rdf:type |
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lifeskim:mentions |
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pubmed:issue |
5
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pubmed:dateCreated |
2001-8-23
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pubmed:abstractText |
To investigate the mechanism of synovial hyperplasia by human T-lymphotropic virus type I (HTLV-I) infection, the enzymatic activity of telomerase and expression of telomerase-related factors in HTLV-I infected synoviocytes were examined. Cultured synoviocytes obtained from four patients with osteoarthritis (OA) and four with traumatic joint disease (TJD) were infected by HTLV-I. Telomerase activity was detected by telomeric repeat amplification protocol (TRAP) assay. Expression of telomerase-related mRNAs such as telomerase reverse transcriptase (hTERT), telomerase RNA component (hTERC), and telomeric repeat binding factor 2 (TRF2) were also examined. Telomerase activity was detected in all HTLV-I-infected synoviocytes but not in uninfected synoviocytes. A remarkable induction of hTERT mRNA was observed in four of eight HTLV-I-infected synoviocytes, whereas expressions of hTERC, TRF2, and TEP-1 mRNAs were not changed. Our results clearly demonstrate that HTLV-I upregulates telomerase activity in synoviocytes probably via upregulation of hTERT activity. These findings suggest that telomerase activation in synoviocytes has an important role in upregulated proliferative activity of HAAP synoviocytes.
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pubmed:language |
eng
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pubmed:journal |
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pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Carrier Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/DNA Primers,
http://linkedlifedata.com/resource/pubmed/chemical/DNA-Binding Proteins,
http://linkedlifedata.com/resource/pubmed/chemical/RNA, Messenger,
http://linkedlifedata.com/resource/pubmed/chemical/RNA, Untranslated,
http://linkedlifedata.com/resource/pubmed/chemical/TEP1 protein, human,
http://linkedlifedata.com/resource/pubmed/chemical/Telomerase,
http://linkedlifedata.com/resource/pubmed/chemical/Telomeric Repeat Binding Protein 2,
http://linkedlifedata.com/resource/pubmed/chemical/hTR RNA
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pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0172-8172
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pubmed:author |
|
pubmed:issnType |
Print
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pubmed:volume |
20
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
175-9
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:11518036-Carrier Proteins,
pubmed-meshheading:11518036-Cell Division,
pubmed-meshheading:11518036-Cells, Cultured,
pubmed-meshheading:11518036-Coculture Techniques,
pubmed-meshheading:11518036-DNA Primers,
pubmed-meshheading:11518036-DNA-Binding Proteins,
pubmed-meshheading:11518036-Human T-lymphotropic virus 1,
pubmed-meshheading:11518036-Humans,
pubmed-meshheading:11518036-Osteoarthritis, Knee,
pubmed-meshheading:11518036-RNA, Messenger,
pubmed-meshheading:11518036-RNA, Untranslated,
pubmed-meshheading:11518036-Reverse Transcriptase Polymerase Chain Reaction,
pubmed-meshheading:11518036-Synovial Membrane,
pubmed-meshheading:11518036-Telomerase,
pubmed-meshheading:11518036-Telomeric Repeat Binding Protein 2,
pubmed-meshheading:11518036-Up-Regulation
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pubmed:year |
2001
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pubmed:articleTitle |
Infection of synoviocytes with HTLV-I induces telomerase activity.
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pubmed:affiliation |
Rheumatology, Immunology, and Genetics Program, Institute of Medical Science, St Marianna University School of Medicine, Kawasaki, Japan.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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