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Interferon-? therapy prolongs survival in rhesus macaque models of Ebola and Marburg hemorrhagic fever.


ABSTRACT: There is a clear need for novel, effective therapeutic approaches to hemorrhagic fever due to filoviruses. Ebola virus hemorrhagic fever is associated with robust interferon (IFN)-? production, with plasma concentrations of IFN-? that greatly (60- to 100-fold) exceed those seen in other viral infections, but little IFN-? production. While all of the type I IFNs signal through the same receptor complex, both quantitative and qualitative differences in biological activity are observed after stimulation of the receptor complex with different type I IFNs. Taken together, this suggested potential for IFN-? therapy in filovirus infection. Here we show that early postexposure treatment with IFN-? significantly increased survival time of rhesus macaques infected with a lethal dose of Ebola virus, although it failed to alter mortality. Early treatment with IFN-? also significantly increased survival time after Marburg virus infection. IFN-? may have promise as an adjunctive postexposure therapy in filovirus infection.

SUBMITTER: Smith LM 

PROVIDER: S-EPMC3685222 | biostudies-literature | 2013 Jul

REPOSITORIES: biostudies-literature

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Interferon-β therapy prolongs survival in rhesus macaque models of Ebola and Marburg hemorrhagic fever.

Smith Lauren M LM   Hensley Lisa E LE   Geisbert Thomas W TW   Johnson Joshua J   Stossel Andrea A   Honko Anna A   Yen Judy Y JY   Geisbert Joan J   Paragas Jason J   Fritz Elizabeth E   Olinger Gene G   Young Howard A HA   Rubins Kathleen H KH   Karp Christopher L CL  

The Journal of infectious diseases 20121218 2


There is a clear need for novel, effective therapeutic approaches to hemorrhagic fever due to filoviruses. Ebola virus hemorrhagic fever is associated with robust interferon (IFN)-α production, with plasma concentrations of IFN-α that greatly (60- to 100-fold) exceed those seen in other viral infections, but little IFN-β production. While all of the type I IFNs signal through the same receptor complex, both quantitative and qualitative differences in biological activity are observed after stimul  ...[more]

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