Chronic hepatitis C patients carry the risk of developing into B-cell non-Hodgkin's lymphoma (B-NHL). To clarify the mechanisms underlying this association, we first investigated the molecular markers of B cells from hepatitis C virus (HCV)-infected patients. CD19-positive cells were isolated as B cells from the peripheral blood mononuclear cells of patients infected with the hepatitis C virus and IFN-related gene expression was analyzed. We found that RIG-I and IRF-2 expression were up-regulated in CD19-positive cells from the infected patients. In vitro luciferase reporter analysis using human cell lines indicated that IRF-2 activates the human RIG-I promoter. IRF-2 expression levels were enhanced by HCV cDNA transfection in Huh7 cells. In addition, we observed much less induction in the interferon stimulated gene 15 (ISG15) after Sendai virus (SenV) stimulation of CD19-positive cells from infected patients versus healthy controls, thereby suggesting an impairment of RIG-I downstream signaling in HCV-infected patients. Hence, we found that the failure of the anti-viral response with enhanced IRF-2 oncogenic protein expression in blood B cells from HCV-infected patients. Our results provide important information to better understand the role of IRFs in the cause of HCV chronic infection.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.bbrc.2009.12.092 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
A randomized clinical study to evaluate the possible antifibrotic effect of zinc sulfate in chronic HCV patient receiving direct-acting anti-viral therapy.
Inflammopharmacology
January 2025
Department of Clinical Pharmacy, Faculty of Pharmacy, Tanta University, El-Gharbia Government, Tanta, Egypt.
Objective: This study aimed to assess the potential antifibrotic impact of zinc sulfate in chronic Hepatitis C Virus (HCV) patients receiving direct-acting antiviral therapy.
Methods: This randomized controlled study included 50 chronic HCV-infected patients with fibrosis stage (F1 & F2). Participants were randomly assigned to two groups: Group 1 (Control group, n = 25) received standard direct-acting antiviral therapy for 3 months, while Group 2 (Zinc group, n = 25) received 50 mg/day of zinc sulfate in addition to the standard direct-acting antiviral therapy for the same duration.
Tubulointerstitial nephritis antigen-like 1 promotes the progression of liver fibrosis after HCV eradication with direct-acting antivirals.
Int J Biol Sci
January 2025
CAMS Key Laboratory of Antiviral Drug Research, Institute of Medicinal Biotechnology, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, 100050, China.
Although therapies based on direct-acting antivirals (DAAs) effectively eradicate hepatitis C virus (HCV) in patients, there is still a high risk of liver fibrosis even after a sustained virological response. Therefore, it is of great clinical importance to understand the mechanism of potential factors that promote liver fibrosis after virological cure by treatment with DAAs. Here, we found that tubulointerstitial nephritis antigen-like 1 (TINAGL1) is significantly increased in HCV-infected hepatocytes and in the liver of patients with liver fibrosis, and that higher TINAGL1 expression persists in HCV-eradicated hepatocytes after treatment with DAAs.
View Article and Find Full Text PDFHCV and HBV genotypes: vital in the progression of HCV/ HBV co-infection.
BMC Gastroenterol
January 2025
Department of Community Health Sciences, College of Applied Medical Sciences, King Saud University, Riyadh, 11433, Saudi Arabia.
Background: Viral hepatitis is the major contributor to liver cirrhosis and hepatocellular carcinoma (HCC). Studies indicated that the co-infection of hepatitis C and hepatitis B virus also prompts liver damage progression. Therefore, in the present study, the prevalence of HCV-HBV co-infection and the impact of HCV-HBV co-infection on the progression of liver damage was evaluated amongst the HCV-infected patients in Pakistan.
View Article and Find Full Text PDFTreatment of Hepatitis C Virus Infections Among Patients of Ukrainian Origin During the Influx of War Refugees to Poland.
J Clin Med
December 2024
Department of Infectious Diseases and Hepatology, Medical University of Białystok, 15-540 Białystok, Poland.
The wave of wartime migration from Ukraine has raised a number of concerns about infectious diseases, the prevalence of which is higher in Ukraine than in host countries, with hepatitis C virus (HCV) infection being one of them. Our analysis aimed to assess the percentage of HCV-infected Ukrainian refugees under care in Polish centers providing antiviral diagnosis and therapy, to evaluate their characteristics and the effectiveness of treatment with direct-acting antiviral drugs (DAAs). The analysis included patients of Polish and Ukrainian nationality treated for HCV infection between 2022 and 2024 in Polish hepatology centers.
View Article and Find Full Text PDFEffectiveness of 8-week Treatment with Glecaprevir/Pibrentasvir in Treatment-naïve or -experienced HCV Patients: Results from an Observational Retrospective Study in Real-life Settings (ODYSSEY).
J Gastrointestin Liver Dis
December 2024
Digestive Diseases and Liver Transplantation Center, Fundeni Clinical Institute, Bucharest, Carol Davila University of Medicine and Pharmacy, Bucharest, Romania.
Background And Aims: Pan-genotypic ribavirin-free oral direct-acting antivirals, including the glecaprevir/pibrentasvir combination, are recommended for the treatment of most patients with chronic hepatitis C virus (HCV) infection. In Romania, the HCV-infected patient population receiving glecaprevir/pibrentasvir is not well characterized and data on treatment effectiveness is lacking. The ODYSSEY study aimed to provide insights into the characteristics and treatment outcomes of HCV-infected Romanian patients receiving 8-week therapy with glecaprevir/pibrentasvir.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!