Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
2004-8-17
pubmed:abstractText
Hepatitis C virus (HCV) frequently causes chronic liver disease. The cause of viral persistence might be an inappropriate type I interferon (IFN) induction. To analyze the host's IFN response in chronic hepatitis C, we measured the transcription level of type I IFN genes as well as type I IFN-regulated genes in liver tissue and corresponding blood samples from patients with chronic hepatitis C, nonviral liver diseases, and a suspected but later excluded liver disease. Competitive and real-time RT-PCR assays were used to quantify the messenger RNA (mRNA) levels of all known IFN-alpha, IFN-beta, and IFN-lambda genes and those of some IFN-regulated genes. We failed to detect any hepatic type I IFN mRNA induction, although liver tissue of chronic hepatitis C patients contained high numbers of some type I IFN-inducible effector mRNA molecules. Analysis of peripheral blood samples, however, showed a clear type I IFN induction. Parallel experiments employing HCV replicon cell lines revealed that replication of HCV RNA is not sufficient to induce any type I IFN nor to induce directly type I IFN-regulated genes such as MxA. In conclusion, our data provide evidence for the absence of an induction of type I IFN genes by HCV in the human liver and argue for a further development of type I IFN-based therapies.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0023-6837
pubmed:author
pubmed:issnType
Print
pubmed:volume
84
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
1148-59
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:15208644-Adolescent, pubmed-meshheading:15208644-Adult, pubmed-meshheading:15208644-Aged, pubmed-meshheading:15208644-Carcinoma, Hepatocellular, pubmed-meshheading:15208644-Cell Line, Tumor, pubmed-meshheading:15208644-Female, pubmed-meshheading:15208644-Gene Expression Regulation, Viral, pubmed-meshheading:15208644-Hepacivirus, pubmed-meshheading:15208644-Hepatitis C, Chronic, pubmed-meshheading:15208644-Hepatocytes, pubmed-meshheading:15208644-Humans, pubmed-meshheading:15208644-Interferon Type I, pubmed-meshheading:15208644-Liver, pubmed-meshheading:15208644-Male, pubmed-meshheading:15208644-Middle Aged, pubmed-meshheading:15208644-RNA, Messenger, pubmed-meshheading:15208644-RNA, Viral, pubmed-meshheading:15208644-Replicon, pubmed-meshheading:15208644-Reverse Transcriptase Polymerase Chain Reaction, pubmed-meshheading:15208644-Transcription, Genetic, pubmed-meshheading:15208644-Virus Replication
pubmed:year
2004
pubmed:articleTitle
Interferon type I gene expression in chronic hepatitis C.
pubmed:affiliation
Division of Gastroenterology and Endocrinology, Department of Internal Medicine, Georg-August-Universität, Göttingen, Germany. smihm@med.uni-goettingen.de
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't