Abstract:
:Polyoma virus (Py) differs from other small DNA tumor viruses in not encoding a protein that inactivates p53. The complete Py early region encoding the large T-antigen (PyLT), middle T-antigen (PyMT) and small T-antigen (PyST) will transform primary rodent cells and REF52 cells, but PyMT, the main Py oncogene, by itself will only transform these cells when p53 or ARF is inactivated. We have related Py oncogene cooperation with the effects of the Py T-antigens on the ARF-p53 signaling pathway. PyMT activates an ARF-induced p53-mediated block to cell division explaining the inability of PyMT alone to generate dividing transformed cells. In contrast, in REF52 cells transformed by the whole Py early region (PyREF52), ARF is upregulated but p53 is not activated. Thus PyLT and/or PyST negates the PyMT-induced ARF-mediated block to cell division by disrupting the signaling pathway from ARF to p53. Although there is no detectable interaction or co-localization of endogenous ARF (nucleoli) and MDM2 (nucleoplasm) in PyREF52 cells, expression of transfected ectopic ARF results in an MDM2/ARF interaction and sequestration of MDM2 into the nucleoli. Sequestration of MDM2 by ARF in the nucleoli is not essential for a p53 response in REF52 cells as activation of Raf in REF52Raf-ER cells results in an ARF-induced p53-mediated cell cycle block in the absence of a detectable ARF-MDM2 interaction. Py may provide new insights into the cellular ARF-p53 signaling pathway.
journal_name
Oncogenejournal_title
Oncogeneauthors
Lomax M,Fried Mdoi
10.1038/sj.onc.1204717subject
Has Abstractpub_date
2001-08-16 00:00:00pages
4951-60issue
36eissn
0950-9232issn
1476-5594journal_volume
20pub_type
杂志文章相关文献
ONCOGENE文献大全abstract::Wilms tumours (WTs) have two distinct types of histology with or without ectopic mesenchymal elements, suggesting that WTs arise from either the mesenchymal or epithelial nephrogenic lineages. Regardless of the presence or absence of CTNNB1 mutations, nuclear accumulation of beta-catenin is often observed in WTs with ...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/onc.2008.455
更新日期:2009-02-26 00:00:00
abstract::Rapamycin, a natural product inhibitor of the Raptor-mammalian target of rapamycin complex (mTORC1), is known to induce Protein kinase B (Akt/PKB) Ser-473 phosphorylation in a subset of human cancer cell lines through inactivation of S6K1, stabilization of insulin receptor substrate (IRS)-1, and increased signaling th...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1210343
更新日期:2007-08-16 00:00:00
abstract::It is presently unclear if ovarian cancers arise through malignant transformation of pre-existing benign tumours. The apparent rarity of loss of heterozygosity (LOH) reported for benign tumours has led to speculation that they lack malignant potential and represent a biological entity distinct from ovarian carcinoma. ...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1201372
更新日期:1997-10-23 00:00:00
abstract::Using Southern blot analysis of DNA from mouse-hamster somatic cell hybrids, we have mapped Lmyc and Bmyc, two members of the myc family of genes, to mouse chromosomes 4 and 2, respectively. Furthermore, we have compared the regulation of Lmyc and Bmyc expression under different growth conditions and during in vitro d...
journal_title:Oncogene
pub_type: 杂志文章
doi:
更新日期:1988-12-01 00:00:00
abstract::Somatic mutations of FLT3 involving internal tandem duplication (ITD) of the juxtamembrane domain or point mutations in the tyrosine kinase domain (TKD) appear to activate FLT3 in a FLT3 ligand (FL)-independent manner. To determine whether or not FLT3 mutants respond to FL for their activation, a FL-deficient (FL(-/-)...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/onc.2011.110
更新日期:2011-09-22 00:00:00
abstract::Dysregulation of cellular signaling pathways can lead to colon cancer. However, research on the key signaling effectors or regulators in colon carcinogenesis is limited. Casein kinase-2 interacting protein-1 (CKIP-1; also known as PLEKHO1) is crucial during adult bone formation and is a promising drug target for osteo...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/onc.2013.340
更新日期:2014-07-10 00:00:00
abstract::The short arm of chromosome 17 is one of the most frequently affected chromosomal regions in lung cancers, while there is solid evidence that the p53 gene at 17p13.1 is a target for frequent 17p deletions. In the present study, we re-evaluated 17p deletions in lung cancers by conducting a detailed analysis of the mini...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1202128
更新日期:1998-10-22 00:00:00
abstract::Recently, constitutive activation of JAK kinases (JAKs) and/or signal transducers and activators of transcription (STATs) has been reported in growing numbers of human cancer cells as well as oncogene-transformed cells. JAB/SOCS-1 has been shown to be an intrinsic JAK tyrosine kinase inhibitor and to suppress the cyto...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1203829
更新日期:2000-09-28 00:00:00
abstract::In order to assess the functional contribution of the human c-myc promoter region in the expression of the c-myc gene, transgenic mouse lines containing a bacterial lac Z gene encoding beta-galactosidase under the control of the human c-myc protooncogene promoter were generated. Transgenic mouse embryos heterozygous f...
journal_title:Oncogene
pub_type: 杂志文章
doi:
更新日期:1995-06-15 00:00:00
abstract::In addition to breast and ovarian cancer in women, recent evidence suggests that germ-line mutations of the breast cancer susceptibility gene-1 (BRCA1) also confer an increased life-time risk for prostate cancer in male probands. However, it is not known if and how BRCA1 functions in prostate cancer. We stably express...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1202116
更新日期:1998-06-11 00:00:00
abstract::Nasopharyngeal carcinoma (NPC) is a unique head and neck cancer with highly aggressive and metastatic potential in which distant metastasis is the main reason for treatment failure. Till present, the underlying molecular mechanisms of NPC metastasis remains poorly understood. Here, we identified S100 calcium-binding p...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/s41388-020-1363-8
更新日期:2020-07-01 00:00:00
abstract::Due to its high proclivity to metastasize, and despite the recent development of targeted and immune therapy strategies, melanoma is still the deadliest form of skin cancer. Therefore, understanding the molecular mechanisms underlying melanoma invasion remains crucial. We previously characterized Tspan8 for its abilit...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/s41388-019-0691-z
更新日期:2019-05-01 00:00:00
abstract::Receptor tyrosine kinases (RTKs) control proliferation and differentiation through their ability to bind and/or phosphorylate intracellular substrates. The repertoire of substrates recruited by different RTK is largely overlapping. It is not clear, therefore, how a cell distinguishes among signals originating from dif...
journal_title:Oncogene
pub_type: 杂志文章
doi:
更新日期:1995-09-21 00:00:00
abstract::Prostate cancer is one of the major causes of cancer-related death in the western world. Androgen-deprivation therapy (ADT) for the suppression of androgens binding to the androgen receptor (AR) has been the norm of prostate cancer treatment. Despite early success to suppress prostate tumor growth, ADT eventually fail...
journal_title:Oncogene
pub_type: 杂志文章,评审
doi:10.1038/onc.2010.121
更新日期:2010-06-24 00:00:00
abstract::The carboxyl terminus of c-Myb contains a negative regulatory domain that is absent in the v-Myb oncoprotein, but conserved among all the known Myb proteins of animals. This domain inhibits transcriptional activation by c-Myb in animal cells, but not in budding yeast, suggesting that additional protein(s) present in a...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1204048
更新日期:2001-01-04 00:00:00
abstract::Activation of cellular transcriptional responses, mediated by hypoxia-inducible factor (HIF), is common in many types of cancer, and generally confers a poor prognosis. Known to induce many hundreds of protein-coding genes, HIF has also recently been shown to be a key regulator of the non-coding transcriptional respon...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/onc.2014.378
更新日期:2015-08-20 00:00:00
abstract::We have recently developed an allele titration assay (ATA) to assess the sensitivity and influence of normal cell admixture in loss of heterozygosity (LOH) studies based on CA-repeat. The assay showed that these studies are biased by the size-dependent differential sensitivity of allele detection. Based on these data,...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1203449
更新日期:2000-03-09 00:00:00
abstract::Signal transduction and activator of transcription 3(STAT3) signaling is constitutively activated in various tumors, and is involved in cell survival and proliferation during oncogenesis. There are few reports, however, on the role of STAT3 signaling in gastric cancer. The aim of the present study was to clarify the r...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1207606
更新日期:2004-06-17 00:00:00
abstract::The stress-activated protein kinases (SAPKs), also known as c-Jun amino-terminal kinases (JNKs), are activated in response to diverse stimuli including DNA damage, heat shock, interleukin-1, tumor necrosis factor-alpha and Fas. Although all these inducers cause apoptosis, whether SAPK/JNK activation is required for ap...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1201253
更新日期:1997-08-14 00:00:00
abstract::Silencing of gene expression by methylation of CpG islands in regulatory elements is frequently observed in cancer. However, an influence of the most common oncogenic signalling pathways onto DNA methylation has not yet been investigated thoroughly. To address this issue, we identified genes suppressed in HRAS-transfo...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1209502
更新日期:2006-08-10 00:00:00
abstract::Mutations of SMAD4/DPC4 are found in about 60% of human invasive pancreatic ductal adenocarcinomas (PDACs); yet, the manner in which SMAD4 deficiency enhances tumorigenesis remains elusive. Using a Cre-LoxP approach, we generated a mutant mouse carrying a targeted deletion of Smad4 in the pancreas. We showed that the ...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/onc.2009.375
更新日期:2010-02-04 00:00:00
abstract::Dietary effects are presumed to underlie many of the large international differences in incidence seen for most cancers. Apart from alcohol and a few micronutrients, however, the role of specific nutritional factors remains ill-defined. The evidence for a role of energy balance, physical inactivity, and obesity has st...
journal_title:Oncogene
pub_type: 杂志文章,评审
doi:10.1038/sj.onc.1207716
更新日期:2004-08-23 00:00:00
abstract::The genetic instability driving tumorigenesis is fueled by DNA damage and by errors made by the DNA replication. Upon DNA damage the cell organizes an integrated response not only by the classical DNA repair mechanisms but also involving mechanisms of replication, transcription, chromatin structure dynamics, cell cycl...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1208570
更新日期:2005-06-09 00:00:00
abstract::The anti-p185(her2/neu) peptidomimetic (AHNP) is a small exo-cyclic peptide derived from the anti-p185(her2/neu) rhumAb 4D5 (h4D5). AHNP mimics many but not all of the antitumor characteristics exhibited by h4D5. However, the pharmacokinetic profiles of AHNP are less than optimal for therapeutic or diagnostic purposes...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1209745
更新日期:2006-12-14 00:00:00
abstract::The most ominous development in tumor progression is the transition to an invasive and metastatic phenotype. Little is known, however, about the molecular alterations that cause a tumor to become invasive. In view of this, we have used microarray expression analysis to evaluate the expression profiles of a unique pane...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1204379
更新日期:2001-05-17 00:00:00
abstract::Many lines of evidence indicate that connexin genes expressing gap junction (GJ) proteins inhibit tumor cell proliferation. However, the precise molecular mechanisms remain unclear. In this study, we show that overexpression of connexin43 (Cx43) suppressed proliferation of human osteosarcoma U2OS cells through inhibit...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1204563
更新日期:2001-07-12 00:00:00
abstract::p53 and DNA methylation play key roles in the maintenance of genome stability. In this work, we demonstrate that the two mechanisms are linked and that p53 plays a role in the maintenance of the DNA methylation levels. The loss of p53 was shown to induce loss of DNA methylation in the TROP1 gene, a human cancer-expres...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1206248
更新日期:2003-03-20 00:00:00
abstract::Activation of the EGF receptor (c-erbB) tyrosine kinase has been implicated in tumorigenesis, either by overexpression of the normal receptor in the presence of EGF, or through expression of a truncated receptor lacking the EGF binding domain as in the viral oncogene v-erbB. Here, normal and truncated human EGF recept...
journal_title:Oncogene
pub_type: 杂志文章
doi:
更新日期:1989-03-01 00:00:00
abstract::Protein kinase D2 (PKD2) is a serine/threonine kinase that belongs to the PKD family of calcium-calmodulin kinases, which comprises three isoforms: PKD1, PKD2, and PKD3. PKD2 is activated by many stimuli including growth factors, phorbol esters, and G-protein-coupled receptor agonists. PKD2 participation to uncontroll...
journal_title:Oncogene
pub_type: 杂志文章,评审
doi:10.1038/s41388-017-0052-8
更新日期:2018-03-01 00:00:00
abstract::Hepatitis B virus (HBV) is a major risk factor for the development of hepatocellular carcinoma (HCC). HBV encodes the potentially oncogenic HBx protein, which mainly functions as a transcriptional co-activator involving in multiple gene deregulations. However, mechanisms underlying HBx-mediated oncogenicity remain unc...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1204481
更新日期:2001-06-21 00:00:00