Abstract：
:The production of DNA interstrand crosslinks (ISC) by BCNU and other bifunctional alkylators and the effects of these drugs on the repair of radiation-induced DNA-single strand breaks (SSB) were studied in two human glioblastoma used to assess both DNA-ISCs and DNA-SSBs. BCNU-treated UWR2 and UWR3 cells showed a significant BCNU dose-dependent increase in radiation-induced DNA-SSBs at 6 hrs post-drug treatment, and at 100 microM BCNU DNA-ISC was completely masked in UWR2 cells. There was no enhancement of radiation-induced DNA-SSBs in both cell lines after treatment with cis-DDP, CHZ, or MNU. In the capillary clonogenic cell assay, UWR2 cells were 3.2 times more resistant than UWR3 cells; 0(6)-methylguanine-DNA methyltransferase activity was also 1.8 times higher in UWR2 than in UWR3. Our data suggest caution in the use of the standard alkaline elution technique (with 6 hrs between drug exposure and irradiation) to measure BCNU-induced DNA-ISC induction in highly BCNU-resistant cell lines. We provide evidence that the synergism between BCNU and radiation in the generation of DNA-SSBs is the result of low DNA-SSB repair capacity of the cells, and is further potentiated by the carbamoylating action of BCNU.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Ali-Osman F,Srivenugopal K,Berger MS,Stein DEsubject
Has Abstractpub_date
1990-05-01 00:00:00pages
677-82issue
3eissn
0250-7005issn
1791-7530journal_volume
10pub_type
杂志文章abstract：:F16 is a plant-derived pharmacologically active fraction extracted from Eurycoma longifolia Jack. Previously, we have reported that F16 inhibited the proliferation of MCF-7 human breast cancer cells by inducing apoptotic cell death while having some degree of cytoselectivity on a normal human breast cell line, MCF-10A...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2007-09-01 00:00:00
abstract：:The majority of human tumors display a high rate of glycolysis under aerobic conditions. This phenomenon was recognized approximately seven decades ago and is known as the Warburg effect. Several key enzymes required to maintain this high level of glucose metabolism are found in tumor cells. The effects of the glycoly...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：2013-07-01 00:00:00
abstract：:In this study, we investigated the cytotoxicities of flavone (F01), 3-hydroxyflavone (F02), 6- hydroxyflavone (F03), 7-hydroxyflavone (F04), 3,6-dihydroxyflavone (F05), 5,7-dihydroxyflavone (F06) and 5,6,7-trihydroxyflavone (F07) to human cancer cells including P- glycoprotein (Pgp)-expressing HCT15 cells and its mult...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1999-11-01 00:00:00
abstract：BACKGROUND:No investigation of amrubicin monotherapy in pre-treated advanced non-small cell lung cancer (NSCLC) patients has yet been reported. PATIENTS AND METHODS:The records were reviewed of NSCLC patients who had received amrubicin monotherapy between 2003 and 2007 with the following eligibility criteria:previousl...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2008-11-01 00:00:00
abstract：:Alteration of T-cell-associated signal transduction molecules has recently been implicated in immune suppression in tumour-bearing hosts. Here we report the immunoregulatory effects of human lactoferrin (LF) on zeta-chain expression in peripheral blood T lymphocytes from cervical cancer patients and healthy donors. By...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2002-05-01 00:00:00
abstract：:Renal cell carcinoma (RCC) is one of the few tumour types metastatic to the pancreas. In order to evaluate the outcome following resection of pancreatic metastases of RCC a retrospective review of surgical patients was performed. The initial histopathological staging, disease-free interval, surgical outcome and surviv...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2008-01-01 00:00:00
abstract：BACKGROUND:Because of the low chemosensitivity of gastric cancer to conventional antitumor agents, the role of adjuvant chemotherapy for patients with advanced gastric cancer is controversial. We have previously proposed the necessity to evaluate the appropriateness of particular adjuvant cancer chemotherapies in indiv...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2003-01-01 00:00:00
abstract：:The presence of steroid receptors in breast cancer is usually considered as a good indicator for responsiveness to antiestrogen treatment. However, not all estrogen-receptor (ER) positive tumors respond to tamoxifen, probably owing to the natural heterogeneity of breast cancer, which after tamoxifen treatment can resu...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1995-03-01 00:00:00
abstract：:The poor prognosis of advanced gastric carcinoma requires new therapeutic approaches. Among these, the specific activation of resting lymphocytes by bispecific antibodies may be promising. Here we describe the generation and function of a bispecific monoclonal antibody (bi-mab) with specificity for CD3 and for the tum...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1997-05-01 00:00:00
abstract：:The aim of this project was to study the kinetics of both Tl and Tc-99m MIBI in PBM by evaluating tumor to normal tissue ratio in early (E) images acquired within 1/2 hour and delayed (D) images acquired three hours following the i.v. injection of 3 mCi (111 MBq) of Tl and 20 mCi (740 MBq) of MIBI on 2 separate days i...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1997-05-01 00:00:00
abstract：BACKGROUND/AIM:Bevacizumab (BV) has been used for the treatment of recurrent glioblastoma. However, it also induces epithelial-mesenchymal transition (EMT) in glioblastoma cells, which compromises its efficacy. BATF2 (basic leucine zipper ATF-like transcription factor 2), a multi-target transcriptional repressor, has b...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.11821
更新日期：2017-08-01 00:00:00
abstract：:The p53 gene product suppresses both tumor cell growth and the cellular transformation process promoted by oncogenes. Although several genes are known to be positively regulated by p53, it is unclear how many gene expression events are involved in p53-mediated growth arrest and apoptosis. Two-dimensional gel electroph...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1994-11-01 00:00:00
abstract：:Glioblastomas are the most frequent and most malignant astrocytic gliomas. The epidermal growth factor receptor (EGFR) gene is the most frequently amplified and overexpressed in glioblastomas. The expression of bcl-2 and Bax in EGFR-antisense transfected and un-transfected glioblastoma cell line, U87E and U87V was stu...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1999-09-01 00:00:00
abstract：BACKGROUND:ProPSA has been suggested for the detection of preferentially aggressive prostate cancer (PCa). We report on the use of proPSA and free PSA to enhance preoperative staging and grading. PATIENTS AND METHODS:Serum samples from 376 PCa patients within the PSA range 1-25 microg/l who underwent radical prostatec...
journal_title：Anticancer research
pub_type： 临床试验,杂志文章
doi：
更新日期：2007-07-01 00:00:00
abstract：:Osteosarcoma of the jaw is a rare disease; we report two cases, one in which the primary osteosarcoma had occurred in the sacrum and ileum, the second at the mandible. Dissemination of osteosarcoma to other organs, especially early dissemination to the lung, is common, but metastasis to the jaw has only rarely been re...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2011-12-01 00:00:00
abstract：BACKGROUND/AIM:The main objective of the present study was to evaluate the significance of apoptosis in the Fletcher's risk classification for gastrointestinal stromal tumors (GISTs). MATERIALS AND METHODS:Apoptotic cells were identified by immunostaining for single-stranded DNA (ssDNA). We assigned each GIST to one o...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.12542
更新日期：2018-05-01 00:00:00
abstract：:We have previously reported that the partial estrogen antagonists, tamoxifen, clomiphene and nafoxidine, inhibited angiogenesis in vivo in a dose-related manner in the six-day old chick egg chorioallantoic membrane (CAM) assay. In the present study, we investigated the effect of basic fibroblast growth factor (bFGF) a...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1996-05-01 00:00:00
abstract：:In a prospective study comprising 447 women with endometrial carcinoma stages I-II, the prognostic significance of clinical and flow cytometric variables was evaluated in univariate and multivariate analyses. The parameters studied included age, uterine cavity depth, clinical stage, histopathologic grade, myometrial i...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1992-05-01 00:00:00
abstract：BACKGROUND:Experimental data at the molecular, cellular and organismal levels have implicated dietary components in cancer. Exposure to numerous growth factors, hormones and environmental agents, that can regulate signaling events, is involved in carcinogenesis. Research targets on gene-nutrient interactions may give u...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2007-01-01 00:00:00
abstract：:The etiologic variables involved in the increased incidence of colorectal carcinoma in patients with chronic ulcerative colitis have not been defined. Sulfasalazine is the most commonly used medication in the treatment of ulcerative colitis. It is not known whether the pharmacologic treatment of ulcerative colitis alt...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1989-11-01 00:00:00
abstract：:A 70-year-old man with a growing liver tumor had undergone subtotal gastrectomy with pancreaticoduodenectomy for gastric cancer (T4b P0 H0 N1, Stage IIIB) 30 months before admission to our hospital. Enhanced computed tomography revealed two hypervascular nodules in segments 4 and 8. After histological diagnosis of sma...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.12389
更新日期：2018-03-01 00:00:00
abstract：:We have developed a chemosensitivity assay of human tumors growing on collagen-sponge-gel-supported histoculture. This assay is thus termed the Histoculture Drug Response Assay (HDRA). In the HDRA, the end points of [3H]thymidine incorporation measured by histological autoradiography and tetrazolium dye reduction were...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1993-09-01 00:00:00
abstract：:Two different techniques [reduction of a tetrazolium derivative (MTT) and 3HTdR uptake assays] were compared in order to evaluate the cytotoxic effects of different chemotherapeutic agents in vitro. The cytotoxicities of Melphalan, hexamethylmelamine and seven derivatives, and daunorubicin were measured on P388D1 mous...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1990-01-01 00:00:00
abstract：:Uncertainty exists about the adequate treatment of adult patients with unresectable, primary, biopsy-proven glioblastoma multiforme (GBM), because the different options for this group of patients have not been evaluated in randomized clinical trials to date. Usually, these patients are lumped together in studies of ra...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：2005-11-01 00:00:00
abstract：:Oral mucositis is one of the main complications in non-surgical cancer treatments. It represents the major dose-limiting toxicity for some chemotherapeutic agents, for radiotherapy of the head and neck region and for some radiochemotherapy combined treatments. Many reviews and clinical studies have been published in o...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：2007-03-01 00:00:00
abstract：:Novel treatment strategies for cancer that are based on a more detailed understanding over the tumor biology are based on the latest new technology and are expected to improve the current treatment outcome for patients with cancer. However, many of these strategies still have one common and critical problem, being the...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：2014-08-01 00:00:00
abstract：BACKGROUND/AIM:A prospective study was designed to investigate the effects of anesthesia, particularly that of the one-lung ventilation procedure (OLV), on the expression of hypoxia-inducible factor 1alpha (HIF1alpha) in patients with lung carcinomas and pneumothorax. MATERIALS AND METHODS:The immunohistochemical expr...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2010-04-01 00:00:00
abstract：AIM:To assess progression-free survival (PFS) and overall survival (OS) in patients with advanced epithelial ovarian cancer receiving the combination of cisplatin (75 mg/m(2) i.v.) and cyclophosphamide (700 mg/m(2) i.v.) (CP), or the combination of paclitaxel (175 mg/m2) followed by cisplatin (75 mg/m2) (TP). PATIENTS...
journal_title：Anticancer research
pub_type： 杂志文章,随机对照试验
doi：
更新日期：2007-01-01 00:00:00
abstract：BACKGROUND:As a majority of ovarian cancer patients will ultimately develop recurrent disease, there is an urgent need for alternative or additional approaches in the treatment of this cancer. MATERIALS AND METHODS:The antitumour effect of i.p. administered cisplatin, liposomal muramyltripeptide phosphatidylethanulami...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2000-07-01 00:00:00
abstract：PURPOSE:The aim of this study was to determine the relationship between survival and value of molecular markers in the primary tumour in a group of patients with irresectable rectal cancer, treated with preoperative chemo-radiotherapy. MATERIALS AND METHODS:Immunohistochemistry for p53, p21, bcl-2 and Ki-67 was perfor...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2004-03-01 00:00:00
