Role of dendritic cells in differential susceptibility to viral demyelinating disease

Wanqiu Hou, Eui Young So, Byung S. Kim*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

26 Scopus citations


Although persistent viral diseases are a global health concern, the mechanisms of differential susceptibility to such infections among individuals are unknown. Here, we report that differential interactions between dendritic cells (DCs) and virus are critical in determining resistance versus susceptibility in the Theiler murine encephalomyelitis virus-induced demyelinating disease model of multiple sclerosis. This virus induces a chronic demyelinating disease in susceptible mice, whereas the virus is completely cleared in resistant strains of mice. DCs from susceptible mice are more permissive to viral infection, resulting in severe deficiencies in development, expansion, and function, in contrast to DCs from resistant mice. Although protective prior to viral infection, higher levels of type I interferons (IFNs) and IFN-γ produced by virus-infected DCs from susceptible mice further contribute to the differential inhibition of DC development and function. An increased DC number and/or acquired resistance of DCs to viral infection render susceptible mice resistant to viral persistence and disease progression. Thus, the differential permissiveness of DCs to infectious agents and its subsequent functional and developmental deficiencies determine the outcome of infection-associated diseases. Therefore, arming DCs against viral infection-induced functional decline may provide a useful intervention for chronic infection-associated diseases.

Original languageEnglish (US)
Pages (from-to)1036-1050
Number of pages15
JournalPLoS pathogens
Issue number8
StatePublished - Aug 2007

ASJC Scopus subject areas

  • Parasitology
  • Microbiology
  • Immunology
  • Molecular Biology
  • Genetics
  • Virology

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