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Related Experiment Video

Updated: Jul 17, 2026

Generation of Human Monocyte-derived Dendritic Cells from Whole Blood

Generation of Human Monocyte-derived Dendritic Cells from Whole Blood

Published on: December 24, 2016

Differential dysfunction in dendritic cell subsets during chronic HCV infection.

Lynn Averill¹, William M Lee, Nitin J Karandikar

¹Department of Pathology, The University of Texas Southwestern Medical Center, Dallas, TX 75390, USA.

Clinical Immunology (Orlando, Fla.)

|January 24, 2007

Summary

Chronic Hepatitis C virus (HCV) infection impairs dendritic cell (DC) subsets. Plasmacytoid DCs show reduced IFN-alpha, while myeloid DCs have diminished T-cell stimulation capacity, impacting antiviral immunity.

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Published on: September 1, 2015

Area of Science:

Immunology
Virology
Hepatology

Background:

Hepatitis C virus (HCV) infection leads to chronic liver disease and suppressed T-cell responses.
Antigen-presenting cell (APC) dysfunction is a proposed mechanism for immune suppression in chronic HCV.
Previous studies on APCs in HCV have yielded conflicting results due to methodology.

Purpose of the Study:

To investigate the functional and immunophenotypic characteristics of distinct dendritic cell (DC) subsets ex vivo in chronic Hepatitis C virus (HCV) infection.
To clarify the specific roles of plasmacytoid DCs (PDCs) and myeloid DCs (MDCs) in immune dysregulation during chronic HCV.

Main Methods:

Ex vivo purification of dendritic cell (DC) subsets from patients with chronic Hepatitis C virus (HCV) infection.
Assessment of plasmacytoid DC (PDC) IFN-alpha production upon CpG stimulation.
Evaluation of myeloid DC (MDC) mixed lymphocyte response (MLR) induction, HLA-DR, CD86 expression, and IL-10 production upon poly-IC stimulation.

Main Results:

HCV-infected PDCs exhibited significantly reduced IFN-alpha production in response to CpG.
HCV-infected MDCs demonstrated impaired MLR induction capacity, linked to lower HLA-DR/CD86 and higher IL-10 levels after poly-IC stimulation.
An expanded immature/intermediate DC subset with low HLA-DR/CD86 expression was observed within the HCV-PDC population.

Conclusions:

Distinct and contrasting functional deficits exist in PDC and MDC subsets during chronic HCV infection.
Evaluating dendritic cell (DC) subpopulations separately is crucial for understanding immune dysregulation in Hepatitis C virus (HCV).
The findings highlight specific DC subset dysfunctions contributing to the overall immunosuppression observed in chronic HCV.