Abstract:
:The ability of glioma cells to migrate great distances from a primary tumor mass is the primary cause of tumor recurrence. The urokinase-type plasminogen activator (uPA) is a serine protease that can initiate proteolytic cascades, which result in remodeling of extracellular matrix and basement membrane, allowing cells to move across and through these barriers. The binding between uPA and its receptor uPAR also mediates several signaling events that seem to contribute to the evolution of a migratory phenotype. In this study, we determined how the downregulation of uPA affects the signaling pathways leading to cell migration. Stably transfecting human glioblastoma cells with antisense uPA decreased the amount of cell-bound uPA and disrupted actin cytoskeleton formation and cell migration. The phosphatidylinositol 3-kinase (PI3k) and Akt signaling pathway has been suggested to mediate migration in various cancer cells. The antisense-uPA clones also had less phosphorylated PI3k and Akt than control cells, a finding associated with decreased cell migration, G2/M-phase arrest, and decreased clonogenic survival. Decreased activation of PI3k and the antiapoptotic factor Akt was not sufficient to induce apoptosis in the antisense-uPA clones, but staurosporine sensitized them to apoptosis to a greater extent than control cells. These results indicate that PI3k/Akt pathway is involved in the signaling cascade required to induce cell migration and that uPA has a direct role in regulating migration.
journal_name
Oncogenejournal_title
Oncogeneauthors
Chandrasekar N,Mohanam S,Gujrati M,Olivero WC,Dinh DH,Rao JSdoi
10.1038/sj.onc.1206164subject
Has Abstractpub_date
2003-01-23 00:00:00pages
392-400issue
3eissn
0950-9232issn
1476-5594pii
1206164journal_volume
22pub_type
杂志文章相关文献
ONCOGENE文献大全abstract::The effect of p53-dependent cell-cycle arrest and senescence on Emu-myc-induced B-cell lymphoma development remains controversial. To address this question, we crossed Emu-myc mice with the p53(515C) mutant mouse, encoding the mutant p53R172P protein that retains the ability to activate the cell-cycle inhibitor and se...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/onc.2009.423
更新日期:2010-03-04 00:00:00
abstract::NF-kappaB is known to exert a cytoprotective action against TNF-alpha-induced apoptosis. To study the role of NF-kappaB in various TNF-alpha-treated epithelial cell lines, we generated stable transfectants overexpressing a mutated unresponsive form of the IkappaBalpha inhibitor (MT cells). As NF-kappaB prevented TNF-a...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1205489
更新日期:2002-05-30 00:00:00
abstract::Cells in culture become competent to replicate in the absence of growth factor after progressing beyond the late G1 restriction point, suggesting that a set of genes expressed during G1 phase is sufficient to trigger completion of the cell cycle. However, this has not been demonstrated in an in vivo system. In this st...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1204248
更新日期:2001-04-05 00:00:00
abstract::The E2F1 transcription factor binds to sites within the promoters of a number of cell cycle regulated genes through a basic-helix-loop-helix motif (bHLH). It is shown here that the basic region of E2F1 is distinct from that of all other bHLH proteins. The center of the basic region contains a helix breaking proline-gl...
journal_title:Oncogene
pub_type: 杂志文章
doi:
更新日期:1994-04-01 00:00:00
abstract::Local intravitreal or intra-arterial chemotherapy has improved therapeutic success for the pediatric cancer retinoblastoma (RB), but toxicity remains a major caveat. RB initiates primarily with RB1 loss or, rarely, MYCN amplification, but the critical downstream networks are incompletely understood. We set out to unco...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/s41388-020-1372-7
更新日期:2020-07-01 00:00:00
abstract::Mutations of the retinoblastoma tumor-suppressor gene (RB1) or components regulating the CDK-RB-E2F pathway have been identified in nearly every human malignancy. Re-establishing cell cycle control through cyclin-dependent kinase (CDK) inhibition has therefore emerged as an attractive option in the development of targ...
journal_title:Oncogene
pub_type: 杂志文章,评审
doi:10.1038/onc.2016.32
更新日期:2016-09-15 00:00:00
abstract::Hec1 (highly expressed in cancer 1) or Nek2 (NIMA-related kinase 2) is often overexpressed in cancers with poor prognosis. Both are critical mitotic regulators, and phosphorylation of Hec1 S165 by Nek2 is required for proper chromosome segregation. Therefore, inactivation of Hec1 and Nek2 by targeting their interactio...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/onc.2014.67
更新日期:2015-03-05 00:00:00
abstract::RNA-binding proteins play key roles in the posttranscriptional regulation of mRNA during cancer progression. Here, we show that RNA-binding motif protein 43 (RBM43) is significantly downregulated in human tumors, and its low expression is correlated with poor prognosis in patients with HCC. Overexpression of RBM43 sup...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/s41388-020-1380-7
更新日期:2020-08-01 00:00:00
abstract::A hallmark of plasma cells is the expression of syndecan-1, which has major functions in epithelial cells, in particular as the coreceptor of heparin-binding growth factors. We previously found that heparin-binding epidermal growth factor-like growth factor (HB-EGF) is a growth factor for malignant plasma cells. As am...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1208536
更新日期:2005-05-12 00:00:00
abstract::The E3 ligase S-phase kinase-associated protein 2(Skp2) is overexpressed in human cancers and correlated with poor prognosis, but its contributions to tumorigenesis and chemoresistance in nasopharyngeal carcinoma (NPC) are not evident. Herein we show that Skp2 is highly expressed in NPC tumor tissues and cell lines. K...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/s41388-019-0955-7
更新日期:2019-12-01 00:00:00
abstract::Targeted therapeutics, such as those abrogating hypoxia inducible factor (HIF)/vascular endothelial growth factor signaling, are initially effective against kidney cancer (or renal cell carcinoma, RCC); however, drug resistance frequently occurs via subsequent activation of alternative pathways. Through genome-scale i...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/onc.2016.510
更新日期:2017-06-22 00:00:00
abstract::A better understanding of the link between cellular metabolism and tumorigenesis is needed. Here, we report characterization of a novel protein named coiled-coil helix tumor and metabolism 1 (CHTM1). We have found that CHTM1 is associated with cancer and cellular metabolism. CHTM1 localizes to mitochondria and cytosol...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/s41388-017-0051-9
更新日期:2018-04-01 00:00:00
abstract::Ufo/Axl belongs to a new family of receptor tyrosine kinases with an extracellular structure similar to that of neural cell adhesion molecules. In order to elucidate intracellular signaling, the cytoplasmic moiety of Ufo/Axl was used to screen an expression library according to the CORT (cloning of receptor targets) m...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1201123
更新日期:1997-06-05 00:00:00
abstract::The Notch ligand delta-like ligand 4 (DLL4) is an essential component expressed by endothelial tip cells during angiogenic sprouting. We have described a conceptually novel therapeutic strategy for targeting tumor angiogenesis and endothelial tip cells based on DNA vaccination against DLL4. Immunization with DLL4-enco...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/onc.2010.176
更新日期:2010-07-29 00:00:00
abstract::An essential mode of acquired resistance to radiotherapy (RT) appears to be promotion of tumor cell motility and invasiveness in various cancer types, including glioblastoma, a process resembling 'evasive resistance'. Hence, a logical advancement of RT would be to identify suitable complementary treatment strategies, ...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/onc.2012.137
更新日期:2013-02-28 00:00:00
abstract::While studying Bim, a BH3-only proapoptotic protein, we identified an approximately 36 kDa protein, which was abundantly expressed in all five strains of primary normal human prostate (NHP) epithelial cells but significantly reduced or lost in seven prostate cancer cell lines. The approximately 36 kDa protein was subs...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1206196
更新日期:2003-03-13 00:00:00
abstract::Pleckstrin homology domain leucine-rich repeat protein phosphatase 2 (PHLPP2) is a tumor suppressor that catalyzes the de-phosphorylation of the AGC kinases, while p27 acts as a tumor suppressor that regulates cell cycle, apoptosis, and cell motility. Our previous studies have identified that PHLPP2 participates in in...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/s41388-018-0374-1
更新日期:2018-10-01 00:00:00
abstract::Galectin-3 is a multifunctional carbohydrate-binding protein found in the nucleus, cytoplasm and the extracellular milieu. Nuclear galectin-3 expression is associated with cell proliferation, and its role in pre-mRNA splicing has been suggested. In this report, we investigated the role of galectin-3 on cyclin D(1) gen...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1205820
更新日期:2002-11-14 00:00:00
abstract::Cancer is classically considered as a genetic and, more recently, epigenetic multistep disease. Despite seminal studies in the 1920s by Warburg showing a characteristic metabolic pattern for tumors, cancer bioenergetics has often been relegated to the backwaters of cancer biology. This review aims to provide a histori...
journal_title:Oncogene
pub_type: 历史文章,杂志文章,评审
doi:10.1038/onc.2011.576
更新日期:2012-09-06 00:00:00
abstract::The chicken c-ets-1 locus encodes two transcription factors, p54c-ets-1 and p68c-ets-1 that differ in their N-termini, encoded respectively by the I54 and alpha beta exons. p68c-ets-1 equivalents are only found in birds and reptiles while p54c-ets-1 is widely conserved in vertebrates, from amphibians to mammals. Thus,...
journal_title:Oncogene
pub_type: 杂志文章
doi:
更新日期:1994-11-01 00:00:00
abstract::The RET proto-oncogene encodes a functional receptor tyrosine kinase (Ret) for the Glial cell line Derived Neurotrophic Factor (GDNF). RET is involved in several neoplastic and non-neoplastic human diseases. Oncogenic activation of RET is detected in human papillary thyroid tumours and in multiple endocrine neoplasia ...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1201778
更新日期:1998-05-14 00:00:00
abstract::Ewing sarcoma is characterized by the expression of the chimeric EWSR1-FLI1 transcription factor. Proteomic analyses indicate that the decrease of EWSR1-FLI1 expression leads to major changes in effectors of the dynamics of the actin cytoskeleton and the adhesion processes with a shift from cell-to-cell to cell-matrix...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/onc.2016.498
更新日期:2017-06-22 00:00:00
abstract::beta-Catenin, a component of the Wnt signaling pathway, is a coactivator of human androgen receptor (hAR) transcriptional activity. Here, we show that Wnt signaling also influences androgen-mediated signaling through its ability to regulate hAR mRNA and protein in prostate cancer (PCa) cells. Three functional LEF-1/TC...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1209366
更新日期:2006-06-08 00:00:00
abstract::Prolonged activation of protein kinase Cs (PKCs) by long-term treatment of cells with phorbol ester tumor promoters down-regulates the expression of many PKCs. To investigate the molecular mechanisms involved in the down-regulation of PKC eta, we expressed the novel PKCs eta and θ and various mutant forms in bab...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1203779
更新日期:2000-08-31 00:00:00
abstract::We determined whether proteins encoded by the nm23/nucleoside diphosphate (NDP) kinase gene, a potential metastasis-suppressor gene, are expressed on the cell surface. Monoclonal antibodies (mAb) specific for nm23-H1 or H2 proteins were prepared using the corresponding fusion proteins with glutathione S-transferase (G...
journal_title:Oncogene
pub_type: 杂志文章
doi:
更新日期:1993-05-01 00:00:00
abstract::The checkpoint sliding-clamp complex, Rad9/Rad1/Hus1, plays a critical role during initiation of checkpoint signals in response to DNA damage and replication disruption. We investigated the impact of loss of Rad1 on checkpoint function and on DNA replication in mammalian cells. We show that RAD1 is an essential gene f...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1207753
更新日期:2004-07-22 00:00:00
abstract::Gastric cancer (GC) is one of the most common tumors and the molecular mechanism underlying its metastasis is still largely unclear. Here, we show that miR-25 was overexpressed in plasma and primary tumor tissues of GC patients with tumor node metastasis stage (III or IV) or lymph node metastasis. MiR-25 inhibition si...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/onc.2014.214
更新日期:2015-05-14 00:00:00
abstract::Evidence from murine fibroblast models and human breast cancer cells indicates that c-Src and human EGF receptor (HER1) synergize to enhance neoplastic growth of mammary epithelial cells. To investigate whether interactions between c-Src and other HER family members may also play a role in breast tumor progression, we...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1204205
更新日期:2001-03-22 00:00:00
abstract::We have sought to identify and isolate target genes for the zinc finger protein, EVI-1, which has been implicated in the genesis of myelogenous leukemia both in mouse and human. We have approached this with a two-step selection: we first selected for genomic fragments of mouse DNA that bind to the protein with high af...
journal_title:Oncogene
pub_type: 杂志文章
doi:10.1038/sj.onc.1202331
更新日期:1998-09-24 00:00:00
abstract::We have isolated a candidate tumor suppressor gene from a 600-kb region on chromosome 8p21.3-p22 that is commonly deleted in sporadic hepatocellular carcinomas (HCC), colorectal cancers (CRC), and non-small cell lung cancers (NSCLC). As this gene encodes a protein of 375 amino acids that bears significant sequence sim...
journal_title:Oncogene
pub_type: 杂志文章
doi:
更新日期:1995-03-02 00:00:00