Effect of a retroviral immunodeficiency syndrome on murine cytomegalovirus-induced hepatitis.
Am J Pathol
; 150(3): 1089-100, 1997 Mar.
Article
en En
| MEDLINE
| ID: mdl-9060844
ABSTRACT
We have studied the effects of LP-BM5 MuLV-induced murine acquired immunodeficiency syndrome (MAIDS) on concomitant murine cytomegalovirus (MCMV) infection in the livers of C57BL mice. A delayed inflammatory response in livers of mice with MAIDS (M+) on day 4 was associated with impaired clearance of MCMV-infected cells 6 days after infection. This correlated with increased levels of inflammation and serum alanine transaminase. The latter reflects enhanced hepatic necrosis, which was evident histologically. Delayed-type hypersensitivity responses to MCMV antigen were unimpaired in M+ mice and were mediated by CD8+ cells. Depletion of NK1.1+ cells from M+ mice increased MCMV replication and associated liver damage on day 6, whereas CD8+ depletion had little effect. In contrast, in the presence of CD8+ cells M- C57BL mice did not require NK1.1+ cells for control of hepatic MCMV infection, but dual NK1.1+ and CD8+ depletion dramatically potentiated hepatic MCMV replication. Our results suggest that M+ mice may acquire non-NK1.1+ and non-CD8+ cells that are able to partially control hepatic MCMV infection. These findings are discussed with reference to mortality in M+ mice after high-dose MCMV infection, as this is initially delayed but ultimately higher than in M- controls.
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Síndrome de Inmunodeficiencia Adquirida del Murino
/
Muromegalovirus
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Infecciones por Herpesviridae
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Hepatitis Viral Animal
Límite:
Animals
Idioma:
En
Revista:
Am J Pathol
Año:
1997
Tipo del documento:
Article
País de afiliación:
Australia