Abstract:
:We investigated trans-activating effects of the full-length E6 protein of HPV-16 (16E6) and the E6 protein of HPV-11 (11E6) on the PE1E4 promoter of HPV-11 in C33A cells which lack normal function of p53. 16E6 showed no significant activation of the reporter plasmid containing PE1E4 and the upstream sequence, including the long control region (LCR). In contrast, 11E6 activated the promoter in a dose dependent manner, while relatively high doses of 11E6 were required to activate the promoter. When a reporter plasmid, which lacked LCR was used, however, both 16E6 and 11E6 activated the promoter, though high doses of 16E6 suppressed activity. Using deletion plasmids we further showed that 11E6 activated transcriptions from any mutant reporter plasmids as far as the constructs have promoter activities. Finally, we showed that 11E6 enhanced the expression levels of c-fos protein by infection of C33A cells with 11E6-expressing recombinant adenovirus. These findings suggested that E6 proteins of both
journal_name
Int J Oncoljournal_title
International journal of oncologyauthors
Tomita Y,Asano Y,Shirasawa Hdoi
10.3892/ijo.13.6.1253subject
Has Abstractpub_date
1998-12-01 00:00:00pages
1253-8issue
6eissn
1019-6439issn
1791-2423journal_volume
13pub_type
杂志文章abstract::Metastatic colorectal cancer is the second most common cause of cancer mortality. The liver is a common site of metastasis and only a minority of patients with liver metastases are candidates for potentially curative surgical resection. The treatment of patients with unresectable liver tumors is a major clinical probl...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2005-07-01 00:00:00
abstract::Early-onset breast cancer is one of the most common malignancies and causes of death among young women, and its incidence is increasing. In the present study, we aimed to investigate the epigenetic modifications of the breast cancer type 1 susceptibility gene (BRCA1) in breast tissues and blood cells derived from wome...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2011.1021
更新日期:2011-07-01 00:00:00
abstract::Curcumin shows growth-inhibition against tumor cells through multi-target mechanisms. Nevertheless, the poor stability and pharmacokinetics considerably limit its clinical functions. Increased effort has been put into the chemical alteration of curcumin to find potential analogues with improved bioavailability and ant...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2016.3425
更新日期:2016-05-01 00:00:00
abstract::Mutations of p53 tumor suppressor gene increase with tumor progression in colorectal cancers. In this study, we examined the expressions of p33ING1, p14ARF, MDM2 and p21WAF1 mRNA in 25 advanced colorectal cancers by quantitative RT-PCR method, and compared the expression levels of p33ING1, p14ARF, p21WAF1 and MDM2 in ...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2004-10-01 00:00:00
abstract::The isolation of circulating tumor cells (CTCs) from the blood of patients afflicted with solid malignant tumors becomes increasingly important as it may serve as a 'liquid biopsy' with the potential of monitoring the course of the cancer disease and its response to cancer therapy, with subsequent molecular characteri...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2012.1557
更新日期:2012-10-01 00:00:00
abstract::The ADAMs (A disintegrin and metalloproteinase) are a family of cell-surface membrane glycoproteins, whose multidomain structure enables diverse roles in a wide range of cellular processes. Accumulating evidence associates an increased expression of individual ADAM family members with various types of cancer, and we i...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2005-01-01 00:00:00
abstract::The epithelial-to-mesenchymal transition (EMT) confers an aggressive subtype associated with chemotherapy resistance in epithelial cancers. However, the mechanisms underlying the EMT and its associated signaling dysfunctions are still poorly understood. In two genetic models of MCF-...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2012.1457
更新日期:2012-07-01 00:00:00
abstract::Ligands of the EGF/Heregulin family control the growth of epithelial cells by binding to receptors of the erbB family. By searching a large database of cDNA sequences at Human Genome Sciences Inc. we have identified a new encoded protein sequence containing all the conserved elements of the EGF/Heregulin family. The s...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.13.5.1061
更新日期:1998-11-01 00:00:00
abstract::Delivery of electric pulses to an established solid tumor augments the permeability of cell membrane and increases the susceptibility of tumors to an anti-cancer agent that is administered in the vicinity of tumors. Forced expression of the wild-type p53 gene in tumor cells that have non-functional p53 gene(s) can als...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.18.4.825
更新日期:2001-04-01 00:00:00
abstract::Neuroblastoma is a paediatric solid tumor characterized by recurrent genomic abnormalities of prognostic importance. One of the most commonly observed abnormalities is deletion of the short arm of chromosome 1 and reduced expression of cancer related genes in this chromosomal arm. The long isoform of the retinoblastom...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo_00000784
更新日期:2010-11-01 00:00:00
abstract::Side population (SP) cells are isolated from various tissues and cell lines based on the exclusion of DNA-binding dye Hoechst 33,342 and exhibit potent stem cell characteristics. There have been few previous reports of SP cells in head and neck cancer cell lines. Thus, we isolated SP cells from oral squamous cell carc...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2009-08-01 00:00:00
abstract::Gallbladder cancer (GBC) is one of the most unfavorable prognostic tumor, and immediate growth and distant metastasis are important factors associated with the poor prognosis of patients with this disease. Standard and variant isoforms of CD44 are associated with tumor growth, metastasis, and epithelial-mesenchymal tr...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2017.4063
更新日期:2017-09-01 00:00:00
abstract::Loss of chromosome sequences at 13q14 (Rbl) and 17p13 (p53) associated with squamous cell carcinoma of head and neck (SCCHN) was evaluated in 12 recurrent tumors and 51 primary tumors from 63 patients. The incidence of LOH at 17p13 was 19 of 50 (38%) tumors, and at 13q14 was 21 of 57 (37%). LOH affecting Rbl and/or p5...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.10.6.1235
更新日期:1997-06-01 00:00:00
abstract::An ETS family member, ETS Related Gene (ERG) is involved in the Ewing family of tumors as well as leukemias. Rearrangement of the ERG gene with the TMPRSS2 gene has been identified in the majority of prostate cancer patients. Additionally, overexpression of ERG is associated with unfavorable prognosis in prostate canc...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2011.1014
更新日期:2011-07-01 00:00:00
abstract::To investigate the usefulness of oral doxifluridine (5'-DFUR), an active intermediate metabolite of capecitabine (XELODA), in gastric cancer patients after curative resection, we conducted a phase III randomized controlled study to compare oral 5'-DFUR and oral 5-fluorouracil (5-FU). 485 gastric cancer patients with S...
journal_title:International journal of oncology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.3892/ijo.16.5.1021
更新日期:2000-05-01 00:00:00
abstract::Globally, breast cancer in women is the leading cause of cancer death. This fact has generated an interest to obtain insight into breast tumorigenesis and also to develop drugs to control the disease. Ras is a proto-oncogene that is activated as a response to extracellular signals. As a member of the Ras GTPase superf...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2015.3298
更新日期:2016-02-01 00:00:00
abstract::The hematogenous metastasis of cancer consists of a multistep process. It is surmised that a number of interactions between cancer and endothelial cells occur, with cell adhesion molecules playing certain roles in this process. The authors conducted an investigation on the interaction between human cancer cells and cu...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.10.6.1173
更新日期:1997-06-01 00:00:00
abstract::In the multistep progressive pathogenesis of human breast cancer, comedo ductal carcinoma in situ (DCIS) represents a preinvasive precursor lesion for therapy resistant invasive cancer. Human tissue derived cell culture models exhibiting molecular similarities to clinical DCIS facilitate an important preclinical mecha...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2002-10-01 00:00:00
abstract::Long noncoding RNA (lncRNA) MAF BZIP transcription factor G antisense RNA 1 (MAFG‑AS1) has been demonstrated to serve an important role in the progression of various types of cancer, whereas its role in breast cancer has not been fully elucidated. The present study aimed to explore the potential role and underlying me...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2020.5150
更新日期:2020-11-20 00:00:00
abstract::Peripheral blood was examined for the presence of tumor cells at multiple time points over a one-year period in 45 patients with a history of surgical resection of breast carcinoma. The number of circulating epithelial cells in 8 of 8 patients with clinically active disease concurred or preceded changes in the disease...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.17.3.573
更新日期:2000-09-01 00:00:00
abstract::Medulloblastoma is the most common malignant brain tumor in childhood. The most prevalent chromosomal abnormalities are isochromosome 17q and loss of 17p, the location of the tumor suppressor gene p53. Mutations in the p53 gene in medulloblastoma are relatively infrequent but have recently been correlated to poor prog...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2010.884
更新日期:2011-03-01 00:00:00
abstract::Sixty-four colorectal carcinomas were evaluated for allelic loss of chromosomes 17p and 5q, as well as point mutation of the p53 tumor suppressor gene. Allelic loss of chromosomes 5q and 17p were found to be weakly associated, whereas point mutation of the p53 gene was found to be more strongly associated with chromos...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.5.3.539
更新日期:1994-09-01 00:00:00
abstract::Transcriptional silencing of the DNA repair protein, O6-methylguanine-DNA methyltransferase (MGMT), occurs only in malignant or transformed cell lines, and such MGMT-deficient cells are hypersensitive to chemotherapeutic alkylating agents such as 1, 3-bis (2-chloroethyl)-1-nitrosourea (BCNU) and temozolomide. Previous...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.18.6.1187
更新日期:2001-06-01 00:00:00
abstract::The prognostic value of immunohistochemical staining of P53, BCL-2, p27kip1, PSA, AR and MIB-1 was compared with that of established prognostic variables (Gleason score, surgical margins, tumour volume) following radical prostatectomy. Five groups were selected: negative margins with stable serum PSA (n=11), negative ...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.14.4.785
更新日期:1999-04-01 00:00:00
abstract::Cytokines of the TGF beta family are thought to be involved in cellular growth control and are therefore likely candidates to regulate homeostasis of the prostate. We have analyzed immunohistochemically the expression of TGF-beta 3 in normal prostate (NP), benign prostate hyperplasia (BPH) and prostate cancer (PCa). I...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.11.6.1185
更新日期:1997-12-01 00:00:00
abstract::MicroRNA (miR) can exert various biological functions by targeting oncogenes or tumor suppressor genes in numerous human malignancies. Recent evidence has shown that miR-148a increases the drug sensitivity of various cancer cells. Herein, we show that ectopic expression of miR-148a induces apoptosis, reduces clonogeni...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2017.3851
更新日期:2017-03-01 00:00:00
abstract::Human squamous cell carcinomas frequently overexpress the epidermal growth factor receptor (EGFR) and this is often associated with poor prognosis in patients with these cancers. The high level of expression of the EGFR provides an important target for therapy and we and others have shown that monoclonal antibodies (m...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.13.2.335
更新日期:1998-08-01 00:00:00
abstract::In this study we investigated the relationship between the development of either HSILs (high-grade squamous intraepithelial lesions) or invasive cancers of the uterine cervix and the p53 codon 72 polymorphisms consisting of arginine (Arg)- or proline (Pro)-encoded allele in Japanese populations. Furthermore, we determ...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2002-09-01 00:00:00
abstract::Narrow band imaging (NBI) has been used in the gastrointestinal endoscopy field as a novel endoscopic imaging technique and has contributed to improved qualitative diagnosis and detection of lesions. However, there are only a few studies of use of NBI in the gynecology field. We applied NBI in flexible hysteroscopy at...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:10.3892/ijo.2011.1131
更新日期:2011-11-01 00:00:00
abstract::Retroviral infection of hTERT, the catalytic component of telomerase, into BJ fibroblasts (population doubling 28) resulted in reconstitution of telomerase activity, telomere maintenance, and extension of in vitro lifespan. The hTERT-infected cells also exhibited increased growth rate and colony forming efficiency rel...
journal_title:International journal of oncology
pub_type: 杂志文章
doi:
更新日期:2002-06-01 00:00:00