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Macrophage immunity to influenza virus: in vitro and in vivo studies #MMPMID89051
Bruinink A; Haller O
Exp Cell Biol 1979[]; 47 (3): 190-201 PMID89051show ga
Using M-TUR, a macrophage-adapted avian influenza A virus (Hav1, Nav3), antiviral resistance of peritoneal macrophages obtained from specifically or nonspecifically immunized mice towards in vitro infection was assessed. M-TUR grew to high titers in macrophages from nonimmune mice thereby causing a marked cytopathic effect. In contrast, peritoneal macrophages from mice specifically immunized with TUR virus were not affected by infection with M-TUR in vitro. This antiviral immunity was specific: mice immunized with antigenetically unrelated influenza strains such as influenza A/Hong Kong/1/68 (H3, N2) or influenza B/Lee yielded susceptible macrophages. Specific macrophage immunity could be abrogated by trypsin treatment in vitro. Susceptible macrophages from nonimmune hosts became resistant following in vitro exposure to homologous anti-TUR sera. Peritoneal exudate cells from BCG-infected animals were less susceptible to in vitro challenge with M-TUR than control macrophages. In vivo treatment of mice with the unspecific immunostimulants BCG or Corynebacterium parvum did not protect the animals against lethal infection with a hepatotropic variant of TUR.
Exp+Cell+Biol 1979 ; 47 (3): 190-201
