Abstract：
:The oxazaphosphorines cyclophosphamide (CP) and ifosfamide (IF) are alkylating agents that require bioactivation via cytochrome (CYP) P450 isoenzymes including CYP2C9 enzymes. The present study investigated CYP2C9 in regard to its allelic variants in 23 tumor samples (10 breast tumors, 1 breast tumor cell line, 5 brain tumors, 7 glioma cell lines) with restriction fragment length polymorphism polymerase chain reaction (RFLP-PCR). The mutant alleles of CYP2C9 were residue 144 (Arg (*1)/Cys (*2)), residue 358 (Tyr/Cys), residue 359 (Ile/Leu (*3)) and residue 417 (Gly/Asp). The frequencies of the CYP2C9*1, CYP2C9*2 and CYP2C9*3 alleles in the cancer samples examined were found to be 0.848, 0.152 and 0.043, respectively. No sample revealed a mutation at residue 358 or 417. Comparing breast with brain tumors, brain tumors seemed to reveal a higher incidence of heterozygotes (5/12 compared to 2/11) at residue 144 and, with regard to residue 359, a lower incidence of heterozygotes (0/12 compared to 2/11). In summary, our data indicate that in tumor material, as in healthy material, the same allelic variants of CYP2C9 occur. Compared to healthy tissue, tumor material seemed to reveal a higher incidence of the *2 allele, but a significant difference could not be established. Our results show that brain and breast tumor samples appeared to differ in their frequency of heterozygotes at residues 144 and 359. This might also have an impact on intratumoral oxazaphosphorine metabolism.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Knüpfer H,Stanitz D,Preiss Rsubject
Has Abstractpub_date
2006-01-01 00:00:00pages
299-305issue
1Aeissn
0250-7005issn
1791-7530journal_volume
26pub_type
杂志文章abstract：:The purpose of this study was to elucidate the behavior of signal transduction activity in rat and human carcinoma cells. Signal transduction activity was measured by the steady-state activity of the three enzymes involved in the conversion of 1-phosphatidylinositol (PI) to IP3, PI 4-kinase, PI 4-phosphate 5-kinase, a...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1996-11-01 00:00:00
abstract：:Screening for hereditary tumours provides a basis for secondary prevention. In 1985, the Foundation for the Detection of Hereditary Tumours was established in The Netherlands to coordinate screening in families with hereditary tumours. In the initial period of four years a large number of families were collected. Regi...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1990-03-01 00:00:00
abstract：AIM:After radical prostatectomy, PSA levels that reach near zero values in less than 14 days are associated with a favourable prognosis. The aim of this analysis was to investigate whether PSA also declines to near zero values after combined tele-brachytherapy. MATERIALS AND METHODS:Forty-one patient, treated with com...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2005-05-01 00:00:00
abstract：:Tricot et al have reported that the nucleoside analog tiazofurin can induce hematologic remissions in patients with chronic myelogenous leukemia in blast crisis (CML-BC). These reports prompted us to begin a derivative, phase II trial of tiazofurin in CML-BC to determine if the promising findings reported by these inv...
journal_title：Anticancer research
pub_type： 临床试验,杂志文章,多中心研究
doi：
更新日期：1996-11-01 00:00:00
abstract：:Combination therapies are used in the clinic to achieve cure, better efficacy and to circumvent resistant disease in patients. Initial assessment of the effect of such combinations, usually of two agents, is frequently performed using in vitro assays. In this review, we give a short summary of the types of analyses th...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：10.21873/anticanres.13472
更新日期：2019-07-01 00:00:00
abstract：BACKGROUND:This study evaluated the therapeutic efficacy of combining vascular disrupting agents with antiangiogenic agents. MATERIALS AND METHODS:Human clear cell renal carcinoma (Caki-1) tumors were established in nude mice. Treatments consisted of Avastin (2 mg/kg) administered twice a week; CA4P (100 mg/kg) or OXi...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2008-07-01 00:00:00
abstract：:Metastatic urothelial carcinoma is one of the most fatal urological malignancies. Cisplatin-based systemic chemotherapy is the standard treatment for metastatic urothelial carcinoma, and there is little evidence to support metastasectomy. The aims of the study were to evaluate the efficacy of metastasectomy and to inv...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.11140
更新日期：2016-10-01 00:00:00
abstract：:cis-Diamminedichloroplatinum(II) (CDDP) is the most active anticancer agent. It has been reported that intracellular accumulation of CDDP is an important step as a determinant for resistance to CDDP, which may be modulated by Na+, K(+)-ATPase activity. In this study, the significance of membrane Na+, K(+)-ATPase activ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-03-01 00:00:00
abstract：:We have established a hepatocarcinoma cell line (LFCl2A) that produces voluminous tumors when injected into syngeneic Commentary rats. We have previously shown that when these cells were transfected with an episomal vector expressing the antisense IGFI cDNA the transduced cells partly lost their tumorigenic properties...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2002-11-01 00:00:00
abstract：OBJECTIVE:The effectiveness and improvement in quality of life (QOL) of a long-acting formulation of octreotide (LAR) administration for cancer patients, with chronic loperamide-refractory diarrhea not attributed to medical therapy, were investigated. PATIENTS AND METHODS:Twenty-nine patients with chronic loperamide-r...
journal_title：Anticancer research
pub_type： 临床试验,杂志文章
doi：
更新日期：2006-05-01 00:00:00
abstract：:The effect of indomethacin, cisplatin and delta 12-prostaglandin J2 (PGJ2) on the inhibition of cell growth and DNA Synthesis (i.e. cell proliferation), was evaluated in vitro on human oral squamous carcinoma cells(SCC-25). The rank order of their inhibitory potency at 10(-5) M was delta 12-PGJ2 > cisplatin > indometh...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1997-11-01 00:00:00
abstract：BACKGROUND:Despite the large use of bevabizumab in the treatment of primary tumors of the brain, there is only limited experience with brain metastases (BM) and no experience in the treatment of previously untreated secondary brain lesions. PATIENTS AND METHODS:We treated patients with BM, not suitable for local treat...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2013-09-01 00:00:00
abstract：BACKGROUND:Lung cancer is the second leading cause of mortality among men and women in the U.S. Among different varieties of lung cancer, the non-small cell lung cancer (NSCLC) has the highest frequency comprising about 85% of cases. We evaluated 1-methyl-4-phenylpyridinium ion (MPP(+)) for cytotoxicity against human l...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2014-10-01 00:00:00
abstract：:A study on clinical and histological features of prognostic significance was performed in 45 patients with Ph1+ -CML who showed median survival of 36 months. The histological features were evaluated by morphometry of iliac crest biopsies. Among the variables correlated with prognosis, we eliminated those without prima...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1986-11-01 00:00:00
abstract：:Hepatocellular carcinoma (HCC) is a deadly malignant disease with extremely poor prognosis. Many therapeutic modalities have been proposed, but considerable uncertainty still remains about their effectiveness. Inositol hexaphosphate (IP6), a naturally occurring polyphosphorylated carbohydrate, has novel anti-cancer fu...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-11-01 00:00:00
abstract：BACKGROUND:A limited number of permanent ovarian carcinoma cell lines have been described so far and the majority of them have been derived from ovarian ascitic fluid cells taken from patients with serous ovarian carcinoma usually after chemotherapy treatment. MATERIALS AND METHODS:The cells for culture were obtained ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2000-09-01 00:00:00
abstract：OBJECTIVE:To analyze the prognostic value of DNA multiploidy in a prospective study on frozen surgical tissue samples from primary colorectal cancer. SUMMARY BACKGROUND DATA:Survival data from eleven prospective studies collectively comprising about thirteen hundred patients showed that aneuploidy correlated with a 5-...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-05-01 00:00:00
abstract：BACKGROUND/AIM:We have previously reported that alternate-day S-1 had comparable effects and milder adverse events than the respective consecutive-day regimen in head and neck cancer (HNC) patients. The aim of this study was to investigate the anticancer effects of both regimens and underlying mechanisms in vitro. MAT...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.13810
更新日期：2019-11-01 00:00:00
abstract：AIM:The purpose of this study was to identify patient-, facility-, disease-, and treatment-specific characteristics that increase mortality in patients with upper limb osteosarcoma. PATIENTS AND METHODS:The National Cancer Data Base (NCDB) was queried for bone cancer. With Cox regression, the demographic, facility, tu...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.13693
更新日期：2019-09-01 00:00:00
abstract：:The present study was undertaken to evaluate the significance of grooved nuclei as an additional diagnostic criterion for primary breast carcinoma as well as their association with tumor grade in cytologic material obtained by fine needle aspiration (FNA). Cytologic slides of 105 cases of breast carcinoma (89 ductal, ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1996-11-01 00:00:00
abstract：:2-4 Dinitrochlorobenzene (D.N.C.B.) is a synthetic primary allergenic molecule which has proved to have at least two useful clinical applications as regards neoplastic conditions. As a diagnostic measure, it serves in the detection of global alterations of cellular immunity. As a therapeutical measure, its epicutaneou...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：1989-11-01 00:00:00
abstract：AIM:We investigated the relationship between a new index considering the estimated working space and difficulty of robot-assisted radical prostatectomy (RARP) using our database. PATIENTS AND METHODS:Working height was calculated by the obstetric conjugate diameter minus the bladder and rectal wall thicknesses minus t...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2014-10-01 00:00:00
abstract：BACKGROUND/AIM:The purpose of this study was to consider appropriate application of liquid and re-biopsy through analysis of current status in practice. PATIENTS AND METHODS:We performed a retrospective analysis of 22 patients with epidermal growth factor receptor (EGFR) mutation-positive non-small cell lung cancer wh...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.12628
更新日期：2018-06-01 00:00:00
abstract：:The Feulgen-DNA content of squamous carcinoma cell nuclei from the human esophagus was assessed in punch biopsies from 47 untreated patients. Forty-four of the 47 biopsies (93.6%) demonstrated aneuploid cell populations, and the remaining 3 (6.4%) were non-diploid. Previous studies have demonstrated that in esophageal...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1989-05-01 00:00:00
abstract：BACKGROUND/AIM:This study aimed to identify the survival benefit of intrahepatic tumour control by hepatic arterial infusion chemotherapy (HAIC) in hepatocellular carcinoma (HCC) patients with portal vein tumour thrombus (PVTT) or extrahepatic metastasis. PATIENTS AND METHODS:Between 2010 and 2017, a total of 187 cons...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.13542
更新日期：2019-07-01 00:00:00
abstract：:Two metastasis-associated proteins, CD44v6 and NM23-H1, are expressed by normal lymphoid cells, the former serving as activation marker and the latter as a constitutive protein. CD44v6 is considered as a marker of poor prognosis of various hematological cancers but its expression was not demonstrated in childhood acut...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2001-01-01 00:00:00
abstract：BACKGROUND:The albumin-bilirubin (ALBI) grade assesses the severity of liver dysfunction in patients with hepatocellular carcinoma. Herein we investigated the prognostic significance of the combination of the ALBI grade with serum carbohydrate antigen 19-9 (CA 19-9) concentration, the most frequently used tumor marker ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.13260
更新日期：2019-03-01 00:00:00
abstract：BACKGROUND:Nogo-B was recently shown to be involved in proliferation, apoptosis and invasiveness of cancer cells, whereas its specific receptor (NgBR) was found to be up-regulated in estrogen receptor-α positive breast cancer. No data are currently available concerning their expression in non-small cell lung carcinomas...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2014-08-01 00:00:00
abstract：:In experimental and clinical phase II trials GnRH agonists were shown to possess antitumor activity in ovarian cancer. The outcome of prostatic cancer was also improved experimentally by a combination of cytostatic chemotherapy and GnRH analogs. Encouraged by these results, we administered micro-encapsulated triptorel...
journal_title：Anticancer research
pub_type： 临床试验,杂志文章
doi：
更新日期：1993-11-01 00:00:00
abstract：:Aromatase inhibitors (AIs) are important therapeutic drugs for postmenopausal women with hormone receptor-positive breast cancer. However, adverse effects of AIs such as arthralgia have been extensively reported. We performed a joint prospective, multi-institutional investigation to find out whether a low-dose and sho...
journal_title：Anticancer research
pub_type： 临床试验,杂志文章,多中心研究
doi：
更新日期：2012-06-01 00:00:00
