Abstract：
:Polyamines are ubiquitous cellular compounds which are required for estradiol induced proliferation in breast cancer. Complete polyamine deprivation, using 2 alpha-difluoromethyl-ornithine (DFMO, Eflornithine), a specific inactivator of ornithine decarboxylase (key-enzyme of the polyamine biosynthesis) combined with inhibition of the bacterial production of gastrointestinal polyamine and a polyamine free regimen, was demonstrated to exhibit a cytostatic effect and a decrease of the three tumoral polyamine concentrations in a MCF-7 tumor model. In this experiment, complete polyamine deprivation has been tested on a standard MCF-7 tumor and on a variant MCF-7 tumor (i.e. with a tamoxifen acquired resistance). Polyamine deprivation was effective on the tumor growth, both on standard and variant sub-types. The polyamine contents of two types of tumor were similar, and identically, polyamine deprivation has caused a decrease of putrescine, spermidine and also spermine tumoral concentrations measured by the HPLC method in standard and variant MCF-7 tumors. Acquired tamoxifen resistance is common in patients undergoing hormonal therapy for advanced breast cancer. It has been hypothesized that the direct stimulation of polyamine pathway without estradiol involvement could be one of the mechanisms responsible for the tamoxifen resistance. The ability of polyamine deprivation to inhibit the growth of tumors becoming tamoxifen resistant could offer a therapeutic advantage in case of tumor with acquired tamoxifen resistance and could be tested to prevent or delay the hormonal responsiveness to breast cancer.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Leveque J,Foucher F,Havouis R,Desury D,Grall JY,Moulinoux JPsubject
Has Abstractpub_date
2000-01-01 00:00:00pages
97-101issue
1Aeissn
0250-7005issn
1791-7530journal_volume
20pub_type
杂志文章abstract：:An increase in the 20q13 copy number has been reported in a wide range of solid tumors including breast cancers. However, the biological significance of this 20q13 gain has not yet been defined. We examined the 20q13 gain in breast cancer cells by dual-color FISH using two different DNA probes specific for the region ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2000-01-01 00:00:00
abstract：BACKGROUND/AIM:Matrix metalloproteinase 20 (MMP20) is a member of the family of matrix metalloproteinases. Under normal conditions the expression of MMP20 is restricted to ameloblasts and odontoblasts. In order to identify a possible expression of MMP20 under pathological conditions, we investigated three major human t...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2016-06-01 00:00:00
abstract：BACKGROUND/AIM:Twenty-four 2-azolylchromones were subjected to quantitative structure-activity relationship (QSAR) analysis based on their cytotoxicity and tumor specificity, in order to find their new biological activities. MATERIALS AND METHODS:Cytotoxicity against two human oral squamous cell carcinoma cell lines a...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.12282
更新日期：2018-02-01 00:00:00
abstract：:Plastins are members of a family of actin-binding proteins which exhibit a tissue-specific expression pattern. L-plastin, which is specifically expressed in hematopoietic cell lineage, has been proposed to be involved in the control of cell adhesion and motility. This protein is also frequently expressed in cell lines...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2000-09-01 00:00:00
abstract：:The PTEN gene is a tumor-suppressor gene that is inactivated in several types of human tumors. The loss of PTEN expression has been supported as a prognostic marker. Using immunohistochemical analysis, we retrospectively analyzed PTEN expression in specimens from 53 patients with completely resected stage I non-small ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2003-11-01 00:00:00
abstract：:The triphenylmethane derivative, aurintricarboxylic acid (ATA), but not aurin, is a potent inhibitor of angiogenesis in the chick chorioallantoic membrane. ATA alone showed potent anti-angiogenic activity in a dose-related manner. The presence of heparin or bFGF decreased the anti-angiogenic activity of ATA. ATA also ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1994-03-01 00:00:00
abstract：:Mutations in the p53 gene stimulate cell division. In our study we assessed the prognostic value of mutant p53 overexpression in cervical cancer stage FIGO III detected by immunohistochemistry. In 43 tissue specimens were detected p53 overexpression in 20 cases. Mean survival time was 36.4 (SE +/- 7.66) months in the ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1992-11-01 00:00:00
abstract：BACKGROUND/AIM:Cancer incidence and mortalities are growing worldwide, therefore research and development of more effective and less invasive treatments, such as photodynamic therapy, are needed. Herein, we investigated the methylene blue (MB) photoactivation effects in lung epithelial cells (BEAS-2B) and lung adenocar...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.13522
更新日期：2019-07-01 00:00:00
abstract：AIM:To evaluate the role of low mechanical index (MI) contrast-enhanced sonography (CEUS) for the characterization of small hepatocellular carcinomas (HCC) in cirrhotic patients by comparing the results to ultrafast dynamic gadolinium-enhanced magnetic resonance imaging (MRI) studies. MATERIALS AND METHODS:Between Sep...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2007-11-01 00:00:00
abstract：:This study is related to the serious side effects of Doxorubicin-cardiotoxicity and serum lipid caused by the drug's cumulative effect. Studies were performed on experimental animals treated with intensive administration of Doxorubicin. Seventy five wistar rats were divided in two equal groups A and B. Group A was use...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-09-01 00:00:00
abstract：BACKGROUND:Acquired resistance to platinum-based chemotherapy (Pt-chemo) is a major problem for improving the prognosis for patients with advanced epithelial ovarian cancer (EOC). However, the molecular mechanism of acquired resistance to Pt-chemo is not well understood. MATERIALS AND METHODS:hMLH1 promoter methylatio...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2007-05-01 00:00:00
abstract：BACKGROUND:The hedgehog signaling pathway (HH) is involved in tumorigenesis in a variety of human malignancies. In head and neck squamous cell carcinomas (HNSCC), Hh overexpression was associated with poor prognosis. Therefore, we analyzed the effect of Hh signaling blockade with cyclopamine on colony formation of cell...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2013-06-01 00:00:00
abstract：:CD5 antigen is present on all normal alpha beta T cells and some B cells. Human NK cells do not usually express CD5 antigen, but we found a novel subset of CD5LOW (low density of CD5) positive (CD5LOW+) natural killer cells (NK cells) in patients with multiple myeloma (MM) and plasmacytoma. To detect CD5LOW+NK cells, ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1994-03-01 00:00:00
abstract：UNLABELLED:Gastric carcinoma occurs in response to chronic inflammation of gastric mucosa infected with Helicobacter pylori. It is not known how cytokines affect the growth and progression of gastric carcinoma. MATERIALS AND METHODS:We measured tissue concentrations of the proinflammatory cytokines interleukin (IL)-1b...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2005-03-01 00:00:00
abstract：BACKGROUND:Breast cancer is the most frequent cancer and the second leading cause of cancer deaths in women today. A number of 1,4-naphthoquinone derivatives have been found to possess significant pharmacological effects associated with marked antimicrobial and antitumor activities. In the present study, the in vitro e...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2009-01-01 00:00:00
abstract：BACKGROUND/AIM:Intraperitoneal chemotherapy with taxanes provides high locoregional drug concentrations. Regarding their synergy with hyperthermia, results have been inconclusive. In this in vitro study, the thermal enhancement of the effect of paclitaxel and docetaxel on ovarian cancer cells under conditions mimicking...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.14700
更新日期：2020-12-01 00:00:00
abstract：BACKGROUND/AIM:Orbital metastasis of systemic cancer is exceedingly rare. This is a case report of a patient treated for locally recurrent vulvar melanoma who later presented with unilateral proptosis and was found to have an isolated biopsy-proven extraocular muscle metastasis. PATIENTS AND METHODS:A 94-year-old fema...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：10.21873/anticanres.12658
更新日期：2018-06-01 00:00:00
abstract：BACKGROUND:PSMA expression varies among prostate cell lines. We examined the role of CpG methylation and histone deacetylation in PSMA transcriptional repression in prostate cell lines. MATERIALS AND METHODS:The methylation status of a PSMA CpG island was investigated in LNCaP, DU145 and PC3 prostate cell lines. Cells...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2002-05-01 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：:The triterpenoid fraction (100 and 200 mg/kg) of the fruit bodies of Ganoderma lucidum inhibited primary solid-tumor growth in the spleen, liver metastasis and secondary metastatic tumor growth in the liver in intrasplenic Lewis lung carcinoma (LLC)-implanted mice. In addition, the triterpenoid fraction (800 microgram...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2002-11-01 00:00:00
abstract：:A number of human tumor cell lines originating in tissues which normally express high levels of P-glycoprotein were examined for the expression of mdr-1 RNA and P-glycoprotein and their sensitivity to doxorubicin and vincristine. There was a wide variation in expression levels and in drug sensitivity among the cell li...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1994-01-01 00:00:00
abstract：:Integrin alpha v-beta 3 is involved in tumor angiogenesis while the clinical significance of beta 3 integrin expression in colorectal cancer and lung metastases. Analysis was performed on 51 colorectal cancer patients (22 with subsequent lung metastasis and 29 without lung metastasis). Fifty-one primary tumors and 22 ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2001-01-01 00:00:00
abstract：BACKGROUND:Although p21 is an important component that regulates cell-cycle progression, no consensus has been reached about its clinicopathological significance in esophageal squamous cell carcinoma (ESCC). In the present study, we investigated its prognostic significance and correlation with cyclin-D1 (CCND1) express...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2013-10-01 00:00:00
abstract：AIM:We screened nine 1,2-dihydro-quinolines using the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) cytotoxicity assay in HepG2 and SMMC cells and identified ethyl-2-cyano-2-(2- (methoxycarbonyl)allyl)quinoline-1(2H)-carboxylate (compound 5) as a potential anticancer agent. In order to further deve...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2016-05-01 00:00:00
abstract：BACKGROUND:Breast cancer grows in a hormone-rich environment which influences its biological features and thus, ultimately, its clinical behavior. Circulating hormone levels were measured in premenopausal and postmenopausal breast cancer patients prior to surgery, and correlated with all available clinical and biologic...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2005-01-01 00:00:00
abstract：BACKGROUND/AIM:The mechanism responsible for B-cell translocation gene 1 (BTG1) down-regulation in breast carcinoma remains unknown. We examined the BTG1 expression status in breast carcinoma cells and investigated the mechanism underlying the observed alterations. MATERIALS AND METHODS:Four breast carcinoma cell line...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.13729
更新日期：2019-10-01 00:00:00
abstract：BACKGROUND/AIM:The lipophilic, orally bioavailable camptothecin analogue gimatecan is characterized by improved efficacy over conventional camptothecins on human tumor xenografts. Gimatecan produced excellent outcomes orally with prolonged, low-dose, daily treatments. The aim of this study was to assess the antitumor e...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.12917
更新日期：2018-10-01 00:00:00
abstract：:It was the aim of this study to compare drug-resistant sublines of the murine P388 in relation to resistance markers, the resistant phenotype and immunogenicity. Resistance to drugs either belonging to the MDR type (Doxorubicin, Vincristine, Mitoxantrone) or to the non-MDR type (Methotrexate) was generated in vivo in ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1994-09-01 00:00:00
abstract：:The aim of our study was to investigate the role of electroporation in the treatment of cisplatin resistant tumor cells in vitro. For this purpose we used well characterized human ovarian carcinoma IGROV I cells and their resistant subclone IGROV 1/DDP. The cells were either continuously exposed to cisplatin or treate...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1998-11-01 00:00:00
abstract：:We investigated the anti-metastatic effect of PKC412, a selective inhibitor of protein kinase C (PKC), on a spontaneous metastatic mouse model, which was prepared by inoculation with B16-BL6 mouse melanoma cells into the footpad of the right hind leg. At two weeks after inoculation, the primary tumor was amputated com...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2003-03-01 00:00:00
