Monitoring the antiviral effect of alpha interferon on individual cells.
نویسندگان
چکیده
An infectious hepatitis C virus (HCV) cDNA clone (JFH1) was generated recently. However, quantitative analysis of HCV infection and observation of infected cells have proved to be difficult because the yield of HCV in cell cultures is fairly low. We generated infectious HCV clones containing the convenient reporters green fluorescent protein (GFP) and Renilla luciferase in the NS5a-coding sequence. The new viruses responded to antiviral agents in a dose-dependent manner. Responses of individual cells containing HCV to alpha interferon (IFN-alpha) were monitored using GFP-tagged HCV and time-lapse confocal microscopy. Marked variations in the response to IFN-alpha were observed among HCV-containing cells.
منابع مشابه
Induction of antiviral factors by IFN-α 2a is time and dose dependent
Background and Aims: Interferon alpha is an effective cytokine in viral infections, where it has various roles in immune function. The use of this antiviral agent in the treatment of viral infections and even cancers is common, although, the beneficial effects of this antiviral agent in high doses can be associated with side effects that limit its use. In this project, we tried to investigate t...
متن کاملThe Effect of SB431542, TGF-β Receptor Inhibitor, on HCV Replication in PBMCs of Patients with Chronic Hepatitis
Background and Aims: TGF-β is an effective cytokine in the viral replication cycle, which is also highly relevant to the pathogenesis of some viral infections. TGF-β induction by viral proteins is one of the ways to escape the virus from the immune system by inhibiting interferon signaling and other immune system factors. In recent years, the role of TGF-β and its inhibitor...
متن کاملImpact of “Sambhav” Program (Financial Assistance and Counselor Services) on Hepatitis C Pegylated Interferon Alpha Treatment Initiation in India
Background Financial constraints, social taboos and beliefs in alternative medicine are common reasons for delaying or not considering treatment for hepatitis C in India. The present study was planned to analyze the impact of non-banking interest free loan facility in patients affected with hepatitis C virus (HCV) in North India. Methods This one year observational, re...
متن کاملReview on Interferon beta: from cells to clinical usage
Introduction: Interferon (IFN) was first introduced by Isaacs and Linddeman in 1957. It referred to a factor that could cause inhibition in the growth of the live influenza virus. Interferons are intracellular proteins that are involved in many cellular processes such as growth, proliferation, differentiation, metabolism of the extracellular matrix, apoptosis, and regulating immune responses. T...
متن کاملToxicity and bioactivity evaluation of interferon alpha-2b conjugated with solid lipid nanoparticles
Background: Interferon (IFN) are small proteins that belong to the cytokine family and may interfere with viral infections and some cancers. There are many studies focused on the PEGylated interferon’s bioactivity. In this study, we used solid lipid nanoparticles (SLNs) to produce new drug formulations, with the aim of reducing costs, increasing effectiveness, and also reducing side effects, an...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
برای دانلود متن کامل این مقاله و بیش از 32 میلیون مقاله دیگر ابتدا ثبت نام کنید
ثبت ناماگر عضو سایت هستید لطفا وارد حساب کاربری خود شوید
ورودعنوان ژورنال:
- Journal of virology
دوره 81 16 شماره
صفحات -
تاریخ انتشار 2007