evaluate the efficacy and safety of irinotecan as second-line treatment in patients with advanced colorectal cancer (ACC) failing or relapsing after 5-fluorouracil (5-FU) plus leucovorin (LV) standard chemotherapy. PATIENTS AND METHODS:Irinotecan was randomly administered in two different schedules (once ev...
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/s00280-003-0659-z
更新日期:2003-12-01 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
abstract:PURPOSE:Radiotherapy (RTx) has been considered as the treatment for locally advanced squamous cell carcinoma of the head and neck (SCCHN). However, with only conventional fractionation (Cfx), response rates are relatively low. In this study, we report the results of hyperfractionation (Hfx) RTx with concurrent docetaxe...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-006-0370-y
更新日期:2007-08-01 00:00:00
abstract:PURPOSE:Topotecan is widely used for refractory solid tumors but multi-drug resistance may occur due to tumor expression of ATP-binding cassette (ABC) transporters. Since erlotinib, an inhibitor of the epidermal growth factor receptor, also inhibits several ABC transporters, we performed a phase I study to evaluate the...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-014-2385-0
更新日期:2014-03-01 00:00:00
abstract:PURPOSE:To evaluate the plasma and cerebrospinal fluid (CSF) pharmacokinetics and CSF penetration of tasidotin and metabolites in a nonhuman primate model. METHODS:Tasidotin 0.75 mg/kg was administered intravenously. The plasma and CSF concentrations of tasidotin and its metabolites were determined. Pharmacokinetic pa...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-008-0875-7
更新日期:2009-07-01 00:00:00
abstract:PURPOSE:There is a need to find novel oestrogen receptor (ER) ligands that antagonize oestrogen action in the reproductive tissues and would therefore have therapeutic potential in oestrogen-dependent tumours. We tested novel ER ligands in both breast and endometrial cells to profile agonism/antagonism in these oestrog...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s002800000259
更新日期:2001-05-01 00:00:00
abstract:BACKGROUND:Very little is known about the pharmacokinetics of chemotherapeutic agents in patients also being treated with continuous ambulatory peritoneal dialysis. We sought to evaluate the pharmacokinetics of cisplatin and 5-fluorouracil in plasma and peritoneal dialysate in a patient being treated for esophageal ade...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-015-2939-9
更新日期:2016-02-01 00:00:00
abstract::Schedule dependency of bisantrene was evaluated in refractory metastatic breast cancer. Patients were randomly assigned to receive either a single (S) bolus injection of 300 mg/m2 (37 patients) or an injection of 80 mg/m2 daily for 5 days (D x 5) (35 patients) every 3-4 weeks after stratification by performance status...
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/BF00262287
更新日期:1986-01-01 00:00:00
abstract:BACKGROUND:Ovarian cancer is one of the most frequently fatal gynecological cancers because most cases are diagnosed at an advanced stage. Loss of growth control and a marked resistance to apoptosis are considered major mechanisms driving tumor progression. Little is known about the effect of various treatment regimens...
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/s00280-004-0993-9
更新日期:2005-10-01 00:00:00
abstract:PURPOSE:The blood-brain barrier discriminates the access of several molecules to the brain. This hampers the use of some drugs, as doxorubicin, potentially active for treatment of brain tumors. We explored the feasibility of active modification of the blood-brain barrier protection, by using morphine pretreatment, to a...
journal_title:Cancer chemotherapy and pharmacology
pub_type: 杂志文章
doi:10.1007/s00280-010-1429-3
更新日期:2011-06-01 00:00:00