Linked Life Data

2155509

Source:http://linkedlifedata.com/resource/pubmed/id/2155509

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
1
pubmed:dateCreated
1990-4-4
pubmed:abstractText
Human herpesvirus 6 (HHV-6) is a newly identified lymphotropic herpesvirus. We have analyzed viral and host DNA replication in peripheral blood lymphocytes infected in the absence of drugs or infected in the presence of phosphonoacetic acid (PAA) or acyclovir (ACV). The results revealed the following: (i) Infection with HHV-6 resulted in the shutoff of host DNA replication. (ii) PAA at concentrations of 100 and 300 micrograms/ml significantly reduced virus replication. The drug inhibited viral DNA replication, whereas host cell DNA replication was not affected. This strongly suggests that HHV-6 encodes a PAA sensitive viral DNA polymerase. (iii) ACV at 20 microM did not interfere with virus production and virus spread. ACV at 100 microM only partly interfered with virus replication, whereas at 400 microM the block was more complete. Viral DNA replication was not affected by ACV at 20 microM. However, approximately 60 and 85% inhibition in viral DNA replication was observed in the presence of 100 and 400 microM of ACV. (iv) Assays for viral thymidine kinase (TK) revealed no significant increase in TK activity, whereas increased TK activity was noted following infection of the same peripheral blood lymphocytes with herpes simplex virus. Thus, either HHV-6 does not encode a tk enzyme which can phosphorylate ACV or the inefficient block may reflect lower sensitivity of the HHV-6 DNA polymerase to the drug.
pubmed:grant
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Mar
pubmed:issn
0042-6822
pubmed:author
pubmed:issnType
Print
pubmed:volume
175
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
199-210
pubmed:dateRevised
2007-11-14
pubmed:meshHeading
pubmed:year
1990
pubmed:articleTitle
The replication of viral and cellular DNA in human herpesvirus 6-infected cells.
pubmed:affiliation
Laboratory of Viral Diseases, National Institute of Allergy and Infectious Diseases, NIH, Rockville, Maryland 20852.
pubmed:publicationType
Journal Article, Research Support, U.S. Gov't, P.H.S., Research Support, Non-U.S. Gov't