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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:dateCreated |
1993-12-27
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pubmed:abstractText |
Both tumour necrosis factor alpha (TNF-alpha) and phorbol 12-myristate 13-acetate (PMA) stimulated human cytomegalovirus (HCMV) major immediate early (IE) enhancer/promoter activity in the HL-60 granulocyte/monocyte progenitor cell line when added to transfected cells. In U-937 monocytic cells, by contrast, TNF-alpha had no stimulatory effect and the addition of PMA produced only marginal stimulation. In the mature THP-1 monocytic cell line and in differentiated HL-60 cells, addition of TNF-alpha caused inhibition of the IE enhancer/promoter activity. The stimulating effect of PMA, as observed in the other cell lines, however, remained. Thus the effect of TNF-alpha on the major IE enhancer/promoter activity is determined by the degree of differentiation of the infected cells. Unlike TNF-alpha and PMA, the interleukins IL-1, IL-3, IL-6 as well as the cytokine GM-CSF were found to have no detectable influence on the activity of the IE enhancer/promoter activity which, likewise, was not affected by the presence of the modulator sequence. Since premonocytic cells are suggested to be sites of HCMV latency, the stimulation by TNF-alpha could be of potential pathophysiological significance.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Nov
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pubmed:issn |
0022-1317
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
74 ( Pt 11)
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
2333-8
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:8245850-Cell Line,
pubmed-meshheading:8245850-Cytomegalovirus,
pubmed-meshheading:8245850-Enhancer Elements, Genetic,
pubmed-meshheading:8245850-Gene Expression Regulation, Viral,
pubmed-meshheading:8245850-Humans,
pubmed-meshheading:8245850-Immediate-Early Proteins,
pubmed-meshheading:8245850-Monocytes,
pubmed-meshheading:8245850-Promoter Regions, Genetic,
pubmed-meshheading:8245850-Tetradecanoylphorbol Acetate,
pubmed-meshheading:8245850-Transfection,
pubmed-meshheading:8245850-Tumor Necrosis Factor-alpha
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pubmed:year |
1993
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pubmed:articleTitle |
Tumour necrosis factor alpha stimulates the activity of the human cytomegalovirus major immediate early enhancer/promoter in immature monocytic cells.
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pubmed:affiliation |
Institute of Virology, Humboldt University Medical School (Charité), Berlin, Germany.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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