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STAT4 regulates antiviral gamma interferon responses and recurrent disease during herpes simplex virus 2 infection.


ABSTRACT: STAT4 is an important transcription factor that contributes to the incidence and severity of different autoimmune diseases and is implicated in the antiviral immune responses in mice. In this study, we evaluated the role of STAT4 in human and murine herpes simplex virus 2 (HSV-2) infections. We show that STAT4 regulates antiviral gamma interferon (IFN-?) responses and disease severity during chronic HSV-2 infections in humans and vaccine-induced IFN-?-mediated protection against HSV-2 infection in mice. In a cohort of 228 HSV-2-infected individuals, representing both patients with recurrent disease and asymptomatic HSV-2 carriers, we found that genetic variations in the STAT4 gene were associated with asymptomatic HSV-2 infection, as well as with increased in vitro secretion of IFN-? in response to the virus. Mice that lacked STAT4 had impaired HSV-2-specific IFN-? production and delayed-type hypersensitivity responses following vaccination, which led to impaired viral clearance in the genital tract of vaccinated animals after a genital HSV-2 challenge. We conclude that STAT4 plays an important role in IFN-?-mediated HSV-2-specific immunity, affecting the severity of genital HSV-2 infection.

SUBMITTER: Svensson A 

PROVIDER: S-EPMC3416106 | biostudies-literature | 2012 Sep

REPOSITORIES: biostudies-literature

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STAT4 regulates antiviral gamma interferon responses and recurrent disease during herpes simplex virus 2 infection.

Svensson Alexandra A   Tunbäck Petra P   Nordström Inger I   Shestakov Andrey A   Padyukov Leonid L   Eriksson Kristina K  

Journal of virology 20120620 17


STAT4 is an important transcription factor that contributes to the incidence and severity of different autoimmune diseases and is implicated in the antiviral immune responses in mice. In this study, we evaluated the role of STAT4 in human and murine herpes simplex virus 2 (HSV-2) infections. We show that STAT4 regulates antiviral gamma interferon (IFN-γ) responses and disease severity during chronic HSV-2 infections in humans and vaccine-induced IFN-γ-mediated protection against HSV-2 infection  ...[more]

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