Suppression of CD8+ T cell recognition in the immediate-early phase of human cytomegalovirus infection.
J. Gen. Virol. 94, 376-386 (2013)
Human cytomegalovirus (HCMV) interferes with MHC class I-restricted antigen presentation and thereby reduces recognition by CD8+ T cells. This interference is primarily mediated by ER-resident glycoproteins that are encoded in the US2-11 region of the viral genome. Such a suppression of recognition would be of particular importance immediately after infection, because several immunodominant viral antigens are already present in the cell in this phase. However, it is not known which of the evasion proteins gpUS2-11 interfere with antigen presentation to CD8+ T cells at this time of infection. Here we address this question, using recombinant viruses (RV) that express only one of the immunoevasins gpUS2, gpUS3, or gpUS11. Infection with RV-US3 had only a limited impact on the presentation of peptides from the CD8+ T cell antigens IE1 and pp65 under immediate-early conditions imposed by cycloheximide-actinomycin D blocking. Unexpectedly, both RV-US2 and RV-US11 considerably impaired the recognition of IE1 and pp65 by CD8+ T cells, and both US2 and, to lesser extent, US11 were transcribed under IE conditions. Thus, gpUS2 and gpUS11 are key effectors of MHC class I immune evasion immediately after HCMV infection.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Typ der Hochschulschrift
Herausgeber
Schlagwörter
Class-i Molecules ; Immune Evasion Proteins ; Allogeneic Bone-marrow ; Heavy-chains ; Gene-products ; Peptide Translocation ; Endoplasmic-reticulum ; Antigen Presentation ; Surface Expression ; Us6 Glycoprotein
Keywords plus
Sprache
englisch
Veröffentlichungsjahr
2013
Prepublished im Jahr
HGF-Berichtsjahr
2013
ISSN (print) / ISBN
0022-1317
e-ISSN
1465-2099
ISBN
Bandtitel
Konferenztitel
Konferzenzdatum
Konferenzort
Konferenzband
Quellenangaben
Band: 94,
Heft: 2,
Seiten: 376-386
Artikelnummer: ,
Supplement: ,
Reihe
Verlag
Society for General Microbiology
Verlagsort
Tag d. mündl. Prüfung
0000-00-00
Betreuer
Gutachter
Prüfer
Topic
Hochschule
Hochschulort
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Veröffentlichungsdatum
0000-00-00
Anmeldedatum
0000-00-00
Anmelder/Inhaber
weitere Inhaber
Anmeldeland
Priorität
Begutachtungsstatus
Peer reviewed
POF Topic(s)
30504 - Mechanisms of Genetic and Environmental Influences on Health and Disease
30203 - Molecular Targets and Therapies
Forschungsfeld(er)
Immune Response and Infection
PSP-Element(e)
G-521700-001
G-501500-001
Förderungen
Copyright
Erfassungsdatum
2013-01-01