Clues to quality of journals
Open Access Policy of Helmholtz Association 2016
CC Licencences
Publication Metrics
Home
Deutsch
New EVA Application
Advanced Search
Browse by ...
Publication overview
Statistics (last 5 years)
OA Publications
Submit Publication
Import publication from...
Report missing publication
Contact persons
Help
Text
Endnote (RIS)
BibTeX
Publ. Version/Full Text Volltext
DOI
PMC
 |
Open Access Gold |
|
as soon as is submitted to ZB.
Abortive lytic reactivation of KSHV in CBF1/CSL deficient human B cell lines.
PLoS Pathog. 9:e1003336 (2013)
Since Kaposi's sarcoma associated herpesvirus (KSHV) establishes a persistent infection in human B cells, B cells are a critical compartment for viral pathogenesis. RTA, the replication and transcription activator of KSHV, can either directly bind to DNA or use cellular DNA binding factors including CBF1/CSL as DNA adaptors. In addition, the viral factors LANA1 and vIRF4 are known to bind to CBF1/CSL and modulate RTA activity. To analyze the contribution of CBF1/CSL to reactivation in human B cells, we have successfully infected DG75 and DG75 CBF1/CSL knock-out cell lines with recombinant KSHV.219 and selected for viral maintenance by selective medium. Both lines maintained the virus irrespective of their CBF1/CSL status. Viral reactivation could be initiated in both B cell lines but viral genome replication was attenuated in CBF1/CSL deficient lines, which also failed to produce detectable levels of infectious virus. Induction of immediate early, early and late viral genes was impaired in CBF1/CSL deficient cells at multiple stages of the reactivation process but could be restored to wild-type levels by reintroduction of CBF1/CSL. To identify additional viral RTA target genes, which are directly controlled by CBF1/CSL, we analyzed promoters of a selected subset of viral genes. We show that the induction of the late viral genes ORF29a and ORF65 by RTA is strongly enhanced by CBF1/CSL. Orthologs of ORF29a in other herpesviruses are part of the terminase complex required for viral packaging. ORF65 encodes the small capsid protein essential for capsid shell assembly. Our study demonstrates for the first time that in human B cells viral replication can be initiated in the absence of CBF1/CSL but the reactivation process is severely attenuated at all stages and does not lead to virion production. Thus, CBF1/CSL acts as a global hub which is used by the virus to coordinate the lytic cascade.
Impact Factor
Scopus SNIP
Web of Science
Times Cited
Times Cited
Scopus
Cited By
Cited By
Altmetric
8.136
1.725
17
20
Annotations
Special Publikation
Hide on homepage
Publication type
Article: Journal article
Document type
Scientific Article
Keywords
Sarcoma-associated Herpesvirus ; Rbp-j-kappa ; Major Downstream Effector ; Notch Signaling Pathway ; Regulatory Factor 4 ; Switch Protein Rta ; Kaposis-sarcoma ; Gene-expression ; Nuclear Antigen ; Cultured-cells
Language
english
Publication Year
2013
HGF-reported in Year
2013
ISSN (print) / ISBN
1553-7366
e-ISSN
1553-7374
Journal
PLoS Pathogens
Quellenangaben
Volume: 9,
Issue: 5,
Article Number: e1003336
Publisher
Public Library of Science (PLoS)
Reviewing status
Peer reviewed
POF-Topic(s)
30203 - Molecular Targets and Therapies
30504 - Mechanisms of Genetic and Environmental Influences on Health and Disease
30504 - Mechanisms of Genetic and Environmental Influences on Health and Disease
Research field(s)
Immune Response and Infection
PSP Element(s)
G-501500-002
G-501793-001
G-501793-001
PubMed ID
23696732
WOS ID
WOS:000320032800015
Scopus ID
84878504319
Erfassungsdatum
2013-07-12