Linked Life Data

17960611

Source:http://linkedlifedata.com/resource/pubmed/id/17960611

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
4
pubmed:dateCreated
2007-12-20
pubmed:abstractText
Although high-risk human papillomavirus (HPV) infection plays a major role in the development of cervical cancer, additive oncogenic events are involved as well. One key event involves increased activity of telomerase resulting from a deregulated expression of its catalytic subunit hTERT. Our previous microcell-mediated chromosome transfer studies revealed that introduction of human chromosome 6 in the HPV16-immortalized keratinocyte cell line FK16A and in the HPV16-containing cervical cancer cell line SiHa induced growth arrest, resulting from a repression of hTERT mRNA expression and telomerase activity. Here, this model was used to analyze expression profiles associated with hTERT deregulation in HPV-transformed cells. Microarray expression analysis of 12 FK16A/chromosome 6 hybrids, 4 of which were negative for endogenous hTERT and 8 of which were positive for endogenous hTERT, resulted in the identification of 164 differentially expressed genes. Differential expression of a selection of 5 genes was verified by real-time RT-PCR. Of these 164 genes, 32 were also differentially expressed in other HPV transformed cells with deregulated hTERT. For 2 of these genes, encoding AQP3 and MGP, altered expression in hTERT positive cervical carcinomas was confirmed by real-time RT-PCR and immunohistochemistry, respectively. Moreover, increased MGP protein expression was significantly more frequent in high-grade cervical premalignant lesions with elevated hTERT mRNA expression compared to those without. In summary, we identified 32 candidate biomarkers for deregulated hTERT mRNA expression, which may enable the identification of cervical premalignant lesions that are at highest risk to progress to invasive cancer.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
1097-0215
pubmed:author
pubmed:copyrightInfo
(c) 2007 Wiley-Liss, Inc.
pubmed:issnType
Electronic
pubmed:day
15
pubmed:volume
122
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
877-88
pubmed:meshHeading
pubmed-meshheading:17960611-Aquaporin 3, pubmed-meshheading:17960611-Calcium-Binding Proteins, pubmed-meshheading:17960611-Carcinoma, Squamous Cell, pubmed-meshheading:17960611-Cell Transformation, Viral, pubmed-meshheading:17960611-Cervical Intraepithelial Neoplasia, pubmed-meshheading:17960611-Cervix Uteri, pubmed-meshheading:17960611-DNA, Viral, pubmed-meshheading:17960611-Epithelium, pubmed-meshheading:17960611-Extracellular Matrix Proteins, pubmed-meshheading:17960611-Female, pubmed-meshheading:17960611-Gene Expression Profiling, pubmed-meshheading:17960611-Humans, pubmed-meshheading:17960611-Keratinocytes, pubmed-meshheading:17960611-Microarray Analysis, pubmed-meshheading:17960611-Papillomaviridae, pubmed-meshheading:17960611-Papillomavirus Infections, pubmed-meshheading:17960611-RNA, Messenger, pubmed-meshheading:17960611-Reverse Transcriptase Polymerase Chain Reaction, pubmed-meshheading:17960611-Telomerase, pubmed-meshheading:17960611-Tumor Markers, Biological, pubmed-meshheading:17960611-Uterine Cervical Neoplasms
pubmed:year
2008
pubmed:articleTitle
Gene expression profiling to identify markers associated with deregulated hTERT in HPV-transformed keratinocytes and cervical cancer.
pubmed:affiliation
Department of Pathology, VU University Medical Center, Amsterdam, The Netherlands.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't