Journal
HEPATOLOGY RESEARCH
Volume 21, Issue 2, Pages 117-125Publisher
ELSEVIER SCI IRELAND LTD
DOI: 10.1016/S1386-6346(01)00084-5
Keywords
dendritic cells; chronic hepatitis; CD83; interdigitating cells; HLA DR; antigen-presenting cells; T cells
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Although defective functions of peripheral blood or splenic antigen-presenting cells (APCs) are implicated in the pathogenesis of persistent infection in murine and human hepatitis B virus (HBV) and hepatitis C virus (HCV)-carriers, little is known regarding liver-infiltrating APCs in patients with chronic liver diseases. Using immunohistochemical methodology and antigen retrieval technique, we have detected APCs such as HLA DR-positive cells, interdigitating cells (IDCs) and CD83-positive mature and activated dendritic cells (DCs) at the liver specimens from 39 patients with chronic hepatitis (CH) and 10 patients with liver cirrhosis (LC). All 3 types of APCs were detected at the portal areas in both CH and LC, the most abundant being the HLA DR-positive APCs. CD83-positive, mature and activated DCs were detected in patients with CH around the areas of focal and confluent necrosis at the liver parenchyma in close association with T cells. The localization of CD83-positive mature and activated DCs at the liver tissues from patients with CH warrants further study about the role of these DCs in the induction of hepatocellular damage. This may also help to design DC-based therapy for patients with chronic liver diseases. (C) 2001 Elsevier Science B.V. All rights reserved.
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