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Pregled bibliografske jedinice broj: 184280

Late phase inhibition of murine cytomegalovirus replication by synergistic action of interferon-gamma and tumour necrosis factor


Lučin, Pero; Jonjić, Stipan; Messerle, Martin; Polić, Bojan; Hengel, Hartmut; Koszinowski, H. Ulrich
Late phase inhibition of murine cytomegalovirus replication by synergistic action of interferon-gamma and tumour necrosis factor // Journal of general virology, 75 (1994), 1; 101-110 (međunarodna recenzija, članak, znanstveni)


Naslov
Late phase inhibition of murine cytomegalovirus replication by synergistic action of interferon-gamma and tumour necrosis factor

Autori
Lučin, Pero ; Jonjić, Stipan ; Messerle, Martin ; Polić, Bojan ; Hengel, Hartmut ; Koszinowski, H. Ulrich

Izvornik
Journal of general virology (0022-1317) 75 (1994), 1; 101-110

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
MCMV; IFN; TNF; CD4

Sažetak
We have shown previously that the antiviral function of CD4+ T lymphocytes against murine cytomegalovirus (MCMV) is associated with the release of interferon-gamma (IFN-gamma). We now demonstrate that IFN-gamma and tumour necrosis factor alpha (TNF-alpha) display synergism in their antiviral activity. As little as 2 ng/ml of IFN-gamma and TNF-alpha reduced the virus yield by about three orders of magnitude. There was no effect on immediate early (IE) and early (E) gene expression as far as the candidate genes IE1, E1 and those encoding the major DNA-binding protein and the DNA polymerase were concerned. Late gene transcription, assayed by the candidate genes encoding glycoprotein B and the MCMV homologue of ICP 18.5, was blocked and MCMV DNA replication was found to be reduced but not halted. The most prominent finding of the cytokine effect, seen by electron microscopy, was an alteration of nucleocapsid formation. Altogether, the synergism is multifaceted and acts at more than one stage during viral morphogenesis. Because the cytokines clearly do not act at an early stage of infection we conclude that the mode of cytokine activity differs between alpha- and betaherpesviruses.

Izvorni jezik
Engleski



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