Normal functional capacity in circulating myeloid and plasmacytoid dendritic cells in patients with chronic hepatitis C Academic Article uri icon


MeSH Major

  • Dendritic Cells
  • Hepatitis C
  • Hepatitis C, Chronic


  • Initial reports analyzing dendritic cell (DC) function in patients with hepatitis C virus (HCV) infection have been controversial. Here, we enumerate and characterize the function of circulating myeloid and plasmacytoid DCs. The results show lower percentages of myeloid DCs (0.62 vs. 0.83; P = .05) and plasmacytoid DCs (0.11 vs. 0.34; P = .004) in patients with chronic HCV infection than in healthy, non-HCV-infected individuals. Despite the lower numbers of circulating myeloid DCs present, no phenotypic or functional defects were identified. The lower percentage of plasmacytoid DCs resulted in decreased absolute interferon (IFN)-alpha production; however, when analyzed on a per-cell basis, plasmacytoid DCs from HCV-infected patients generated levels of IFN-alpha equivalent to those generated by DCs from healthy, non-HCV-infected individuals. Contrary to data from previous models (which attributed HCV pathogenesis to defects in the DC compartment), our data reveal functional DC subsets in patients with chronic HCV infection. These results are encouraging for DC-based HCV immunotherapy trials.

publication date

  • August 2005



  • Academic Article



  • eng

Digital Object Identifier (DOI)

  • 10.1086/431523

PubMed ID

  • 15995965

Additional Document Info

start page

  • 497

end page

  • 503


  • 192


  • 3