Abstract:
:We examined the effect of estrogens on mitogen-activated protein kinase (MAPK) in EPN cells, a line of epithelial cells derived from human normal prostate. 17beta-estradiol (E2) caused a rapid and transient activation of MAPK (ERK1/2) within 5 min. This effect was counteracted by the anti-estrogen ICI 182-780 and by MEK inhibitor PD098059. The activation of ERK1/2 through 17beta-estradiol triggered simultaneous association of endogenous androgen receptor, estrogen receptor alpha and Src. In addition, E2 stimulated the proliferation of EPN cells, suggesting that the formation of the ternary complex and the consequent activation of ERKs are implicated in the mechanism regulating proliferation of epithelial prostate cells.
journal_name
Int J Oncoljournal_title
International journal of oncologyauthors
Chieffi P,Kisslinger A,Sinisi AA,Abbondanza C,Tramontano Dkeywords:
subject
Has Abstractpub_date
2003-09-01 00:00:00pages
797-801issue
3eissn
1019-6439issn
1791-2423journal_volume
23pub_type
杂志文章abstract::Malignant gliomas are treated by combining surgery and radiation with chemotherapy. Cure is rare and utilizing information arising from our improved understanding of brain tumor biology may be of value. Interferon alpha (IFNalpha) treatment as restorative immunotherapy has been utilized in malignant gliomas in the pas...
journal_title:International journal of oncology
pub_type: 临床试验,杂志文章
doi:
更新日期:2004-08-01 00:00:00
abstract::Models of animal melanoma are still indispensable tools in oncological research because they can be studied in syngeneic hosts while human melanomas cannot. One such model is a family of melanomas which originated in 1959 from a spontaneous melanotic melanoma of the skin in Syrian hamster, the Bomirski melanomas. Curr...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2.2.221
更新日期:1993-02-01 00:00:00
abstract::We evaluated the effect of intravenous thermosensitive liposomal doxorubicin (TL-DOX) together with local hyperthermia on primary tumors in highly metastatic hamster osteosarcoma. This combination resulted in higher DOX concentrations in plasma, primary tumors and lungs than standard DOX under the same conditions. Tum...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.19.3.585
更新日期:2001-09-01 00:00:00
abstract::The purpose of the study was to determine whether the organ environment can influence the response of colon cancer cells to chemotherapy. The highly metastatic human colon cancer cell line KM12L4, previously selected for production of liver metastases in nude mice, was injected into the cecal wall and into the spleen ...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.3.3.413
更新日期:1993-09-01 00:00:00
abstract::The interactions between cells and the extracellular matrix (EM) have important effects on tumor invasion and metastasis. Osteosarcoma (OS) is a highly metastatic tumor, secondary lesions occurring early in the natural history of the disease. Despite the clinical relevance of disseminated disease in this neoplasia, th...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.3.5.963
更新日期:1993-11-01 00:00:00
abstract::Malignant astrocytomas are highly invasive, vascular neoplasms that comprise the majority of nervous system tumors in humans. A strong association has previously been made between malignancy in human astrocytic tumors and increased expression of certain fibroblast growth factor (FGF) family members. MG-160 is an intri...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2003-05-01 00:00:00
abstract::Dideoxypetrosynol A, a polyacetylene from the marine sponge Petrosia sp., is known to exhibit significant selective cytotoxic activity against several human cancer cell lines. In the present study, we investigated further possible mechanisms by which dideoxypetrosynol A exerts its anti-proliferative action in cultured...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2007-01-01 00:00:00
abstract::Resistance to first-line chemotherapeutic drugs such as gemcitabine contributes to the poor prognosis of patients with pancreatic cancer. MicroRNAs (miRNA) regulate chemoresistance in pancreatic cancer. By analyzing the miRNA sequencing dataset of pancreatic cancer from The Cancer Genome Atlas, it was demonstrated tha...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2018.4315
更新日期:2018-05-01 00:00:00
abstract::We established new two protein-free culture subclones from murine well-characterized Ehrlich ascites carcinoma and P815 mastocytoma using intermittent protein-free culture performed previously for a protein-free subclone of fibrosarcoma (Gc-4 PF). The Ehrlich protein-free subclone (Ehrlich PF) grew much more slowly th...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.1.4.481
更新日期:1992-09-01 00:00:00
abstract::Telomerase activation in differentiated cells is associated with cell immortalization. Detection of telomerase expression in cancer provides a potential biomarker to be evaluated in the diagnosis and prognosis of cancer patients. Analysis of telomerase activity in biopsy specimens may serve as a useful marker for the ...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.17.2.381
更新日期:2000-08-01 00:00:00
abstract::The purpose of this present study was to investigate the role of inhibitor of apoptosis proteins (IAPs), their inhibitor, Smac, and the focal adhesion kinase (FAK) in the laminin enhancement of cisplatin-induced apoptosis in a testicular tumor germ cell line, NCCIT. We demonstrated that specifically in laminin-adheren...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2006-02-01 00:00:00
abstract::p21WAF1/CIP1 protein is a cyclin-dependent kinase inhibitor, able to prevent the CDK2/cyclin E induced retinoblastoma protein (pRB) phosphorylation, thus inhibiting cell cycle progression at G1 phase. p21WAF1/CIP1 protein levels were examined in a series of 102 ovarian tissue samples including normal ovary, primary ov...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.17.6.1231
更新日期:2000-12-01 00:00:00
abstract::A series of different human MDR (multidrug-resistant) cell lines including a HeLa-MDR1 transfectant which exhibit high overexpression of the MDR1/P-glycoprotein gene, but no enhanced expression of the MRP (multidrug resistance associated protein) gene, showed different ratios of relative resistances to the taxanes tax...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.8.5.951
更新日期:1996-05-01 00:00:00
abstract::Although strong evidence is available suggesting that microenvironmental parameters play a role in lymphogenic or hematogenic metastasis, the underlying mechanisms are still unclear and further investigations of this topic are needed. For such a study however, an appropriate model of metastasis for in vivo analysis of...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2005-09-01 00:00:00
abstract::Expressions of p53 protein and epidermal growth factor receptor (EGFR) were immunohistochemically investigated in 111 patients with papillary thyroid carcinomas (PTC) in order to evaluate their co-expression in relation to lymph node metastases (LNM), tumor size and clinicopathologic stage. In PTC, positive staining f...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.15.5.893
更新日期:1999-11-01 00:00:00
abstract::We examined the clinical significance of E-cadherin and vimentin expression in 83 patients with breast dancer. E-cadherin expression was correlated with axillary metastases, histologic grade, recurrence and disease-free survival, but not with overall survival. On the other hand, vimentin expression was correlated with...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.9.4.755
更新日期:1996-10-01 00:00:00
abstract::Cancer-associated fibroblasts (CAFs) are key determinants in the malignant progression of cancer, supporting tumorigenesis and metastasis. CAFs also mediate epithelial to mesenchymal transition (EMT) in tumor cells and their achievement of stem cell traits. Curcumin has recently been found to possess anticancer activi...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2015.3202
更新日期:2015-12-01 00:00:00
abstract::Insulin-like growth factor-II (IGF-II)/IGF2R signaling plays a pivotal role in cell growth, migration and differentiation in many malignancies. An individual with high IGF-II expression levels has a high risk of developing cancer, but IGF2R is often considered to be a tumor suppressor. To date, little has been reporte...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2014.2512
更新日期:2014-09-01 00:00:00
abstract::A putative tumor suppressor, PTEN/MMAC1 gene was recently identified at 10q23 and was found to be frequently altered in several types of human tumors. To determine the possible role of this gene in human ovarian tumors, we screened 31 unselected primary epithelial ovarian cancers with matched normal tissues and 7 ovar...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.13.1.101
更新日期:1998-07-01 00:00:00
abstract::Meningiomas are the most commonly occurring intracranial tumors and account for approximately 15-20% of central nervous system tumors. Patients whose tumors recur after surgery and radiation therapy have limited therapeutic options. It has also been reported recently that radiation triggers DNA repair, cell survival a...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2011.934
更新日期:2011-04-01 00:00:00
abstract::The FHIT gene, at 3p14.2, has been suggested to form a molecular target to damage induced by human lung carcinogens. We examined aberrant expression of the Fhit protein and allele loss at the FHIT gene in a series of lung cancer cases, mainly of non-small cell carcinoma (NSCLC) histology. We had detailed data on tobac...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2002-02-01 00:00:00
abstract::The effect of reduced glutathione (GSH) and ethanol on aflatoxin B1 (AFB1)-induced DNA single strand breaks was studied in primary cultured hepatocytes. Buthionine sulfoximine (BSO) which decreased intracellular GSH to 13% of those of the control levels increased DNA fragmentation of AFB1-treated hepatocytes by over 1...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.4.1.123
更新日期:1994-01-01 00:00:00
abstract::Sphingosine-1-phosphate (S1P) is a bioactive phospholipid that transmits signals through G-protein-coupled receptors to control cellular differentiation, survival, and several functions of immune cells. S1P is a chemoattractant for NK cells, which are critical members of the immunological tumor surveillance machinery....
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2009-01-01 00:00:00
abstract::Experimental studies have established that the sulfated glycosaminoglycans heparan sulfate and chondroitin sulfate act as co-receptors of cytokines and growth factors that drive the malignant cell phenotype and the remodelling of the surrounding tumor stroma. However, the clinical relevance of these studies remains il...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2011.1164
更新日期:2011-12-01 00:00:00
abstract::The transcription factor E2F4 plays a critical role in cell cycle progression of normal and cancerous intestinal epithelial cells. Contrary to other E2Fs, the coding region of the E2F4 gene contains a longer spacer segment of a CAG trinucleotide repeat sequence encoding 13 consecutive serine residues, which is highly ...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2013.2131
更新日期:2013-12-01 00:00:00
abstract::Enhanced Notch signaling contributes to uncontrolled cell growth and cell death resistance in cancer. Here, we demonstrate that in colorectal carcinoma cells the Notch1-dependent activation of cell cycle and proliferation is mediated by repression of the cyclin-dependent kinase inhibitor (CDKI) p27. The half-life of p...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2013.2140
更新日期:2013-12-01 00:00:00
abstract::E-cadherins are homophilic adhesion molecules the expression of which is tightly linked to the invasiveness and the differentiated state of the cells. E-cadherin expression seems also inversely related to the expression of vimentin, an intermediate filament implicated in the metastatic potential of some cells. In brea...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.4.1.181
更新日期:1994-01-01 00:00:00
abstract::One hundred five patients with clinical stage T2-T4 transitional cell bladder carcinoma who completed either low-dose (20-26 Gy) or high dose (40-50 Gy) preoperative radiotherapy (RT) followed by cystectomy were reviewed. Five-year actuarial survival was 42%, 52%, and 17% for stages T2, T3, and T4, respectively. Five-...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.1.5.555
更新日期:1992-10-01 00:00:00
abstract::Thirty-four children with newly diagnosed acute nonlymphoblastic leukemia were analysed for the expression of P-glycoprotein (P-170), glutathione S-transferase-pi, (GST-pi) topoisomerase II (Topo II) and the proliferation antigen Ki-67 by the streptavidin-biotin-peroxidase method. Overexpression of P-170 was present i...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.5.4.841
更新日期:1994-10-01 00:00:00
abstract::The peptide hormone, GnRH has been hypothesized to play a direct antitumoral role in certain kinds of breast cancer. This direct effect is considered to function via high affinity membrane receptors to GnRH that have been demonstrated in tumors. However, no routine assay for GnRH receptors exist limiting further resea...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:1995-08-01 00:00:00