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. 1991;121(1-4):89-100.
doi: 10.1007/BF01316746.

The role of gamma interferon in infection of susceptible mice with murine coronavirus, MHV-JHM

A L Smith  1 , S W Barthold, M S de Souza, K Bottomly
Affiliations

The role of gamma interferon in infection of susceptible mice with murine coronavirus, MHV-JHM

A L Smith et al. Arch Virol. 1991.

Abstract

Infection of BALB/c mice with mouse hepatitis virus, strain JHM (MHV-JHM), at any of several intervals relative to ovalbumin (OVA) administration resulted in elevated OVA-specific IgG 2 a titers. Since gamma interferon (IFN) has been implicated as an up-regulator of IgG 2 a production, attempts were made to determine whether levels of this cytokine were modified in sera of infected mice. Serum IFN-gamma was not detected, but treatment of MHV-JHM-infected mice with monoclonal anti-IFN-gamma antibody resulted in high mortality with decreased survival times, enhanced virus titers in liver and spleen, and more severe virus-associated pathology, compared to mock-treated, infected mice. Immunotherapy with recombinant IFN-gamma ameliorated disease as reflected by mortality rates and virus titers in target organs.

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