PMID- 21145813 OWN - NLM STAT- MEDLINE DCOM- 20110817 LR - 20240109 IS - 1600-0641 (Electronic) IS - 0168-8278 (Linking) VI - 54 IP - 5 DP - 2011 May TI - Interferon-lambda serum levels in hepatitis C. PG - 859-65 LID - 10.1016/j.jhep.2010.08.020 [doi] AB - BACKGROUND & AIMS: Dendritic cells (DCs) trigger adaptive immune responses and are an important source of antiviral cytokines. In hepatitis C virus (HCV) infection DC function is markedly impaired. Thus far, studies have focused on types I and II interferon (IFN). We studied IFN-lambda1 (IL-29) and IFN-lambda2/3 (IL-28A/B) serum levels in patients with different outcomes of HCV infection. METHODS: IFN-lambdas were measured by ELISAs detecting IL-29 or IL-28A and IL-28B, respectively. Results were stratified with respect to the recently discovered rs12979860 T/C polymorphism upstream of the IL-28B gene. RESULTS: In general IL-29 serum levels exceeded IL-28A/B at least twofold, with IL-29 and IL-28A/B levels being significantly higher in carriers of the rs12979860 C allele than in TT homozygous individuals (p<0.02). IL-29 levels were substantially lower in patients with chronic hepatitis C than in healthy controls (p=0.005) and patients with spontaneously resolved hepatitis (p=0.001). Patients with acute hepatitis C showed IL-29 levels intermediate between chronic hepatitis C and normal controls; and IL-29 serum levels were higher in patients who spontaneously resolved hepatitis C than in those who became chronic. In vitro HCV proteins NS3 and E2 directly inhibited IL-29 production in poly I:C-stimulated purified DCs. CONCLUSIONS: Our data suggest that HCV proteins modify IFN-lambda production in DCs. Carriers of the rs12979860 C allele associated with resolution of HCV infection exhibited increased IFN-lambda levels. Moreover, high IFN-lambda levels predisposed to spontaneous resolution of HCV infection. Thus, IFN-lambdas seem to play an important role in the control of hepatitis C. CI - Copyright (c) 2010 European Association for the Study of the Liver. Published by Elsevier B.V. All rights reserved. FAU - Langhans, Bettina AU - Langhans B AD - Department of Internal Medicine I, University of Bonn, Bonn, Germany. bettina.langhans@ukb.uni-bonn.de FAU - Kupfer, Bernd AU - Kupfer B FAU - Braunschweiger, Ingrid AU - Braunschweiger I FAU - Arndt, Simone AU - Arndt S FAU - Schulte, Wibke AU - Schulte W FAU - Nischalke, Hans Dieter AU - Nischalke HD FAU - Nattermann, Jacob AU - Nattermann J FAU - Oldenburg, Johannes AU - Oldenburg J FAU - Sauerbruch, Tilman AU - Sauerbruch T FAU - Spengler, Ulrich AU - Spengler U LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20101023 PL - Netherlands TA - J Hepatol JT - Journal of hepatology JID - 8503886 RN - 0 (Antigens, CD) RN - 0 (CD81 protein, human) RN - 0 (interferon-lambda, human) RN - 0 (Interleukins) RN - 0 (NS3 protein, hepatitis C virus) RN - 0 (TLR2 protein, human) RN - 0 (Tetraspanin 28) RN - 0 (Toll-Like Receptor 2) RN - 0 (Viral Envelope Proteins) RN - 0 (Viral Nonstructural Proteins) RN - 157184-61-7 (glycoprotein E2, Hepatitis C virus) RN - 9008-11-1 (Interferons) SB - IM CIN - J Hepatol. 2011 May;54(5):844-7. PMID: 21145814 MH - Adult MH - Aged MH - Antigens, CD/immunology MH - Cross-Sectional Studies MH - Dendritic Cells/immunology MH - Female MH - Genotype MH - Hepacivirus/*genetics/immunology MH - Hepatitis C, Chronic/*immunology/*metabolism/virology MH - Humans MH - Interferons MH - *Interleukins/blood/genetics/immunology MH - Male MH - Middle Aged MH - Polymorphism, Genetic MH - Prognosis MH - Tetraspanin 28 MH - Toll-Like Receptor 2/immunology MH - Viral Envelope Proteins/genetics MH - Viral Load/immunology MH - Viral Nonstructural Proteins/genetics EDAT- 2010/12/15 06:00 MHDA- 2011/08/19 06:00 CRDT- 2010/12/15 06:00 PHST- 2010/01/11 00:00 [received] PHST- 2010/07/29 00:00 [revised] PHST- 2010/08/04 00:00 [accepted] PHST- 2010/12/15 06:00 [entrez] PHST- 2010/12/15 06:00 [pubmed] PHST- 2011/08/19 06:00 [medline] AID - S0168-8278(10)00922-0 [pii] AID - 10.1016/j.jhep.2010.08.020 [doi] PST - ppublish SO - J Hepatol. 2011 May;54(5):859-65. doi: 10.1016/j.jhep.2010.08.020. Epub 2010 Oct 23.