The pathogenesis of Aleutian disease of mink. I. In vivo viral replication and the host antibody response to viral antigen.

Mink inoculated with 1 x 10(5)ID(50) of Aleutian disease virus revealed very high virus titers in the tissues 8-18 days later. The highest virus titers observed were 5 x 10(8)ID(50) per g of spleen and 1 x 10(9)ID(50) per g of liver 10 days after inoculation. Concomitant with the increase in infectious virus titers, viral antigen(s) was found in the cytoplasm of macrophages in the spleen and lymph nodes and in Kupffer cells in the liver. Antiviral antibody was assayed by indirect immunofluorescence, using sections of infected liver as the source of antigen. A few mink infected for 9 days and all those infected 10 days or more developed antibody to Aleutian disease virus antigen(s). By 60 days after infection, when hypergammaglobulinemia was marked, the mink had an exceptionally high mean antibody titer of 100,000. The pathogenesis of the glomerulonephritis of Aleutian disease is apparently related to formation of viral antigen-antibody-complement complexes which lodge in glomerular capillaries. No evidence was found that viral infection of the kidney took place, and no autoimmune responses were found. In this "slow-virus" disease the virus replicates rapidly and the morphologic and biochemical manifestations of disease are apparently due to the continuing interplay between a replicating antigen and the host immune response.
AuthorsD D Porter, A E Larsen, H G Porter
JournalThe Journal of experimental medicine (J Exp Med) Vol. 130 Issue 3 Pg. 575-93 (Sep 01 1969) ISSN: 0022-1007 [Print] United States
PMID4979953 (Publication Type: Journal Article)
  • Animals
  • Antibody Formation
  • Antigen-Antibody Reactions
  • Electrophoresis
  • Fluorescent Antibody Technique
  • Glomerulonephritis (etiology, immunology)
  • Kidney (immunology)
  • Liver
  • Lymph Nodes
  • Macrophages
  • Mink
  • Neutralization Tests
  • Spleen
  • Virus Diseases (etiology, immunology, veterinary)
  • Virus Replication
  • Viruses (analysis, growth & development)

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