Linked Life Data

11078809

Source:http://linkedlifedata.com/resource/pubmed/id/11078809

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2000-12-8
pubmed:abstractText
Three major components of telomerase, i.e., human telomerase RNA (hTERC), telomerase-associated protein (TEP1), and the human telomerase reverse transcriptase (hTERT), have been identified. Among them, TERT expression is very closely related to telomerase activity. The purpose of this study was to evaluate the implications of TERT expression and telomerase activity in endometrial cancer. Fresh surgical specimens of 36 endometrial carcinomas (CA group) and 9 samples of postmenopausal endometrial tissue without malignancy (NP group) were obtained at operation in our hospital. These specimens were analyzed for telomerase activity and TERT expression by TRAP assay and RT-PCR, respectively, and the detection and quantitative analysis were made. The results for endometrial cancer were compared with those for normal endometrium and with the clinical data. In the CA group, TERT expression was detected in 35/36 subjects (97.2%), whereas in 1/9 subject (11.1%) from the NP group. Relative TERT mRNA expression was 0.50 in the CA group, and this was significantly higher compared with the level of 0.10 in the NP group (p<0.05). Telomerase activity was detected in 34/36 subjects (94.4%) from the CA group and in 3/9 subjects (33.3%) from the NP group (p<0.05), while the RTA was 30.9 and 0.2, respectively (p<0.05). There was a significant correlation between the relative TERT expression and RTA (n=45, R=0.413, p<0.05). RTA was significantly higher at an advanced surgical stage (FIGO II, III or IV) than at an early stage (FIGO 0 or I) (52.4 vs. 20.4, p<0.05), but other clinical factors showed no relationship with TERT and RTA values. The detection and quantitative analysis of telomerase activity and TERT expression is helpful for distinguishing malignant from normal endometrium when the patient is postmenopausal, even if the tumor is very small or of low malignancy.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Dec
pubmed:issn
1019-6439
pubmed:author
pubmed:issnType
Print
pubmed:volume
17
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1225-30
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:11078809-Adenocarcinoma, pubmed-meshheading:11078809-Adult, pubmed-meshheading:11078809-Aged, pubmed-meshheading:11078809-Carcinoma, Adenosquamous, pubmed-meshheading:11078809-Carcinosarcoma, pubmed-meshheading:11078809-Chromosomes, Human, pubmed-meshheading:11078809-DNA-Binding Proteins, pubmed-meshheading:11078809-Endometrial Neoplasms, pubmed-meshheading:11078809-Endometrium, pubmed-meshheading:11078809-Enzyme Induction, pubmed-meshheading:11078809-Female, pubmed-meshheading:11078809-Gene Expression Regulation, Neoplastic, pubmed-meshheading:11078809-Humans, pubmed-meshheading:11078809-Leiomyosarcoma, pubmed-meshheading:11078809-Metaplasia, pubmed-meshheading:11078809-Middle Aged, pubmed-meshheading:11078809-Neoplasm Proteins, pubmed-meshheading:11078809-Postmenopause, pubmed-meshheading:11078809-RNA, pubmed-meshheading:11078809-RNA, Messenger, pubmed-meshheading:11078809-RNA, Neoplasm, pubmed-meshheading:11078809-Reverse Transcriptase Polymerase Chain Reaction, pubmed-meshheading:11078809-Telomerase, pubmed-meshheading:11078809-Tumor Markers, Biological
pubmed:year
2000
pubmed:articleTitle
Expression of telomerase reverse transcriptase mRNA and its quantitative analysis in human endometrial cancer.
pubmed:affiliation
Department of Obstetrics and Gynecology, Hiroshima University School of Medicine, Hiroshima, Japan. takafos@mcai.med.hiroshima-u.ac.jp
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't