PMID- 24942587 OWN - NLM STAT- MEDLINE DCOM- 20141212 LR - 20211021 IS - 1098-5514 (Electronic) IS - 0022-538X (Print) IS - 0022-538X (Linking) VI - 88 IP - 17 DP - 2014 Sep 1 TI - Intrinsic innate immunity fails to control herpes simplex virus and vesicular stomatitis virus replication in sensory neurons and fibroblasts. PG - 9991-10001 LID - 10.1128/JVI.01462-14 [doi] AB - Herpes simplex virus 1 (HSV-1) establishes lifelong latent infections in the sensory neurons of the trigeminal ganglia (TG), wherein it retains the capacity to reactivate. The interferon (IFN)-driven antiviral response is critical for the control of HSV-1 acute replication. We therefore sought to further investigate this response in TG neurons cultured from adult mice deficient in a variety of IFN signaling components. Parallel experiments were also performed in fibroblasts isolated concurrently. We showed that HSV-1 replication was comparable in wild-type (WT) and IFN signaling-deficient neurons and fibroblasts. Unexpectedly, a similar pattern was observed for the IFN-sensitive vesicular stomatitis virus (VSV). Despite these findings, TG neurons responded to IFN-beta pretreatment with STAT1 nuclear localization and restricted replication of both VSV and an HSV-1 strain deficient in gamma34.5, while wild-type HSV-1 replication was unaffected. This was in contrast to fibroblasts in which all viruses were restricted by the addition of IFN-beta. Taken together, these data show that adult TG neurons can mount an effective antiviral response only if provided with an exogenous source of IFN-beta, and HSV-1 combats this response through gamma34.5. These results further our understanding of the antiviral response of neurons and highlight the importance of paracrine IFN-beta signaling in establishing an antiviral state. IMPORTANCE: Herpes simplex virus 1 (HSV-1) is a ubiquitous virus that establishes a lifelong latent infection in neurons. Reactivation from latency can cause cold sores, blindness, and death from encephalitis. Humans with deficiencies in innate immunity have significant problems controlling HSV infections. In this study, we therefore sought to elucidate the role of neuronal innate immunity in the control of viral infection. Using neurons isolated from mice, we found that the intrinsic capacity of neurons to restrict virus replication was unaffected by the presence or absence of innate immunity. In contrast, neurons were able to mount a robust antiviral response when provided with beta interferon, a molecule that strongly stimulates innate immunity, and that HSV-1 can combat this response through the gamma34.5 viral gene. Our results have important implications for understanding how the nervous system defends itself against virus infections. CI - Copyright (c) 2014, American Society for Microbiology. All Rights Reserved. FAU - Rosato, Pamela C AU - Rosato PC AD - Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire, USA. FAU - Leib, David A AU - Leib DA AD - Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Lebanon, New Hampshire, USA david.a.leib@dartmouth.edu. LA - eng GR - P20 RR016437/RR/NCRR NIH HHS/United States GR - 5T32AI007519/AI/NIAID NIH HHS/United States GR - R01 EY009083/EY/NEI NIH HHS/United States GR - P20RR016437/RR/NCRR NIH HHS/United States GR - P01 AI098681/AI/NIAID NIH HHS/United States GR - R01 EY09083/EY/NEI NIH HHS/United States GR - T32 AI007519/AI/NIAID NIH HHS/United States PT - Journal Article PT - Research Support, N.I.H., Extramural DEP - 20140618 PL - United States TA - J Virol JT - Journal of virology JID - 0113724 RN - 77238-31-4 (Interferon-beta) SB - IM MH - Animals MH - Fibroblasts/*immunology/*virology MH - *Immunity, Innate MH - Interferon-beta/immunology MH - Mice MH - Mice, Knockout MH - Sensory Receptor Cells/*immunology/*virology MH - Simplexvirus/*immunology/physiology MH - Vesiculovirus/*immunology/physiology MH - Virus Replication PMC - PMC4136337 EDAT- 2014/06/20 06:00 MHDA- 2014/12/17 06:00 PMCR- 2015/03/01 CRDT- 2014/06/20 06:00 PHST- 2014/06/20 06:00 [entrez] PHST- 2014/06/20 06:00 [pubmed] PHST- 2014/12/17 06:00 [medline] PHST- 2015/03/01 00:00 [pmc-release] AID - JVI.01462-14 [pii] AID - 01462-14 [pii] AID - 10.1128/JVI.01462-14 [doi] PST - ppublish SO - J Virol. 2014 Sep 1;88(17):9991-10001. doi: 10.1128/JVI.01462-14. Epub 2014 Jun 18.