Interactions of human dermal dendritic cells and langerhans cells treated with hyalomma tick saliva with crimean-congo hemorrhagic fever virus

Sergio Rodriguez, Alexander J. McAuley, Aysen Gargili, Dennis Bente

Research output: Contribution to journalArticle

3 Scopus citations

Abstract

Crimean-Congo hemorrhagic fever virus is one the most important and wide spread tick-borne viruses. Very little is known about the transmission from the tick and the early aspects of pathogenesis. Here, we generate human cutaneous antigen presenting cells—dermal dendritic cells and Langerhans cells—from umbilical cord progenitor cells. In order to mimic the environment created during tick feeding, tick salivary gland extract was generated from semi-engorged Hyalomma marginatum ticks. Our findings indicate that human dermal dendritic cells and Langerhans cells are susceptible and permissive to Crimean-Congo hemorrhagic fever virus infection, however, to different degrees. Infection leads to cell activation and cytokine/chemokine secretion, although these responses vary between the different cell types. Hyalomma marginatum salivary gland extract had minimal effect on cell responses, with some synergy with viral infection with respect to cytokine secretion. However, salivary gland extract appeared to inhibit antigen presenting cells (APCs) migration. Based on the findings here we hypothesize that human dermal dendritic cells and Langerhans cells serve as early target cells. Rather affecting Crimean-Congo hemorrhagic fever virus replication, tick saliva likely immunomodulates and inhibits migration of these APCs from the feeding site.

Original languageEnglish (US)
Article number381
JournalViruses
Volume10
Issue number7
DOIs
StatePublished - Jul 20 2018

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Keywords

  • Crimean-congo hemorrhagic fever
  • Crimean-congo hemorrhagic fever virus
  • Dermal dendritic cells
  • Human cutaneous immune response
  • Hyalomma marginatum
  • Langerhans cells
  • Tick-borne virus
  • Tick-virus-host interface

ASJC Scopus subject areas

  • Infectious Diseases
  • Virology

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