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PredicateObject
rdf:type
lifeskim:mentions
pubmed:dateCreated
1996-6-27
pubmed:abstractText
The mechanism and the kinetics of rubella virus (RV) penetration into Vero cells were studied. By using pronase or acid treatment to inactivate virus which had adsorbed to cell membrane but had not been internalized, it was found that a period of 7 h was required in order for all of the adsorbed virus to enter the host cells. Lysosomotropic agents (monensin, methylamine, ammonium chloride and chloroquine) were used to study the mechanism by which RV penetrates host cells. Virus replication was inhibited if treatment of cells with these compounds was performed for at least 9 h after infection. However, if extracellular adsorbed virions were eliminated by acid treatment following removal of the lysosomotropic compounds, RV replication was completely inhibited by treatment with these drugs for any time period after adsorption. This indicated that the prolonged period of treatment with these compounds necessary to inhibit virus replication is due to the slow rate of RV internalization. None of the compounds had any effect on infection initiated by transfection of RV RNA, confirming that these drugs were exerting their inhibitory activity at penetration. The inhibition of RV replication by lysosomotropic compounds indicates that RV penetrates host cells by the endosomal pathway.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0022-1317
pubmed:author
pubmed:issnType
Print
pubmed:volume
77 ( Pt 2 )
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
303-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
1996
pubmed:articleTitle
Pathway of rubella virus infectious entry into Vero cells.
pubmed:affiliation
Istituto Pasteur-Fondazione Cenci Bolognetti, Institute of Microbiology, School of Medicine, University La Sapienza, Rome, Italy.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't