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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
|
pubmed:dateCreated |
1982-5-21
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pubmed:abstractText |
Infection of mouse L929 cells with Mengo virus resulted in a rapid shut-off of cellular RNA synthesis followed within the first hours post infection by a gradual decrease in host protein synthesis. Pretreatment of the cells with high doses of interferon, blocking viral multiplication, did not affect the virus-induced shut-off of host macromolecular synthesis. In these interferon-treated cells the 2',5'A-activated nuclease may account for the degradation of viral RNA, soon after its replication. However, the inhibition of host protein synthesis could not be explained by this mechanism. Poly(A)-containing RNA, present in interferon-treated and infected cells, amounted to as much as 70% of that present in interferon-treated, noninfected cells. On the other hand, extracted cytoplasmic RNA was efficiently translated in a reticulocyte lysate, showing that extensive mRNA degradation was not involved in the inhibition of host protein synthesis. In the continued presence of interferon, the virus-induced shut-off was found to be transient. Late in infection, RNA synthesis was found to recover, followed by recovery of protein synthesis and survival of the cells.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
|
pubmed:chemical | |
pubmed:status |
MEDLINE
|
pubmed:month |
Jun
|
pubmed:issn |
0166-3542
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pubmed:author | |
pubmed:issnType |
Print
|
pubmed:volume |
1
|
pubmed:owner |
NLM
|
pubmed:authorsComplete |
Y
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pubmed:pagination |
123-34
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:6175273-Enterovirus Infections,
pubmed-meshheading:6175273-Interferons,
pubmed-meshheading:6175273-Kinetics,
pubmed-meshheading:6175273-L Cells (Cell Line),
pubmed-meshheading:6175273-Macromolecular Substances,
pubmed-meshheading:6175273-Mengovirus,
pubmed-meshheading:6175273-Nucleic Acid Hybridization,
pubmed-meshheading:6175273-Protein Biosynthesis,
pubmed-meshheading:6175273-RNA,
pubmed-meshheading:6175273-Time Factors
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pubmed:year |
1981
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pubmed:articleTitle |
Effect of interferon on transient shut-off of cellular RNA and protein synthesis induced by Mengo virus infection.
|
pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
|