Innate defense mechanisms against HSV-1 infection in the target tissues, skin and brain

Yael Tsalenchuck, Israel Steiner, Amos Panet

Research output: Contribution to journalArticlepeer-review

Abstract

Herpes simplex virus type 1 (HSV-1) initiates productive infection in mucocutaneous tissues to cause cold sores and establishes latent infection in the trigeminal ganglia. Under certain circumstances, HSV-1 may cause encephalitis. Here, we compared host innate defenses against HSV-1 in the two clinically relevant tissues, skin and brain, using a unique ex vivo system of organ culture. Upon HSV-1 infection and spread, apoptosis induction was observed in the skin, but not in brain tissues. While the two tissues elicited interferon (IFN-β) response upon HSV1 infection, IFN induction was more robust in the skin compared to the brain. Moreover, antiviral response to exogenous IFNβ treatment was much stronger in the skin compared to brain tissues. This observation was not related to the availability of the IFN receptor on cells’ surface. Taken together, our study demonstrates differential innate antiviral responses to HSV-1 infection that may be exploited in future development of selective and tissue-specific anti-viral treatments.

Original languageEnglish
Pages (from-to)641-649
Number of pages9
JournalJournal of NeuroVirology
Volume22
Issue number5
DOIs
StatePublished - 1 Oct 2016
Externally publishedYes

Keywords

  • Herpes simplex virus type 1
  • Interferons
  • Peripheral sensory ganglia

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