Abstract：
BACKGROUND:The altered expression of multidrug resistance 1 (MDR1) contributes to various types of carcinogenesis and their disease progression. Hypermethylation of CpG islands located in the promoter regions is involved in gene silencing at the transcriptional level. The methylation status of MDR1 gene promoter was investigated in gastric cancer in relation to various clinicopathological features. PATIENTS AND METHODS:The methylation of the MDR1 promoter was estimated in both antral non-neoplastic mucosa and cancer lesions in 83 patients with gastric cancer using a methylation-specific PCR method. RESULTS:The methylation ratio (MR) of the cancer lesions (31.3 +/- 20.5) was significantly higher than that of non non-neoplastic mucosa (20.9 +/- 31.3, p = 0.0004). The MR was especially high in Lauren's intestinal cancer (p < 0.0001). A higher MR was also observed in more advanced stage (p = 0.005) and lymph vessel invasion-positive cases (p = 0.002). CONCLUSION:The promoter methylation of MDR1 seems to have a significant role in carcinogenesis and tumor progression in the stomach.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Tahara T,Arisawa T,Shibata T,Yamashita H,Yoshioka D,Hirata Isubject
Has Abstractpub_date
2009-01-01 00:00:00pages
337-41issue
1eissn
0250-7005issn
1791-7530journal_volume
29pub_type
杂志文章abstract：:An important variable in determining in vitro cell survival is the time interval between treatment and assay. One manifestation of radiation damage is the introduction of a division delay in which the post-radiation division rate is less than the pre-radiation division rate. We have examined the influence of length of...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1990-07-01 00:00:00
abstract：BACKGROUND/AIM:The matrix metalloproteinase (MMP) family of enzymes are in charge of degradation of various components of the extracellular matrix and their functional genetic polymorphisms may be associated with cancer susceptibility. The functional polymorphisms in the promoter region of MMP7 (A-181G and C-153T) have...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.11908
更新日期：2017-09-01 00:00:00
abstract：:The human breast carcinoma cell line MCF-7, propagated in a chemically defined medium, released alfa-1-antitrypsin and alfa-1-antichymotrypsin to the medium under the influence of estradiol. Furthermore, an estrogen-independent release of antigenic material crossreacting with alfa-1-lipoprotein was demonstrated. In th...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1988-01-01 00:00:00
abstract：:The effect of ionic strength on aclarubicin - DNA complexes was studied in comparison with its effect on daunorubicin - or doxorubicin - DNA complexes, using the spectrophotometric method. The hypochromic shift of aclarubicin, induced by its binding to native DNA, decreased to a lesser extent by the addition of Na+ th...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1988-05-01 00:00:00
abstract：UNLABELLED:We investigated the predictive value of the protein S100 as a tumor-marker in the post-surgical follow-up staging of patients with High Risk melanomas (Clark Levels IV/V, Thickness > 0.75 mm). METHODS:In 51 follow-up studies, performed in 50 patients, serum concentrations of the protein S100 were measured a...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1999-07-01 00:00:00
abstract：:Exposure of cells derived from human mammary carcinoma cell line, MaTu, to daunorubicin started a selection process which reproducibly gave rise to sublines with different phenotypes. One subline exhibited a fibroblast-like morphology (MaTu/c7), while others retained the epitheloid phenotype of the parental cells (MaT...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1999-11-01 00:00:00
abstract：:K-ras-NIH3T3 cells were more invasive than NIH3T3 cells in a chemotactic invasion assay. Conophylline, a new vinca alkaloid isolated as a ras function inhibitor, inhibited the invasion of K-ras-NIH3T3 cells, while it showed no effect on NIH3T3 cells. Conophylline did not increase expression of fibronectin but induced ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1996-01-01 00:00:00
abstract：BACKGROUND:Several studies have supported the hypothesis that the concept of immuno-surveillance would not be effective in cancer patients. One reason for suppression of antitumor immunity may be attributed to immune impairment of T-lymphocytes, which extends beyond the tumor-microenvironment and might effect the perip...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2008-03-01 00:00:00
abstract：:Iron salts supplemented in a basal ratio, were fed to young Sprague-Dawley male rats for prolonged periods and the frequency of colonic adenocarcinomas induced by repeated s.c. injection of 1,2-dimethylhydrazine (DMH) at unit base doses of 9.0 mg/kg, ascertained and compared with the respective controls. In a series e...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1993-11-01 00:00:00
abstract：BACKGROUND:The rearrangement of actin cytoskeleton is being increasingly considered a marker of cancer cell activity, but the fine structure and remodeling of microfilaments within tumor tissue still remains unclear. MATERIALS AND METHODS:We used the recently introduced silicon-rhodamine (SiR)-actin dye to visualize e...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.11100
更新日期：2016-10-01 00:00:00
abstract：BACKGROUND:Extraskeletal myxoid chondrosarcoma (EMC) is a rare malignant soft-tissue tumor and often shows extracompartmental tumoral invasion. The aim of our study was to investigate the clinical features, especially extracompartmental tumoral invasion (ETI) of EMC. PATIENTS AND METHODS:A total of 35 operative patien...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.14039
更新日期：2020-02-01 00:00:00
abstract：:In the clinical setting, administration of high daily or bolus doses of vitamin D is often solely based on 25-hydroxyvitamin D [25(OH)D] testing. This review summarizes the evidence of the effect of vitamin D on cardiovascular disease (CVD). Meta-analyses of randomized controlled trials (RCTs) have demonstrated that C...
journal_title：Anticancer research
pub_type： 杂志文章,meta分析,评审
doi：10.21873/anticanres.13643
更新日期：2019-09-01 00:00:00
abstract：:Ten patients with neuroblastoma were treated with a standard pulsed administration schedule of cis-platinum and etoposide (VP16-213). Two patients are experiencing good partial responses lasting over 8 months. One other patient had a partial response. Toxicity was mild and limited to high frequency hearing loss, tempo...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1986-11-01 00:00:00
abstract：BACKGROUND:Certain viruses, notably human papillomavirus (HPV), cytomegalovirus (CMV), herpes simplex virus (HSV) and Epstein-Barr virus (EBV), are known to produce tumors in animals and cell transformation in vitro and they have been implicated in the pathogenesis of human cancers. All these viruses are also known to ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2000-09-01 00:00:00
abstract：:Hormone-dependent (HD) mammary tumors can be induced in mice and rats either by endocrine manipulations or by treatment with carcinogens. The tumors metastasize at a low frequency which may be due to immunogenic properties and does not exclude that the tumors are malignant. Hormone deprival may lead to tumor regressio...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：1983-07-01 00:00:00
abstract：BACKGROUND:We used non-linear kernel discriminant analysis (KDA) to predict the outcome of 134 axillary node-negative primary breast cancer patients not treated with adjuvant therapy in a non censored database. MATERIAL:Posterior probabilities of relapse at 5 years were estimated using probabilistic neural networks (P...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2000-05-01 00:00:00
abstract：:The present study was undertaken to evaluate the effect of phagocytosis of killed yeast on the induction of apoptosis in human metastatic breast cancer cells (MCF-7 and ZR-75-1) and non-metastatic breast cancer cells (HCC70). Heat-killed Saccharomyces cerevisiae, baker's and brewer's yeast, was cultured with cancer ce...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2004-05-01 00:00:00
abstract：BACKGROUND/AIM:Epidermal growth factor receptor (EGFR) mutation testing is standard-of-care for advanced non-small cell lung cancer (NSCLC). Outcomes of second-/third-line compared to first-line tyrosine kinase inhibitors (TKIs) have shown conflicting results. We investigated utilization of molecular diagnostics and th...
journal_title：Anticancer research
pub_type： 杂志文章,多中心研究
doi：10.21873/anticanres.12235
更新日期：2018-01-01 00:00:00
abstract：:Recently we demonstrated that several flavonoids can inhibit the proliferation of certain human thyroid cancer cell lines. Among the flavonoids tested, apigenin and luteolin are the most effective inhibitors of these tumor cell lines. In the present study, we investigated the signal transduction mechanism associated w...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1999-09-01 00:00:00
abstract：:Some new phenothiazines have been synthesized on the basis of previous studies. The anticancer activity of "half-mustard type" phenothiazines was investigated on sixty different cancer cell lines in vitro. The percentage of growth (PG), 50% inhibition of growth (GI50), the tumor growth inhibition (TGI) and the concent...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-01-01 00:00:00
abstract：:The major purpose of this study was to define if the immunosuppressive effect of a transforming growth factor-beta (TGF-beta)-producing autologous tumor vaccine can be abrogated and rendered immunogenic by suppressing its TGF-beta secretion with antisense strategy. In this study, using a TGF-beta antisense gene modifi...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2000-05-01 00:00:00
abstract：BACKGROUND:Extracts from Viscum album L. (VAL), which are one of the most widely used alternative cancer therapies in Europe, have been recognised to induce apoptosis. A clinically relevant direct anti-tumour effect might be induced only by their intratumoural or intrapleural injection, and thus effectiveness is highly...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1999-01-01 00:00:00
abstract：AIM:We performed a pharmacokinetic phase I trial of the combination of S-1 granules and nedaplatin for head and neck squamous cell carcinoma (HNSCC). PATIENTS AND METHODS:Patients were treated with both nedaplatin on day 1 at a dose starting at 80 mg/m(2) (level 1) escalating up to 90 mg/m(2) (level 2), and S-1 granul...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2013-12-01 00:00:00
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 signi...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1990-05-01 00:00:00
abstract：:Transforming growth factor beta type II receptor (TGFbeta-IIR) has been found to be altered in primary gastrointestinal carcinomas. So far relatively few facts are known about the expression of TGFbeta-IIR in primary gastric cancer. Therefore, in the present study, TGFbeta-IIR expression was analyzed in 130 primary ga...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2002-07-01 00:00:00
abstract：:The quest for immunotherapies against cancer has been ongoing for many years, and a greater understanding of the normal mechanisms involved in developing immune responses has now led to clinically effective therapies. With the licensing of Ipilimumab and Sipuleucel-T, immunotherapeutic strategies are taking their plac...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：2012-07-01 00:00:00
abstract：:Although cancer belongs to one of the leading causes of death around the world, fortunately studies have shown that tumor cells have various targets that are susceptible to attack. Interestingly, tumor cells are comprised of cellular membranes, which are altered in chemical composition relative to non-neoplastic cells...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：2015-02-01 00:00:00
abstract：:Glioblastoma multiforme (GBM) is the most aggressive intracranial tumor characterized with infaust prognosis. Despite advances in neurosurgical and radiotherapeutic techniques and chemotherapy, the median overall survival ranges between 12-15 months from diagnosis. The main cause of treatment failure is considered the...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.11422
更新日期：2017-03-01 00:00:00
abstract：BACKGROUND/AIM:The aim of this study was to evaluate the impact of laparoscopic gastrectomy (LG) for gastric cancer on long-term survival in patients with postoperative infectious complications (PIC). PATIENTS AND METHODS:A total of 608 patients who underwent gastrectomy were classified into two groups based on the su...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.14740
更新日期：2020-12-01 00:00:00
abstract：:In this immunohistochemical study we investigated the expression of Bcl-2 and Bax apoptosis related proteins in node-negative breast carcinomas. The results were correlated with the recurrence rate of the patients. In order to avoid the influence of the most important tumor prognostic parameters we selected two groups...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1997-07-01 00:00:00
