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Scand J Immunol. 1978;8(5):413-20.

The recovery of mice from influenza A virus infection: adoptive transfer of immunity with influenza virus-specific cytotoxic T lymphocytes recognizing a common virion antigen.


Mice inoculated intranasally with infectious influenza virus of a given A strain were adoptively transferred 24 h later with preparations of secondary influenza virus-immune T cells generated either in vitro or entirely in vivo. The immune cells were raised during infection with homologous or heterologous A strain influenza viruses or with a type B virus. The greatest antiviral effect, measured by reduction in lung virus level of recipient mice, occurred if homologous viruses were used. Sharing of haemagglutinin specificity was shown to be important, but significant antiviral activity was still expressed if neither haemagglutinin nor neuraminidase antigenic specificities were shared. The antiviral effect was type-specific. Adoptive transfer of type A influenza immune T cells did not express antiviral activity against type B virus, and vice versa. On the basis of earlier work, the effector population in the transferred cells was cytotoxic T cells (Tc). Intranasal reinfection of mice with a heterologous type A virus sharing neither haemagglutinin nor neuraminidase antigenic specificity with the first infecting virus induced enhanced and earlier production of cross-reactive Tc against type A influenza viruses. This was paralleled by significantly lower virus levels in the lungs. The results of this work demonstrate heterotypic cell-mediated immunity in influenza virus infection in mice.

[Indexed for MEDLINE]

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