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Circulating Vα24+Vβ11+ NKT cell numbers and dendritic cell CD1d expression in hepatitis C virus infected patients
- Source :
-
Clinical Immunology . Feb2005, Vol. 114 Issue 2, p183-189. 7p. - Publication Year :
- 2005
-
Abstract
- Abstract: CD1d-restricted natural killer T (NKT) cells are involved in the regulation of various immune responses, and have been shown to inhibit viral replication in animal hepatitis models when activated by the glycolipid α-galactosylceramide (α-GalCer, KRN7000). Previous studies have indicated that α-GalCer-induced activation of the immune system requires both CD1d expression by antigen-presenting cells as well as (normal) numbers of NKT cells. Discrepancies exist over circulating numbers of human invariant Vα24+Vβ11+ NKT cells during hepatitis C virus (HCV) infection. Here, by cross-sectional analysis and longitudinal analysis of patients undergoing effective combination antiviral therapy, we demonstrate that circulating Vα24+Vβ11+ NKT cell numbers are not decreased during active HCV infection. Importantly, as we also show that CD1d is expressed at comparable levels by peripheral blood monocytes and CD1c+ myeloid dendritic cells (DC) of healthy individuals and HCV-infected patients, these data indicate that all ingredients for evaluating the antiviral effects of the Vα24+Vβ11+ NKT cell ligand α-GalCer in HCV-infected patients are present. [Copyright &y& Elsevier]
- Subjects :
- *LIVER diseases
*DENDRITIC cells
*HEPATITIS C virus
*IMMUNE response
Subjects
Details
- Language :
- English
- ISSN :
- 15216616
- Volume :
- 114
- Issue :
- 2
- Database :
- Academic Search Index
- Journal :
- Clinical Immunology
- Publication Type :
- Academic Journal
- Accession number :
- 16031097
- Full Text :
- https://doi.org/10.1016/j.clim.2004.10.001