title: Comparison of herpes simplex virus type 1 DNA replication and virus production in murine bone marrow-derived and resident peritoneal macrophages.
abstract: The mechanism of resistance of murine macrophages (M phi) to infection by herpes simplex virus type 1 (HSV-1) was examined. Infection of bone marrow-derived M phi (BMDM phi) and resident peritoneal M phi (Res-M phi) was compared with infection of permissive Vero cells. In contrast to HSV-1 infection in Vero cells, no infectious virus was produced from either M phi cell type. However, marked cytopathic effect (c.p.e.) was evident in BMDM phi at 48 h post-infection, while there was no c.p.e. at any time post-infection in the Res-M phi. Cloned EcoRI subgenomic fragments representing the entire HSV-1 genome were used as probes in DNA :DNA hybridization experiments to determine the viral genome content in the infected cell types. In Res-M phi, HSV-1 DNA was present at early times post-infection but declined rapidly. In BMDM phi, the virus genome was always detected and increased with time after infection. The results suggest that Res-M phi restrict HSV-1 production at a point prior to viral DNA synthesis, whereas the block in HSV production in BMDM phi occurs at a later stage in the viral replicative cycle.
authors.forename: K
authors.initials: K
authors.lastname: Leary
authors.forename: J R
authors.initials: JR
authors.lastname: Connor
authors.forename: P S
authors.initials: PS
authors.lastname: Morahan
mesh_terms: D000818:Animals; D001202:Ascitic Fluid; D001854:Bone Marrow Cells; D002460:Cell Line; D002522:Chlorocebus aethiops; D003588:Cytopathogenic Effect, Viral; D004261:DNA Replication; D004279:DNA, Viral / Q000096:biosynthesis; D005814:Genes, Viral; D008264:Macrophages / Q000382:microbiology*; D051379:Mice; D009693:Nucleic Acid Hybridization; D018139:Simplexvirus / Q000235:genetics / Q000502:physiology*; D014779:Virus Replication
chemical_list: D004279:DNA, Viral