title: Early interactions of herpes simplex virus with mouse peritoneal macrophages.
abstract: Adsorption of herpes simplex virus type 1 (HSV-1) and type 2 (HSV-2) to resident peritoneal macrophages (PM) of 4-week-old Swiss albino (SA) and GR/AFib mice was studied. A significantly (P less than 0.05) higher HSV-2 adsorption rate was found with PM of SA mice than with PM of GR/AFib mice. Of added HSV-2 65% bound to the cells of SA mice over a 120-min period versus 15% to PM of GR/AFib mice. Only 15 to 20% of added HSV-1 bound to PM regardless of the mouse strain. These patterns of adsorption were found with all four HSV-1 and four HSV-2 strains tested. Pretreatment of PM with an HSV-2 mutant blocked the adsorption of added HSV-2. Thus, the receptors for HSV attachment seemed to be virus type selective. To avoid masking of adsorption by phagocytotic activity, the adsorption studies had to be performed at 4 degrees C. Transport of attached HSV-1 and HSV-2 to the nuclei of SA PM was studied with purified virus labeled with 32Pi and [3H]thymidine. In double-isotope experiments, only transport of HSV-2 was detected. The possible importance of differences in density or avidity of virus-binding receptors on the plasma membrane of PM is discussed in relation to macrophage-dependent focal liver necrosis, which was only demonstrable after intraperitoneal inoculation of HSV-2, not HSV-1, only in SA, not GR/AFib, mice.
mesh_terms: D000327:Adsorption; D000818:Animals; D001202:Ascitic Fluid / Q000166:cytology; D002462:Cell Membrane / Q000382:microbiology; D002467:Cell Nucleus / Q000382:microbiology; D006561:Herpes Simplex / Q000473:pathology; D008099:Liver / Q000473:pathology; D008264:Macrophages / Q000382:microbiology*; D051379:Mice; D008815:Mice, Inbred Strains; D011991:Receptors, Virus / Q000378:metabolism; D018139:Simplexvirus / Q000502:physiology*
chemical_list: D011991:Receptors, Virus