Abstract：
BACKGROUND:Genetic polymorphisms of carcinogen-metabolizing enzyme genes have been associated with the risk of oral squamous cell carcinoma and oral leukoplakia. The overexpression of p53 protein is the most common genetic alteration in head and neck cancer. In the present study the combined or isolated presence of glutathione S-transferases GSTM1, GSTT1, GSTP1, and the cytochrome P450 oxidases CYP1A1 and CYP2E1 polymorphisms and oral leukoplakia development in a Brazilian sample of individuals was investigated, together with the effect of these polymorphisms on p53 overexpression in the lesions. PATIENTS AND METHODS:The GSTM1, GSTT1 and CYP1A1 genotypes of 80 smoking patients with oral leukoplakia and 80 age and gender matched control subjects were studied by polymerase chain reaction (PCR), and CYP2E1 and GSTP1 polymorphisms by PCR and digestion. Immunohistochemical reactions were performed for p53 staining in paraffin embedded histological sections of oral leukoplakia lesions. RESULTS:The GSTM1 null genotype was associated with an increased risk of oral leukoplakia development, independently of the other genes (OR 2.10). The simultaneous presence of GSTM1 and GSTT1 null genotypes was associated with an increased risk of oral leukoplakia development, independently of the other genes (OR 4.36). The oral leukoplakia lesions of patients with the GSTT1 null genotype showed a 6-fold increased risk of p53 overexpression (OR 6.61). CONCLUSION:A positive association exists between the isolated or combined null genotype of GSTM1 and GSTT1 and oral leukoplakia development and the null GSTT1 genotype shows increased risk of p53 overexpression, in oral leukoplakia.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Duarte EC,Ribeiro DC,Gomez MV,Ramos-Jorge ML,Gomez RSsubject
Has Abstractpub_date
2008-03-01 00:00:00pages
1101-6issue
2Aeissn
0250-7005issn
1791-7530journal_volume
28pub_type
杂志文章abstract：BACKGROUND:Tumour stage and the appropriate course of treatment in patients with breast cancer are primarily characterized by the state of metastasis in the axillary lymph nodes. In recent years, substantial research has focused on the prediction of lymph node status based on various pathological and molecular markers ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2013-09-01 00:00:00
abstract：BACKGROUND/AIM:Non-pegylated liposomal doxorubicin (NPLD) has demonstrated antitumour activity equivalent to conventional doxorubicin and a significantly lower risk of cardiotoxicity. This phase II trial was performed to evaluate the activity and the safety of NPLD and ifosfamide combination in patients with metastatic...
journal_title：Anticancer research
pub_type： 杂志文章,多中心研究
doi：
更新日期：2015-01-01 00:00:00
abstract：:A pharmacokinetic study on cis-(glycolato-O,O)/ (4R,5R)-4,5-bis(aminomethyl)-1,3-dioxolane-2-spiro-1'- cyclohexane]platinum(II) (SKI 2032R) was performed in dogs. A single dose of 2.0 mg/kg of SKI 2032R was administered i.v. bolus to three beagle dogs. Plasma samples were analyzed for platinum by flameless atomic abso...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1996-05-01 00:00:00
abstract：:In the colon of F344 rats treated with 2 x 15 mg/kg body weight of azoxymethane (AOM), the density (number of lesions/cm2/rat) of flat aberrant crypt foci (ACF) was 13-fold higher (p < 0.05) in the surface area of mucosa immediately adjacent to lymphoid follicles compared with the density of these lesions in the rest ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2006-05-01 00:00:00
abstract：BACKGROUND/AIM:Secretory phospholipase-A2 (sPLA2) mediates growth and proliferation of human esophageal adenocarcinoma cells (HEAC). Two major molecular pathways of cancer growth regulation include extracellular signal-regulated kinase 1/2 (ERK 1/2) and protein kinase-B (AKT). Phospholipase enzymes have been demonstrat...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2013-04-01 00:00:00
abstract：BACKGROUND:The aim of this study was to analyse the Epstein-Barr virus (EBV) latency by detecting the EBV-associated latent small nuclear RNAs (EBER), in a group of biopsies from Spanish patients with diagnosed nasopharyngeal carcinoma (NPC). MATERIALS AND METHODS:NPC paraffin samples with the presence of EBV demonstr...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2001-11-01 00:00:00
abstract：BACKGROUND:The combined effects of Human papillomavirus (HPV) and Herpes simplex type 1 (HSV-1) infections and their effects on cancer cell radioresistance are unexplored. MATERIALS AND METHODS:An HPV16-positive hypopharyngeal carcinoma cell line (UD-SCC-2) was infected with wt-HSV-1 at low multiplicity of infection (...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2016-02-01 00:00:00
abstract：BACKGROUND/AIM:Malignant mesothelioma is a rare malignancy with limited therapeutic options. Exome-based next-generation sequencing (NGS) techniques may direct the future of molecular targeting and improve systemic therapies for patients with mesothelioma. MATERIALS AND METHODS:Eleven patients with NGS testing were se...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2016-05-01 00:00:00
abstract：:Bax, bcl-2 and their homologues regulate a distal step in an evolutionary very well conserved pathway of apoptotic cell death. It plays a crucial role in the balance between proliferation rate and cell viability. Thus in the last years the attention of the scientific community towards these proteins has remarkably inc...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1999-01-01 00:00:00
abstract：:Due to improved life expectancy and the increase in incidence of breast cancer in old age, ever more older women are developing this disease. Although there is only limited evidence-based data from randomized trials on the treatment, older patients are still under-represented in clinical studies, and currently there i...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：2006-03-01 00:00:00
abstract：BACKGROUND/AIM:Trans-hiatal and -cervical approach mediastinoscopic radical esophagectomy (TMrE) for esophageal cancers is a less-invasive procedure and does not require for trans-thoracic approach management. However, some patients suffer from pleural effusion after TMrE. In the present study, we investigated the clin...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.13069
更新日期：2018-12-01 00:00:00
abstract：BACKGROUND:Whether high energy shock waves (HESW), generated by a piezoelectric generator, were able to activate a sonosensitizer, 5-aminolevulinic acid (ALA) and induce inhibition of cell growth in HT-29 human colorectal cancer cells was investigated. MATERIALS AND METHODS:Cell survival and cell death pathways were i...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2006-09-01 00:00:00
abstract：:Pallents with breast cancer exhibit an increased risk of developing cancer from other organs, a risk that might increase due to tamoxifen treatment. This drug has been found to cause activation of oestrogen receptors, leading to oestrogenic effects on the postmenopausal endometrium. We report follow-up of 94 patients ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-01-01 00:00:00
abstract：BACKGROUND:Signaling between androgen receptor (AR) and mTOR may be crucial for prostate cancer cells to endure the low androgen and suboptimal nutrient conditions produced by androgen deprivation therapy. MATERIALS AND METHODS:AR and mTOR cross-talk was examined in LNCaP cells exposed to either high or low testostero...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2010-10-01 00:00:00
abstract：BACKGROUND:Zoledronate (Zol), an anti-osteoclastic and anticancer drug, is used to control bone metastasis in several cancer types, including non-small cell lung cancer (NSCLC). However, the mechanisms behind Zol resistance in NSCLC are unclear. MATERIALS AND METHODS:Zol-resistant cell lines were developed by repeated...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2013-12-01 00:00:00
abstract：BACKGROUND/AIM:In order to develop an efficient drug-delivery system (DDS), a lipopeptide-loaded liposome that functions as a platform for the transpeptidase reaction mediated by sortase A (SrtA) was constructed and its stability, as well as cell-specific targeting were evaluated in the present study. MATERIALS AND ME...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2015-08-01 00:00:00
abstract：:Malignant gliomas are often treated with cisplatin (cis-diamminedichloroplatinum(II), CDDP) and radiation but results remain unsatisfactory. To investigate whether CDDP induces radioresistance in glioma, T98G human glioblastoma cells were pretreated 5 times with 10(-6)M CDDP for 24 hours and then the sensitivity of wi...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1997-03-01 00:00:00
abstract：AIM:To investigate the expression and significance of glypican-3 (GPC3) in human hepatocellular carcinoma (HCC). MATERIALS AND METHODS:DNA chips were used to measure the expression of mRNAs for members of the glypican and syndecan families of heparan sulfate proteoglycans (HSPGs) in normal liver tissue, non-tumor tiss...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2010-12-01 00:00:00
abstract：:The LAI reactivity of a colon organ specific neoantigen (OSN) was recovered from the urine of advanced colon cancer patients. In this study three physico-chemical steps were employed; precipitation by 80% ammonium sulfate, ion exchange, and molecular sieve chromatography. Each isolate was tested for activity and speci...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1986-07-01 00:00:00
abstract：BACKGROUND/AIM:Small cell lung cancer (SCLC) is still a deadly type of cancer for which there are few effective therapeutic strategies. Development of a new molecule targeting agent is urgently desired. Previously we showed that recombination signal binding protein for immunoglobulin-kappa-J region (RBPJ) and mastermin...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.12758
更新日期：2018-08-01 00:00:00
abstract：BACKGROUND:Tumorigenesis involves the aberrant function of proteins that regulate growth control, including Oct-1. Oct-1 is a DNA binding transcription factor that activates genes that encode proteins required for S-phase and cell growth. For example, Oct-1 activates the histone H2B promoter and the promoters for the s...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2006-05-01 00:00:00
abstract：:To activate the cancerous genetic information in the cell one has either to activate oncogenes or to inactivate antioncogenes (cancerous growth suppressing genes). These processes usually happen in the cell with the aid of external factors, especially chemical carcinogens' and radiations. It was shown with the aid of ...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：1994-01-01 00:00:00
abstract：BACKGROUND:Glioblastoma responds poorly to standard chemotherapy agents. The expression of a mutant, constitutively-active EGF receptor (EGFRvIII) is common in glioblastoma and contributes to chemotherapy resistance. We have assessed the cytotoxicity of an inhibitor of atypical protein kinase C on glioblastoma cells ex...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2002-03-01 00:00:00
abstract：BACKGROUND/AIM:In this study we aimed to determine if advanced age represents a risk factor for negative perioperative and long-term outcome in patients undergoing curative surgery ductal pancreatic adenocarcinoma surgery. PATIENTS AND METHODS:Two-hundred-twenty-one consecutive patients, twelve (6%) patients ≥80 years...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2016-04-01 00:00:00
abstract：:Small cell lung cancer (SCLC) is highly sensitive both to radiotherapy and chemotherapy. Given its high chemo sensitivity, even two decades ago, SCLC was one of the first malignancies deemed suitable for maximising the dose and dose intensity with the support of autologous bone marrow (ABMT). On the whole, results wer...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：2002-11-01 00:00:00
abstract：:In the study of 65 matched pairs of lung tumor tissue and normal lung parenchyma, cathepsin B (CB) activity was found to be increased about 4.6-fold, when regarding median levels. CB activity was found to be insignificantly higher in adenocarcinoma compared to the other histologic cell types. CB levels did not correla...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1994-05-01 00:00:00
abstract：:Eosinophil granulocytes have been implicated in anticancer immunity but recent data indicate that eosinophils can also promote cancer. Herein, we studied eosinophils in skin lesions from 43 patients with mycosis fungoides (MF). The presence of eosinophils correlated with disease stage: 78% of patients with advanced di...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2014-10-01 00:00:00
abstract：:The effects of all-trans retinoic acid (ATRA), either alone or in combination with GM-CSF, on the induction of differentiation of a human myeloblastic leukemia cell line, ML-1, were investigated. ATRA alone caused only slight induction of NBT-reducing activity even at a high concentration (10(-7) M), but when combined...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1997-05-01 00:00:00
abstract：BACKGROUND:Histological parameters as well as the status of sentinel lymph node are known to be strong prognostic factors in patients with melanoma. PATIENTS AND METHODS:In this study, we retrospectively analyzed 1,384 patients who were diagnosed with head and neck melanoma between 1976 and 2010 regarding prognostic f...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.11759
更新日期：2017-07-01 00:00:00
abstract：AIM:To determine the predictive value of HIF-1α and VEGF-C in primary neuroendocrine breast cancers (NEBC) and their correlation with other clinico-pathological characteristics of NEBC. MATERIALS AND METHODS:HIF-1α and VEGF-C were determined immunohistochemically in tissue samples from 31 cases of NEBC. RESULTS:The H...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2012-12-01 00:00:00
