Abstract：
:Estrogen receptor activation in hormone dependent cells (MCF-7 and T47D) and hormone independent cells (MDA-MB-231) was measured by bioluminescence in stably transfected human breast cancer MCF-7, T47D and MDA-MB-231 cell lines with a reporter gene which allows expression of the firefly luciferase enzyme under the control of an estrogen regulatory element. Estrogen receptor activation by estrogens and steroid sulfates such as estrone 3-sulfate (E1S), estradiol 3-sulfate (E2S), estriol 3-sulfate (E3S) and dehydroepiandrosterone sulfate (DHEAS) were studied and compared in these cell lines. DHEAS, at a physiological plasma concentration only (1 microM), had a high "estrogen-like" effect in MCF-7 and T47D cells. In contrast, estrogen sulfates did not have any effect on the luciferase activity at their physiological plasma concentration. These results suggest that MCF-7 and T47D cells could convert DHEAS to estrogens by aromatase and/or to estrogen-like compounds by other enzymatic systems. This is the first demonstrahon of the steroid sulfates action through their metabolites on the estrogen receptor. Therefore, at the concentrations observed in physiological conditions, DHEAS could contribute to the pool of compounds having estrogenic activities in human breast cancer hormone dependent cell lines.
journal_name
Anticancer Resjournal_title
Anticancer researchauthors
Le Bail JC,Allen K,Nicolas JC,Habrioux Gsubject
Has Abstractpub_date
1998-05-01 00:00:00pages
1683-8issue
3Aeissn
0250-7005issn
1791-7530journal_volume
18pub_type
杂志文章abstract：:The use of salvage chemotherapy in advanced non small cell lung cancer (NSCLC) is controversial. However, many patients need to be treated in order to achieve relief of their symptoms. Docetaxel (taxotere) is one of the most active drugs for the treatment of advanced NSCLC and several studies have also shown its effec...
journal_title：Anticancer research
pub_type： 临床试验,杂志文章,多中心研究,评审
doi：
更新日期：2000-03-01 00:00:00
abstract：BACKGROUND:Malignant transformation in endometriosis is a rare but well known complication. However, detailed mechanisms of malignant transition and tumourigenesis in endometriosis remain unknown. We here describe the case of an endometrioid carcinoma arisen in endometriotic ovarian cyst fulfilling Sampson's criteria f...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2004-01-01 00:00:00
abstract：BACKGROUND/AIM:Interleukin-32 (IL32) has been newly-identified as a proinflammatory cytokine. In the present study, we aimed to clarify the clinical role of IL32-positive cells in esophageal squamous cell cancer (ESCC) and regulatory T-cell (Treg) infiltration in the stroma. A total of 179 patients with ESCC who underw...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2015-05-01 00:00:00
abstract：:Curcumin and its reduced derivative tetrahydrocurcumin have been shown to exhibit chemopreventive activity. Cyclooxygenase-2 (COX-2) inhibition in lipopolysaccharide (LPS)- or Porphyromonas gingivalis fimbria-stimulated RAW 264.7 cells was investigated using Northern blot analysis. The fimbria-stimulated expression of...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2008-03-01 00:00:00
abstract：:Ras proteins must be isoprenylated at a conserved cysteine residue near the carboxyl terminus (Cys-186 in mammalian Ras p21 proteins) in order to extend their biological activity. Previous studies have indicate an intermediate in the mevalonate pathway, most likely farnesyl pyrophosphate, is the donor of this isopreny...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1997-07-01 00:00:00
abstract：BACKGROUND:The transforming growth factor beta (TGF-beta) superfamily regulates cell growth in various cells. Previous studies have shown that altered expression of TGF-beta receptors, Smad2 and Smad4, as mediators of TGF-beta superfamily signaling, contributes to tumor progression in esophageal squamous cell carcinoma...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2004-11-01 00:00:00
abstract：:Dedifferentiated liposarcoma (DDLS) is a malignant adipocytic tumor showing transition from an atypical lipomatous tumor (ALT)/well-differentiated liposarcoma (WDLS) to a non-lipogenic sarcoma of variable histological grades. We present the immunohistochemical, cytogenetic, and molecular cytogenetic findings of DDLS a...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2015-01-01 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/AIM:The phosphatidylinositol-3-kinase (PI3K) signaling pathway is frequently activated in cancer. Buparlisib (BKM120), an oral pan-PI3K inhibitor, inhibits proliferation of human cancer in preclinical models. Studies of buparlisib in Western and Japanese adults with advanced solid tumors established a recomm...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.11212
更新日期：2016-11-01 00:00:00
abstract：BACKGROUND:3-Chloro-4-(dichloromethyl)-5-hydroxy-2(5H)-furanone (MX), a disinfection by-product in chlorinated drinking water, induces follicular tumors in thyroid glands in Wistar rats. The mechanisms of the MX-induced thyroid gland tumorigenesis are not known. MATERIALS AND METHODS:The expressions of p53 (primary an...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2002-03-01 00:00:00
abstract：:Antisense inhibition of the RelA subunit but not the NFKB1 subunit of NK-kappa B transcription factor results in a block of cellular adhesion and inhibition of tumor cell growth in vitro and in vivo. Studies aimed at dissecting the molecular mechanism of antisense relA action led to our identification of a kappa B-lik...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1995-09-01 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：BACKGROUND:Primary serous-papillary peritoneal carcinoma is able to spread to the retroperitoneal lymph nodes, but there is no evidence of the pattern of lymphatic metastasis. Because of the fact that this tumor entity is indistinguishable histologically from primary serous-papillary ovarian carcinoma, its taxonomic po...
journal_title：Anticancer research
pub_type： 杂志文章,评审
doi：
更新日期：2011-04-01 00:00:00
abstract：:In a recent paper entitled "Circulating 25-Hydroxyvitamin D and the Risk of Pancreatic Cancer," Stolzenberg-Solomon et al. reported that the odds ratio for diagnosis of pancreatic cancer shows a "statistically significant" precipitous jump of more than a factor of 2 at the highest presented concentrations of >100 nmol...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2012-03-01 00:00:00
abstract：:Mouthwashes are widespread used to treat halitosis or minor oral infections. Adverse effects of mouthwashes were recognized, e.g. desquamation of the oral mucosa and stomatitis. The acute toxicity of mouthwashes was tested in an in vitro system, the pollen tube growth test (PTG-test). In the PTG-test the acute toxicit...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1999-07-01 00:00:00
abstract：AIM:To determine whether concentrations of the angiogenic growth factors hepatocyte growth factor (HGF) and vascular endothelial growth factor A (VEGF-A) correlate with clinical and genetic markers in samples taken at diagnosis in children with neuroblastoma (NB). PATIENTS AND METHODS:Heparin plasma (P-) and serum (S-...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2009-08-01 00:00:00
abstract：AIM:To generate a survival score for patients with breast cancer treated with stereotactic radiosurgery (SRS) alone for brain metastases. PATIENTS AND METHODS:Seven factors were evaluated in 34 patients, namely age, performance score, number of brain metastases, maximum diameter of all brain metastases, location of br...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2016-03-01 00:00:00
abstract：BACKGROUND:For eradicating portal venous tumor extension and intrahepatic metastasis in hepatocellular carcinoma (HCC), anatomical resection is, in theory, preferable. PATIENTS AND METHODS:We carried-out a retrospective cohort study in 110 patients who underwent curative hepatic resection (anatomical resection; n=20, ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2014-08-01 00:00:00
abstract：AIM:We report a retrospective evaluation for patients with stage IVB cervical cancer in order to identify survival rates and to improve our current practice. PATIENTS AND METHODS:We analyzed 85 patients with stage IVB cervical cancer. For patients appropriate for radical treatment, a combination of external-beam radio...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2016-07-01 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
abstract：BACKGROUND/AIM:To validate the melanoma nomogram and improve its function in prediction of nodal dissemination by incorporating a molecular marker in the model. Microphthalmia transcription factor (MITF) is an important regulator of melanocyte homeostasis and differentiation. We have shown that the grade of MITF expres...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.11266
更新日期：2016-12-01 00:00:00
abstract：BACKGROUND/AIM:Patients with metastatic head-and-neck cancer require individual therapies facilitated by prognostic tools. A tool to estimate the risk of recurrent or new cerebral metastases following whole-brain irradiation (WBI) is presented. PATIENTS AND METHODS:Age, gender, performance status, cancer site, number ...
journal_title：Anticancer research
pub_type： 杂志文章
doi：10.21873/anticanres.12714
更新日期：2018-07-01 00:00:00
abstract：:Human papillomaviruses (HPV) and their role in carcinogenesis have been the subject of extensive investigation Specific types of HPV have been associated with cervical carcinoma HPV 16 and 18 are mainly associated with malignant progression and considered "high risk" viruses Using Southern blot analysis and in situ hy...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1997-01-01 00:00:00
abstract：BACKGROUND:Chemotherapy sensitivity of soft-tissue sarcomas (STS) is limited, which may be due to multidrug resistance (MDR). MDR is associated with expression of P-glycoprotein (P-gp), Multidrug Resistance-associated Protein 1 (MRP1) and Lung Resistance-related Protein (LRP). It is unknown whether in STS metastasis is...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2004-01-01 00:00:00
abstract：:Cytotoxicity of L-canavanive, a structural analogue of L-arginine, was tested by means of (1) inhibition of DNA synthesis in Balb/c-3T3 cell line and (2) inhibition of mitosis in peripheral blood lymphocytes in culture. The cytostatic nature of inhibition caused by L-canavanine was indicated by the complete recovery o...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1981-01-01 00:00:00
abstract：PURPOSE:To determine the tolerability and efficacy of the combination of gefitinib with gemcitabine plus vinorelbine in metastatic breast cancer (MBC) patients, pretreated with anthracyclines and taxanes. PATIENTS AND METHODS:Women with measurable MBC pretreated with anthracycline- and taxane-based chemotherapy receiv...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2008-09-01 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：BACKGROUND:We investigated whether GM-CSF/IL-4 is the most efficient cytokine combination for differentiating dendritic cells (DC) in terms of its ability to elicit an antitumor immune response. MATERIALS AND METHODS:Two experimental models were examined: C57BL/6 mice bearing MC38 cells and Balb/c mice bearing cachexi...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2004-05-01 00:00:00
abstract：BACKGROUND:Previously we demonstrated that injection of Interleukin-alpha (IL-1) stimulated B16 melanoma tumour growth in vivo, associated with increased intercellular adhesion molecule-1 (ICAM-1) expression on the tumour cells (Photodermatol Photoimmunol Photomed 1994; 10: 74-79, ). METHODS:In the present study, we e...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：1996-01-01 00:00:00
abstract：BACKGROUND:Lung cancer tissues are often infiltrated by B lymphocytes, but it is not clear whether these infiltrations represent tumor-specific immune response or a nonspecific reaction. MATERIALS AND METHODS:The serological analysis of recombinant cDNA expression libraries (SEREX) were previously modified using a sev...
journal_title：Anticancer research
pub_type： 杂志文章
doi：
更新日期：2006-09-01 00:00:00
